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From: Ron Bonica <rbonica@juniper.net>
To: Robert Raszuk <robert@raszuk.net>
CC: SPRING WG <spring@ietf.org>
Thread-Topic: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6raI>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6
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Robert,

A first attempt to answer the question follows.....

Generally speaking there is feature parity between SR-MPLS and SRv6. For ex=
ample:


  *   Both can steer a packet through an SR path
  *   Both support flexalgo
  *   Both support fast reroute using TI-LFA
  *   Both can support service instructions

In terms of feature functionality, I can see only one difference between SR=
-MPLS and SRv6. That is, in SR-MPLS, the SR path is encoded in an MPLS labe=
l stack and the MPLS label stack is popped away at each segment endpoint. B=
y contrast, in SRv6, the SR path is encoded in an SRH and the SRH is retain=
ed until it reaches the SR egress node. So, the SR egress node, in some cas=
e, can construct a reverse path from information contained in the SRH.

The difference between SR-MPLS and SRv6 isn't so much about feature functio=
nality as it is about where each can be deployed. For example:


  *   SR-MPLS is applicable only in MPLS-capable networks
  *   SRv6 is applicable only in IPv6-capable networks
  *   SR-MPLS is applicable in networks where some SR paths contain a large=
 number of segments. For example, if an SR-path contains 8 segments, it cou=
ld be represented by an MPLS label stack that contains eight entries (i.e.,=
 32-bytes, total).
  *   SRv6 is not applicable in networks where some SR paths contain a larg=
e number of segments. For example, if an SR-path contains 8 segments, it wo=
uld be unreasonable to represent it with an SRH that contains 7 SIDS (i.e.,=
 120 bytes, total).


Note......

Robert, in your previous email, you suggest SRv6 has a scaling advantage ov=
er SR-MPLS in networks where the SR domain spans any of the following:


  *   Two ISIS levels
  *   Two OSPF area
  *   Two Autonomous systems

Can you help with this section? In SR-MPLS, I am not sure that every node S=
ID needs to be leak across boundaries. Only those of ABRs and ASBRs. Am I m=
issing something?

                                                                           =
 Ron








Juniper Business Use Only
From: Ron Bonica
Sent: Monday, December 30, 2019 11:35 AM
To: Robert Raszuk <robert@raszuk.net>
Cc: SPRING WG <spring@ietf.org>
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Robert,

I just realized that you are a contributor. So, I will take that as an invi=
tation to contribute my two cents.

Please stand by. It will take an hour or two to craft a well-considered res=
ponse and it may not be ready before I shut down for the holiday.

                                                                           =
     Happy New Year,
                                                                           =
        Ron

From: Robert Raszuk <robert@raszuk.net<mailto:robert@raszuk.net>>
Sent: Monday, December 30, 2019 8:41 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,

I beg your pardon, but what are you trying to say?

Isn't this a WG document now and *any* WG member is fully entitled to comme=
nt on any question asked or point being raised ? Leave alone formal documen=
t contributor.

Are you saying that answers from those listed on top of the draft carries m=
ore weight ? Is this some new IETF process you are trying to define here ?

Once document transitions to WG doc status authors who own src are becoming=
 just editors with the obligation to incorporate WG suggested changes which=
 got approved via rough consensus as judged by chairs. Are you questioning =
that too ?

Thx,
R.

On Mon, Dec 30, 2019 at 1:19 PM Ron Bonica <rbonica@juniper.net<mailto:rbon=
ica@juniper.net>> wrote:
Robert,

We should probably let the authors decide if that is part of the answer to =
my question.

                                                                           =
  Ron


Juniper Business Use Only

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</head>
<body lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal">Robert,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">A first attempt to answer the question follows&#8230=
;..<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Generally speaking there is feature parity between S=
R-MPLS and SRv6. For example:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<ul style=3D"margin-top:0in" type=3D"disc">
<li class=3D"MsoListParagraph" style=3D"margin-left:0in;mso-list:l1 level1 =
lfo3">Both can steer a packet through an SR path<o:p></o:p></li><li class=
=3D"MsoListParagraph" style=3D"margin-left:0in;mso-list:l1 level1 lfo3">Bot=
h support flexalgo<o:p></o:p></li><li class=3D"MsoListParagraph" style=3D"m=
argin-left:0in;mso-list:l1 level1 lfo3">Both support fast reroute using TI-=
LFA<o:p></o:p></li><li class=3D"MsoListParagraph" style=3D"margin-left:0in;=
mso-list:l1 level1 lfo3">Both can support service instructions<o:p></o:p></=
li></ul>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">In terms of feature functionality, I can see only on=
e difference between SR-MPLS and SRv6. That is, in SR-MPLS, the SR path is =
encoded in an MPLS label stack and the MPLS label stack is popped away at e=
ach segment endpoint. By contrast,
 in SRv6, the SR path is encoded in an SRH and the SRH is retained until it=
 reaches the SR egress node. So, the SR egress node, in some case, can cons=
truct a reverse path from information contained in the SRH.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">The difference between SR-MPLS and SRv6 isn&#8217;t =
so much about feature functionality as it is about where each can be deploy=
ed. For example:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<ul style=3D"margin-top:0in" type=3D"disc">
<li class=3D"MsoListParagraph" style=3D"margin-left:0in;mso-list:l1 level1 =
lfo3">SR-MPLS is applicable only in MPLS-capable networks<o:p></o:p></li><l=
i class=3D"MsoListParagraph" style=3D"margin-left:0in;mso-list:l1 level1 lf=
o3">SRv6 is applicable only in IPv6-capable networks<o:p></o:p></li><li cla=
ss=3D"MsoListParagraph" style=3D"margin-left:0in;mso-list:l1 level1 lfo3">S=
R-MPLS is applicable in networks where some SR paths contain a large number=
 of segments. For example, if an SR-path contains 8 segments, it could be r=
epresented by an MPLS label stack
 that contains eight entries (i.e., 32-bytes, total).<o:p></o:p></li><li cl=
ass=3D"MsoListParagraph" style=3D"margin-left:0in;mso-list:l1 level1 lfo3">=
SRv6 is not applicable in networks where some SR paths contain a large numb=
er of segments. For example, if an SR-path contains 8 segments, it would be=
 unreasonable to represent it
 with an SRH that contains 7 SIDS (i.e., 120 bytes, total).<o:p></o:p></li>=
</ul>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Note&#8230;&#8230;<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Robert, in your previous email, you suggest SRv6 has=
 a scaling advantage over SR-MPLS in networks where the SR domain spans any=
 of the following:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<ul style=3D"margin-top:0in" type=3D"disc">
<li class=3D"MsoListParagraph" style=3D"margin-left:0in;mso-list:l1 level1 =
lfo3">Two ISIS levels<o:p></o:p></li><li class=3D"MsoListParagraph" style=
=3D"margin-left:0in;mso-list:l1 level1 lfo3">Two OSPF area<o:p></o:p></li><=
li class=3D"MsoListParagraph" style=3D"margin-left:0in;mso-list:l1 level1 l=
fo3">Two Autonomous systems<o:p></o:p></li></ul>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Can you help with this section? In SR-MPLS, I am not=
 sure that every node SID needs to be leak across boundaries. Only those of=
 ABRs and ASBRs. Am I missing something?<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ron<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0in;margin=
-bottom:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b>From:</b> Ron Bonica <br>
<b>Sent:</b> Monday, December 30, 2019 11:35 AM<br>
<b>To:</b> Robert Raszuk &lt;robert@raszuk.net&gt;<br>
<b>Cc:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Subject:</b> RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Robert,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">I just realized that you are a contributor. So, I wi=
ll take that as an invitation to contribute my two cents.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Please stand by. It will take an hour or two to craf=
t a well-considered response and it may not be ready before I shut down for=
 the holiday.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Happy New Year,<o:p></o:p><=
/p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p><=
/o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><b>From:</b> Robert Raszuk &lt;<a href=3D"mailto:rob=
ert@raszuk.net">robert@raszuk.net</a>&gt;
<br>
<b>Sent:</b> Monday, December 30, 2019 8:41 AM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;<br>
<b>Cc:</b> SPRING WG &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org=
</a>&gt;<br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<div>
<p class=3D"MsoNormal">Ron,<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">I beg&nbsp;your pardon, but what are you trying to&n=
bsp;say?&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Isn't this a WG document now and *any* WG member is =
fully entitled to comment&nbsp;on any question asked or point&nbsp;being ra=
ised ? Leave alone formal document contributor.&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Are you saying that answers from those listed on top=
 of the draft carries more weight ? Is this some new IETF process you are t=
rying to define here ?&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Once document transitions to WG doc status authors w=
ho own src are becoming&nbsp;just editors with the&nbsp;obligation to incor=
porate WG suggested changes which got approved via rough consensus as judge=
d by chairs. Are you questioning that too ?&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Thx,<br>
R.<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<div>
<p class=3D"MsoNormal">On Mon, Dec 30, 2019 at 1:19 PM Ron Bonica &lt;<a hr=
ef=3D"mailto:rbonica@juniper.net">rbonica@juniper.net</a>&gt; wrote:<o:p></=
o:p></p>
</div>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0i=
n 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-=
bottom:5.0pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Robert,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">We should probably let the authors decide if that is part of the a=
nswer to my question.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0in;margin=
-bottom:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
</div>
</div>
</blockquote>
</div>
</div>
</div>
</body>
</html>

--_000_BN7PR05MB3938963BCD78C8747521ED3FAE210BN7PR05MB3938namp_--


From nobody Wed Jan  1 13:07:10 2020
Return-Path: <robert@raszuk.net>
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From: Robert Raszuk <robert@raszuk.net>
Date: Wed, 1 Jan 2020 22:06:55 +0100
Message-ID: <CAOj+MMHvY4b5o=GOAhFGCX1ZqiSGVDM3UKC0Jrj2ZweZe0ph0w@mail.gmail.com>
To: Ron Bonica <rbonica@juniper.net>
Cc: SPRING WG <spring@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/cKgERfZs7DmHFy2NVg9wK8iuCjk>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6
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Hi Ron,

Three observations:

A)

I am afraid feature or capability parity between SRv6 and SR-MPLS is far
from equal. Sure if you consider just TE or VPN applications one could draw
such a conclusion. However where I see SRv6 evolving is actually into very
flexible operator defined embedded functions with dynamic arguments.

Yes many legacy hardware will have issues to handle such processing, but
one can hope that this will be smooth evolution where new hardware will
replace incapable units. Those customers who will see a need to deploy such
functionality will likely choose proper devices.

While P routers usually will not need such capabilities edge routers may do
... really soon :).

B)

Your claim and calculations that just say for TE over 8 segments with SRv6
you will need to burn 120 bytes does not consider uSID proposal. I would
call it a bit unfair.

C)

> Only those of ABRs and ASBRs. Am I missing something?

Yes you are. Think that I want to simply remove LDP and happen to use
option C across N ASes. Today with LDP and option C I need to handle 1000s
of PEs FECs as top label in my VPN packets is remote PE. So with SR-MPLS I
need all of those 1000s of PEs to be seen flat all over my domains or
areas.

I realize that you may recommend to add SR stack to closest ABR/ASBR ...
then another label to an other ABR/ASBR while looks cool on ppt in reality
this is operationally broken idea.

When such ABR/ASBR fails I need to fall over to a backup one with local
repair at its PHP. When each such label is different this does not work any
more ... I need to go to src PE to adjust the packets.

Then you may say I may use anycast MPLS SID ... well that also looks nice
on ppt only. Hint: not all ABRs/ASBRs lead to the same end networks.

So now please imagine the burden and amount of OPEX required only to keep
MPLS transport on its life support ... for no good reason as compared with
IP transport and basic IP longest match routing.

Best,
R.


On Wed, Jan 1, 2020 at 9:01 PM Ron Bonica <rbonica@juniper.net> wrote:

> Robert,
>
>
>
> A first attempt to answer the question follows=E2=80=A6..
>
>
>
> Generally speaking there is feature parity between SR-MPLS and SRv6. For
> example:
>
>
>
>    - Both can steer a packet through an SR path
>    - Both support flexalgo
>    - Both support fast reroute using TI-LFA
>    - Both can support service instructions
>
>
>
> In terms of feature functionality, I can see only one difference between
> SR-MPLS and SRv6. That is, in SR-MPLS, the SR path is encoded in an MPLS
> label stack and the MPLS label stack is popped away at each segment
> endpoint. By contrast, in SRv6, the SR path is encoded in an SRH and the
> SRH is retained until it reaches the SR egress node. So, the SR egress
> node, in some case, can construct a reverse path from information contain=
ed
> in the SRH.
>
>
>
> The difference between SR-MPLS and SRv6 isn=E2=80=99t so much about featu=
re
> functionality as it is about where each can be deployed. For example:
>
>
>
>    - SR-MPLS is applicable only in MPLS-capable networks
>    - SRv6 is applicable only in IPv6-capable networks
>    - SR-MPLS is applicable in networks where some SR paths contain a
>    large number of segments. For example, if an SR-path contains 8 segmen=
ts,
>    it could be represented by an MPLS label stack that contains eight ent=
ries
>    (i.e., 32-bytes, total).
>    - SRv6 is not applicable in networks where some SR paths contain a
>    large number of segments. For example, if an SR-path contains 8 segmen=
ts,
>    it would be unreasonable to represent it with an SRH that contains 7 S=
IDS
>    (i.e., 120 bytes, total).
>
>
>
>
>
> Note=E2=80=A6=E2=80=A6
>
>
>
> Robert, in your previous email, you suggest SRv6 has a scaling advantage
> over SR-MPLS in networks where the SR domain spans any of the following:
>
>
>
>    - Two ISIS levels
>    - Two OSPF area
>    - Two Autonomous systems
>
>
>
> Can you help with this section? In SR-MPLS, I am not sure that every node
> SID needs to be leak across boundaries. Only those of ABRs and ASBRs. Am =
I
> missing something?
>
>
>
>
>                                                                          =
   Ron
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> Juniper Business Use Only
>
> *From:* Ron Bonica
> *Sent:* Monday, December 30, 2019 11:35 AM
> *To:* Robert Raszuk <robert@raszuk.net>
> *Cc:* SPRING WG <spring@ietf.org>
> *Subject:* RE: [spring] draft-ietf-spring-srv6-network-programming:
> Relative advantages of SRv6
>
>
>
> Robert,
>
>
>
> I just realized that you are a contributor. So, I will take that as an
> invitation to contribute my two cents.
>
>
>
> Please stand by. It will take an hour or two to craft a well-considered
> response and it may not be ready before I shut down for the holiday.
>
>
>
>
> Happy New Year,
>
>
> Ron
>
>
>
> *From:* Robert Raszuk <robert@raszuk.net>
> *Sent:* Monday, December 30, 2019 8:41 AM
> *To:* Ron Bonica <rbonica@juniper.net>
> *Cc:* SPRING WG <spring@ietf.org>
> *Subject:* Re: [spring] draft-ietf-spring-srv6-network-programming:
> Relative advantages of SRv6
>
>
>
> Ron,
>
>
>
> I beg your pardon, but what are you trying to say?
>
>
>
> Isn't this a WG document now and *any* WG member is fully entitled to
> comment on any question asked or point being raised ? Leave alone formal
> document contributor.
>
>
>
> Are you saying that answers from those listed on top of the draft carries
> more weight ? Is this some new IETF process you are trying to define here=
 ?
>
>
>
> Once document transitions to WG doc status authors who own src are
> becoming just editors with the obligation to incorporate WG suggested
> changes which got approved via rough consensus as judged by chairs. Are y=
ou
> questioning that too ?
>
>
>
> Thx,
> R.
>
>
>
> On Mon, Dec 30, 2019 at 1:19 PM Ron Bonica <rbonica@juniper.net> wrote:
>
> Robert,
>
>
>
> We should probably let the authors decide if that is part of the answer t=
o
> my question.
>
>
>
>
> Ron
>
>
>
> Juniper Business Use Only
>
>

--0000000000007a06ca059b1a7527
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Hi Ron,<div><br></div><div>Three observations:</div><div><=
br></div><div>A)=C2=A0</div><div><br></div><div>I am afraid=C2=A0feature or=
 capability parity between SRv6 and SR-MPLS is far from equal. Sure if you =
consider just TE or VPN applications one could draw such a conclusion. Howe=
ver where I see SRv6 evolving is actually into very flexible=C2=A0operator=
=C2=A0defined embedded functions with dynamic arguments.=C2=A0</div><div><b=
r></div><div>Yes many legacy hardware will have issues to handle such proce=
ssing, but one can hope that this will be smooth evolution where new hardwa=
re will replace incapable units. Those customers who will see a need to dep=
loy such functionality will likely choose proper devices.=C2=A0</div><div><=
br></div><div>While P routers usually=C2=A0will not need such capabilities =
edge routers may do ... really soon :).=C2=A0</div><div><br></div><div>B)=
=C2=A0</div><div><br></div><div>Your claim and calculations that just say f=
or TE over=C2=A08 segments with SRv6 you will need to burn 120 bytes does n=
ot consider uSID proposal. I would call it a bit unfair.=C2=A0</div><div><b=
r></div><div>C)=C2=A0</div><div><br></div><div>&gt; Only those of ABRs and =
ASBRs. Am I missing something?=C2=A0=C2=A0<br></div><div><br></div><div>Yes=
 you are. Think that I want to simply remove LDP and happen to use option C=
 across N ASes. Today with LDP and option C I need to handle 1000s of PEs F=
ECs as top label in my VPN packets is remote PE. So with SR-MPLS I need all=
 of those 1000s of PEs to be seen flat all over my domains or areas.=C2=A0<=
/div><div><br></div><div>I realize that you may recommend to add SR stack t=
o closest ABR/ASBR ... then another label to an other=C2=A0ABR/ASBR while l=
ooks cool on ppt in reality this is operationally broken idea.=C2=A0</div><=
div><br></div><div>When such ABR/ASBR fails I need to fall over to a backup=
 one with local repair at its PHP. When each such label is different this d=
oes not work any more ... I need to go to src PE to adjust the packets.=C2=
=A0</div><div><br></div><div>Then you may say I may use anycast MPLS SID ..=
. well that also looks nice on ppt only. Hint: not all ABRs/ASBRs lead to t=
he same end networks.=C2=A0</div><div><br></div><div>So now=C2=A0please ima=
gine the burden and amount of OPEX required only to keep MPLS transport on =
its life support ... for no good reason as compared with IP transport and b=
asic IP longest match routing.=C2=A0</div><div><br></div><div>Best,</div><d=
iv>R.</div><div><br></div></div><br><div class=3D"gmail_quote"><div dir=3D"=
ltr" class=3D"gmail_attr">On Wed, Jan 1, 2020 at 9:01 PM Ron Bonica &lt;<a =
href=3D"mailto:rbonica@juniper.net">rbonica@juniper.net</a>&gt; wrote:<br><=
/div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;bo=
rder-left:1px solid rgb(204,204,204);padding-left:1ex">





<div lang=3D"EN-US">
<div class=3D"gmail-m_-2669569655067660249WordSection1">
<p class=3D"MsoNormal">Robert,<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">A first attempt to answer the question follows=E2=80=
=A6..<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Generally speaking there is feature parity between S=
R-MPLS and SRv6. For example:<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<ul style=3D"margin-top:0in" type=3D"disc">
<li class=3D"gmail-m_-2669569655067660249MsoListParagraph" style=3D"margin-=
left:0in">Both can steer a packet through an SR path<u></u><u></u></li><li =
class=3D"gmail-m_-2669569655067660249MsoListParagraph" style=3D"margin-left=
:0in">Both support flexalgo<u></u><u></u></li><li class=3D"gmail-m_-2669569=
655067660249MsoListParagraph" style=3D"margin-left:0in">Both support fast r=
eroute using TI-LFA<u></u><u></u></li><li class=3D"gmail-m_-266956965506766=
0249MsoListParagraph" style=3D"margin-left:0in">Both can support service in=
structions<u></u><u></u></li></ul>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">In terms of feature functionality, I can see only on=
e difference between SR-MPLS and SRv6. That is, in SR-MPLS, the SR path is =
encoded in an MPLS label stack and the MPLS label stack is popped away at e=
ach segment endpoint. By contrast,
 in SRv6, the SR path is encoded in an SRH and the SRH is retained until it=
 reaches the SR egress node. So, the SR egress node, in some case, can cons=
truct a reverse path from information contained in the SRH.<u></u><u></u></=
p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">The difference between SR-MPLS and SRv6 isn=E2=80=99=
t so much about feature functionality as it is about where each can be depl=
oyed. For example:<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<ul style=3D"margin-top:0in" type=3D"disc">
<li class=3D"gmail-m_-2669569655067660249MsoListParagraph" style=3D"margin-=
left:0in">SR-MPLS is applicable only in MPLS-capable networks<u></u><u></u>=
</li><li class=3D"gmail-m_-2669569655067660249MsoListParagraph" style=3D"ma=
rgin-left:0in">SRv6 is applicable only in IPv6-capable networks<u></u><u></=
u></li><li class=3D"gmail-m_-2669569655067660249MsoListParagraph" style=3D"=
margin-left:0in">SR-MPLS is applicable in networks where some SR paths cont=
ain a large number of segments. For example, if an SR-path contains 8 segme=
nts, it could be represented by an MPLS label stack
 that contains eight entries (i.e., 32-bytes, total).<u></u><u></u></li><li=
 class=3D"gmail-m_-2669569655067660249MsoListParagraph" style=3D"margin-lef=
t:0in">SRv6 is not applicable in networks where some SR paths contain a lar=
ge number of segments. For example, if an SR-path contains 8 segments, it w=
ould be unreasonable to represent it
 with an SRH that contains 7 SIDS (i.e., 120 bytes, total).<u></u><u></u></=
li></ul>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Note=E2=80=A6=E2=80=A6<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Robert, in your previous email, you suggest SRv6 has=
 a scaling advantage over SR-MPLS in networks where the SR domain spans any=
 of the following:<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<ul style=3D"margin-top:0in" type=3D"disc">
<li class=3D"gmail-m_-2669569655067660249MsoListParagraph" style=3D"margin-=
left:0in">Two ISIS levels<u></u><u></u></li><li class=3D"gmail-m_-266956965=
5067660249MsoListParagraph" style=3D"margin-left:0in">Two OSPF area<u></u><=
u></u></li><li class=3D"gmail-m_-2669569655067660249MsoListParagraph" style=
=3D"margin-left:0in">Two Autonomous systems<u></u><u></u></li></ul>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Can you help with this section? In SR-MPLS, I am not=
 sure that every node SID needs to be leak across boundaries. Only those of=
 ABRs and ASBRs. Am I missing something?<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0Ron<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"gmail-m_-2669569655067660249msipfooter30b3d538" align=3D"center=
" style=3D"margin:0in 0in 0.0001pt;text-align:center">
<span style=3D"font-size:7pt;color:black">Juniper Business Use Only</span><=
u></u><u></u></p>
<div>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(225,225,225);padding:3pt 0in 0in">
<p class=3D"MsoNormal"><b>From:</b> Ron Bonica <br>
<b>Sent:</b> Monday, December 30, 2019 11:35 AM<br>
<b>To:</b> Robert Raszuk &lt;<a href=3D"mailto:robert@raszuk.net" target=3D=
"_blank">robert@raszuk.net</a>&gt;<br>
<b>Cc:</b> SPRING WG &lt;<a href=3D"mailto:spring@ietf.org" target=3D"_blan=
k">spring@ietf.org</a>&gt;<br>
<b>Subject:</b> RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<u></u><u></u></p>
</div>
</div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Robert,<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">I just realized that you are a contributor. So, I wi=
ll take that as an invitation to contribute my two cents.<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Please stand by. It will take an hour or two to craf=
t a well-considered response and it may not be ready before I shut down for=
 the holiday.<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Happy New Year,<u></u><u><=
/u></p>
<p class=3D"MsoNormal">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Ron<u></=
u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><b>From:</b> Robert Raszuk &lt;<a href=3D"mailto:rob=
ert@raszuk.net" target=3D"_blank">robert@raszuk.net</a>&gt;
<br>
<b>Sent:</b> Monday, December 30, 2019 8:41 AM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net" target=3D"=
_blank">rbonica@juniper.net</a>&gt;<br>
<b>Cc:</b> SPRING WG &lt;<a href=3D"mailto:spring@ietf.org" target=3D"_blan=
k">spring@ietf.org</a>&gt;<br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<div>
<div>
<p class=3D"MsoNormal">Ron,<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">I beg=C2=A0your pardon, but what are you trying to=
=C2=A0say?=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Isn&#39;t this a WG document now and *any* WG member=
 is fully entitled to comment=C2=A0on any question asked or point=C2=A0bein=
g raised ? Leave alone formal document contributor.=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Are you saying that answers from those listed on top=
 of the draft carries more weight ? Is this some new IETF process you are t=
rying to define here ?=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Once document transitions to WG doc status authors w=
ho own src are becoming=C2=A0just editors with the=C2=A0obligation to incor=
porate WG suggested changes which got approved via rough consensus as judge=
d by chairs. Are you questioning that too ?=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Thx,<br>
R.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<div>
<p class=3D"MsoNormal">On Mon, Dec 30, 2019 at 1:19 PM Ron Bonica &lt;<a hr=
ef=3D"mailto:rbonica@juniper.net" target=3D"_blank">rbonica@juniper.net</a>=
&gt; wrote:<u></u><u></u></p>
</div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0in 0in 0in 6pt;margin:5pt 0i=
n 5pt 4.8pt">
<div>
<div>
<p class=3D"MsoNormal">Robert,<u></u><u></u></p>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
<p class=3D"MsoNormal">We should probably let the authors decide if that is=
 part of the answer to my question.<u></u><u></u></p>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
<p class=3D"MsoNormal">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Ron<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"gmail-m_-2669569655067660249msipfooter30b3d538" align=3D"center=
" style=3D"margin:0in 0in 0.0001pt;text-align:center">
<span style=3D"font-size:7pt;color:black">Juniper Business Use Only</span><=
u></u><u></u></p>
</div>
</div>
</blockquote>
</div>
</div>
</div>
</div>

</blockquote></div>

--0000000000007a06ca059b1a7527--


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From: Mark Smith <markzzzsmith@gmail.com>
Date: Thu, 2 Jan 2020 11:17:08 +1100
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To: Robert Raszuk <robert@raszuk.net>
Cc: Ron Bonica <rbonica@juniper.net>, SPRING WG <spring@ietf.org>
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Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6
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On Thu, 2 Jan 2020, 08:07 Robert Raszuk, <robert@raszuk.net> wrote:

> Hi Ron,
>
> Three observations:
>
> A)
>
> I am afraid feature or capability parity between SRv6 and SR-MPLS is far
> from equal. Sure if you consider just TE or VPN applications one could dr=
aw
> such a conclusion. However where I see SRv6 evolving is actually into ver=
y
> flexible operator defined embedded functions with dynamic arguments.
>


Can you elaborate on this further, or provide some links to descriptions of
these use cases?

This sounds a bit like an "intelligent network" vision.

That doesn't fit IPv6's architecture, prohibits encryption, and makes
scaling harder. There's a reason that the smart and complex functions are
done in hosts at the edge, and the network does dumb forwarding, and that
is it's much easier to scale.

Does it also mean that SR-MPLS shouldn't be used, or at least its possibly
severe SR limitations should be called out in SR-MPLS specs?



> Yes many legacy hardware will have issues to handle such processing, but
> one can hope that this will be smooth evolution where new hardware will
> replace incapable units. Those customers who will see a need to deploy su=
ch
> functionality will likely choose proper devices.
>
> While P routers usually will not need such capabilities edge routers may
> do ... really soon :).
>
> B)
>
> Your claim and calculations that just say for TE over 8 segments with SRv=
6
> you will need to burn 120 bytes does not consider uSID proposal. I would
> call it a bit unfair.
>
> C)
>
> > Only those of ABRs and ASBRs. Am I missing something?
>
> Yes you are. Think that I want to simply remove LDP and happen to use
> option C across N ASes. Today with LDP and option C I need to handle 1000=
s
> of PEs FECs as top label in my VPN packets is remote PE. So with SR-MPLS =
I
> need all of those 1000s of PEs to be seen flat all over my domains or
> areas.
>
> I realize that you may recommend to add SR stack to closest ABR/ASBR ...
> then another label to an other ABR/ASBR while looks cool on ppt in realit=
y
> this is operationally broken idea.
>
> When such ABR/ASBR fails I need to fall over to a backup one with local
> repair at its PHP. When each such label is different this does not work a=
ny
> more ... I need to go to src PE to adjust the packets.
>
> Then you may say I may use anycast MPLS SID .... well that also looks nic=
e
> on ppt only. Hint: not all ABRs/ASBRs lead to the same end networks.
>
> So now please imagine the burden and amount of OPEX required only to keep
> MPLS transport on its life support ... for no good reason as compared wit=
h
> IP transport and basic IP longest match routing.
>
> Best,
> R.
>
>
> On Wed, Jan 1, 2020 at 9:01 PM Ron Bonica <rbonica@juniper.net> wrote:
>
>> Robert,
>>
>>
>>
>> A first attempt to answer the question follows=E2=80=A6..
>>
>>
>>
>> Generally speaking there is feature parity between SR-MPLS and SRv6. For
>> example:
>>
>>
>>
>>    - Both can steer a packet through an SR path
>>    - Both support flexalgo
>>    - Both support fast reroute using TI-LFA
>>    - Both can support service instructions
>>
>>
>>
>> In terms of feature functionality, I can see only one difference between
>> SR-MPLS and SRv6. That is, in SR-MPLS, the SR path is encoded in an MPLS
>> label stack and the MPLS label stack is popped away at each segment
>> endpoint. By contrast, in SRv6, the SR path is encoded in an SRH and the
>> SRH is retained until it reaches the SR egress node. So, the SR egress
>> node, in some case, can construct a reverse path from information contai=
ned
>> in the SRH.
>>
>>
>>
>> The difference between SR-MPLS and SRv6 isn=E2=80=99t so much about feat=
ure
>> functionality as it is about where each can be deployed. For example:
>>
>>
>>
>>    - SR-MPLS is applicable only in MPLS-capable networks
>>    - SRv6 is applicable only in IPv6-capable networks
>>    - SR-MPLS is applicable in networks where some SR paths contain a
>>    large number of segments. For example, if an SR-path contains 8 segme=
nts,
>>    it could be represented by an MPLS label stack that contains eight en=
tries
>>    (i.e., 32-bytes, total).
>>    - SRv6 is not applicable in networks where some SR paths contain a
>>    large number of segments. For example, if an SR-path contains 8 segme=
nts,
>>    it would be unreasonable to represent it with an SRH that contains 7 =
SIDS
>>    (i.e., 120 bytes, total).
>>
>>
>>
>>
>>
>> Note=E2=80=A6=E2=80=A6
>>
>>
>>
>> Robert, in your previous email, you suggest SRv6 has a scaling advantage
>> over SR-MPLS in networks where the SR domain spans any of the following:
>>
>>
>>
>>    - Two ISIS levels
>>    - Two OSPF area
>>    - Two Autonomous systems
>>
>>
>>
>> Can you help with this section? In SR-MPLS, I am not sure that every nod=
e
>> SID needs to be leak across boundaries. Only those of ABRs and ASBRs. Am=
 I
>> missing something?
>>
>>
>>
>>
>>                                                                         =
    Ron
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> Juniper Business Use Only
>>
>> *From:* Ron Bonica
>> *Sent:* Monday, December 30, 2019 11:35 AM
>> *To:* Robert Raszuk <robert@raszuk.net>
>> *Cc:* SPRING WG <spring@ietf.org>
>> *Subject:* RE: [spring] draft-ietf-spring-srv6-network-programming:
>> Relative advantages of SRv6
>>
>>
>>
>> Robert,
>>
>>
>>
>> I just realized that you are a contributor. So, I will take that as an
>> invitation to contribute my two cents.
>>
>>
>>
>> Please stand by. It will take an hour or two to craft a well-considered
>> response and it may not be ready before I shut down for the holiday.
>>
>>
>>
>>
>> Happy New Year,
>>
>>
>> Ron
>>
>>
>>
>> *From:* Robert Raszuk <robert@raszuk.net>
>> *Sent:* Monday, December 30, 2019 8:41 AM
>> *To:* Ron Bonica <rbonica@juniper.net>
>> *Cc:* SPRING WG <spring@ietf.org>
>> *Subject:* Re: [spring] draft-ietf-spring-srv6-network-programming:
>> Relative advantages of SRv6
>>
>>
>>
>> Ron,
>>
>>
>>
>> I beg your pardon, but what are you trying to say?
>>
>>
>>
>> Isn't this a WG document now and *any* WG member is fully entitled to
>> comment on any question asked or point being raised ? Leave alone formal
>> document contributor.
>>
>>
>>
>> Are you saying that answers from those listed on top of the draft carrie=
s
>> more weight ? Is this some new IETF process you are trying to define her=
e ?
>>
>>
>>
>> Once document transitions to WG doc status authors who own src are
>> becoming just editors with the obligation to incorporate WG suggested
>> changes which got approved via rough consensus as judged by chairs. Are =
you
>> questioning that too ?
>>
>>
>>
>> Thx,
>> R.
>>
>>
>>
>> On Mon, Dec 30, 2019 at 1:19 PM Ron Bonica <rbonica@juniper.net> wrote:
>>
>> Robert,
>>
>>
>>
>> We should probably let the authors decide if that is part of the answer
>> to my question.
>>
>>
>>
>>
>> Ron
>>
>>
>>
>> Juniper Business Use Only
>>
>> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

--000000000000cb7134059b1d1d0c
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"auto"><div><br><br><div class=3D"gmail_quote"><div dir=3D"ltr" =
class=3D"gmail_attr">On Thu, 2 Jan 2020, 08:07 Robert Raszuk, &lt;<a href=
=3D"mailto:robert@raszuk.net" target=3D"_blank" rel=3D"noreferrer">robert@r=
aszuk.net</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=
=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir=
=3D"ltr">Hi Ron,<div><br></div><div>Three observations:</div><div><br></div=
><div>A)=C2=A0</div><div><br></div><div>I am afraid=C2=A0feature or capabil=
ity parity between SRv6 and SR-MPLS is far from equal. Sure if you consider=
 just TE or VPN applications one could draw such a conclusion. However wher=
e I see SRv6 evolving is actually into very flexible=C2=A0operator=C2=A0def=
ined embedded functions with dynamic arguments.=C2=A0</div></div></blockquo=
te></div></div><div dir=3D"auto"><br></div><div dir=3D"auto"><br></div><div=
 dir=3D"auto">Can you elaborate on this further, or provide some links to d=
escriptions of these use cases?</div><div dir=3D"auto"><br></div><div dir=
=3D"auto">This sounds a bit like an &quot;intelligent network&quot; vision.=
</div><div dir=3D"auto"><br></div><div dir=3D"auto">That doesn&#39;t fit IP=
v6&#39;s architecture, prohibits encryption, and makes scaling harder. Ther=
e&#39;s a reason that the smart and complex functions are done in hosts at =
the edge, and the network does dumb forwarding, and that is it&#39;s much e=
asier to scale.</div><div dir=3D"auto"><br></div><div dir=3D"auto">Does it =
also mean that SR-MPLS shouldn&#39;t be used, or at least its possibly seve=
re SR limitations should be called out in SR-MPLS specs?</div><div dir=3D"a=
uto"><br></div><div dir=3D"auto"><br></div><div dir=3D"auto"><div class=3D"=
gmail_quote"><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;b=
order-left:1px #ccc solid;padding-left:1ex"><div dir=3D"ltr"><div><br></div=
><div>Yes many legacy hardware will have issues to handle such processing, =
but one can hope that this will be smooth evolution where new hardware will=
 replace incapable units. Those customers who will see a need to deploy suc=
h functionality will likely choose proper devices.=C2=A0</div><div><br></di=
v><div>While P routers usually=C2=A0will not need such capabilities edge ro=
uters may do ... really soon :).=C2=A0</div><div><br></div><div>B)=C2=A0</d=
iv><div><br></div><div>Your claim and calculations that just say for TE ove=
r=C2=A08 segments with SRv6 you will need to burn 120 bytes does not consid=
er uSID proposal. I would call it a bit unfair.=C2=A0</div><div><br></div><=
div>C)=C2=A0</div><div><br></div><div>&gt; Only those of ABRs and ASBRs. Am=
 I missing something?=C2=A0=C2=A0<br></div><div><br></div><div>Yes you are.=
 Think that I want to simply remove LDP and happen to use option C across N=
 ASes. Today with LDP and option C I need to handle 1000s of PEs FECs as to=
p label in my VPN packets is remote PE. So with SR-MPLS I need all of those=
 1000s of PEs to be seen flat all over my domains or areas.=C2=A0</div><div=
><br></div><div>I realize that you may recommend to add SR stack to closest=
 ABR/ASBR ... then another label to an other=C2=A0ABR/ASBR while looks cool=
 on ppt in reality this is operationally broken idea.=C2=A0</div><div><br><=
/div><div>When such ABR/ASBR fails I need to fall over to a backup one with=
 local repair at its PHP. When each such label is different this does not w=
ork any more ... I need to go to src PE to adjust the packets.=C2=A0</div><=
div><br></div><div>Then you may say I may use anycast MPLS SID .... well th=
at also looks nice on ppt only. Hint: not all ABRs/ASBRs lead to the same e=
nd networks.=C2=A0</div><div><br></div><div>So now=C2=A0please imagine the =
burden and amount of OPEX required only to keep MPLS transport on its life =
support ... for no good reason as compared with IP transport and basic IP l=
ongest match routing.=C2=A0</div><div><br></div><div>Best,</div><div>R.</di=
v><div><br></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" clas=
s=3D"gmail_attr">On Wed, Jan 1, 2020 at 9:01 PM Ron Bonica &lt;<a href=3D"m=
ailto:rbonica@juniper.net" rel=3D"noreferrer noreferrer" target=3D"_blank">=
rbonica@juniper.net</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quot=
e" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204)=
;padding-left:1ex">





<div lang=3D"EN-US">
<div>
<p class=3D"MsoNormal">Robert,<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">A first attempt to answer the question follows=E2=80=
=A6..<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Generally speaking there is feature parity between S=
R-MPLS and SRv6. For example:<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<ul style=3D"margin-top:0in" type=3D"disc">
<li style=3D"margin-left:0in">Both can steer a packet through an SR path<u>=
</u><u></u></li><li style=3D"margin-left:0in">Both support flexalgo<u></u><=
u></u></li><li style=3D"margin-left:0in">Both support fast reroute using TI=
-LFA<u></u><u></u></li><li style=3D"margin-left:0in">Both can support servi=
ce instructions<u></u><u></u></li></ul>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">In terms of feature functionality, I can see only on=
e difference between SR-MPLS and SRv6. That is, in SR-MPLS, the SR path is =
encoded in an MPLS label stack and the MPLS label stack is popped away at e=
ach segment endpoint. By contrast,
 in SRv6, the SR path is encoded in an SRH and the SRH is retained until it=
 reaches the SR egress node. So, the SR egress node, in some case, can cons=
truct a reverse path from information contained in the SRH.<u></u><u></u></=
p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">The difference between SR-MPLS and SRv6 isn=E2=80=99=
t so much about feature functionality as it is about where each can be depl=
oyed. For example:<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<ul style=3D"margin-top:0in" type=3D"disc">
<li style=3D"margin-left:0in">SR-MPLS is applicable only in MPLS-capable ne=
tworks<u></u><u></u></li><li style=3D"margin-left:0in">SRv6 is applicable o=
nly in IPv6-capable networks<u></u><u></u></li><li style=3D"margin-left:0in=
">SR-MPLS is applicable in networks where some SR paths contain a large num=
ber of segments. For example, if an SR-path contains 8 segments, it could b=
e represented by an MPLS label stack
 that contains eight entries (i.e., 32-bytes, total).<u></u><u></u></li><li=
 style=3D"margin-left:0in">SRv6 is not applicable in networks where some SR=
 paths contain a large number of segments. For example, if an SR-path conta=
ins 8 segments, it would be unreasonable to represent it
 with an SRH that contains 7 SIDS (i.e., 120 bytes, total).<u></u><u></u></=
li></ul>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Note=E2=80=A6=E2=80=A6<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Robert, in your previous email, you suggest SRv6 has=
 a scaling advantage over SR-MPLS in networks where the SR domain spans any=
 of the following:<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<ul style=3D"margin-top:0in" type=3D"disc">
<li style=3D"margin-left:0in">Two ISIS levels<u></u><u></u></li><li style=
=3D"margin-left:0in">Two OSPF area<u></u><u></u></li><li style=3D"margin-le=
ft:0in">Two Autonomous systems<u></u><u></u></li></ul>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Can you help with this section? In SR-MPLS, I am not=
 sure that every node SID needs to be leak across boundaries. Only those of=
 ABRs and ASBRs. Am I missing something?<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0Ron<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p align=3D"center" style=3D"margin:0in 0in 0.0001pt;text-align:center">
<span style=3D"font-size:7pt;color:black">Juniper Business Use Only</span><=
u></u><u></u></p>
<div>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(225,225,225);padding:3pt 0in 0in">
<p class=3D"MsoNormal"><b>From:</b> Ron Bonica <br>
<b>Sent:</b> Monday, December 30, 2019 11:35 AM<br>
<b>To:</b> Robert Raszuk &lt;<a href=3D"mailto:robert@raszuk.net" rel=3D"no=
referrer noreferrer" target=3D"_blank">robert@raszuk.net</a>&gt;<br>
<b>Cc:</b> SPRING WG &lt;<a href=3D"mailto:spring@ietf.org" rel=3D"noreferr=
er noreferrer" target=3D"_blank">spring@ietf.org</a>&gt;<br>
<b>Subject:</b> RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<u></u><u></u></p>
</div>
</div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Robert,<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">I just realized that you are a contributor. So, I wi=
ll take that as an invitation to contribute my two cents.<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Please stand by. It will take an hour or two to craf=
t a well-considered response and it may not be ready before I shut down for=
 the holiday.<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Happy New Year,<u></u><u><=
/u></p>
<p class=3D"MsoNormal">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Ron<u></=
u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><b>From:</b> Robert Raszuk &lt;<a href=3D"mailto:rob=
ert@raszuk.net" rel=3D"noreferrer noreferrer" target=3D"_blank">robert@rasz=
uk.net</a>&gt;
<br>
<b>Sent:</b> Monday, December 30, 2019 8:41 AM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net" rel=3D"nor=
eferrer noreferrer" target=3D"_blank">rbonica@juniper.net</a>&gt;<br>
<b>Cc:</b> SPRING WG &lt;<a href=3D"mailto:spring@ietf.org" rel=3D"noreferr=
er noreferrer" target=3D"_blank">spring@ietf.org</a>&gt;<br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<div>
<div>
<p class=3D"MsoNormal">Ron,<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">I beg=C2=A0your pardon, but what are you trying to=
=C2=A0say?=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Isn&#39;t this a WG document now and *any* WG member=
 is fully entitled to comment=C2=A0on any question asked or point=C2=A0bein=
g raised ? Leave alone formal document contributor.=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Are you saying that answers from those listed on top=
 of the draft carries more weight ? Is this some new IETF process you are t=
rying to define here ?=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Once document transitions to WG doc status authors w=
ho own src are becoming=C2=A0just editors with the=C2=A0obligation to incor=
porate WG suggested changes which got approved via rough consensus as judge=
d by chairs. Are you questioning that too ?=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Thx,<br>
R.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<div>
<p class=3D"MsoNormal">On Mon, Dec 30, 2019 at 1:19 PM Ron Bonica &lt;<a hr=
ef=3D"mailto:rbonica@juniper.net" rel=3D"noreferrer noreferrer" target=3D"_=
blank">rbonica@juniper.net</a>&gt; wrote:<u></u><u></u></p>
</div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0in 0in 0in 6pt;margin:5pt 0i=
n 5pt 4.8pt">
<div>
<div>
<p class=3D"MsoNormal">Robert,<u></u><u></u></p>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
<p class=3D"MsoNormal">We should probably let the authors decide if that is=
 part of the answer to my question.<u></u><u></u></p>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
<p class=3D"MsoNormal">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Ron<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p align=3D"center" style=3D"margin:0in 0in 0.0001pt;text-align:center">
<span style=3D"font-size:7pt;color:black">Juniper Business Use Only</span><=
u></u><u></u></p>
</div>
</div>
</blockquote>
</div>
</div>
</div>
</div>

</blockquote></div>
_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" rel=3D"noreferrer noreferrer" target=3D"=
_blank">spring@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer =
noreferrer noreferrer" target=3D"_blank">https://www.ietf.org/mailman/listi=
nfo/spring</a><br>
</blockquote></div></div></div>

--000000000000cb7134059b1d1d0c--


From nobody Wed Jan  1 17:00:24 2020
Return-Path: <robert@raszuk.net>
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From: Robert Raszuk <robert@raszuk.net>
Date: Thu, 2 Jan 2020 02:00:08 +0100
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To: Mark Smith <markzzzsmith@gmail.com>
Cc: Ron Bonica <rbonica@juniper.net>, SPRING WG <spring@ietf.org>
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Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6
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Hi Mark,

I am the last one who would recommend you more state and more intelligence
or even new mapping into the network. Networks should just be dumb and
should be just able to forward IPv4 and IPv6 with proper QoS treatment.

All "extra functionality" is about the edges and service processing nodes.
Hint: take a look at Terastream architecture.

/* Disclaimer: Yes there is overlap of SRv6 in that respect with NSH - but
allow me not to get into this battle field here. I think both will continue
for a while fwd. */

For use case - There is a lot of them which I can see very useful. And
since some of them can be commercial value naturally are not to be
discussed in public. But I will illustrate just one ... Imagine today a
network connecting to some services it offers customers. Those can be IPv4
RFC1918 or IPv6 customers. Well if you do not want to turn each IPv4
customer into separate VPN you need to NAT (some of them may be coming with
the same address space to you). NAT has its own set of issues .. so one
alternative would be to encapsulate all of them into SRv6 and add into SRH
sufficient info about customer ID, function required, etc ... such that
your service can be accomplished. I can not see how to do that with
SR-MPLS.

I think your statement about fit into IPv6 architecture is coming from a
completely different perspective. Pls keep in mind that I am using IPv6 as
an encapsulation so my edge is the actual v6 host just taking a v6 payload.
Not also that those fancy service processing mentioned above Terastream
dpes are also all (at least originally) done by x86 IPv6 service nodes. In
IPv6 terminology those are real v6 hosts.

Ron started this thread trying to prove that SRv6 services can all be done
with SR-MPLS so why do we need SRv6 in the first place. While I am sure
bashing MPLS transport would be fun let's move it to some other forum and
form.

For networks already running MPLS transport and are really happy with it
SR-MPLS can provide few real benefits - one getting rid of LDP. By all
means great move. For those who in addition to some VPN support would also
like to enable some SR-MPLS for TE .. again very simple and incremental
change. Those folks should not hesitate and go for it.

But those who like to enable more services on their networks, those who
have extra spare capacity to accommodate SRv6 encap overhead, and those who
can think outside of their vendor manual - will likely see a benefit to
consider SRv6.

Btw I do think that EH addition to IPv4 is a good thing and SRv4 should be
defined and also progressed in SPRING.

Yes I just barely scratched the surface of the questions you posted. But
again I would like to highlight that the main decision of choice of SR-MPLS
vs SRv6 or maybe even SRv4 (one day) would be mainly dependent on given
network's transport protocol and service needs.

Best regards,
Robert.



> I am afraid feature or capability parity between SRv6 and SR-MPLS is far
>> from equal. Sure if you consider just TE or VPN applications one could draw
>> such a conclusion. However where I see SRv6 evolving is actually into very
>> flexible operator defined embedded functions with dynamic arguments.
>>
>
> Can you elaborate on this further, or provide some links to descriptions
> of these use cases?
>
> This sounds a bit like an "intelligent network" vision.
>
> That doesn't fit IPv6's architecture, prohibits encryption, and makes
> scaling harder. There's a reason that the smart and complex functions are
> done in hosts at the edge, and the network does dumb forwarding, and that
> is it's much easier to scale.
>
> Does it also mean that SR-MPLS shouldn't be used, or at least its possibly
> severe SR limitations should be called out in SR-MPLS specs?
>

--0000000000008b58c1059b1db719
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div class=3D"gmail_quote"><div>Hi=C2=A0Mark,=C2=A0</div><=
div><br></div><div>I am the last one who would recommend you more state and=
 more intelligence or even=C2=A0new mapping into the network. Networks shou=
ld just be dumb and should be just able=C2=A0to forward IPv4 and IPv6 with =
proper QoS treatment.=C2=A0</div><div><br></div><div>All &quot;extra functi=
onality&quot; is about the edges and service processing nodes. Hint: take a=
 look at Terastream architecture.=C2=A0</div><div><br></div><div>/* Disclai=
mer: Yes there is overlap of SRv6 in that respect with NSH - but allow me n=
ot to get into this battle field here. I think both will continue for a whi=
le fwd. */</div><div><br></div><div>For use case - There is a lot of them w=
hich I can see very useful. And since some of them can be commercial value =
naturally are not to be discussed in public. But I will illustrate just one=
 ... Imagine today=C2=A0a network connecting to some services it offers cus=
tomers. Those can be IPv4 RFC1918 or IPv6 customers. Well if you do not wan=
t to turn each IPv4 customer into separate VPN you need to NAT (some of the=
m may be coming=C2=A0with the same address space to you). NAT has its own s=
et of issues .. so one alternative would be to encapsulate all of them into=
 SRv6 and add into SRH sufficient info about customer ID, function required=
, etc ... such that your service can be accomplished. I can not see how to =
do that with SR-MPLS.=C2=A0</div><div><br></div><div>I think your statement=
 about fit into IPv6 architecture is coming from a completely different per=
spective. Pls keep in mind that I am using IPv6 as an encapsulation so my e=
dge is the actual v6 host just taking a v6 payload. Not also that those fan=
cy service processing mentioned above Terastream dpes are also all (at leas=
t originally) done by x86 IPv6 service nodes. In IPv6 terminology those are=
 real v6 hosts.=C2=A0</div><div><br></div><div>Ron started this thread tryi=
ng to prove that SRv6 services can all be done with SR-MPLS so why do we ne=
ed SRv6 in the first place. While I am sure bashing MPLS transport would be=
 fun let&#39;s move it to some other forum and form.=C2=A0</div><div><br></=
div><div>For networks already running MPLS transport and are really happy w=
ith it SR-MPLS can provide few real benefits - one getting rid of LDP. By a=
ll means great move. For those who in addition to some VPN support would al=
so like to enable some SR-MPLS for TE .. again very simple and incremental =
change. Those folks should not hesitate and go for it.=C2=A0</div><div><br>=
</div><div>But those who like to enable more services on their networks, th=
ose who have extra spare capacity to accommodate SRv6 encap overhead, and t=
hose who can think outside of their vendor manual - will likely see a benef=
it to consider SRv6.=C2=A0</div><div><br></div><div>Btw I do think that EH =
addition to IPv4 is a good thing and SRv4 should be defined and also progre=
ssed in SPRING.=C2=A0</div><div><br></div><div>Yes I just barely scratched =
the surface of the questions you posted. But again I would like to highligh=
t that the main decision of choice of SR-MPLS vs SRv6 or maybe even SRv4 (o=
ne day) would be mainly dependent on given network&#39;s transport protocol=
 and service needs.=C2=A0</div><div><br></div><div>Best regards,<br>Robert.=
=C2=A0</div><div><br></div><div>=C2=A0</div><blockquote class=3D"gmail_quot=
e" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204)=
;padding-left:1ex"><div dir=3D"auto"><div><div class=3D"gmail_quote"><block=
quote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1=
px solid rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr"><div>I am afra=
id=C2=A0feature or capability parity between SRv6 and SR-MPLS is far from e=
qual. Sure if you consider just TE or VPN applications one could draw such =
a conclusion. However where I see SRv6 evolving is actually into very flexi=
ble=C2=A0operator=C2=A0defined embedded functions with dynamic arguments.=
=C2=A0</div></div></blockquote></div></div><div dir=3D"auto"><br></div><div=
 dir=3D"auto">Can you elaborate on this further, or provide some links to d=
escriptions of these use cases?</div><div dir=3D"auto"><br></div><div dir=
=3D"auto">This sounds a bit like an &quot;intelligent network&quot; vision.=
</div><div dir=3D"auto"><br></div><div dir=3D"auto">That doesn&#39;t fit IP=
v6&#39;s architecture, prohibits encryption, and makes scaling harder. Ther=
e&#39;s a reason that the smart and complex functions are done in hosts at =
the edge, and the network does dumb forwarding, and that is it&#39;s much e=
asier to scale.</div><div dir=3D"auto"><br></div><div dir=3D"auto">Does it =
also mean that SR-MPLS shouldn&#39;t be used, or at least its possibly seve=
re SR limitations should be called out in SR-MPLS specs?</div></div></block=
quote><div><br></div><div><br></div><div><br></div><div><br></div><div>=C2=
=A0</div></div></div>

--0000000000008b58c1059b1db719--


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To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
Thread-Topic: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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From: Rakesh Gandhi <rgandhi.ietf@gmail.com>
Date: Thu, 2 Jan 2020 14:58:18 -0500
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Subject: Re: [spring] WG adoption request for draft-gandhi-spring-twamp-srpm {WAS: WG status - pending calls
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--000000000000f0bdc3059b2d9dbe
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Hi Chairs, WG,

The draft was presented at the last IETF meeting and there was a good
support in the session for WG adoption. We like to formally request WG
adoption for this draft:

draft-gandhi-spring-twamp-srpm

Thanks,
Rakesh


On Fri, Dec 20, 2019 at 11:58 AM <bruno.decraene@orange.com> wrote:

> Hi SPRING,
>
>
>
> A number of authors have asked for their document to be adopted or last
> called.
>
> Chairs have some backlog on this. The WG has also been pretty busy over
> the last 6 months with a set of subjects triggering many emails and this =
is
> not always the best time to ask for review of additional documents (versu=
s
> short =E2=80=98+1=E2=80=99).
>
> Chairs/WG will work on this calls in 2020. In the meantime, for a better
> transparency, Shuping has been kind enough to track this on the wiki
> https://trac.ietf.org/trac/spring Thank you Shuping.
>
> If your document is missing from the list of pending calls for
> adoption/last call, please send an email to the chairs or to the list, as
> you wish.
>
> Otherwise, your request is been tracked.
>
>
>
> Content of this page is subject to change. In particular, the goal is not
> to duplicate the information already tracked in the ietf datatracker.
> E.g.
> https://datatracker.ietf.org/doc/search?name=3D&sort=3D&activedrafts=3Don=
&by=3Dgroup&group=3Dspring
>
>
>
> I take this opportunity to wish everyone Merry Christmas, an Happy New
> Year and possibly Happy Holidays.
>
> --Bruno
>
>
>
>
>
> _________________________________________________________________________=
________________________________________________
>
> Ce message et ses pieces jointes peuvent contenir des informations confid=
entielles ou privilegiees et ne doivent donc
> pas etre diffuses, exploites ou copies sans autorisation. Si vous avez re=
cu ce message par erreur, veuillez le signaler
> a l'expediteur et le detruire ainsi que les pieces jointes. Les messages =
electroniques etant susceptibles d'alteration,
> Orange decline toute responsabilite si ce message a ete altere, deforme o=
u falsifie. Merci.
>
> This message and its attachments may contain confidential or privileged i=
nformation that may be protected by law;
> they should not be distributed, used or copied without authorisation.
> If you have received this email in error, please notify the sender and de=
lete this message and its attachments.
> As emails may be altered, Orange is not liable for messages that have bee=
n modified, changed or falsified.
> Thank you.
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

--000000000000f0bdc3059b2d9dbe
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div dir=3D"ltr"><div>Hi Chairs, WG,</div><div><br></div><=
div><span style=3D"font-family:arial,sans-serif">The draft was presented at=
 the last IETF meeting and there was a good support in the session for WG a=
doption. We like to formally request WG adoption for this draft:</span></di=
v><div><span style=3D"font-family:arial,sans-serif"></span><span style=3D"f=
ont-family:arial,sans-serif"><br></span></div><div><span style=3D"font-fami=
ly:arial,sans-serif">draft-gandhi-spring-twamp-srpm</span><br><span style=
=3D"font-family:arial,sans-serif"></span></div><div><pre><span style=3D"fon=
t-family:arial,sans-serif">Thanks,<br>Rakesh</span><br><br></pre></div></di=
v><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On F=
ri, Dec 20, 2019 at 11:58 AM &lt;<a href=3D"mailto:bruno.decraene@orange.co=
m">bruno.decraene@orange.com</a>&gt; wrote:<br></div><blockquote class=3D"g=
mail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204=
,204,204);padding-left:1ex">







<div lang=3D"FR">
<div>
<p class=3D"MsoNormal">Hi SPRING,<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">A number of authors have asked =
for their document to be adopted or last called.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Chairs have some backlog on thi=
s. The WG has also been pretty busy over the last 6 months with a set of su=
bjects triggering many emails and this is not always the best time to ask f=
or review
 of additional documents (versus short =E2=80=98+1=E2=80=99).<u></u><u></u>=
</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Chairs/WG will work on this cal=
ls in 2020. In the meantime, for a better transparency, Shuping has been ki=
nd enough to track this on the wiki
<a href=3D"https://trac.ietf.org/trac/spring" target=3D"_blank">https://tra=
c.ietf.org/trac/spring</a> Thank you Shuping.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">If your document is missing fro=
m the list of pending calls for adoption/last call, please send an email to=
 the chairs or to the list, as you wish.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Otherwise, your request is been=
 tracked.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Content of this page is subject=
 to change. In particular, the goal is not to duplicate the information alr=
eady tracked in the
<span>ietf</span> <span>datatracker</span>. E.g. <a href=3D"https://datatra=
cker.ietf.org/doc/search?name=3D&amp;sort=3D&amp;activedrafts=3Don&amp;by=
=3Dgroup&amp;group=3Dspring" target=3D"_blank">
https://datatracker.ietf.org/doc/search?name=3D&amp;sort=3D&amp;activedraft=
s=3Don&amp;by=3Dgroup&amp;group=3Dspring</a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">I take this opportunity to wish=
 everyone Merry Christmas, an Happy New Year and possibly Happy Holidays.<u=
></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">--Bruno<u></u><u></u></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
</div>
<pre>______________________________________________________________________=
___________________________________________________

Ce message et ses pieces jointes peuvent contenir des informations confiden=
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pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler
a l&#39;expediteur et le detruire ainsi que les pieces jointes. Les message=
s electroniques etant susceptibles d&#39;alteration,
Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.

This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;
they should not be distributed, used or copied without authorisation.
If you have received this email in error, please notify the sender and dele=
te this message and its attachments.
As emails may be altered, Orange is not liable for messages that have been =
modified, changed or falsified.
Thank you.
</pre></div>

_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer"=
 target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><br>
</blockquote></div></div>

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From: Ron Bonica <rbonica@juniper.net>
To: Robert Raszuk <robert@raszuk.net>
CC: SPRING WG <spring@ietf.org>
Thread-Topic: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6
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Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6
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Hi Robert,

Three responses:

A)

What prevents SR-MPLS from evolving along the same path as SRv6?

B)

The uSID proposal introduces its own set of deployment issues, which have b=
een discussed in depth on this list as well as on 6man.

C)

Could you be a little more specific about the failure scenario? In your mod=
el, who advertises SR-MPLS anycast SIDs to whom?

                                                                  Happy New=
 Year,
                                                                           =
Ron


From: Robert Raszuk <robert@raszuk.net>
Sent: Wednesday, January 1, 2020 4:07 PM
To: Ron Bonica <rbonica@juniper.net>
Cc: SPRING WG <spring@ietf.org>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Hi Ron,

Three observations:

A)

I am afraid feature or capability parity between SRv6 and SR-MPLS is far fr=
om equal. Sure if you consider just TE or VPN applications one could draw s=
uch a conclusion. However where I see SRv6 evolving is actually into very f=
lexible operator defined embedded functions with dynamic arguments.

Yes many legacy hardware will have issues to handle such processing, but on=
e can hope that this will be smooth evolution where new hardware will repla=
ce incapable units. Those customers who will see a need to deploy such func=
tionality will likely choose proper devices.

While P routers usually will not need such capabilities edge routers may do=
 ... really soon :).

B)

Your claim and calculations that just say for TE over 8 segments with SRv6 =
you will need to burn 120 bytes does not consider uSID proposal. I would ca=
ll it a bit unfair.

C)

> Only those of ABRs and ASBRs. Am I missing something?

Yes you are. Think that I want to simply remove LDP and happen to use optio=
n C across N ASes. Today with LDP and option C I need to handle 1000s of PE=
s FECs as top label in my VPN packets is remote PE. So with SR-MPLS I need =
all of those 1000s of PEs to be seen flat all over my domains or areas.

I realize that you may recommend to add SR stack to closest ABR/ASBR ... th=
en another label to an other ABR/ASBR while looks cool on ppt in reality th=
is is operationally broken idea.

When such ABR/ASBR fails I need to fall over to a backup one with local rep=
air at its PHP. When each such label is different this does not work any mo=
re ... I need to go to src PE to adjust the packets.

Then you may say I may use anycast MPLS SID ... well that also looks nice o=
n ppt only. Hint: not all ABRs/ASBRs lead to the same end networks.

So now please imagine the burden and amount of OPEX required only to keep M=
PLS transport on its life support ... for no good reason as compared with I=
P transport and basic IP longest match routing.

Best,
R.


On Wed, Jan 1, 2020 at 9:01 PM Ron Bonica <rbonica@juniper.net<mailto:rboni=
ca@juniper.net>> wrote:
Robert,

A first attempt to answer the question follows.....

Generally speaking there is feature parity between SR-MPLS and SRv6. For ex=
ample:


  *   Both can steer a packet through an SR path
  *   Both support flexalgo
  *   Both support fast reroute using TI-LFA
  *   Both can support service instructions

In terms of feature functionality, I can see only one difference between SR=
-MPLS and SRv6. That is, in SR-MPLS, the SR path is encoded in an MPLS labe=
l stack and the MPLS label stack is popped away at each segment endpoint. B=
y contrast, in SRv6, the SR path is encoded in an SRH and the SRH is retain=
ed until it reaches the SR egress node. So, the SR egress node, in some cas=
e, can construct a reverse path from information contained in the SRH.

The difference between SR-MPLS and SRv6 isn't so much about feature functio=
nality as it is about where each can be deployed. For example:


  *   SR-MPLS is applicable only in MPLS-capable networks
  *   SRv6 is applicable only in IPv6-capable networks
  *   SR-MPLS is applicable in networks where some SR paths contain a large=
 number of segments. For example, if an SR-path contains 8 segments, it cou=
ld be represented by an MPLS label stack that contains eight entries (i.e.,=
 32-bytes, total).
  *   SRv6 is not applicable in networks where some SR paths contain a larg=
e number of segments. For example, if an SR-path contains 8 segments, it wo=
uld be unreasonable to represent it with an SRH that contains 7 SIDS (i.e.,=
 120 bytes, total).


Note......

Robert, in your previous email, you suggest SRv6 has a scaling advantage ov=
er SR-MPLS in networks where the SR domain spans any of the following:


  *   Two ISIS levels
  *   Two OSPF area
  *   Two Autonomous systems

Can you help with this section? In SR-MPLS, I am not sure that every node S=
ID needs to be leak across boundaries. Only those of ABRs and ASBRs. Am I m=
issing something?

                                                                           =
 Ron








Juniper Business Use Only


Juniper Business Use Only
From: Ron Bonica
Sent: Monday, December 30, 2019 11:35 AM
To: Robert Raszuk <robert@raszuk.net<mailto:robert@raszuk.net>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Robert,

I just realized that you are a contributor. So, I will take that as an invi=
tation to contribute my two cents.

Please stand by. It will take an hour or two to craft a well-considered res=
ponse and it may not be ready before I shut down for the holiday.

                                                                           =
     Happy New Year,
                                                                           =
        Ron

From: Robert Raszuk <robert@raszuk.net<mailto:robert@raszuk.net>>
Sent: Monday, December 30, 2019 8:41 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,

I beg your pardon, but what are you trying to say?

Isn't this a WG document now and *any* WG member is fully entitled to comme=
nt on any question asked or point being raised ? Leave alone formal documen=
t contributor.

Are you saying that answers from those listed on top of the draft carries m=
ore weight ? Is this some new IETF process you are trying to define here ?

Once document transitions to WG doc status authors who own src are becoming=
 just editors with the obligation to incorporate WG suggested changes which=
 got approved via rough consensus as judged by chairs. Are you questioning =
that too ?

Thx,
R.

On Mon, Dec 30, 2019 at 1:19 PM Ron Bonica <rbonica@juniper.net<mailto:rbon=
ica@juniper.net>> wrote:
Robert,

We should probably let the authors decide if that is part of the answer to =
my question.

                                                                           =
  Ron


Juniper Business Use Only

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</head>
<body lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal">Hi Robert,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Three responses:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">A)<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">What prevents SR-MPLS from evolving along the same p=
ath as SRv6?<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">B)<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">The uSID proposal introduces its own set of deployme=
nt issues, which have been discussed in depth on this list as well as on 6m=
an.
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">C)<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Could you be a little more specific about the failur=
e scenario? In your model, who advertises SR-MPLS anycast SIDs to whom?<o:p=
></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Happy New Year,<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><b>From:</b> Robert Raszuk &lt;robert@raszuk.net&gt;=
 <br>
<b>Sent:</b> Wednesday, January 1, 2020 4:07 PM<br>
<b>To:</b> Ron Bonica &lt;rbonica@juniper.net&gt;<br>
<b>Cc:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<p class=3D"MsoNormal">Hi Ron,<o:p></o:p></p>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Three observations:<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">A)&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">I am afraid&nbsp;feature or capability parity betwee=
n SRv6 and SR-MPLS is far from equal. Sure if you consider just TE or VPN a=
pplications one could draw such a conclusion. However where I see SRv6 evol=
ving is actually into very flexible&nbsp;operator&nbsp;defined
 embedded functions with dynamic arguments.&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Yes many legacy hardware will have issues to handle =
such processing, but one can hope that this will be smooth evolution where =
new hardware will replace incapable units. Those customers who will see a n=
eed to deploy such functionality will
 likely choose proper devices.&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">While P routers usually&nbsp;will not need such capa=
bilities edge routers may do ... really soon :).&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">B)&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Your claim and calculations that just say for TE ove=
r&nbsp;8 segments with SRv6 you will need to burn 120 bytes does not consid=
er uSID proposal. I would call it a bit unfair.&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">C)&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">&gt; Only those of ABRs and ASBRs. Am I missing some=
thing?&nbsp;&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Yes you are. Think that I want to simply remove LDP =
and happen to use option C across N ASes. Today with LDP and option C I nee=
d to handle 1000s of PEs FECs as top label in my VPN packets is remote PE. =
So with SR-MPLS I need all of those
 1000s of PEs to be seen flat all over my domains or areas.&nbsp;<o:p></o:p=
></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">I realize that you may recommend to add SR stack to =
closest ABR/ASBR ... then another label to an other&nbsp;ABR/ASBR while loo=
ks cool on ppt in reality this is operationally broken idea.&nbsp;<o:p></o:=
p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">When such ABR/ASBR fails I need to fall over to a ba=
ckup one with local repair at its PHP. When each such label is different th=
is does not work any more ... I need to go to src PE to adjust the packets.=
&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Then you may say I may use anycast MPLS SID ... well=
 that also looks nice on ppt only. Hint: not all ABRs/ASBRs lead to the sam=
e end networks.&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">So now&nbsp;please imagine the burden and amount of =
OPEX required only to keep MPLS transport on its life support ... for no go=
od reason as compared with IP transport and basic IP longest match routing.=
&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Best,<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal">R.<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<div>
<p class=3D"MsoNormal">On Wed, Jan 1, 2020 at 9:01 PM Ron Bonica &lt;<a hre=
f=3D"mailto:rbonica@juniper.net">rbonica@juniper.net</a>&gt; wrote:<o:p></o=
:p></p>
</div>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0i=
n 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-=
bottom:5.0pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Robert,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">A first attempt to answer the question follows&#8230;..<o:p></o:p>=
</p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Generally speaking there is feature parity between SR-MPLS and SRv=
6. For example:<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<ul type=3D"disc">
<li class=3D"gmail-m-2669569655067660249msolistparagraph" style=3D"mso-list=
:l0 level1 lfo3">
Both can steer a packet through an SR path<o:p></o:p></li><li class=3D"gmai=
l-m-2669569655067660249msolistparagraph" style=3D"mso-list:l0 level1 lfo3">
Both support flexalgo<o:p></o:p></li><li class=3D"gmail-m-26695696550676602=
49msolistparagraph" style=3D"mso-list:l0 level1 lfo3">
Both support fast reroute using TI-LFA<o:p></o:p></li><li class=3D"gmail-m-=
2669569655067660249msolistparagraph" style=3D"mso-list:l0 level1 lfo3">
Both can support service instructions<o:p></o:p></li></ul>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">In terms of feature functionality, I can see only one difference b=
etween SR-MPLS and SRv6. That is, in SR-MPLS, the SR path is encoded in an =
MPLS label stack and the MPLS label
 stack is popped away at each segment endpoint. By contrast, in SRv6, the S=
R path is encoded in an SRH and the SRH is retained until it reaches the SR=
 egress node. So, the SR egress node, in some case, can construct a reverse=
 path from information contained
 in the SRH.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">The difference between SR-MPLS and SRv6 isn&#8217;t so much about =
feature functionality as it is about where each can be deployed. For exampl=
e:<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<ul type=3D"disc">
<li class=3D"gmail-m-2669569655067660249msolistparagraph" style=3D"mso-list=
:l4 level1 lfo6">
SR-MPLS is applicable only in MPLS-capable networks<o:p></o:p></li><li clas=
s=3D"gmail-m-2669569655067660249msolistparagraph" style=3D"mso-list:l4 leve=
l1 lfo6">
SRv6 is applicable only in IPv6-capable networks<o:p></o:p></li><li class=
=3D"gmail-m-2669569655067660249msolistparagraph" style=3D"mso-list:l4 level=
1 lfo6">
SR-MPLS is applicable in networks where some SR paths contain a large numbe=
r of segments. For example, if an SR-path contains 8 segments, it could be =
represented by an MPLS label stack that contains eight entries (i.e., 32-by=
tes, total).<o:p></o:p></li><li class=3D"gmail-m-2669569655067660249msolist=
paragraph" style=3D"mso-list:l4 level1 lfo6">
SRv6 is not applicable in networks where some SR paths contain a large numb=
er of segments. For example, if an SR-path contains 8 segments, it would be=
 unreasonable to represent it with an SRH that contains 7 SIDS (i.e., 120 b=
ytes, total).<o:p></o:p></li></ul>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Note&#8230;&#8230;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Robert, in your previous email, you suggest SRv6 has a scaling adv=
antage over SR-MPLS in networks where the SR domain spans any of the follow=
ing:<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<ul type=3D"disc">
<li class=3D"gmail-m-2669569655067660249msolistparagraph" style=3D"mso-list=
:l3 level1 lfo9">
Two ISIS levels<o:p></o:p></li><li class=3D"gmail-m-2669569655067660249msol=
istparagraph" style=3D"mso-list:l3 level1 lfo9">
Two OSPF area<o:p></o:p></li><li class=3D"gmail-m-2669569655067660249msolis=
tparagraph" style=3D"mso-list:l3 level1 lfo9">
Two Autonomous systems<o:p></o:p></li></ul>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Can you help with this section? In SR-MPLS, I am not sure that eve=
ry node SID needs to be leak across boundaries. Only those of ABRs and ASBR=
s. Am I missing something?<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"gmail-m-2669569655067660249msipfooter30b3d538" align=3D"center"=
 style=3D"margin:0in;margin-bottom:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0in;margin=
-bottom:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><b>From:</b> Ron Bonica
<br>
<b>Sent:</b> Monday, December 30, 2019 11:35 AM<br>
<b>To:</b> Robert Raszuk &lt;<a href=3D"mailto:robert@raszuk.net" target=3D=
"_blank">robert@raszuk.net</a>&gt;<br>
<b>Cc:</b> SPRING WG &lt;<a href=3D"mailto:spring@ietf.org" target=3D"_blan=
k">spring@ietf.org</a>&gt;<br>
<b>Subject:</b> RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Robert,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">I just realized that you are a contributor. So, I will take that a=
s an invitation to contribute my two cents.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Please stand by. It will take an hour or two to craft a well-consi=
dered response and it may not be ready before I shut down for the holiday.<=
o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Happy New Year,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><b>From:</b> Robert Raszuk &lt;<a href=3D"mailto:robert@raszuk.net=
" target=3D"_blank">robert@raszuk.net</a>&gt;
<br>
<b>Sent:</b> Monday, December 30, 2019 8:41 AM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net" target=3D"=
_blank">rbonica@juniper.net</a>&gt;<br>
<b>Cc:</b> SPRING WG &lt;<a href=3D"mailto:spring@ietf.org" target=3D"_blan=
k">spring@ietf.org</a>&gt;<br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Ron,<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">I beg&nbsp;your pardon, but what are you trying to&nbsp;say?&nbsp;=
<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Isn't this a WG document now and *any* WG member is fully entitled=
 to comment&nbsp;on any question asked or point&nbsp;being raised ? Leave a=
lone formal document contributor.&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Are you saying that answers from those listed on top of the draft =
carries more weight ? Is this some new IETF process you are trying to defin=
e here ?&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Once document transitions to WG doc status authors who own src are=
 becoming&nbsp;just editors with the&nbsp;obligation to incorporate WG sugg=
ested changes which got approved via rough consensus
 as judged by chairs. Are you questioning that too ?&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Thx,<br>
R.<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
</div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">On Mon, Dec 30, 2019 at 1:19 PM Ron Bonica &lt;<a href=3D"mailto:r=
bonica@juniper.net" target=3D"_blank">rbonica@juniper.net</a>&gt; wrote:<o:=
p></o:p></p>
</div>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0i=
n 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-=
bottom:5.0pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Robert,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">We should probably let the authors decide if that is part of the a=
nswer to my question.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"gmail-m-2669569655067660249msipfooter30b3d538" align=3D"center"=
 style=3D"margin:0in;margin-bottom:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
</div>
</div>
</blockquote>
</div>
</div>
</div>
</div>
</blockquote>
</div>
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From: "Pengshuping (Peng Shuping)" <pengshuping@huawei.com>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
Thread-Topic: draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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Subject: Re: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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Hi Chairs, all,

I support this early allocation.

I agree that the criteria for the early allocation of this code point are m=
et, and there are already multiple deployments worldwide.
https://tools.ietf.org/html/draft-matsushima-spring-srv6-deployment-status-=
04
https://tools.ietf.org/html/draft-tian-spring-srv6-deployment-consideration=
-00

Best regards,
Shuping


From: spring [mailto:spring-bounces@ietf.org] On Behalf Of bruno.decraene@o=
range.com
Sent: Friday, December 20, 2019 12:54 AM
To: SPRING WG <spring@ietf.org>
Subject: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early=
 Allocation Call


Hi SPRING WG,



This begins a 2 week Early Allocation call for a "Ethernet" value from the =
"Protocol Numbers" registry.

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-9.1

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-5.3

https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml



In parallel of the Working Group Last Call which is currently running, the =
authors are requesting for early code point allocation from IANA as impleme=
ntations are under way.



The criteria for early allocation are:

   a.  The code points must be from a space designated as "RFC

       Required", "IETF Review", or "Standards Action".  Additionally,

       requests for early assignment of code points from a

       "Specification Required" registry are allowed if the

       specification will be published as an RFC.



   b.  The format, semantics, processing, and other rules related to

       handling the protocol entities defined by the code points

       (henceforth called "specifications") must be adequately described

       in an Internet-Draft.



   c.  The specifications of these code points must be stable; i.e., if

       there is a change, implementations based on the earlier and later

       specifications must be seamlessly interoperable.



   d.  The Working Group chairs and Area Directors (ADs) judge that

       there is sufficient interest in the community for early (pre-RFC)

       implementation and deployment, or that failure to make an early

       allocation might lead to contention for the code point in the

       field.

https://tools.ietf.org/html/rfc7120#section-2



I believe the above conditions are met. (minus the AD judgement which is fu=
rther down in the process)



As a reminder, this topic has mainly been discussed following IETF 105 (Mon=
tr=E9al) both during the meeting and on the mailing list.

During IETF 106 it has been discussed in the IntArea WG. https://datatracke=
r.ietf.org/meeting/106/proceedings#intarea



Note that this code point is not to be specific to SRv6. Depending on AD gu=
idance, this specific code point even be moved from draft-ietf-spring-srv6-=
network-programming into a specific 1 page draft.



If you support early adoption,  please include "support" along with any com=
ments about the draft's technical solution.



If you do not support early allocation, please include "no support" in your=
 email and indicate why.



Thank you,

--Bruno


___________________________________________________________________________=
______________________________________________



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Orange decline toute responsabilite si ce message a ete altere, deforme ou =
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If you have received this email in error, please notify the sender and dele=
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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D;mso-fareast-language:ZH-CN">Hi Chairs, all,
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D;mso-fareast-language:ZH-CN">I support this early allocation.&nbsp;
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D;mso-fareast-language:ZH-CN">I agree that the criteria for the earl=
y allocation of this code point are met, and there are already multiple dep=
loyments worldwide.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"https://tools.ietf.o=
rg/html/draft-matsushima-spring-srv6-deployment-status-04">https://tools.ie=
tf.org/html/draft-matsushima-spring-srv6-deployment-status-04</a><o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"https://tools.ietf.o=
rg/html/draft-tian-spring-srv6-deployment-consideration-00">https://tools.i=
etf.org/html/draft-tian-spring-srv6-deployment-consideration-00</a><o:p></o=
:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D;mso-fareast-language:ZH-CN">Best regards,
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D;mso-fareast-language:ZH-CN">Shuping<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"mso-fareast-languag=
e:ZH-CN">From:</span></b><span lang=3D"EN-US" style=3D"mso-fareast-language=
:ZH-CN"> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>bruno.decraene@orange.com<br>
<b>Sent:</b> Friday, December 20, 2019 12:54 AM<br>
<b>To:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Subject:</b> [spring] draft-ietf-spring-srv6-network-programming - 2 wee=
k Early Allocation Call<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<pre><span lang=3D"EN-US">Hi SPRING WG,<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">This begins a 2 week Early Allocation call for a =
&#8220;Ethernet&#8221; value from the &quot;Protocol Numbers&quot; registry=
.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-07#section-9.1">https://tools.ietf.org/htm=
l/draft-ietf-spring-srv6-network-programming-07#section-9.1</a><o:p></o:p><=
/span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-07#section-5.3">https://tools.ietf.org/htm=
l/draft-ietf-spring-srv6-network-programming-07#section-5.3</a><o:p></o:p><=
/span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://www.iana.org/assignments/proto=
col-numbers/protocol-numbers.xhtml">https://www.iana.org/assignments/protoc=
ol-numbers/protocol-numbers.xhtml</a><o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">In parallel of the Working Group Last Call which =
is currently running, the authors are requesting for early code point alloc=
ation from IANA as implementations are under way.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">The criteria for early allocation are:<o:p></o:p>=
</span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp; a.&nbsp; The code points must be fro=
m a space designated as &quot;RFC<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Required&quo=
t;, &quot;IETF Review&quot;, or &quot;Standards Action&quot;.&nbsp; Additio=
nally,<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; requests for=
 early assignment of code points from a<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &quot;Specif=
ication Required&quot; registry are allowed if the<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; specificatio=
n will be published as an RFC.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp; b.&nbsp; The format, semantics, proc=
essing, and other rules related to<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; handling the=
 protocol entities defined by the code points<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (henceforth =
called &quot;specifications&quot;) must be adequately described<o:p></o:p><=
/span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;in an Intern=
et-Draft.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp; c.&nbsp; The specifications of these=
 code points must be stable; i.e., if<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; there is a c=
hange, implementations based on the earlier and later<o:p></o:p></span></pr=
e>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; specificatio=
ns must be seamlessly interoperable.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp; d.&nbsp; The Working Group chairs an=
d Area Directors (ADs) judge that<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; there is suf=
ficient interest in the community for early (pre-RFC)<o:p></o:p></span></pr=
e>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; implementati=
on and deployment, or that failure to make an early<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; allocation m=
ight lead to contention for the code point in the<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;field.<o:p><=
/o:p></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/rfc7120#se=
ction-2">https://tools.ietf.org/html/rfc7120#section-2</a><o:p></o:p></span=
></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">I believe the above conditions are met. (minus th=
e AD judgement which is further down in the process)<o:p></o:p></span></pre=
>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">As a reminder, this topic has mainly been discuss=
ed following IETF 105 (Montr=E9al) both during the meeting and on the maili=
ng list.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">During IETF 106 it has been discussed in the IntA=
rea WG. <a href=3D"https://datatracker.ietf.org/meeting/106/proceedings#int=
area">https://datatracker.ietf.org/meeting/106/proceedings#intarea</a><o:p>=
</o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">Note that this code point is not to be specific t=
o SRv6. Depending on AD guidance, this specific code point even be moved fr=
om draft-ietf-spring-srv6-network-programming into a specific 1 page draft.=
<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">If you support early adoption, &nbsp;please inclu=
de &#8220;support&#8221; along with any comments about the draft&#8217;s te=
chnical solution.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">If you do not support early allocation, please in=
clude &#8220;no support&#8221; in your email and indicate why.<o:p></o:p></=
span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">Thank you,<o:p></o:p></span></pre>
<pre><span lang=3D"FR">--Bruno<o:p></o:p></span></pre>
<p class=3D"MsoNormal"><span lang=3D"FR"><o:p>&nbsp;</o:p></span></p>
<pre><span lang=3D"FR">____________________________________________________=
_____________________________________________________________________<o:p><=
/o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">Ce message et ses pieces jointes peuvent contenir de=
s informations confidentielles ou privilegiees et ne doivent donc<o:p></o:p=
></span></pre>
<pre><span lang=3D"FR">pas etre diffuses, exploites ou copies sans autorisa=
tion. Si vous avez recu ce message par erreur, veuillez le signaler<o:p></o=
:p></span></pre>
<pre><span lang=3D"FR">a l'expediteur et le detruire ainsi que les pieces j=
ointes. Les messages electroniques etant susceptibles d'alteration,<o:p></o=
:p></span></pre>
<pre><span lang=3D"FR">Orange decline toute responsabilite si ce message a =
ete altere, deforme ou falsifie. Merci.<o:p></o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">This message and its attachments may contain confide=
ntial or privileged information that may be protected by law;<o:p></o:p></s=
pan></pre>
<pre><span lang=3D"FR">they should not be distributed, used or copied witho=
ut authorisation.<o:p></o:p></span></pre>
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From: "Xiejingrong (Jingrong)" <xiejingrong@huawei.com>
To: bruno.decraene <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
Thread-Topic: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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Support.

thanks,
Jingrong

From:bruno.decraene <bruno.decraene@orange.com>
To:SPRING WG <spring@ietf.org>
Date:2019-12-20 00:54:44
Subject:[spring] draft-ietf-spring-srv6-network-programming - 2 week Early =
Allocation Call


Hi SPRING WG,



This begins a 2 week Early Allocation call for a =93Ethernet=94 value from =
the "Protocol Numbers" registry.

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-9.1

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-5.3

https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml



In parallel of the Working Group Last Call which is currently running, the =
authors are requesting for early code point allocation from IANA as impleme=
ntations are under way.



The criteria for early allocation are:

   a.  The code points must be from a space designated as "RFC

       Required", "IETF Review", or "Standards Action".  Additionally,

       requests for early assignment of code points from a

       "Specification Required" registry are allowed if the

       specification will be published as an RFC.



   b.  The format, semantics, processing, and other rules related to

       handling the protocol entities defined by the code points

       (henceforth called "specifications") must be adequately described

       in an Internet-Draft.



   c.  The specifications of these code points must be stable; i.e., if

       there is a change, implementations based on the earlier and later

       specifications must be seamlessly interoperable.



   d.  The Working Group chairs and Area Directors (ADs) judge that

       there is sufficient interest in the community for early (pre-RFC)

       implementation and deployment, or that failure to make an early

       allocation might lead to contention for the code point in the

       field.

https://tools.ietf.org/html/rfc7120#section-2



I believe the above conditions are met. (minus the AD judgement which is fu=
rther down in the process)



As a reminder, this topic has mainly been discussed following IETF 105 (Mon=
tr=E9al) both during the meeting and on the mailing list.

During IETF 106 it has been discussed in the IntArea WG. https://datatracke=
r.ietf.org/meeting/106/proceedings#intarea



Note that this code point is not to be specific to SRv6. Depending on AD gu=
idance, this specific code point even be moved from draft-ietf-spring-srv6-=
network-programming into a specific 1 page draft.



If you support early adoption,  please include =93support=94 along with any=
 comments about the draft=92s technical solution.



If you do not support early allocation, please include =93no support=94 in =
your email and indicate why.



Thank you,

--Bruno


___________________________________________________________________________=
______________________________________________

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<div>Support. </div>
<div></div>
<div>
<p dir=3D"ltr">thanks,<br>
Jingrong</p>
</div>
<div name=3D"AnyOffice-Background-Image" style=3D"border-top:1px solid #B5C=
4DF; padding:8px">
<div style=3D"word-break:break-all"><b>From:</b>bruno.decraene &lt;bruno.de=
craene@orange.com&gt;</div>
<div style=3D"word-break:break-all"><b>To:</b>SPRING WG &lt;spring@ietf.org=
&gt;</div>
<div style=3D"word-break:break-all"><b>Date:</b>2019-12-20 00:54:44</div>
<div style=3D"word-break:break-all"><b>Subject:</b>[spring] draft-ietf-spri=
ng-srv6-network-programming - 2 week Early Allocation Call</div>
<div><br>
</div>
</div>
<div>
<div class=3D"WordSection1">
<pre><span lang=3D"EN-US" style=3D"">Hi SPRING WG,</span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">This begins a 2 week Early Allocation =
call for a =93Ethernet=94 value from the &quot;Protocol Numbers&quot; regis=
try.</span></pre>
<pre><span lang=3D"EN-US" style=3D""><a href=3D"https://tools.ietf.org/html=
/draft-ietf-spring-srv6-network-programming-07#section-9.1">https://tools.i=
etf.org/html/draft-ietf-spring-srv6-network-programming-07#section-9.1</a><=
/span></pre>
<pre><span lang=3D"EN-US" style=3D""><a href=3D"https://tools.ietf.org/html=
/draft-ietf-spring-srv6-network-programming-07#section-5.3">https://tools.i=
etf.org/html/draft-ietf-spring-srv6-network-programming-07#section-5.3</a><=
/span></pre>
<pre><span lang=3D"EN-US" style=3D""><a href=3D"https://www.iana.org/assign=
ments/protocol-numbers/protocol-numbers.xhtml">https://www.iana.org/assignm=
ents/protocol-numbers/protocol-numbers.xhtml</a></span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">In parallel of the Working Group Last =
Call which is currently running, the authors are requesting for early code =
point allocation from IANA as implementations are under way.</span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">The criteria for early allocation are:=
</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp; </span>a=
.<span style=3D"">&nbsp; </span>The code points must be from a space design=
ated as &quot;RFC</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>Required&quot;, &quot;IETF Review&quot;, or &quot;St=
andards Action&quot;.<span style=3D"">&nbsp; </span>Additionally,</span></p=
re>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>requests for early assignment of code points from a<=
/span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>&quot;Specification Required&quot; registry are allo=
wed if the</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>specification will be published as an RFC.</span></p=
re>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp; </span>b=
.<span style=3D"">&nbsp; </span>The format, semantics, processing, and othe=
r rules related to</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>handling the protocol entities defined by the code p=
oints</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>(henceforth called &quot;specifications&quot;) must =
be adequately described</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>in an Internet-Draft.</span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp; </span>c=
.<span style=3D"">&nbsp; </span>The specifications of these code points mus=
t be stable; i.e., if</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>there is a change, implementations based on the earl=
ier and later</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>specifications must be seamlessly interoperable.</sp=
an></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp; </span>d=
.<span style=3D"">&nbsp; </span>The Working Group chairs and Area Directors=
 (ADs) judge that</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>there is sufficient interest in the community for ea=
rly (pre-RFC)</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>implementation and deployment, or that failure to ma=
ke an early</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>allocation might lead to contention for the code poi=
nt in the</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>field.</span></pre>
<pre><span lang=3D"EN-US" style=3D""><a href=3D"https://tools.ietf.org/html=
/rfc7120#section-2">https://tools.ietf.org/html/rfc7120#section-2</a></span=
></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">I believe the above conditions are met=
. (minus the AD judgement which is further down in the process)</span></pre=
>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">As a reminder, this topic has mainly b=
een discussed following IETF 105 (Montr=E9al) both during the meeting and o=
n the mailing list.</span></pre>
<pre><span lang=3D"EN-US" style=3D"">During IETF 106 it has been discussed =
in the <span class=3D"SpellE">IntArea</span> WG. <a href=3D"https://datatra=
cker.ietf.org/meeting/106/proceedings#intarea">https://datatracker.ietf.org=
/meeting/106/proceedings#intarea</a></span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">Note that this code point is not to be=
 specific to SRv6. Depending on AD guidance, this specific code point even =
be moved from draft-ietf-spring-srv6-network-programming into a specific 1 =
page draft.</span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">If you support early adoption, &nbsp;p=
lease include =93support=94 along with any comments about the draft=92s tec=
hnical solution.</span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">If you do not support early allocation=
, please include =93no support=94 in your email and indicate why.</span></p=
re>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span class=3D"SpellE">Thank</span> <span class=3D"SpellE">you</span>,=
</pre>
<pre>--Bruno</pre>
<p class=3D"MsoNormal">&nbsp;</p>
</div>
<pre>______________________________________________________________________=
___________________________________________________

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pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler
a l'expediteur et le detruire ainsi que les pieces jointes. Les messages el=
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Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.

This message and its attachments may contain confidential or privileged inf=
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If you have received this email in error, please notify the sender and dele=
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/T2dYTbNBfeOhYdGnQPdE2EpR-gM>
Subject: Re: [spring] IPR poll for draft-ietf-spring-srv6-network-programming
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I=92m not aware of any undisclosed IPR related to this document.

thanks,
Arthi Ayyangar

________________________________
From: bruno.decraene@orange.com <bruno.decraene@orange.com>
Sent: Thursday, December 5, 2019 8:50 AM
To: 'SPRING WG List' <spring@ietf.org>; draft-ietf-spring-srv6-network-prog=
ramming <draft-ietf-spring-srv6-network-programming@ietf.org>
Subject: IPR poll for draft-ietf-spring-srv6-network-programming

Hi SPRING WG,

In parallel to the WGLC for draft-ietf-spring-srv6-network-programming, we =
would like to poll for IPR.

If you are aware of IPR that applies to draft-ietf-spring-srv6-network-prog=
ramming [1] please respond to this email. If you are aware of IPR, please i=
ndicate whether it has been
disclosed in accordance with IETF IPR rules (RFCs 3979, 4879, 3669 and 5378=
 provide more details).

If you are an *author or contributor* please respond to this email regardle=
ss of whether or not you're aware of any IPR.

This document will not advance until IPR confirmations have been received f=
rom all authors and contributors.

Thank you,
Bruno

[1] https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-=
05


___________________________________________________________________________=
______________________________________________

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<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3DWindows-1=
252">
<style type=3D"text/css" style=3D"display:none;"> P {margin-top:0;margin-bo=
ttom:0;} </style>
</head>
<body dir=3D"ltr">
<div style=3D"font-family: Calibri, Arial, Helvetica, sans-serif; font-size=
: 12pt; color: rgb(0, 0, 0);">
<span style=3D"caret-color: rgb(32, 31, 30); color: rgb(32, 31, 30); font-f=
amily: Calibri, Helvetica, sans-serif; font-size: 11pt; background-color: r=
gb(255, 255, 255); display: inline !important; line-height: normal;">I=92m =
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 to this document.</span></div>
<div style=3D"font-family: Calibri, Arial, Helvetica, sans-serif; font-size=
: 12pt; color: rgb(0, 0, 0);">
<br>
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<div style=3D"font-family: Calibri, Arial, Helvetica, sans-serif; font-size=
: 12pt; color: rgb(0, 0, 0);">
thanks,</div>
<div style=3D"font-family: Calibri, Arial, Helvetica, sans-serif; font-size=
: 12pt; color: rgb(0, 0, 0);">
<span style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 11pt=
; line-height: normal;">Arthi Ayyangar</span></div>
<div>
<div id=3D"appendonsend"></div>
<div style=3D"font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12p=
t; color:rgb(0,0,0)">
<span style=3D"font-family: Calibri, Helvetica, sans-serif;"></span><br>
</div>
<span style=3D"font-family: Calibri, Helvetica, sans-serif;"></span>
<hr tabindex=3D"-1" style=3D"display:inline-block; width:98%">
<div id=3D"divRplyFwdMsg" dir=3D"ltr"><font face=3D"Calibri, sans-serif" co=
lor=3D"#000000" style=3D"font-size:11pt"><b>From:</b> bruno.decraene@orange=
.com &lt;bruno.decraene@orange.com&gt;<br>
<b>Sent:</b> Thursday, December 5, 2019 8:50 AM<br>
<b>To:</b> 'SPRING WG List' &lt;spring@ietf.org&gt;; draft-ietf-spring-srv6=
-network-programming &lt;draft-ietf-spring-srv6-network-programming@ietf.or=
g&gt;<br>
<b>Subject:</b> IPR poll for draft-ietf-spring-srv6-network-programming</fo=
nt>
<div>&nbsp;</div>
</div>
<div class=3D"BodyFragment"><font size=3D"2"><span style=3D"font-size:11pt"=
>
<div class=3D"PlainText">Hi SPRING WG,<br>
<br>
In parallel to the WGLC for draft-ietf-spring-srv6-network-programming, we =
would like to poll for IPR.<br>
<br>
If you are aware of IPR that applies to draft-ietf-spring-srv6-network-prog=
ramming [1] please respond to this email. If you are aware of IPR, please i=
ndicate whether it has been<br>
disclosed in accordance with IETF IPR rules (RFCs 3979, 4879, 3669 and 5378=
 provide more details).<br>
<br>
If you are an *author or contributor* please respond to this email regardle=
ss of whether or not you're aware of any IPR.
<br>
<br>
This document will not advance until IPR confirmations have been received f=
rom all authors and contributors.<br>
<br>
Thank you,<br>
Bruno<br>
<br>
[1] <a href=3D"https://tools.ietf.org/html/draft-ietf-spring-srv6-network-p=
rogramming-05">
https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-05</=
a><br>
<br>
<br>
___________________________________________________________________________=
______________________________________________<br>
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From: Zhuangshunwan <zhuangshunwan@huawei.com>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
Thread-Topic: draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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Subject: Re: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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I support this early allocation.

Thanks,
Shunwan

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of bruno.decraene@o=
range.com
Sent: Friday, December 20, 2019 12:54 AM
To: SPRING WG <spring@ietf.org>
Subject: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early=
 Allocation Call


Hi SPRING WG,



This begins a 2 week Early Allocation call for a "Ethernet" value from the =
"Protocol Numbers" registry.

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-9.1

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-5.3

https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml



In parallel of the Working Group Last Call which is currently running, the =
authors are requesting for early code point allocation from IANA as impleme=
ntations are under way.



The criteria for early allocation are:

   a.  The code points must be from a space designated as "RFC

       Required", "IETF Review", or "Standards Action".  Additionally,

       requests for early assignment of code points from a

       "Specification Required" registry are allowed if the

       specification will be published as an RFC.



   b.  The format, semantics, processing, and other rules related to

       handling the protocol entities defined by the code points

       (henceforth called "specifications") must be adequately described

       in an Internet-Draft.



   c.  The specifications of these code points must be stable; i.e., if

       there is a change, implementations based on the earlier and later

       specifications must be seamlessly interoperable.



   d.  The Working Group chairs and Area Directors (ADs) judge that

       there is sufficient interest in the community for early (pre-RFC)

       implementation and deployment, or that failure to make an early

       allocation might lead to contention for the code point in the

       field.

https://tools.ietf.org/html/rfc7120#section-2



I believe the above conditions are met. (minus the AD judgement which is fu=
rther down in the process)



As a reminder, this topic has mainly been discussed following IETF 105 (Mon=
tr=E9al) both during the meeting and on the mailing list.

During IETF 106 it has been discussed in the IntArea WG. https://datatracke=
r.ietf.org/meeting/106/proceedings#intarea



Note that this code point is not to be specific to SRv6. Depending on AD gu=
idance, this specific code point even be moved from draft-ietf-spring-srv6-=
network-programming into a specific 1 page draft.



If you support early adoption,  please include "support" along with any com=
ments about the draft's technical solution.



If you do not support early allocation, please include "no support" in your=
 email and indicate why.



Thank you,

--Bruno


___________________________________________________________________________=
______________________________________________



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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:#1F497D;mso-fa=
reast-language:ZH-CN">I support this early allocation.&nbsp;
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:#1F497D;mso-fa=
reast-language:ZH-CN"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D;mso-fareast-language:ZH=
-CN">Thanks,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D;mso-fareast-language:ZH=
-CN">Shunwan<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D;mso-fareast-language:ZH=
-CN"><o:p>&nbsp;</o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span style=3D"mso-fareast-language:ZH-CN">From:<=
/span></b><span style=3D"mso-fareast-language:ZH-CN"> spring [mailto:spring=
-bounces@ietf.org]
<b>On Behalf Of </b>bruno.decraene@orange.com<br>
<b>Sent:</b> Friday, December 20, 2019 12:54 AM<br>
<b>To:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Subject:</b> [spring] draft-ietf-spring-srv6-network-programming - 2 wee=
k Early Allocation Call<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<pre>Hi SPRING WG,<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>This begins a 2 week Early Allocation call for a &#8220;Ethernet&#8221=
; value from the &quot;Protocol Numbers&quot; registry.<o:p></o:p></pre>
<pre><a href=3D"https://tools.ietf.org/html/draft-ietf-spring-srv6-network-=
programming-07#section-9.1">https://tools.ietf.org/html/draft-ietf-spring-s=
rv6-network-programming-07#section-9.1</a><o:p></o:p></pre>
<pre><a href=3D"https://tools.ietf.org/html/draft-ietf-spring-srv6-network-=
programming-07#section-5.3">https://tools.ietf.org/html/draft-ietf-spring-s=
rv6-network-programming-07#section-5.3</a><o:p></o:p></pre>
<pre><a href=3D"https://www.iana.org/assignments/protocol-numbers/protocol-=
numbers.xhtml">https://www.iana.org/assignments/protocol-numbers/protocol-n=
umbers.xhtml</a><o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>In parallel of the Working Group Last Call which is currently running,=
 the authors are requesting for early code point allocation from IANA as im=
plementations are under way.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>The criteria for early allocation are:<o:p></o:p></pre>
<pre>&nbsp;&nbsp; a.&nbsp; The code points must be from a space designated =
as &quot;RFC<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Required&quot;, &quot;IETF Review=
&quot;, or &quot;Standards Action&quot;.&nbsp; Additionally,<o:p></o:p></pr=
e>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; requests for early assignment of =
code points from a<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &quot;Specification Required&quot=
; registry are allowed if the<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; specification will be published a=
s an RFC.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>&nbsp;&nbsp; b.&nbsp; The format, semantics, processing, and other rul=
es related to<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; handling the protocol entities de=
fined by the code points<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (henceforth called &quot;specific=
ations&quot;) must be adequately described<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in an Internet-Draft.<o:p></o:p><=
/pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>&nbsp;&nbsp; c.&nbsp; The specifications of these code points must be =
stable; i.e., if<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; there is a change, implementation=
s based on the earlier and later<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; specifications must be seamlessly=
 interoperable.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>&nbsp;&nbsp; d.&nbsp; The Working Group chairs and Area Directors (ADs=
) judge that<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; there is sufficient interest in t=
he community for early (pre-RFC)<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; implementation and deployment, or=
 that failure to make an early<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; allocation might lead to contenti=
on for the code point in the<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; field.<o:p></o:p></pre>
<pre><a href=3D"https://tools.ietf.org/html/rfc7120#section-2">https://tool=
s.ietf.org/html/rfc7120#section-2</a><o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>I believe the above conditions are met. (minus the AD judgement which =
is further down in the process)<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>As a reminder, this topic has mainly been discussed following IETF 105=
 (Montr=E9al) both during the meeting and on the mailing list.<o:p></o:p></=
pre>
<pre>During IETF 106 it has been discussed in the IntArea WG. <a href=3D"ht=
tps://datatracker.ietf.org/meeting/106/proceedings#intarea">https://datatra=
cker.ietf.org/meeting/106/proceedings#intarea</a><o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>Note that this code point is not to be specific to SRv6. Depending on =
AD guidance, this specific code point even be moved from draft-ietf-spring-=
srv6-network-programming into a specific 1 page draft.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>If you support early adoption, &nbsp;please include &#8220;support&#82=
21; along with any comments about the draft&#8217;s technical solution.<o:p=
></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>If you do not support early allocation, please include &#8220;no suppo=
rt&#8221; in your email and indicate why.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre><span lang=3D"FR">Thank you,<o:p></o:p></span></pre>
<pre><span lang=3D"FR">--Bruno<o:p></o:p></span></pre>
<p class=3D"MsoNormal"><span lang=3D"FR"><o:p>&nbsp;</o:p></span></p>
<pre><span lang=3D"FR">____________________________________________________=
_____________________________________________________________________<o:p><=
/o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">Ce message et ses pieces jointes peuvent contenir de=
s informations confidentielles ou privilegiees et ne doivent donc<o:p></o:p=
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<pre><span lang=3D"FR">pas etre diffuses, exploites ou copies sans autorisa=
tion. Si vous avez recu ce message par erreur, veuillez le signaler<o:p></o=
:p></span></pre>
<pre><span lang=3D"FR">a l'expediteur et le detruire ainsi que les pieces j=
ointes. Les messages electroniques etant susceptibles d'alteration,<o:p></o=
:p></span></pre>
<pre><span lang=3D"FR">Orange decline toute responsabilite si ce message a =
ete altere, deforme ou falsifie. Merci.<o:p></o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">This message and its attachments may contain confide=
ntial or privileged information that may be protected by law;<o:p></o:p></s=
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<pre><span lang=3D"FR">they should not be distributed, used or copied witho=
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<pre><span lang=3D"FR">If you have received this email in error, please not=
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<pre><span lang=3D"FR">Thank you.<o:p></o:p></span></pre>
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Thread-Topic: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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Subject: Re: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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From: "Francois Clad (fclad)" <fclad@cisco.com>
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
CC: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
Thread-Topic: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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Date: Fri, 3 Jan 2020 05:38:01 +0000
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From: Gyan Mishra <hayabusagsm@gmail.com>
Date: Fri, 3 Jan 2020 02:18:12 -0500
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Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6
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Chiming in on SR-MPLS and SRv6 feature parity discussion.

SRv6 and SR-MPLS serve as future MPLS replacement options for operators.
The architecture of both technologies are completely different as to how
they  operate.

>From a timeline historical perspective we had atm and frame relay followed
by MPLS and now            SR-MPLS and final end state SRv6

Both SR-MPLS and SRv6 replace the outermost header for SRv6 is now an IPv6
outer header encapsulation and with SR-MPLS it=E2=80=99s reuses the same to=
pmost 4
byte label in the label stack that sits between the L2 and L3 header.


SR-MPLS reused the MPLS forwarding plane and is an IPv4 LFIB label binding
forwarding plane for the node SID FEC destination.

Both SR-MPLS and SRv6 eliminate state from each node along a service chain
path and all state created on demand and maintained by the ingress source
PE origin point within the SR domain.

SRv6 uses an IPv6 forwarding plane and requires all nodes in the SRv6
domain to be SRv6 aware.  SRv6 for L3 VPN migration has a concept called
=E2=80=9Cbest effort=E2=80=9D L3 VPN where the egress PE signals the L3 VPN=
 services SID
directly to the ingress PE thus not requiring intermediate P routers to be
SRv6 aware.

SR-MPLS reuses the MPLS data plane so requires it to be intact even when
ldp is removed from the core.
Due to MPLS forwarding plane remaining intact this does incur additional
Opex.

SRv6 eliminates the need for MPLS data plane since it used IPv6 data plane
for transport.

Both SRV6 and SR-MPLS both have the same node SID which is the egress PE
FEC destination for binding.  Both SRv6 and SR-MPLS have a prefix SID which
is the connected interfaces on each SR node that is adversed into the IGP.

How they differ vastly in how traffic steering is accomplished.

SR-MPLS utilizes the adj-sid for SR-TE ERO explicit path traffic steering.
SR-TE policy is required for label stacking and cSPF constraint based
dynamic path only has one adj-sid label where explicit path had an adj-sid
per hop.

Both SR-MPLS and SRv6 can have centralized controller based model,
distributed model or hybrid for control plane SID istantiation.

SRv6 can provide traffic steering natively by the source node without
requiring extra TE policy as with SR-MPLS requires SR-TE for dynamic cSPF
or explicit paths.

Both SR-MPLS and SRv6 provide 50ms fast reroute link and node protection
pre-programmed backup path to the merge point PQ space node via TI-LFA.


SRv6 utilizes SRv6 programming End.x for xconnext processing and End.T for
traffic for hop by hop traffic steering.

Both SRV6 and SR-MPLS require SR IGP & BGP extensions for centralized
distributed and hybrid control planes to distribute SID TLVs.

Both SR-MPLS and SRv6 have IGP topology algorithm per service chain to
provide latency or bandwidth or other constraint based cSPF algorithm.

Each SR node along the path for both SR-MPLS and SRv6 per SR IGP extensions
has the option to use strict SPF using  traffic steering policy or use
default SPF algorithm.

SR-MPLS requires Binding SID at Ingress PE with SR-TE policy.

SRv6 only requires binding SID for inter domain stitching of service chains
steered between domains.

Both SR-MPLS and SRv6 inter as options a b c ab that exist today with MPLS
can be reused with SR-MPLS.  With SRV6 the options can all be used in a
slightly modified fashion with MPLS forwarding removed since their is not a
MPLS dataplane. The vpnv4 vpnv6 peering for opt b remains the same between
ASBRs and opt C between the RRs with next-hop-unchanged.  Opt A is
identical since it=E2=80=99s a back to back VRF PE-CE and opt AB hybrid as =
well
remains the same excluding MPLS forwarding.

There are similarities as far as the BGP overlay services for customer L3
VPNs as all the features BGP AFI/SAFI vpnv4 vpnv6 IPv4 IPv6 & MVPN can be
reused over both SRv6 and SR-MPLS. Also Next Gen L2 vpn services EVPN can
be reused over SRv6 and SR-MPLS.

For operators that have been using MPLS for decades SR-MPLS is an easy
migration option.  This allows for elimination of MPLS ldp state and as
Robert mentioned Opex savings.

I think the eventual direction of all operators will be to migrate to
SR-MPLS and then down the road migrate to SRv6 as a separate phase once the
core is dual stacked.

One way to think of the evolution is eventually as the operators migrate
their core to support dual stack since ldp supports both IPv4 and IPv6 ;
that would be a stepping stone to prep to migrate from SR-MPLS to SRV6.

For Green and Brown field deployments SRv6 is an attractive option for
operators.

One major use case and driver for SRv6 is that since it uses the IPv6
data-plane and for best effort L3 vpn ONLY  the PEs are required to be SRV6
aware.  This has tremendous benefit as the SRV6 can be used as a ubiquitous
use case Swiss Army knife over the internet between carriers as well as
within enterprises independent of the traditional MPLS only replacement.


Happy New Year!!

Gyan

On Wed, Jan 1, 2020 at 8:00 PM Robert Raszuk <robert@raszuk.net> wrote:

> Hi Mark,
>
> I am the last one who would recommend you more state and more intelligenc=
e
> or even new mapping into the network. Networks should just be dumb and
> should be just able to forward IPv4 and IPv6 with proper QoS treatment.
>
> All "extra functionality" is about the edges and service processing nodes=
.
> Hint: take a look at Terastream architecture.
>
> /* Disclaimer: Yes there is overlap of SRv6 in that respect with NSH - bu=
t
> allow me not to get into this battle field here. I think both will contin=
ue
> for a while fwd. */
>
> For use case - There is a lot of them which I can see very useful. And
> since some of them can be commercial value naturally are not to be
> discussed in public. But I will illustrate just one ... Imagine today a
> network connecting to some services it offers customers. Those can be IPv=
4
> RFC1918 or IPv6 customers. Well if you do not want to turn each IPv4
> customer into separate VPN you need to NAT (some of them may be coming wi=
th
> the same address space to you). NAT has its own set of issues .. so one
> alternative would be to encapsulate all of them into SRv6 and add into SR=
H
> sufficient info about customer ID, function required, etc ... such that
> your service can be accomplished. I can not see how to do that with
> SR-MPLS.
>
> I think your statement about fit into IPv6 architecture is coming from a
> completely different perspective. Pls keep in mind that I am using IPv6 a=
s
> an encapsulation so my edge is the actual v6 host just taking a v6 payloa=
d.
> Not also that those fancy service processing mentioned above Terastream
> dpes are also all (at least originally) done by x86 IPv6 service nodes. I=
n
> IPv6 terminology those are real v6 hosts.
>
> Ron started this thread trying to prove that SRv6 services can all be don=
e
> with SR-MPLS so why do we need SRv6 in the first place. While I am sure
> bashing MPLS transport would be fun let's move it to some other forum and
> form.
>
> For networks already running MPLS transport and are really happy with it
> SR-MPLS can provide few real benefits - one getting rid of LDP. By all
> means great move. For those who in addition to some VPN support would als=
o
> like to enable some SR-MPLS for TE .. again very simple and incremental
> change. Those folks should not hesitate and go for it.
>
> But those who like to enable more services on their networks, those who
> have extra spare capacity to accommodate SRv6 encap overhead, and those w=
ho
> can think outside of their vendor manual - will likely see a benefit to
> consider SRv6.
>
> Btw I do think that EH addition to IPv4 is a good thing and SRv4 should b=
e
> defined and also progressed in SPRING.
>
> Yes I just barely scratched the surface of the questions you posted. But
> again I would like to highlight that the main decision of choice of SR-MP=
LS
> vs SRv6 or maybe even SRv4 (one day) would be mainly dependent on given
> network's transport protocol and service needs.
>
> Best regards,
> Robert.
>
>
>
>> I am afraid feature or capability parity between SRv6 and SR-MPLS is far
>>> from equal. Sure if you consider just TE or VPN applications one could =
draw
>>> such a conclusion. However where I see SRv6 evolving is actually into v=
ery
>>> flexible operator defined embedded functions with dynamic arguments.
>>>
>>
>> Can you elaborate on this further, or provide some links to descriptions
>> of these use cases?
>>
>> This sounds a bit like an "intelligent network" vision.
>>
>> That doesn't fit IPv6's architecture, prohibits encryption, and makes
>> scaling harder. There's a reason that the smart and complex functions ar=
e
>> done in hosts at the edge, and the network does dumb forwarding, and tha=
t
>> is it's much easier to scale.
>>
>> Does it also mean that SR-MPLS shouldn't be used, or at least its
>> possibly severe SR limitations should be called out in SR-MPLS specs?
>>
>
>
>
>
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>
--=20

Gyan S. Mishra

IT Network Engineering & Technology

Verizon Communications Inc. (VZ)

13101 Columbia Pike FDC1 3rd Floor

Silver Spring, MD 20904

United States

Phone: 301 502-1347

Email: gyan.s.mishra@verizon.com

www.linkedin.com/in/networking-technologies-consultant

--0000000000006b840f059b371ddc
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<div><div dir=3D"auto">Chiming in on SR-MPLS and SRv6 feature parity discus=
sion.</div></div><div dir=3D"auto"><br></div><div dir=3D"auto">SRv6 and SR-=
MPLS serve as future MPLS replacement options for operators. =C2=A0 The arc=
hitecture of both technologies are completely different as to how they =C2=
=A0operate.</div><div dir=3D"auto"><br></div><div dir=3D"auto">From a timel=
ine historical perspective we had atm and frame relay followed by MPLS and =
now =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0SR-MPLS and final end state SR=
v6</div><div dir=3D"auto"><br></div><div dir=3D"auto">Both SR-MPLS and SRv6=
 replace the outermost header for SRv6 is now an IPv6 outer header encapsul=
ation and with SR-MPLS it=E2=80=99s reuses the same topmost 4 byte label in=
 the label stack that sits between the L2 and L3 header.</div><div dir=3D"a=
uto"><br></div><div dir=3D"auto"><br></div><div dir=3D"auto">SR-MPLS reused=
 the MPLS forwarding plane and is an IPv4 LFIB label binding forwarding pla=
ne for the node SID FEC destination.=C2=A0</div><div dir=3D"auto"><br></div=
><div dir=3D"auto">Both SR-MPLS and SRv6 eliminate state from each node alo=
ng a service chain path and all state created on demand and maintained by t=
he ingress source PE origin point within the SR domain.</div><div dir=3D"au=
to"><br></div><div dir=3D"auto">SRv6 uses an IPv6 forwarding plane and requ=
ires all nodes in the SRv6 domain to be SRv6 aware.=C2=A0 SRv6 for L3 VPN m=
igration has a concept called =E2=80=9Cbest effort=E2=80=9D L3 VPN where th=
e egress PE signals the L3 VPN services SID directly to the ingress PE thus=
 not requiring intermediate P routers to be SRv6 aware.</div><div dir=3D"au=
to"><br></div><div dir=3D"auto">SR-MPLS reuses the MPLS data plane so requi=
res it to be intact even when ldp is removed from the core.=C2=A0</div><div=
 dir=3D"auto">Due to MPLS forwarding plane remaining intact this does incur=
 additional Opex.</div><div dir=3D"auto"><br></div><div dir=3D"auto">SRv6 e=
liminates the need for MPLS data plane since it used IPv6 data plane for tr=
ansport.</div><div dir=3D"auto"><br></div><div dir=3D"auto">Both SRV6 and S=
R-MPLS both have the same node SID which is the egress PE FEC destination f=
or binding.=C2=A0 Both SRv6 and SR-MPLS have a prefix SID which is the conn=
ected interfaces on each SR node that is adversed into the IGP. =C2=A0</div=
><div dir=3D"auto"><br></div><div dir=3D"auto">How they differ vastly in ho=
w traffic steering is accomplished.=C2=A0</div><div dir=3D"auto"><br></div>=
<div dir=3D"auto">SR-MPLS utilizes the adj-sid for SR-TE ERO explicit path =
traffic steering.=C2=A0 SR-TE policy is required for label stacking and cSP=
F constraint based dynamic path only has one adj-sid label where explicit p=
ath had an adj-sid per hop.</div><div dir=3D"auto"><br></div><div dir=3D"au=
to">Both SR-MPLS and SRv6 can have centralized controller based model, dist=
ributed model or hybrid for control plane SID istantiation.</div><div dir=
=3D"auto"><br></div><div dir=3D"auto">SRv6 can provide traffic steering nat=
ively by the source node without requiring extra TE policy as with SR-MPLS =
requires SR-TE for dynamic cSPF or explicit paths.</div><div dir=3D"auto"><=
br></div><div dir=3D"auto">Both SR-MPLS and SRv6 provide 50ms fast reroute =
link and node protection pre-programmed backup path to the merge point PQ s=
pace node via TI-LFA.</div><div dir=3D"auto"><br></div><div dir=3D"auto"><b=
r></div><div dir=3D"auto">SRv6 utilizes SRv6 programming End.x for xconnext=
 processing and End.T for traffic for hop by hop traffic steering.</div><di=
v dir=3D"auto"><br></div><div dir=3D"auto">Both SRV6 and SR-MPLS require SR=
 IGP &amp; BGP extensions for centralized distributed and hybrid control pl=
anes to distribute SID TLVs.</div><div dir=3D"auto"><br></div><div dir=3D"a=
uto">Both SR-MPLS and SRv6 have IGP topology algorithm per service chain to=
 provide latency or bandwidth or other constraint based cSPF algorithm.</di=
v><div dir=3D"auto"><br></div><div dir=3D"auto">Each SR node along the path=
 for both SR-MPLS and SRv6 per SR IGP extensions has the option to use stri=
ct SPF using =C2=A0traffic steering policy or use default SPF algorithm.</d=
iv><div dir=3D"auto"><br></div><div dir=3D"auto">SR-MPLS requires Binding S=
ID at Ingress PE with SR-TE policy.</div><div dir=3D"auto"><br></div><div d=
ir=3D"auto">SRv6 only requires binding SID for inter domain stitching of se=
rvice chains steered between domains.</div><div dir=3D"auto"><br></div><div=
 dir=3D"auto">Both SR-MPLS and SRv6 inter as options a b c ab that exist to=
day with MPLS can be reused with SR-MPLS.=C2=A0 With SRV6 the options can a=
ll be used in a slightly modified fashion with MPLS forwarding removed sinc=
e their is not a MPLS dataplane. The vpnv4 vpnv6 peering for opt b remains =
the same between ASBRs and opt C between the RRs with next-hop-unchanged.=
=C2=A0 Opt A is identical since it=E2=80=99s a back to back VRF PE-CE and o=
pt AB hybrid as well remains the same excluding MPLS forwarding.</div><div =
dir=3D"auto"><br></div><div dir=3D"auto">There are similarities as far as t=
he BGP overlay services for customer L3 VPNs as all the features BGP AFI/SA=
FI vpnv4 vpnv6 IPv4 IPv6 &amp; MVPN can be reused over both SRv6 and SR-MPL=
S. Also Next Gen L2 vpn services EVPN can be reused over SRv6 and SR-MPLS.<=
/div><div dir=3D"auto"><br></div><div dir=3D"auto">For operators that have =
been using MPLS for decades SR-MPLS is an easy migration option.=C2=A0 This=
 allows for elimination of MPLS ldp state and as Robert mentioned Opex savi=
ngs.</div><div dir=3D"auto"><br></div><div dir=3D"auto">I think the eventua=
l direction of all operators will be to migrate to SR-MPLS and then down th=
e road migrate to SRv6 as a separate phase once the core is dual stacked.</=
div><div dir=3D"auto"><br></div><div dir=3D"auto">One way to think of the e=
volution is eventually as the operators migrate their core to support dual =
stack since ldp supports both IPv4 and IPv6 ; that would be a stepping ston=
e to prep to migrate from SR-MPLS to SRV6.</div><div dir=3D"auto"><br></div=
><div dir=3D"auto">For Green and Brown field deployments SRv6 is an attract=
ive option for operators.</div><div dir=3D"auto"><br></div><div dir=3D"auto=
">One major use case and driver for SRv6 is that since it uses the IPv6 dat=
a-plane and for best effort L3 vpn ONLY =C2=A0the PEs are required to be SR=
V6 aware.=C2=A0 This has tremendous benefit as the SRV6 can be used as a ub=
iquitous use case Swiss Army knife over the internet between carriers as we=
ll as within enterprises independent of the traditional MPLS only replaceme=
nt. =C2=A0</div><div dir=3D"auto"><br></div><div dir=3D"auto"><br></div><di=
v dir=3D"auto">Happy=C2=A0New Year!!</div><div dir=3D"auto"><br></div><div =
dir=3D"auto">Gyan</div><div><br><div class=3D"gmail_quote"><div dir=3D"ltr"=
 class=3D"gmail_attr">On Wed, Jan 1, 2020 at 8:00 PM Robert Raszuk &lt;<a h=
ref=3D"mailto:robert@raszuk.net">robert@raszuk.net</a>&gt; wrote:<br></div>=
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><div dir=3D"ltr"><div class=3D"gmail_quote">=
<div>Hi=C2=A0Mark,=C2=A0</div><div><br></div><div>I am the last one who wou=
ld recommend you more state and more intelligence or even=C2=A0new mapping =
into the network. Networks should just be dumb and should be just able=C2=
=A0to forward IPv4 and IPv6 with proper QoS treatment.=C2=A0</div><div><br>=
</div><div>All &quot;extra functionality&quot; is about the edges and servi=
ce processing nodes. Hint: take a look at Terastream architecture.=C2=A0</d=
iv><div><br></div><div>/* Disclaimer: Yes there is overlap of SRv6 in that =
respect with NSH - but allow me not to get into this battle field here. I t=
hink both will continue for a while fwd. */</div><div><br></div><div>For us=
e case - There is a lot of them which I can see very useful. And since some=
 of them can be commercial value naturally are not to be discussed in publi=
c. But I will illustrate just one ... Imagine today=C2=A0a network connecti=
ng to some services it offers customers. Those can be IPv4 RFC1918 or IPv6 =
customers. Well if you do not want to turn each IPv4 customer into separate=
 VPN you need to NAT (some of them may be coming=C2=A0with the same address=
 space to you). NAT has its own set of issues .. so one alternative would b=
e to encapsulate all of them into SRv6 and add into SRH sufficient info abo=
ut customer ID, function required, etc ... such that your service can be ac=
complished. I can not see how to do that with SR-MPLS.=C2=A0</div><div><br>=
</div><div>I think your statement about fit into IPv6 architecture is comin=
g from a completely different perspective. Pls keep in mind that I am using=
 IPv6 as an encapsulation so my edge is the actual v6 host just taking a v6=
 payload. Not also that those fancy service processing mentioned above Tera=
stream dpes are also all (at least originally) done by x86 IPv6 service nod=
es. In IPv6 terminology those are real v6 hosts.=C2=A0</div><div><br></div>=
<div>Ron started this thread trying to prove that SRv6 services can all be =
done with SR-MPLS so why do we need SRv6 in the first place. While I am sur=
e bashing MPLS transport would be fun let&#39;s move it to some other forum=
 and form.=C2=A0</div><div><br></div><div>For networks already running MPLS=
 transport and are really happy with it SR-MPLS can provide few real benefi=
ts - one getting rid of LDP. By all means great move. For those who in addi=
tion to some VPN support would also like to enable some SR-MPLS for TE .. a=
gain very simple and incremental change. Those folks should not hesitate an=
d go for it.=C2=A0</div><div><br></div><div>But those who like to enable mo=
re services on their networks, those who have extra spare capacity to accom=
modate SRv6 encap overhead, and those who can think outside of their vendor=
 manual - will likely see a benefit to consider SRv6.=C2=A0</div><div><br><=
/div><div>Btw I do think that EH addition to IPv4 is a good thing and SRv4 =
should be defined and also progressed in SPRING.=C2=A0</div><div><br></div>=
<div>Yes I just barely scratched the surface of the questions you posted. B=
ut again I would like to highlight that the main decision of choice of SR-M=
PLS vs SRv6 or maybe even SRv4 (one day) would be mainly dependent on given=
 network&#39;s transport protocol and service needs.=C2=A0</div><div><br></=
div><div>Best regards,<br>Robert.=C2=A0</div></div></div><div dir=3D"ltr"><=
div class=3D"gmail_quote"><div><br></div><div>=C2=A0</div><blockquote class=
=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rg=
b(204,204,204);padding-left:1ex"><div dir=3D"auto"><div><div class=3D"gmail=
_quote"><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex=
;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr">=
<div>I am afraid=C2=A0feature or capability parity between SRv6 and SR-MPLS=
 is far from equal. Sure if you consider just TE or VPN applications one co=
uld draw such a conclusion. However where I see SRv6 evolving is actually i=
nto very flexible=C2=A0operator=C2=A0defined embedded functions with dynami=
c arguments.=C2=A0</div></div></blockquote></div></div><div dir=3D"auto"><b=
r></div><div dir=3D"auto">Can you elaborate on this further, or provide som=
e links to descriptions of these use cases?</div><div dir=3D"auto"><br></di=
v><div dir=3D"auto">This sounds a bit like an &quot;intelligent network&quo=
t; vision.</div><div dir=3D"auto"><br></div><div dir=3D"auto">That doesn&#3=
9;t fit IPv6&#39;s architecture, prohibits encryption, and makes scaling ha=
rder. There&#39;s a reason that the smart and complex functions are done in=
 hosts at the edge, and the network does dumb forwarding, and that is it&#3=
9;s much easier to scale.</div><div dir=3D"auto"><br></div><div dir=3D"auto=
">Does it also mean that SR-MPLS shouldn&#39;t be used, or at least its pos=
sibly severe SR limitations should be called out in SR-MPLS specs?</div></d=
iv></blockquote><div><br></div><div><br></div><div><br></div><div><br></div=
><div>=C2=A0</div></div></div>
_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer"=
 target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><br>
</blockquote></div></div>-- <br><div dir=3D"ltr" class=3D"gmail_signature" =
data-smartmail=3D"gmail_signature"><div dir=3D"ltr"><div><div dir=3D"ltr"><=
div dir=3D"ltr"><div><p class=3D"MsoNormal"><span style=3D"font-family:Cali=
bri,sans-serif;color:rgb(80,0,80);background-image:initial;background-posit=
ion:initial;background-repeat:initial">Gyan S. Mishra</span><span style=3D"=
color:rgb(80,0,80);background-image:initial;background-position:initial;bac=
kground-repeat:initial"><span></span></span></p><p class=3D"MsoNormal"><spa=
n style=3D"font-family:Calibri,sans-serif;color:rgb(80,0,80);background-ima=
ge:initial;background-position:initial;background-repeat:initial">IT Networ=
k Engineering &amp;
Technology=C2=A0</span><span style=3D"color:rgb(80,0,80);background-image:i=
nitial;background-position:initial;background-repeat:initial"><span></span>=
</span></p><p class=3D"MsoNormal"><span style=3D"font-family:Calibri,sans-s=
erif;color:rgb(80,0,80);background-image:initial;background-position:initia=
l;background-repeat:initial">Verizon
Communications=C2=A0Inc. (VZ)</span><span style=3D"color:rgb(80,0,80);backg=
round-image:initial;background-position:initial;background-repeat:initial">=
<span></span></span></p><p class=3D"MsoNormal"><span style=3D"font-family:C=
alibri,sans-serif;color:rgb(80,0,80);background-image:initial;background-po=
sition:initial;background-repeat:initial">13101 Columbia Pike FDC1 3rd
Floor</span><span style=3D"color:rgb(80,0,80);background-image:initial;back=
ground-position:initial;background-repeat:initial"><span></span></span></p>=
<p class=3D"MsoNormal"><span style=3D"font-family:Calibri,sans-serif;color:=
rgb(80,0,80);background-image:initial;background-position:initial;backgroun=
d-repeat:initial">Silver Spring, MD 20904</span><span style=3D"color:rgb(80=
,0,80);background-image:initial;background-position:initial;background-repe=
at:initial"><span></span></span></p><p class=3D"MsoNormal"><span style=3D"f=
ont-family:Calibri,sans-serif;color:rgb(80,0,80);background-image:initial;b=
ackground-position:initial;background-repeat:initial">United States</span><=
span style=3D"color:rgb(80,0,80);background-image:initial;background-positi=
on:initial;background-repeat:initial"><span></span></span></p><p class=3D"M=
soNormal" style=3D"background-image:initial;background-position:initial;bac=
kground-repeat:initial"><span style=3D"font-family:Calibri,sans-serif;color=
:rgb(80,0,80)">Phone:=C2=A0301 502-1347</span><span></span></p><p class=3D"=
MsoNormal" style=3D"background-image:initial;background-position:initial;ba=
ckground-repeat:initial"><span style=3D"font-family:Calibri,sans-serif;colo=
r:rgb(80,0,80)">Email:=C2=A0<a href=3D"mailto:gyan.s.mishra@verizon.com" ta=
rget=3D"_blank"><span style=3D"color:rgb(17,85,204)">gyan.s.mishra@verizon.=
com</span></a></span><span></span></p><p class=3D"MsoNormal" style=3D"margi=
n:0in 0in 0.0001pt;background-image:initial;background-position:initial;bac=
kground-repeat:initial;font-size:12pt;font-family:&quot;Times New Roman&quo=
t;,serif">















</p><p class=3D"MsoNormal" style=3D"background-image:initial;background-pos=
ition:initial;background-repeat:initial"><span><span style=3D"font-family:&=
quot;Segoe UI&quot;,sans-serif;color:black;border:1pt none windowtext;paddi=
ng:0in;background-image:initial;background-position:initial;background-repe=
at:initial"><a href=3D"http://www.linkedin.com/in/networking-technologies-c=
onsultant" target=3D"_blank">www.linkedin.com/in/networking-technologies-co=
nsultant</a></span></span><span><span style=3D"font-family:&quot;Segoe UI&q=
uot;,sans-serif;border:1pt none windowtext;padding:0in;background-image:ini=
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--_000_5A5B4DE12C0DAC44AF501CD9A2B01A8D935CFA10DGGEMM532MBXchi_
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<div style=3D"direction: ltr;font-family: Tahoma;color: #000000;font-size: =
10pt;">
<p>I support this early allocation.</p>
<div style=3D"FONT-SIZE: 16px; FONT-FAMILY: Times New Roman; COLOR: #000000=
">
<div>
<div class=3D"WordSection1">
<p class=3D"MsoNormal">&nbsp;</p>
<p class=3D"MsoNormal">&nbsp;</p>
<div>
<p class=3D"MsoNormal">Best Regards,</p>
<p class=3D"MsoNormal">Zhenbin (Robin)</p>
<p class=3D"MsoNormal">&nbsp;</p>
<p class=3D"MsoNormal">&nbsp;</p>
</div>
<p class=3D"MsoNormal">&nbsp;</p>
<div style=3D"BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; BOR=
DER-BOTTOM: medium none; PADDING-BOTTOM: 0in; PADDING-TOP: 3pt; PADDING-LEF=
T: 0in; BORDER-LEFT: medium none; PADDING-RIGHT: 0in">
<p class=3D"MsoNormal"><b><span style=3D"FONT-SIZE: 12pt; COLOR: black">Fro=
m: </span>
</b><span style=3D"FONT-SIZE: 12pt; COLOR: black">spring &lt;spring-bounces=
@ietf.org&gt; on behalf of &quot;bruno.decraene@orange.com&quot; &lt;bruno.=
decraene@orange.com&gt;<br>
<b>Date: </b>Thursday, December 19, 2019 at 11:55 AM<br>
<b>To: </b>SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Subject: </b>[spring] draft-ietf-spring-srv6-network-programming - 2 wee=
k Early Allocation Call</span></p>
</div>
<div>
<p class=3D"MsoNormal">&nbsp;</p>
</div>
<pre>Hi SPRING WG,</pre>
<pre>&nbsp;</pre>
<pre>This begins a 2 week Early Allocation call for a =A1=B0Ethernet=A1=B1 =
value from the &quot;Protocol Numbers&quot; registry.</pre>
<pre><a href=3D"https://tools.ietf.org/html/draft-ietf-spring-srv6-network-=
programming-07#section-9.1" rel=3D"noopener noreferrer" target=3D"_blank">h=
ttps://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#se=
ction-9.1</a></pre>
<pre><a href=3D"https://tools.ietf.org/html/draft-ietf-spring-srv6-network-=
programming-07#section-5.3" rel=3D"noopener noreferrer" target=3D"_blank">h=
ttps://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#se=
ction-5.3</a></pre>
<pre><a href=3D"https://www.iana.org/assignments/protocol-numbers/protocol-=
numbers.xhtml" rel=3D"noopener noreferrer" target=3D"_blank">https://www.ia=
na.org/assignments/protocol-numbers/protocol-numbers.xhtml</a></pre>
<pre>&nbsp;</pre>
<pre>In parallel of the Working Group Last Call which is currently running,=
 the authors are requesting for early code point allocation from IANA as im=
plementations are under way.</pre>
<pre>&nbsp;</pre>
<pre>The criteria for early allocation are:</pre>
<pre>&nbsp;&nbsp; a.&nbsp; The code points must be from a space designated =
as &quot;RFC</pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Required&quot;, &quot;IETF Review=
&quot;, or &quot;Standards Action&quot;.&nbsp; Additionally,</pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; requests for early assignment of =
code points from a</pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &quot;Specification Required&quot=
; registry are allowed if the</pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; specification will be published a=
s an RFC.</pre>
<pre>&nbsp;</pre>
<pre>&nbsp;&nbsp; b.&nbsp; The format, semantics, processing, and other rul=
es related to</pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; handling the protocol entities de=
fined by the code points</pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (henceforth called &quot;specific=
ations&quot;) must be adequately described</pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in an Internet-Draft.</pre>
<pre>&nbsp;</pre>
<pre>&nbsp;&nbsp; c.&nbsp; The specifications of these code points must be =
stable; i.e., if</pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; there is a change, implementation=
s based on the earlier and later</pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; specifications must be seamlessly=
 interoperable.</pre>
<pre>&nbsp;</pre>
<pre>&nbsp;&nbsp; d.&nbsp; The Working Group chairs and Area Directors (ADs=
) judge that</pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; there is sufficient interest in t=
he community for early (pre-RFC)</pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; implementation and deployment, or=
 that failure to make an early</pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; allocation might lead to contenti=
on for the code point in the</pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; field.</pre>
<pre><a href=3D"https://tools.ietf.org/html/rfc7120#section-2" rel=3D"noope=
ner noreferrer" target=3D"_blank">https://tools.ietf.org/html/rfc7120#secti=
on-2</a></pre>
<pre>&nbsp;</pre>
<pre>I believe the above conditions are met. (minus the AD judgement which =
is further down in the process)</pre>
<pre>&nbsp;</pre>
<pre>As a reminder, this topic has mainly been discussed following IETF 105=
 (Montr=A8=A6al) both during the meeting and on the mailing list.</pre>
<pre>During IETF 106 it has been discussed in the IntArea WG. <a href=3D"ht=
tps://datatracker.ietf.org/meeting/106/proceedings#intarea" rel=3D"noopener=
 noreferrer" target=3D"_blank">https://datatracker.ietf.org/meeting/106/pro=
ceedings#intarea</a></pre>
<pre>&nbsp;</pre>
<pre>Note that this code point is not to be specific to SRv6. Depending on =
AD guidance, this specific code point even be moved from draft-ietf-spring-=
srv6-network-programming into a specific 1 page draft.</pre>
<pre>&nbsp;</pre>
<pre>If you support early adoption, &nbsp;please include =A1=B0support=A1=
=B1 along with any comments about the draft=A1=AFs technical solution.</pre=
>
<pre>&nbsp;</pre>
<pre>If you do not support early allocation, please include =A1=B0no suppor=
t=A1=B1 in your email and indicate why.</pre>
<pre>&nbsp;</pre>
<pre>Thank you,</pre>
<pre>--Bruno</pre>
<p class=3D"MsoNormal">&nbsp;</p>
<pre>______________________________________________________________________=
___________________________________________________</pre>
<pre>&nbsp;</pre>
<pre>Ce message et ses pieces jointes peuvent contenir des informations con=
fidentielles ou privilegiees et ne doivent donc</pre>
<pre>pas etre diffuses, exploites ou copies sans autorisation. Si vous avez=
 recu ce message par erreur, veuillez le signaler</pre>
<pre>a l'expediteur et le detruire ainsi que les pieces jointes. Les messag=
es electroniques etant susceptibles d'alteration,</pre>
<pre>Orange decline toute responsabilite si ce message a ete altere, deform=
e ou falsifie. Merci.</pre>
<pre>&nbsp;</pre>
<pre>This message and its attachments may contain confidential or privilege=
d information that may be protected by law;</pre>
<pre>they should not be distributed, used or copied without authorisation.<=
/pre>
<pre>If you have received this email in error, please notify the sender and=
 delete this message and its attachments.</pre>
<pre>As emails may be altered, Orange is not liable for messages that have =
been modified, changed or falsified.</pre>
<pre>Thank you.</pre>
</div>
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Hi,

I support the early allocation.

Best regards,
Jie

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of bruno.decraene@o=
range.com
Sent: Friday, December 20, 2019 12:54 AM
To: SPRING WG <spring@ietf.org>
Subject: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early=
 Allocation Call


Hi SPRING WG,



This begins a 2 week Early Allocation call for a "Ethernet" value from the =
"Protocol Numbers" registry.

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-9.1

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-5.3

https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml



In parallel of the Working Group Last Call which is currently running, the =
authors are requesting for early code point allocation from IANA as impleme=
ntations are under way.



The criteria for early allocation are:

   a.  The code points must be from a space designated as "RFC

       Required", "IETF Review", or "Standards Action".  Additionally,

       requests for early assignment of code points from a

       "Specification Required" registry are allowed if the

       specification will be published as an RFC.



   b.  The format, semantics, processing, and other rules related to

       handling the protocol entities defined by the code points

       (henceforth called "specifications") must be adequately described

       in an Internet-Draft.



   c.  The specifications of these code points must be stable; i.e., if

       there is a change, implementations based on the earlier and later

       specifications must be seamlessly interoperable.



   d.  The Working Group chairs and Area Directors (ADs) judge that

       there is sufficient interest in the community for early (pre-RFC)

       implementation and deployment, or that failure to make an early

       allocation might lead to contention for the code point in the

       field.

https://tools.ietf.org/html/rfc7120#section-2



I believe the above conditions are met. (minus the AD judgement which is fu=
rther down in the process)



As a reminder, this topic has mainly been discussed following IETF 105 (Mon=
tr=E9al) both during the meeting and on the mailing list.

During IETF 106 it has been discussed in the IntArea WG. https://datatracke=
r.ietf.org/meeting/106/proceedings#intarea



Note that this code point is not to be specific to SRv6. Depending on AD gu=
idance, this specific code point even be moved from draft-ietf-spring-srv6-=
network-programming into a specific 1 page draft.



If you support early adoption,  please include "support" along with any com=
ments about the draft's technical solution.



If you do not support early allocation, please include "no support" in your=
 email and indicate why.



Thank you,

--Bruno


___________________________________________________________________________=
______________________________________________



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pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler

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Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.



This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;

they should not be distributed, used or copied without authorisation.

If you have received this email in error, please notify the sender and dele=
te this message and its attachments.

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Thank you.

--_000_76CD132C3ADEF848BD84D028D243C927CD588E95NKGEML515MBXchi_
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<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D;mso-fareast-language:ZH-CN">Hi,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D;mso-fareast-language:ZH-CN">I support the early allocation.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D;mso-fareast-language:ZH-CN">Best regards,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D;mso-fareast-language:ZH-CN">Jie<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"mso-fareast-languag=
e:ZH-CN">From:</span></b><span lang=3D"EN-US" style=3D"mso-fareast-language=
:ZH-CN"> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>bruno.decraene@orange.com<br>
<b>Sent:</b> Friday, December 20, 2019 12:54 AM<br>
<b>To:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Subject:</b> [spring] draft-ietf-spring-srv6-network-programming - 2 wee=
k Early Allocation Call<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<pre><span lang=3D"EN-US">Hi SPRING WG,<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">This begins a 2 week Early Allocation call for a =
&#8220;Ethernet&#8221; value from the &quot;Protocol Numbers&quot; registry=
.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-07#section-9.1">https://tools.ietf.org/htm=
l/draft-ietf-spring-srv6-network-programming-07#section-9.1</a><o:p></o:p><=
/span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-07#section-5.3">https://tools.ietf.org/htm=
l/draft-ietf-spring-srv6-network-programming-07#section-5.3</a><o:p></o:p><=
/span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://www.iana.org/assignments/proto=
col-numbers/protocol-numbers.xhtml">https://www.iana.org/assignments/protoc=
ol-numbers/protocol-numbers.xhtml</a><o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">In parallel of the Working Group Last Call which =
is currently running, the authors are requesting for early code point alloc=
ation from IANA as implementations are under way.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">The criteria for early allocation are:<o:p></o:p>=
</span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp; a.&nbsp; The code points must be fro=
m a space designated as &quot;RFC<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Required&quo=
t;, &quot;IETF Review&quot;, or &quot;Standards Action&quot;.&nbsp; Additio=
nally,<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; requests for=
 early assignment of code points from a<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &quot;Specif=
ication Required&quot; registry are allowed if the<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; specificatio=
n will be published as an RFC.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp; b.&nbsp; The format, semantics, proc=
essing, and other rules related to<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; handling the=
 protocol entities defined by the code points<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (henceforth =
called &quot;specifications&quot;) must be adequately described<o:p></o:p><=
/span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;in an Intern=
et-Draft.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp; c.&nbsp; The specifications of these=
 code points must be stable; i.e., if<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; there is a c=
hange, implementations based on the earlier and later<o:p></o:p></span></pr=
e>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; specificatio=
ns must be seamlessly interoperable.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp; d.&nbsp; The Working Group chairs an=
d Area Directors (ADs) judge that<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; there is suf=
ficient interest in the community for early (pre-RFC)<o:p></o:p></span></pr=
e>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; implementati=
on and deployment, or that failure to make an early<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; allocation m=
ight lead to contention for the code point in the<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;field.<o:p><=
/o:p></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/rfc7120#se=
ction-2">https://tools.ietf.org/html/rfc7120#section-2</a><o:p></o:p></span=
></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">I believe the above conditions are met. (minus th=
e AD judgement which is further down in the process)<o:p></o:p></span></pre=
>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">As a reminder, this topic has mainly been discuss=
ed following IETF 105 (Montr=E9al) both during the meeting and on the maili=
ng list.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">During IETF 106 it has been discussed in the IntA=
rea WG. <a href=3D"https://datatracker.ietf.org/meeting/106/proceedings#int=
area">https://datatracker.ietf.org/meeting/106/proceedings#intarea</a><o:p>=
</o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">Note that this code point is not to be specific t=
o SRv6. Depending on AD guidance, this specific code point even be moved fr=
om draft-ietf-spring-srv6-network-programming into a specific 1 page draft.=
<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">If you support early adoption, &nbsp;please inclu=
de &#8220;support&#8221; along with any comments about the draft&#8217;s te=
chnical solution.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">If you do not support early allocation, please in=
clude &#8220;no support&#8221; in your email and indicate why.<o:p></o:p></=
span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">Thank you,<o:p></o:p></span></pre>
<pre><span lang=3D"FR">--Bruno<o:p></o:p></span></pre>
<p class=3D"MsoNormal"><span lang=3D"FR"><o:p>&nbsp;</o:p></span></p>
<pre><span lang=3D"FR">____________________________________________________=
_____________________________________________________________________<o:p><=
/o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">Ce message et ses pieces jointes peuvent contenir de=
s informations confidentielles ou privilegiees et ne doivent donc<o:p></o:p=
></span></pre>
<pre><span lang=3D"FR">pas etre diffuses, exploites ou copies sans autorisa=
tion. Si vous avez recu ce message par erreur, veuillez le signaler<o:p></o=
:p></span></pre>
<pre><span lang=3D"FR">a l'expediteur et le detruire ainsi que les pieces j=
ointes. Les messages electroniques etant susceptibles d'alteration,<o:p></o=
:p></span></pre>
<pre><span lang=3D"FR">Orange decline toute responsabilite si ce message a =
ete altere, deforme ou falsifie. Merci.<o:p></o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">This message and its attachments may contain confide=
ntial or privileged information that may be protected by law;<o:p></o:p></s=
pan></pre>
<pre><span lang=3D"FR">they should not be distributed, used or copied witho=
ut authorisation.<o:p></o:p></span></pre>
<pre><span lang=3D"FR">If you have received this email in error, please not=
ify the sender and delete this message and its attachments.<o:p></o:p></spa=
n></pre>
<pre><span lang=3D"FR">As emails may be altered, Orange is not liable for m=
essages that have been modified, changed or falsified.<o:p></o:p></span></p=
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From: Huzhibo <huzhibo@huawei.com>
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Support.

Best regards
Zhibo Hu
From: spring [mailto:spring-bounces@ietf.org] On Behalf Of bruno.decraene@o=
range.com
Sent: Friday, December 20, 2019 12:54 AM
To: SPRING WG <spring@ietf.org>
Subject: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early=
 Allocation Call


Hi SPRING WG,



This begins a 2 week Early Allocation call for a "Ethernet" value from the =
"Protocol Numbers" registry.

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-9.1

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-5.3

https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml



In parallel of the Working Group Last Call which is currently running, the =
authors are requesting for early code point allocation from IANA as impleme=
ntations are under way.



The criteria for early allocation are:

   a.  The code points must be from a space designated as "RFC

       Required", "IETF Review", or "Standards Action".  Additionally,

       requests for early assignment of code points from a

       "Specification Required" registry are allowed if the

       specification will be published as an RFC.



   b.  The format, semantics, processing, and other rules related to

       handling the protocol entities defined by the code points

       (henceforth called "specifications") must be adequately described

       in an Internet-Draft.



   c.  The specifications of these code points must be stable; i.e., if

       there is a change, implementations based on the earlier and later

       specifications must be seamlessly interoperable.



   d.  The Working Group chairs and Area Directors (ADs) judge that

       there is sufficient interest in the community for early (pre-RFC)

       implementation and deployment, or that failure to make an early

       allocation might lead to contention for the code point in the

       field.

https://tools.ietf.org/html/rfc7120#section-2



I believe the above conditions are met. (minus the AD judgement which is fu=
rther down in the process)



As a reminder, this topic has mainly been discussed following IETF 105 (Mon=
tr=E9al) both during the meeting and on the mailing list.

During IETF 106 it has been discussed in the IntArea WG. https://datatracke=
r.ietf.org/meeting/106/proceedings#intarea



Note that this code point is not to be specific to SRv6. Depending on AD gu=
idance, this specific code point even be moved from draft-ietf-spring-srv6-=
network-programming into a specific 1 page draft.



If you support early adoption,  please include "support" along with any com=
ments about the draft's technical solution.



If you do not support early allocation, please include "no support" in your=
 email and indicate why.



Thank you,

--Bruno


___________________________________________________________________________=
______________________________________________



Ce message et ses pieces jointes peuvent contenir des informations confiden=
tielles ou privilegiees et ne doivent donc

pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler

a l'expediteur et le detruire ainsi que les pieces jointes. Les messages el=
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Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.



This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;

they should not be distributed, used or copied without authorisation.

If you have received this email in error, please notify the sender and dele=
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<body lang=3D"ZH-CN" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"FR" style=3D"font-size:12.0pt;font-fam=
ily:&quot;Times New Roman&quot;,serif">Support.
<o:p></o:p></span></p>
<p><span lang=3D"FR">Best regards<br>
Zhibo Hu<o:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"mso-fareast-languag=
e:ZH-CN">From:</span></b><span lang=3D"EN-US" style=3D"mso-fareast-language=
:ZH-CN"> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>bruno.decraene@orange.com<br>
<b>Sent:</b> Friday, December 20, 2019 12:54 AM<br>
<b>To:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Subject:</b> [spring] draft-ietf-spring-srv6-network-programming - 2 wee=
k Early Allocation Call<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<pre><span lang=3D"EN-US">Hi SPRING WG,<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">This begins a 2 week Early Allocation call for a =
&#8220;Ethernet&#8221; value from the &quot;Protocol Numbers&quot; registry=
.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-07#section-9.1">https://tools.ietf.org/htm=
l/draft-ietf-spring-srv6-network-programming-07#section-9.1</a><o:p></o:p><=
/span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-07#section-5.3">https://tools.ietf.org/htm=
l/draft-ietf-spring-srv6-network-programming-07#section-5.3</a><o:p></o:p><=
/span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://www.iana.org/assignments/proto=
col-numbers/protocol-numbers.xhtml">https://www.iana.org/assignments/protoc=
ol-numbers/protocol-numbers.xhtml</a><o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">In parallel of the Working Group Last Call which =
is currently running, the authors are requesting for early code point alloc=
ation from IANA as implementations are under way.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">The criteria for early allocation are:<o:p></o:p>=
</span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp; a.&nbsp; The code points must be fro=
m a space designated as &quot;RFC<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Required&quo=
t;, &quot;IETF Review&quot;, or &quot;Standards Action&quot;.&nbsp; Additio=
nally,<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; requests for=
 early assignment of code points from a<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &quot;Specif=
ication Required&quot; registry are allowed if the<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; specificatio=
n will be published as an RFC.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp; b.&nbsp; The format, semantics, proc=
essing, and other rules related to<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; handling the=
 protocol entities defined by the code points<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (henceforth =
called &quot;specifications&quot;) must be adequately described<o:p></o:p><=
/span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in an Intern=
et-Draft.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp; c.&nbsp; The specifications of these=
 code points must be stable; i.e., if<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; there is a c=
hange, implementations based on the earlier and later<o:p></o:p></span></pr=
e>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; specificatio=
ns must be seamlessly interoperable.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp; d.&nbsp; The Working Group chairs an=
d Area Directors (ADs) judge that<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; there is suf=
ficient interest in the community for early (pre-RFC)<o:p></o:p></span></pr=
e>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; implementati=
on and deployment, or that failure to make an early<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; allocation m=
ight lead to contention for the code point in the<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; field.<o:p><=
/o:p></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/rfc7120#se=
ction-2">https://tools.ietf.org/html/rfc7120#section-2</a><o:p></o:p></span=
></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">I believe the above conditions are met. (minus th=
e AD judgement which is further down in the process)<o:p></o:p></span></pre=
>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">As a reminder, this topic has mainly been discuss=
ed following IETF 105 (Montr=E9al) both during the meeting and on the maili=
ng list.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">During IETF 106 it has been discussed in the IntA=
rea WG. <a href=3D"https://datatracker.ietf.org/meeting/106/proceedings#int=
area">https://datatracker.ietf.org/meeting/106/proceedings#intarea</a><o:p>=
</o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">Note that this code point is not to be specific t=
o SRv6. Depending on AD guidance, this specific code point even be moved fr=
om draft-ietf-spring-srv6-network-programming into a specific 1 page draft.=
<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">If you support early adoption, &nbsp;please inclu=
de &#8220;support&#8221; along with any comments about the draft&#8217;s te=
chnical solution.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">If you do not support early allocation, please in=
clude &#8220;no support&#8221; in your email and indicate why.<o:p></o:p></=
span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">Thank you,<o:p></o:p></span></pre>
<pre><span lang=3D"FR">--Bruno<o:p></o:p></span></pre>
<p class=3D"MsoNormal"><span lang=3D"FR"><o:p>&nbsp;</o:p></span></p>
<pre><span lang=3D"FR">____________________________________________________=
_____________________________________________________________________<o:p><=
/o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">Ce message et ses pieces jointes peuvent contenir de=
s informations confidentielles ou privilegiees et ne doivent donc<o:p></o:p=
></span></pre>
<pre><span lang=3D"FR">pas etre diffuses, exploites ou copies sans autorisa=
tion. Si vous avez recu ce message par erreur, veuillez le signaler<o:p></o=
:p></span></pre>
<pre><span lang=3D"FR">a l'expediteur et le detruire ainsi que les pieces j=
ointes. Les messages electroniques etant susceptibles d'alteration,<o:p></o=
:p></span></pre>
<pre><span lang=3D"FR">Orange decline toute responsabilite si ce message a =
ete altere, deforme ou falsifie. Merci.<o:p></o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">This message and its attachments may contain confide=
ntial or privileged information that may be protected by law;<o:p></o:p></s=
pan></pre>
<pre><span lang=3D"FR">they should not be distributed, used or copied witho=
ut authorisation.<o:p></o:p></span></pre>
<pre><span lang=3D"FR">If you have received this email in error, please not=
ify the sender and delete this message and its attachments.<o:p></o:p></spa=
n></pre>
<pre><span lang=3D"FR">As emails may be altered, Orange is not liable for m=
essages that have been modified, changed or falsified.<o:p></o:p></span></p=
re>
<pre><span lang=3D"FR">Thank you.<o:p></o:p></span></pre>
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<body lang=3D"ZH-CN" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&=
quot;,sans-serif;color:black">Hi,<o:p></o:p></span></p>
<p><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&=
quot;,sans-serif;color:black"><o:p>&nbsp;</o:p></span></p>
<p><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&=
quot;,sans-serif;color:black"><o:p>&nbsp;</o:p></span></p>
<p><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&=
quot;,sans-serif;color:black">I support this early allocation.<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:black">&nbsp;<o:=
p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:black">&nbsp;<o:=
p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:black">Best Rega=
rds,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:black">Xuesong <=
o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:black"><o:p>&nbs=
p;</o:p></span></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt">
<div>
<div>
<div>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"font-size:12.0pt;co=
lor:black">From:
</span></b><span lang=3D"EN-US" style=3D"font-size:12.0pt;color:black">spri=
ng &lt;<a href=3D"mailto:spring-bounces@ietf.org">spring-bounces@ietf.org</=
a>&gt; on behalf of &quot;<a href=3D"mailto:bruno.decraene@orange.com">brun=
o.decraene@orange.com</a>&quot; &lt;<a href=3D"mailto:bruno.decraene@orange=
.com">bruno.decraene@orange.com</a>&gt;<br>
<b>Date: </b>Thursday, December 19, 2019 at 11:55 AM<br>
<b>To: </b>SPRING WG &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org=
</a>&gt;<br>
<b>Subject: </b>[spring] draft-ietf-spring-srv6-network-programming - 2 wee=
k Early Allocation Call</span><span lang=3D"EN-US" style=3D"color:black"><o=
:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:black">&nbsp;<o:=
p></o:p></span></p>
</div>
<pre><span lang=3D"EN-US" style=3D"color:black">Hi SPRING WG,<o:p></o:p></s=
pan></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;<o:p></o:p></span></p=
re>
<pre><span lang=3D"EN-US" style=3D"color:black">This begins a 2 week Early =
Allocation call for a =A1=B0Ethernet=A1=B1 value from the &quot;Protocol Nu=
mbers&quot; registry.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black"><a href=3D"https://tools.ie=
tf.org/html/draft-ietf-spring-srv6-network-programming-07#section-9.1" targ=
et=3D"_blank">https://tools.ietf.org/html/draft-ietf-spring-srv6-network-pr=
ogramming-07#section-9.1</a><o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black"><a href=3D"https://tools.ie=
tf.org/html/draft-ietf-spring-srv6-network-programming-07#section-5.3" targ=
et=3D"_blank">https://tools.ietf.org/html/draft-ietf-spring-srv6-network-pr=
ogramming-07#section-5.3</a><o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black"><a href=3D"https://www.iana=
.org/assignments/protocol-numbers/protocol-numbers.xhtml" target=3D"_blank"=
>https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml</=
a><o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;<o:p></o:p></span></p=
re>
<pre><span lang=3D"EN-US" style=3D"color:black">In parallel of the Working =
Group Last Call which is currently running, the authors are requesting for =
early code point allocation from IANA as implementations are under way.<o:p=
></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;<o:p></o:p></span></p=
re>
<pre><span lang=3D"EN-US" style=3D"color:black">The criteria for early allo=
cation are:<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;&nbsp; a.&nbsp; The c=
ode points must be from a space designated as &quot;RFC<o:p></o:p></span></=
pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; Required&quot;, &quot;IETF Review&quot;, or &quot;Standards Actio=
n&quot;.&nbsp; Additionally,<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; requests for early assignment of code points from a<o:p></o:p></s=
pan></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; &quot;Specification Required&quot; registry are allowed if the<o:=
p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; specification will be published as an RFC.<o:p></o:p></span></pre=
>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;<o:p></o:p></span></p=
re>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;&nbsp; b.&nbsp; The f=
ormat, semantics, processing, and other rules related to<o:p></o:p></span><=
/pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; handling the protocol entities defined by the code points<o:p></o=
:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; (henceforth called &quot;specifications&quot;) must be adequately=
 described<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; in an Internet-Draft.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;<o:p></o:p></span></p=
re>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;&nbsp; c.&nbsp; The s=
pecifications of these code points must be stable; i.e., if<o:p></o:p></spa=
n></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; there is a change, implementations based on the earlier and later=
<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; specifications must be seamlessly interoperable.<o:p></o:p></span=
></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;<o:p></o:p></span></p=
re>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;&nbsp; d.&nbsp; The W=
orking Group chairs and Area Directors (ADs) judge that<o:p></o:p></span></=
pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; there is sufficient interest in the community for early (pre-RFC)=
<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; implementation and deployment, or that failure to make an early<o=
:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; allocation might lead to contention for the code point in the<o:p=
></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; field.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black"><a href=3D"https://tools.ie=
tf.org/html/rfc7120#section-2" target=3D"_blank">https://tools.ietf.org/htm=
l/rfc7120#section-2</a><o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;<o:p></o:p></span></p=
re>
<pre><span lang=3D"EN-US" style=3D"color:black">I believe the above conditi=
ons are met. (minus the AD judgement which is further down in the process)<=
o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;<o:p></o:p></span></p=
re>
<pre><span lang=3D"EN-US" style=3D"color:black">As a reminder, this topic h=
as mainly been discussed following IETF 105 (Montr=A8=A6al) both during the=
 meeting and on the mailing list.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">During IETF 106 it has been=
 discussed in the IntArea WG. <a href=3D"https://datatracker.ietf.org/meeti=
ng/106/proceedings#intarea" target=3D"_blank">https://datatracker.ietf.org/=
meeting/106/proceedings#intarea</a><o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;<o:p></o:p></span></p=
re>
<pre><span lang=3D"EN-US" style=3D"color:black">Note that this code point i=
s not to be specific to SRv6. Depending on AD guidance, this specific code =
point even be moved from draft-ietf-spring-srv6-network-programming into a =
specific 1 page draft.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;<o:p></o:p></span></p=
re>
<pre><span lang=3D"EN-US" style=3D"color:black">If you support early adopti=
on, &nbsp;please include =A1=B0support=A1=B1 along with any comments about =
the draft=A1=AFs technical solution.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;<o:p></o:p></span></p=
re>
<pre><span lang=3D"EN-US" style=3D"color:black">If you do not support early=
 allocation, please include =A1=B0no support=A1=B1 in your email and indica=
te why.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;<o:p></o:p></span></p=
re>
<pre><span lang=3D"EN-US" style=3D"color:black">Thank you,<o:p></o:p></span=
></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">--Bruno<o:p></o:p></span></=
pre>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:black">&nbsp;<o:=
p></o:p></span></p>
<pre><span lang=3D"EN-US" style=3D"color:black">___________________________=
___________________________________________________________________________=
___________________<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;<o:p></o:p></span></p=
re>
<pre><span lang=3D"EN-US" style=3D"color:black">Ce message et ses pieces jo=
intes peuvent contenir des informations confidentielles ou privilegiees et =
ne doivent donc<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">pas etre diffuses, exploite=
s ou copies sans autorisation. Si vous avez recu ce message par erreur, veu=
illez le signaler<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">a l'expediteur et le detrui=
re ainsi que les pieces jointes. Les messages electroniques etant susceptib=
les d'alteration,<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">Orange decline toute respon=
sabilite si ce message a ete altere, deforme ou falsifie. Merci.<o:p></o:p>=
</span></pre>
<pre><span lang=3D"EN-US" style=3D"color:black">&nbsp;<o:p></o:p></span></p=
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<pre><span lang=3D"EN-US" style=3D"color:black">This message and its attach=
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mail in error, please notify the sender and delete this message and its att=
achments.<o:p></o:p></span></pre>
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range is not liable for messages that have been modified, changed or falsif=
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<pre><span lang=3D"EN-US" style=3D"color:black">Thank you.<o:p></o:p></span=
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From: Mach Chen <mach.chen@huawei.com>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
Thread-Topic: draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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Hi,

Given there are more and more on-going implementations and interoperate tes=
ting, I think it's better to allocate the necessary code points  asap. Henc=
e, I support the Early Allocation request.

Best regards,
Mach

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of bruno.decraene@o=
range.com
Sent: Friday, December 20, 2019 12:54 AM
To: SPRING WG <spring@ietf.org>
Subject: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early=
 Allocation Call


Hi SPRING WG,



This begins a 2 week Early Allocation call for a "Ethernet" value from the =
"Protocol Numbers" registry.

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-9.1

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-5.3

https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml



In parallel of the Working Group Last Call which is currently running, the =
authors are requesting for early code point allocation from IANA as impleme=
ntations are under way.



The criteria for early allocation are:

   a.  The code points must be from a space designated as "RFC

       Required", "IETF Review", or "Standards Action".  Additionally,

       requests for early assignment of code points from a

       "Specification Required" registry are allowed if the

       specification will be published as an RFC.



   b.  The format, semantics, processing, and other rules related to

       handling the protocol entities defined by the code points

       (henceforth called "specifications") must be adequately described

       in an Internet-Draft.



   c.  The specifications of these code points must be stable; i.e., if

       there is a change, implementations based on the earlier and later

       specifications must be seamlessly interoperable.



   d.  The Working Group chairs and Area Directors (ADs) judge that

       there is sufficient interest in the community for early (pre-RFC)

       implementation and deployment, or that failure to make an early

       allocation might lead to contention for the code point in the

       field.

https://tools.ietf.org/html/rfc7120#section-2



I believe the above conditions are met. (minus the AD judgement which is fu=
rther down in the process)



As a reminder, this topic has mainly been discussed following IETF 105 (Mon=
tr=E9al) both during the meeting and on the mailing list.

During IETF 106 it has been discussed in the IntArea WG. https://datatracke=
r.ietf.org/meeting/106/proceedings#intarea



Note that this code point is not to be specific to SRv6. Depending on AD gu=
idance, this specific code point even be moved from draft-ietf-spring-srv6-=
network-programming into a specific 1 page draft.



If you support early adoption,  please include "support" along with any com=
ments about the draft's technical solution.



If you do not support early allocation, please include "no support" in your=
 email and indicate why.



Thank you,

--Bruno


___________________________________________________________________________=
______________________________________________



Ce message et ses pieces jointes peuvent contenir des informations confiden=
tielles ou privilegiees et ne doivent donc

pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler

a l'expediteur et le detruire ainsi que les pieces jointes. Les messages el=
ectroniques etant susceptibles d'alteration,

Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.



This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;

they should not be distributed, used or copied without authorisation.

If you have received this email in error, please notify the sender and dele=
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<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D;mso-fareast-language:ZH-CN">Hi,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D;mso-fareast-language:ZH-CN">Given there are more and more on-going=
 implementations and interoperate testing, I think it&#8217;s better to all=
ocate the necessary code points &nbsp;asap. Hence,
 I support the Early Allocation request. <o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D;mso-fareast-language:ZH-CN">Best regards,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D;mso-fareast-language:ZH-CN">Mach<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></p>
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<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"mso-fareast-languag=
e:ZH-CN">From:</span></b><span lang=3D"EN-US" style=3D"mso-fareast-language=
:ZH-CN"> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>bruno.decraene@orange.com<br>
<b>Sent:</b> Friday, December 20, 2019 12:54 AM<br>
<b>To:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Subject:</b> [spring] draft-ietf-spring-srv6-network-programming - 2 wee=
k Early Allocation Call<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<pre><span lang=3D"EN-US">Hi SPRING WG,<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">This begins a 2 week Early Allocation call for a =
&#8220;Ethernet&#8221; value from the &quot;Protocol Numbers&quot; registry=
.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-07#section-9.1">https://tools.ietf.org/htm=
l/draft-ietf-spring-srv6-network-programming-07#section-9.1</a><o:p></o:p><=
/span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-07#section-5.3">https://tools.ietf.org/htm=
l/draft-ietf-spring-srv6-network-programming-07#section-5.3</a><o:p></o:p><=
/span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://www.iana.org/assignments/proto=
col-numbers/protocol-numbers.xhtml">https://www.iana.org/assignments/protoc=
ol-numbers/protocol-numbers.xhtml</a><o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">In parallel of the Working Group Last Call which =
is currently running, the authors are requesting for early code point alloc=
ation from IANA as implementations are under way.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">The criteria for early allocation are:<o:p></o:p>=
</span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp; a.&nbsp; The code points must be fro=
m a space designated as &quot;RFC<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Required&quo=
t;, &quot;IETF Review&quot;, or &quot;Standards Action&quot;.&nbsp; Additio=
nally,<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; requests for=
 early assignment of code points from a<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &quot;Specif=
ication Required&quot; registry are allowed if the<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; specificatio=
n will be published as an RFC.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp; b.&nbsp; The format, semantics, proc=
essing, and other rules related to<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; handling the=
 protocol entities defined by the code points<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (henceforth =
called &quot;specifications&quot;) must be adequately described<o:p></o:p><=
/span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in an Intern=
et-Draft.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp; c.&nbsp; The specifications of these=
 code points must be stable; i.e., if<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; there is a c=
hange, implementations based on the earlier and later<o:p></o:p></span></pr=
e>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; specificatio=
ns must be seamlessly interoperable.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp; d.&nbsp; The Working Group chairs an=
d Area Directors (ADs) judge that<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; there is suf=
ficient interest in the community for early (pre-RFC)<o:p></o:p></span></pr=
e>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; implementati=
on and deployment, or that failure to make an early<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; allocation m=
ight lead to contention for the code point in the<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; field.<o:p><=
/o:p></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/rfc7120#se=
ction-2">https://tools.ietf.org/html/rfc7120#section-2</a><o:p></o:p></span=
></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">I believe the above conditions are met. (minus th=
e AD judgement which is further down in the process)<o:p></o:p></span></pre=
>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">As a reminder, this topic has mainly been discuss=
ed following IETF 105 (Montr=E9al) both during the meeting and on the maili=
ng list.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">During IETF 106 it has been discussed in the IntA=
rea WG. <a href=3D"https://datatracker.ietf.org/meeting/106/proceedings#int=
area">https://datatracker.ietf.org/meeting/106/proceedings#intarea</a><o:p>=
</o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">Note that this code point is not to be specific t=
o SRv6. Depending on AD guidance, this specific code point even be moved fr=
om draft-ietf-spring-srv6-network-programming into a specific 1 page draft.=
<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">If you support early adoption, &nbsp;please inclu=
de &#8220;support&#8221; along with any comments about the draft&#8217;s te=
chnical solution.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">If you do not support early allocation, please in=
clude &#8220;no support&#8221; in your email and indicate why.<o:p></o:p></=
span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">Thank you,<o:p></o:p></span></pre>
<pre><span lang=3D"FR">--Bruno<o:p></o:p></span></pre>
<p class=3D"MsoNormal"><span lang=3D"FR"><o:p>&nbsp;</o:p></span></p>
<pre><span lang=3D"FR">____________________________________________________=
_____________________________________________________________________<o:p><=
/o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">Ce message et ses pieces jointes peuvent contenir de=
s informations confidentielles ou privilegiees et ne doivent donc<o:p></o:p=
></span></pre>
<pre><span lang=3D"FR">pas etre diffuses, exploites ou copies sans autorisa=
tion. Si vous avez recu ce message par erreur, veuillez le signaler<o:p></o=
:p></span></pre>
<pre><span lang=3D"FR">a l'expediteur et le detruire ainsi que les pieces j=
ointes. Les messages electroniques etant susceptibles d'alteration,<o:p></o=
:p></span></pre>
<pre><span lang=3D"FR">Orange decline toute responsabilite si ce message a =
ete altere, deforme ou falsifie. Merci.<o:p></o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">This message and its attachments may contain confide=
ntial or privileged information that may be protected by law;<o:p></o:p></s=
pan></pre>
<pre><span lang=3D"FR">they should not be distributed, used or copied witho=
ut authorisation.<o:p></o:p></span></pre>
<pre><span lang=3D"FR">If you have received this email in error, please not=
ify the sender and delete this message and its attachments.<o:p></o:p></spa=
n></pre>
<pre><span lang=3D"FR">As emails may be altered, Orange is not liable for m=
essages that have been modified, changed or falsified.<o:p></o:p></span></p=
re>
<pre><span lang=3D"FR">Thank you.<o:p></o:p></span></pre>
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From: Robert Raszuk <robert@raszuk.net>
Date: Fri, 3 Jan 2020 11:23:55 +0100
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To: Bruno Decraene <bruno.decraene@orange.com>
Cc: SPRING WG <spring@ietf.org>
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Subject: Re: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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Support

On Thu, Dec 19, 2019 at 5:54 PM <bruno.decraene@orange.com> wrote:

> Hi SPRING WG,
>
>
>
> This begins a 2 week Early Allocation call for a =E2=80=9CEthernet=E2=80=
=9D value from the "Protocol Numbers" registry.
>
> https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07=
#section-9.1
>
> https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07=
#section-5.3
>
> https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml
>
>
>
> In parallel of the Working Group Last Call which is currently running, th=
e authors are requesting for early code point allocation from IANA as imple=
mentations are under way.
>
>
>
> The criteria for early allocation are:
>
>    a.  The code points must be from a space designated as "RFC
>
>        Required", "IETF Review", or "Standards Action".  Additionally,
>
>        requests for early assignment of code points from a
>
>        "Specification Required" registry are allowed if the
>
>        specification will be published as an RFC.
>
>
>
>    b.  The format, semantics, processing, and other rules related to
>
>        handling the protocol entities defined by the code points
>
>        (henceforth called "specifications") must be adequately described
>
>        in an Internet-Draft.
>
>
>
>    c.  The specifications of these code points must be stable; i.e., if
>
>        there is a change, implementations based on the earlier and later
>
>        specifications must be seamlessly interoperable.
>
>
>
>    d.  The Working Group chairs and Area Directors (ADs) judge that
>
>        there is sufficient interest in the community for early (pre-RFC)
>
>        implementation and deployment, or that failure to make an early
>
>        allocation might lead to contention for the code point in the
>
>        field.
>
> https://tools.ietf.org/html/rfc7120#section-2
>
>
>
> I believe the above conditions are met. (minus the AD judgement which is =
further down in the process)
>
>
>
> As a reminder, this topic has mainly been discussed following IETF 105 (M=
ontr=C3=A9al) both during the meeting and on the mailing list.
>
> During IETF 106 it has been discussed in the IntArea WG. https://datatrac=
ker.ietf.org/meeting/106/proceedings#intarea
>
>
>
> Note that this code point is not to be specific to SRv6. Depending on AD =
guidance, this specific code point even be moved from draft-ietf-spring-srv=
6-network-programming into a specific 1 page draft.
>
>
>
> If you support early adoption,  please include =E2=80=9Csupport=E2=80=9D =
along with any comments about the draft=E2=80=99s technical solution.
>
>
>
> If you do not support early allocation, please include =E2=80=9Cno suppor=
t=E2=80=9D in your email and indicate why.
>
>
>
> Thank you,
>
> --Bruno
>
>
>
> _________________________________________________________________________=
________________________________________________
>
> Ce message et ses pieces jointes peuvent contenir des informations confid=
entielles ou privilegiees et ne doivent donc
> pas etre diffuses, exploites ou copies sans autorisation. Si vous avez re=
cu ce message par erreur, veuillez le signaler
> a l'expediteur et le detruire ainsi que les pieces jointes. Les messages =
electroniques etant susceptibles d'alteration,
> Orange decline toute responsabilite si ce message a ete altere, deforme o=
u falsifie. Merci.
>
> This message and its attachments may contain confidential or privileged i=
nformation that may be protected by law;
> they should not be distributed, used or copied without authorisation.
> If you have received this email in error, please notify the sender and de=
lete this message and its attachments.
> As emails may be altered, Orange is not liable for messages that have bee=
n modified, changed or falsified.
> Thank you.
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

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<div dir=3D"ltr">Support</div><br><div class=3D"gmail_quote"><div dir=3D"lt=
r" class=3D"gmail_attr">On Thu, Dec 19, 2019 at 5:54 PM &lt;<a href=3D"mail=
to:bruno.decraene@orange.com">bruno.decraene@orange.com</a>&gt; wrote:<br><=
/div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;bo=
rder-left:1px solid rgb(204,204,204);padding-left:1ex">







<div lang=3D"FR">
<div>
<pre><span lang=3D"EN-US">Hi SPRING WG,<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">This begins a 2 week Early Allocation call for a =
=E2=80=9CEthernet=E2=80=9D value from the &quot;Protocol Numbers&quot; regi=
stry.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-07#section-9.1" target=3D"_blank">https://=
tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#section-9=
.1</a><u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-07#section-5.3" target=3D"_blank">https://=
tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#section-5=
.3</a><u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://www.iana.org/assignments/proto=
col-numbers/protocol-numbers.xhtml" target=3D"_blank">https://www.iana.org/=
assignments/protocol-numbers/protocol-numbers.xhtml</a><u></u><u></u></span=
></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">In parallel of the Working Group Last Call which =
is currently running, the authors are requesting for early code point alloc=
ation from IANA as implementations are under way.<u></u><u></u></span></pre=
>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">The criteria for early allocation are:<u></u><u><=
/u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0 </span>a.<span>=C2=A0 </span>T=
he code points must be from a space designated as &quot;RFC<u></u><u></u></=
span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>Required&quot;, &quot;IETF Review&quot;, or &quot;Standards Action&quot;.<=
span>=C2=A0 </span>Additionally,<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>requests for early assignment of code points from a<u></u><u></u></span></=
pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>&quot;Specification Required&quot; registry are allowed if the<u></u><u></=
u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>specification will be published as an RFC.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0 </span>b.<span>=C2=A0 </span>T=
he format, semantics, processing, and other rules related to<u></u><u></u><=
/span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>handling the protocol entities defined by the code points<u></u><u></u></s=
pan></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>(henceforth called &quot;specifications&quot;) must be adequately describe=
d<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>in an Internet-Draft.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0 </span>c.<span>=C2=A0 </span>T=
he specifications of these code points must be stable; i.e., if<u></u><u></=
u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>there is a change, implementations based on the earlier and later<u></u><u=
></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>specifications must be seamlessly interoperable.<u></u><u></u></span></pre=
>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0 </span>d.<span>=C2=A0 </span>T=
he Working Group chairs and Area Directors (ADs) judge that<u></u><u></u></=
span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>there is sufficient interest in the community for early (pre-RFC)<u></u><u=
></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>implementation and deployment, or that failure to make an early<u></u><u><=
/u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>allocation might lead to contention for the code point in the<u></u><u></u=
></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>field.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/rfc7120#se=
ction-2" target=3D"_blank">https://tools.ietf.org/html/rfc7120#section-2</a=
><u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">I believe the above conditions are met. (minus th=
e AD judgement which is further down in the process)<u></u><u></u></span></=
pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">As a reminder, this topic has mainly been discuss=
ed following IETF 105 (Montr=C3=A9al) both during the meeting and on the ma=
iling list.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US">During IETF 106 it has been discussed in the <spa=
n>IntArea</span> WG. <a href=3D"https://datatracker.ietf.org/meeting/106/pr=
oceedings#intarea" target=3D"_blank">https://datatracker.ietf.org/meeting/1=
06/proceedings#intarea</a><u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">Note that this code point is not to be specific t=
o SRv6. Depending on AD guidance, this specific code point even be moved fr=
om draft-ietf-spring-srv6-network-programming into a specific 1 page draft.=
<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">If you support early adoption, =C2=A0please inclu=
de =E2=80=9Csupport=E2=80=9D along with any comments about the draft=E2=80=
=99s technical solution.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">If you do not support early allocation, please in=
clude =E2=80=9Cno support=E2=80=9D in your email and indicate why.<u></u><u=
></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span>Thank</span> <span>you</span>,<u></u><u></u></pre>
<pre>--Bruno<u></u><u></u></pre>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<pre>______________________________________________________________________=
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Subject: Re: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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support


From: spring <spring-bounces@ietf.org> On Behalf Of bruno.decraene@orange.c=
om
Sent: Thursday, December 19, 2019 11:54 AM
To: SPRING WG <spring@ietf.org>
Subject: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early=
 Allocation Call


Hi SPRING WG,



This begins a 2 week Early Allocation call for a "Ethernet" value from the =
"Protocol Numbers" registry.

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-9.1<https://nam03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2=
F%2Ftools.ietf.org%2Fhtml%2Fdraft-ietf-spring-srv6-network-programming-07%2=
3section-9.1&data=3D02%7C01%7Cjames.n.guichard%40futurewei.com%7C62a2e9f542=
8a4c79ca9408d784a40eff%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C6371237=
12489641935&sdata=3DMLV4imqTyUcsyCr1JxLg%2BpDABulFSiKJEkohz4CsCCw%3D&reserv=
ed=3D0>

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-5.3<https://nam03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2=
F%2Ftools.ietf.org%2Fhtml%2Fdraft-ietf-spring-srv6-network-programming-07%2=
3section-5.3&data=3D02%7C01%7Cjames.n.guichard%40futurewei.com%7C62a2e9f542=
8a4c79ca9408d784a40eff%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C6371237=
12489651928&sdata=3DWEN90JZ2sYUjKH%2B%2BtTtuffPEAvxERbrdTtLeo3C3IAo%3D&rese=
rved=3D0>

https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml<ht=
tps://nam03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fwww.iana.=
org%2Fassignments%2Fprotocol-numbers%2Fprotocol-numbers.xhtml&data=3D02%7C0=
1%7Cjames.n.guichard%40futurewei.com%7C62a2e9f5428a4c79ca9408d784a40eff%7C0=
fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637123712489651928&sdata=3DRxLrh8=
QSktvVfIBGRmYtfUfga4H18kHa6dbR2W3MFsg%3D&reserved=3D0>



In parallel of the Working Group Last Call which is currently running, the =
authors are requesting for early code point allocation from IANA as impleme=
ntations are under way.



The criteria for early allocation are:

   a.  The code points must be from a space designated as "RFC

       Required", "IETF Review", or "Standards Action".  Additionally,

       requests for early assignment of code points from a

       "Specification Required" registry are allowed if the

       specification will be published as an RFC.



   b.  The format, semantics, processing, and other rules related to

       handling the protocol entities defined by the code points

       (henceforth called "specifications") must be adequately described

       in an Internet-Draft.



   c.  The specifications of these code points must be stable; i.e., if

       there is a change, implementations based on the earlier and later

       specifications must be seamlessly interoperable.



   d.  The Working Group chairs and Area Directors (ADs) judge that

       there is sufficient interest in the community for early (pre-RFC)

       implementation and deployment, or that failure to make an early

       allocation might lead to contention for the code point in the

       field.

https://tools.ietf.org/html/rfc7120#section-2<https://nam03.safelinks.prote=
ction.outlook.com/?url=3Dhttps%3A%2F%2Ftools.ietf.org%2Fhtml%2Frfc7120%23se=
ction-2&data=3D02%7C01%7Cjames.n.guichard%40futurewei.com%7C62a2e9f5428a4c7=
9ca9408d784a40eff%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637123712489=
651928&sdata=3DgxtAzhZ0GrTQv7XzSJby39VUi2UJE0ycGJh%2Ffq9GvrE%3D&reserved=3D=
0>



I believe the above conditions are met. (minus the AD judgement which is fu=
rther down in the process)



As a reminder, this topic has mainly been discussed following IETF 105 (Mon=
tr=E9al) both during the meeting and on the mailing list.

During IETF 106 it has been discussed in the IntArea WG. https://datatracke=
r.ietf.org/meeting/106/proceedings#intarea<https://nam03.safelinks.protecti=
on.outlook.com/?url=3Dhttps%3A%2F%2Fdatatracker.ietf.org%2Fmeeting%2F106%2F=
proceedings%23intarea&data=3D02%7C01%7Cjames.n.guichard%40futurewei.com%7C6=
2a2e9f5428a4c79ca9408d784a40eff%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%=
7C637123712489661921&sdata=3DVl3Rqv3MHMFAI3fWpwWN9hSgctf2aT4B%2BlQ23ZOLQV0%=
3D&reserved=3D0>



Note that this code point is not to be specific to SRv6. Depending on AD gu=
idance, this specific code point even be moved from draft-ietf-spring-srv6-=
network-programming into a specific 1 page draft.



If you support early adoption,  please include "support" along with any com=
ments about the draft's technical solution.



If you do not support early allocation, please include "no support" in your=
 email and indicate why.



Thank you,

--Bruno


___________________________________________________________________________=
______________________________________________



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pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler

a l'expediteur et le detruire ainsi que les pieces jointes. Les messages el=
ectroniques etant susceptibles d'alteration,

Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.



This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;

they should not be distributed, used or copied without authorisation.

If you have received this email in error, please notify the sender and dele=
te this message and its attachments.

As emails may be altered, Orange is not liable for messages that have been =
modified, changed or falsified.

Thank you.

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<p class=3D"MsoNormal"><b>From:</b> spring &lt;spring-bounces@ietf.org&gt; =
<b>On Behalf Of
</b>bruno.decraene@orange.com<br>
<b>Sent:</b> Thursday, December 19, 2019 11:54 AM<br>
<b>To:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Subject:</b> [spring] draft-ietf-spring-srv6-network-programming - 2 wee=
k Early Allocation Call<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<pre>Hi SPRING WG,<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>This begins a 2 week Early Allocation call for a &#8220;Ethernet&#8221=
; value from the &quot;Protocol Numbers&quot; registry.<o:p></o:p></pre>
<pre><a href=3D"https://nam03.safelinks.protection.outlook.com/?url=3Dhttps=
%3A%2F%2Ftools.ietf.org%2Fhtml%2Fdraft-ietf-spring-srv6-network-programming=
-07%23section-9.1&amp;data=3D02%7C01%7Cjames.n.guichard%40futurewei.com%7C6=
2a2e9f5428a4c79ca9408d784a40eff%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%=
7C637123712489641935&amp;sdata=3DMLV4imqTyUcsyCr1JxLg%2BpDABulFSiKJEkohz4Cs=
CCw%3D&amp;reserved=3D0">https://tools.ietf.org/html/draft-ietf-spring-srv6=
-network-programming-07#section-9.1</a><o:p></o:p></pre>
<pre><a href=3D"https://nam03.safelinks.protection.outlook.com/?url=3Dhttps=
%3A%2F%2Ftools.ietf.org%2Fhtml%2Fdraft-ietf-spring-srv6-network-programming=
-07%23section-5.3&amp;data=3D02%7C01%7Cjames.n.guichard%40futurewei.com%7C6=
2a2e9f5428a4c79ca9408d784a40eff%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%=
7C637123712489651928&amp;sdata=3DWEN90JZ2sYUjKH%2B%2BtTtuffPEAvxERbrdTtLeo3=
C3IAo%3D&amp;reserved=3D0">https://tools.ietf.org/html/draft-ietf-spring-sr=
v6-network-programming-07#section-5.3</a><o:p></o:p></pre>
<pre><a href=3D"https://nam03.safelinks.protection.outlook.com/?url=3Dhttps=
%3A%2F%2Fwww.iana.org%2Fassignments%2Fprotocol-numbers%2Fprotocol-numbers.x=
html&amp;data=3D02%7C01%7Cjames.n.guichard%40futurewei.com%7C62a2e9f5428a4c=
79ca9408d784a40eff%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C63712371248=
9651928&amp;sdata=3DRxLrh8QSktvVfIBGRmYtfUfga4H18kHa6dbR2W3MFsg%3D&amp;rese=
rved=3D0">https://www.iana.org/assignments/protocol-numbers/protocol-number=
s.xhtml</a><o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>In parallel of the Working Group Last Call which is currently running,=
 the authors are requesting for early code point allocation from IANA as im=
plementations are under way.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>The criteria for early allocation are:<o:p></o:p></pre>
<pre>&nbsp;&nbsp; a.&nbsp; The code points must be from a space designated =
as &quot;RFC<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Required&quot;, &quot;IETF Review=
&quot;, or &quot;Standards Action&quot;.&nbsp; Additionally,<o:p></o:p></pr=
e>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; requests for early assignment of =
code points from a<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &quot;Specification Required&quot=
; registry are allowed if the<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; specification will be published a=
s an RFC.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>&nbsp;&nbsp; b.&nbsp; The format, semantics, processing, and other rul=
es related to<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; handling the protocol entities de=
fined by the code points<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (henceforth called &quot;specific=
ations&quot;) must be adequately described<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in an Internet-Draft.<o:p></o:p><=
/pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>&nbsp;&nbsp; c.&nbsp; The specifications of these code points must be =
stable; i.e., if<o:p></o:p></pre>
<pre>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;there is a change, implementation=
s based on the earlier and later<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; specifications must be seamlessly=
 interoperable.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>&nbsp;&nbsp; d.&nbsp; The Working Group chairs and Area Directors (ADs=
) judge that<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; there is sufficient interest in t=
he community for early (pre-RFC)<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; implementation and deployment, or=
 that failure to make an early<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; allocation might lead to contenti=
on for the code point in the<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; field.<o:p></o:p></pre>
<pre><a href=3D"https://nam03.safelinks.protection.outlook.com/?url=3Dhttps=
%3A%2F%2Ftools.ietf.org%2Fhtml%2Frfc7120%23section-2&amp;data=3D02%7C01%7Cj=
ames.n.guichard%40futurewei.com%7C62a2e9f5428a4c79ca9408d784a40eff%7C0fee8f=
f2a3b240189c753a1d5591fedc%7C1%7C0%7C637123712489651928&amp;sdata=3DgxtAzhZ=
0GrTQv7XzSJby39VUi2UJE0ycGJh%2Ffq9GvrE%3D&amp;reserved=3D0">https://tools.i=
etf.org/html/rfc7120#section-2</a><o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>I believe the above conditions are met. (minus the AD judgement which =
is further down in the process)<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>As a reminder, this topic has mainly been discussed following IETF 105=
 (Montr=E9al) both during the meeting and on the mailing list.<o:p></o:p></=
pre>
<pre>During IETF 106 it has been discussed in the IntArea WG. <a href=3D"ht=
tps://nam03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fdatatrack=
er.ietf.org%2Fmeeting%2F106%2Fproceedings%23intarea&amp;data=3D02%7C01%7Cja=
mes.n.guichard%40futurewei.com%7C62a2e9f5428a4c79ca9408d784a40eff%7C0fee8ff=
2a3b240189c753a1d5591fedc%7C1%7C0%7C637123712489661921&amp;sdata=3DVl3Rqv3M=
HMFAI3fWpwWN9hSgctf2aT4B%2BlQ23ZOLQV0%3D&amp;reserved=3D0">https://datatrac=
ker.ietf.org/meeting/106/proceedings#intarea</a><o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>Note that this code point is not to be specific to SRv6. Depending on =
AD guidance, this specific code point even be moved from draft-ietf-spring-=
srv6-network-programming into a specific 1 page draft.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>If you support early adoption, &nbsp;please include &#8220;support&#82=
21; along with any comments about the draft&#8217;s technical solution.<o:p=
></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>If you do not support early allocation, please include &#8220;no suppo=
rt&#8221; in your email and indicate why.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre><span lang=3D"FR">Thank you,<o:p></o:p></span></pre>
<pre><span lang=3D"FR">--Bruno<o:p></o:p></span></pre>
<p class=3D"MsoNormal"><span lang=3D"FR"><o:p>&nbsp;</o:p></span></p>
<pre><span lang=3D"FR">____________________________________________________=
_____________________________________________________________________<o:p><=
/o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">Ce message et ses pieces jointes peuvent contenir de=
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:p></span></pre>
<pre><span lang=3D"FR">a l'expediteur et le detruire ainsi que les pieces j=
ointes. Les messages electroniques etant susceptibles d'alteration,<o:p></o=
:p></span></pre>
<pre><span lang=3D"FR">Orange decline toute responsabilite si ce message a =
ete altere, deforme ou falsifie. Merci.<o:p></o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">This message and its attachments may contain confide=
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Thread-Topic: RE: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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lor:#333333">
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<span style=3D"color:#333333; font-size:17.0px">Foeget&nbsp;to&nbsp;cc&nbsp=
;to&nbsp;SPRING&nbsp;WG&nbsp;&nbsp;&nbsp;:</span><span style=3D"color:#3333=
33; font-size:17.0px">=A3=A8</span><br>
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<span style=3D"color:#333333; font-size:17.0px">Happy&nbsp;&nbsp;new&nbsp;y=
ear!</span><br>
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<br>
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<hr id=3D"client_signature_separator" style=3D"border-top:dotted 1px">
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<span style=3D"color:#333333; font-size:17.0px">=C0=EE=B3=CA</span><span st=
yle=3D"color:#333333; font-size:17.0px">&nbsp;Cheng&nbsp;Li</span><br>
<span style=3D"color:#333333; font-size:17.0px">Email:&nbsp;<a href=3D"mail=
to:&lt;a href=3D">chengli13@huawei.com</a>&quot;&gt;<a href=3D"mailto:cheng=
li13@huawei.com">chengli13@huawei.com</a></span><br>
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<div name=3D"AnyOffice-Background-Image" style=3D"border-top:1px solid #B5C=
4DF; padding:8px">
<div><b>From: </b>Chengli (Cheng Li)&lt;<a href=3D"mailto:chengli13@huawei.=
com">chengli13@huawei.com</a>&gt;</div>
<div><b>To: </b>bruno.decraene&lt;<a href=3D"mailto:bruno.decraene@orange.c=
om">bruno.decraene@orange.com</a>&gt;</div>
<div><b>Cc: </b>Lizhenbin&lt;<a href=3D"mailto:lizhenbin@huawei.com">lizhen=
bin@huawei.com</a>&gt;</div>
<div><b>Subject: </b>RE: [spring] draft-ietf-spring-srv6-network-programmin=
g - 2 week Early Allocation Call</div>
<div><b>Time: </b>2020-01-03 18:58:26</div>
<br>
</div>
<div>
<div style=3D"font-family:Calibri,Helvetica!important">
<div style=3D"font-family:Calibri,Helvetica!important; font-size:17.0px; co=
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<span style=3D"color:#333333; font-size:17.0px">Yes</span><span style=3D"co=
lor:#333333; font-size:17.0px">,&nbsp;support.</span><span style=3D"color:#=
333333; font-size:17.0px">&nbsp;There&nbsp;are&nbsp;increasingly&nbsp;SRv6&=
nbsp;implementations&nbsp;and&nbsp;deployments&nbsp;in&nbsp;the&nbsp;world,=
&nbsp;earlier&nbsp;the&nbsp;allocation&nbsp;better&nbsp;the&nbsp;products.&=
nbsp;</span><br>
<br>
<span style=3D"color:#333333; font-size:17.0px">Regards,</span><br>
<span style=3D"color:#333333; font-size:17.0px">Cheng&nbsp;Li&nbsp;</span><=
br>
<br>
<span style=3D"color:#333333; font-size:17.0px">
<hr id=3D"client_signature_separator" style=3D"border-top:dotted 1px">
</span><br>
<span style=3D"color:#333333; font-size:17.0px">=C0=EE=B3=CA</span><span st=
yle=3D"color:#333333; font-size:17.0px">&nbsp;Cheng&nbsp;Li</span><br>
<span style=3D"color:#333333; font-size:17.0px">Email:&nbsp;<a href=3D"mail=
to:&lt;a href=3D">chengli13@huawei.com</a>&quot;&gt;<a href=3D"mailto:cheng=
li13@huawei.com">chengli13@huawei.com</a></span><br>
<br>
<br>
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<br>
</div>
<div name=3D"AnyOffice-Background-Image" style=3D"border-top:1px solid #B5C=
4DF; padding:8px">
<div><b>From: </b>bruno.decraene&lt;<a href=3D"mailto:bruno.decraene@orange=
.com">bruno.decraene@orange.com</a>&gt;</div>
<div><b>To: </b>SPRING WG&lt;<a href=3D"mailto:spring@ietf.org">spring@ietf=
.org</a>&gt;</div>
<div><b>Subject: </b>[spring] draft-ietf-spring-srv6-network-programming - =
2 week Early Allocation Call</div>
<div><b>Time: </b>2019-12-20 00:54:44</div>
<br>
</div>
<div>
<div class=3D"WordSection1">
<pre><span lang=3D"EN-US" style=3D"">Hi SPRING WG,</span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">This begins a 2 week Early Allocation =
call for a =A1=B0Ethernet=A1=B1 value from the &quot;Protocol Numbers&quot;=
 registry.</span></pre>
<pre><span lang=3D"EN-US" style=3D""><a href=3D"https://tools.ietf.org/html=
/draft-ietf-spring-srv6-network-programming-07#section-9.1">https://tools.i=
etf.org/html/draft-ietf-spring-srv6-network-programming-07#section-9.1</a><=
/span></pre>
<pre><span lang=3D"EN-US" style=3D""><a href=3D"https://tools.ietf.org/html=
/draft-ietf-spring-srv6-network-programming-07#section-5.3">https://tools.i=
etf.org/html/draft-ietf-spring-srv6-network-programming-07#section-5.3</a><=
/span></pre>
<pre><span lang=3D"EN-US" style=3D""><a href=3D"https://www.iana.org/assign=
ments/protocol-numbers/protocol-numbers.xhtml">https://www.iana.org/assignm=
ents/protocol-numbers/protocol-numbers.xhtml</a></span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">In parallel of the Working Group Last =
Call which is currently running, the authors are requesting for early code =
point allocation from IANA as implementations are under way.</span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">The criteria for early allocation are:=
</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp; </span>a=
.<span style=3D"">&nbsp; </span>The code points must be from a space design=
ated as &quot;RFC</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>Required&quot;, &quot;IETF Review&quot;, or &quot;St=
andards Action&quot;.<span style=3D"">&nbsp; </span>Additionally,</span></p=
re>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>requests for early assignment of code points from a<=
/span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>&quot;Specification Required&quot; registry are allo=
wed if the</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>specification will be published as an RFC.</span></p=
re>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp; </span>b=
.<span style=3D"">&nbsp; </span>The format, semantics, processing, and othe=
r rules related to</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>handling the protocol entities defined by the code p=
oints</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>(henceforth called &quot;specifications&quot;) must =
be adequately described</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>in an Internet-Draft.</span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp; </span>c=
.<span style=3D"">&nbsp; </span>The specifications of these code points mus=
t be stable; i.e., if</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>there is a change, implementations based on the earl=
ier and later</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>specifications must be seamlessly interoperable.</sp=
an></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp; </span>d=
.<span style=3D"">&nbsp; </span>The Working Group chairs and Area Directors=
 (ADs) judge that</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>there is sufficient interest in the community for ea=
rly (pre-RFC)</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>implementation and deployment, or that failure to ma=
ke an early</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>allocation might lead to contention for the code poi=
nt in the</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>field.</span></pre>
<pre><span lang=3D"EN-US" style=3D""><a href=3D"https://tools.ietf.org/html=
/rfc7120#section-2">https://tools.ietf.org/html/rfc7120#section-2</a></span=
></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">I believe the above conditions are met=
. (minus the AD judgement which is further down in the process)</span></pre=
>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">As a reminder, this topic has mainly b=
een discussed following IETF 105 (Montr=A8=A6al) both during the meeting an=
d on the mailing list.</span></pre>
<pre><span lang=3D"EN-US" style=3D"">During IETF 106 it has been discussed =
in the <span class=3D"SpellE">IntArea</span> WG. <a href=3D"https://datatra=
cker.ietf.org/meeting/106/proceedings#intarea">https://datatracker.ietf.org=
/meeting/106/proceedings#intarea</a></span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">Note that this code point is not to be=
 specific to SRv6. Depending on AD guidance, this specific code point even =
be moved from draft-ietf-spring-srv6-network-programming into a specific 1 =
page draft.</span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">If you support early adoption, &nbsp;p=
lease include =A1=B0support=A1=B1 along with any comments about the draft=
=A1=AFs technical solution.</span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">If you do not support early allocation=
, please include =A1=B0no support=A1=B1 in your email and indicate why.</sp=
an></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span class=3D"SpellE">Thank</span> <span class=3D"SpellE">you</span>,=
</pre>
<pre>--Bruno</pre>
<p class=3D"MsoNormal">&nbsp;</p>
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<pre>______________________________________________________________________=
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Subject: Re: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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Support.

Linda Dunbar


From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> On B=
ehalf Of bruno.decraene@orange.com<mailto:bruno.decraene@orange.com>
Sent: Thursday, December 19, 2019 11:54 AM
To: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early=
 Allocation Call


Hi SPRING WG,



This begins a 2 week Early Allocation call for a "Ethernet" value from the =
"Protocol Numbers" registry.

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-9.1<https://nam03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2=
F%2Ftools.ietf.org%2Fhtml%2Fdraft-ietf-spring-srv6-network-programming-07%2=
3section-9.1&data=3D02%7C01%7Clinda.dunbar%40futurewei.com%7C2b3d4216c5634c=
6cc22b08d7903bfeb7%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C63713645968=
7653789&sdata=3Dmonj6Xgn6J%2FWj%2BxIuahXGt3%2F98y5Dyt11c9LTM3Hr%2Fg%3D&rese=
rved=3D0>

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-5.3<https://nam03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2=
F%2Ftools.ietf.org%2Fhtml%2Fdraft-ietf-spring-srv6-network-programming-07%2=
3section-5.3&data=3D02%7C01%7Clinda.dunbar%40futurewei.com%7C2b3d4216c5634c=
6cc22b08d7903bfeb7%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C63713645968=
7653789&sdata=3D64qEwJbzBLCKLZn7KcORV6j1uQiCZ1f8V408Jm75R8U%3D&reserved=3D0=
>

https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml<ht=
tps://nam03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fwww.iana.=
org%2Fassignments%2Fprotocol-numbers%2Fprotocol-numbers.xhtml&data=3D02%7C0=
1%7Clinda.dunbar%40futurewei.com%7C2b3d4216c5634c6cc22b08d7903bfeb7%7C0fee8=
ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637136459687663738&sdata=3DR%2F%2BzBD=
tuswQYvSJtqYQNcyAcNczKAbJguhAzL8n3Kyk%3D&reserved=3D0>



In parallel of the Working Group Last Call which is currently running, the =
authors are requesting for early code point allocation from IANA as impleme=
ntations are under way.



The criteria for early allocation are:

   a.  The code points must be from a space designated as "RFC

       Required", "IETF Review", or "Standards Action".  Additionally,

       requests for early assignment of code points from a

       "Specification Required" registry are allowed if the

       specification will be published as an RFC.



   b.  The format, semantics, processing, and other rules related to

       handling the protocol entities defined by the code points

       (henceforth called "specifications") must be adequately described

       in an Internet-Draft.



   c.  The specifications of these code points must be stable; i.e., if

       there is a change, implementations based on the earlier and later

       specifications must be seamlessly interoperable.



   d.  The Working Group chairs and Area Directors (ADs) judge that

       there is sufficient interest in the community for early (pre-RFC)

       implementation and deployment, or that failure to make an early

       allocation might lead to contention for the code point in the

       field.

https://tools.ietf.org/html/rfc7120#section-2<https://nam03.safelinks.prote=
ction.outlook.com/?url=3Dhttps%3A%2F%2Ftools.ietf.org%2Fhtml%2Frfc7120%23se=
ction-2&data=3D02%7C01%7Clinda.dunbar%40futurewei.com%7C2b3d4216c5634c6cc22=
b08d7903bfeb7%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C6371364596876637=
38&sdata=3D27xnPjT4r8fa5Cu%2FyJ%2BFx%2FK%2F2Id6imhUj0pntQNo16k%3D&reserved=
=3D0>



I believe the above conditions are met. (minus the AD judgement which is fu=
rther down in the process)



As a reminder, this topic has mainly been discussed following IETF 105 (Mon=
tr=E9al) both during the meeting and on the mailing list.

During IETF 106 it has been discussed in the IntArea WG. https://datatracke=
r.ietf.org/meeting/106/proceedings#intarea<https://nam03.safelinks.protecti=
on.outlook.com/?url=3Dhttps%3A%2F%2Fdatatracker.ietf.org%2Fmeeting%2F106%2F=
proceedings%23intarea&data=3D02%7C01%7Clinda.dunbar%40futurewei.com%7C2b3d4=
216c5634c6cc22b08d7903bfeb7%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C63=
7136459687673697&sdata=3DsbRmvnHcBs34Yxdkmyxo61r4f0spJzgbCysWHn9OSMM%3D&res=
erved=3D0>



Note that this code point is not to be specific to SRv6. Depending on AD gu=
idance, this specific code point even be moved from draft-ietf-spring-srv6-=
network-programming into a specific 1 page draft.



If you support early adoption,  please include "support" along with any com=
ments about the draft's technical solution.



If you do not support early allocation, please include "no support" in your=
 email and indicate why.



Thank you,

--Bruno


___________________________________________________________________________=
______________________________________________



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<p class=3D"MsoNormal">Support. <o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Linda Dunbar<o:p></o:p></p>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b>From:</b> spring &lt;<a href=3D"mailto:spring-bou=
nces@ietf.org">spring-bounces@ietf.org</a>&gt;
<b>On Behalf Of </b><a href=3D"mailto:bruno.decraene@orange.com">bruno.decr=
aene@orange.com</a><br>
<b>Sent:</b> Thursday, December 19, 2019 11:54 AM<br>
<b>To:</b> SPRING WG &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org=
</a>&gt;<br>
<b>Subject:</b> [spring] draft-ietf-spring-srv6-network-programming - 2 wee=
k Early Allocation Call<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<pre>Hi SPRING WG,<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>This begins a 2 week Early Allocation call for a &#8220;Ethernet&#8221=
; value from the &quot;Protocol Numbers&quot; registry.<o:p></o:p></pre>
<pre><a href=3D"https://nam03.safelinks.protection.outlook.com/?url=3Dhttps=
%3A%2F%2Ftools.ietf.org%2Fhtml%2Fdraft-ietf-spring-srv6-network-programming=
-07%23section-9.1&amp;data=3D02%7C01%7Clinda.dunbar%40futurewei.com%7C2b3d4=
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r%2Fg%3D&amp;reserved=3D0">https://tools.ietf.org/html/draft-ietf-spring-sr=
v6-network-programming-07#section-9.1</a><o:p></o:p></pre>
<pre><a href=3D"https://nam03.safelinks.protection.outlook.com/?url=3Dhttps=
%3A%2F%2Ftools.ietf.org%2Fhtml%2Fdraft-ietf-spring-srv6-network-programming=
-07%23section-5.3&amp;data=3D02%7C01%7Clinda.dunbar%40futurewei.com%7C2b3d4=
216c5634c6cc22b08d7903bfeb7%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C63=
7136459687653789&amp;sdata=3D64qEwJbzBLCKLZn7KcORV6j1uQiCZ1f8V408Jm75R8U%3D=
&amp;reserved=3D0">https://tools.ietf.org/html/draft-ietf-spring-srv6-netwo=
rk-programming-07#section-5.3</a><o:p></o:p></pre>
<pre><a href=3D"https://nam03.safelinks.protection.outlook.com/?url=3Dhttps=
%3A%2F%2Fwww.iana.org%2Fassignments%2Fprotocol-numbers%2Fprotocol-numbers.x=
html&amp;data=3D02%7C01%7Clinda.dunbar%40futurewei.com%7C2b3d4216c5634c6cc2=
2b08d7903bfeb7%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637136459687663=
738&amp;sdata=3DR%2F%2BzBDtuswQYvSJtqYQNcyAcNczKAbJguhAzL8n3Kyk%3D&amp;rese=
rved=3D0">https://www.iana.org/assignments/protocol-numbers/protocol-number=
s.xhtml</a><o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>In parallel of the Working Group Last Call which is currently running,=
 the authors are requesting for early code point allocation from IANA as im=
plementations are under way.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>The criteria for early allocation are:<o:p></o:p></pre>
<pre>&nbsp;&nbsp; a.&nbsp; The code points must be from a space designated =
as &quot;RFC<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Required&quot;, &quot;IETF Review=
&quot;, or &quot;Standards Action&quot;.&nbsp; Additionally,<o:p></o:p></pr=
e>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; requests for early assignment of =
code points from a<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &quot;Specification Required&quot=
; registry are allowed if the<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; specification will be published a=
s an RFC.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>&nbsp;&nbsp; b.&nbsp; The format, semantics, processing, and other rul=
es related to<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; handling the protocol entities de=
fined by the code points<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (henceforth called &quot;specific=
ations&quot;) must be adequately described<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in an Internet-Draft.<o:p></o:p><=
/pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>&nbsp;&nbsp; c.&nbsp; The specifications of these code points must be =
stable; i.e., if<o:p></o:p></pre>
<pre>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;there is a change, implementation=
s based on the earlier and later<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; specifications must be seamlessly=
 interoperable.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>&nbsp;&nbsp; d.&nbsp; The Working Group chairs and Area Directors (ADs=
) judge that<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; there is sufficient interest in t=
he community for early (pre-RFC)<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; implementation and deployment, or=
 that failure to make an early<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; allocation might lead to contenti=
on for the code point in the<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; field.<o:p></o:p></pre>
<pre><a href=3D"https://nam03.safelinks.protection.outlook.com/?url=3Dhttps=
%3A%2F%2Ftools.ietf.org%2Fhtml%2Frfc7120%23section-2&amp;data=3D02%7C01%7Cl=
inda.dunbar%40futurewei.com%7C2b3d4216c5634c6cc22b08d7903bfeb7%7C0fee8ff2a3=
b240189c753a1d5591fedc%7C1%7C0%7C637136459687663738&amp;sdata=3D27xnPjT4r8f=
a5Cu%2FyJ%2BFx%2FK%2F2Id6imhUj0pntQNo16k%3D&amp;reserved=3D0">https://tools=
.ietf.org/html/rfc7120#section-2</a><o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>I believe the above conditions are met. (minus the AD judgement which =
is further down in the process)<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>As a reminder, this topic has mainly been discussed following IETF 105=
 (Montr=E9al) both during the meeting and on the mailing list.<o:p></o:p></=
pre>
<pre>During IETF 106 it has been discussed in the IntArea WG. <a href=3D"ht=
tps://nam03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fdatatrack=
er.ietf.org%2Fmeeting%2F106%2Fproceedings%23intarea&amp;data=3D02%7C01%7Cli=
nda.dunbar%40futurewei.com%7C2b3d4216c5634c6cc22b08d7903bfeb7%7C0fee8ff2a3b=
240189c753a1d5591fedc%7C1%7C0%7C637136459687673697&amp;sdata=3DsbRmvnHcBs34=
Yxdkmyxo61r4f0spJzgbCysWHn9OSMM%3D&amp;reserved=3D0">https://datatracker.ie=
tf.org/meeting/106/proceedings#intarea</a><o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>Note that this code point is not to be specific to SRv6. Depending on =
AD guidance, this specific code point even be moved from draft-ietf-spring-=
srv6-network-programming into a specific 1 page draft.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>If you support early adoption, &nbsp;please include &#8220;support&#82=
21; along with any comments about the draft&#8217;s technical solution.<o:p=
></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>If you do not support early allocation, please include &#8220;no suppo=
rt&#8221; in your email and indicate why.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre><span lang=3D"FR">Thank you,<o:p></o:p></span></pre>
<pre><span lang=3D"FR">--Bruno<o:p></o:p></span></pre>
<p class=3D"MsoNormal"><span lang=3D"FR"><o:p>&nbsp;</o:p></span></p>
<pre><span lang=3D"FR">____________________________________________________=
_____________________________________________________________________<o:p><=
/o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">Ce message et ses pieces jointes peuvent contenir de=
s informations confidentielles ou privilegiees et ne doivent donc<o:p></o:p=
></span></pre>
<pre><span lang=3D"FR">pas etre diffuses, exploites ou copies sans autorisa=
tion. Si vous avez recu ce message par erreur, veuillez le signaler<o:p></o=
:p></span></pre>
<pre><span lang=3D"FR">a l'expediteur et le detruire ainsi que les pieces j=
ointes. Les messages electroniques etant susceptibles d'alteration,<o:p></o=
:p></span></pre>
<pre><span lang=3D"FR">Orange decline toute responsabilite si ce message a =
ete altere, deforme ou falsifie. Merci.<o:p></o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">This message and its attachments may contain confide=
ntial or privileged information that may be protected by law;<o:p></o:p></s=
pan></pre>
<pre><span lang=3D"FR">they should not be distributed, used or copied witho=
ut authorisation.<o:p></o:p></span></pre>
<pre><span lang=3D"FR">If you have received this email in error, please not=
ify the sender and delete this message and its attachments.<o:p></o:p></spa=
n></pre>
<pre><span lang=3D"FR">As emails may be altered, Orange is not liable for m=
essages that have been modified, changed or falsified.<o:p></o:p></span></p=
re>
<pre><span lang=3D"FR">Thank you.<o:p></o:p></span></pre>
</div>
</body>
</html>

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Subject: Re: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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I support


From: spring <spring-bounces@ietf.org mailto:spring-bounces@ietf.org > On B=
ehalf Of bruno.decraene@orange.com mailto:bruno.decraene@orange.com
Sent: Thursday, December 19, 2019 11:54 AM
To: SPRING WG <spring@ietf.org mailto:spring@ietf.org >
Subject: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early=
 Allocation Call



Hi SPRING WG,






This begins a 2 week Early Allocation call for a =E2=80=9CEthernet=E2=80=9D=
 value from the "Protocol Numbers" registry.


https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-9.1 https://nam03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2=
F%2Ftools.ietf.org%2Fhtml%2Fdraft-ietf-spring-srv6-network-programming-07%2=
3section-9.1&data=3D02%7C01%7Clinda.dunbar%40futurewei.com%7C2b3d4216c5634c=
6cc22b08d7903bfeb7%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C63713645968=
7653789&sdata=3Dmonj6Xgn6J%2FWj%2BxIuahXGt3%2F98y5Dyt11c9LTM3Hr%2Fg%3D&rese=
rved=3D0


https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-5.3 https://nam03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2=
F%2Ftools.ietf.org%2Fhtml%2Fdraft-ietf-spring-srv6-network-programming-07%2=
3section-5.3&data=3D02%7C01%7Clinda.dunbar%40futurewei.com%7C2b3d4216c5634c=
6cc22b08d7903bfeb7%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C63713645968=
7653789&sdata=3D64qEwJbzBLCKLZn7KcORV6j1uQiCZ1f8V408Jm75R8U%3D&reserved=3D0


https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml ht=
tps://nam03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fwww.iana.=
org%2Fassignments%2Fprotocol-numbers%2Fprotocol-numbers.xhtml&data=3D02%7C0=
1%7Clinda.dunbar%40futurewei.com%7C2b3d4216c5634c6cc22b08d7903bfeb7%7C0fee8=
ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637136459687663738&sdata=3DR%2F%2BzBD=
tuswQYvSJtqYQNcyAcNczKAbJguhAzL8n3Kyk%3D&reserved=3D0






In parallel of the Working Group Last Call which is currently running, the =
authors are requesting for early code point allocation from IANA as impleme=
ntations are under way.






The criteria for early allocation are:


a.  The code points must be from a space designated as "RFC


Required", "IETF Review", or "Standards Action".  Additionally,


requests for early assignment of code points from a


"Specification Required" registry are allowed if the


specification will be published as an RFC.






b.  The format, semantics, processing, and other rules related to


handling the protocol entities defined by the code points


(henceforth called "specifications") must be adequately described


in an Internet-Draft.






c.  The specifications of these code points must be stable; i.e., if


there is a change, implementations based on the earlier and later


specifications must be seamlessly interoperable.






d.  The Working Group chairs and Area Directors (ADs) judge that


there is sufficient interest in the community for early (pre-RFC)


implementation and deployment, or that failure to make an early


allocation might lead to contention for the code point in the


field.


https://tools..ietf.org/html/rfc7120#section-2 https://nam03.safelinks.prot=
ection.outlook.com/?url=3Dhttps%3A%2F%2Ftools.ietf.org%2Fhtml%2Frfc7120%23s=
ection-2&data=3D02%7C01%7Clinda.dunbar%40futurewei.com%7C2b3d4216c5634c6cc2=
2b08d7903bfeb7%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637136459687663=
738&sdata=3D27xnPjT4r8fa5Cu%2FyJ%2BFx%2FK%2F2Id6imhUj0pntQNo16k%3D&reserved=
=3D0






I believe the above conditions are met. (minus the AD judgement which is fu=
rther down in the process)






As a reminder, this topic has mainly been discussed following IETF 105 (Mon=
tr=C3=A9al) both during the meeting and on the mailing list.


During IETF 106 it has been discussed in the IntArea WG. https://datatracke=
r.ietf.org/meeting/106/proceedings#intarea https://nam03.safelinks.protecti=
on.outlook.com/?url=3Dhttps%3A%2F%2Fdatatracker.ietf.org%2Fmeeting%2F106%2F=
proceedings%23intarea&data=3D02%7C01%7Clinda.dunbar%40futurewei.com%7C2b3d4=
216c5634c6cc22b08d7903bfeb7%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C63=
7136459687673697&sdata=3DsbRmvnHcBs34Yxdkmyxo61r4f0spJzgbCysWHn9OSMM%3D&res=
erved=3D0






Note that this code point is not to be specific to SRv6. Depending on AD gu=
idance, this specific code point even be moved from draft-ietf-spring-srv6-=
network-programming into a specific 1 page draft.






If you support early adoption,  please include =E2=80=9Csupport=E2=80=9D al=
ong with any comments about the draft=E2=80=99s technical solution.






If you do not support early allocation, please include =E2=80=9Cno support=
=E2=80=9D in your email and indicate why.






Thank you,


--Bruno




___________________________________________________________________________=
______________________________________________






Ce message et ses pieces jointes peuvent contenir des informations confiden=
tielles ou privilegiees et ne doivent donc


pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler


a l'expediteur et le detruire ainsi que les pieces jointes. Les messages el=
ectroniques etant susceptibles d'alteration,


Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.






This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;


they should not be distributed, used or copied without authorisation.


If you have received this email in error, please notify the sender and dele=
te this message and its attachments.


As emails may be altered, Orange is not liable for messages that have been =
modified, changed or falsified.


Thank you.


_______________________________________________
spring mailing list
spring@ietf.org
https://www.ietf.org/mailman/listinfo/spring


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<!doctype html>
<html>
 <head>=20
  <meta charset=3D"UTF-8">=20
 </head>
 <body>
  <div class=3D"default-style">
   <div class=3D"ox-915d61717a-WordSection1">
    <p class=3D"ox-915d61717a-MsoNormal"></p>
    <p class=3D"ox-915d61717a-MsoNormal">I support</p>
    <p class=3D"ox-915d61717a-MsoNormal"><br></p>
    <div>
     <div style=3D"border: none; border-top: solid #E1E1E1 1.0pt; padding: =
3.0pt 0in 0in 0in;">
      <p class=3D"ox-915d61717a-MsoNormal"><strong>From:</strong> spring &l=
t;<a href=3D"mailto:spring-bounces@ietf.org">spring-bounces@ietf.org</a>&gt=
; <strong>On Behalf Of </strong><a href=3D"mailto:bruno.decraene@orange.com=
">bruno.decraene@orange.com</a><br> <strong>Sent:</strong> Thursday, Decemb=
er 19, 2019 11:54 AM<br> <strong>To:</strong> SPRING WG &lt;<a href=3D"mail=
to:spring@ietf.org">spring@ietf.org</a>&gt;<br> <strong>Subject:</strong> [=
spring] draft-ietf-spring-srv6-network-programming - 2 week Early Allocatio=
n Call</p>
     </div>
    </div>
    <p class=3D"ox-915d61717a-MsoNormal">&nbsp;</p>
    <pre>Hi SPRING WG,
    </pre>
    <pre>   =20
     &nbsp;
    </pre>
    <pre>This begins a 2 week Early Allocation call for a =E2=80=9CEthernet=
=E2=80=9D value from the "Protocol Numbers" registry.
    </pre>
    <pre><a href=3D"https://nam03.safelinks.protection.outlook.com/?url=3Dh=
ttps%3A%2F%2Ftools.ietf.org%2Fhtml%2Fdraft-ietf-spring-srv6-network-program=
ming-07%23section-9.1&amp;data=3D02%7C01%7Clinda.dunbar%40futurewei.com%7C2=
b3d4216c5634c6cc22b08d7903bfeb7%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%=
7C637136459687653789&amp;sdata=3Dmonj6Xgn6J%2FWj%2BxIuahXGt3%2F98y5Dyt11c9L=
TM3Hr%2Fg%3D&amp;reserved=3D0">https://tools.ietf.org/html/draft-ietf-sprin=
g-srv6-network-programming-07#section-9.1</a>
    </pre>
    <pre><a href=3D"https://nam03.safelinks.protection.outlook.com/?url=3Dh=
ttps%3A%2F%2Ftools.ietf.org%2Fhtml%2Fdraft-ietf-spring-srv6-network-program=
ming-07%23section-5.3&amp;data=3D02%7C01%7Clinda.dunbar%40futurewei.com%7C2=
b3d4216c5634c6cc22b08d7903bfeb7%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%=
7C637136459687653789&amp;sdata=3D64qEwJbzBLCKLZn7KcORV6j1uQiCZ1f8V408Jm75R8=
U%3D&amp;reserved=3D0">https://tools.ietf.org/html/draft-ietf-spring-srv6-n=
etwork-programming-07#section-5.3</a>
    </pre>
    <pre><a href=3D"https://nam03.safelinks.protection.outlook.com/?url=3Dh=
ttps%3A%2F%2Fwww.iana.org%2Fassignments%2Fprotocol-numbers%2Fprotocol-numbe=
rs.xhtml&amp;data=3D02%7C01%7Clinda.dunbar%40futurewei.com%7C2b3d4216c5634c=
6cc22b08d7903bfeb7%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C63713645968=
7663738&amp;sdata=3DR%2F%2BzBDtuswQYvSJtqYQNcyAcNczKAbJguhAzL8n3Kyk%3D&amp;=
reserved=3D0">https://www.iana.org/assignments/protocol-numbers/protocol-nu=
mbers.xhtml</a>
    </pre>
    <pre>   =20
     &nbsp;
    </pre>
    <pre>In parallel of the Working Group Last Call which is currently runn=
ing, the authors are requesting for early code point allocation from IANA a=
s implementations are under way.
    </pre>
    <pre>   =20
     &nbsp;
    </pre>
    <pre>The criteria for early allocation are:
    </pre>
    <pre>&nbsp;&nbsp; a.&nbsp; The code points must be from a space designa=
ted as "RFC
    </pre>
    <pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Required", "IETF Review", or =
"Standards Action".&nbsp; Additionally,
    </pre>
    <pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; requests for early assignment=
 of code points from a
    </pre>
    <pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "Specification Required" regi=
stry are allowed if the
    </pre>
    <pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; specification will be publish=
ed as an RFC.
    </pre>
    <pre>   =20
     &nbsp;
    </pre>
    <pre>&nbsp;&nbsp; b.&nbsp; The format, semantics, processing, and other=
 rules related to
    </pre>
    <pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; handling the protocol entitie=
s defined by the code points
    </pre>
    <pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (henceforth called "specifica=
tions") must be adequately described
    </pre>
    <pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in an Internet-Draft.
    </pre>
    <pre>   =20
     &nbsp;
    </pre>
    <pre>&nbsp;&nbsp; c.&nbsp; The specifications of these code points must=
 be stable; i.e., if
    </pre>
    <pre>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;there is a change, implementa=
tions based on the earlier and later
    </pre>
    <pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; specifications must be seamle=
ssly interoperable.
    </pre>
    <pre>   =20
     &nbsp;
    </pre>
    <pre>&nbsp;&nbsp; d.&nbsp; The Working Group chairs and Area Directors =
(ADs) judge that
    </pre>
    <pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; there is sufficient interest =
in the community for early (pre-RFC)
    </pre>
    <pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; implementation and deployment=
, or that failure to make an early
    </pre>
    <pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; allocation might lead to cont=
ention for the code point in the
    </pre>
    <pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; field.
    </pre>
    <pre><a href=3D"https://nam03.safelinks.protection.outlook.com/?url=3Dh=
ttps%3A%2F%2Ftools.ietf.org%2Fhtml%2Frfc7120%23section-2&amp;data=3D02%7C01=
%7Clinda.dunbar%40futurewei.com%7C2b3d4216c5634c6cc22b08d7903bfeb7%7C0fee8f=
f2a3b240189c753a1d5591fedc%7C1%7C0%7C637136459687663738&amp;sdata=3D27xnPjT=
4r8fa5Cu%2FyJ%2BFx%2FK%2F2Id6imhUj0pntQNo16k%3D&amp;reserved=3D0">https://t=
ools..ietf.org/html/rfc7120#section-2</a>
    </pre>
    <pre>   =20
     &nbsp;
    </pre>
    <pre>I believe the above conditions are met. (minus the AD judgement wh=
ich is further down in the process)
    </pre>
    <pre>   =20
     &nbsp;
    </pre>
    <pre>As a reminder, this topic has mainly been discussed following IETF=
 105 (Montr=C3=A9al) both during the meeting and on the mailing list.
    </pre>
    <pre>During IETF 106 it has been discussed in the IntArea WG. <a href=
=3D"https://nam03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fdat=
atracker.ietf.org%2Fmeeting%2F106%2Fproceedings%23intarea&amp;data=3D02%7C0=
1%7Clinda.dunbar%40futurewei.com%7C2b3d4216c5634c6cc22b08d7903bfeb7%7C0fee8=
ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637136459687673697&amp;sdata=3DsbRmvn=
HcBs34Yxdkmyxo61r4f0spJzgbCysWHn9OSMM%3D&amp;reserved=3D0">https://datatrac=
ker.ietf.org/meeting/106/proceedings#intarea</a>
    </pre>
    <pre>   =20
     &nbsp;
    </pre>
    <pre>Note that this code point is not to be specific to SRv6. Depending=
 on AD guidance, this specific code point even be moved from draft-ietf-spr=
ing-srv6-network-programming into a specific 1 page draft.
    </pre>
    <pre>   =20
     &nbsp;
    </pre>
    <pre>If you support early adoption, &nbsp;please include =E2=80=9Csuppo=
rt=E2=80=9D along with any comments about the draft=E2=80=99s technical sol=
ution.
    </pre>
    <pre>   =20
     &nbsp;
    </pre>
    <pre>If you do not support early allocation, please include =E2=80=9Cno=
 support=E2=80=9D in your email and indicate why.
    </pre>
    <pre>   =20
     &nbsp;
    </pre>
    <pre>Thank you,
     </pre>
    <pre>--Bruno
     </pre>
    <p class=3D"ox-915d61717a-MsoNormal">&nbsp;</p>
    <pre>__________________________________________________________________=
_______________________________________________________
     </pre>
    <pre>    =20
      &nbsp;
     </pre>
    <pre>Ce message et ses pieces jointes peuvent contenir des informations=
 confidentielles ou privilegiees et ne doivent donc
     </pre>
    <pre>pas etre diffuses, exploites ou copies sans autorisation. Si vous =
avez recu ce message par erreur, veuillez le signaler
     </pre>
    <pre>a l'expediteur et le detruire ainsi que les pieces jointes. Les me=
ssages electroniques etant susceptibles d'alteration,
     </pre>
    <pre>Orange decline toute responsabilite si ce message a ete altere, de=
forme ou falsifie. Merci.
     </pre>
    <pre>    =20
      &nbsp;
     </pre>
    <pre>This message and its attachments may contain confidential or privi=
leged information that may be protected by law;
     </pre>
    <pre>they should not be distributed, used or copied without authorisati=
on.
     </pre>
    <pre>If you have received this email in error, please notify the sender=
 and delete this message and its attachments.
     </pre>
    <pre>As emails may be altered, Orange is not liable for messages that h=
ave been modified, changed or falsified.
     </pre>
    <pre>Thank you.
     </pre>
   </div>_______________________________________________=20
   <br>spring mailing list=20
   <br>spring@ietf.org=20
   <br>https://www.ietf.org/mailman/listinfo/spring=20
   <br>
  </div>
  <div class=3D"default-style">
   <br>&nbsp;
  </div>=20
 </body>
</html>
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Subject: Re: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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Support

Sent from my iPhone

> On Dec 19, 2019, at 8:54 AM, bruno.decraene@orange.com wrote:
>=20
> =EF=BB=BF
> Hi SPRING WG,
> =20
> This begins a 2 week Early Allocation call for a =E2=80=9CEthernet=E2=80=9D=
 value from the "Protocol Numbers" registry.
> https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#=
section-9.1
> https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#=
section-5.3
> https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml
> =20
> In parallel of the Working Group Last Call which is currently running, the=
 authors are requesting for early code point allocation from IANA as impleme=
ntations are under way.
> =20
> The criteria for early allocation are:
>    a.  The code points must be from a space designated as "RFC
>        Required", "IETF Review", or "Standards Action".  Additionally,
>        requests for early assignment of code points from a
>        "Specification Required" registry are allowed if the
>        specification will be published as an RFC.
> =20
>    b.  The format, semantics, processing, and other rules related to
>        handling the protocol entities defined by the code points
>        (henceforth called "specifications") must be adequately described
>        in an Internet-Draft.
> =20
>    c.  The specifications of these code points must be stable; i.e., if
>        there is a change, implementations based on the earlier and later
>        specifications must be seamlessly interoperable.
> =20
>    d.  The Working Group chairs and Area Directors (ADs) judge that
>        there is sufficient interest in the community for early (pre-RFC)
>        implementation and deployment, or that failure to make an early
>        allocation might lead to contention for the code point in the
>        field.
> https://tools.ietf.org/html/rfc7120#section-2
> =20
> I believe the above conditions are met. (minus the AD judgement which is f=
urther down in the process)
> =20
> As a reminder, this topic has mainly been discussed following IETF 105 (Mo=
ntr=C3=A9al) both during the meeting and on the mailing list.
> During IETF 106 it has been discussed in the IntArea WG. https://datatrack=
er.ietf.org/meeting/106/proceedings#intarea
> =20
> Note that this code point is not to be specific to SRv6. Depending on AD g=
uidance, this specific code point even be moved from draft-ietf-spring-srv6-=
network-programming into a specific 1 page draft.
> =20
> If you support early adoption,  please include =E2=80=9Csupport=E2=80=9D a=
long with any comments about the draft=E2=80=99s technical solution.
> =20
> If you do not support early allocation, please include =E2=80=9Cno support=
=E2=80=9D in your email and indicate why.
> =20
> Thank you,
> --Bruno
> =20
> __________________________________________________________________________=
_______________________________________________
>=20
> Ce message et ses pieces jointes peuvent contenir des informations confide=
ntielles ou privilegiees et ne doivent donc
> pas etre diffuses, exploites ou copies sans autorisation. Si vous avez rec=
u ce message par erreur, veuillez le signaler
> a l'expediteur et le detruire ainsi que les pieces jointes. Les messages e=
lectroniques etant susceptibles d'alteration,
> Orange decline toute responsabilite si ce message a ete altere, deforme ou=
 falsifie. Merci.
>=20
> This message and its attachments may contain confidential or privileged in=
formation that may be protected by law;
> they should not be distributed, used or copied without authorisation.
> If you have received this email in error, please notify the sender and del=
ete this message and its attachments.
> As emails may be altered, Orange is not liable for messages that have been=
 modified, changed or falsified.
> Thank you.
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring

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y iPhone</div><div dir=3D"ltr"><br><blockquote type=3D"cite">On Dec 19, 2019=
, at 8:54 AM, bruno.decraene@orange.com wrote:<br><br></blockquote></div><bl=
ockquote type=3D"cite"><div dir=3D"ltr">=EF=BB=BF

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<div class=3D"WordSection1">
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">Hi SPRING WG,<o:=
p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p=
></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">This begins a 2 w=
eek Early Allocation call for a =E2=80=9CEthernet=E2=80=9D value from the "P=
rotocol Numbers" registry.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><a href=3D"https=
://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#section=
-9.1">https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming=
-07#section-9.1</a><o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><a href=3D"https=
://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#section=
-5.3">https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming=
-07#section-5.3</a><o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><a href=3D"https=
://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml">https:/=
/www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml</a><o:p></=
o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p=
></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">In parallel of t=
he Working Group Last Call which is currently running, the authors are reque=
sting for early code point allocation from IANA as implementations are under=
 way.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p=
></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">The criteria for=
 early allocation are:<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><span style=3D"m=
so-spacerun:yes">&nbsp;&nbsp; </span>a.<span style=3D"mso-spacerun:yes">&nbs=
p; </span>The code points must be from a space designated as "RFC<o:p></o:p>=
</span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><span style=3D"m=
so-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>Required", "IET=
F Review", or "Standards Action".<span style=3D"mso-spacerun:yes">&nbsp; </s=
pan>Additionally,<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><span style=3D"m=
so-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>requests for ea=
rly assignment of code points from a<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><span style=3D"m=
so-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>"Specification R=
equired" registry are allowed if the<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><span style=3D"m=
so-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>specification w=
ill be published as an RFC.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p=
></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><span style=3D"m=
so-spacerun:yes">&nbsp;&nbsp; </span>b.<span style=3D"mso-spacerun:yes">&nbs=
p; </span>The format, semantics, processing, and other rules related to<o:p>=
</o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><span style=3D"m=
so-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>handling the pr=
otocol entities defined by the code points<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><span style=3D"m=
so-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>(henceforth cal=
led "specifications") must be adequately described<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><span style=3D"m=
so-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>in an Internet-=
Draft.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p=
></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><span style=3D"m=
so-spacerun:yes">&nbsp;&nbsp; </span>c.<span style=3D"mso-spacerun:yes">&nbs=
p; </span>The specifications of these code points must be stable; i.e., if<o=
:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><span style=3D"m=
so-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>there is a chan=
ge, implementations based on the earlier and later<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><span style=3D"m=
so-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>specifications m=
ust be seamlessly interoperable.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p=
></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><span style=3D"m=
so-spacerun:yes">&nbsp;&nbsp; </span>d.<span style=3D"mso-spacerun:yes">&nbs=
p; </span>The Working Group chairs and Area Directors (ADs) judge that<o:p><=
/o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><span style=3D"m=
so-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>there is suffic=
ient interest in the community for early (pre-RFC)<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><span style=3D"m=
so-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>implementation a=
nd deployment, or that failure to make an early<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><span style=3D"m=
so-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>allocation migh=
t lead to contention for the code point in the<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><span style=3D"m=
so-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>field.<o:p></o:=
p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><a href=3D"https=
://tools.ietf.org/html/rfc7120#section-2">https://tools.ietf.org/html/rfc712=
0#section-2</a><o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p=
></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">I believe the ab=
ove conditions are met. (minus the AD judgement which is further down in the=
 process)<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p=
></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">As a reminder, t=
his topic has mainly been discussed following IETF 105 (Montr=C3=A9al) both d=
uring the meeting and on the mailing list.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">During IETF 106 i=
t has been discussed in the <span class=3D"SpellE">IntArea</span> WG. <a hre=
f=3D"https://datatracker.ietf.org/meeting/106/proceedings#intarea">https://d=
atatracker.ietf.org/meeting/106/proceedings#intarea</a><o:p></o:p></span></p=
re>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p=
></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">Note that this c=
ode point is not to be specific to SRv6. Depending on AD guidance, this spec=
ific code point even be moved from draft-ietf-spring-srv6-network-programmin=
g into a specific 1 page draft.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p=
></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">If you support e=
arly adoption, &nbsp;please include =E2=80=9Csupport=E2=80=9D along with any=
 comments about the draft=E2=80=99s technical solution.<o:p></o:p></span></p=
re>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p=
></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">If you do not su=
pport early allocation, please include =E2=80=9Cno support=E2=80=9D in your e=
mail and indicate why.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p=
></span></pre>
<pre><span class=3D"SpellE">Thank</span> <span class=3D"SpellE">you</span>,<=
o:p></o:p></pre>
<pre>--Bruno<o:p></o:p></pre>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
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To: "Atre, Avadhut" <aatre@blueplanet.com>, "draft-ietf-spring-segment-routing-policy@ietf.org" <draft-ietf-spring-segment-routing-policy@ietf.org>
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From: Satoru Matsushima <satoru.matsushima@gmail.com>
Date: Sat, 4 Jan 2020 12:03:26 +0900
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To: Bruno Decraene <bruno.decraene@orange.com>
Cc: SPRING WG List <spring@ietf.org>
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Subject: Re: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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Support.

2019=E5=B9=B412=E6=9C=8820=E6=97=A5(=E9=87=91) 1:54 <bruno.decraene@orange.=
com>:

> Hi SPRING WG,
>
>
>
> This begins a 2 week Early Allocation call for a =E2=80=9CEthernet=E2=80=
=9D value from the "Protocol Numbers" registry.
>
> https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07=
#section-9.1
>
> https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07=
#section-5.3
>
> https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml
>
>
>
> In parallel of the Working Group Last Call which is currently running, th=
e authors are requesting for early code point allocation from IANA as imple=
mentations are under way.
>
>
>
> The criteria for early allocation are:
>
>    a.  The code points must be from a space designated as "RFC
>
>        Required", "IETF Review", or "Standards Action".  Additionally,
>
>        requests for early assignment of code points from a
>
>        "Specification Required" registry are allowed if the
>
>        specification will be published as an RFC.
>
>
>
>    b.  The format, semantics, processing, and other rules related to
>
>        handling the protocol entities defined by the code points
>
>        (henceforth called "specifications") must be adequately described
>
>        in an Internet-Draft.
>
>
>
>    c.  The specifications of these code points must be stable; i.e., if
>
>        there is a change, implementations based on the earlier and later
>
>        specifications must be seamlessly interoperable.
>
>
>
>    d.  The Working Group chairs and Area Directors (ADs) judge that
>
>        there is sufficient interest in the community for early (pre-RFC)
>
>        implementation and deployment, or that failure to make an early
>
>        allocation might lead to contention for the code point in the
>
>        field.
>
> https://tools.ietf.org/html/rfc7120#section-2
>
>
>
> I believe the above conditions are met. (minus the AD judgement which is =
further down in the process)
>
>
>
> As a reminder, this topic has mainly been discussed following IETF 105 (M=
ontr=C3=A9al) both during the meeting and on the mailing list.
>
> During IETF 106 it has been discussed in the IntArea WG. https://datatrac=
ker.ietf.org/meeting/106/proceedings#intarea
>
>
>
> Note that this code point is not to be specific to SRv6. Depending on AD =
guidance, this specific code point even be moved from draft-ietf-spring-srv=
6-network-programming into a specific 1 page draft.
>
>
>
> If you support early adoption,  please include =E2=80=9Csupport=E2=80=9D =
along with any comments about the draft=E2=80=99s technical solution.
>
>
>
> If you do not support early allocation, please include =E2=80=9Cno suppor=
t=E2=80=9D in your email and indicate why.
>
>
>
> Thank you,
>
> --Bruno
>
>
>
> _________________________________________________________________________=
________________________________________________
>
> Ce message et ses pieces jointes peuvent contenir des informations confid=
entielles ou privilegiees et ne doivent donc
> pas etre diffuses, exploites ou copies sans autorisation. Si vous avez re=
cu ce message par erreur, veuillez le signaler
> a l'expediteur et le detruire ainsi que les pieces jointes. Les messages =
electroniques etant susceptibles d'alteration,
> Orange decline toute responsabilite si ce message a ete altere, deforme o=
u falsifie. Merci.
>
> This message and its attachments may contain confidential or privileged i=
nformation that may be protected by law;
> they should not be distributed, used or copied without authorisation.
> If you have received this email in error, please notify the sender and de=
lete this message and its attachments.
> As emails may be altered, Orange is not liable for messages that have bee=
n modified, changed or falsified.
> Thank you.
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

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<div dir=3D"auto">Support.</div><br><div class=3D"gmail_quote"><div dir=3D"=
ltr" class=3D"gmail_attr">2019=E5=B9=B412=E6=9C=8820=E6=97=A5(=E9=87=91) 1:=
54  &lt;<a href=3D"mailto:bruno.decraene@orange.com">bruno.decraene@orange.=
com</a>&gt;:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0 0=
 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">







<div lang=3D"FR" link=3D"blue" vlink=3D"purple">
<div>
<pre><span lang=3D"EN-US">Hi SPRING WG,<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">This begins a 2 week Early Allocation call for a =
=E2=80=9CEthernet=E2=80=9D value from the &quot;Protocol Numbers&quot; regi=
stry.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-07#section-9.1" target=3D"_blank" rel=3D"n=
oreferrer">https://tools.ietf.org/html/draft-ietf-spring-srv6-network-progr=
amming-07#section-9.1</a><u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-07#section-5.3" target=3D"_blank" rel=3D"n=
oreferrer">https://tools.ietf.org/html/draft-ietf-spring-srv6-network-progr=
amming-07#section-5.3</a><u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://www.iana.org/assignments/proto=
col-numbers/protocol-numbers.xhtml" target=3D"_blank" rel=3D"noreferrer">ht=
tps://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml</a><=
u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">In parallel of the Working Group Last Call which =
is currently running, the authors are requesting for early code point alloc=
ation from IANA as implementations are under way.<u></u><u></u></span></pre=
>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">The criteria for early allocation are:<u></u><u><=
/u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0 </span>a.<span>=C2=A0 </span>T=
he code points must be from a space designated as &quot;RFC<u></u><u></u></=
span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>Required&quot;, &quot;IETF Review&quot;, or &quot;Standards Action&quot;.<=
span>=C2=A0 </span>Additionally,<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>requests for early assignment of code points from a<u></u><u></u></span></=
pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>&quot;Specification Required&quot; registry are allowed if the<u></u><u></=
u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>specification will be published as an RFC.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0 </span>b.<span>=C2=A0 </span>T=
he format, semantics, processing, and other rules related to<u></u><u></u><=
/span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>handling the protocol entities defined by the code points<u></u><u></u></s=
pan></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>(henceforth called &quot;specifications&quot;) must be adequately describe=
d<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>in an Internet-Draft.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0 </span>c.<span>=C2=A0 </span>T=
he specifications of these code points must be stable; i.e., if<u></u><u></=
u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>there is a change, implementations based on the earlier and later<u></u><u=
></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>specifications must be seamlessly interoperable.<u></u><u></u></span></pre=
>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0 </span>d.<span>=C2=A0 </span>T=
he Working Group chairs and Area Directors (ADs) judge that<u></u><u></u></=
span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>there is sufficient interest in the community for early (pre-RFC)<u></u><u=
></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>implementation and deployment, or that failure to make an early<u></u><u><=
/u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>allocation might lead to contention for the code point in the<u></u><u></u=
></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>field.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/rfc7120#se=
ction-2" target=3D"_blank" rel=3D"noreferrer">https://tools.ietf.org/html/r=
fc7120#section-2</a><u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">I believe the above conditions are met. (minus th=
e AD judgement which is further down in the process)<u></u><u></u></span></=
pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">As a reminder, this topic has mainly been discuss=
ed following IETF 105 (Montr=C3=A9al) both during the meeting and on the ma=
iling list.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US">During IETF 106 it has been discussed in the <spa=
n>IntArea</span> WG. <a href=3D"https://datatracker.ietf.org/meeting/106/pr=
oceedings#intarea" target=3D"_blank" rel=3D"noreferrer">https://datatracker=
.ietf.org/meeting/106/proceedings#intarea</a><u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">Note that this code point is not to be specific t=
o SRv6. Depending on AD guidance, this specific code point even be moved fr=
om draft-ietf-spring-srv6-network-programming into a specific 1 page draft.=
<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">If you support early adoption, =C2=A0please inclu=
de =E2=80=9Csupport=E2=80=9D along with any comments about the draft=E2=80=
=99s technical solution.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">If you do not support early allocation, please in=
clude =E2=80=9Cno support=E2=80=9D in your email and indicate why.<u></u><u=
></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span>Thank</span> <span>you</span>,<u></u><u></u></pre>
<pre>--Bruno<u></u><u></u></pre>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<pre>______________________________________________________________________=
___________________________________________________

Ce message et ses pieces jointes peuvent contenir des informations confiden=
tielles ou privilegiees et ne doivent donc
pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler
a l&#39;expediteur et le detruire ainsi que les pieces jointes. Les message=
s electroniques etant susceptibles d&#39;alteration,
Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.

This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;
they should not be distributed, used or copied without authorisation.
If you have received this email in error, please notify the sender and dele=
te this message and its attachments.
As emails may be altered, Orange is not liable for messages that have been =
modified, changed or falsified.
Thank you.
</pre></div>

_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank" rel=3D"noreferrer">spr=
ing@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer =
noreferrer" target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring<=
/a><br>
</blockquote></div>

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References: <18437_1576774434_5DFBAB22_18437_317_31_53C29892C857584299CBF5D05346208A48D392D1@OPEXCAUBM43.corporate.adroot.infra.ftgroup> <19AB2A007F56DB4E8257F949A2FB9858E5E99B70@NKGEML515-MBX.china.huawei.com>
In-Reply-To: <19AB2A007F56DB4E8257F949A2FB9858E5E99B70@NKGEML515-MBX.china.huawei.com>
From: Gyan Mishra <hayabusagsm@gmail.com>
Date: Fri, 3 Jan 2020 23:15:34 -0500
Message-ID: <CABNhwV2GvZHe4AFg45i9kjy6aTEi47hrjtkukwbjSTgdNo0yTg@mail.gmail.com>
To: Zhuangshunwan <zhuangshunwan@huawei.com>
Cc: SPRING WG <spring@ietf.org>,  "bruno.decraene@orange.com" <bruno.decraene@orange.com>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/eD-UKYAHj4CneFJe-ZMR4hjqhB4>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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I support early allocation as their are many IPv6 deployments around the
world.

Gyan

On Thu, Jan 2, 2020 at 11:00 PM Zhuangshunwan <zhuangshunwan@huawei.com>
wrote:

> I support this early allocation.
>
>
>
> Thanks,
>
> Shunwan
>
>
>
> *From:* spring [mailto:spring-bounces@ietf.org] *On Behalf Of *
> bruno.decraene@orange.com
> *Sent:* Friday, December 20, 2019 12:54 AM
> *To:* SPRING WG <spring@ietf.org>
> *Subject:* [spring] draft-ietf-spring-srv6-network-programming - 2 week
> Early Allocation Call
>
>
>
> Hi SPRING WG,
>
>
>
> This begins a 2 week Early Allocation call for a =E2=80=9CEthernet=E2=80=
=9D value from the "Protocol Numbers" registry.
>
> https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07=
#section-9.1
>
> https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07=
#section-5.3
>
> https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml
>
>
>
> In parallel of the Working Group Last Call which is currently running, th=
e authors are requesting for early code point allocation from IANA as imple=
mentations are under way.
>
>
>
> The criteria for early allocation are:
>
>    a.  The code points must be from a space designated as "RFC
>
>        Required", "IETF Review", or "Standards Action".  Additionally,
>
>        requests for early assignment of code points from a
>
>        "Specification Required" registry are allowed if the
>
>        specification will be published as an RFC.
>
>
>
>    b.  The format, semantics, processing, and other rules related to
>
>        handling the protocol entities defined by the code points
>
>        (henceforth called "specifications") must be adequately described
>
>        in an Internet-Draft.
>
>
>
>    c.  The specifications of these code points must be stable; i.e., if
>
>        there is a change, implementations based on the earlier and later
>
>        specifications must be seamlessly interoperable.
>
>
>
>    d.  The Working Group chairs and Area Directors (ADs) judge that
>
>        there is sufficient interest in the community for early (pre-RFC)
>
>        implementation and deployment, or that failure to make an early
>
>        allocation might lead to contention for the code point in the
>
>        field.
>
> https://tools.ietf.org/html/rfc7120#section-2
>
>
>
> I believe the above conditions are met. (minus the AD judgement which is =
further down in the process)
>
>
>
> As a reminder, this topic has mainly been discussed following IETF 105 (M=
ontr=C3=A9al) both during the meeting and on the mailing list.
>
> During IETF 106 it has been discussed in the IntArea WG. https://datatrac=
ker.ietf.org/meeting/106/proceedings#intarea
>
>
>
> Note that this code point is not to be specific to SRv6. Depending on AD =
guidance, this specific code point even be moved from draft-ietf-spring-srv=
6-network-programming into a specific 1 page draft.
>
>
>
> If you support early adoption,  please include =E2=80=9Csupport=E2=80=9D =
along with any comments about the draft=E2=80=99s technical solution.
>
>
>
> If you do not support early allocation, please include =E2=80=9Cno suppor=
t=E2=80=9D in your email and indicate why.
>
>
>
> Thank you,
>
> --Bruno
>
>
>
> _________________________________________________________________________=
________________________________________________
>
>
>
> Ce message et ses pieces jointes peuvent contenir des informations confid=
entielles ou privilegiees et ne doivent donc
>
> pas etre diffuses, exploites ou copies sans autorisation. Si vous avez re=
cu ce message par erreur, veuillez le signaler
>
> a l'expediteur et le detruire ainsi que les pieces jointes. Les messages =
electroniques etant susceptibles d'alteration,
>
> Orange decline toute responsabilite si ce message a ete altere, deforme o=
u falsifie. Merci.
>
>
>
> This message and its attachments may contain confidential or privileged i=
nformation that may be protected by law;
>
> they should not be distributed, used or copied without authorisation.
>
> If you have received this email in error, please notify the sender and de=
lete this message and its attachments.
>
> As emails may be altered, Orange is not liable for messages that have bee=
n modified, changed or falsified.
>
> Thank you.
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>
--=20

Gyan S. Mishra

IT Network Engineering & Technology

Verizon Communications Inc. (VZ)

13101 Columbia Pike FDC1 3rd Floor

Silver Spring, MD 20904

United States

Phone: 301 502-1347

Email: gyan.s.mishra@verizon.com

www.linkedin.com/in/networking-technologies-consultant

--0000000000002b2246059b48ae60
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div><br></div><div dir=3D"auto">I support early allocation as their are ma=
ny IPv6 deployments around the world.</div><div dir=3D"auto"><br></div><div=
 dir=3D"auto">Gyan</div><div><br><div class=3D"gmail_quote"><div dir=3D"ltr=
" class=3D"gmail_attr">On Thu, Jan 2, 2020 at 11:00 PM Zhuangshunwan &lt;<a=
 href=3D"mailto:zhuangshunwan@huawei.com">zhuangshunwan@huawei.com</a>&gt; =
wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8e=
x;border-left:1px #ccc solid;padding-left:1ex">





<div lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:#1f497d">I sup=
port this early allocation.=C2=A0
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:#1f497d"><u></=
u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">Thanks,<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">Shunwan<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d"><u></u>=C2=A0<u></u></=
span></p>
<div>
<div style=3D"border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span>From:</span></b><span> spring [mailto:<a hr=
ef=3D"mailto:spring-bounces@ietf.org" target=3D"_blank">spring-bounces@ietf=
.org</a>]
<b>On Behalf Of </b><a href=3D"mailto:bruno.decraene@orange.com" target=3D"=
_blank">bruno.decraene@orange.com</a><br>
<b>Sent:</b> Friday, December 20, 2019 12:54 AM<br>
<b>To:</b> SPRING WG &lt;<a href=3D"mailto:spring@ietf.org" target=3D"_blan=
k">spring@ietf.org</a>&gt;<br>
<b>Subject:</b> [spring] draft-ietf-spring-srv6-network-programming - 2 wee=
k Early Allocation Call<u></u><u></u></span></p>
</div>
</div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<pre>Hi SPRING WG,<u></u><u></u></pre></div></div><div lang=3D"EN-US" link=
=3D"blue" vlink=3D"purple"><div>
<pre><u></u>=C2=A0<u></u></pre>
<pre>This begins a 2 week Early Allocation call for a =E2=80=9CEthernet=E2=
=80=9D value from the &quot;Protocol Numbers&quot; registry.<u></u><u></u><=
/pre>
<pre><a href=3D"https://tools.ietf.org/html/draft-ietf-spring-srv6-network-=
programming-07#section-9.1" target=3D"_blank">https://tools.ietf.org/html/d=
raft-ietf-spring-srv6-network-programming-07#section-9.1</a><u></u><u></u><=
/pre>
<pre><a href=3D"https://tools.ietf.org/html/draft-ietf-spring-srv6-network-=
programming-07#section-5.3" target=3D"_blank">https://tools.ietf.org/html/d=
raft-ietf-spring-srv6-network-programming-07#section-5.3</a><u></u><u></u><=
/pre>
<pre><a href=3D"https://www.iana.org/assignments/protocol-numbers/protocol-=
numbers.xhtml" target=3D"_blank">https://www.iana.org/assignments/protocol-=
numbers/protocol-numbers.xhtml</a><u></u><u></u></pre>
<pre><u></u>=C2=A0<u></u></pre>
<pre>In parallel of the Working Group Last Call which is currently running,=
 the authors are requesting for early code point allocation from IANA as im=
plementations are under way.<u></u><u></u></pre>
<pre><u></u>=C2=A0<u></u></pre>
<pre>The criteria for early allocation are:<u></u><u></u></pre>
<pre>=C2=A0=C2=A0 a.=C2=A0 The code points must be from a space designated =
as &quot;RFC<u></u><u></u></pre>
<pre>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Required&quot;, &quot;IETF Review=
&quot;, or &quot;Standards Action&quot;.=C2=A0 Additionally,<u></u><u></u><=
/pre>
<pre>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 requests for early assignment of =
code points from a<u></u><u></u></pre>
<pre>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 &quot;Specification Required&quot=
; registry are allowed if the<u></u><u></u></pre>
<pre>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 specification will be published a=
s an RFC.<u></u><u></u></pre>
<pre><u></u>=C2=A0<u></u></pre>
<pre>=C2=A0=C2=A0 b.=C2=A0 The format, semantics, processing, and other rul=
es related to<u></u><u></u></pre>
<pre>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 handling the protocol entities de=
fined by the code points<u></u><u></u></pre>
<pre>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 (henceforth called &quot;specific=
ations&quot;) must be adequately described<u></u><u></u></pre>
<pre>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 in an Internet-Draft.<u></u><u></=
u></pre>
<pre><u></u>=C2=A0<u></u></pre>
<pre>=C2=A0=C2=A0 c.=C2=A0 The specifications of these code points must be =
stable; i.e., if<u></u><u></u></pre>
<pre>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 there is a change, implementation=
s based on the earlier and later<u></u><u></u></pre>
<pre>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 specifications must be seamlessly=
 interoperable.<u></u><u></u></pre>
<pre><u></u>=C2=A0<u></u></pre>
<pre>=C2=A0=C2=A0 d.=C2=A0 The Working Group chairs and Area Directors (ADs=
) judge that<u></u><u></u></pre>
<pre>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 there is sufficient interest in t=
he community for early (pre-RFC)<u></u><u></u></pre>
<pre>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 implementation and deployment, or=
 that failure to make an early<u></u><u></u></pre>
<pre>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 allocation might lead to contenti=
on for the code point in the<u></u><u></u></pre>
<pre>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 field.<u></u><u></u></pre>
<pre><a href=3D"https://tools.ietf.org/html/rfc7120#section-2" target=3D"_b=
lank">https://tools.ietf.org/html/rfc7120#section-2</a><u></u><u></u></pre>
<pre><u></u>=C2=A0<u></u></pre>
<pre>I believe the above conditions are met. (minus the AD judgement which =
is further down in the process)<u></u><u></u></pre>
<pre><u></u>=C2=A0<u></u></pre>
<pre>As a reminder, this topic has mainly been discussed following IETF 105=
 (Montr=C3=A9al) both during the meeting and on the mailing list.<u></u><u>=
</u></pre>
<pre>During IETF 106 it has been discussed in the IntArea WG. <a href=3D"ht=
tps://datatracker.ietf.org/meeting/106/proceedings#intarea" target=3D"_blan=
k">https://datatracker.ietf.org/meeting/106/proceedings#intarea</a><u></u><=
u></u></pre>
<pre><u></u>=C2=A0<u></u></pre>
<pre>Note that this code point is not to be specific to SRv6. Depending on =
AD guidance, this specific code point even be moved from draft-ietf-spring-=
srv6-network-programming into a specific 1 page draft.<u></u><u></u></pre>
<pre><u></u>=C2=A0<u></u></pre>
<pre>If you support early adoption, =C2=A0please include =E2=80=9Csupport=
=E2=80=9D along with any comments about the draft=E2=80=99s technical solut=
ion.<u></u><u></u></pre>
<pre><u></u>=C2=A0<u></u></pre>
<pre>If you do not support early allocation, please include =E2=80=9Cno sup=
port=E2=80=9D in your email and indicate why.<u></u><u></u></pre>
<pre><u></u>=C2=A0<u></u></pre>
<pre><span lang=3D"FR">Thank you,<u></u><u></u></span></pre>
<pre><span lang=3D"FR">--Bruno<u></u><u></u></span></pre>
<p class=3D"MsoNormal"><span lang=3D"FR"><u></u>=C2=A0<u></u></span></p>
<pre><span lang=3D"FR">____________________________________________________=
_____________________________________________________________________<u></u=
><u></u></span></pre>
<pre><span lang=3D"FR"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"FR">Ce message et ses pieces jointes peuvent contenir de=
s informations confidentielles ou privilegiees et ne doivent donc<u></u><u>=
</u></span></pre>
<pre><span lang=3D"FR">pas etre diffuses, exploites ou copies sans autorisa=
tion. Si vous avez recu ce message par erreur, veuillez le signaler<u></u><=
u></u></span></pre>
<pre><span lang=3D"FR">a l&#39;expediteur et le detruire ainsi que les piec=
es jointes. Les messages electroniques etant susceptibles d&#39;alteration,=
<u></u><u></u></span></pre>
<pre><span lang=3D"FR">Orange decline toute responsabilite si ce message a =
ete altere, deforme ou falsifie. Merci.<u></u><u></u></span></pre>
<pre><span lang=3D"FR"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"FR">This message and its attachments may contain confide=
ntial or privileged information that may be protected by law;<u></u><u></u>=
</span></pre>
<pre><span lang=3D"FR">they should not be distributed, used or copied witho=
ut authorisation.<u></u><u></u></span></pre>
<pre><span lang=3D"FR">If you have received this email in error, please not=
ify the sender and delete this message and its attachments.<u></u><u></u></=
span></pre>
<pre><span lang=3D"FR">As emails may be altered, Orange is not liable for m=
essages that have been modified, changed or falsified.<u></u><u></u></span>=
</pre>
<pre><span lang=3D"FR">Thank you.<u></u><u></u></span></pre>
</div>
</div>

_______________________________________________<br>
spring mailing list<br>
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>
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 target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><br>
</blockquote></div></div>-- <br><div dir=3D"ltr" class=3D"gmail_signature" =
data-smartmail=3D"gmail_signature"><div dir=3D"ltr"><div><div dir=3D"ltr"><=
div dir=3D"ltr"><div><p class=3D"MsoNormal"><span style=3D"font-family:Cali=
bri,sans-serif;color:rgb(80,0,80);background-image:initial;background-posit=
ion:initial;background-repeat:initial">Gyan S. Mishra</span><span style=3D"=
color:rgb(80,0,80);background-image:initial;background-position:initial;bac=
kground-repeat:initial"><span></span></span></p><p class=3D"MsoNormal"><spa=
n style=3D"font-family:Calibri,sans-serif;color:rgb(80,0,80);background-ima=
ge:initial;background-position:initial;background-repeat:initial">IT Networ=
k Engineering &amp;
Technology=C2=A0</span><span style=3D"color:rgb(80,0,80);background-image:i=
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</span></p><p class=3D"MsoNormal"><span style=3D"font-family:Calibri,sans-s=
erif;color:rgb(80,0,80);background-image:initial;background-position:initia=
l;background-repeat:initial">Verizon
Communications=C2=A0Inc. (VZ)</span><span style=3D"color:rgb(80,0,80);backg=
round-image:initial;background-position:initial;background-repeat:initial">=
<span></span></span></p><p class=3D"MsoNormal"><span style=3D"font-family:C=
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Floor</span><span style=3D"color:rgb(80,0,80);background-image:initial;back=
ground-position:initial;background-repeat:initial"><span></span></span></p>=
<p class=3D"MsoNormal"><span style=3D"font-family:Calibri,sans-serif;color:=
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Subject: Re: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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support.

s.


> On Dec 19, 2019, at 5:53 PM, bruno.decraene@orange.com wrote:
>=20
> Hi SPRING WG,
> =20
> This begins a 2 week Early Allocation call for a =93Ethernet=94 value =
from the "Protocol Numbers" registry.
> =
https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#=
section-9.1
> =
https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#=
section-5.3
> =
https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml
> =20
> In parallel of the Working Group Last Call which is currently running, =
the authors are requesting for early code point allocation from IANA as =
implementations are under way.
> =20
> The criteria for early allocation are:
>    a.  The code points must be from a space designated as "RFC
>        Required", "IETF Review", or "Standards Action".  Additionally,
>        requests for early assignment of code points from a
>        "Specification Required" registry are allowed if the
>        specification will be published as an RFC.
> =20
>    b.  The format, semantics, processing, and other rules related to
>        handling the protocol entities defined by the code points
>        (henceforth called "specifications") must be adequately =
described
>        in an Internet-Draft.
> =20
>    c.  The specifications of these code points must be stable; i.e., =
if
>        there is a change, implementations based on the earlier and =
later
>        specifications must be seamlessly interoperable.
> =20
>    d.  The Working Group chairs and Area Directors (ADs) judge that
>        there is sufficient interest in the community for early =
(pre-RFC)
>        implementation and deployment, or that failure to make an early
>        allocation might lead to contention for the code point in the
>        field.
> https://tools.ietf.org/html/rfc7120#section-2
> =20
> I believe the above conditions are met. (minus the AD judgement which =
is further down in the process)
> =20
> As a reminder, this topic has mainly been discussed following IETF 105 =
(Montr=E9al) both during the meeting and on the mailing list.
> During IETF 106 it has been discussed in the IntArea WG. =
https://datatracker.ietf.org/meeting/106/proceedings#intarea
> =20
> Note that this code point is not to be specific to SRv6. Depending on =
AD guidance, this specific code point even be moved from =
draft-ietf-spring-srv6-network-programming into a specific 1 page draft.
> =20
> If you support early adoption,  please include =93support=94 along =
with any comments about the draft=92s technical solution.
> =20
> If you do not support early allocation, please include =93no support=94 =
in your email and indicate why.
> =20
> Thank you,
> --Bruno
> =20
> =
__________________________________________________________________________=
_______________________________________________
>=20
> Ce message et ses pieces jointes peuvent contenir des informations =
confidentielles ou privilegiees et ne doivent donc
> pas etre diffuses, exploites ou copies sans autorisation. Si vous avez =
recu ce message par erreur, veuillez le signaler
> a l'expediteur et le detruire ainsi que les pieces jointes. Les =
messages electroniques etant susceptibles d'alteration,
> Orange decline toute responsabilite si ce message a ete altere, =
deforme ou falsifie. Merci.
>=20
> This message and its attachments may contain confidential or =
privileged information that may be protected by law;
> they should not be distributed, used or copied without authorisation.
> If you have received this email in error, please notify the sender and =
delete this message and its attachments.
> As emails may be altered, Orange is not liable for messages that have =
been modified, changed or falsified.
> Thank you.
>=20
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring


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Thread-Topic: draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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?Support


Daniel Bernier
Bell Canada

________________________________
From: spring <spring-bounces@ietf.org> on behalf of bruno.decraene@orange.c=
om <bruno.decraene@orange.com>
Sent: Thursday, December 19, 2019 11:53 AM
To: SPRING WG
Subject: [EXT][spring] draft-ietf-spring-srv6-network-programming - 2 week =
Early Allocation Call


Hi SPRING WG,



This begins a 2 week Early Allocation call for a "Ethernet" value from the =
"Protocol Numbers" registry.

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-9.1

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-5.3

https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml



In parallel of the Working Group Last Call which is currently running, the =
authors are requesting for early code point allocation from IANA as impleme=
ntations are under way.



The criteria for early allocation are:

   a.  The code points must be from a space designated as "RFC

       Required", "IETF Review", or "Standards Action".  Additionally,

       requests for early assignment of code points from a

       "Specification Required" registry are allowed if the

       specification will be published as an RFC.



   b.  The format, semantics, processing, and other rules related to

       handling the protocol entities defined by the code points

       (henceforth called "specifications") must be adequately described

       in an Internet-Draft.



   c.  The specifications of these code points must be stable; i.e., if

       there is a change, implementations based on the earlier and later

       specifications must be seamlessly interoperable.



   d.  The Working Group chairs and Area Directors (ADs) judge that

       there is sufficient interest in the community for early (pre-RFC)

       implementation and deployment, or that failure to make an early

       allocation might lead to contention for the code point in the

       field.

https://tools.ietf.org/html/rfc7120#section-2



I believe the above conditions are met. (minus the AD judgement which is fu=
rther down in the process)



As a reminder, this topic has mainly been discussed following IETF 105 (Mon=
tr=E9al) both during the meeting and on the mailing list.

During IETF 106 it has been discussed in the IntArea WG. https://datatracke=
r.ietf.org/meeting/106/proceedings#intarea



Note that this code point is not to be specific to SRv6. Depending on AD gu=
idance, this specific code point even be moved from draft-ietf-spring-srv6-=
network-programming into a specific 1 page draft.



If you support early adoption,  please include "support" along with any com=
ments about the draft's technical solution.



If you do not support early allocation, please include "no support" in your=
 email and indicate why.



Thank you,

--Bruno


___________________________________________________________________________=
______________________________________________

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pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler
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ectroniques etant susceptibles d'alteration,
Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.

This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;
they should not be distributed, used or copied without authorisation.
If you have received this email in error, please notify the sender and dele=
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Thank you.


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<p>&#8203;Support<br>
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<div class=3D"BodyFragment">
<div class=3D"PlainText"><span style=3D"font-size: 12pt;">Daniel Bernier</s=
pan></div>
<div class=3D"PlainText"><span style=3D"font-size: 12pt;">Bell Canada</span=
><br>
</div>
<div class=3D"PlainText" style=3D"font-size:small"><br>
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<div style=3D"color: rgb(33, 33, 33);">
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<div id=3D"divRplyFwdMsg" dir=3D"ltr"><font face=3D"Calibri, sans-serif" co=
lor=3D"#000000" style=3D"font-size:11pt"><b>From:</b> spring &lt;spring-bou=
nces@ietf.org&gt; on behalf of bruno.decraene@orange.com &lt;bruno.decraene=
@orange.com&gt;<br>
<b>Sent:</b> Thursday, December 19, 2019 11:53 AM<br>
<b>To:</b> SPRING WG<br>
<b>Subject:</b> [EXT][spring] draft-ietf-spring-srv6-network-programming - =
2 week Early Allocation Call</font>
<div>&nbsp;</div>
</div>
<div>
<div class=3D"WordSection1">
<pre><span lang=3D"EN-US" style=3D"">Hi SPRING WG,</span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">This begins a 2 week Early Allocation =
call for a &#8220;Ethernet&#8221; value from the &quot;Protocol Numbers&quo=
t; registry.</span></pre>
<pre><span lang=3D"EN-US" style=3D""><a href=3D"https://tools.ietf.org/html=
/draft-ietf-spring-srv6-network-programming-07#section-9.1">https://tools.i=
etf.org/html/draft-ietf-spring-srv6-network-programming-07#section-9.1</a><=
/span></pre>
<pre><span lang=3D"EN-US" style=3D""><a href=3D"https://tools.ietf.org/html=
/draft-ietf-spring-srv6-network-programming-07#section-5.3">https://tools.i=
etf.org/html/draft-ietf-spring-srv6-network-programming-07#section-5.3</a><=
/span></pre>
<pre><span lang=3D"EN-US" style=3D""><a href=3D"https://www.iana.org/assign=
ments/protocol-numbers/protocol-numbers.xhtml">https://www.iana.org/assignm=
ents/protocol-numbers/protocol-numbers.xhtml</a></span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">In parallel of the Working Group Last =
Call which is currently running, the authors are requesting for early code =
point allocation from IANA as implementations are under way.</span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">The criteria for early allocation are:=
</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp; </span>a=
.<span style=3D"">&nbsp; </span>The code points must be from a space design=
ated as &quot;RFC</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>Required&quot;, &quot;IETF Review&quot;, or &quot;St=
andards Action&quot;.<span style=3D"">&nbsp; </span>Additionally,</span></p=
re>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>requests for early assignment of code points from a<=
/span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>&quot;Specification Required&quot; registry are allo=
wed if the</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>specification will be published as an RFC.</span></p=
re>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp; </span>b=
.<span style=3D"">&nbsp; </span>The format, semantics, processing, and othe=
r rules related to</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>handling the protocol entities defined by the code p=
oints</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>(henceforth called &quot;specifications&quot;) must =
be adequately described</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>in an Internet-Draft.</span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp; </span>c=
.<span style=3D"">&nbsp; </span>The specifications of these code points mus=
t be stable; i.e., if</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>there is a change, implementations based on the earl=
ier and later</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>specifications must be seamlessly interoperable.</sp=
an></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp; </span>d=
.<span style=3D"">&nbsp; </span>The Working Group chairs and Area Directors=
 (ADs) judge that</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>there is sufficient interest in the community for ea=
rly (pre-RFC)</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>implementation and deployment, or that failure to ma=
ke an early</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>allocation might lead to contention for the code poi=
nt in the</span></pre>
<pre><span lang=3D"EN-US" style=3D""><span style=3D"">&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span>field.</span></pre>
<pre><span lang=3D"EN-US" style=3D""><a href=3D"https://tools.ietf.org/html=
/rfc7120#section-2">https://tools.ietf.org/html/rfc7120#section-2</a></span=
></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">I believe the above conditions are met=
. (minus the AD judgement which is further down in the process)</span></pre=
>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">As a reminder, this topic has mainly b=
een discussed following IETF 105 (Montr=E9al) both during the meeting and o=
n the mailing list.</span></pre>
<pre><span lang=3D"EN-US" style=3D"">During IETF 106 it has been discussed =
in the <span class=3D"SpellE">IntArea</span> WG. <a href=3D"https://datatra=
cker.ietf.org/meeting/106/proceedings#intarea">https://datatracker.ietf.org=
/meeting/106/proceedings#intarea</a></span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">Note that this code point is not to be=
 specific to SRv6. Depending on AD guidance, this specific code point even =
be moved from draft-ietf-spring-srv6-network-programming into a specific 1 =
page draft.</span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">If you support early adoption, &nbsp;p=
lease include &#8220;support&#8221; along with any comments about the draft=
&#8217;s technical solution.</span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">If you do not support early allocation=
, please include &#8220;no support&#8221; in your email and indicate why.</=
span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span class=3D"SpellE">Thank</span> <span class=3D"SpellE">you</span>,=
</pre>
<pre>--Bruno</pre>
<p class=3D"MsoNormal">&nbsp;</p>
</div>
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Subject: Re: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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Support the early allocation.

Thanks,
Ketan

From: spring <spring-bounces@ietf.org> On Behalf Of bruno.decraene@orange.c=
om
Sent: 19 December 2019 22:24
To: SPRING WG <spring@ietf.org>
Subject: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early=
 Allocation Call


Hi SPRING WG,



This begins a 2 week Early Allocation call for a "Ethernet" value from the =
"Protocol Numbers" registry.

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-9.1

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-5.3

https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml



In parallel of the Working Group Last Call which is currently running, the =
authors are requesting for early code point allocation from IANA as impleme=
ntations are under way.



The criteria for early allocation are:

   a.  The code points must be from a space designated as "RFC

       Required", "IETF Review", or "Standards Action".  Additionally,

       requests for early assignment of code points from a

       "Specification Required" registry are allowed if the

       specification will be published as an RFC.



   b.  The format, semantics, processing, and other rules related to

       handling the protocol entities defined by the code points

       (henceforth called "specifications") must be adequately described

       in an Internet-Draft.



   c.  The specifications of these code points must be stable; i.e., if

       there is a change, implementations based on the earlier and later

       specifications must be seamlessly interoperable.



   d.  The Working Group chairs and Area Directors (ADs) judge that

       there is sufficient interest in the community for early (pre-RFC)

       implementation and deployment, or that failure to make an early

       allocation might lead to contention for the code point in the

       field.

https://tools.ietf.org/html/rfc7120#section-2



I believe the above conditions are met. (minus the AD judgement which is fu=
rther down in the process)



As a reminder, this topic has mainly been discussed following IETF 105 (Mon=
tr=E9al) both during the meeting and on the mailing list.

During IETF 106 it has been discussed in the IntArea WG. https://datatracke=
r.ietf.org/meeting/106/proceedings#intarea



Note that this code point is not to be specific to SRv6. Depending on AD gu=
idance, this specific code point even be moved from draft-ietf-spring-srv6-=
network-programming into a specific 1 page draft.



If you support early adoption,  please include "support" along with any com=
ments about the draft's technical solution.



If you do not support early allocation, please include "no support" in your=
 email and indicate why.



Thank you,

--Bruno


___________________________________________________________________________=
______________________________________________



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Orange decline toute responsabilite si ce message a ete altere, deforme ou =
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<body lang=3D"EN-IN" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal">Support the early allocation.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Thanks,<o:p></o:p></p>
<p class=3D"MsoNormal">Ketan<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"mso-fareast-languag=
e:EN-IN">From:</span></b><span lang=3D"EN-US" style=3D"mso-fareast-language=
:EN-IN"> spring &lt;spring-bounces@ietf.org&gt;
<b>On Behalf Of </b>bruno.decraene@orange.com<br>
<b>Sent:</b> 19 December 2019 22:24<br>
<b>To:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Subject:</b> [spring] draft-ietf-spring-srv6-network-programming - 2 wee=
k Early Allocation Call<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<pre><span lang=3D"EN-US">Hi SPRING WG,<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">This begins a 2 week Early Allocation call for a =
&#8220;Ethernet&#8221; value from the &quot;Protocol Numbers&quot; registry=
.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-07#section-9.1">https://tools.ietf.org/htm=
l/draft-ietf-spring-srv6-network-programming-07#section-9.1</a><o:p></o:p><=
/span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-07#section-5.3">https://tools.ietf.org/htm=
l/draft-ietf-spring-srv6-network-programming-07#section-5.3</a><o:p></o:p><=
/span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://www.iana.org/assignments/proto=
col-numbers/protocol-numbers.xhtml">https://www.iana.org/assignments/protoc=
ol-numbers/protocol-numbers.xhtml</a><o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">In parallel of the Working Group Last Call which =
is currently running, the authors are requesting for early code point alloc=
ation from IANA as implementations are under way.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">The criteria for early allocation are:<o:p></o:p>=
</span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp; a.&nbsp; The code points must be fro=
m a space designated as &quot;RFC<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Required&quo=
t;, &quot;IETF Review&quot;, or &quot;Standards Action&quot;.&nbsp; Additio=
nally,<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; requests for=
 early assignment of code points from a<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &quot;Specif=
ication Required&quot; registry are allowed if the<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; specificatio=
n will be published as an RFC.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp; b.&nbsp; The format, semantics, proc=
essing, and other rules related to<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; handling the=
 protocol entities defined by the code points<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (henceforth =
called &quot;specifications&quot;) must be adequately described<o:p></o:p><=
/span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in an Intern=
et-Draft.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp; c.&nbsp; The specifications of these=
 code points must be stable; i.e., if<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; there is a c=
hange, implementations based on the earlier and later<o:p></o:p></span></pr=
e>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; specificatio=
ns must be seamlessly interoperable.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp; d.&nbsp; The Working Group chairs an=
d Area Directors (ADs) judge that<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; there is suf=
ficient interest in the community for early (pre-RFC)<o:p></o:p></span></pr=
e>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; implementati=
on and deployment, or that failure to make an early<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; allocation m=
ight lead to contention for the code point in the<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; field.<o:p><=
/o:p></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/rfc7120#se=
ction-2">https://tools.ietf.org/html/rfc7120#section-2</a><o:p></o:p></span=
></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">I believe the above conditions are met. (minus th=
e AD judgement which is further down in the process)<o:p></o:p></span></pre=
>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">As a reminder, this topic has mainly been discuss=
ed following IETF 105 (Montr=E9al) both during the meeting and on the maili=
ng list.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">During IETF 106 it has been discussed in the IntA=
rea WG. <a href=3D"https://datatracker.ietf.org/meeting/106/proceedings#int=
area">https://datatracker.ietf.org/meeting/106/proceedings#intarea</a><o:p>=
</o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">Note that this code point is not to be specific t=
o SRv6. Depending on AD guidance, this specific code point even be moved fr=
om draft-ietf-spring-srv6-network-programming into a specific 1 page draft.=
<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">If you support early adoption, &nbsp;please inclu=
de &#8220;support&#8221; along with any comments about the draft&#8217;s te=
chnical solution.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US">If you do not support early allocation, please in=
clude &#8220;no support&#8221; in your email and indicate why.<o:p></o:p></=
span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">Thank you,<o:p></o:p></span></pre>
<pre><span lang=3D"FR">--Bruno<o:p></o:p></span></pre>
<p class=3D"MsoNormal"><span lang=3D"FR"><o:p>&nbsp;</o:p></span></p>
<pre><span lang=3D"FR">____________________________________________________=
_____________________________________________________________________<o:p><=
/o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">Ce message et ses pieces jointes peuvent contenir de=
s informations confidentielles ou privilegiees et ne doivent donc<o:p></o:p=
></span></pre>
<pre><span lang=3D"FR">pas etre diffuses, exploites ou copies sans autorisa=
tion. Si vous avez recu ce message par erreur, veuillez le signaler<o:p></o=
:p></span></pre>
<pre><span lang=3D"FR">a l'expediteur et le detruire ainsi que les pieces j=
ointes. Les messages electroniques etant susceptibles d'alteration,<o:p></o=
:p></span></pre>
<pre><span lang=3D"FR">Orange decline toute responsabilite si ce message a =
ete altere, deforme ou falsifie. Merci.<o:p></o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">This message and its attachments may contain confide=
ntial or privileged information that may be protected by law;<o:p></o:p></s=
pan></pre>
<pre><span lang=3D"FR">they should not be distributed, used or copied witho=
ut authorisation.<o:p></o:p></span></pre>
<pre><span lang=3D"FR">If you have received this email in error, please not=
ify the sender and delete this message and its attachments.<o:p></o:p></spa=
n></pre>
<pre><span lang=3D"FR">As emails may be altered, Orange is not liable for m=
essages that have been modified, changed or falsified.<o:p></o:p></span></p=
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<pre><span lang=3D"FR">Thank you.<o:p></o:p></span></pre>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/RhBTFLx7NuJFpGsLmBIto2eDVdo>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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Bruno,

I also support this early allocation, as this code point is also required b=
y draft-bonica-6man-vpn-dest-opt.

                                                                           =
       Ron




Juniper Business Use Only
From: spring <spring-bounces@ietf.org> On Behalf Of bruno.decraene@orange.c=
om
Sent: Thursday, December 19, 2019 11:54 AM
To: SPRING WG <spring@ietf.org>
Subject: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early=
 Allocation Call


Hi SPRING WG,



This begins a 2 week Early Allocation call for a "Ethernet" value from the =
"Protocol Numbers" registry.

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-9.1<https://urldefense.com/v3/__https:/tools.ietf.org/html/draft-iet=
f-spring-srv6-network-programming-07*section-9.1__;Iw!!NEt6yMaO-gk!UNwQS7Bz=
AZsVjPCE5I60R8dejKUSNAoGaxs97YgOe2dZtvCG_kPKgFYr8WH26nSq$>

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-5.3<https://urldefense.com/v3/__https:/tools.ietf.org/html/draft-iet=
f-spring-srv6-network-programming-07*section-5.3__;Iw!!NEt6yMaO-gk!UNwQS7Bz=
AZsVjPCE5I60R8dejKUSNAoGaxs97YgOe2dZtvCG_kPKgFYr8Z1FKb6j$>

https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml<ht=
tps://urldefense.com/v3/__https:/www.iana.org/assignments/protocol-numbers/=
protocol-numbers.xhtml__;!!NEt6yMaO-gk!UNwQS7BzAZsVjPCE5I60R8dejKUSNAoGaxs9=
7YgOe2dZtvCG_kPKgFYr8cbN3zdl$>



In parallel of the Working Group Last Call which is currently running, the =
authors are requesting for early code point allocation from IANA as impleme=
ntations are under way.



The criteria for early allocation are:

   a.  The code points must be from a space designated as "RFC

       Required", "IETF Review", or "Standards Action".  Additionally,

       requests for early assignment of code points from a

       "Specification Required" registry are allowed if the

       specification will be published as an RFC.



   b.  The format, semantics, processing, and other rules related to

       handling the protocol entities defined by the code points

       (henceforth called "specifications") must be adequately described

       in an Internet-Draft.



   c.  The specifications of these code points must be stable; i.e., if

       there is a change, implementations based on the earlier and later

       specifications must be seamlessly interoperable.



   d.  The Working Group chairs and Area Directors (ADs) judge that

       there is sufficient interest in the community for early (pre-RFC)

       implementation and deployment, or that failure to make an early

       allocation might lead to contention for the code point in the

       field.

https://tools.ietf.org/html/rfc7120#section-2<https://urldefense.com/v3/__h=
ttps:/tools.ietf.org/html/rfc7120*section-2__;Iw!!NEt6yMaO-gk!UNwQS7BzAZsVj=
PCE5I60R8dejKUSNAoGaxs97YgOe2dZtvCG_kPKgFYr8Zrd7HNU$>



I believe the above conditions are met. (minus the AD judgement which is fu=
rther down in the process)



As a reminder, this topic has mainly been discussed following IETF 105 (Mon=
tr=E9al) both during the meeting and on the mailing list.

During IETF 106 it has been discussed in the IntArea WG. https://datatracke=
r.ietf.org/meeting/106/proceedings#intarea<https://urldefense.com/v3/__http=
s:/datatracker.ietf.org/meeting/106/proceedings*intarea__;Iw!!NEt6yMaO-gk!U=
NwQS7BzAZsVjPCE5I60R8dejKUSNAoGaxs97YgOe2dZtvCG_kPKgFYr8VjZV4U3$>



Note that this code point is not to be specific to SRv6. Depending on AD gu=
idance, this specific code point even be moved from draft-ietf-spring-srv6-=
network-programming into a specific 1 page draft.



If you support early adoption,  please include "support" along with any com=
ments about the draft's technical solution.



If you do not support early allocation, please include "no support" in your=
 email and indicate why.



Thank you,

--Bruno


___________________________________________________________________________=
______________________________________________



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Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.



This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;

they should not be distributed, used or copied without authorisation.

If you have received this email in error, please notify the sender and dele=
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<p class=3D"MsoNormal">Bruno,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">I also support this early allocation, as this code p=
oint is also required by draft-bonica-6man-vpn-dest-opt.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p><=
/p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0in;margin=
-bottom:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b>From:</b> spring &lt;spring-bounces@ietf.org&gt; =
<b>On Behalf Of
</b>bruno.decraene@orange.com<br>
<b>Sent:</b> Thursday, December 19, 2019 11:54 AM<br>
<b>To:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Subject:</b> [spring] draft-ietf-spring-srv6-network-programming - 2 wee=
k Early Allocation Call<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<pre>Hi SPRING WG,<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>This begins a 2 week Early Allocation call for a &#8220;Ethernet&#8221=
; value from the &quot;Protocol Numbers&quot; registry.<o:p></o:p></pre>
<pre><a href=3D"https://urldefense.com/v3/__https:/tools.ietf.org/html/draf=
t-ietf-spring-srv6-network-programming-07*section-9.1__;Iw!!NEt6yMaO-gk!UNw=
QS7BzAZsVjPCE5I60R8dejKUSNAoGaxs97YgOe2dZtvCG_kPKgFYr8WH26nSq$">https://too=
ls.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#section-9.1<=
/a><o:p></o:p></pre>
<pre><a href=3D"https://urldefense.com/v3/__https:/tools.ietf.org/html/draf=
t-ietf-spring-srv6-network-programming-07*section-5.3__;Iw!!NEt6yMaO-gk!UNw=
QS7BzAZsVjPCE5I60R8dejKUSNAoGaxs97YgOe2dZtvCG_kPKgFYr8Z1FKb6j$">https://too=
ls.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#section-5.3<=
/a><o:p></o:p></pre>
<pre><a href=3D"https://urldefense.com/v3/__https:/www.iana.org/assignments=
/protocol-numbers/protocol-numbers.xhtml__;!!NEt6yMaO-gk!UNwQS7BzAZsVjPCE5I=
60R8dejKUSNAoGaxs97YgOe2dZtvCG_kPKgFYr8cbN3zdl$">https://www.iana.org/assig=
nments/protocol-numbers/protocol-numbers.xhtml</a><o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>In parallel of the Working Group Last Call which is currently running,=
 the authors are requesting for early code point allocation from IANA as im=
plementations are under way.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>The criteria for early allocation are:<o:p></o:p></pre>
<pre>&nbsp;&nbsp; a.&nbsp; The code points must be from a space designated =
as &quot;RFC<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Required&quot;, &quot;IETF Review=
&quot;, or &quot;Standards Action&quot;.&nbsp; Additionally,<o:p></o:p></pr=
e>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; requests for early assignment of =
code points from a<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &quot;Specification Required&quot=
; registry are allowed if the<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; specification will be published a=
s an RFC.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>&nbsp;&nbsp; b.&nbsp; The format, semantics, processing, and other rul=
es related to<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; handling the protocol entities de=
fined by the code points<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (henceforth called &quot;specific=
ations&quot;) must be adequately described<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in an Internet-Draft.<o:p></o:p><=
/pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>&nbsp;&nbsp; c.&nbsp; The specifications of these code points must be =
stable; i.e., if<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; there is a change, implementation=
s based on the earlier and later<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; specifications must be seamlessly=
 interoperable.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>&nbsp;&nbsp; d.&nbsp; The Working Group chairs and Area Directors (ADs=
) judge that<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; there is sufficient interest in t=
he community for early (pre-RFC)<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; implementation and deployment, or=
 that failure to make an early<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; allocation might lead to contenti=
on for the code point in the<o:p></o:p></pre>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; field.<o:p></o:p></pre>
<pre><a href=3D"https://urldefense.com/v3/__https:/tools.ietf.org/html/rfc7=
120*section-2__;Iw!!NEt6yMaO-gk!UNwQS7BzAZsVjPCE5I60R8dejKUSNAoGaxs97YgOe2d=
ZtvCG_kPKgFYr8Zrd7HNU$">https://tools.ietf.org/html/rfc7120#section-2</a><o=
:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>I believe the above conditions are met. (minus the AD judgement which =
is further down in the process)<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>As a reminder, this topic has mainly been discussed following IETF 105=
 (Montr=E9al) both during the meeting and on the mailing list.<o:p></o:p></=
pre>
<pre>During IETF 106 it has been discussed in the IntArea WG. <a href=3D"ht=
tps://urldefense.com/v3/__https:/datatracker.ietf.org/meeting/106/proceedin=
gs*intarea__;Iw!!NEt6yMaO-gk!UNwQS7BzAZsVjPCE5I60R8dejKUSNAoGaxs97YgOe2dZtv=
CG_kPKgFYr8VjZV4U3$">https://datatracker.ietf.org/meeting/106/proceedings#i=
ntarea</a><o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>Note that this code point is not to be specific to SRv6. Depending on =
AD guidance, this specific code point even be moved from draft-ietf-spring-=
srv6-network-programming into a specific 1 page draft.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>If you support early adoption, &nbsp;please include &#8220;support&#82=
21; along with any comments about the draft&#8217;s technical solution.<o:p=
></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>If you do not support early allocation, please include &#8220;no suppo=
rt&#8221; in your email and indicate why.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre><span lang=3D"FR">Thank you,<o:p></o:p></span></pre>
<pre><span lang=3D"FR">--Bruno<o:p></o:p></span></pre>
<p class=3D"MsoNormal"><span lang=3D"FR"><o:p>&nbsp;</o:p></span></p>
<pre><span lang=3D"FR">____________________________________________________=
_____________________________________________________________________<o:p><=
/o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">Ce message et ses pieces jointes peuvent contenir de=
s informations confidentielles ou privilegiees et ne doivent donc<o:p></o:p=
></span></pre>
<pre><span lang=3D"FR">pas etre diffuses, exploites ou copies sans autorisa=
tion. Si vous avez recu ce message par erreur, veuillez le signaler<o:p></o=
:p></span></pre>
<pre><span lang=3D"FR">a l'expediteur et le detruire ainsi que les pieces j=
ointes. Les messages electroniques etant susceptibles d'alteration,<o:p></o=
:p></span></pre>
<pre><span lang=3D"FR">Orange decline toute responsabilite si ce message a =
ete altere, deforme ou falsifie. Merci.<o:p></o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">This message and its attachments may contain confide=
ntial or privileged information that may be protected by law;<o:p></o:p></s=
pan></pre>
<pre><span lang=3D"FR">they should not be distributed, used or copied witho=
ut authorisation.<o:p></o:p></span></pre>
<pre><span lang=3D"FR">If you have received this email in error, please not=
ify the sender and delete this message and its attachments.<o:p></o:p></spa=
n></pre>
<pre><span lang=3D"FR">As emails may be altered, Orange is not liable for m=
essages that have been modified, changed or falsified.<o:p></o:p></span></p=
re>
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From: Dirk Steinberg <dirk@lapishills.com>
Date: Mon, 6 Jan 2020 22:26:21 +0100
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To: bruno.decraene@orange.com
Cc: SPRING WG <spring@ietf.org>
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Subject: Re: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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I support the early allocation.


Cheers

Dirk


On Thu, Dec 19, 2019 at 5:54 PM <bruno.decraene@orange.com> wrote:

> Hi SPRING WG,
>
>
>
> This begins a 2 week Early Allocation call for a =E2=80=9CEthernet=E2=80=
=9D value from the "Protocol Numbers" registry.
>
> https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07=
#section-9.1
>
> https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07=
#section-5.3
>
> https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml
>
>
>
> In parallel of the Working Group Last Call which is currently running, th=
e authors are requesting for early code point allocation from IANA as imple=
mentations are under way.
>
>
>
> The criteria for early allocation are:
>
>    a.  The code points must be from a space designated as "RFC
>
>        Required", "IETF Review", or "Standards Action".  Additionally,
>
>        requests for early assignment of code points from a
>
>        "Specification Required" registry are allowed if the
>
>        specification will be published as an RFC.
>
>
>
>    b.  The format, semantics, processing, and other rules related to
>
>        handling the protocol entities defined by the code points
>
>        (henceforth called "specifications") must be adequately described
>
>        in an Internet-Draft.
>
>
>
>    c.  The specifications of these code points must be stable; i.e., if
>
>        there is a change, implementations based on the earlier and later
>
>        specifications must be seamlessly interoperable.
>
>
>
>    d.  The Working Group chairs and Area Directors (ADs) judge that
>
>        there is sufficient interest in the community for early (pre-RFC)
>
>        implementation and deployment, or that failure to make an early
>
>        allocation might lead to contention for the code point in the
>
>        field.
>
> https://tools.ietf.org/html/rfc7120#section-2
>
>
>
> I believe the above conditions are met. (minus the AD judgement which is =
further down in the process)
>
>
>
> As a reminder, this topic has mainly been discussed following IETF 105 (M=
ontr=C3=A9al) both during the meeting and on the mailing list.
>
> During IETF 106 it has been discussed in the IntArea WG. https://datatrac=
ker.ietf.org/meeting/106/proceedings#intarea
>
>
>
> Note that this code point is not to be specific to SRv6. Depending on AD =
guidance, this specific code point even be moved from draft-ietf-spring-srv=
6-network-programming into a specific 1 page draft.
>
>
>
> If you support early adoption,  please include =E2=80=9Csupport=E2=80=9D =
along with any comments about the draft=E2=80=99s technical solution.
>
>
>
> If you do not support early allocation, please include =E2=80=9Cno suppor=
t=E2=80=9D in your email and indicate why.
>
>
>
> Thank you,
>
> --Bruno
>
>
>
> _________________________________________________________________________=
________________________________________________
>
> Ce message et ses pieces jointes peuvent contenir des informations confid=
entielles ou privilegiees et ne doivent donc
> pas etre diffuses, exploites ou copies sans autorisation. Si vous avez re=
cu ce message par erreur, veuillez le signaler
> a l'expediteur et le detruire ainsi que les pieces jointes. Les messages =
electroniques etant susceptibles d'alteration,
> Orange decline toute responsabilite si ce message a ete altere, deforme o=
u falsifie. Merci.
>
> This message and its attachments may contain confidential or privileged i=
nformation that may be protected by law;
> they should not be distributed, used or copied without authorisation.
> If you have received this email in error, please notify the sender and de=
lete this message and its attachments.
> As emails may be altered, Orange is not liable for messages that have bee=
n modified, changed or falsified.
> Thank you.
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

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<div dir=3D"ltr"><p class=3D"MsoNormal"><span lang=3D"EN-US">I support the =
early allocation.<u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=
=3D"EN-US"><br></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">Cheer=
s</span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">Dirk</span></p><br =
class=3D"gmail-Apple-interchange-newline"></div><br><div class=3D"gmail_quo=
te"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, Dec 19, 2019 at 5:54 PM &=
lt;<a href=3D"mailto:bruno.decraene@orange.com">bruno.decraene@orange.com</=
a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0p=
x 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">







<div lang=3D"FR">
<div>
<pre><span lang=3D"EN-US">Hi SPRING WG,<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">This begins a 2 week Early Allocation call for a =
=E2=80=9CEthernet=E2=80=9D value from the &quot;Protocol Numbers&quot; regi=
stry.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-07#section-9.1" target=3D"_blank">https://=
tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#section-9=
.1</a><u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-07#section-5.3" target=3D"_blank">https://=
tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#section-5=
.3</a><u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://www.iana.org/assignments/proto=
col-numbers/protocol-numbers.xhtml" target=3D"_blank">https://www.iana.org/=
assignments/protocol-numbers/protocol-numbers.xhtml</a><u></u><u></u></span=
></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">In parallel of the Working Group Last Call which =
is currently running, the authors are requesting for early code point alloc=
ation from IANA as implementations are under way.<u></u><u></u></span></pre=
>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">The criteria for early allocation are:<u></u><u><=
/u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0 </span>a.<span>=C2=A0 </span>T=
he code points must be from a space designated as &quot;RFC<u></u><u></u></=
span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>Required&quot;, &quot;IETF Review&quot;, or &quot;Standards Action&quot;.<=
span>=C2=A0 </span>Additionally,<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>requests for early assignment of code points from a<u></u><u></u></span></=
pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>&quot;Specification Required&quot; registry are allowed if the<u></u><u></=
u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>specification will be published as an RFC.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0 </span>b.<span>=C2=A0 </span>T=
he format, semantics, processing, and other rules related to<u></u><u></u><=
/span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>handling the protocol entities defined by the code points<u></u><u></u></s=
pan></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>(henceforth called &quot;specifications&quot;) must be adequately describe=
d<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>in an Internet-Draft.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0 </span>c.<span>=C2=A0 </span>T=
he specifications of these code points must be stable; i.e., if<u></u><u></=
u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>there is a change, implementations based on the earlier and later<u></u><u=
></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>specifications must be seamlessly interoperable.<u></u><u></u></span></pre=
>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0 </span>d.<span>=C2=A0 </span>T=
he Working Group chairs and Area Directors (ADs) judge that<u></u><u></u></=
span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>there is sufficient interest in the community for early (pre-RFC)<u></u><u=
></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>implementation and deployment, or that failure to make an early<u></u><u><=
/u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>allocation might lead to contention for the code point in the<u></u><u></u=
></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>field.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/rfc7120#se=
ction-2" target=3D"_blank">https://tools.ietf.org/html/rfc7120#section-2</a=
><u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">I believe the above conditions are met. (minus th=
e AD judgement which is further down in the process)<u></u><u></u></span></=
pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">As a reminder, this topic has mainly been discuss=
ed following IETF 105 (Montr=C3=A9al) both during the meeting and on the ma=
iling list.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US">During IETF 106 it has been discussed in the <spa=
n>IntArea</span> WG. <a href=3D"https://datatracker.ietf.org/meeting/106/pr=
oceedings#intarea" target=3D"_blank">https://datatracker.ietf.org/meeting/1=
06/proceedings#intarea</a><u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">Note that this code point is not to be specific t=
o SRv6. Depending on AD guidance, this specific code point even be moved fr=
om draft-ietf-spring-srv6-network-programming into a specific 1 page draft.=
<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">If you support early adoption, =C2=A0please inclu=
de =E2=80=9Csupport=E2=80=9D along with any comments about the draft=E2=80=
=99s technical solution.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">If you do not support early allocation, please in=
clude =E2=80=9Cno support=E2=80=9D in your email and indicate why.<u></u><u=
></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span>Thank</span> <span>you</span>,<u></u><u></u></pre>
<pre>--Bruno<u></u><u></u></pre>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<pre>______________________________________________________________________=
___________________________________________________

Ce message et ses pieces jointes peuvent contenir des informations confiden=
tielles ou privilegiees et ne doivent donc
pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler
a l&#39;expediteur et le detruire ainsi que les pieces jointes. Les message=
s electroniques etant susceptibles d&#39;alteration,
Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.

This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;
they should not be distributed, used or copied without authorisation.
If you have received this email in error, please notify the sender and dele=
te this message and its attachments.
As emails may be altered, Orange is not liable for messages that have been =
modified, changed or falsified.
Thank you.
</pre></div>

_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
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 target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><br>
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From: Ahmed Bashandy <abashandy.ietf@gmail.com>
Date: Tue, 7 Jan 2020 05:40:08 +0200
Message-ID: <CAAgvS4prxJngiiWYTCX7RCFhFHtYExAiU99x=-RM1cjb+tSc7g@mail.gmail.com>
To: Bruno Decraene <bruno.decraene@orange.com>
Cc: SPRING WG List <spring@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/JNKVVBBvMiLzqeNBucu8nMXF3bY>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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Support the early allocation.

Ahmed

On Thu, Dec 19, 2019, 6:54 PM <bruno.decraene@orange.com> wrote:

> Hi SPRING WG,
>
>
>
> This begins a 2 week Early Allocation call for a =E2=80=9CEthernet=E2=80=
=9D value from the "Protocol Numbers" registry.
>
> https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07=
#section-9.1
>
> https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07=
#section-5.3
>
> https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml
>
>
>
> In parallel of the Working Group Last Call which is currently running, th=
e authors are requesting for early code point allocation from IANA as imple=
mentations are under way.
>
>
>
> The criteria for early allocation are:
>
>    a.  The code points must be from a space designated as "RFC
>
>        Required", "IETF Review", or "Standards Action".  Additionally,
>
>        requests for early assignment of code points from a
>
>        "Specification Required" registry are allowed if the
>
>        specification will be published as an RFC.
>
>
>
>    b.  The format, semantics, processing, and other rules related to
>
>        handling the protocol entities defined by the code points
>
>        (henceforth called "specifications") must be adequately described
>
>        in an Internet-Draft.
>
>
>
>    c.  The specifications of these code points must be stable; i.e., if
>
>        there is a change, implementations based on the earlier and later
>
>        specifications must be seamlessly interoperable.
>
>
>
>    d.  The Working Group chairs and Area Directors (ADs) judge that
>
>        there is sufficient interest in the community for early (pre-RFC)
>
>        implementation and deployment, or that failure to make an early
>
>        allocation might lead to contention for the code point in the
>
>        field.
>
> https://tools.ietf.org/html/rfc7120#section-2
>
>
>
> I believe the above conditions are met. (minus the AD judgement which is =
further down in the process)
>
>
>
> As a reminder, this topic has mainly been discussed following IETF 105 (M=
ontr=C3=A9al) both during the meeting and on the mailing list.
>
> During IETF 106 it has been discussed in the IntArea WG. https://datatrac=
ker.ietf.org/meeting/106/proceedings#intarea
>
>
>
> Note that this code point is not to be specific to SRv6. Depending on AD =
guidance, this specific code point even be moved from draft-ietf-spring-srv=
6-network-programming into a specific 1 page draft.
>
>
>
> If you support early adoption,  please include =E2=80=9Csupport=E2=80=9D =
along with any comments about the draft=E2=80=99s technical solution.
>
>
>
> If you do not support early allocation, please include =E2=80=9Cno suppor=
t=E2=80=9D in your email and indicate why.
>
>
>
> Thank you,
>
> --Bruno
>
>
>
> _________________________________________________________________________=
________________________________________________
>
> Ce message et ses pieces jointes peuvent contenir des informations confid=
entielles ou privilegiees et ne doivent donc
> pas etre diffuses, exploites ou copies sans autorisation. Si vous avez re=
cu ce message par erreur, veuillez le signaler
> a l'expediteur et le detruire ainsi que les pieces jointes. Les messages =
electroniques etant susceptibles d'alteration,
> Orange decline toute responsabilite si ce message a ete altere, deforme o=
u falsifie. Merci.
>
> This message and its attachments may contain confidential or privileged i=
nformation that may be protected by law;
> they should not be distributed, used or copied without authorisation.
> If you have received this email in error, please notify the sender and de=
lete this message and its attachments.
> As emails may be altered, Orange is not liable for messages that have bee=
n modified, changed or falsified.
> Thank you.
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

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<div dir=3D"auto"><div>Support the early allocation.</div><div dir=3D"auto"=
><br></div><div dir=3D"auto">Ahmed<br><br><div class=3D"gmail_quote" dir=3D=
"auto"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, Dec 19, 2019, 6:54 PM =
 &lt;<a href=3D"mailto:bruno.decraene@orange.com">bruno.decraene@orange.com=
</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:=
0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">







<div lang=3D"FR" link=3D"blue" vlink=3D"purple">
<div>
<pre><span lang=3D"EN-US">Hi SPRING WG,<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">This begins a 2 week Early Allocation call for a =
=E2=80=9CEthernet=E2=80=9D value from the &quot;Protocol Numbers&quot; regi=
stry.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-07#section-9.1" target=3D"_blank" rel=3D"n=
oreferrer">https://tools.ietf.org/html/draft-ietf-spring-srv6-network-progr=
amming-07#section-9.1</a><u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-07#section-5.3" target=3D"_blank" rel=3D"n=
oreferrer">https://tools.ietf.org/html/draft-ietf-spring-srv6-network-progr=
amming-07#section-5.3</a><u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://www.iana.org/assignments/proto=
col-numbers/protocol-numbers.xhtml" target=3D"_blank" rel=3D"noreferrer">ht=
tps://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml</a><=
u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">In parallel of the Working Group Last Call which =
is currently running, the authors are requesting for early code point alloc=
ation from IANA as implementations are under way.<u></u><u></u></span></pre=
>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">The criteria for early allocation are:<u></u><u><=
/u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0 </span>a.<span>=C2=A0 </span>T=
he code points must be from a space designated as &quot;RFC<u></u><u></u></=
span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>Required&quot;, &quot;IETF Review&quot;, or &quot;Standards Action&quot;.<=
span>=C2=A0 </span>Additionally,<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>requests for early assignment of code points from a<u></u><u></u></span></=
pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>&quot;Specification Required&quot; registry are allowed if the<u></u><u></=
u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>specification will be published as an RFC.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0 </span>b.<span>=C2=A0 </span>T=
he format, semantics, processing, and other rules related to<u></u><u></u><=
/span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>handling the protocol entities defined by the code points<u></u><u></u></s=
pan></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>(henceforth called &quot;specifications&quot;) must be adequately describe=
d<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>in an Internet-Draft.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0 </span>c.<span>=C2=A0 </span>T=
he specifications of these code points must be stable; i.e., if<u></u><u></=
u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>there is a change, implementations based on the earlier and later<u></u><u=
></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>specifications must be seamlessly interoperable.<u></u><u></u></span></pre=
>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0 </span>d.<span>=C2=A0 </span>T=
he Working Group chairs and Area Directors (ADs) judge that<u></u><u></u></=
span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>there is sufficient interest in the community for early (pre-RFC)<u></u><u=
></u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>implementation and deployment, or that failure to make an early<u></u><u><=
/u></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>allocation might lead to contention for the code point in the<u></u><u></u=
></span></pre>
<pre><span lang=3D"EN-US"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
>field.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/rfc7120#se=
ction-2" target=3D"_blank" rel=3D"noreferrer">https://tools.ietf.org/html/r=
fc7120#section-2</a><u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">I believe the above conditions are met. (minus th=
e AD judgement which is further down in the process)<u></u><u></u></span></=
pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">As a reminder, this topic has mainly been discuss=
ed following IETF 105 (Montr=C3=A9al) both during the meeting and on the ma=
iling list.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US">During IETF 106 it has been discussed in the <spa=
n>IntArea</span> WG. <a href=3D"https://datatracker.ietf.org/meeting/106/pr=
oceedings#intarea" target=3D"_blank" rel=3D"noreferrer">https://datatracker=
.ietf.org/meeting/106/proceedings#intarea</a><u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">Note that this code point is not to be specific t=
o SRv6. Depending on AD guidance, this specific code point even be moved fr=
om draft-ietf-spring-srv6-network-programming into a specific 1 page draft.=
<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">If you support early adoption, =C2=A0please inclu=
de =E2=80=9Csupport=E2=80=9D along with any comments about the draft=E2=80=
=99s technical solution.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">If you do not support early allocation, please in=
clude =E2=80=9Cno support=E2=80=9D in your email and indicate why.<u></u><u=
></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span>Thank</span> <span>you</span>,<u></u><u></u></pre>
<pre>--Bruno<u></u><u></u></pre>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<pre>______________________________________________________________________=
___________________________________________________

Ce message et ses pieces jointes peuvent contenir des informations confiden=
tielles ou privilegiees et ne doivent donc
pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler
a l&#39;expediteur et le detruire ainsi que les pieces jointes. Les message=
s electroniques etant susceptibles d&#39;alteration,
Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.

This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;
they should not be distributed, used or copied without authorisation.
If you have received this email in error, please notify the sender and dele=
te this message and its attachments.
As emails may be altered, Orange is not liable for messages that have been =
modified, changed or falsified.
Thank you.
</pre></div>

_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank" rel=3D"noreferrer">spr=
ing@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer =
noreferrer" target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring<=
/a><br>
</blockquote></div></div></div>

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From: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
To: Ron Bonica <rbonica@juniper.net>
CC: "weibin.wang@nokia-sbell.com" <weibin.wang@nokia-sbell.com>, "hayabusagsm@gmail.com" <hayabusagsm@gmail.com>, "spring@ietf.org" <spring@ietf.org>, "daniel.voyer@bell.ca" <daniel.voyer@bell.ca>
Thread-Topic: [spring] End.DT/End.DX SIDs (was Re: USD/USP question in draft-ietf-spring-srv6-network-programming-06.txt)
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Subject: Re: [spring] End.DT/End.DX SIDs (was Re: USD/USP question in draft-ietf-spring-srv6-network-programming-06.txt)
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From: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
To: Adrian Farrel <adrian@olddog.co.uk>
CC: SPRING WG <spring@ietf.org>
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Subject: Re: [spring] WGLC - draft-ietf-spring-srv6-network-programming
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From: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
To: Ron Bonica <rbonica@juniper.net>
CC: SPRING WG <spring@ietf.org>
Thread-Topic: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6
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From: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
To: Ron Bonica <rbonica@juniper.net>
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Thread-Topic: [spring] SRv6 Network Programming - ICMP Source Address Selection
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Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Selection
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From: Ahmed Bashandy <abashandy.ietf@gmail.com>
Date: Tue, 7 Jan 2020 14:58:17 +0200
Message-ID: <CAAgvS4oc5jmS-vZDf3jZTnLcHM7+EBHFKKMj0pn__BwDGN3jYg@mail.gmail.com>
To: Arthi Ayyangar <arthi@arrcus.com>
Cc: Bruno Decraene <bruno.decraene@orange.com>, SPRING WG List <spring@ietf.org>,  draft-ietf-spring-srv6-network-programming <draft-ietf-spring-srv6-network-programming@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/azqjMmTraSudFujLLaOjrWYLncU>
Subject: Re: [spring] IPR poll for draft-ietf-spring-srv6-network-programming
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--000000000000227f7a059b8c55be
Content-Type: text/plain; charset="UTF-8"
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As a contributer I am not aware of any undisclosed IPR related to this
draft.

Ahmed

On Fri, Jan 3, 2020, 3:15 AM Arthi Ayyangar <arthi@arrcus.com> wrote:

> I=E2=80=99m not aware of any undisclosed IPR related to this document.
>
> thanks,
> Arthi Ayyangar
>
> ------------------------------
> *From:* bruno.decraene@orange..com <bruno.decraene@orange.com>
> *Sent:* Thursday, December 5, 2019 8:50 AM
> *To:* 'SPRING WG List' <spring@ietf.org>;
> draft-ietf-spring-srv6-network-programming <
> draft-ietf-spring-srv6-network-programming@ietf.org>
> *Subject:* IPR poll for draft-ietf-spring-srv6-network-programming
>
> Hi SPRING WG,
>
> In parallel to the WGLC for draft-ietf-spring-srv6-network-programming, w=
e
> would like to poll for IPR.
>
> If you are aware of IPR that applies to
> draft-ietf-spring-srv6-network-programming [1] please respond to this
> email. If you are aware of IPR, please indicate whether it has been
> disclosed in accordance with IETF IPR rules (RFCs 3979, 4879, 3669 and
> 5378 provide more details).
>
> If you are an *author or contributor* please respond to this email
> regardless of whether or not you're aware of any IPR.
>
> This document will not advance until IPR confirmations have been received
> from all authors and contributors.
>
> Thank you,
> Bruno
>
> [1]
> https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-05
>
>
>
> _________________________________________________________________________=
________________________________________________
>
> Ce message et ses pieces jointes peuvent contenir des informations
> confidentielles ou privilegiees et ne doivent donc
> pas etre diffuses, exploites ou copies sans autorisation. Si vous avez
> recu ce message par erreur, veuillez le signaler
> a l'expediteur et le detruire ainsi que les pieces jointes. Les messages
> electroniques etant susceptibles d'alteration,
> Orange decline toute responsabilite si ce message a ete altere, deforme o=
u
> falsifie. Merci.
>
> This message and its attachments may contain confidential or privileged
> information that may be protected by law;
> they should not be distributed, used or copied without authorisation.
> If you have received this email in error, please notify the sender and
> delete this message and its attachments.
> As emails may be altered, Orange is not liable for messages that have bee=
n
> modified, changed or falsified.
> Thank you.
>
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

--000000000000227f7a059b8c55be
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"auto"><div><span style=3D"color:rgb(32,31,30);font-family:calib=
ri,helvetica,sans-serif;font-size:14.6667px;background-color:rgb(255,255,25=
5)">As a contributer I am not aware of any undisclosed IPR related to this =
draft.=C2=A0</span><br><br>Ahmed</div><div dir=3D"auto"><br><div class=3D"g=
mail_quote" dir=3D"auto"><div dir=3D"ltr" class=3D"gmail_attr">On Fri, Jan =
3, 2020, 3:15 AM Arthi Ayyangar &lt;<a href=3D"mailto:arthi@arrcus.com">art=
hi@arrcus.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" sty=
le=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">




<div dir=3D"ltr">
<div style=3D"font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt=
;color:rgb(0,0,0)">
<span style=3D"color:rgb(32,31,30);font-family:Calibri,Helvetica,sans-serif=
;font-size:11pt;background-color:rgb(255,255,255);display:inline!important;=
line-height:normal">I=E2=80=99m not aware of any undisclosed IPR related
 to this document.</span></div>
<div style=3D"font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt=
;color:rgb(0,0,0)">
<br>
</div>
<div style=3D"font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt=
;color:rgb(0,0,0)">
thanks,</div>
<div style=3D"font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt=
;color:rgb(0,0,0)">
<span style=3D"font-family:Calibri,Helvetica,sans-serif;font-size:11pt;line=
-height:normal">Arthi Ayyangar</span></div>
<div>
<div id=3D"m_-3039626593812312461appendonsend"></div>
<div style=3D"font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt=
;color:rgb(0,0,0)">
<span style=3D"font-family:Calibri,Helvetica,sans-serif"></span><br>
</div>
<span style=3D"font-family:Calibri,Helvetica,sans-serif"></span>
<hr style=3D"display:inline-block;width:98%">
<div id=3D"m_-3039626593812312461divRplyFwdMsg" dir=3D"ltr"><font face=3D"C=
alibri, sans-serif" color=3D"#000000" style=3D"font-size:11pt"><b>From:</b>=
 bruno.decraene@orange..com &lt;<a href=3D"mailto:bruno.decraene@orange.com=
" target=3D"_blank" rel=3D"noreferrer">bruno.decraene@orange.com</a>&gt;<br=
>
<b>Sent:</b> Thursday, December 5, 2019 8:50 AM<br>
<b>To:</b> &#39;SPRING WG List&#39; &lt;<a href=3D"mailto:spring@ietf.org" =
target=3D"_blank" rel=3D"noreferrer">spring@ietf.org</a>&gt;; draft-ietf-sp=
ring-srv6-network-programming &lt;<a href=3D"mailto:draft-ietf-spring-srv6-=
network-programming@ietf.org" target=3D"_blank" rel=3D"noreferrer">draft-ie=
tf-spring-srv6-network-programming@ietf.org</a>&gt;<br>
<b>Subject:</b> IPR poll for draft-ietf-spring-srv6-network-programming</fo=
nt>
<div>=C2=A0</div>
</div>
<div><font size=3D"2"><span style=3D"font-size:11pt">
<div>Hi SPRING WG,<br>
<br>
In parallel to the WGLC for draft-ietf-spring-srv6-network-programming, we =
would like to poll for IPR.<br>
<br>
If you are aware of IPR that applies to draft-ietf-spring-srv6-network-prog=
ramming [1] please respond to this email. If you are aware of IPR, please i=
ndicate whether it has been<br>
disclosed in accordance with IETF IPR rules (RFCs 3979, 4879, 3669 and 5378=
 provide more details).<br>
<br>
If you are an *author or contributor* please respond to this email regardle=
ss of whether or not you&#39;re aware of any IPR.
<br>
<br>
This document will not advance until IPR confirmations have been received f=
rom all authors and contributors.<br>
<br>
Thank you,<br>
Bruno<br>
<br>
[1] <a href=3D"https://tools.ietf.org/html/draft-ietf-spring-srv6-network-p=
rogramming-05" target=3D"_blank" rel=3D"noreferrer">
https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-05</=
a><br>
<br>
<br>
___________________________________________________________________________=
______________________________________________<br>
<br>
Ce message et ses pieces jointes peuvent contenir des informations confiden=
tielles ou privilegiees et ne doivent donc<br>
pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler<br>
a l&#39;expediteur et le detruire ainsi que les pieces jointes. Les message=
s electroniques etant susceptibles d&#39;alteration,<br>
Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.<br>
<br>
This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;<br>
they should not be distributed, used or copied without authorisation.<br>
If you have received this email in error, please notify the sender and dele=
te this message and its attachments.<br>
As emails may be altered, Orange is not liable for messages that have been =
modified, changed or falsified.<br>
Thank you.<br>
<br>
<br>
</div>
</span></font></div>
</div>
</div>

_______________________________________________<br>
spring mailing list<br>
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From: Ron Bonica <rbonica@juniper.net>
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
CC: "weibin.wang@nokia-sbell.com" <weibin.wang@nokia-sbell.com>, "hayabusagsm@gmail.com" <hayabusagsm@gmail.com>, "spring@ietf.org" <spring@ietf.org>, "daniel.voyer@bell.ca" <daniel.voyer@bell.ca>
Thread-Topic: [spring] End.DT/End.DX SIDs (was Re: USD/USP question in draft-ietf-spring-srv6-network-programming-06.txt)
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Subject: Re: [spring] End.DT/End.DX SIDs (was Re: USD/USP question in draft-ietf-spring-srv6-network-programming-06.txt)
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Pablo,

Got it. I assume the next version of the draft will reflect this point.

                                                  Ron




Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com>
Sent: Tuesday, January 7, 2020 4:15 AM
To: Ron Bonica <rbonica@juniper.net>
Cc: weibin.wang@nokia-sbell.com; hayabusagsm@gmail.com; spring@ietf.org; da=
niel.voyer@bell.ca
Subject: Re: [spring] End.DT/End.DX SIDs (was Re: USD/USP question in draft=
-ietf-spring-srv6-network-programming-06.txt)

Ron,

Happy New Year.

You may have forgotten the conversation that we had in December where I rep=
lied to this same question. https://mailarchive.ietf.org/arch/msg/spring/d4=
5B3wI5UBliIE0aoJPU-PDNe7w<https://urldefense.com/v3/__https:/mailarchive.ie=
tf.org/arch/msg/spring/d45B3wI5UBliIE0aoJPU-PDNe7w__;!!NEt6yMaO-gk!XKmHVwgL=
n4vuKpN5tc78Y9KVNQ7X4UvurW4R5WG0WOGrk8w2HNKcj3dullEiyCJy$>
Please re-read that thread and let me know if it is still unclear.

Thanks,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Sunday, 29 December 2019 at 18:38
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>, "weibin.wang@nokia-sbell.com<mailto:weibin.wang@nokia-sbell.com>" <w=
eibin.wang@nokia-sbell.com<mailto:weibin.wang@nokia-sbell.com>>, "hayabusag=
sm@gmail.com<mailto:hayabusagsm@gmail.com>" <hayabusagsm@gmail.com<mailto:h=
ayabusagsm@gmail.com>>
Cc: "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sprin=
g@ietf.org>>, "Voyer, Daniel" <daniel.voyer@bell.ca<mailto:daniel.voyer@bel=
l.ca>>
Subject: RE: [spring] End.DT/End.DX SIDs (was Re: USD/USP question in draft=
-ietf-spring-srv6-network-programming-06.txt)

Camillo,

I may be misunderstanding something. Do the numeric constants defined in Se=
ction 9.2.1 of draft-ietf-spring-srv6-network programming appear in SIDs?

For example, assume that a node advertises the locator 2001:db8:0:1::/64. C=
an we assume that all END.DX6 SIDs instantiated on that node will be drawn =
from  2001:db8:0:1:10::/80?

                                           Ron




Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Friday, December 20, 2019 12:31 PM
To: weibin.wang@nokia-sbell.com<mailto:weibin.wang@nokia-sbell.com>; hayabu=
sagsm@gmail.com<mailto:hayabusagsm@gmail.com>; Ron Bonica <rbonica@juniper.=
net<mailto:rbonica@juniper.net>>
Cc: spring@ietf.org<mailto:spring@ietf.org>; Voyer, Daniel <daniel.voyer@be=
ll.ca<mailto:daniel.voyer@bell.ca>>
Subject: Re: [spring] End.DT/End.DX SIDs (was Re: USD/USP question in draft=
-ietf-spring-srv6-network-programming-06.txt)

Ron, Gyan,

Sections 4.4 to 4.8 of draft-ietf-spring-srv6-network-programming define th=
e local dataplane processing on the egress PE.

As far as L3VPN signaling is concerned [draft-ietf-bess-srv6-services], the=
 egress PE signals opaque behavior for the SID, so it is transparent to the=
 control plane. Whether the egress PE is doing End.DX or End.DT is transpar=
ent to the ingress PE.

Happy holidays,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Thursday, 19 December 2019 at 17:29
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>, "Wang, Weibin (NSB - CN/Shanghai)" <weibin.wang@nokia-sbell.com<mail=
to:weibin.wang@nokia-sbell.com>>, Gyan Mishra <hayabusagsm@gmail.com<mailto=
:hayabusagsm@gmail.com>>
Cc: "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sprin=
g@ietf.org>>, "Voyer, Daniel" <daniel.voyer@bell.ca<mailto:daniel.voyer@bel=
l.ca>>
Subject: RE: [spring] End.DT/End.DX SIDs (was Re: USD/USP question in draft=
-ietf-spring-srv6-network-programming-06.txt)

Pablo,

In L3VPN, all of these are combined into a single 20-bit MPLS label. Why ca=
n SRv6 not do likewise?

                                             Ron



Juniper Business Use Only
From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> On B=
ehalf Of Pablo Camarillo (pcamaril)
Sent: Thursday, December 19, 2019 6:47 AM
To: Wang, Weibin (NSB - CN/Shanghai) <weibin.wang@nokia-sbell.com<mailto:we=
ibin.wang@nokia-sbell.com>>; Gyan Mishra <hayabusagsm@gmail.com<mailto:haya=
busagsm@gmail.com>>
Cc: spring@ietf.org<mailto:spring@ietf.org>; Voyer, Daniel <daniel.voyer@be=
ll.ca<mailto:daniel.voyer@bell.ca>>
Subject: [spring] End.DT/End.DX SIDs (was Re: USD/USP question in draft-iet=
f-spring-srv6-network-programming-06.txt)

Gyan,

The End.DX4/End.DX6 can be seen as an equivalent to the MPLS per-CE VPN lab=
el.
The End.DT4/End.DT6 can be seen as an equivalent to the MPLS per-VRF VPN la=
bel.

I believe that they cannot be combined.

Cheers,
Pablo.

From: Gyan Mishra <hayabusagsm@gmail.com<mailto:hayabusagsm@gmail.com>>
Date: Sunday, 15 December 2019 at 08:29
To: "Wang, Weibin (NSB - CN/Shanghai)" <weibin.wang@nokia-sbell.com<mailto:=
weibin.wang@nokia-sbell.com>>
Cc: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>, "Voyer, Daniel" <daniel.voyer@bell.ca<mailto:daniel.voyer@bell.ca>>,=
 "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:spring@i=
etf.org>>
Subject: Re: [spring] USD/USP question in draft-ietf-spring-srv6-network-pr=
ogramming-06.txt


Hi Wang & Pablo & Spring Authors,

Had another question?

These 4 sections.  Trying to understand the difference between end.dx4 end.=
dx6 and end.dt4 and end.dt6.  They both seem very similar.  One says xconne=
ct but other has v4 v6 lookup but for both you have to signal  L3 vpn servi=
ces sid.  Not sure why both SIDs dx dt Sid function why they cannot be comb=
ined.

I noticed this difference below that the dx4 dt4 account for the global tab=
le scenario where the PE-CE is native IPv4 or IPv6.  In the MPLS world that=
 use case is very different in that there is not any L3 vpn label and do th=
e label stack only had a single topmost label.  Also in the MPLS scenario w=
ith IPv6 global table PE-CE with a IPv4 core you require BGP -LU labeled un=
icast "send label" to label all the IPv6 prefixed tunneled over IPv4.   Sin=
ce that scenario is very different with global table does it make sense to =
have a separate End.x variant for global table for both IPv4 and IPv6.


   Note that an End.DT6 may be defined for the main IPv6 table in which

   case and End.DT6 supports the equivalent of an IPv6inIPv6

   decapsulation (without VPN/tenant implication).



     4.4<https://urldefense.com/v3/__https:/tools.ietf.org/html/draft-ietf-=
spring-srv6-network-programming-05*section-4.4__;Iw!!NEt6yMaO-gk!QzHlcRglDr=
owIq4p7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSxDhU6JAaJnI7_$>.  End.DX6: Decapsu=
lation and IPv6 cross-connect . . . . . .  12<https://urldefense.com/v3/__h=
ttps:/tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-05*pag=
e-12__;Iw!!NEt6yMaO-gk!QzHlcRglDrowIq4p7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSx=
DhU6JH8Abwf7$>

     4.5<https://urldefense.com/v3/__https:/tools.ietf.org/html/draft-ietf-=
spring-srv6-network-programming-05*section-4.5__;Iw!!NEt6yMaO-gk!QzHlcRglDr=
owIq4p7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSxDhU6JEh8sRB2$>.  End.DX4: Decapsu=
lation and IPv4 cross-connect . . . . . .  13<https://urldefense.com/v3/__h=
ttps:/tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-05*pag=
e-13__;Iw!!NEt6yMaO-gk!QzHlcRglDrowIq4p7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSx=
DhU6JHAg09NC$>

     4.6<https://urldefense.com/v3/__https:/tools.ietf.org/html/draft-ietf-=
spring-srv6-network-programming-05*section-4.6__;Iw!!NEt6yMaO-gk!QzHlcRglDr=
owIq4p7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSxDhU6JHVgWtPg$>.  End.DT6: Decapsu=
lation and specific IPv6 table lookup . .  14<https://urldefense.com/v3/__h=
ttps:/tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-05*pag=
e-14__;Iw!!NEt6yMaO-gk!QzHlcRglDrowIq4p7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSx=
DhU6JA89XfKV$>

     4.7<https://urldefense.com/v3/__https:/tools.ietf.org/html/draft-ietf-=
spring-srv6-network-programming-05*section-4.7__;Iw!!NEt6yMaO-gk!QzHlcRglDr=
owIq4p7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSxDhU6JF59SaCO$>.  End.DT4: Decapsu=
lation and specific IPv4 table lookup . .  15<https://urldefense.com/v3/__h=
ttps:/tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-05*pag=
e-15__;Iw!!NEt6yMaO-gk!QzHlcRglDrowIq4p7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSx=
DhU6JICjeckL$>



Also I was trying to understand end.dt46.



So if the PE-CE edge is dual stacked anhas both v4 and v6 you have a VRF te=
nant v4 and v6 separate peers signaled via L3 vpn services TLV.  So why do =
you need this end.dt46 sid



4.8<https://urldefense.com/v3/__https:/tools.ietf.org/html/draft-ietf-sprin=
g-srv6-network-programming-05*section-4.8__;Iw!!NEt6yMaO-gk!QzHlcRglDrowIq4=
p7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSxDhU6JMbbI6-v$>.  End.DT46: Decapsulati=
on and specific IP table lookup  . .  16<https://urldefense.com/v3/__https:=
/tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-05*page-16_=
_;Iw!!NEt6yMaO-gk!QzHlcRglDrowIq4p7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSxDhU6J=
Mihsn8k$>





Kind Regards,



Gyan


On Sun, Dec 15, 2019 at 2:06 AM Gyan Mishra <hayabusagsm@gmail.com<mailto:h=
ayabusagsm@gmail.com>> wrote:
Hi Wang

I have a question regarding the PSP, USP and USD sections I pasted below.

I just sent an email to Spring WG related to PSP and technically why that i=
s necessary as that is a legacy concept that has parity to MPLS but is not =
used today due to QOS issues.  Please see that email related to that topic.


In the PSP section can If we have to keep PSP can we add verbiage that stat=
es that PSP removal of the SRH header occurs on the Penultimate egress P no=
de.

In the USP section can we also add that all remaining SRH present in the pa=
cket are popped on the egress PE ultimate node.

In looking at these 3 SID functions the PSP and USP pop the EH and the USP =
removes the 6in6 encapsulation so that the other end.x dt4 dt6 etc can pop =
the services L3vpn headers.

Why can't the USD 6in6 encapsulation removal be done on with the USP SID?

Why does the USP and USD SID have to be separate?

4.16.1<https://urldefense.com/v3/__https:/tools.ietf.org/html/draft-ietf-sp=
ring-srv6-network-programming-05*section-4.16.1__;Iw!!NEt6yMaO-gk!QzHlcRglD=
rowIq4p7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSxDhU6JNXuPqZh$>.  PSP: Penultimat=
e Segment Pop of the SRH





   The SRH processing of the End, End.X and End.T behaviors are

   modified: after the instruction "S14.  Update IPv6 DA with Segment

   List[Segments Left]" is executed, the following instructions must be

   executed as well:



   S14.1.   If (updated SL =3D=3D 0) {

   S14.2.      Pop the SRH

   S14.3.   }



4.16.2<https://urldefense.com/v3/__https:/tools.ietf.org/html/draft-ietf-sp=
ring-srv6-network-programming-05*section-4.16.2__;Iw!!NEt6yMaO-gk!QzHlcRglD=
rowIq4p7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSxDhU6JLGcpaqu$>.  USP: Ultimate S=
egment Pop of the SRH





   The SRH processing of the End, End.X and End.T behaviors are

   modified: the instructions S02-S04 are substituted by the following

   ones:



   S02.   If (Segments Left =3D=3D 0) {

   S03.       Pop the SRH

   S04.   }



4.16.3<https://urldefense.com/v3/__https:/tools.ietf.org/html/draft-ietf-sp=
ring-srv6-network-programming-05*section-4.16.3__;Iw!!NEt6yMaO-gk!QzHlcRglD=
rowIq4p7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSxDhU6JKFZ-dKZ$>.  USD: Ultimate S=
egment Decapsulation





   The SRH processing of the End, End.X and End.T behaviors are

   modified: the instructions S02-S04 are substituted by the following

   ones:



   S02.   If (Segments Left =3D=3D 0) {

   S03.      Skip the SRH processing and proceed to the next header

   S04.   }





   Further on, the Upper-layer header processing of the End, End.X and

   End.T behaviors are modified as follows:





Kind regards,



Gyan

On Sat, Dec 14, 2019 at 9:08 PM Wang, Weibin (NSB - CN/Shanghai) <weibin.wa=
ng@nokia-sbell.com<mailto:weibin.wang@nokia-sbell.com>> wrote:
Hi Pablo:

After the 2 context assumption in previous version of this draft,  "we assu=
me that there is no other extension header than the SRH."  and  "We assume
   that the SRH may be present multiple times inside each packet", are remo=
ved in this last draft, I feel a bit confusion on USD SID, as well as combi=
nation of USD & USP.

First, within the content of this last draft, the word "Further on" marked =
red in the following pseudocode in section "4.16.3" is hard to understand i=
f the packet being processed has other EH embed between SRH and Upper-layer=
 header, such as AH or other EH, then the processing control of this packet=
 will be passed to normal IPv6 module from current SRH processing module in=
 SR-Node, so my question is : Can its control after completing AH processin=
g (for example)  be back to SRH module (or call it pseudocode module) to pr=
oceed the next header like "upper-lay header type =3D=3D41 or 4".
Or, if not, Did you created a new EH processing protocol stack instance in =
parallel to normal IPv6 module within the scope of SRH processing in SR-nod=
e.

4.16.3.  USD: Ultimate Segment Decapsulation

S02.   If (Segments Left =3D=3D 0) {
   S03.      Skip the SRH processing and proceed to the next header
   S04.   }

Further on, the Upper-layer header processing of the End, End.X and
   End.T behaviors are modified as follows:

   End:
   S01. If (Upper-layer Header type =3D=3D 41 || 4) {
   S02.    Remove the outer IPv6 Header with all its extension headers
   S03.    Submit the packet to the egress IP FIB lookup and
              transmission to the new destination
   S04. } Else {
   S05.    Send an ICMP Parameter Problem message to the Source Address
              Code 4 (SR Upper-layer Header Error),
              Pointer set to the offset of the upper-layer header.
              Interrupt packet processing and discard the packet.

   S06. }

>From my understanding, the all processing action about specific SID must be=
 completed successively. That is to say, upon USD, the upper-layer header (=
type 41 or 4) must be followed the SRH header being processed currently, or=
 second SRH following the same rule (of course, the draft not considering 2=
 or more successive SRHs).

Second, the mixed SIDs function with combination of USD and USP (even PSP&U=
SD&USP), I think, it is easy to understand when the two assumption above ex=
ist, but now I think it isn't clear if you only provide the following sente=
nce in this draft, i.e.  "if ... else..." statement:
"An implementation that supports the USD flavor in conjunction with
   the USP flavor MAY optimize the packet processing by first looking
   whether the conditions for the USD flavor are met, in which case it
   can proceed with USD processing else do USP processing."
This confusion is also described in my another mail. Of course, if the firs=
t question is addressed then this confusion does not exist.

By the way, is it really no different in text description before and after =
the two context assumption above removed?


Cheers !

WANG Weibin
_______________________________________________
spring mailing list
spring@ietf.org<mailto:spring@ietf.org>
https://www.ietf.org/mailman/listinfo/spring<https://urldefense.com/v3/__ht=
tps:/www.ietf.org/mailman/listinfo/spring__;!!NEt6yMaO-gk!QzHlcRglDrowIq4p7=
kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSxDhU6JI97MuU_$>
--
Gyan S. Mishra
IT Network Engineering & Technology
Verizon Communications Inc. (VZ)
13101 Columbia Pike FDC1 3rd Floor
Silver Spring, MD 20904
United States
Phone: 301 502-1347
Email: gyan.s.mishra@verizon.com<mailto:gyan.s.mishra@verizon.com>
www.linkedin.com/in/networking-technologies-consultant<https://urldefense.c=
om/v3/__http:/www.linkedin.com/in/networking-technologies-consultant__;!!NE=
t6yMaO-gk!QzHlcRglDrowIq4p7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSxDhU6JI36IPfx$=
>

--
Gyan S. Mishra
IT Network Engineering & Technology
Verizon Communications Inc. (VZ)
13101 Columbia Pike FDC1 3rd Floor
Silver Spring, MD 20904
United States
Phone: 301 502-1347
Email: gyan.s.mishra@verizon.com<mailto:gyan.s.mishra@verizon.com>
www.linkedin.com/in/networking-technologies-consultant<https://urldefense.c=
om/v3/__http:/www.linkedin.com/in/networking-technologies-consultant__;!!NE=
t6yMaO-gk!QzHlcRglDrowIq4p7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSxDhU6JI36IPfx$=
>


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<div class=3D"WordSection1">
<p class=3D"MsoNormal">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Got it. I assume the next version of the draft will =
reflect this point.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0in;margin=
-bottom:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b>From:</b> Pablo Camarillo (pcamaril) &lt;pcamaril=
@cisco.com&gt;
<br>
<b>Sent:</b> Tuesday, January 7, 2020 4:15 AM<br>
<b>To:</b> Ron Bonica &lt;rbonica@juniper.net&gt;<br>
<b>Cc:</b> weibin.wang@nokia-sbell.com; hayabusagsm@gmail.com; spring@ietf.=
org; daniel.voyer@bell.ca<br>
<b>Subject:</b> Re: [spring] End.DT/End.DX SIDs (was Re: USD/USP question i=
n draft-ietf-spring-srv6-network-programming-06.txt)<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Ron,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Happy New Year.<o:p></o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">You may have forgotten the conv=
ersation that we had in December where I replied to this same question.
</span><span lang=3D"ES"><a href=3D"https://urldefense.com/v3/__https:/mail=
archive.ietf.org/arch/msg/spring/d45B3wI5UBliIE0aoJPU-PDNe7w__;!!NEt6yMaO-g=
k!XKmHVwgLn4vuKpN5tc78Y9KVNQ7X4UvurW4R5WG0WOGrk8w2HNKcj3dullEiyCJy$"><span =
lang=3D"EN-US">https://mailarchive.ietf.org/arch/msg/spring/d45B3wI5UBliIE0=
aoJPU-PDNe7w</span></a></span><span lang=3D"EN-GB"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Please re-read that thread and =
let me know if it is still unclear.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Thanks,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Pablo.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><span style=3D"font-si=
ze:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">Ron Bonica &lt;<a h=
ref=3D"mailto:rbonica@juniper.net">rbonica@juniper.net</a>&gt;<br>
<b>Date: </b>Sunday, 29 December 2019 at 18:38<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;<a href=3D"mailto:pca=
maril@cisco.com">pcamaril@cisco.com</a>&gt;, &quot;<a href=3D"mailto:weibin=
.wang@nokia-sbell.com">weibin.wang@nokia-sbell.com</a>&quot; &lt;<a href=3D=
"mailto:weibin.wang@nokia-sbell.com">weibin.wang@nokia-sbell.com</a>&gt;,
 &quot;<a href=3D"mailto:hayabusagsm@gmail.com">hayabusagsm@gmail.com</a>&q=
uot; &lt;<a href=3D"mailto:hayabusagsm@gmail.com">hayabusagsm@gmail.com</a>=
&gt;<br>
<b>Cc: </b>&quot;<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&quo=
t; &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&gt;, &quot;Vo=
yer, Daniel&quot; &lt;<a href=3D"mailto:daniel.voyer@bell.ca">daniel.voyer@=
bell.ca</a>&gt;<br>
<b>Subject: </b>RE: [spring] End.DT/End.DX SIDs (was Re: USD/USP question i=
n draft-ietf-spring-srv6-network-programming-06.txt)<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><o:p>&nbsp;</o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Camillo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">I may be misunderstanding=
 something. Do the numeric constants defined in Section 9.2.1 of draft-ietf=
-spring-srv6-network programming appear in SIDs?
<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">For example, assume that =
a node advertises the locator 2001:db8:0:1::/64. Can we assume that all END=
.DX6 SIDs instantiated on that node will be drawn from &nbsp;2001:db8:0:1:1=
0::/80?<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.00=
01pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b>From:</b> Pablo Camari=
llo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco.com">pcamaril@cisco.com=
</a>&gt;
<br>
<b>Sent:</b> Friday, December 20, 2019 12:31 PM<br>
<b>To:</b> <a href=3D"mailto:weibin.wang@nokia-sbell.com">weibin.wang@nokia=
-sbell.com</a>;
<a href=3D"mailto:hayabusagsm@gmail.com">hayabusagsm@gmail.com</a>; Ron Bon=
ica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@juniper.net</a>&gt;<=
br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>; Voyer, D=
aniel &lt;<a href=3D"mailto:daniel.voyer@bell.ca">daniel.voyer@bell.ca</a>&=
gt;<br>
<b>Subject:</b> Re: [spring] End.DT/End.DX SIDs (was Re: USD/USP question i=
n draft-ietf-spring-srv6-network-programming-06.txt)<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">Ron,=
 Gyan,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Sections 4.4 to 4.8 of dr=
aft-ietf-spring-srv6-network-programming define the local dataplane process=
ing on the egress PE.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">As far as L3VPN signaling=
 is concerned [draft-ietf-bess-srv6-services], the egress PE signals opaque=
 behavior for the SID, so it is transparent to the control plane. Whether t=
he egress PE is doing End.DX or End.DT
 is transparent to the ingress PE.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Happy holidays,<o:p></o:p=
></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Pablo.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">&nbs=
p;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b><span style=3D"font-s=
ize:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">Ron Bonica &lt;</sp=
an><span lang=3D"ES"><a href=3D"mailto:rbonica@juniper.net"><span lang=3D"E=
N-US" style=3D"font-size:12.0pt">rbonica@juniper.net</span></a></span><span=
 style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Thursday, 19 December 2019 at 17:29<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><span lang=3D"=
ES"><a href=3D"mailto:pcamaril@cisco.com"><span lang=3D"EN-US" style=3D"fon=
t-size:12.0pt">pcamaril@cisco.com</span></a></span><span style=3D"font-size=
:12.0pt;color:black">&gt;, &quot;Wang, Weibin (NSB - CN/Shanghai)&quot;
 &lt;</span><span lang=3D"ES"><a href=3D"mailto:weibin.wang@nokia-sbell.com=
"><span lang=3D"EN-US" style=3D"font-size:12.0pt">weibin.wang@nokia-sbell.c=
om</span></a></span><span style=3D"font-size:12.0pt;color:black">&gt;, Gyan=
 Mishra &lt;</span><span lang=3D"ES"><a href=3D"mailto:hayabusagsm@gmail.co=
m"><span lang=3D"EN-US" style=3D"font-size:12.0pt">hayabusagsm@gmail.com</s=
pan></a></span><span style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Cc: </b>&quot;</span><span lang=3D"ES"><a href=3D"mailto:spring@ietf.org=
"><span lang=3D"EN-US" style=3D"font-size:12.0pt">spring@ietf.org</span></a=
></span><span style=3D"font-size:12.0pt;color:black">&quot; &lt;</span><spa=
n lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><span lang=3D"EN-US" style=
=3D"font-size:12.0pt">spring@ietf.org</span></a></span><span style=3D"font-=
size:12.0pt;color:black">&gt;,
 &quot;Voyer, Daniel&quot; &lt;</span><span lang=3D"ES"><a href=3D"mailto:d=
aniel.voyer@bell.ca"><span lang=3D"EN-US" style=3D"font-size:12.0pt">daniel=
.voyer@bell.ca</span></a></span><span style=3D"font-size:12.0pt;color:black=
">&gt;<br>
<b>Subject: </b>RE: [spring] End.DT/End.DX SIDs (was Re: USD/USP question i=
n draft-ietf-spring-srv6-network-programming-06.txt)</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">In L3VPN, all of these a=
re combined into a single 20-bit MPLS label. Why can SRv6 not do likewise?<=
o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:0in;margin-right:0in;margin-bottom:0in;margin-left:1.0in;margin-bottom:.0=
001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b>From:</b> spring &lt;=
<span lang=3D"ES"><a href=3D"mailto:spring-bounces@ietf.org"><span lang=3D"=
EN-US">spring-bounces@ietf.org</span></a></span>&gt;
<b>On Behalf Of </b>Pablo Camarillo (pcamaril)<br>
<b>Sent:</b> Thursday, December 19, 2019 6:47 AM<br>
<b>To:</b> Wang, Weibin (NSB - CN/Shanghai) &lt;<span lang=3D"ES"><a href=
=3D"mailto:weibin.wang@nokia-sbell.com"><span lang=3D"EN-US">weibin.wang@no=
kia-sbell.com</span></a></span>&gt;; Gyan Mishra &lt;<span lang=3D"ES"><a h=
ref=3D"mailto:hayabusagsm@gmail.com"><span lang=3D"EN-US">hayabusagsm@gmail=
.com</span></a></span>&gt;<br>
<b>Cc:</b> <span lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><span lang=
=3D"EN-US">spring@ietf.org</span></a></span>; Voyer, Daniel &lt;<span lang=
=3D"ES"><a href=3D"mailto:daniel.voyer@bell.ca"><span lang=3D"EN-US">daniel=
.voyer@bell.ca</span></a></span>&gt;<br>
<b>Subject:</b> [spring] End.DT/End.DX SIDs (was Re: USD/USP question in dr=
aft-ietf-spring-srv6-network-programming-06.txt)<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">Gya=
n,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">The=
 End.DX4/End.DX6 can be seen as an equivalent to the MPLS per-CE VPN label.=
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">The=
 End.DT4/End.DT6 can be seen as an equivalent to the MPLS per-VRF VPN label=
.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">I b=
elieve that they cannot be combined.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">Che=
ers,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">Pab=
lo.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><b><span style=3D"font-s=
ize:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">Gyan Mishra &lt;</s=
pan><span lang=3D"ES"><a href=3D"mailto:hayabusagsm@gmail.com"><span lang=
=3D"EN-US" style=3D"font-size:12.0pt">hayabusagsm@gmail.com</span></a></spa=
n><span style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Sunday, 15 December 2019 at 08:29<br>
<b>To: </b>&quot;Wang, Weibin (NSB - CN/Shanghai)&quot; &lt;</span><span la=
ng=3D"ES"><a href=3D"mailto:weibin.wang@nokia-sbell.com"><span lang=3D"EN-U=
S" style=3D"font-size:12.0pt">weibin.wang@nokia-sbell.com</span></a></span>=
<span style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Cc: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><span lang=3D"=
ES"><a href=3D"mailto:pcamaril@cisco.com"><span lang=3D"EN-US" style=3D"fon=
t-size:12.0pt">pcamaril@cisco.com</span></a></span><span style=3D"font-size=
:12.0pt;color:black">&gt;, &quot;Voyer, Daniel&quot; &lt;</span><span lang=
=3D"ES"><a href=3D"mailto:daniel.voyer@bell.ca"><span lang=3D"EN-US" style=
=3D"font-size:12.0pt">daniel.voyer@bell.ca</span></a></span><span style=3D"=
font-size:12.0pt;color:black">&gt;,
 &quot;</span><span lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><span la=
ng=3D"EN-US" style=3D"font-size:12.0pt">spring@ietf.org</span></a></span><s=
pan style=3D"font-size:12.0pt;color:black">&quot; &lt;</span><span lang=3D"=
ES"><a href=3D"mailto:spring@ietf.org"><span lang=3D"EN-US" style=3D"font-s=
ize:12.0pt">spring@ietf.org</span></a></span><span style=3D"font-size:12.0p=
t;color:black">&gt;<br>
<b>Subject: </b>Re: [spring] USD/USP question in draft-ietf-spring-srv6-net=
work-programming-06.txt</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
</div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">Hi Wang &amp; Pablo &amp=
; Spring Authors,<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">Had another question?<o:=
p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">These 4 sections.&nbsp; =
Trying to understand the difference between end.dx4 end.dx6 and end.dt4 and=
 end.dt6.&nbsp; They both seem very similar.&nbsp; One says xconnect but ot=
her has v4 v6 lookup but for both you have to signal
 &nbsp;L3 vpn services sid.&nbsp; Not sure why both SIDs dx dt Sid function=
 why they cannot be combined.<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">I noticed this differenc=
e below that the dx4 dt4 account for the global table scenario where the PE=
-CE is native IPv4 or IPv6.&nbsp; In the MPLS world that use case is very d=
ifferent in that there is not any L3 vpn
 label and do the label stack only had a single topmost label.&nbsp; Also i=
n the MPLS scenario with IPv6 global table PE-CE with a IPv4 core you requi=
re BGP -LU labeled unicast &#8220;send label&#8221; to label all the IPv6 p=
refixed tunneled over IPv4. &nbsp; Since that scenario
 is very different with global table does it make sense to have a separate =
End.x variant for global table for both IPv4 and IPv6.<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
</div>
<div>
<pre style=3D"margin-left:1.5in;break-before:page"><span style=3D"font-size=
:11.0pt">&nbsp;&nbsp; Note that an End.DT6 may be defined for the main IPv6=
 table in which</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"font-size:11.0pt">&nbsp;&nb=
sp; case and End.DT6 supports the equivalent of an IPv6inIPv6</span><o:p></=
o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"font-size:11.0pt">&nbsp;&nb=
sp; decapsulation (without VPN/tenant implication).</span><o:p></o:p></pre>
</div>
<div>
<pre style=3D"margin-left:1.5in;break-before:page"><span style=3D"font-size=
:11.0pt">&nbsp;</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in;break-before:page"><span style=3D"font-size=
:11.0pt">&nbsp;&nbsp;&nbsp;&nbsp; </span><span lang=3D"ES"><a href=3D"https=
://urldefense.com/v3/__https:/tools.ietf.org/html/draft-ietf-spring-srv6-ne=
twork-programming-05*section-4.4__;Iw!!NEt6yMaO-gk!QzHlcRglDrowIq4p7kbUU8tN=
wsbwrneoRiLDYAClyLIXp1ZLWOSxDhU6JAaJnI7_$"><span lang=3D"EN-US" style=3D"fo=
nt-size:11.0pt">4.4</span></a></span><span style=3D"font-size:11.0pt">.&nbs=
p; End.DX6: Decapsulation and IPv6 cross-connect . . . . . .&nbsp; </span><=
span lang=3D"ES"><a href=3D"https://urldefense.com/v3/__https:/tools.ietf.o=
rg/html/draft-ietf-spring-srv6-network-programming-05*page-12__;Iw!!NEt6yMa=
O-gk!QzHlcRglDrowIq4p7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSxDhU6JH8Abwf7$"><sp=
an lang=3D"EN-US" style=3D"font-size:11.0pt">12</span></a></span><o:p></o:p=
></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"font-size:11.0pt">&nbsp;&nb=
sp;&nbsp;&nbsp; </span><span lang=3D"ES"><a href=3D"https://urldefense.com/=
v3/__https:/tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-=
05*section-4.5__;Iw!!NEt6yMaO-gk!QzHlcRglDrowIq4p7kbUU8tNwsbwrneoRiLDYAClyL=
IXp1ZLWOSxDhU6JEh8sRB2$"><span lang=3D"EN-US" style=3D"font-size:11.0pt">4.=
5</span></a></span><span style=3D"font-size:11.0pt">.&nbsp; End.DX4: Decaps=
ulation and IPv4 cross-connect . . . . . .&nbsp; </span><span lang=3D"ES"><=
a href=3D"https://urldefense.com/v3/__https:/tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-05*page-13__;Iw!!NEt6yMaO-gk!QzHlcRglDrowI=
q4p7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSxDhU6JHAg09NC$"><span lang=3D"EN-US" =
style=3D"font-size:11.0pt">13</span></a></span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"font-size:11.0pt">&nbsp;&nb=
sp;&nbsp;&nbsp; </span><span lang=3D"ES"><a href=3D"https://urldefense.com/=
v3/__https:/tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-=
05*section-4.6__;Iw!!NEt6yMaO-gk!QzHlcRglDrowIq4p7kbUU8tNwsbwrneoRiLDYAClyL=
IXp1ZLWOSxDhU6JHVgWtPg$"><span lang=3D"EN-US" style=3D"font-size:11.0pt">4.=
6</span></a></span><span style=3D"font-size:11.0pt">.&nbsp; End.DT6: Decaps=
ulation and specific IPv6 table lookup . .&nbsp; </span><span lang=3D"ES"><=
a href=3D"https://urldefense.com/v3/__https:/tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-05*page-14__;Iw!!NEt6yMaO-gk!QzHlcRglDrowI=
q4p7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSxDhU6JA89XfKV$"><span lang=3D"EN-US" =
style=3D"font-size:11.0pt">14</span></a></span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"font-size:11.0pt">&nbsp;&nb=
sp;&nbsp;&nbsp; </span><span lang=3D"ES"><a href=3D"https://urldefense.com/=
v3/__https:/tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-=
05*section-4.7__;Iw!!NEt6yMaO-gk!QzHlcRglDrowIq4p7kbUU8tNwsbwrneoRiLDYAClyL=
IXp1ZLWOSxDhU6JF59SaCO$"><span lang=3D"EN-US" style=3D"font-size:11.0pt">4.=
7</span></a></span><span style=3D"font-size:11.0pt">.&nbsp; End.DT4: Decaps=
ulation and specific IPv4 table lookup . .&nbsp; </span><span lang=3D"ES"><=
a href=3D"https://urldefense.com/v3/__https:/tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-05*page-15__;Iw!!NEt6yMaO-gk!QzHlcRglDrowI=
q4p7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSxDhU6JICjeckL$"><span lang=3D"EN-US" =
style=3D"font-size:11.0pt">15</span></a></span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in;break-before:page"><span style=3D"font-size=
:11.0pt">&nbsp;</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in;break-before:page"><span style=3D"font-size=
:11.0pt">Also I was trying to understand end.dt46.</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in;break-before:page"><span style=3D"font-size=
:11.0pt">&nbsp;</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in;break-before:page"><span style=3D"font-size=
:11.0pt">So if the PE-CE edge is dual stacked anhas both v4 and v6 you have=
 a VRF tenant v4 and v6 separate peers signaled via L3 vpn services TLV.&nb=
sp; So why do you need this end.dt46 sid</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in;break-before:page"><span style=3D"font-size=
:11.0pt">&nbsp;</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in;break-before:page"><span lang=3D"ES"><a hre=
f=3D"https://urldefense.com/v3/__https:/tools.ietf.org/html/draft-ietf-spri=
ng-srv6-network-programming-05*section-4.8__;Iw!!NEt6yMaO-gk!QzHlcRglDrowIq=
4p7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSxDhU6JMbbI6-v$"><span lang=3D"EN-US" s=
tyle=3D"font-size:11.0pt;font-family:HelveticaNeue">4.8</span></a></span><s=
pan style=3D"font-size:11.0pt;font-family:HelveticaNeue">.&nbsp; End.DT46: =
Decapsulation and specific IP table lookup&nbsp; . .&nbsp; </span><span lan=
g=3D"ES"><a href=3D"https://urldefense.com/v3/__https:/tools.ietf.org/html/=
draft-ietf-spring-srv6-network-programming-05*page-16__;Iw!!NEt6yMaO-gk!QzH=
lcRglDrowIq4p7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSxDhU6JMihsn8k$"><span lang=
=3D"EN-US" style=3D"font-size:11.0pt;font-family:HelveticaNeue">16</span></=
a></span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in;break-before:page"><span style=3D"font-size=
:11.0pt">&nbsp;&nbsp;&nbsp;&nbsp; </span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in;break-before:page"><span style=3D"font-size=
:11.0pt">&nbsp;</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in;break-before:page"><span style=3D"font-size=
:11.0pt">Kind Regards,</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in;break-before:page"><span style=3D"font-size=
:11.0pt">&nbsp;</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in;break-before:page"><span style=3D"font-size=
:11.0pt">Gyan</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in;break-before:page"><span style=3D"font-size=
:11.0pt">&nbsp;</span><o:p></o:p></pre>
</div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">On Sun, Dec 15, 2019 at =
2:06 AM Gyan Mishra &lt;<span lang=3D"ES"><a href=3D"mailto:hayabusagsm@gma=
il.com"><span lang=3D"EN-US">hayabusagsm@gmail.com</span></a></span>&gt; wr=
ote:<o:p></o:p></p>
</div>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0i=
n 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-=
bottom:5.0pt">
<div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#31=
3131">Hi Wang</span><o:p></o:p></p>
</div>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#31=
3131">&nbsp;</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#31=
3131">I have a question regarding the PSP, USP and USD sections I pasted be=
low.</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#31=
3131">&nbsp;</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#31=
3131">I just sent an email to Spring WG related to PSP and technically why =
that is necessary as that is a legacy concept that has parity to MPLS but i=
s not used today due to QOS issues.&nbsp; Please
 see that email related to that topic.</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#31=
3131">&nbsp;</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#31=
3131">&nbsp;</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#31=
3131">In the PSP section can If we have to keep PSP can we add verbiage tha=
t states that PSP removal of the SRH header occurs on the Penultimate egres=
s P node.</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#31=
3131">&nbsp;</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#31=
3131">In the USP section can we also add that all remaining SRH present in =
the packet are popped on the egress PE ultimate node.</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#31=
3131">&nbsp;</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#31=
3131">In looking at these 3 SID functions the PSP and USP pop the EH and th=
e USP removes the 6in6 encapsulation so that the other end.x dt4 dt6 etc ca=
n pop the services L3vpn headers.</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#31=
3131">&nbsp;</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#31=
3131">Why can&#8217;t the USD 6in6 encapsulation removal be done on with th=
e USP SID?</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#31=
3131">&nbsp;</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#31=
3131">Why does the USP and USD SID have to be separate?</span><o:p></o:p></=
p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#31=
3131">&nbsp;</span><o:p></o:p></p>
</div>
<div>
<h4 style=3D"margin-left:1.5in"><span lang=3D"ES"><a href=3D"https://urldef=
ense.com/v3/__https:/tools.ietf.org/html/draft-ietf-spring-srv6-network-pro=
gramming-05*section-4.16.1__;Iw!!NEt6yMaO-gk!QzHlcRglDrowIq4p7kbUU8tNwsbwrn=
eoRiLDYAClyLIXp1ZLWOSxDhU6JNXuPqZh$" target=3D"_blank"><span lang=3D"EN-US"=
 style=3D"font-family:&quot;Courier New&quot;;color:black;text-decoration:n=
one">4.16.1</span></a></span><span style=3D"font-family:&quot;Courier New&q=
uot;;color:#313131">.&nbsp;
 PSP: Penultimate Segment Pop of the SRH</span><o:p></o:p></h4>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;</span=
><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;</span=
><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;&nbsp;=
 The SRH processing of the End, End.X and End.T behaviors are</span><o:p></=
o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;&nbsp;=
 modified: after the instruction &quot;S14.&nbsp; Update IPv6 DA with Segme=
nt</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;&nbsp;=
 List[Segments Left]&quot; is executed, the following instructions must be<=
/span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;&nbsp;=
 executed as well:</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;</span=
><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;&nbsp;=
 S14.1.&nbsp;&nbsp; If (updated SL =3D=3D 0) {</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;&nbsp;=
 S14.2.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Pop the SRH</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;&nbsp;=
 S14.3.&nbsp;&nbsp; }</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;</span=
><o:p></o:p></pre>
<h4 style=3D"margin-left:1.5in;font-size:1rem"><span lang=3D"ES"><a href=3D=
"https://urldefense.com/v3/__https:/tools.ietf.org/html/draft-ietf-spring-s=
rv6-network-programming-05*section-4.16.2__;Iw!!NEt6yMaO-gk!QzHlcRglDrowIq4=
p7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSxDhU6JLGcpaqu$" target=3D"_blank"><span=
 lang=3D"EN-US" style=3D"font-family:&quot;Courier New&quot;;color:black;te=
xt-decoration:none">4.16.2</span></a></span><span style=3D"font-family:&quo=
t;Courier New&quot;;color:#313131">.&nbsp;
 USP: Ultimate Segment Pop of the SRH</span><o:p></o:p></h4>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;</span=
><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;</span=
><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;&nbsp;=
 The SRH processing of the End, End.X and End.T behaviors are</span><o:p></=
o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;&nbsp;=
 modified: the instructions S02-S04 are substituted by the following</span>=
<o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;&nbsp;=
 ones:</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;</span=
><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;&nbsp;=
 S02.&nbsp;&nbsp; If (Segments Left =3D=3D 0) {</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;&nbsp;=
 S03.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Pop the SRH</span><o:p></o:p></pr=
e>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;&nbsp;=
 S04.&nbsp;&nbsp; }</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;</span=
><o:p></o:p></pre>
<div>
<h4 style=3D"margin-left:1.5in;font-size:1rem"><span lang=3D"ES"><a href=3D=
"https://urldefense.com/v3/__https:/tools.ietf.org/html/draft-ietf-spring-s=
rv6-network-programming-05*section-4.16.3__;Iw!!NEt6yMaO-gk!QzHlcRglDrowIq4=
p7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSxDhU6JKFZ-dKZ$" target=3D"_blank"><span=
 lang=3D"EN-US" style=3D"font-family:&quot;Courier New&quot;;color:black;te=
xt-decoration:none">4.16.3</span></a></span><a name=3D"m_268550727981185951=
2_m_-752785492408952"></a><span style=3D"font-family:&quot;Courier New&quot=
;;color:#757575">.&nbsp;
 USD: Ultimate Segment Decapsulation</span><o:p></o:p></h4>
</div>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;</span=
><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;</span=
><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;&nbsp;=
 The SRH processing of the End, End.X and End.T behaviors are</span><o:p></=
o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;&nbsp;=
 modified: the instructions S02-S04 are substituted by the following</span>=
<o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;&nbsp;=
 ones:</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;</span=
><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;&nbsp;=
 S02.&nbsp;&nbsp; If (Segments Left =3D=3D 0) {</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;&nbsp;=
 S03.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Skip the SRH processing and proceed to =
the next header</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;&nbsp;=
 S04.&nbsp;&nbsp; }</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;</span=
><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;</span=
><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;&nbsp;=
 Further on, the Upper-layer header processing of the End, End.X and</span>=
<o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span style=3D"color:#313131">&nbsp;&nbsp;=
 End.T behaviors are modified as follows:</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in;white-space:pre-wrap;font-size:1rem;break-b=
efore:page"><span style=3D"color:#313131">&nbsp;</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in;white-space:pre-wrap;font-size:1rem;break-b=
efore:page"><span style=3D"color:#313131">&nbsp;</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in;white-space:pre-wrap;font-size:1rem;break-b=
efore:page"><span style=3D"color:#313131">Kind regards,</span><o:p></o:p></=
pre>
<pre style=3D"margin-left:1.5in;white-space:pre-wrap;font-size:1rem;break-b=
efore:page"><span style=3D"color:#313131">&nbsp;</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in;white-space:pre-wrap;font-size:1rem;break-b=
efore:page"><span style=3D"color:#313131">Gyan</span><o:p></o:p></pre>
</div>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
</div>
<div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">On Sat, Dec 14, 2019 at =
9:08 PM Wang, Weibin (NSB - CN/Shanghai) &lt;<span lang=3D"ES"><a href=3D"m=
ailto:weibin.wang@nokia-sbell.com" target=3D"_blank"><span lang=3D"EN-US">w=
eibin.wang@nokia-sbell.com</span></a></span>&gt; wrote:<o:p></o:p></p>
</div>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0i=
n 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-=
bottom:5.0pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
Hi Pablo:<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;word-break:break-all">
After the 2 context assumption in previous version of this draft, &nbsp;&#8=
220;<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;col=
or:black;background:#FFFDF5">we assume that there is no other extension hea=
der than the SRH.</span>&#8221; &nbsp;and &nbsp;&#8220;<span style=3D"font-=
size:10.5pt;font-family:&quot;Courier New&quot;;color:black;background:#FFF=
DF5">We
 assume</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;word-break:break-all">
<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;color:b=
lack;background:#FFFDF5">&nbsp;&nbsp; that the SRH may be present multiple =
times inside each packet</span>&#8221;, are removed in this last draft, I f=
eel a bit confusion on USD SID, as well as combination of USD
 &amp; USP.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
First, within the content of this last draft, the word &#8220;Further on&#8=
221; marked red in the following pseudocode in section &#8220;4.16.3&#8221;=
 is hard to understand if the packet being processed has other EH embed bet=
ween SRH and Upper-layer header, such as AH or other EH,
 then the processing control of this packet will be passed to normal IPv6 m=
odule from current SRH processing module in SR-Node, so my question is : Ca=
n its control after completing AH processing (for example) &nbsp;be back to=
 SRH module (or call it pseudocode module)
 to proceed the next header like &#8220;upper-lay header type =3D=3D41 or 4=
&#8221;.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
Or, if not, Did you created a new EH processing protocol stack instance in =
parallel to normal IPv6 module within the scope of SRH processing in SR-nod=
e.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;color:b=
lack;background:#FFFDF5">4.16.3.&nbsp; USD: Ultimate Segment Decapsulation<=
/span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;word-break:break-all">
<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;color:b=
lack;background:#FFFDF5">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;word-break:break-all">
<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;color:b=
lack;background:#FFFDF5">S02.&nbsp;&nbsp; If (Segments Left =3D=3D 0) {</sp=
an><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;word-break:break-all">
<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;color:b=
lack;background:#FFFDF5">&nbsp;&nbsp; S03.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Sk=
ip the SRH processing and proceed to the next header</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;color:b=
lack;background:#FFFDF5">&nbsp;&nbsp; S04.&nbsp;&nbsp; }</span><o:p></o:p><=
/p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;word-break:break-all">
<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;color:r=
ed;background:#FFFDF5">Further on,
</span><span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;=
color:black;background:#FFFDF5">the Upper-layer header processing of the En=
d, End.X and</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;word-break:break-all">
<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;color:b=
lack;background:#FFFDF5">&nbsp;&nbsp; End.T behaviors are modified as follo=
ws:</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;word-break:break-all">
<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;color:b=
lack;background:#FFFDF5">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;word-break:break-all">
<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;color:b=
lack;background:#FFFDF5">&nbsp;&nbsp; End:</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;word-break:break-all">
<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;color:b=
lack;background:#FFFDF5">&nbsp;&nbsp; S01. If (Upper-layer Header type =3D=
=3D 41 || 4) {</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;word-break:break-all">
<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;color:b=
lack;background:#FFFDF5">&nbsp;&nbsp; S02.&nbsp;&nbsp;&nbsp; Remove the out=
er IPv6 Header with all its extension headers</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;word-break:break-all">
<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;color:b=
lack;background:#FFFDF5">&nbsp;&nbsp; S03.&nbsp;&nbsp;&nbsp; Submit the pac=
ket to the egress IP FIB lookup and</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;word-break:break-all">
<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;color:b=
lack;background:#FFFDF5">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp; transmission to the new destination</span><o:p=
></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;word-break:break-all">
<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;color:b=
lack;background:#FFFDF5">&nbsp;&nbsp; S04. } Else {</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;word-break:break-all">
<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;color:b=
lack;background:#FFFDF5">&nbsp;&nbsp; S05.&nbsp;&nbsp;&nbsp; Send an ICMP P=
arameter Problem message to the Source Address</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;word-break:break-all">
<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;color:b=
lack;background:#FFFDF5">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp; Code 4 (SR Upper-layer Header Error),</span><o=
:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;word-break:break-all">
<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;color:b=
lack;background:#FFFDF5">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp; Pointer set to the offset of the upper-layer h=
eader.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;word-break:break-all">
<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;color:b=
lack;background:#FFFDF5">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp; Interrupt packet processing and discard the pa=
cket.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;word-break:break-all">
<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;color:b=
lack;background:#FFFDF5">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;color:b=
lack;background:#FFFDF5">&nbsp;&nbsp; S06. }</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
>From my understanding, the all processing action about specific SID must be=
 completed successively. That is to say, upon USD, the upper-layer header (=
type 41 or 4) must be followed the SRH header being processed currently, or=
 second SRH following the same rule
 (of course, the draft not considering 2 or more successive SRHs). <o:p></o=
:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
Second, the mixed SIDs function with combination of USD and USP (even PSP&a=
mp;USD&amp;USP), I think, it is easy to understand when the two assumption =
above exist, but now I think it isn&#8217;t clear if you only provide the f=
ollowing sentence in this draft, i.e. &nbsp;&#8220;if &#8230; else&#8230;&#=
8221;
 statement:<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;word-break:break-all">
&#8220;<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;=
color:black;background:#FFFDF5">An implementation that supports the USD fla=
vor in conjunction with</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;word-break:break-all">
<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;color:b=
lack;background:#FFFDF5">&nbsp;&nbsp; the USP flavor MAY optimize the packe=
t processing by first looking</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;word-break:break-all">
<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;color:b=
lack;background:#FFFDF5">&nbsp;&nbsp; whether the conditions for the USD fl=
avor are met, in which case it</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
<span style=3D"font-size:10.5pt;font-family:&quot;Courier New&quot;;color:b=
lack;background:#FFFDF5">&nbsp;&nbsp; can proceed with USD processing else =
do USP processing.</span>&#8221;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
This confusion is also described in my another mail. Of course, if the firs=
t question is addressed then this confusion does not exist.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
By the way, is it really no different in text description before and after =
the two context assumption above removed?<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;text-align:justify">
<i><span style=3D"font-size:10.5pt;font-family:&quot;Times New Roman&quot;,=
serif">Cheers !</span></i><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;text-align:justify">
<b><span style=3D"font-size:10.5pt;font-family:&quot;Times New Roman&quot;,=
serif">&nbsp;</span></b><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;text-align:justify">
<b><span style=3D"font-size:10.5pt;font-family:&quot;Times New Roman&quot;,=
serif">WANG Weibin</span></b><o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">________________________=
_______________________<br>
spring mailing list<br>
<span lang=3D"ES"><a href=3D"mailto:spring@ietf.org" target=3D"_blank"><spa=
n lang=3D"EN-US">spring@ietf.org</span></a></span><br>
<span lang=3D"ES"><a href=3D"https://urldefense.com/v3/__https:/www.ietf.or=
g/mailman/listinfo/spring__;!!NEt6yMaO-gk!QzHlcRglDrowIq4p7kbUU8tNwsbwrneoR=
iLDYAClyLIXp1ZLWOSxDhU6JI97MuU_$" target=3D"_blank"><span lang=3D"EN-US">ht=
tps://www.ietf.org/mailman/listinfo/spring</span></a></span><o:p></o:p></p>
</blockquote>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">-- <o:p></o:p></p>
<div>
<div>
<div>
<div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
<span style=3D"color:#500050">Gyan S. Mishra</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
<span style=3D"color:#500050">IT Network Engineering &amp; Technology&nbsp;=
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
<span style=3D"color:#500050">Verizon Communications&nbsp;Inc. (VZ)</span><=
o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
<span style=3D"color:#500050">13101 Columbia Pike FDC1 3rd Floor</span><o:p=
></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
<span style=3D"color:#500050">Silver Spring, MD 20904</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
<span style=3D"color:#500050">United States</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;background-image:initial;background-position:init=
ial;background-repeat:initial">
<span style=3D"color:#500050">Phone:&nbsp;301 502-1347</span><o:p></o:p></p=
>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;background-image:initial;background-position:init=
ial;background-repeat:initial">
<span style=3D"color:#500050">Email:&nbsp;</span><span lang=3D"ES"><a href=
=3D"mailto:gyan.s.mishra@verizon.com" target=3D"_blank"><span lang=3D"EN-US=
" style=3D"color:#1155CC">gyan.s.mishra@verizon.com</span></a></span><o:p><=
/o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;background-image:initial;background-position:init=
ial;background-repeat:initial">
<span lang=3D"ES"><a href=3D"https://urldefense.com/v3/__http:/www.linkedin=
.com/in/networking-technologies-consultant__;!!NEt6yMaO-gk!QzHlcRglDrowIq4p=
7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSxDhU6JI36IPfx$" target=3D"_blank"><span =
lang=3D"EN-US" style=3D"font-family:&quot;Arial&quot;,sans-serif;border:non=
e windowtext 1.0pt;padding:0in">www.linkedin.com/in/networking-technologies=
-consultant</span></a></span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
</div>
</blockquote>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">-- <o:p></o:p></p>
<div>
<div>
<div>
<div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
<span style=3D"color:#500050">Gyan S. Mishra</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
<span style=3D"color:#500050">IT Network Engineering &amp; Technology&nbsp;=
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
<span style=3D"color:#500050">Verizon Communications&nbsp;Inc. (VZ)</span><=
o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
<span style=3D"color:#500050">13101 Columbia Pike FDC1 3rd Floor</span><o:p=
></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
<span style=3D"color:#500050">Silver Spring, MD 20904</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in">
<span style=3D"color:#500050">United States</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;background-image:initial;background-position:init=
ial;background-repeat:initial">
<span style=3D"color:#500050">Phone:&nbsp;301 502-1347</span><o:p></o:p></p=
>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;background-image:initial;background-position:init=
ial;background-repeat:initial">
<span style=3D"color:#500050">Email:&nbsp;</span><span lang=3D"ES"><a href=
=3D"mailto:gyan.s.mishra@verizon.com" target=3D"_blank"><span lang=3D"EN-US=
" style=3D"color:#1155CC">gyan.s.mishra@verizon.com</span></a></span><o:p><=
/o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.5in;background-image:initial;background-position:init=
ial;background-repeat:initial">
<span lang=3D"ES"><a href=3D"https://urldefense.com/v3/__http:/www.linkedin=
.com/in/networking-technologies-consultant__;!!NEt6yMaO-gk!QzHlcRglDrowIq4p=
7kbUU8tNwsbwrneoRiLDYAClyLIXp1ZLWOSxDhU6JI36IPfx$" target=3D"_blank"><span =
lang=3D"EN-US" style=3D"font-family:&quot;Arial&quot;,sans-serif;border:non=
e windowtext 1.0pt;padding:0in">www.linkedin.com/in/networking-technologies=
-consultant</span></a></span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
</div>
</div>
</div>
</div>
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From: Ron Bonica <rbonica@juniper.net>
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
CC: SPRING WG <spring@ietf.org>
Thread-Topic: [spring] SRv6 Network Programming - ICMP Source Address Selection
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/9o-zzwsp_0XcdSXwMBw6YIjHSaA>
Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Selection
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Content-Type: text/plain; charset="us-ascii"
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Pablo,

Let me try to ask the question another way:


  1.  Is it generally acceptable for a SID to appear in the source address =
field of an IPv6 header?
  2.  Can an exception be made for ICMP messages?

I think that the answer to the first question is "no", because doing so wou=
ld break ICMP. Think about what would happen if:


  *   Node S sends a packet to Node D with a SID S as its source address.
  *   Node Q is an intermediate node on the path from Node S to Node D. For=
 some reason, Node Q cannot forward the packet.
  *   Node Q sends an ICMP message to Node S. The ICMP destination address =
is SID S.
  *   The ICMP message arrives at Node A
  *   Node A discards the ICMP message, because the payload is ICMP

It might be OK to make an exception for ICMP messages. This is because RFC =
4443 forbids sending an ICMP message in response to another ICMP message. H=
owever, I am not entirely sure that this is a good idea. One day in the fut=
ure, some protocol other than ICMP may try send a response to the source ad=
dress of the ICMP message.

                                                                           =
          Ron




Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com>
Sent: Tuesday, January 7, 2020 4:18 AM
To: Ron Bonica <rbonica@juniper.net>
Cc: SPRING WG <spring@ietf.org>
Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Ron,

It's good to see agreement on the fact that SRH follows RFC4443 Section 2.2=
 with respect to how the ICMP Source Address is selected.

Can you please point me to the text in draft-ietf-spring-srv6-network-progr=
amming that changes the behavior below from RFC4443 Section 2.2? I believe =
there is no such text.

Thanks,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Saturday, 21 December 2019 at 20:59
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Cc: "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sprin=
g@ietf.org>>
Subject: RE: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Pablo,

Section 2.2 of RFC 4443 offers the following options:

"   (a) If the message is a response to a message sent to one of the
       node's unicast addresses, the Source Address of the reply MUST be
       that same address.

   (b) If the message is a response to a message sent to any other
       address, such as

       - a multicast group address,
       - an anycast address implemented by the node, or
       - a unicast address that does not belong to the node

      the Source Address of the ICMPv6 packet MUST be a unicast address
      belonging to the node. "

So, the question boils down to whether you consider a SID to be one of the =
node's unicast addresses. If so, the answer is a). If not, the answer is b)=
.

So, which is it?

                                                    Happy Holidays,
                                                         Ron





Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Friday, December 20, 2019 12:30 PM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Ron,

I guess that draft-ietf-6man-segment-routing-header does not contain any ex=
plicit text about it because it is not needed.
Instead draft-ietf-6man-segment-routing-header contains a reference to RFC4=
443 that details in section 2.2 how to select it.

There is no text in draft-ietf-spring-srv6-network-programming that changes=
 such behavior.

Happy Holidays,
Pablo.

From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> on b=
ehalf of Ron Bonica <rbonica=3D40juniper.net@dmarc.ietf.org<mailto:rbonica=
=3D40juniper.net@dmarc.ietf.org>>
Date: Thursday, 19 December 2019 at 14:59
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>, "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sp=
ring@ietf.org>>
Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Pablo,

Can you provide a specific reference into draft-ietf-6man-segment-routing-h=
eader? I can't find the answer to my question in there.

                                                                           =
              Ron





Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Thursday, December 19, 2019 6:47 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>; spring@ie=
tf.org<mailto:spring@ietf.org>
Subject: Re: SRv6 Network Programming - ICMP Source Address Selection

Ron,

This is exactly the same as in the SRH.
There is no text in draft-ietf-spring-srv6-network-programming that changes=
 this.

Cheers,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Monday, 9 December 2019 at 23:48
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>, SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>, 6man <6man@ietf=
.org<mailto:6man@ietf.org>>
Subject: RE: SRv6 Network Programming - ICMP Source Address Selection

Pablo,

Section 2.2 of RFC 4443 offers two options. If you think that a SID is a un=
icast address, the first option is applicable. If you think that a SID is n=
ot a unicast address, the second option is applicable.

Which did you choose?

                                                                         Ro=
n



Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Monday, December 9, 2019 10:18 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>; SPRING WG=
 <spring@ietf.org<mailto:spring@ietf.org>>; 6man <6man@ietf.org<mailto:6man=
@ietf.org>>
Subject: Re: SRv6 Network Programming - ICMP Source Address Selection

Ron,

As you pointed out in your email, RFC4443 Section 2.2 is very clear about h=
ow to select the source address.
draft-ietf-spring-srv6-network-programming does not change this.

Thanks,
Pablo.

From: ipv6 <ipv6-bounces@ietf.org<mailto:ipv6-bounces@ietf.org>> on behalf =
of Ron Bonica <rbonica=3D40juniper.net@dmarc.ietf.org<mailto:rbonica=3D40ju=
niper.net@dmarc.ietf.org>>
Date: Friday, 6 December 2019 at 17:40
To: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>, 6man <6man@ietf.or=
g<mailto:6man@ietf.org>>
Subject: SRv6 Network Programming - ICMP Source Address Selection

Authors,

When an SRv6 node sends an ICMP message, how does it select the ICMP messag=
e's source address?

Section 2.2 of RFC 4443 offers two options. If you think that a SID is a un=
icast address, the first option is applicable. If you think that a SID is n=
ot a unicast address, the second option is applicable.

                                                                     Ron


Juniper Business Use Only

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</head>
<body lang=3D"EN-US" link=3D"#0563C1" vlink=3D"#954F72">
<div class=3D"WordSection1">
<p class=3D"MsoNormal">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Let me try to ask the question another way:<o:p></o:=
p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<ol style=3D"margin-top:0in" start=3D"1" type=3D"1">
<li class=3D"MsoListParagraph" style=3D"margin-left:0in;mso-list:l0 level1 =
lfo3">Is it generally acceptable for a SID to appear in the source address =
field of an IPv6 header?<o:p></o:p></li><li class=3D"MsoListParagraph" styl=
e=3D"margin-left:0in;mso-list:l0 level1 lfo3">Can an exception be made for =
ICMP messages?<o:p></o:p></li></ol>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">I think that the answer to the first question is &#8=
220;no&#8221;, because doing so would break ICMP. Think about what would ha=
ppen if:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<ul style=3D"margin-top:0in" type=3D"disc">
<li class=3D"MsoListParagraph" style=3D"margin-left:0in;mso-list:l1 level1 =
lfo6">Node S sends a packet to Node D with a SID S as its source address.<o=
:p></o:p></li><li class=3D"MsoListParagraph" style=3D"margin-left:0in;mso-l=
ist:l1 level1 lfo6">Node Q is an intermediate node on the path from Node S =
to Node D. For some reason, Node Q cannot forward the packet.<o:p></o:p></l=
i><li class=3D"MsoListParagraph" style=3D"margin-left:0in;mso-list:l1 level=
1 lfo6">Node Q sends an ICMP message to Node S. The ICMP destination addres=
s is SID S.<o:p></o:p></li><li class=3D"MsoListParagraph" style=3D"margin-l=
eft:0in;mso-list:l1 level1 lfo6">The ICMP message arrives at Node A<o:p></o=
:p></li><li class=3D"MsoListParagraph" style=3D"margin-left:0in;mso-list:l1=
 level1 lfo6">Node A discards the ICMP message, because the payload is ICMP=
<o:p></o:p></li></ul>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">It might be OK to make an exception for ICMP message=
s. This is because RFC 4443 forbids sending an ICMP message in response to =
another ICMP message. However, I am not entirely sure that this is a good i=
dea. One day in the future, some protocol
 other than ICMP may try send a response to the source address of the ICMP =
message.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p; Ron<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0in;margin=
-bottom:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b>From:</b> Pablo Camarillo (pcamaril) &lt;pcamaril=
@cisco.com&gt;
<br>
<b>Sent:</b> Tuesday, January 7, 2020 4:18 AM<br>
<b>To:</b> Ron Bonica &lt;rbonica@juniper.net&gt;<br>
<b>Cc:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Subject:</b> Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Ron, <o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">It&#8217;s good to see agreemen=
t on the fact that SRH follows RFC4443 Section 2.2 with respect to how the =
ICMP Source Address is selected.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Can you please point me to the =
text in draft-ietf-spring-srv6-network-programming that changes the behavio=
r below from RFC4443 Section 2.2? I believe there is no such text.<o:p></o:=
p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Thanks,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Pablo.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><span style=3D"font-si=
ze:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">Ron Bonica &lt;<a h=
ref=3D"mailto:rbonica@juniper.net">rbonica@juniper.net</a>&gt;<br>
<b>Date: </b>Saturday, 21 December 2019 at 20:59<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;<a href=3D"mailto:pca=
maril@cisco.com">pcamaril@cisco.com</a>&gt;<br>
<b>Cc: </b>&quot;<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&quo=
t; &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&gt;<br>
<b>Subject: </b>RE: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><o:p>&nbsp;</o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Section 2.2 of RFC 4443 o=
ffers the following options:<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&#8220;&nbsp;&nbsp; (a) I=
f the message is a response to a message sent to one of the<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp; node's unicast addresses, the Source Address of the reply MUST =
be<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp; that same address.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;&nbsp; (b) If the m=
essage is a response to a message sent to any other<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp; address, such as<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp; - a multicast group address,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp; - an anycast address implemented by the node, or<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp; - a unicast address that does not belong to the node<o:p></o:p>=
</p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp; the Source Address of the ICMPv6 packet MUST be a unicast address<o:p=
></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp; belonging to the node. &#8220;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">So, the question boils do=
wn to whether you consider a SID to be one of the node&#8217;s unicast addr=
esses. If so, the answer is a). If not, the answer is b).<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">So, which is it?<o:p></o:=
p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Happy Holidays,<o:=
p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.00=
01pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b>From:</b> Pablo Camari=
llo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco.com">pcamaril@cisco.com=
</a>&gt;
<br>
<b>Sent:</b> Friday, December 20, 2019 12:30 PM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;<br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><br>
<b>Subject:</b> Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">Ron,=
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">&nbs=
p;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">I gu=
ess that draft-ietf-6man-segment-routing-header does not contain any explic=
it text about it because it is not needed.
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">Inst=
ead draft-ietf-6man-segment-routing-header contains a reference to RFC4443 =
that details in section 2.2 how to select it.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">There is no text in draft=
-ietf-spring-srv6-network-programming that changes such behavior.<o:p></o:p=
></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Happy Holidays,<o:p></o:p=
></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Pablo.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">&nbs=
p;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b><span style=3D"font-s=
ize:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">spring &lt;</span><=
span lang=3D"ES"><a href=3D"mailto:spring-bounces@ietf.org"><span lang=3D"E=
N-US" style=3D"font-size:12.0pt">spring-bounces@ietf.org</span></a></span><=
span style=3D"font-size:12.0pt;color:black">&gt; on
 behalf of Ron Bonica &lt;</span><span lang=3D"ES"><a href=3D"mailto:rbonic=
a=3D40juniper.net@dmarc.ietf.org"><span lang=3D"EN-US" style=3D"font-size:1=
2.0pt">rbonica=3D40juniper.net@dmarc.ietf.org</span></a></span><span style=
=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Thursday, 19 December 2019 at 14:59<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><span lang=3D"=
ES"><a href=3D"mailto:pcamaril@cisco.com"><span lang=3D"EN-US" style=3D"fon=
t-size:12.0pt">pcamaril@cisco.com</span></a></span><span style=3D"font-size=
:12.0pt;color:black">&gt;, &quot;</span><span lang=3D"ES"><a href=3D"mailto=
:spring@ietf.org"><span lang=3D"EN-US" style=3D"font-size:12.0pt">spring@ie=
tf.org</span></a></span><span style=3D"font-size:12.0pt;color:black">&quot;
 &lt;</span><span lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><span lang=
=3D"EN-US" style=3D"font-size:12.0pt">spring@ietf.org</span></a></span><spa=
n style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Subject: </b>Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Can you provide a specif=
ic reference into draft-ietf-6man-segment-routing-header? I can&#8217;t fin=
d the answer to my question in there.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:0in;margin-right:0in;margin-bottom:0in;margin-left:1.0in;margin-bottom:.0=
001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b>From:</b> Pablo Camar=
illo (pcamaril) &lt;<span lang=3D"ES"><a href=3D"mailto:pcamaril@cisco.com"=
><span lang=3D"EN-US">pcamaril@cisco.com</span></a></span>&gt;
<br>
<b>Sent:</b> Thursday, December 19, 2019 6:47 AM<br>
<b>To:</b> Ron Bonica &lt;<span lang=3D"ES"><a href=3D"mailto:rbonica@junip=
er.net"><span lang=3D"EN-US">rbonica@juniper.net</span></a></span>&gt;;
<span lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><span lang=3D"EN-US">s=
pring@ietf.org</span></a></span><br>
<b>Subject:</b> Re: SRv6 Network Programming - ICMP Source Address Selectio=
n<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">Ron=
,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">Thi=
s is exactly the same as in the SRH.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">The=
re is no text in draft-ietf-spring-srv6-network-programming that changes th=
is.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">Che=
ers,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">Pab=
lo.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><b><span style=3D"font-s=
ize:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">Ron Bonica &lt;</sp=
an><span lang=3D"ES"><a href=3D"mailto:rbonica@juniper.net"><span lang=3D"E=
N-US" style=3D"font-size:12.0pt">rbonica@juniper.net</span></a></span><span=
 style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Monday, 9 December 2019 at 23:48<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><span lang=3D"=
ES"><a href=3D"mailto:pcamaril@cisco.com"><span lang=3D"EN-US" style=3D"fon=
t-size:12.0pt">pcamaril@cisco.com</span></a></span><span style=3D"font-size=
:12.0pt;color:black">&gt;, SPRING WG &lt;</span><span lang=3D"ES"><a href=
=3D"mailto:spring@ietf.org"><span lang=3D"EN-US" style=3D"font-size:12.0pt"=
>spring@ietf.org</span></a></span><span style=3D"font-size:12.0pt;color:bla=
ck">&gt;,
 6man &lt;</span><span lang=3D"ES"><a href=3D"mailto:6man@ietf.org"><span l=
ang=3D"EN-US" style=3D"font-size:12.0pt">6man@ietf.org</span></a></span><sp=
an style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Subject: </b>RE: SRv6 Network Programming - ICMP Source Address Selectio=
n</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">Section 2.2 of RFC 4443 =
offers two options. If you think that a SID is a unicast address, the first=
 option is applicable. If you think that a SID is not a unicast address, th=
e second option is applicable.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">Which did you choose?<o:=
p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:0in;margin-right:0in;margin-bottom:0in;margin-left:1.5in;margin-bottom:.0=
001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><b>From:</b> Pablo Camar=
illo (pcamaril) &lt;<span lang=3D"ES"><a href=3D"mailto:pcamaril@cisco.com"=
><span lang=3D"EN-US">pcamaril@cisco.com</span></a></span>&gt;
<br>
<b>Sent:</b> Monday, December 9, 2019 10:18 AM<br>
<b>To:</b> Ron Bonica &lt;<span lang=3D"ES"><a href=3D"mailto:rbonica@junip=
er.net"><span lang=3D"EN-US">rbonica@juniper.net</span></a></span>&gt;; SPR=
ING WG &lt;<span lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><span lang=
=3D"EN-US">spring@ietf.org</span></a></span>&gt;; 6man &lt;<span lang=3D"ES=
"><a href=3D"mailto:6man@ietf.org"><span lang=3D"EN-US">6man@ietf.org</span=
></a></span>&gt;<br>
<b>Subject:</b> Re: SRv6 Network Programming - ICMP Source Address Selectio=
n<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">Ron=
,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">As =
you pointed out in your email, RFC4443 Section 2.2 is very clear about how =
to select the source address.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">dra=
ft-ietf-spring-srv6-network-programming does not change this.
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">Tha=
nks,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">Pab=
lo.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"font-s=
ize:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">ipv6 &lt;</span><sp=
an lang=3D"ES"><a href=3D"mailto:ipv6-bounces@ietf.org"><span lang=3D"EN-US=
" style=3D"font-size:12.0pt">ipv6-bounces@ietf.org</span></a></span><span s=
tyle=3D"font-size:12.0pt;color:black">&gt; on behalf
 of Ron Bonica &lt;</span><span lang=3D"ES"><a href=3D"mailto:rbonica=3D40j=
uniper.net@dmarc.ietf.org"><span lang=3D"EN-US" style=3D"font-size:12.0pt">=
rbonica=3D40juniper.net@dmarc.ietf.org</span></a></span><span style=3D"font=
-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Friday, 6 December 2019 at 17:40<br>
<b>To: </b>SPRING WG &lt;</span><span lang=3D"ES"><a href=3D"mailto:spring@=
ietf.org"><span lang=3D"EN-US" style=3D"font-size:12.0pt">spring@ietf.org</=
span></a></span><span style=3D"font-size:12.0pt;color:black">&gt;, 6man &lt=
;</span><span lang=3D"ES"><a href=3D"mailto:6man@ietf.org"><span lang=3D"EN=
-US" style=3D"font-size:12.0pt">6man@ietf.org</span></a></span><span style=
=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Subject: </b>SRv6 Network Programming - ICMP Source Address Selection</s=
pan><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Authors,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">When an SRv6 node sends =
an ICMP message, how does it select the ICMP message&#8217;s source address=
?<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Section 2.2 of RFC 4443 =
offers two options. If you think that a SID is a unicast address, the first=
 option is applicable. If you think that a SID is not a unicast address, th=
e second option is applicable.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;
<span lang=3D"ES">Ron<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"ES">&nbsp;=
<o:p></o:p></span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:0in;margin-right:0in;margin-bottom:0in;margin-left:2.0in;margin-bottom:.0=
001pt;text-align:center">
<span lang=3D"ES" style=3D"font-size:7.0pt;color:black">Juniper Business Us=
e Only</span><span lang=3D"ES"><o:p></o:p></span></p>
</div>
</body>
</html>

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From: Ron Bonica <rbonica@juniper.net>
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
CC: SPRING WG <spring@ietf.org>
Thread-Topic: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6
Thread-Index: AQHVxTtBCnUJ5T9wFUOlTR4tmYQzLKffgKog
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Date: Tue, 7 Jan 2020 18:16:49 +0000
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References: <048C0650-83A6-4584-90B3-46DCC37B4E57@cisco.com>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/Ca_dXU6n57okMzSPYWWbdqtAclU>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6
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Pablo,

RFC 8354 reinforces my analysis in https://mailarchive.ietf.org/arch/msg/sp=
ring/3WGuQumIfcmH281nwq3s9Un6raI. Are you saying that you agree with this a=
nalysis?

                                             Ron






Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com>
Sent: Tuesday, January 7, 2020 4:17 AM
To: Ron Bonica <rbonica@juniper.net>
Cc: SPRING WG <spring@ietf.org>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,

SPRING has already done this work and documented the SRv6 use-cases in RFC8=
354 before progressing with the SRv6 standardization.

Further on, draft-ietf-spring-srv6-network-programming is a Standards Track=
 document.
I fail to see how a cite from RFC8354 or any other text on "SRv6 vs SR-MPLS=
" standardises anything at all.
Note that we have already removed text from draft-ietf-spring-srv6-network-=
programming (e.g. illustrations) because it was not standardising anything.

Thank you for the suggestion,
Pablo.

From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> on b=
ehalf of Ron Bonica <rbonica=3D40juniper.net@dmarc.ietf.org<mailto:rbonica=
=3D40juniper.net@dmarc.ietf.org>>
Date: Monday, 30 December 2019 at 11:08
To: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: [spring] draft-ietf-spring-srv6-network-programming: Relative adva=
ntages of SRv6

Pablo,

Would you consider adding a short section to the draft explaining the relat=
ive advantages of SRv6 over SR-MPLS? This section would explain why an netw=
ork operator would deploy SRv6 instead of SR-MPLS.

                                                                           =
              Ron



Juniper Business Use Only

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<p class=3D"MsoNormal">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">RFC 8354 reinforces my analysis in <a href=3D"https:=
//mailarchive.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6raI">
https://mailarchive.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6raI</a=
>. Are you saying that you agree with this analysis?<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:=
p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0in;margin=
-bottom:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b>From:</b> Pablo Camarillo (pcamaril) &lt;pcamaril=
@cisco.com&gt;
<br>
<b>Sent:</b> Tuesday, January 7, 2020 4:17 AM<br>
<b>To:</b> Ron Bonica &lt;rbonica@juniper.net&gt;<br>
<b>Cc:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Ron,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">SPRING has already done this wo=
rk and documented the SRv6 use-cases in RFC8354 before progressing with the=
 SRv6 standardization.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Further on, draft-ietf-spring-s=
rv6-network-programming is a Standards Track document.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">I fail to see how a cite from R=
FC8354 or any other text on &#8220;SRv6 vs SR-MPLS&#8221; standardises anyt=
hing at all.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Note that we have already remov=
ed text from draft-ietf-spring-srv6-network-programming (e.g. illustrations=
) because it was not standardising anything.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Thank you for the suggestion,<o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Pablo.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><span style=3D"font-si=
ze:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">spring &lt;<a href=
=3D"mailto:spring-bounces@ietf.org">spring-bounces@ietf.org</a>&gt; on beha=
lf of Ron Bonica &lt;<a href=3D"mailto:rbonica=3D40juniper.net@dmarc.ietf.o=
rg">rbonica=3D40juniper.net@dmarc.ietf.org</a>&gt;<br>
<b>Date: </b>Monday, 30 December 2019 at 11:08<br>
<b>To: </b>SPRING WG &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org=
</a>&gt;<br>
<b>Subject: </b>[spring] draft-ietf-spring-srv6-network-programming: Relati=
ve advantages of SRv6<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><o:p>&nbsp;</o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Would you consider adding=
 a short section to the draft explaining the relative advantages of SRv6 ov=
er SR-MPLS? This section would explain why an network operator would deploy=
 SRv6 instead of SR-MPLS.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;&nbsp; &nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span lang=3D"ES">Ron=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"ES">&nbsp;<=
o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"ES"><o:p>&n=
bsp;</o:p></span></p>
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01pt;text-align:center">
<span lang=3D"ES" style=3D"font-size:7.0pt;color:black">Juniper Business Us=
e Only</span><span lang=3D"ES"><o:p></o:p></span></p>
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Subject: Re: [spring] IPR poll for draft-ietf-spring-srv6-network-programming
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Hello!

As a contributor, I am not aware of any undisclosed IPR on this document.

Thanks,
Prem.

On Thu, Dec 5, 2019 at 8:50 AM <bruno.decraene@orange.com> wrote:

> Hi SPRING WG,
>
> In parallel to the WGLC for draft-ietf-spring-srv6-network-programming, we
> would like to poll for IPR.
>
> If you are aware of IPR that applies to
> draft-ietf-spring-srv6-network-programming [1] please respond to this
> email. If you are aware of IPR, please indicate whether it has been
> disclosed in accordance with IETF IPR rules (RFCs 3979, 4879, 3669 and
> 5378 provide more details).
>
> If you are an *author or contributor* please respond to this email
> regardless of whether or not you're aware of any IPR.
>
> This document will not advance until IPR confirmations have been received
> from all authors and contributors.
>
> Thank you,
> Bruno
>
> [1]
> https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-05
>
>
>
> _________________________________________________________________________________________________________________________
>
> Ce message et ses pieces jointes peuvent contenir des informations
> confidentielles ou privilegiees et ne doivent donc
> pas etre diffuses, exploites ou copies sans autorisation. Si vous avez
> recu ce message par erreur, veuillez le signaler
> a l'expediteur et le detruire ainsi que les pieces jointes. Les messages
> electroniques etant susceptibles d'alteration,
> Orange decline toute responsabilite si ce message a ete altere, deforme ou
> falsifie. Merci.
>
> This message and its attachments may contain confidential or privileged
> information that may be protected by law;
> they should not be distributed, used or copied without authorisation.
> If you have received this email in error, please notify the sender and
> delete this message and its attachments.
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<div dir=3D"ltr"><div>Hello!</div><div><br></div>As a contributor, I am not=
 aware of any undisclosed=C2=A0IPR=C2=A0on this document.<br><br>Thanks,<br=
>Prem.<br></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gm=
ail_attr">On Thu, Dec 5, 2019 at 8:50 AM &lt;<a href=3D"mailto:bruno.decrae=
ne@orange.com">bruno.decraene@orange.com</a>&gt; wrote:<br></div><blockquot=
e class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px s=
olid rgb(204,204,204);padding-left:1ex">Hi SPRING WG,<br>
<br>
In parallel to the WGLC for draft-ietf-spring-srv6-network-programming, we =
would like to poll for IPR.<br>
<br>
If you are aware of IPR that applies to draft-ietf-spring-srv6-network-prog=
ramming [1] please respond to this email. If you are aware of IPR, please i=
ndicate whether it has been<br>
disclosed in accordance with IETF IPR rules (RFCs 3979, 4879, 3669 and 5378=
 provide more details).<br>
<br>
If you are an *author or contributor* please respond to this email regardle=
ss of whether or not you&#39;re aware of any IPR. <br>
<br>
This document will not advance until IPR confirmations have been received f=
rom all authors and contributors.<br>
<br>
Thank you,<br>
Bruno<br>
<br>
[1] <a href=3D"https://tools.ietf.org/html/draft-ietf-spring-srv6-network-p=
rogramming-05" rel=3D"noreferrer" target=3D"_blank">https://tools.ietf.org/=
html/draft-ietf-spring-srv6-network-programming-05</a><br>
<br>
<br>
___________________________________________________________________________=
______________________________________________<br>
<br>
Ce message et ses pieces jointes peuvent contenir des informations confiden=
tielles ou privilegiees et ne doivent donc<br>
pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler<br>
a l&#39;expediteur et le detruire ainsi que les pieces jointes. Les message=
s electroniques etant susceptibles d&#39;alteration,<br>
Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.<br>
<br>
This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;<br>
they should not be distributed, used or copied without authorisation.<br>
If you have received this email in error, please notify the sender and dele=
te this message and its attachments.<br>
As emails may be altered, Orange is not liable for messages that have been =
modified, changed or falsified.<br>
Thank you.<br>
<br>
_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer"=
 target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><br>
</blockquote></div>

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From: Greg Mirsky <gregimirsky@gmail.com>
Date: Tue, 7 Jan 2020 12:00:54 -0800
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To: Bruno Decraene <bruno.decraene@orange.com>
Cc: SPRING WG List <spring@ietf.org>, "6man@ietf.org" <6man@ietf.org>,  draft-ietf-spring-srv6-network-programming <draft-ietf-spring-srv6-network-programming@ietf.org>
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Subject: Re: [spring] WGLC - draft-ietf-spring-srv6-network-programming
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Dear Authors, WG Chairs, et al.,
I hope I'm not too late with my comments and questions on the document.
Please kindly consider them as WG LC comments:

   - I have a question regarding the following pseudo-code:

  S08.   max_LE = (Hdr Ext Len / 2) - 1
  S09.   If ((Last Entry > max_LE) or (Segments Left > (Last Entry+1)) {
  S10.      Send an ICMP Parameter Problem to the Source Address,
               Code 0 (Erroneous header field encountered),
               Pointer set to the Segments Left field.
               Interrupt packet processing and discard the packet.
  S11.   }

According to RFC 8200, Hdr Ext Len is the length of the extension header in
8-octet units, not including the first 8 octets. Thus, as I understand,
max_LE is the length in 8-octet units of half of the extension header less
one. On the other hand, Last Entry and Segments Left are indices. Hence my
question, What is being compared in line S09 ( Last Entry > max_LE)? Length
and index? If the goal is to use Hdr Ext Len to calculate the number of
entries in the header, then what assumption is used in S08? Is it that the
entry's length is always and only 128 bits, i.e. 16 octets? I believe that
using such an assumption is too narrowing and limiting to SRH.


   - Another question is to Section 6.3. What value do you see in this
   section? I've noticed that draft-ietf-6man-spring-srv6-oam is in the
   Informational References section. I agree with that for the first sentence
   in the section. But I believe that the second sentence that refers to the
   new O-bit and OAM behaviors defined in  draft-ietf-6man-spring-srv6-oam
   requires it to be moved into the Normative References section. Unless
   you'll decide to remove the section altogether.


Regards,
Greg

On Thu, Dec 5, 2019 at 9:15 AM <bruno.decraene@orange.com> wrote:

> Hello SPRING,
>
>
>
> This email starts a two weeks Working Group Last Call on draft-ietf-spring-srv6-network-programming [1].
>
>
>
> Please read this document if you haven't read the most recent version, and send your comments to the SPRING WG list, no later than December 20.
>
>
>
> You may copy the 6MAN WG for IPv6 related comment, but consider not duplicating emails on the 6MAN mailing list for the comments which are only spring specifics.
>
>
>
> If you are raising a point which you expect will be specifically debated on the mailing list, consider using a specific email/thread for this point.
>
> This may help avoiding that the thread become specific to this point and that other points get forgotten (or that the thread get converted into parallel independent discussions)
>
>
>
> Thank you,
>
> Bruno
>
>
>
> [1] https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-05
>
>
>
>
>
> _________________________________________________________________________________________________________________________
>
> Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc
> pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler
> a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration,
> Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci.
>
> This message and its attachments may contain confidential or privileged information that may be protected by law;
> they should not be distributed, used or copied without authorisation.
> If you have received this email in error, please notify the sender and delete this message and its attachments.
> As emails may be altered, Orange is not liable for messages that have been modified, changed or falsified.
> Thank you.
>
> --------------------------------------------------------------------
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> ipv6@ietf.org
> Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
> --------------------------------------------------------------------
>

--000000000000e0dea3059b923c9c
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<div dir=3D"ltr">Dear Authors, WG Chairs, et al.,<div>I hope I&#39;m not to=
o late with my comments and questions on the document. Please kindly consid=
er them as WG LC comments:</div><div><ul><li>I have a question regarding th=
e following pseudo-code:</li></ul></div><blockquote style=3D"margin:0 0 0 4=
0px;border:none;padding:0px"><div>=C2=A0 S08. =C2=A0 max_LE =3D (Hdr Ext Le=
n / 2) - 1</div><div>=C2=A0 S09. =C2=A0 If ((Last Entry &gt; max_LE) or (Se=
gments Left &gt; (Last Entry+1)) {</div><div>=C2=A0 S10. =C2=A0 =C2=A0 =C2=
=A0Send an ICMP Parameter Problem to the Source Address,</div><div>=C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Code 0 (Erroneous header fi=
eld encountered),</div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0Pointer set to the Segments Left field.</div><div>=C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Interrupt packet processing and di=
scard the packet.</div><div>=C2=A0 S11. =C2=A0 }</div><div><br></div><div>A=
ccording to RFC 8200, Hdr Ext Len is the length of the extension header in =
8-octet units, not including the first 8 octets. Thus, as I understand, max=
_LE is the length in 8-octet units of half of the extension header less one=
. On the other hand, Last Entry and Segments Left are indices. Hence my que=
stion, What is being compared in line S09 (

Last Entry &gt; max_LE)? Length and index? If the goal is to use Hdr Ext Le=
n to calculate the number of entries in the header, then what assumption is=
 used in S08? Is it that the entry&#39;s length is always and only 128 bits=
, i.e. 16 octets? I believe that using such an assumption is too narrowing =
and limiting to SRH.</div></blockquote><ul><li>Another question is to Secti=
on 6.3. What value do you see in this section? I&#39;ve noticed that draft-=
ietf-6man-spring-srv6-oam is in the Informational References section. I agr=
ee with that for the first sentence in the section. But I believe that the =
second sentence that refers to the new O-bit and OAM behaviors defined in=
=C2=A0

draft-ietf-6man-spring-srv6-oam requires it to be moved into the Normative =
References section. Unless you&#39;ll decide to remove the section altogeth=
er.</li></ul><div><br></div><div>Regards,</div><div>Greg</div></div><br><di=
v class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, Dec 5=
, 2019 at 9:15 AM &lt;<a href=3D"mailto:bruno.decraene@orange.com">bruno.de=
craene@orange.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote"=
 style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);p=
adding-left:1ex">







<div lang=3D"FR">
<div>
<pre><span lang=3D"EN-US">Hello SPRING,<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">This email starts a two weeks Working Group Last =
Call on draft-ietf-spring-srv6-network-programming [1].<u></u><u></u></span=
></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">Please read this document if you haven&#39;t read=
 the most recent version, and send your comments to the SPRING WG list, no =
later than December 20.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">You may copy the 6MAN WG for IPv6 related comment=
, but consider not duplicating emails on the 6MAN mailing list for the comm=
ents which are only spring specifics.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">If you are raising a point which you expect will =
be specifically debated on the mailing list, consider using a specific emai=
l/thread for this point.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US">This may help avoiding that the thread become spe=
cific to this point and that other points get forgotten (or that the thread=
 get converted into parallel independent discussions)<u></u><u></u></span><=
/pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">Thank you,<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US">Bruno<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">[1] <a href=3D"https://tools.ietf.org/html/draft-=
ietf-spring-srv6-network-programming-05" target=3D"_blank">https://tools.ie=
tf.org/html/draft-ietf-spring-srv6-network-programming-05</a><u></u><u></u>=
</span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
</div>
<pre>______________________________________________________________________=
___________________________________________________

Ce message et ses pieces jointes peuvent contenir des informations confiden=
tielles ou privilegiees et ne doivent donc
pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler
a l&#39;expediteur et le detruire ainsi que les pieces jointes. Les message=
s electroniques etant susceptibles d&#39;alteration,
Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.

This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;
they should not be distributed, used or copied without authorisation.
If you have received this email in error, please notify the sender and dele=
te this message and its attachments.
As emails may be altered, Orange is not liable for messages that have been =
modified, changed or falsified.
Thank you.
</pre></div>

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<a href=3D"mailto:ipv6@ietf.org" target=3D"_blank">ipv6@ietf.org</a><br>
Administrative Requests: <a href=3D"https://www.ietf.org/mailman/listinfo/i=
pv6" rel=3D"noreferrer" target=3D"_blank">https://www.ietf.org/mailman/list=
info/ipv6</a><br>
--------------------------------------------------------------------<br>
</blockquote></div>

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From: <bruno.decraene@orange.com>
To: Jeff Tantsura <jefftant.ietf@gmail.com>
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Thread-Topic: draft-anand-spring-poi-sr
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Date: Wed, 8 Jan 2020 12:26:16 +0000
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From: Nat Kao <lekao@pyxisworks.org>
Date: Thu, 9 Jan 2020 10:33:32 +0800
Message-ID: <CAN3QBSeFC3m9AVAY79n4y2HC+-Aiak98a1Ag-OsvgqNSAXG9LA@mail.gmail.com>
To: Jeff Tantsura <jefftant.ietf@gmail.com>, "Ketan Talaulikar (ketant)" <ketant@cisco.com>
Cc: Robert Raszuk <robert@raszuk.net>, SPRING WG <spring@ietf.org>
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Subject: Re: [spring] Different MSDs for different traffic types on the same headend.
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Hi, Jeff & Ketan.

Should I provide more details about the use cases?
I'm not sure whether this is enough.

Thanks!

On Wed, Dec 18, 2019 at 2:20 PM Nat Kao <lekao@pyxisworks.org> wrote:

> Hi, Jeff & Ketan.
>
> For better discussion, let's assume these first:
>
> "TP-MSD" denotes the maximum transport label depth for traffic without
> service labels.
> "SRV-TP-MSD" denotes the maximum transport label depth for traffic with 1=
+
> service label(s).
>
> Here's one of the use cases:
>
> A customized best-effort TE process:
>
> 1. Decide which route R (incl. VPN routes) to diverge from its
> shortest-path.
>
> 2. Compute SID-list S for R that satisfies the (TE or whatever)
> constraints.
>
> 3a. If R is a plain IPv4/IPv6 route, we consult TP-MSD.
>     If length(S) <=3D headend's TP-MSD:
>         Inject an SR-TE policy candidate path P with color X by BGP.
>         Inject a new route R' with color X and larger localpref value.
>     else:
>         This path is not feasible, consider another route.
>
> 3b. If R is a service route, we consult SRV-TP-MSD.
>     If length(S) <=3D headend's SRV-TP-MSD:
>         Inject an SR-TE policy candidate path P with color X by BGP.
>         Inject a new route R' with color X and larger localpref value.
>     else:
>         This path is not feasible, consider another route.
>
> 4. Repeat 1 to 3 until the main objectives are met.(best-effort approach,
> some might fail)
>
> Notes:
>
> a) Clearly, BMI-MSD >=3D TP-MSD >=3D SRV-TP-MSD
> b) TP-MSD & SRV-TP-MSD can be signaled by the same methods as BMI-MSD.
> c) If a change on headend that modifies transport label depths(ex:
> recirculation), TP-MSD & SRV-TP-MSD shall reflect that change accordingly=
.
> d) If a change on headend that modifies transport label depths of certain
> LCs, TP-MSD & SRV-TP-MSD of those links shall reflect that change, too.
>
> Hope this helps.
>
> Regards,
> Nat
>
>
>
>
> On Wed, Dec 18, 2019 at 8:44 AM Jeff Tantsura <jefftant.ietf@gmail.com>
> wrote:
>
>> Hi Nat,
>>
>> Please bring your use case to the wg, MSD has specifically been designed
>> to address new types with a very little effort.
>>
>> Cheers,
>> Jeff
>> On Dec 17, 2019, 4:21 AM -0800, Ketan Talaulikar (ketant) <
>> ketant@cisco.com>, wrote:
>>
>> Hi Nat,
>>
>>
>>
>> The MSD framework enables us to define more/new MSD types. If there is a
>> real use-case and requirement (as you express) and the necessary MSD
>> type(s) can be formally defined then perhaps the WG can evaluate it.
>>
>>
>>
>> Thanks,
>>
>> Ketan
>>
>>
>>
>> *From:* spring <spring-bounces@ietf.org> *On Behalf Of* Nat Kao
>> *Sent:* 17 December 2019 17:16
>> *To:* Robert Raszuk <robert@raszuk.net>
>> *Cc:* SPRING WG <spring@ietf.org>; Nat Kao <lekao@pyxisworks.org>
>> *Subject:* Re: [spring] Different MSDs for different traffic types on
>> the same headend.
>>
>>
>>
>> Hello, Robert.
>>
>> Surely the current BMI-MSD definition is sufficient for platforms withou=
t
>> artificial boundaries.
>>
>> In this ideal case, maximum labels available for SR-TE policy can be
>> inferred from BMI-MSD and VPN routes.
>>
>>
>> However we have 3 different artificial boundaries across 3 different
>> platforms now.
>>
>> Hardcoding these boundaries might not scale well. (Especially different
>> OS versions may behave differently.)
>>
>> A standard mechanism to discover this boundary would greatly help
>> constructing SR-TE policy candidate paths.
>>
>>
>>
>> Regards,
>>
>> Nat.
>>
>>
>>
>>
>>
>> On Tue, Dec 17, 2019 at 5:58 PM Robert Raszuk <robert@raszuk.net> wrote:
>>
>> Hi Nat,
>>
>>
>>
>> I am having a bit of difficulty understanding reasoning and the way you
>> are separating transport from service labels.
>>
>>
>>
>> The processing label limit usually comes from data plane capabilities of
>> the platform namely LFIB or hardware below.
>>
>>
>>
>> Such layer is function agnostic and it does not matter what role the
>> label serves.
>>
>>
>>
>> Label lookup results in pointer to a adj. rewrite on the outbound side.
>> It really does not matter if the adjacent peer is your P router, segment
>> endpoint or CE.
>>
>>
>>
>> Of course there are number of processing exceptions - for example concep=
t
>> of aggregate VPN label, additional header modifications etc ...
>>
>>
>>
>> Likely some platforms put such artificial boundary between transport and
>> service hence your request. But if so IMHO this is more of an issue with
>> specific platform or its marketing message then IETF :).
>>
>>
>>
>> Many thx,
>> R.
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> On Tue, Dec 17, 2019 at 6:06 AM Nat Kao <lekao@pyxisworks.org> wrote:
>>
>> Hi, Jeff.
>>
>> Consider a headend that can perform 1 of the following 2 modes(but not
>> both):
>>
>> 1) Plain IPv4: 6 transport labels + 0 service label =3D> traffic can be
>> steered into a 6-label SR-TE policy.
>>
>> 2) Any type of VPN: 3 transport labels + 1~3 service labels =3D> traffic
>> cannot be steered into a 6-label SR-TE policy.
>>
>> a) As defined in RFC8491, the BMI-MSD is 6 for this headend. Do we have =
a
>> standardized way to signal the transport label depth in mode 2?
>>
>>    Maybe in a different MSD type?
>>
>> b) Since plain IPv4 and VPN routes can be steered into the same SR-TE
>> policy, do we have a standardized headend behavior in this situation?
>>
>>    (Should I open a new thread to discuss this? It seems not quite
>> MSD-relative.)
>>
>>
>>
>> Thanks...
>>
>> Nat
>>
>>
>>
>> On Tue, Dec 17, 2019 at 7:19 AM Jeff Tantsura <jefftant.ietf@gmail.com>
>> wrote:
>>
>> Gyan,
>>
>>
>>
>> MSD is only relevant for a device that either imposes the label stack
>> (head-end) or manipulates it (BSID anchor). There are some other constra=
ins
>> when it comes to entropy labels and ERLD, please read the respective dra=
fts.
>>
>> In general, SID stack would grow when TE is in use (any time you need to
>> use additional SID to deviate from SPT), another case is when additional
>> SID=E2=80=99s are used for services on the nodes, other than the tail-en=
d.
>>
>> That=E2=80=99s why we've designed MSD to be very flexible to accommodate=
 all the
>> different use cases, it is upto computational logic to decide how to dea=
l
>> with different constrains (MSD types)
>>
>>
>>
>> Cheers,
>>
>> Jeff
>>
>>
>>
>> P.S. you might want to see the NANOG MSD presentation I did some time ag=
o.
>>
>>
>> https://pc.nanog.org/static/published/meetings/NANOG71/1424/20171004_Tan=
tsura_The_Critical_Role_v1.pdf
>>
>> On Dec 14, 2019, 11:59 PM -0800, Gyan Mishra <hayabusagsm@gmail.com>,
>> wrote:
>>
>> Jeff
>>
>>
>>
>> With SR-MPLS with SR-TR let=E2=80=99s say if you use cSPF snd don=E2=80=
=99t have an ERO
>> strict explicit path defined or is a loose path, then the for the cSPF
>> would the transport labels be 1.  For loose would also be 1 also.  If th=
e
>> path were explicit defined to egress PE and was 7 hops from ingress to
>> egress then transport would be 6.  And if L3 vpn service sid was signale=
d
>> that would be 1 vpn label.
>>
>>
>>
>> Let me know if I have that right.
>>
>>
>>
>> In Nats scenario for IPv6 he has 3 vpnv6 labels.
>>
>>
>>
>> Why is that?
>>
>>
>>
>> With both SR-MPLS and SRv6 the L3 vpn AFI/SAFI MBGP services overlay
>> single label sits on top off SR as if does today with MPLS so why 3 vpn
>> labels.
>>
>>
>>
>> So with this draft with BGP-LS and BMI-MSD you can flood into the IGP th=
e
>> SID depth so all the nodes along the SR-TE path don=E2=80=99t go over th=
e maximum
>> which would result in an error.
>>
>>
>>
>> If you set your MTU high enough in the core like 9216, does that overcom=
e
>> the SID depth issues with SR-TE?
>>
>>
>>
>> Warm regards,
>>
>>
>>
>> Gyan
>>
>>
>>
>> On Sat, Dec 14, 2019 at 2:43 AM Nat Kao <lekao@pyxisworks.org> wrote:
>>
>> Hi, Jeff.
>>
>>
>>
>> Thanks for the BMI-MSD reference. If I understand correctly:
>>
>>
>>
>> BMI-MSD =3D Transport Label Depth + Service Label Depth
>>
>> Only former can be utilized by SR-TE policies.
>>
>>
>>
>> Currently do we have any method to determine the composition of BMI?
>>
>> We need to know the transport label depth when doing service route
>> per-destination steering.
>>
>>
>>
>> This problem arises when trying to steer a plain IPv4 route and a VPN
>> service route into the same SR-TE policy that exceeds the transport labe=
l
>> depth of the service route. I'm trying to figure out the standard behavi=
or
>> in this case since the headend we use currently produces some interestin=
g
>> results.
>>
>>
>>
>> Regards,
>>
>> Nat.
>>
>>
>>
>> On Sat, Dec 14, 2019 at 2:42 AM Jeff Tantsura <jefftant.ietf@gmail.com
>> <jefftant..ietf@gmail.com>> wrote:
>>
>> Hi Nat,
>>
>>
>>
>> Please read https://tools.ietf.org/html/rfc8491#section-5
>>
>> Currently defined MSD types are:
>>
>> 1: BMI
>>
>> 2: ERLD
>>
>>
>>
>> Specifically to BMI:
>>
>> Base MPLS Imposition MSD (BMI-MSD) signals the total number of
>> MPLS labels that can be imposed, including all
>> service/transport/special labels.
>>
>> The answer to your question is 6
>>
>>
>>
>> Cheers,
>>
>> Jeff
>>
>> On Dec 13, 2019, 3:42 AM -0800, Nat Kao <lekao@pyxisworks.org>, wrote:
>>
>> Hello, SPRING WG.
>>
>> How do we deal with an SR-TE policy headend with different MSDs for
>> different types of traffic?
>>
>> For example, a headend H can impose:
>> 6 transport labels for plain IPv4 packets;
>> 5 transport labels + 1 IPv6 ExpNull label for plain IPv6 packets;
>>
>> 3 transport labels + 3 VPN  labels for VPN packets.
>>
>>
>>
>> a) For a plain IPv4 route R4 and a VPN route Rv both steered into the
>> SR-TE policy P1 with SID list <S1, S2, S3, S4, S5>, what will H perform =
in
>> this situation?
>> b) What is the MSD of H? 6, 5 or 3?
>>
>>
>>
>> Thanks,
>>
>> Nat.
>>
>> _______________________________________________
>> spring mailing list
>> spring@ietf.org
>> https://www.ietf.org/mailman/listinfo/spring
>>
>> _______________________________________________
>> spring mailing list
>> spring@ietf.org
>> https://www.ietf.org/mailman/listinfo/spring
>>
>> --
>>
>> Gyan S. Mishra
>>
>> IT Network Engineering & Technology
>>
>> Verizon Communications Inc. (VZ)
>>
>> 13101 Columbia Pike FDC1 3rd Floor
>>
>> Silver Spring, MD 20904
>>
>> United States
>>
>> Phone: 301 502-1347
>>
>> Email: gyan.s.mishra@verizon.com
>>
>> www.linkedin.com/in/networking-technologies-consultant
>>
>>
>>
>> _______________________________________________
>> spring mailing list
>> spring@ietf.org
>> https://www.ietf.org/mailman/listinfo/spring
>>
>> _______________________________________________
>> spring mailing list
>> spring@ietf.org
>> https://www.ietf.org/mailman/listinfo/spring
>>
>>

--00000000000087559f059babd66a
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div><div>Hi, Jeff &amp; Ketan.<br></div><div><br></div>Sh=
ould I provide more details about the use cases?<br></div><div>I&#39;m not =
sure whether this is enough.<br></div><div><br></div>Thanks!<br></div><br><=
div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Wed, Dec=
 18, 2019 at 2:20 PM Nat Kao &lt;<a href=3D"mailto:lekao@pyxisworks.org">le=
kao@pyxisworks.org</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote=
" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);=
padding-left:1ex"><div dir=3D"ltr"><div dir=3D"ltr"><div><div>Hi, Jeff &amp=
; Ketan.<br><br>For better discussion, let&#39;s assume these first:<br><br=
>&quot;TP-MSD&quot; denotes the maximum transport label depth for traffic w=
ithout service labels.<br></div><div>&quot;SRV-TP-MSD&quot; denotes the max=
imum transport label depth for traffic with 1+ service label(s).<br><br></d=
iv><div></div>Here&#39;s one of the use cases:<br><br>A customized best-eff=
ort TE process:<br><br></div><div>1. Decide which route R (incl. VPN routes=
) to diverge from its shortest-path.<br><br></div><div>2. Compute SID-list =
S for R that satisfies the (TE or whatever) constraints.<br><br>3a. If R is=
 a plain IPv4/IPv6 route, we consult TP-MSD.<br>=C2=A0=C2=A0=C2=A0 If lengt=
h(S) &lt;=3D headend&#39;s TP-MSD:<br></div><div>=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0 Inject an SR-TE policy candidate path P with color X by =
BGP.<br></div><div>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Inject a new =
route R&#39; with color X and larger localpref value.<br></div><div>=C2=A0=
=C2=A0=C2=A0 else:<br></div><div>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
 This path is not feasible, consider another route.<br><br></div><div>3b. I=
f R is a service route, we consult SRV-TP-MSD.<br></div><div>=C2=A0=C2=A0=
=C2=A0 If length(S) &lt;=3D headend&#39;s SRV-TP-MSD:<br></div><div>=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Inject an SR-TE policy candidate path =
P with color X by BGP.<br></div><div>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0 Inject a new route R&#39; with color X and larger localpref value.<b=
r></div><div>=C2=A0=C2=A0=C2=A0 else:<br></div><div>=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0 This path is not feasible, consider another route.<br=
><br></div><div>4. Repeat 1 to 3 until the main objectives are met.(best-ef=
fort approach, some might fail)<br></div><div><br>Notes:<br><br>a) Clearly,=
 BMI-MSD &gt;=3D TP-MSD &gt;=3D SRV-TP-MSD<br></div><div>b) TP-MSD &amp; SR=
V-TP-MSD can be signaled by the same methods as BMI-MSD.<br></div><div>c) I=
f a change on headend that modifies transport label depths(ex: recirculatio=
n), TP-MSD &amp; SRV-TP-MSD shall reflect that change accordingly.<br></div=
><div>d) If a change on headend that modifies transport label depths of cer=
tain LCs, TP-MSD &amp; SRV-TP-MSD of those links shall reflect that change,=
 too.<br></div><div><br></div><div>Hope this helps.<br><br></div><div>Regar=
ds,<br></div><div>Nat<br></div><div><br></div><div><br><br></div></div></di=
v><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On W=
ed, Dec 18, 2019 at 8:44 AM Jeff Tantsura &lt;<a href=3D"mailto:jefftant.ie=
tf@gmail.com" target=3D"_blank">jefftant.ietf@gmail.com</a>&gt; wrote:<br><=
/div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;bo=
rder-left:1px solid rgb(204,204,204);padding-left:1ex">



<div>
<div name=3D"messageBodySection">
<div dir=3D"auto">Hi Nat,
<div dir=3D"auto"><br></div>
<div dir=3D"auto">Please bring your use case to the wg, MSD has specificall=
y=C2=A0<span>been</span><span>=C2=A0designed to address new types with a ve=
ry little effort.</span></div>
</div>
</div>
<div name=3D"messageSignatureSection"><br>
<div>Cheers,
<div>Jeff</div>
</div>
</div>
<div name=3D"messageReplySection">On Dec 17, 2019, 4:21 AM -0800, Ketan Tal=
aulikar (ketant) &lt;<a href=3D"mailto:ketant@cisco.com" target=3D"_blank">=
ketant@cisco.com</a>&gt;, wrote:<br>
<blockquote type=3D"cite" style=3D"margin:5px;padding-left:10px;border-left=
:thin solid rgb(26,188,156)">
<div>
<p class=3D"MsoNormal"><span>Hi Nat,</span></p>
<p class=3D"MsoNormal"><span>=C2=A0</span></p>
<p class=3D"MsoNormal"><span>The MSD framework enables us to define more/ne=
w MSD types. If there is a real use-case and requirement (as you express) a=
nd the necessary MSD type(s) can be formally defined then perhaps the WG ca=
n evaluate it.</span></p>
<p class=3D"MsoNormal"><span>=C2=A0</span></p>
<p class=3D"MsoNormal"><span>Thanks,</span></p>
<p class=3D"MsoNormal"><span>Ketan</span></p>
<p class=3D"MsoNormal"><span>=C2=A0</span></p>
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b> <span lang=
=3D"EN-US">spring &lt;<a href=3D"mailto:spring-bounces@ietf.org" target=3D"=
_blank">spring-bounces@ietf.org</a>&gt; <b>On Behalf Of</b> Nat Kao<br>
<b>Sent:</b> 17 December 2019 17:16<br>
<b>To:</b> Robert Raszuk &lt;<a href=3D"mailto:robert@raszuk.net" target=3D=
"_blank">robert@raszuk.net</a>&gt;<br>
<b>Cc:</b> SPRING WG &lt;<a href=3D"mailto:spring@ietf.org" target=3D"_blan=
k">spring@ietf.org</a>&gt;; Nat Kao &lt;<a href=3D"mailto:lekao@pyxisworks.=
org" target=3D"_blank">lekao@pyxisworks.org</a>&gt;<br>
<b>Subject:</b> Re: [spring] Different MSDs for different traffic types on =
the same headend.</span></p>
<p class=3D"MsoNormal">=C2=A0</p>
<div>
<div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-bottom:12pt">Hello, Robert.</p>
</div>
<p class=3D"MsoNormal">Surely the current BMI-MSD definition is sufficient =
for platforms without artificial boundaries.</p>
</div>
<div>
<p class=3D"MsoNormal">In this ideal case, maximum labels available for SR-=
TE policy can be inferred from BMI-MSD and VPN routes.</p>
</div>
<div>
<p class=3D"MsoNormal"><br>
However we have 3 different artificial boundaries across 3 different platfo=
rms now.</p>
</div>
<div>
<p class=3D"MsoNormal">Hardcoding these boundaries might not scale well. (E=
specially different OS versions may behave differently.)</p>
</div>
<div>
<p class=3D"MsoNormal">A standard mechanism to discover this boundary would=
 greatly help constructing SR-TE policy candidate paths.</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">Regards,</p>
</div>
<div>
<p class=3D"MsoNormal">Nat.</p>
</div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<p class=3D"MsoNormal">=C2=A0</p>
<div>
<div>
<p class=3D"MsoNormal">On Tue, Dec 17, 2019 at 5:58 PM Robert Raszuk &lt;<a=
 href=3D"mailto:robert@raszuk.net" target=3D"_blank">robert@raszuk.net</a>&=
gt; wrote:</p>
</div>
<blockquote style=3D"margin:5px;padding-left:10px;border-left:thin solid rg=
b(230,126,34)">
<div>
<p class=3D"MsoNormal">Hi Nat,</p>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">I am having a bit of difficulty understanding reason=
ing and the way you are separating transport from service labels.=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">The processing label limit usually comes from data p=
lane capabilities=C2=A0of the platform namely LFIB or hardware below.=C2=A0=
</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">Such layer is function agnostic and it does not matt=
er what role the label serves.=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">Label lookup results in pointer to a adj. rewrite on=
 the outbound side. It really does not matter if the adjacent=C2=A0peer is =
your P router, segment endpoint=C2=A0or CE.=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">Of course there are number of processing exceptions =
- for example concept of aggregate VPN label, additional header modificatio=
ns etc ...=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">Likely some platforms put such artificial=C2=A0bound=
ary between transport=C2=A0and service hence your request. But if so IMHO t=
his is more of an issue=C2=A0with specific platform or its marketing messag=
e then IETF :).=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">Many thx,<br>
R.</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
</div>
<p class=3D"MsoNormal">=C2=A0</p>
<div>
<div>
<p class=3D"MsoNormal">On Tue, Dec 17, 2019 at 6:06 AM Nat Kao &lt;<a href=
=3D"mailto:lekao@pyxisworks.org" target=3D"_blank">lekao@pyxisworks.org</a>=
&gt; wrote:</p>
</div>
<blockquote style=3D"margin:5px;padding-left:10px;border-left:thin solid rg=
b(52,152,219)">
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-bottom:12pt">Hi, Jeff.</p>
</div>
<p class=3D"MsoNormal">Consider a headend that can perform 1 of the followi=
ng 2 modes(but not both):</p>
</div>
<p class=3D"MsoNormal">1) Plain IPv4: 6 transport labels + 0 service label =
=3D&gt; traffic can be steered into a 6-label SR-TE policy.</p>
</div>
<p class=3D"MsoNormal" style=3D"margin-bottom:12pt">2) Any type of VPN: 3 t=
ransport labels + 1~3 service labels =3D&gt; traffic cannot be steered into=
 a 6-label SR-TE policy.</p>
</div>
<p class=3D"MsoNormal">a) As defined in RFC8491, the BMI-MSD is 6 for this =
headend. Do we have a standardized way to signal the transport label depth =
in mode 2?</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0=C2=A0 Maybe in a different MSD type?</p>
</div>
<p class=3D"MsoNormal">b) Since plain IPv4 and VPN routes can be steered in=
to the same SR-TE policy, do we have a standardized headend behavior in thi=
s situation?</p>
</div>
<p class=3D"MsoNormal">=C2=A0=C2=A0 (Should I open a new thread to discuss =
this? It seems not quite MSD-relative.)</p>
<div>
<div>
<div>
<div>
<div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">Thanks...</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"color:rgb(136,136,136)">Nat</span></p=
>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<blockquote style=3D"margin:5px;padding-left:10px;border-left:thin solid rg=
b(211,84,0)">
<p class=3D"MsoNormal">=C2=A0</p>
<div>
<div>
<p class=3D"MsoNormal">On Tue, Dec 17, 2019 at 7:19 AM Jeff Tantsura &lt;<a=
 href=3D"mailto:jefftant.ietf@gmail.com" target=3D"_blank">jefftant.ietf@gm=
ail.com</a>&gt; wrote:</p>
</div>
<blockquote style=3D"margin:5px;padding-left:10px;border-left:thin solid rg=
b(52,73,94)">
<div>
<div name=3D"messageBodySection">
<div>
<p class=3D"MsoNormal">Gyan,</p>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">MSD is only relevant for a device that either impose=
s the label stack (head-end) or manipulates it (BSID anchor). There are som=
e other constrains when it comes to entropy labels and ERLD, please read th=
e respective drafts.</p>
</div>
<div>
<p class=3D"MsoNormal">In general, SID stack would grow when TE is in use (=
any time you need to use additional SID to deviate from SPT), another case =
is when additional SID=E2=80=99s are used for services on the nodes, other =
than the tail-end.</p>
</div>
<div>
<p class=3D"MsoNormal">That=E2=80=99s why we&#39;ve designed MSD to be very=
 flexible to accommodate all the different use cases, it is upto computatio=
nal logic to decide how to deal with different constrains (MSD types)=C2=A0=
</p>
</div>
</div>
</div>
<div name=3D"messageSignatureSection">
<p class=3D"MsoNormal">=C2=A0</p>
<div>
<p class=3D"MsoNormal">Cheers,</p>
<div>
<p class=3D"MsoNormal">Jeff</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">P.S. you might want to see the NANOG MSD presentatio=
n I did some time ago.</p>
</div>
<div>
<p class=3D"MsoNormal"><a href=3D"https://pc.nanog.org/static/published/mee=
tings/NANOG71/1424/20171004_Tantsura_The_Critical_Role_v1.pdf" target=3D"_b=
lank">https://pc.nanog.org/static/published/meetings/NANOG71/1424/20171004_=
Tantsura_The_Critical_Role_v1.pdf</a></p>
</div>
</div>
</div>
<div name=3D"messageReplySection">
<p class=3D"MsoNormal">On Dec 14, 2019, 11:59 PM -0800, Gyan Mishra &lt;<a =
href=3D"mailto:hayabusagsm@gmail.com" target=3D"_blank">hayabusagsm@gmail.c=
om</a>&gt;, wrote:<br>
<br></p>
<blockquote style=3D"margin:5px;padding-left:10px;border-left:thin solid rg=
b(46,204,113)">
<div>
<div>
<p class=3D"MsoNormal">Jeff</p>
</div>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">With SR-MPLS with SR-TR let=E2=80=99s say if you use=
 cSPF snd don=E2=80=99t have an ERO strict explicit path defined or is a lo=
ose path, then the for the cSPF would the transport labels be 1.=C2=A0 For =
loose would also be 1 also.=C2=A0 If the path were explicit defined to egre=
ss PE and was 7 hops from ingress to egress then transport would be 6.=C2=
=A0 And if L3 vpn service sid was signaled that would be 1 vpn label. =C2=
=A0</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">Let me know if I have that right. =C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">In Nats scenario for IPv6 he has 3 vpnv6 labels. =C2=
=A0</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">Why is that? =C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">With both SR-MPLS and SRv6 the L3 vpn AFI/SAFI MBGP =
services overlay single label sits on top off SR as if does today with MPLS=
 so why 3 vpn labels.</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">So with this draft with BGP-LS and BMI-MSD you can f=
lood into the IGP the SID depth so all the nodes along the SR-TE path don=
=E2=80=99t go over the maximum which would result in an error.</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">If you set your MTU high enough in the core like 921=
6, does that overcome the SID depth issues with SR-TE?</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">Warm=C2=A0regards,</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">Gyan</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
<div>
<div>
<p class=3D"MsoNormal">On Sat, Dec 14, 2019 at 2:43 AM Nat Kao &lt;<a href=
=3D"mailto:lekao@pyxisworks.org" target=3D"_blank">lekao@pyxisworks.org</a>=
&gt; wrote:</p>
</div>
<blockquote style=3D"margin:5px;padding-left:10px;border-left:thin solid rg=
b(155,89,182)">
<div>
<div>
<p class=3D"MsoNormal">Hi, Jeff.</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">Thanks for the BMI-MSD reference. If I understand co=
rrectly:</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<div>
<p class=3D"MsoNormal">BMI-MSD =3D Transport Label Depth + Service Label De=
pth</p>
</div>
<div>
<p class=3D"MsoNormal">Only former can be utilized by SR-TE policies.</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
</div>
<div>
<p class=3D"MsoNormal">Currently do we have any method to determine the com=
position of BMI?</p>
</div>
<div>
<p class=3D"MsoNormal">We need to know the transport label depth when doing=
 service route per-destination steering.</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">This problem arises when trying to steer a plain IPv=
4 route and a VPN service route into the same SR-TE policy that exceeds the=
 transport label depth of the service route. I&#39;m trying to figure out t=
he standard behavior in this case since the headend we use currently produc=
es some interesting results.</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">Regards,</p>
</div>
<div>
<p class=3D"MsoNormal">Nat.</p>
</div>
</div>
<p class=3D"MsoNormal">=C2=A0</p>
<div>
<div>
<p class=3D"MsoNormal">On Sat, Dec 14, 2019 at 2:42 AM Jeff Tantsura &lt;<a=
 href=3D"mailto:jefftant..ietf@gmail.com" target=3D"_blank">jefftant.ietf@g=
mail.com</a>&gt; wrote:</p>
</div>
<blockquote style=3D"margin:5px;padding-left:10px;border-left:thin solid rg=
b(231,76,60)">
<div>
<div name=3D"messageBodySection">
<div>
<p class=3D"MsoNormal">Hi Nat,</p>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">Please read=C2=A0<a href=3D"https://tools.ietf.org/h=
tml/rfc8491#section-5" target=3D"_blank">https://tools.ietf.org/html/rfc849=
1#section-5</a></p>
</div>
<div>
<p class=3D"MsoNormal">Currently defined MSD types are:=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">1: BMI</p>
</div>
<div>
<p class=3D"MsoNormal">2: ERLD</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">Specifically to BMI:</p>
</div>
<div>
<div>
<p class=3D"MsoNormal">Base MPLS Imposition MSD (BMI-MSD) signals the total=
 number of MPLS=C2=A0labels that can be imposed, including all service/tran=
sport/special=C2=A0labels.</p>
</div>
<div>
<p class=3D"MsoNormal">The answer to your question is 6</p>
</div>
</div>
</div>
</div>
<div name=3D"messageSignatureSection">
<p class=3D"MsoNormal">=C2=A0</p>
<div>
<p class=3D"MsoNormal">Cheers,</p>
<div>
<p class=3D"MsoNormal">Jeff</p>
</div>
</div>
</div>
<div name=3D"messageReplySection">
<p class=3D"MsoNormal">On Dec 13, 2019, 3:42 AM -0800, Nat Kao &lt;<a href=
=3D"mailto:lekao@pyxisworks.org" target=3D"_blank">lekao@pyxisworks.org</a>=
&gt;, wrote:<br>
<br></p>
<blockquote style=3D"margin:5px;padding-left:10px;border-left:thin solid rg=
b(26,188,156)">
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-bottom:12pt">Hello, SPRING WG.</p>
</div>
<p class=3D"MsoNormal">How do we deal with an SR-TE policy headend with dif=
ferent MSDs for different types of traffic?</p>
</div>
<p class=3D"MsoNormal">For example, a headend H can impose:<br>
6 transport labels for plain IPv4 packets;<br>
5 transport labels + 1 IPv6 ExpNull label for plain IPv6 packets;</p>
</div>
<p class=3D"MsoNormal">3 transport labels=C2=A0+ 3 VPN=C2=A0 labels for VPN=
 packets.</p>
</div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<p class=3D"MsoNormal">a) For a plain IPv4 route R4 and a VPN route Rv both=
 steered into the SR-TE policy P1 with SID list &lt;S1, S2, S3, S4, S5&gt;,=
 what will H perform in this situation?<br>
b) What is the MSD of H? 6, 5 or 3?</p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal">Thanks,</p>
</div>
<div>
<p class=3D"MsoNormal">Nat.</p>
</div>
</div>
</div>
</div>
<p class=3D"MsoNormal">_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" target=3D"_blank">=
https://www.ietf.org/mailman/listinfo/spring</a></p>
</blockquote>
</div>
</div>
</blockquote>
</div>
<p class=3D"MsoNormal">_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" target=3D"_blank">=
https://www.ietf.org/mailman/listinfo/spring</a></p>
</blockquote>
</div>
</div>
<p class=3D"MsoNormal">--</p>
<div>
<div>
<div>
<div>
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"color:rgb(80,0,80)">Gyan S. Mishra</s=
pan></p>
<p class=3D"MsoNormal"><span style=3D"color:rgb(80,0,80)">IT Network Engine=
ering &amp; Technology=C2=A0</span></p>
<p class=3D"MsoNormal"><span style=3D"color:rgb(80,0,80)">Verizon Communica=
tions=C2=A0Inc. (VZ)</span></p>
<p class=3D"MsoNormal"><span style=3D"color:rgb(80,0,80)">13101 Columbia Pi=
ke FDC1 3rd Floor</span></p>
<p class=3D"MsoNormal"><span style=3D"color:rgb(80,0,80)">Silver Spring, MD=
 20904</span></p>
<p class=3D"MsoNormal"><span style=3D"color:rgb(80,0,80)">United States</sp=
an></p>
<p class=3D"MsoNormal" style=3D"background-image:initial;background-positio=
n:initial;background-repeat:initial"><span style=3D"color:rgb(80,0,80)">Pho=
ne:=C2=A0301 502-1347</span></p>
<p class=3D"MsoNormal" style=3D"background-image:initial;background-positio=
n:initial;background-repeat:initial"><span style=3D"color:rgb(80,0,80)">Ema=
il:=C2=A0<a href=3D"mailto:gyan.s.mishra@verizon.com" target=3D"_blank"><sp=
an style=3D"color:rgb(17,85,204)">gyan.s.mishra@verizon.com</span></a></spa=
n></p>
<p class=3D"MsoNormal" style=3D"background-image:initial;background-positio=
n:initial;background-repeat:initial"><span style=3D"font-family:&quot;Segoe=
 UI&quot;,sans-serif;color:black;border-width:1pt;border-style:none;border-=
color:windowtext;padding:0cm"><a href=3D"http://www.linkedin.com/in/network=
ing-technologies-consultant" target=3D"_blank">www.linkedin.com/in/networki=
ng-technologies-consultant</a></span></p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0</p>
</div>
</div>
</div>
</div>
</div>
</div>
</blockquote>
</div>
</div>
</blockquote>
</div>
</blockquote>
</div>
<p class=3D"MsoNormal">_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" target=3D"_blank">=
https://www.ietf.org/mailman/listinfo/spring</a></p>
</blockquote>
</div>
</blockquote>
</div>
</div>
</div>
_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" target=3D"_blank">=
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To: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>, "spring@ietf.org" <spring@ietf.org>
Cc: Madhav Purohit <Madhav.Purohit@ecitele.com>, Dmitry Valdman <Dmitry.Valdman@ecitele.com>, Michael Gorokhovsky <Michael.Gorokhovsky@ecitele.com>, Abhijit Gokaraju <Abhijit.Gokaraju@ecitele.com>, Sheetal Jangeed <Sheetal.Jangeed@ecitele.com>
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From: Peter Psenak <ppsenak@cisco.com>
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Subject: Re: [spring] A question regarding Section 3.2 of RFC 8402
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Hi Alexander,

On 10/12/2019 12:13, Alexander Vainshtein wrote:
> Hi all,
> 
> My colleagues and I have a question pertaining to Section 3.2 of RFC 
> 8402 
> <https://eci365.sharepoint.com/sites/technicaldocsite/genericdev/System/System%20Documents/Forms/AllItems.aspx?FolderCTID=0x012000858C3D81A4889F449868AC62A2AABDCD&id=%2Fsites%2Ftechnicaldocsite%2Fgenericdev%2FSystem%2FSystem%20Documents%2FIP%2DMPLS%2FNE%20Management%2FCLI>. 
> This section says:
> 
>     An IGP Node-SID MUST NOT be associated with a prefix that is owned by
> 
>     more than one router within the same routing domain.
> 
> The requirement itself is well understood. However, neither RFC 8402 nor 
> any other SPRING document I have seen defines the expected behavior of 
> SR-capable nodes if, due to misconfiguration, a certain prefix that is 
> owned by multiple nodes in the SR domain is associated with the Node-SID 
> in at least one of them.
> 
> There are several sub-scenarios of the misconfiguration problem above, e.g.:

there are way too many ways how one can misconfigure things and I don't 
believe we have to always standardize the way these errors are handled.

> 
> ·The prefix is owned by multiple nodes. One of these nodes advertises it 
> as associated with the Node-SID, while the other owners do not associate 
> it with any SID at all
> 
> ·The prefix is owned by multiple nodes. One of these nodes advertises it 
> as associated with the Node-SID, while one (or more) of the other nodes 
> advertise it as associated with an IGP-Prefix SID but not as a Node-SID

Above two are similar in a nature. Prefix is anycast, but at least one 
node advertise a Node-SID with such anycast prefix.

There are ways to detect the anycast prefix property - one is defined in 
the section 6 of draft-ietf-lsr-isis-srv6-extensions - e.g. A-flag. That 
section says:

"If at least one of them sets the A-Flag in its advertisement, the
  prefix/SRv6 Locator SHOULD be considered as anycast."

If the prefix is considered anycast, one should not use the SID 
advertised with the prefix as Node-SID, even when the N-flag is set for it.

Other way to detect the prefix is anycast one is simply looking at the 
number of sources that advertise it.


> 
> ·The prefix is owned by multiple nodes, and  two (or more) of these 
> nodes advertise it as associated with the Node-SID but with different 
> indices in the SRGB

this is SID conflict, where you have multiple sources of the same prefix 
advertising a different SID value.

There used to be a draft that went into details of all possible SID 
conflicts (draft-ietf-spring-conflict-resolution), but it became way too 
complex and people lost interest.


> 
> ·The prefix is owned by multiple nodes, and  two (or more) of these 
> nodes advertise it as associated with the Node-SID with the same index 
> in the SRGB.

problem is the same as the first two. Prefix is anycast, but at least 
one node advertise a Node-SID wit the anycast prefix.

thanks,
Peter

> 
> Our experiments (admittedly incomplete) with SR-capable equipment from 
> different vendors have shown that:
> 
> ·None of the tested devices have reported this situation as an error 
> when they encounter some of the problematic scenarios
> 
> ·Different devices have demonstrated different forwarding behavior when 
> they encounter some of the problematic scenarios. In some of these 
> scenarios the offending prefix would be associated with some SID and the 
> resulting forwarding behavior installed.
> 
> We think that it would be nice if the WG could define a minimal set of 
> requirements for handling this kind of misconfiguration. These 
> requirements should include at least the following:
> 
> ·A device that encounters this kind of misconfiguration SHOULD report 
> the problem to the network management layer
> 
> ·The prefix for which this kind of misconfiguration has been detected 
> SHOULD NOT be associated with any IGP Prefix-SID at all.
> 
> There may be other possibilities, but we feel that RFC 8402 is 
> underspecified in this regard,
> 
> We would highly appreciate your feedback.
> 
> Regards, and lots of thanks in advance,
> 
> Sasha (on behalf of the team).
> 
> Office: +972-39266302
> 
> Cell:      +972-549266302
> 
> Email:   Alexander.Vainshtein@ecitele.com
> 
> 
> ___________________________________________________________________________
> 
> This e-mail message is intended for the recipient only and contains 
> information which is
> CONFIDENTIAL and which may be proprietary to ECI Telecom. If you have 
> received this
> transmission in error, please inform us by e-mail, phone or fax, and 
> then delete the original
> and all copies thereof.
> ___________________________________________________________________________


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From: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
To: Peter Psenak <ppsenak@cisco.com>
CC: Madhav Purohit <Madhav.Purohit@ecitele.com>, Dmitry Valdman <Dmitry.Valdman@ecitele.com>, Michael Gorokhovsky <Michael.Gorokhovsky@ecitele.com>, Abhijit Gokaraju <Abhijit.Gokaraju@ecitele.com>, Sheetal Jangeed <Sheetal.Jangeed@ecitele.com>, "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [spring] A question regarding Section 3.2 of RFC 8402
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From: Peter Psenak <ppsenak@cisco.com>
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Subject: Re: [spring] A question regarding Section 3.2 of RFC 8402
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Hi Sasha,

please see inline:

On 09/01/2020 15:00, Alexander Vainshtein wrote:
> Peter,
> 
> Lots of thanks for your response.
> 
> I fully agree with you when you say that "there are way too many ways 
> how one can misconfigure things".
> 
> However, I think that in many cases IETF tries to standardize handling 
> of these misconfigurations, and, specifically for RFC 8660 
> <https://tools.ietf.org/html/rfc8660> deals with some of these 
> misconfigurations in Section 2.5 and in Appendix A (BTW, the SPRING 
> conflict resolution draft that you mention has been, with some 
> modifications, subsumed into these sections of  RFC 8660).
> 
> However, the conflicts that I have described are not covered by RFC 8660 
> since it only speaks about incoming label conflicts when the same 
> incoming label is mapped to multiple segments. Our case is different, 
> since we have just one Prefix Segment (same prefix, same topology and 
> same algorithm).
> 
> Regarding your references to IPv6: I think that there is a subtle 
> difference between SR-MPLS and SRv6 when it comes to Node SIDs:
> 
> -In SRv6,  you can explicitly mark the prefix as either Anycast or Node 
> SID with the preference given to Anycast (if both N-flag and A-flag are 
> set, N-flag is ignored, if one of the routers that own a prefix 
> advertises with A-flag set, the prefix becomes an Anycast one)
> 
> -In SR-MPLS you have to explicitly indicate that a given prefix (/32 for 
> IPv4 and /128 for IPv6) is a Node Segment. Without this indication the 
> Prefix SID is (implicitly) an Anycast one (see RFC 8667 
> <https://www.rfc-editor.org/rfc/rfc8667.html>).

A-flag and N-flag are prefix attributes flags and they are applicable 
equally to both IPv4 and IPv6 prefixes as well as SRv6 Locators.

thanks,
Peter



> 
> Based on this I still think that the problem my colleagues and I have 
> raised is relevant and should be addressed.
> 
> Regards,
> 
> Sasha
> 
> Office: +972-39266302
> 
> Cell:      +972-549266302
> 
> Email:   Alexander.Vainshtein@ecitele.com
> 
> -----Original Message-----
> From: Peter Psenak <ppsenak@cisco.com>
> Sent: Thursday, January 9, 2020 3:14 PM
> To: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>; spring@ietf.org
> Cc: Madhav Purohit <Madhav.Purohit@ecitele.com>; Dmitry Valdman 
> <Dmitry.Valdman@ecitele.com>; Michael Gorokhovsky 
> <Michael.Gorokhovsky@ecitele.com>; Abhijit Gokaraju 
> <Abhijit.Gokaraju@ecitele.com>; Sheetal Jangeed 
> <Sheetal.Jangeed@ecitele.com>
> Subject: Re: [spring] A question regarding Section 3.2 of RFC 8402
> 
> Hi Alexander,
> 
> On 10/12/2019 12:13, Alexander Vainshtein wrote:
> 
>  > Hi all,
> 
>  >
> 
>  > My colleagues and I have a question pertaining to Section 3.2 of RFC
> 
>  > 8402
> 
>  > 
> <https://eci365.sharepoint.com/sites/technicaldocsite/genericdev/System/System%20Documents/Forms/AllItems.aspx?FolderCTID=0x012000858C3D81A4889F449868AC62A2AABDCD&id=%2Fsites%2Ftechnicaldocsite%2Fgenericdev%2FSystem%2FSystem%20Documents%2FIP%2DMPLS%2FNE%20Management%2FCLI>. 
> 
> 
>  > This section says:
> 
>  >
> 
>  >     An IGP Node-SID MUST NOT be associated with a prefix that is owned
> 
>  > by
> 
>  >
> 
>  >     more than one router within the same routing domain.
> 
>  >
> 
>  > The requirement itself is well understood. However, neither RFC 8402
> 
>  > nor any other SPRING document I have seen defines the expected
> 
>  > behavior of SR-capable nodes if, due to misconfiguration, a certain
> 
>  > prefix that is owned by multiple nodes in the SR domain is associated
> 
>  > with the Node-SID in at least one of them.
> 
>  >
> 
>  > There are several sub-scenarios of the misconfiguration problem 
> above, e.g.:
> 
> there are way too many ways how one can misconfigure things and I don't 
> believe we have to always standardize the way these errors are handled.
> 
>  >
> 
>  > ·The prefix is owned by multiple nodes. One of these nodes advertises
> 
>  > it as associated with the Node-SID, while the other owners do not
> 
>  > associate it with any SID at all
> 
>  >
> 
>  > ·The prefix is owned by multiple nodes. One of these nodes advertises
> 
>  > it as associated with the Node-SID, while one (or more) of the other
> 
>  > nodes advertise it as associated with an IGP-Prefix SID but not as a
> 
>  > Node-SID
> 
> Above two are similar in a nature. Prefix is anycast, but at least one 
> node advertise a Node-SID with such anycast prefix.
> 
> There are ways to detect the anycast prefix property - one is defined in 
> the section 6 of draft-ietf-lsr-isis-srv6-extensions - e.g. A-flag. That 
> section says:
> 
> "If at least one of them sets the A-Flag in its advertisement, the
> 
>    prefix/SRv6 Locator SHOULD be considered as anycast."
> 
> If the prefix is considered anycast, one should not use the SID 
> advertised with the prefix as Node-SID, even when the N-flag is set for it.
> 
> Other way to detect the prefix is anycast one is simply looking at the 
> number of sources that advertise it.
> 
>  >
> 
>  > ·The prefix is owned by multiple nodes, and  two (or more) of these
> 
>  > nodes advertise it as associated with the Node-SID but with different
> 
>  > indices in the SRGB
> 
> this is SID conflict, where you have multiple sources of the same prefix
> 
> advertising a different SID value.
> 
> There used to be a draft that went into details of all possible SID
> 
> conflicts (draft-ietf-spring-conflict-resolution), but it became way too
> 
> complex and people lost interest.
> 
>  >
> 
>  > ·The prefix is owned by multiple nodes, and  two (or more) of these
> 
>  > nodes advertise it as associated with the Node-SID with the same index
> 
>  > in the SRGB.
> 
> problem is the same as the first two. Prefix is anycast, but at least
> 
> one node advertise a Node-SID wit the anycast prefix.
> 
> thanks,
> 
> Peter
> 
>  >
> 
>  > Our experiments (admittedly incomplete) with SR-capable equipment from
> 
>  > different vendors have shown that:
> 
>  >
> 
>  > ·None of the tested devices have reported this situation as an error
> 
>  > when they encounter some of the problematic scenarios
> 
>  >
> 
>  > ·Different devices have demonstrated different forwarding behavior when
> 
>  > they encounter some of the problematic scenarios. In some of these
> 
>  > scenarios the offending prefix would be associated with some SID and the
> 
>  > resulting forwarding behavior installed.
> 
>  >
> 
>  > We think that it would be nice if the WG could define a minimal set of
> 
>  > requirements for handling this kind of misconfiguration. These
> 
>  > requirements should include at least the following:
> 
>  >
> 
>  > ·A device that encounters this kind of misconfiguration SHOULD report
> 
>  > the problem to the network management layer
> 
>  >
> 
>  > ·The prefix for which this kind of misconfiguration has been detected
> 
>  > SHOULD NOT be associated with any IGP Prefix-SID at all.
> 
>  >
> 
>  > There may be other possibilities, but we feel that RFC 8402 is
> 
>  > underspecified in this regard,
> 
>  >
> 
>  > We would highly appreciate your feedback.
> 
>  >
> 
>  > Regards, and lots of thanks in advance,
> 
>  >
> 
>  > Sasha (on behalf of the team).
> 
>  >
> 
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From nobody Thu Jan  9 14:27:16 2020
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Source Packet Routing in Networking WG of the IETF.

        Title           : YANG Data Model for Segment Routing
        Authors         : Stephane Litkowski
                          Yingzhen Qu
                          Acee Lindem
                          Pushpasis Sarkar
                          Jeff Tantsura
	Filename        : draft-ietf-spring-sr-yang-15.txt
	Pages           : 30
	Date            : 2020-01-09

Abstract:
   This document defines a YANG data model ([RFC6020], [RFC7950]) for
   segment routing ([RFC8402]) configuration and operation.  This YANG
   model is intended to be used on network elements to configure or
   operate segment routing MPLS data plane [RFC8660].  This document
   defines also generic containers that SHOULD be reused by IGP protocol
   modules to support segment routing.


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https://datatracker.ietf.org/doc/draft-ietf-spring-sr-yang/

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From nobody Fri Jan 10 02:02:26 2020
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A new meeting session request has just been submitted by Bruno Decraene, a Chair of the spring working group.


---------------------------------------------------------
Working Group Name: Source Packet Routing in Networking
Area Name: Routing Area
Session Requester: Bruno Decraene

Number of Sessions: 2
Length of Session(s):  2 Hours, 2 Hours
Number of Attendees: 200
Conflicts to Avoid: 

 Technology Overlap: 6man mpls lsr idr pce
 Key Participant Conflict:  v6ops opsec


People who must be present:
  Bruno Decraene
  Martin Vigoureux
  Rob Shakir

Resources Requested:

Special Requests:
  If it&#39;s not possible to address all conflicts, chairs will try to schedule 6MAN (v6ops, opsec) related content in the first session and MPLS related content during the second session.
---------------------------------------------------------


From nobody Fri Jan 10 09:02:38 2020
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Subject: [spring] I-D Action: draft-ietf-spring-srv6-network-programming-08.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Source Packet Routing in Networking WG of the IETF.

        Title           : SRv6 Network Programming
        Authors         : Clarence Filsfils
                          Pablo Camarillo Garvia
                          John Leddy
                          Daniel Voyer
                          Satoru Matsushima
                          Zhenbin Li
	Filename        : draft-ietf-spring-srv6-network-programming-08.txt
	Pages           : 38
	Date            : 2020-01-10

Abstract:
   The SRv6 Network Programming framework enables a network operator or
   an application to specify a packet packet processing program by
   encoding a sequence of instructions in the IPv6 packet header.

   Each instruction is implemented on one or several nodes in the
   network and identified by an SRv6 Segment Identifier in the packet.

   This document defines the SRv6 Network Programming concept and
   specifies the base set of SRv6 behaviors that enables the creation of
   interoperable overlays with underlay optimization (Service Level
   Agreements).


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-spring-srv6-network-programming/

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https://www.ietf.org/rfcdiff?url2=draft-ietf-spring-srv6-network-programming-08


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To: Ron Bonica <rbonica@juniper.net>
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Thread-Topic: [spring] SRv6 Network Programming - ICMP Source Address Selection
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Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Selection
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From: Ron Bonica <rbonica@juniper.net>
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
CC: "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [spring] SRv6 Network Programming - ICMP Source Address Selection
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/wt0-YQTPeuwKqhyLqmFlBL-8sbQ>
Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Selection
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Pablo,

So, in Section 4.1, Line S03, an SRv6 node sends an ICMP Parameter Problem =
Message. What is the source address in that message?

Is it the destination address of the offending packet (i.e., A SID)? Or is =
in the address of an interface on the SRv6 node?

                                                                           =
              Ron




Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com>
Sent: Friday, January 10, 2020 11:54 AM
To: Ron Bonica <rbonica@juniper.net>
Cc: spring@ietf.org
Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Ron,

There is no behavior in draft-ietf-spring-srv6-network-programming that pro=
poses to encode a SID in the source address of the IPv6 header.

If in the future someone would propose to do such thing in another I-D; it =
is up to those authors to justify why they would want to do this, and how t=
o ensure that the processing does not break any other protocol. But as said=
, this is not in the scope of draft-ietf-spring-srv6-network-programming.

Regarding the ICMP messages:
SRH follows RFC4443 Section 2.2 with respect to how to select the ICMP Sour=
ce Address.
SRv6 Network Programming does not change this (it simply follows the SRv6 r=
ules defined by the SRH).

In your email you refer to a possibility of future protocols breaking this.=
 I don't think that we can guess what future protocols will do, and it is u=
p to those future protocols to ensure compatibility with the existing stand=
ards.

Thanks,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Tuesday, 7 January 2020 at 19:07
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: RE: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Pablo,

Let me try to ask the question another way:


1)      Is it generally acceptable for a SID to appear in the source addres=
s field of an IPv6 header?

2)      Can an exception be made for ICMP messages?

I think that the answer to the first question is "no", because doing so wou=
ld break ICMP. Think about what would happen if:


-          Node S sends a packet to Node D with a SID S as its source addre=
ss.

-          Node Q is an intermediate node on the path from Node S to Node D=
. For some reason, Node Q cannot forward the packet.

-          Node Q sends an ICMP message to Node S. The ICMP destination add=
ress is SID S.

-          The ICMP message arrives at Node A

-          Node A discards the ICMP message, because the payload is ICMP

It might be OK to make an exception for ICMP messages. This is because RFC =
4443 forbids sending an ICMP message in response to another ICMP message. H=
owever, I am not entirely sure that this is a good idea. One day in the fut=
ure, some protocol other than ICMP may try send a response to the source ad=
dress of the ICMP message.

                                                                           =
          Ron




Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Tuesday, January 7, 2020 4:18 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Ron,

It's good to see agreement on the fact that SRH follows RFC4443 Section 2.2=
 with respect to how the ICMP Source Address is selected.

Can you please point me to the text in draft-ietf-spring-srv6-network-progr=
amming that changes the behavior below from RFC4443 Section 2.2? I believe =
there is no such text.

Thanks,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Saturday, 21 December 2019 at 20:59
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Cc: "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sprin=
g@ietf.org>>
Subject: RE: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Pablo,

Section 2.2 of RFC 4443 offers the following options:

"   (a) If the message is a response to a message sent to one of the
       node's unicast addresses, the Source Address of the reply MUST be
       that same address.

   (b) If the message is a response to a message sent to any other
       address, such as

       - a multicast group address,
       - an anycast address implemented by the node, or
       - a unicast address that does not belong to the node

      the Source Address of the ICMPv6 packet MUST be a unicast address
      belonging to the node. "

So, the question boils down to whether you consider a SID to be one of the =
node's unicast addresses. If so, the answer is a). If not, the answer is b)=
.

So, which is it?

                                                    Happy Holidays,
                                                         Ron





Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Friday, December 20, 2019 12:30 PM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Ron,

I guess that draft-ietf-6man-segment-routing-header does not contain any ex=
plicit text about it because it is not needed.
Instead draft-ietf-6man-segment-routing-header contains a reference to RFC4=
443 that details in section 2.2 how to select it.

There is no text in draft-ietf-spring-srv6-network-programming that changes=
 such behavior.

Happy Holidays,
Pablo.

From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> on b=
ehalf of Ron Bonica <rbonica=3D40juniper.net@dmarc.ietf.org<mailto:rbonica=
=3D40juniper.net@dmarc.ietf.org>>
Date: Thursday, 19 December 2019 at 14:59
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>, "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sp=
ring@ietf.org>>
Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Pablo,

Can you provide a specific reference into draft-ietf-6man-segment-routing-h=
eader? I can't find the answer to my question in there.

                                                                           =
              Ron





Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Thursday, December 19, 2019 6:47 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>; spring@ie=
tf.org<mailto:spring@ietf.org>
Subject: Re: SRv6 Network Programming - ICMP Source Address Selection

Ron,

This is exactly the same as in the SRH.
There is no text in draft-ietf-spring-srv6-network-programming that changes=
 this.

Cheers,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Monday, 9 December 2019 at 23:48
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>, SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>, 6man <6man@ietf=
.org<mailto:6man@ietf.org>>
Subject: RE: SRv6 Network Programming - ICMP Source Address Selection

Pablo,

Section 2.2 of RFC 4443 offers two options. If you think that a SID is a un=
icast address, the first option is applicable. If you think that a SID is n=
ot a unicast address, the second option is applicable.

Which did you choose?

                                                                         Ro=
n



Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Monday, December 9, 2019 10:18 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>; SPRING WG=
 <spring@ietf.org<mailto:spring@ietf.org>>; 6man <6man@ietf.org<mailto:6man=
@ietf.org>>
Subject: Re: SRv6 Network Programming - ICMP Source Address Selection

Ron,

As you pointed out in your email, RFC4443 Section 2.2 is very clear about h=
ow to select the source address.
draft-ietf-spring-srv6-network-programming does not change this.

Thanks,
Pablo.

From: ipv6 <ipv6-bounces@ietf.org<mailto:ipv6-bounces@ietf.org>> on behalf =
of Ron Bonica <rbonica=3D40juniper.net@dmarc.ietf.org<mailto:rbonica=3D40ju=
niper.net@dmarc.ietf.org>>
Date: Friday, 6 December 2019 at 17:40
To: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>, 6man <6man@ietf.or=
g<mailto:6man@ietf.org>>
Subject: SRv6 Network Programming - ICMP Source Address Selection

Authors,

When an SRv6 node sends an ICMP message, how does it select the ICMP messag=
e's source address?

Section 2.2 of RFC 4443 offers two options. If you think that a SID is a un=
icast address, the first option is applicable. If you think that a SID is n=
ot a unicast address, the second option is applicable.

                                                                     Ron


Juniper Business Use Only

Please excuse any typos, sent from my 'smart'phone.

Please excuse any typos, sent from my 'smart'phone.

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<p class=3D"MsoNormal">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">So, in Section 4.1, Line S03, an SRv6 node sends an =
ICMP Parameter Problem Message. What is the source address in that message?=
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Is it the destination address of the offending packe=
t (i.e., A SID)? Or is in the address of an interface on the SRv6 node?<o:p=
></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0in;margin=
-bottom:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b>From:</b> Pablo Camarillo (pcamaril) &lt;pcamaril=
@cisco.com&gt;
<br>
<b>Sent:</b> Friday, January 10, 2020 11:54 AM<br>
<b>To:</b> Ron Bonica &lt;rbonica@juniper.net&gt;<br>
<b>Cc:</b> spring@ietf.org<br>
<b>Subject:</b> Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Ron,</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">There is no behavior in draft-i=
etf-spring-srv6-network-programming that proposes to encode a SID in the so=
urce address of the IPv6 header.</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">If in the future someone would =
propose to do such thing in another I-D; it is up to those authors to justi=
fy why they would want to do this, and how to ensure that the processing do=
es not break any other protocol. But
 as said, this is not in the scope of draft-ietf-spring-srv6-network-progra=
mming.</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Regarding the ICMP messages: <o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">SRH follows RFC4443 Section 2.2=
 with respect to how to select the ICMP Source Address.</span><o:p></o:p></=
p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">SRv6 Network Programming does n=
ot change this (it simply follows the SRv6 rules defined by the SRH).</span=
><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">In your email you refer to a po=
ssibility of future protocols breaking this. I don&#8217;t think that we ca=
n guess what future protocols will do, and it is up to those future protoco=
ls to ensure compatibility with the existing
 standards.</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Thanks,</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Pablo.</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">&nbsp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><span style=3D"font-si=
ze:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">Ron Bonica &lt;<a h=
ref=3D"mailto:rbonica@juniper.net">rbonica@juniper.net</a>&gt;<br>
<b>Date: </b>Tuesday, 7 January 2020 at 19:07<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;<a href=3D"mailto:pca=
maril@cisco.com">pcamaril@cisco.com</a>&gt;<br>
<b>Cc: </b>SPRING WG &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org=
</a>&gt;<br>
<b>Subject: </b>RE: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Let me try to ask the que=
stion another way:<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:1.0in;text-indent:-.25in=
">1)<span style=3D"font-size:7.0pt;font-family:&quot;Times New Roman&quot;,=
serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>Is it generally acceptable for a SID to appear in the source address=
 field of an IPv6 header?<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:1.0in;text-indent:-.25in=
">2)<span style=3D"font-size:7.0pt;font-family:&quot;Times New Roman&quot;,=
serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>Can an exception be made for ICMP messages?<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">I think that the answer t=
o the first question is &#8220;no&#8221;, because doing so would break ICMP=
. Think about what would happen if:<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:1.0in;text-indent:-.25in=
">-<span style=3D"font-size:7.0pt;font-family:&quot;Times New Roman&quot;,s=
erif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>Node S sends a packet to Node D with a SID S as its source address.<=
o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:1.0in;text-indent:-.25in=
">-<span style=3D"font-size:7.0pt;font-family:&quot;Times New Roman&quot;,s=
erif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>Node Q is an intermediate node on the path from Node S to Node D. Fo=
r some reason, Node Q cannot forward the packet.<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:1.0in;text-indent:-.25in=
">-<span style=3D"font-size:7.0pt;font-family:&quot;Times New Roman&quot;,s=
erif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>Node Q sends an ICMP message to Node S. The ICMP destination address=
 is SID S.<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:1.0in;text-indent:-.25in=
">-<span style=3D"font-size:7.0pt;font-family:&quot;Times New Roman&quot;,s=
erif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>The ICMP message arrives at Node A<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:1.0in;text-indent:-.25in=
">-<span style=3D"font-size:7.0pt;font-family:&quot;Times New Roman&quot;,s=
erif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>Node A discards the ICMP message, because the payload is ICMP<o:p></=
o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">It might be OK to make an=
 exception for ICMP messages. This is because RFC 4443 forbids sending an I=
CMP message in response to another ICMP message. However, I am not entirely=
 sure that this is a good idea. One
 day in the future, some protocol other than ICMP may try send a response t=
o the source address of the ICMP message.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.=
0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b>From:</b> Pablo Camari=
llo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco.com">pcamaril@cisco.com=
</a>&gt;
<br>
<b>Sent:</b> Tuesday, January 7, 2020 4:18 AM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;<br>
<b>Cc:</b> SPRING WG &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org=
</a>&gt;<br>
<b>Subject:</b> Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">Ron,=
 </span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">&nbs=
p;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">It&#=
8217;s good to see agreement on the fact that SRH follows RFC4443 Section 2=
.2 with respect to how the ICMP Source Address is selected.</span><o:p></o:=
p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">&nbs=
p;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">Can =
you please point me to the text in draft-ietf-spring-srv6-network-programmi=
ng that changes the behavior below from RFC4443 Section 2.2? I believe ther=
e is no such text.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">&nbs=
p;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">Than=
ks,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">Pabl=
o.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">&nbs=
p;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b><span style=3D"font-s=
ize:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">Ron Bonica &lt;</sp=
an><span lang=3D"ES"><a href=3D"mailto:rbonica@juniper.net"><span lang=3D"E=
N-US" style=3D"font-size:12.0pt">rbonica@juniper.net</span></a></span><span=
 style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Saturday, 21 December 2019 at 20:59<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><span lang=3D"=
ES"><a href=3D"mailto:pcamaril@cisco.com"><span lang=3D"EN-US" style=3D"fon=
t-size:12.0pt">pcamaril@cisco.com</span></a></span><span style=3D"font-size=
:12.0pt;color:black">&gt;<br>
<b>Cc: </b>&quot;</span><span lang=3D"ES"><a href=3D"mailto:spring@ietf.org=
"><span lang=3D"EN-US" style=3D"font-size:12.0pt">spring@ietf.org</span></a=
></span><span style=3D"font-size:12.0pt;color:black">&quot; &lt;</span><spa=
n lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><span lang=3D"EN-US" style=
=3D"font-size:12.0pt">spring@ietf.org</span></a></span><span style=3D"font-=
size:12.0pt;color:black">&gt;<br>
<b>Subject: </b>RE: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Section 2.2 of RFC 4443 =
offers the following options:<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&#8220;&nbsp;&nbsp; (a) =
If the message is a response to a message sent to one of the<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; node's unicast addresses, the Source Address of the reply MUST=
 be<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; that same address.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;&nbsp; (b) If the =
message is a response to a message sent to any other<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; address, such as<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; - a multicast group address,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; - an anycast address implemented by the node, or<o:p></o:p></p=
>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; - a unicast address that does not belong to the node<o:p></o:p=
></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp; the Source Address of the ICMPv6 packet MUST be a unicast address<o:=
p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp; belonging to the node. &#8220;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">So, the question boils d=
own to whether you consider a SID to be one of the node&#8217;s unicast add=
resses. If so, the answer is a). If not, the answer is b).<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">So, which is it?<o:p></o=
:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Happy Holidays,<o=
:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:1.0in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b>From:</b> Pablo Camar=
illo (pcamaril) &lt;<span lang=3D"ES"><a href=3D"mailto:pcamaril@cisco.com"=
><span lang=3D"EN-US">pcamaril@cisco.com</span></a></span>&gt;
<br>
<b>Sent:</b> Friday, December 20, 2019 12:30 PM<br>
<b>To:</b> Ron Bonica &lt;<span lang=3D"ES"><a href=3D"mailto:rbonica@junip=
er.net"><span lang=3D"EN-US">rbonica@juniper.net</span></a></span>&gt;<br>
<b>Cc:</b> <span lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><span lang=
=3D"EN-US">spring@ietf.org</span></a></span><br>
<b>Subject:</b> Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">Ron=
,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">I g=
uess that draft-ietf-6man-segment-routing-header does not contain any expli=
cit text about it because it is not needed.
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">Ins=
tead draft-ietf-6man-segment-routing-header contains a reference to RFC4443=
 that details in section 2.2 how to select it.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">There is no text in draf=
t-ietf-spring-srv6-network-programming that changes such behavior.<o:p></o:=
p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Happy Holidays,<o:p></o:=
p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Pablo.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><b><span style=3D"font-s=
ize:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">spring &lt;</span><=
span lang=3D"ES"><a href=3D"mailto:spring-bounces@ietf.org"><span lang=3D"E=
N-US" style=3D"font-size:12.0pt">spring-bounces@ietf.org</span></a></span><=
span style=3D"font-size:12.0pt;color:black">&gt; on
 behalf of Ron Bonica &lt;</span><span lang=3D"ES"><a href=3D"mailto:rbonic=
a=3D40juniper.net@dmarc.ietf.org"><span lang=3D"EN-US" style=3D"font-size:1=
2.0pt">rbonica=3D40juniper.net@dmarc.ietf.org</span></a></span><span style=
=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Thursday, 19 December 2019 at 14:59<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><span lang=3D"=
ES"><a href=3D"mailto:pcamaril@cisco.com"><span lang=3D"EN-US" style=3D"fon=
t-size:12.0pt">pcamaril@cisco.com</span></a></span><span style=3D"font-size=
:12.0pt;color:black">&gt;, &quot;</span><span lang=3D"ES"><a href=3D"mailto=
:spring@ietf.org"><span lang=3D"EN-US" style=3D"font-size:12.0pt">spring@ie=
tf.org</span></a></span><span style=3D"font-size:12.0pt;color:black">&quot;
 &lt;</span><span lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><span lang=
=3D"EN-US" style=3D"font-size:12.0pt">spring@ietf.org</span></a></span><spa=
n style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Subject: </b>Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">Can you provide a specif=
ic reference into draft-ietf-6man-segment-routing-header? I can&#8217;t fin=
d the answer to my question in there.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:1.5in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><b>From:</b> Pablo Camar=
illo (pcamaril) &lt;<span lang=3D"ES"><a href=3D"mailto:pcamaril@cisco.com"=
><span lang=3D"EN-US">pcamaril@cisco.com</span></a></span>&gt;
<br>
<b>Sent:</b> Thursday, December 19, 2019 6:47 AM<br>
<b>To:</b> Ron Bonica &lt;<span lang=3D"ES"><a href=3D"mailto:rbonica@junip=
er.net"><span lang=3D"EN-US">rbonica@juniper.net</span></a></span>&gt;;
<span lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><span lang=3D"EN-US">s=
pring@ietf.org</span></a></span><br>
<b>Subject:</b> Re: SRv6 Network Programming - ICMP Source Address Selectio=
n<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">Ron=
,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">Thi=
s is exactly the same as in the SRH.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">The=
re is no text in draft-ietf-spring-srv6-network-programming that changes th=
is.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">Che=
ers,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">Pab=
lo.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"font-s=
ize:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">Ron Bonica &lt;</sp=
an><span lang=3D"ES"><a href=3D"mailto:rbonica@juniper.net"><span lang=3D"E=
N-US" style=3D"font-size:12.0pt">rbonica@juniper.net</span></a></span><span=
 style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Monday, 9 December 2019 at 23:48<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><span lang=3D"=
ES"><a href=3D"mailto:pcamaril@cisco.com"><span lang=3D"EN-US" style=3D"fon=
t-size:12.0pt">pcamaril@cisco.com</span></a></span><span style=3D"font-size=
:12.0pt;color:black">&gt;, SPRING WG &lt;</span><span lang=3D"ES"><a href=
=3D"mailto:spring@ietf.org"><span lang=3D"EN-US" style=3D"font-size:12.0pt"=
>spring@ietf.org</span></a></span><span style=3D"font-size:12.0pt;color:bla=
ck">&gt;,
 6man &lt;</span><span lang=3D"ES"><a href=3D"mailto:6man@ietf.org"><span l=
ang=3D"EN-US" style=3D"font-size:12.0pt">6man@ietf.org</span></a></span><sp=
an style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Subject: </b>RE: SRv6 Network Programming - ICMP Source Address Selectio=
n</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Section 2.2 of RFC 4443 =
offers two options. If you think that a SID is a unicast address, the first=
 option is applicable. If you think that a SID is not a unicast address, th=
e second option is applicable.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Which did you choose?<o:=
p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:2.0in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b>From:</b> Pablo Camar=
illo (pcamaril) &lt;<span lang=3D"ES"><a href=3D"mailto:pcamaril@cisco.com"=
><span lang=3D"EN-US">pcamaril@cisco.com</span></a></span>&gt;
<br>
<b>Sent:</b> Monday, December 9, 2019 10:18 AM<br>
<b>To:</b> Ron Bonica &lt;<span lang=3D"ES"><a href=3D"mailto:rbonica@junip=
er.net"><span lang=3D"EN-US">rbonica@juniper.net</span></a></span>&gt;; SPR=
ING WG &lt;<span lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><span lang=
=3D"EN-US">spring@ietf.org</span></a></span>&gt;; 6man &lt;<span lang=3D"ES=
"><a href=3D"mailto:6man@ietf.org"><span lang=3D"EN-US">6man@ietf.org</span=
></a></span>&gt;<br>
<b>Subject:</b> Re: SRv6 Network Programming - ICMP Source Address Selectio=
n<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Ron=
,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">As =
you pointed out in your email, RFC4443 Section 2.2 is very clear about how =
to select the source address.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">dra=
ft-ietf-spring-srv6-network-programming does not change this.
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Tha=
nks,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Pab=
lo.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"font-s=
ize:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">ipv6 &lt;</span><sp=
an lang=3D"ES"><a href=3D"mailto:ipv6-bounces@ietf.org"><span lang=3D"EN-US=
" style=3D"font-size:12.0pt">ipv6-bounces@ietf.org</span></a></span><span s=
tyle=3D"font-size:12.0pt;color:black">&gt; on behalf
 of Ron Bonica &lt;</span><span lang=3D"ES"><a href=3D"mailto:rbonica=3D40j=
uniper.net@dmarc.ietf.org"><span lang=3D"EN-US" style=3D"font-size:12.0pt">=
rbonica=3D40juniper.net@dmarc.ietf.org</span></a></span><span style=3D"font=
-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Friday, 6 December 2019 at 17:40<br>
<b>To: </b>SPRING WG &lt;</span><span lang=3D"ES"><a href=3D"mailto:spring@=
ietf.org"><span lang=3D"EN-US" style=3D"font-size:12.0pt">spring@ietf.org</=
span></a></span><span style=3D"font-size:12.0pt;color:black">&gt;, 6man &lt=
;</span><span lang=3D"ES"><a href=3D"mailto:6man@ietf.org"><span lang=3D"EN=
-US" style=3D"font-size:12.0pt">6man@ietf.org</span></a></span><span style=
=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Subject: </b>SRv6 Network Programming - ICMP Source Address Selection</s=
pan><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Authors,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">When an SRv6 node sends =
an ICMP message, how does it select the ICMP message&#8217;s source address=
?<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Section 2.2 of RFC 4443 =
offers two options. If you think that a SID is a unicast address, the first=
 option is applicable. If you think that a SID is not a unicast address, th=
e second option is applicable.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:2.0in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<p class=3D"MsoNormal">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal">Please excuse any typos, sent from my 'smart'phone.<=
o:p></o:p></p>
<div id=3D"ms-outlook-mobile-signature">
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<p class=3D"MsoNormal">Please excuse any typos, sent from my 'smart'phone.<=
o:p></o:p></p>
</div>
</div>
</body>
</html>

--_000_BN7PR05MB3938FEE1C2F83C919D4CFA2AAE380BN7PR05MB3938namp_--


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From: Ron Bonica <rbonica@juniper.net>
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
CC: "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/-ApVooZjYudE6WaMlJ74oWdTnQg>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6
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Content-Type: text/plain; charset="us-ascii"
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Chairs,

I believe that we have two independent requests for a comparison of the ben=
efits of SRv6 over SR-MPLS in the network programming draft.

                                                            Ron




Juniper Business Use Only
From: spring <spring-bounces@ietf.org> On Behalf Of Pablo Camarillo (pcamar=
il)
Sent: Friday, January 10, 2020 11:55 AM
To: Ron Bonica <rbonica@juniper.net>
Cc: spring@ietf.org
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,

If you want to discuss your analysis please let's do so in a separate email=
 thread out of the context of the Working Group Last Call of draft-ietf-spr=
ing-srv6-network-programming.

As I said before: draft-ietf-spring-srv6-network-programming is a Standards=
 Track document and this topic is not about any standardization, hence out =
of scope of this document.

Same applies to other content (e.g. illustrations) that was formerly in net=
work programming and we moved to a separate draft since it was not standard=
izing anything at all and was merely informative.

Thanks,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Tuesday, 7 January 2020 at 19:17
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Pablo,

RFC 8354 reinforces my analysis in https://mailarchive.ietf.org/arch/msg/sp=
ring/3WGuQumIfcmH281nwq3s9Un6raI<https://urldefense.com/v3/__https:/mailarc=
hive.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6raI__;!!NEt6yMaO-gk!S=
olNvh35q4NS-PTVWOxXAzbTnMHltfvPWi_OSjhMYkmm_NucR6imYrrLvc35Kat6$>. Are you =
saying that you agree with this analysis?

                                             Ron






Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Tuesday, January 7, 2020 4:17 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,

SPRING has already done this work and documented the SRv6 use-cases in RFC8=
354 before progressing with the SRv6 standardization.

Further on, draft-ietf-spring-srv6-network-programming is a Standards Track=
 document.
I fail to see how a cite from RFC8354 or any other text on "SRv6 vs SR-MPLS=
" standardises anything at all.
Note that we have already removed text from draft-ietf-spring-srv6-network-=
programming (e.g. illustrations) because it was not standardising anything.

Thank you for the suggestion,
Pablo.

From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> on b=
ehalf of Ron Bonica <rbonica=3D40juniper.net@dmarc.ietf.org<mailto:rbonica=
=3D40juniper.net@dmarc.ietf.org>>
Date: Monday, 30 December 2019 at 11:08
To: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: [spring] draft-ietf-spring-srv6-network-programming: Relative adva=
ntages of SRv6

Pablo,

Would you consider adding a short section to the draft explaining the relat=
ive advantages of SRv6 over SR-MPLS? This section would explain why an netw=
ork operator would deploy SRv6 instead of SR-MPLS.

                                                                           =
              Ron



Juniper Business Use Only

Please excuse any typos, sent from my 'smart'phone.

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<div class=3D"WordSection1">
<p class=3D"MsoNormal">Chairs,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">I believe that we have two independent requests for =
a comparison of the benefits of SRv6 over SR-MPLS in the network programmin=
g draft.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;Ron<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0in;margin=
-bottom:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b>From:</b> spring &lt;spring-bounces@ietf.org&gt; =
<b>On Behalf Of
</b>Pablo Camarillo (pcamaril)<br>
<b>Sent:</b> Friday, January 10, 2020 11:55 AM<br>
<b>To:</b> Ron Bonica &lt;rbonica@juniper.net&gt;<br>
<b>Cc:</b> spring@ietf.org<br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Ron, </span><o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">If you want to discuss your analysis please let&#821=
7;s do so in a separate email thread out of the context of the Working Grou=
p Last Call of draft-ietf-spring-srv6-network-programming.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">As I said before: <span lang=3D"EN-GB">draft-ietf-sp=
ring-srv6-network-programming is a Standards Track document and this topic =
is not about any standardization, hence out of scope of this document.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Same applies to other content (=
e.g. illustrations) that was formerly in network programming and we moved t=
o a separate draft since it was not standardizing anything at all and was m=
erely informative.</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">&nbsp;&nbsp;</span><o:p></o:p><=
/p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Thanks,</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Pablo.</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:24.0pt">&nbs=
p;</span><span style=3D"font-size:24.0pt"><o:p></o:p></span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><span style=3D"font-si=
ze:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">Ron Bonica &lt;<a h=
ref=3D"mailto:rbonica@juniper.net">rbonica@juniper.net</a>&gt;<br>
<b>Date: </b>Tuesday, 7 January 2020 at 19:17<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;<a href=3D"mailto:pca=
maril@cisco.com">pcamaril@cisco.com</a>&gt;<br>
<b>Cc: </b>SPRING WG &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org=
</a>&gt;<br>
<b>Subject: </b>RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">RFC 8354 reinforces my an=
alysis in <span lang=3D"ES">
<a href=3D"https://urldefense.com/v3/__https:/mailarchive.ietf.org/arch/msg=
/spring/3WGuQumIfcmH281nwq3s9Un6raI__;!!NEt6yMaO-gk!SolNvh35q4NS-PTVWOxXAzb=
TnMHltfvPWi_OSjhMYkmm_NucR6imYrrLvc35Kat6$"><span lang=3D"EN-US">https://ma=
ilarchive.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6raI</span></a></=
span>.
 Are you saying that you agree with this analysis?<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.=
0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b>From:</b> Pablo Camari=
llo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco.com">pcamaril@cisco.com=
</a>&gt;
<br>
<b>Sent:</b> Tuesday, January 7, 2020 4:17 AM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;<br>
<b>Cc:</b> SPRING WG &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org=
</a>&gt;<br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">Ron,=
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">&nbs=
p;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">SPRI=
NG has already done this work and documented the SRv6 use-cases in RFC8354 =
before progressing with the SRv6 standardization.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">&nbs=
p;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">Furt=
her on, draft-ietf-spring-srv6-network-programming is a Standards Track doc=
ument.
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">I fa=
il to see how a cite from RFC8354 or any other text on &#8220;SRv6 vs SR-MP=
LS&#8221; standardises anything at all.
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">Note=
 that we have already removed text from draft-ietf-spring-srv6-network-prog=
ramming (e.g. illustrations) because it was not standardising anything.</sp=
an><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">&nbs=
p;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">Than=
k you for the suggestion,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">Pabl=
o.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">&nbs=
p;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b><span style=3D"font-s=
ize:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">spring &lt;</span><=
span lang=3D"ES"><a href=3D"mailto:spring-bounces@ietf.org"><span lang=3D"E=
N-US" style=3D"font-size:12.0pt">spring-bounces@ietf.org</span></a></span><=
span style=3D"font-size:12.0pt;color:black">&gt; on
 behalf of Ron Bonica &lt;</span><span lang=3D"ES"><a href=3D"mailto:rbonic=
a=3D40juniper.net@dmarc.ietf.org"><span lang=3D"EN-US" style=3D"font-size:1=
2.0pt">rbonica=3D40juniper.net@dmarc.ietf.org</span></a></span><span style=
=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Monday, 30 December 2019 at 11:08<br>
<b>To: </b>SPRING WG &lt;</span><span lang=3D"ES"><a href=3D"mailto:spring@=
ietf.org"><span lang=3D"EN-US" style=3D"font-size:12.0pt">spring@ietf.org</=
span></a></span><span style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Subject: </b>[spring] draft-ietf-spring-srv6-network-programming: Relati=
ve advantages of SRv6</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Would you consider addin=
g a short section to the draft explaining the relative advantages of SRv6 o=
ver SR-MPLS? This section would explain why an network operator would deplo=
y SRv6 instead of SR-MPLS.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;&nbsp; &nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:1.0in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div id=3D"ms-outlook-mobile-signature">
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<p class=3D"MsoNormal">Please excuse any typos, sent from my 'smart'phone.<=
o:p></o:p></p>
</div>
</div>
</body>
</html>

--_000_BN7PR05MB39388473DA8171C001866411AE380BN7PR05MB3938namp_--


From nobody Fri Jan 10 11:20:50 2020
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To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>, "spring@ietf.org" <spring@ietf.org>
References: <157867575647.27617.9212003106731647540@ietfa.amsl.com> <F026C60F-2135-4E42-8390-C34F8B5F0A4E@cisco.com>
From: "Joel M. Halpern" <jmh@joelhalpern.com>
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Date: Fri, 10 Jan 2020 14:20:41 -0500
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/Wmv1_buzXB2m2_YPciX7jXGIU-8>
Subject: Re: [spring] I-D Action: draft-ietf-spring-srv6-network-programming-08.txt
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Thank you.  The diff seems to improve the document, and addresses my 
concern.

Yours,
Joel

On 1/10/2020 12:06 PM, Pablo Camarillo (pcamaril) wrote:
> Hi all,
>   
> We have posted a new revision of draft-ietf-spring-srv6-network-programming.  This update addresses the changes discussed with Adrian, Alex and Joel in [1-4].
>   
> Many thanks to everyone who has reviewed.
>   
> Thank you,
> Pablo.
>   
> [1].- https://mailarchive.ietf.org/arch/msg/spring/1Q0ZzmkxINJRmk6ri7RkYP2Vn5w
> [2].- https://mailarchive.ietf.org/arch/msg/spring/SUgYc_AQfVsH4xF0ByPLyurneTw
> [3].- https://mailarchive.ietf.org/arch/msg/spring/ViohSSO0yOlw5dT9bA-o8AxGCZQ
> [4].- https://mailarchive.ietf.org/arch/msg/spring/BRz2EODELrNqxwyMXqjPtuZ-N00
> 
> 
> ﻿-----Original Message-----
> From: spring <spring-bounces@ietf.org> on behalf of "internet-drafts@ietf.org" <internet-drafts@ietf.org>
> Reply to: "spring@ietf.org" <spring@ietf.org>
> Date: Friday, 10 January 2020 at 18:02
> To: "i-d-announce@ietf.org" <i-d-announce@ietf.org>
> Cc: "spring@ietf.org" <spring@ietf.org>
> Subject: [spring] I-D Action: draft-ietf-spring-srv6-network-programming-08.txt
> 
>      
>      A New Internet-Draft is available from the on-line Internet-Drafts directories.
>      This draft is a work item of the Source Packet Routing in Networking WG of the IETF.
>      
>              Title           : SRv6 Network Programming
>              Authors         : Clarence Filsfils
>                                Pablo Camarillo Garvia
>                                John Leddy
>                                Daniel Voyer
>                                Satoru Matsushima
>                                Zhenbin Li
>      	Filename        : draft-ietf-spring-srv6-network-programming-08.txt
>      	Pages           : 38
>      	Date            : 2020-01-10
>      
>      Abstract:
>         The SRv6 Network Programming framework enables a network operator or
>         an application to specify a packet packet processing program by
>         encoding a sequence of instructions in the IPv6 packet header.
>      
>         Each instruction is implemented on one or several nodes in the
>         network and identified by an SRv6 Segment Identifier in the packet.
>      
>         This document defines the SRv6 Network Programming concept and
>         specifies the base set of SRv6 behaviors that enables the creation of
>         interoperable overlays with underlay optimization (Service Level
>         Agreements).
>      
>      
>      The IETF datatracker status page for this draft is:
>      https://datatracker.ietf.org/doc/draft-ietf-spring-srv6-network-programming/
>      
>      There are also htmlized versions available at:
>      https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-08
>      https://datatracker.ietf.org/doc/html/draft-ietf-spring-srv6-network-programming-08
>      
>      A diff from the previous version is available at:
>      https://www.ietf.org/rfcdiff?url2=draft-ietf-spring-srv6-network-programming-08
>      
>      
>      Please note that it may take a couple of minutes from the time of submission
>      until the htmlized version and diff are available at tools.ietf.org.
>      
>      Internet-Drafts are also available by anonymous FTP at:
>      ftp://ftp.ietf.org/internet-drafts/
>      
>      _______________________________________________
>      spring mailing list
>      spring@ietf.org
>      https://www.ietf.org/mailman/listinfo/spring
>      
> 
> _______________________________________________
> spring mailing list
> spring@ietf.org
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> 


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From: Greg Mirsky <gregimirsky@gmail.com>
Date: Sat, 11 Jan 2020 23:01:01 -0400
Message-ID: <CA+RyBmVkPK6Zv05vmmfHahXPJRRJ2SbWFuKTDTjBvvNFJWxqpw@mail.gmail.com>
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
Cc: "spring@ietf.org" <spring@ietf.org>
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Subject: Re: [spring] WGLC - draft-ietf-spring-srv6-network-programming
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Hi Pablo,
thank you for your expedient response. Please find my new notes under GIM>>
tag below in-line.

Regards,
Greg

On Fri, Jan 10, 2020 at 1:09 PM Pablo Camarillo (pcamaril) <
pcamaril@cisco.com> wrote:

> Hi Greg,
>
>
>
> Inline.
>
>
>
> Thanks,
>
> Pablo.
>
>
>
> *From: *Greg Mirsky <gregimirsky@gmail.com>
> *Date: *Tuesday, 7 January 2020 at 21:01
> *To: *Bruno Decraene <bruno.decraene@orange.com>
> *Cc: *SPRING WG List <spring@ietf.org>, "6man@ietf.org" <6man@ietf.org>,
> draft-ietf-spring-srv6-network-programming <
> draft-ietf-spring-srv6-network-programming@ietf.org>
> *Subject: *Re: WGLC - draft-ietf-spring-srv6-network-programming
> *Resent from: *<alias-bounces@ietf.org>
> *Resent to: *<cf@cisco.com>, <pcamaril@cisco.com>, <john@leddy.net>, <
> daniel.voyer@bell.ca>, <satoru.matsushima@g.softbank.co.jp>, <
> lizhenbin@huawei.com>
> *Resent date: *Tuesday, 7 January 2020 at 21:01
>
>
>
> Dear Authors, WG Chairs, et al.,
>
> I hope I'm not too late with my comments and questions on the document. P=
lease
> kindly consider them as WG LC comments:
>
> =C2=B7         I have a question regarding the following pseudo-code:
>
>   S08.   max_LE =3D (Hdr Ext Len / 2) - 1
>
>   S09.   If ((Last Entry > max_LE) or (Segments Left > (Last Entry+1)) {
>
>   S10.      Send an ICMP Parameter Problem to the Source Address,
>
>                Code 0 (Erroneous header field encountered),
>
>                Pointer set to the Segments Left field.
>
>                Interrupt packet processing and discard the packet.
>
>   S11.   }
>
>
>
> According to RFC 8200, Hdr Ext Len is the length of the extension header
> in 8-octet units, not including the first 8 octets. Thus, as I understand=
,
> max_LE is the length in 8-octet units of half of the extension header les=
s
> one. On the other hand, Last Entry and Segments Left are indices. Hence m=
y
> question, What is being compared in line S09 ( Last Entry > max_LE)? Leng=
th
> and index? If the goal is to use Hdr Ext Len to calculate the number of
> entries in the header, then what assumption is used in S08? Is it that th=
e
> entry's length is always and only 128 bits, i.e. 16 octets? I believe tha=
t
> using such an assumption is too narrowing and limiting to SRH.
>
>
>
> PC: This has already been discussed with Adrian. Please check this thread=
:
> https://mailarchive.ietf.org/arch/msg/spring/IOA_4nlNPacD2v7Jue2dkGeOABk
>
> GIM>> Thank you for the reference. In some aspects, part of my statement
is repeating your answer to Adrain. The only length on an element in SRH
considered is 128 bits, the length of IPv6 address. I think that your
explanation of how you have arrived at th following formula

    S08.   max_LE =3D (Hdr Ext Len / 2) - 1

 will benefit the document.
My question to you and SPRING WG goes beyond this scenario. Considering
presented in Singapore Unified Identifier proposals (
draft-mirsky-6man-unified-id-sr
<https://datatracker.ietf.org/doc/draft-mirsky-6man-unified-id-sr/> and
draft-wmsaxw-6man-usid-id-use
<https://datatracker.ietf.org/doc/draft-gmsm-bess-evpn-bfd/?include_text=3D=
1>),
I believe other scenarios of using SRH, with elements of length other than
128 bits should be accommodated, e.g., 32 bits-long elements.

i.

>
>
> =C2=B7         Another question is to Section 6.3. What value do you see =
in
> this section? I've noticed that draft-ietf-6man-spring-srv6-oam is in the
> Informational References section. I agree with that for the first sentenc=
e
> in the section. But I believe that the second sentence that refers to the
> new O-bit and OAM behaviors defined in  draft-ietf-6man-spring-srv6-oam
> requires it to be moved into the Normative References section. Unless
> you'll decide to remove the section altogether.
>
> PC: The O-bit and OAM behaviors described in draft-ietf-6man-spring-srv6-=
oam
> are not required to understand or implement the technology described in
> draft-ietf-spring-srv6-network-programming. However, they are relevant as
> to provide additional information to the reader. Why would it be a
> normative reference?
>
GIM>> Ali and I are discussing several aspects of
draft-ietf-6man-spring-srv6-oam. For example, the O-bit is applicable to
any OAM operation or to some part of them. Note that OAM apparatus usually
considered to include Fault Management and Performance Monitoring
protocols. Both may operate as proactive or on-demand. Is the O-bit
applicable to all OAM methods? Then, Fault Management OAM supports
Continuity Check, Connectivity Verification and, for some networks,
Automatic Protection Coordination. How O-bit is used in these methods? Now,
to the Performance Monitoring OAM. I think that the O-bit can be only used
in dual-ended one-way PM OAM. How O-bit may be used in single-ended two-way
PM OAM? Can the O-bit support the Loss Measurement? As you may see, there
are many questions to discuss and clarify in the document. I can imagine
that the result of our work on draft-ietf-6man-spring-srv6-oam may be
somewhat different from its current form. How to ensure synchronization
between SRv6 programming and OAM specifications?

>
>
> Regards,
>
> Greg
>
>
>
> On Thu, Dec 5, 2019 at 9:15 AM <bruno.decraene@orange.com> wrote:
>
> Hello SPRING,
>
>
>
> This email starts a two weeks Working Group Last Call on draft-ietf-sprin=
g-srv6-network-programming [1].
>
>
>
> Please read this document if you haven't read the most recent version, an=
d send your comments to the SPRING WG list, no later than December 20.
>
>
>
> You may copy the 6MAN WG for IPv6 related comment, but consider not dupli=
cating emails on the 6MAN mailing list for the comments which are only spri=
ng specifics.
>
>
>
> If you are raising a point which you expect will be specifically debated =
on the mailing list, consider using a specific email/thread for this point.
>
> This may help avoiding that the thread become specific to this point and =
that other points get forgotten (or that the thread get converted into para=
llel independent discussions)
>
>
>
> Thank you,
>
> Bruno
>
>
>
> [1] https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programmin=
g-05
>
>
>
>
>
> _________________________________________________________________________=
________________________________________________
>
>
>
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>
> pas etre diffuses, exploites ou copies sans autorisation. Si vous avez re=
cu ce message par erreur, veuillez le signaler
>
> a l'expediteur et le detruire ainsi que les pieces jointes. Les messages =
electroniques etant susceptibles d'alteration,
>
> Orange decline toute responsabilite si ce message a ete altere, deforme o=
u falsifie. Merci.
>
>
>
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nformation that may be protected by law;
>
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>
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>
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> --------------------------------------------------------------------
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>

--0000000000003a8b73059be8926b
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div dir=3D"ltr">Hi Pablo,<div>thank you for your expedien=
t response. Please find my new notes under GIM&gt;&gt; tag below in-line.</=
div><div><br></div><div>Regards,</div><div>Greg</div></div><br><div class=
=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Fri, Jan 10, 2020=
 at 1:09 PM Pablo Camarillo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco=
.com">pcamaril@cisco.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail=
_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204=
,204);padding-left:1ex">





<div lang=3D"ES">
<div class=3D"gmail-m_-688759207210557685WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Hi Greg,<u></u><u></u></span></=
p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Inline.<u></u><u></u></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Thanks,<u></u><u></u></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Pablo.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><u></u>=C2=A0<u></u></span></p>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(181,196,223);padding:3pt 0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><b><span lang=3D"EN-US" s=
tyle=3D"font-size:12pt;color:black">From:
</span></b><span lang=3D"EN-US" style=3D"font-size:12pt;color:black">Greg M=
irsky &lt;<a href=3D"mailto:gregimirsky@gmail.com" target=3D"_blank">gregim=
irsky@gmail.com</a>&gt;<br>
<b>Date: </b>Tuesday, 7 January 2020 at 21:01<br>
<b>To: </b>Bruno Decraene &lt;<a href=3D"mailto:bruno.decraene@orange.com" =
target=3D"_blank">bruno.decraene@orange.com</a>&gt;<br>
<b>Cc: </b>SPRING WG List &lt;<a href=3D"mailto:spring@ietf.org" target=3D"=
_blank">spring@ietf.org</a>&gt;, &quot;<a href=3D"mailto:6man@ietf.org" tar=
get=3D"_blank">6man@ietf.org</a>&quot; &lt;<a href=3D"mailto:6man@ietf.org"=
 target=3D"_blank">6man@ietf.org</a>&gt;, draft-ietf-spring-srv6-network-pr=
ogramming &lt;<a href=3D"mailto:draft-ietf-spring-srv6-network-programming@=
ietf.org" target=3D"_blank">draft-ietf-spring-srv6-network-programming@ietf=
.org</a>&gt;<br>
<b>Subject: </b>Re: WGLC - draft-ietf-spring-srv6-network-programming<br>
<b>Resent from: </b>&lt;<a href=3D"mailto:alias-bounces@ietf.org" target=3D=
"_blank">alias-bounces@ietf.org</a>&gt;<br>
<b>Resent to: </b>&lt;<a href=3D"mailto:cf@cisco.com" target=3D"_blank">cf@=
cisco.com</a>&gt;, &lt;<a href=3D"mailto:pcamaril@cisco.com" target=3D"_bla=
nk">pcamaril@cisco.com</a>&gt;, &lt;<a href=3D"mailto:john@leddy.net" targe=
t=3D"_blank">john@leddy.net</a>&gt;, &lt;<a href=3D"mailto:daniel.voyer@bel=
l.ca" target=3D"_blank">daniel.voyer@bell.ca</a>&gt;, &lt;<a href=3D"mailto=
:satoru.matsushima@g.softbank.co.jp" target=3D"_blank">satoru.matsushima@g.=
softbank.co.jp</a>&gt;, &lt;<a href=3D"mailto:lizhenbin@huawei.com" target=
=3D"_blank">lizhenbin@huawei.com</a>&gt;<br>
<b>Resent date: </b>Tuesday, 7 January 2020 at 21:01<u></u><u></u></span></=
p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US"><u><=
/u>=C2=A0<u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">Dear=
 Authors, WG Chairs, et al.,
<u></u><u></u></span></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">I ho=
pe I&#39;m not too late with my comments and questions on the document.
</span>Please kindly consider them as WG LC comments:<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<u></u><span lang=3D"EN-US" style=3D"font-size:10pt;font-family:Symbol"><sp=
an>=C2=B7<span style=3D"font:7pt &quot;Times New Roman&quot;">=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span></span></span><u></u><span dir=3D"LTR"></span><span lang=3D"EN-US">I=
 have a question regarding the following pseudo-code:<u></u><u></u></span><=
/p>
</div>
<blockquote style=3D"margin:5pt 0cm 5pt 30pt">
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">=C2=
=A0 S08. =C2=A0 max_LE =3D (Hdr Ext Len / 2) - 1<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">=C2=
=A0 S09. =C2=A0 If ((Last Entry &gt; max_LE) or (Segments Left &gt; (Last E=
ntry+1)) {<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">=C2=
=A0 S10. =C2=A0 =C2=A0 =C2=A0Send an ICMP Parameter Problem to the Source A=
ddress,<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">=C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Code 0 (Erroneous heade=
r field encountered),<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">=C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Pointer set to the Segm=
ents Left field.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">=C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Interrupt packet proces=
sing and discard the packet.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">=C2=
=A0 S11. =C2=A0 }<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US"><u><=
/u>=C2=A0<u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">Acco=
rding to RFC 8200, Hdr Ext Len is the length of the extension header in 8-o=
ctet units, not including the first 8 octets. Thus, as I understand, max_LE=
 is the length in 8-octet units of half
 of the extension header less one. On the other hand, Last Entry and Segmen=
ts Left are indices. Hence my question, What is being compared in line S09 =
( Last Entry &gt; max_LE)? Length and index? If the goal is to use Hdr Ext =
Len to calculate the number of entries
 in the header, then what assumption is used in S08? Is it that the entry&#=
39;s length is always and only 128 bits, i.e. 16 octets? I believe that usi=
ng such an assumption is too narrowing and limiting to SRH.<u></u><u></u></=
span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">PC: This has already been discu=
ssed with Adrian. Please check this thread:
</span><a href=3D"https://mailarchive.ietf.org/arch/msg/spring/IOA_4nlNPacD=
2v7Jue2dkGeOABk" target=3D"_blank"><span lang=3D"EN-US" style=3D"color:wind=
owtext;text-decoration:none">https://mailarchive.ietf.org/arch/msg/spring/I=
OA_4nlNPacD2v7Jue2dkGeOABk</span></a></p></div></blockquote></div></div></d=
iv></blockquote><div>GIM&gt;&gt; Thank you for the reference. In some aspec=
ts, part of my statement is repeating your answer to Adrain. The only lengt=
h on an element in SRH considered is 128 bits, the length of IPv6 address. =
I think that your explanation of how you have arrived at th following formu=
la</div></div><blockquote style=3D"margin:0 0 0 40px;border:none;padding:0p=
x"><div class=3D"gmail_quote"><div>=C2=A0 =C2=A0 S08. =C2=A0 max_LE =3D (Hd=
r Ext Len / 2) - 1=C2=A0 =C2=A0=C2=A0</div></div></blockquote><div class=3D=
"gmail_quote"><div>=C2=A0will benefit the document.=C2=A0</div><div>My ques=
tion to you and SPRING WG goes beyond this scenario. Considering presented =
in Singapore Unified Identifier proposals (<a href=3D"https://datatracker.i=
etf.org/doc/draft-mirsky-6man-unified-id-sr/">draft-mirsky-6man-unified-id-=
sr</a>=C2=A0and=C2=A0<a href=3D"https://datatracker.ietf.org/doc/draft-gmsm=
-bess-evpn-bfd/?include_text=3D1">draft-wmsaxw-6man-usid-id-use</a>), I bel=
ieve other scenarios of using SRH, with elements of length other than 128 b=
its should be accommodated, e.g., 32 bits-long elements.</div></div><blockq=
uote style=3D"margin:0 0 0 40px;border:none;padding:0px"><div class=3D"gmai=
l_quote"><div></div></div></blockquote>i.<br><div class=3D"gmail_quote"><bl=
ockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-lef=
t:1px solid rgb(204,204,204);padding-left:1ex"><div lang=3D"ES"><div class=
=3D"gmail-m_-688759207210557685WordSection1"><div><blockquote style=3D"marg=
in:5pt 0cm 5pt 30pt"><div><p class=3D"MsoNormal"><span lang=3D"EN-US"><u></=
u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
</div>
</blockquote>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<u></u><span style=3D"font-size:10pt;font-family:Symbol"><span>=C2=B7<span =
style=3D"font:7pt &quot;Times New Roman&quot;">=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0
</span></span></span><u></u><span dir=3D"LTR"></span><span lang=3D"EN-US">A=
nother question is to Section 6.3. What value do you see in this section? I=
&#39;ve noticed that draft-ietf-6man-spring-srv6-oam is in the Informationa=
l References section. I agree with that
 for the first sentence in the section. But I believe that the second sente=
nce that refers to the new O-bit and OAM behaviors defined in=C2=A0 draft-i=
etf-6man-spring-srv6-oam requires it to be moved into the Normative Referen=
ces section.
</span>Unless you&#39;ll decide to remove the section altogether.<u></u><u>=
</u></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">PC: The O-bit and OAM behaviors=
 described in
</span><span lang=3D"EN-US">draft-ietf-6man-spring-srv6-oam are not require=
d to understand or implement the technology described in draft-ietf-spring-=
srv6-network-programming. However, they are relevant as to provide addition=
al information to the reader. Why
 would it be a normative reference?</span></p></div></div></div></blockquot=
e><div>GIM&gt;&gt; Ali and I are discussing several aspects of draft-ietf-6=
man-spring-srv6-oam. For example, the O-bit is applicable to any OAM operat=
ion or to some part of them. Note that OAM apparatus usually considered to =
include Fault Management and Performance Monitoring protocols. Both may ope=
rate as proactive or on-demand. Is the O-bit applicable to all OAM methods?=
 Then, Fault Management OAM supports Continuity Check, Connectivity Verific=
ation and, for some networks, Automatic Protection Coordination. How O-bit =
is used in these methods? Now, to the Performance Monitoring OAM. I think t=
hat the O-bit can be only used in dual-ended one-way PM OAM. How O-bit may =
be used in single-ended two-way PM OAM? Can the O-bit support the Loss Meas=
urement? As you may see, there are many questions to discuss and clarify in=
 the document. I can imagine that the result of our work on draft-ietf-6man=
-spring-srv6-oam may be somewhat different from its current form. How to en=
sure synchronization between SRv6 programming and OAM specifications?</div>=
<blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-=
left:1px solid rgb(204,204,204);padding-left:1ex"><div lang=3D"ES"><div cla=
ss=3D"gmail-m_-688759207210557685WordSection1"><div><p class=3D"MsoNormal">=
<span lang=3D"EN-US"><u></u><u></u></span></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US"><u><=
/u>=C2=A0<u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">Rega=
rds,<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">Greg=
<u></u><u></u></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US"><u><=
/u>=C2=A0<u></u></span></p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">On T=
hu, Dec 5, 2019 at 9:15 AM &lt;</span><a href=3D"mailto:bruno.decraene@oran=
ge.com" target=3D"_blank"><span lang=3D"EN-US">bruno.decraene@orange.com</s=
pan></a><span lang=3D"EN-US">&gt; wrote:<u></u><u></u></span></p>
</div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0cm 0cm 0cm 6pt;margin:5pt 0c=
m 5pt 4.8pt">
<div>
<div>
<pre style=3D"margin-left:36pt"><span lang=3D"EN-US">Hello SPRING,</span><s=
pan lang=3D"FR"><u></u><u></u></span></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"EN-US">=C2=A0</span><span lan=
g=3D"FR"><u></u><u></u></span></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"EN-US">This email starts a tw=
o weeks Working Group Last Call on draft-ietf-spring-srv6-network-programmi=
ng [1].</span><span lang=3D"FR"><u></u><u></u></span></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"EN-US">=C2=A0</span><span lan=
g=3D"FR"><u></u><u></u></span></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"EN-US">Please read this docum=
ent if you haven&#39;t read the most recent version, and send your comments=
 to the SPRING WG list, no later than December 20.</span><span lang=3D"FR">=
<u></u><u></u></span></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"EN-US">=C2=A0</span><span lan=
g=3D"FR"><u></u><u></u></span></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"EN-US">You may copy the 6MAN =
WG for IPv6 related comment, but consider not duplicating emails on the 6MA=
N mailing list for the comments which are only spring specifics.</span><spa=
n lang=3D"FR"><u></u><u></u></span></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"EN-US">=C2=A0</span><span lan=
g=3D"FR"><u></u><u></u></span></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"EN-US">If you are raising a p=
oint which you expect will be specifically debated on the mailing list, con=
sider using a specific email/thread for this point.</span><span lang=3D"FR"=
><u></u><u></u></span></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"EN-US">This may help avoiding=
 that the thread become specific to this point and that other points get fo=
rgotten (or that the thread get converted into parallel independent discuss=
ions)</span><span lang=3D"FR"><u></u><u></u></span></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"EN-US">=C2=A0</span><span lan=
g=3D"FR"><u></u><u></u></span></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"EN-US">Thank you,</span><span=
 lang=3D"FR"><u></u><u></u></span></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"EN-US">Bruno</span><span lang=
=3D"FR"><u></u><u></u></span></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"EN-US">=C2=A0</span><span lan=
g=3D"FR"><u></u><u></u></span></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"EN-US">[1] </span><a href=3D"=
https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-05" =
target=3D"_blank"><span lang=3D"EN-US">https://tools.ietf.org/html/draft-ie=
tf-spring-srv6-network-programming-05</span></a><span lang=3D"FR"><u></u><u=
></u></span></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"EN-US">=C2=A0</span><span lan=
g=3D"FR"><u></u><u></u></span></pre>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">
<span lang=3D"EN-US">=C2=A0</span><span lang=3D"FR"><u></u><u></u></span></=
p>
</div>
<pre style=3D"margin-left:36pt"><span lang=3D"FR">_________________________=
___________________________________________________________________________=
_____________________<u></u><u></u></span></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"FR"><u></u>=C2=A0<u></u></spa=
n></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"FR">Ce message et ses pieces =
jointes peuvent contenir des informations confidentielles ou privilegiees e=
t ne doivent donc<u></u><u></u></span></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"FR">pas etre diffuses, exploi=
tes ou copies sans autorisation. Si vous avez recu ce message par erreur, v=
euillez le signaler<u></u><u></u></span></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"FR">a l&#39;expediteur et le =
detruire ainsi que les pieces jointes. Les messages electroniques etant sus=
ceptibles d&#39;alteration,<u></u><u></u></span></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"FR">Orange decline toute resp=
onsabilite si ce message a ete altere, deforme ou falsifie. Merci.<u></u><u=
></u></span></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"FR"><u></u>=C2=A0<u></u></spa=
n></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"FR">This message and its atta=
chments may contain confidential or privileged information that may be prot=
ected by law;<u></u><u></u></span></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"FR">they should not be distri=
buted, used or copied without authorisation.<u></u><u></u></span></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"FR">If you have received this=
 email in error, please notify the sender and delete this message and its a=
ttachments.<u></u><u></u></span></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"FR">As emails may be altered,=
 Orange is not liable for messages that have been modified, changed or fals=
ified.<u></u><u></u></span></pre>
<pre style=3D"margin-left:36pt"><span lang=3D"FR">Thank you.<u></u><u></u><=
/span></pre>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">----=
----------------------------------------------------------------<br>
IETF IPv6 working group mailing list<br>
</span><a href=3D"mailto:ipv6@ietf.org" target=3D"_blank"><span lang=3D"EN-=
US">ipv6@ietf.org</span></a><span lang=3D"EN-US"><br>
Administrative Requests: </span><a href=3D"https://www.ietf.org/mailman/lis=
tinfo/ipv6" target=3D"_blank"><span lang=3D"EN-US">https://www.ietf.org/mai=
lman/listinfo/ipv6</span></a><span lang=3D"EN-US"><br>
--------------------------------------------------------------------<u></u>=
<u></u></span></p>
</blockquote>
</div>
</div>
</div>

</blockquote></div></div>

--0000000000003a8b73059be8926b--


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From: <bruno.decraene@orange.com>
To: Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>
CC: "spring@ietf.org" <spring@ietf.org>, "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
Thread-Topic: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6
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Ron,


From: spring [mailto:spring-bounces@ietf.org] On Behalf Of Ron Bonica
Sent: Friday, January 10, 2020 8:14 PM
To: Pablo Camarillo (pcamaril)
Cc: spring@ietf.org
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Chairs,

I believe that we have two independent requests for a comparison of the ben=
efits of SRv6 over SR-MPLS in the network programming draft.

A comparison of the benefits of SRv6 over SR-MPLS is one thing that could p=
ossibly be discussed if there is interest from the WG.
E.g. to help network provider make a choice, or in the context of "beyond S=
Rv6" to help the WG identify the benefit/cost analysis of existing solution=
s and what we want to achieve with new/extensions to SR data planes.

But why do you think that this would belong to draft-ietf-spring-srv6-netwo=
rk-programming?

Thanks,
--Bruno


                                                            Ron




Juniper Business Use Only
From: spring <spring-bounces@ietf.org> On Behalf Of Pablo Camarillo (pcamar=
il)
Sent: Friday, January 10, 2020 11:55 AM
To: Ron Bonica <rbonica@juniper.net>
Cc: spring@ietf.org
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,

If you want to discuss your analysis please let's do so in a separate email=
 thread out of the context of the Working Group Last Call of draft-ietf-spr=
ing-srv6-network-programming.

As I said before: draft-ietf-spring-srv6-network-programming is a Standards=
 Track document and this topic is not about any standardization, hence out =
of scope of this document.

Same applies to other content (e.g. illustrations) that was formerly in net=
work programming and we moved to a separate draft since it was not standard=
izing anything at all and was merely informative.

Thanks,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Tuesday, 7 January 2020 at 19:17
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Pablo,

RFC 8354 reinforces my analysis in https://mailarchive.ietf.org/arch/msg/sp=
ring/3WGuQumIfcmH281nwq3s9Un6raI<https://urldefense.com/v3/__https:/mailarc=
hive.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6raI__;!!NEt6yMaO-gk!S=
olNvh35q4NS-PTVWOxXAzbTnMHltfvPWi_OSjhMYkmm_NucR6imYrrLvc35Kat6$>. Are you =
saying that you agree with this analysis?

                                             Ron






Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Tuesday, January 7, 2020 4:17 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,

SPRING has already done this work and documented the SRv6 use-cases in RFC8=
354 before progressing with the SRv6 standardization.

Further on, draft-ietf-spring-srv6-network-programming is a Standards Track=
 document.
I fail to see how a cite from RFC8354 or any other text on "SRv6 vs SR-MPLS=
" standardises anything at all.
Note that we have already removed text from draft-ietf-spring-srv6-network-=
programming (e.g. illustrations) because it was not standardising anything.

Thank you for the suggestion,
Pablo.

From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> on b=
ehalf of Ron Bonica <rbonica=3D40juniper.net@dmarc.ietf.org<mailto:rbonica=
=3D40juniper.net@dmarc.ietf.org>>
Date: Monday, 30 December 2019 at 11:08
To: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: [spring] draft-ietf-spring-srv6-network-programming: Relative adva=
ntages of SRv6

Pablo,

Would you consider adding a short section to the draft explaining the relat=
ive advantages of SRv6 over SR-MPLS? This section would explain why an netw=
ork operator would deploy SRv6 instead of SR-MPLS.

                                                                           =
              Ron



Juniper Business Use Only

Please excuse any typos, sent from my 'smart'phone.

___________________________________________________________________________=
______________________________________________

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Orange decline toute responsabilite si ce message a ete altere, deforme ou =
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This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;
they should not be distributed, used or copied without authorisation.
If you have received this email in error, please notify the sender and dele=
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<p class=3D"MsoNormal"><span style=3D"mso-ascii-font-family:Calibri;mso-han=
si-font-family:Calibri;mso-bidi-font-family:&quot;Times New Roman&quot;;col=
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Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span>=
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<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><b><span lang=3D"EN-US"=
 style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&=
quot;;mso-fareast-font-family:&quot;Times New Roman&quot;;mso-ansi-language=
:EN-US">From:</span></b><span lang=3D"EN-US" style=3D"font-size:10.0pt;font=
-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;mso-fareast-font-family:&=
quot;Times New Roman&quot;;mso-ansi-language:EN-US">
 spring [mailto:spring-bounces@ietf.org] <b>On Behalf Of </b>Ron Bonica<br>
<b>Sent:</b> Friday, January 10, 2020 8:14 PM<br>
<b>To:</b> Pablo Camarillo (pcamaril)<br>
<b>Cc:</b> spring@ietf.org<br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">Chairs,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">I believe that we have two independent requ=
ests for a comparison of the benefits of SRv6 over SR-MPLS in the network p=
rogramming draft.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US">A comparison of the bene=
fits of SRv6 over SR-MPLS is one thing that could
 possibly be discussed if there is interest from the WG.<o:p></o:p></span><=
/p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US">E.g. to help network pro=
vider make a choice, or in the context of &#8220;beyond
 SRv6&#8221; to help the WG identify the benefit/cost analysis of existing =
solutions and what we want to achieve with new/extensions to SR data planes.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US">But why do you think tha=
t this would belong to draft-ietf-spring-srv6-network-programming?
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US">Thanks,<o:p></o:p></span=
></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US">--Bruno<o:p></o:p></span=
></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span>=
</p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;Ron<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:35.4pt;margin-bottom:.=
0001pt;text-align:center">
<span lang=3D"EN-US" style=3D"font-size:7.0pt;color:black;mso-ansi-language=
:EN-US">Juniper Business Use Only</span><span lang=3D"EN-US" style=3D"mso-a=
nsi-language:EN-US"><o:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><b><span lang=3D"EN-US"=
 style=3D"mso-ansi-language:EN-US">From:</span></b><span lang=3D"EN-US" sty=
le=3D"mso-ansi-language:EN-US"> spring &lt;spring-bounces@ietf.org&gt;
<b>On Behalf Of </b>Pablo Camarillo (pcamaril)<br>
<b>Sent:</b> Friday, January 10, 2020 11:55 AM<br>
<b>To:</b> Ron Bonica &lt;rbonica@juniper.net&gt;<br>
<b>Cc:</b> spring@ietf.org<br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">Ron,
</span><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">If you want to discuss your analysis please=
 let&#8217;s do so in a separate email thread out of the context of the Wor=
king Group Last Call of draft-ietf-spring-srv6-network-programming.<o:p></o=
:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">As I said before:
</span><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-GB">draft-ietf-sp=
ring-srv6-network-programming is a Standards Track document and this topic =
is not about any standardization, hence out of scope of this document.
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">Same applies to other content (e.g. illustr=
ations) that was formerly in network programming and we moved to a separate=
 draft since it was not standardizing anything
 at all and was merely informative.</span><span lang=3D"EN-US" style=3D"mso=
-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">&nbsp;&nbsp;</span><span lang=3D"EN-US" sty=
le=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">Thanks,</span><span lang=3D"EN-US" style=3D=
"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">Pablo.</span><span lang=3D"EN-US" style=3D"=
mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB" st=
yle=3D"font-size:24.0pt;mso-ansi-language:EN-GB">&nbsp;</span><span lang=3D=
"EN-US" style=3D"font-size:24.0pt;mso-ansi-language:EN-US"><o:p></o:p></spa=
n></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><b><span lang=3D"EN-US"=
 style=3D"font-size:12.0pt;color:black;mso-ansi-language:EN-US">From:
</span></b><span lang=3D"EN-US" style=3D"font-size:12.0pt;color:black;mso-a=
nsi-language:EN-US">Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">r=
bonica@juniper.net</a>&gt;<br>
<b>Date: </b>Tuesday, 7 January 2020 at 19:17<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;<a href=3D"mailto:pca=
maril@cisco.com">pcamaril@cisco.com</a>&gt;<br>
<b>Cc: </b>SPRING WG &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org=
</a>&gt;<br>
<b>Subject: </b>RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6</span><span lang=3D"EN-US" style=3D"mso-ansi-lang=
uage:EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">Pablo,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">RFC 8354 reinforces my analysis in
</span><span lang=3D"ES" style=3D"mso-ansi-language:ES"><a href=3D"https://=
urldefense.com/v3/__https:/mailarchive.ietf.org/arch/msg/spring/3WGuQumIfcm=
H281nwq3s9Un6raI__;!!NEt6yMaO-gk!SolNvh35q4NS-PTVWOxXAzbTnMHltfvPWi_OSjhMYk=
mm_NucR6imYrrLvc35Kat6$"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN=
-US">https://mailarchive.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6r=
aI</span></a></span><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">.
 Are you saying that you agree with this analysis?<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0cm;margin-bottom:0cm;margin-left:71.4pt;margin-bottom=
:.0001pt;text-align:center">
<span lang=3D"EN-US" style=3D"font-size:7.0pt;color:black;mso-ansi-language=
:EN-US">Juniper Business Use Only</span><span lang=3D"EN-US" style=3D"mso-a=
nsi-language:EN-US"><o:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><b><span lang=3D"EN-US"=
 style=3D"mso-ansi-language:EN-US">From:</span></b><span lang=3D"EN-US" sty=
le=3D"mso-ansi-language:EN-US"> Pablo Camarillo (pcamaril) &lt;<a href=3D"m=
ailto:pcamaril@cisco.com">pcamaril@cisco.com</a>&gt;
<br>
<b>Sent:</b> Tuesday, January 7, 2020 4:17 AM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;<br>
<b>Cc:</b> SPRING WG &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org=
</a>&gt;<br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">Ron,</span><span lang=3D"EN-US" style=3D"ms=
o-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">&nbsp;</span><span lang=3D"EN-US" style=3D"=
mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">SPRING has already done this work and docum=
ented the SRv6 use-cases in RFC8354 before progressing with the SRv6 standa=
rdization.</span><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:=
p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">&nbsp;</span><span lang=3D"EN-US" style=3D"=
mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">Further on, draft-ietf-spring-srv6-network-=
programming is a Standards Track document.
</span><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">I fail to see how a cite from RFC8354 or an=
y other text on &#8220;SRv6 vs SR-MPLS&#8221; standardises anything at all.
</span><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">Note that we have already removed text from=
 draft-ietf-spring-srv6-network-programming (e.g. illustrations) because it=
 was not standardising anything.</span><span lang=3D"EN-US" style=3D"mso-an=
si-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">&nbsp;</span><span lang=3D"EN-US" style=3D"=
mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">Thank you for the suggestion,</span><span l=
ang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">Pablo.</span><span lang=3D"EN-US" style=3D"=
mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">&nbsp;</span><span lang=3D"EN-US" style=3D"=
mso-ansi-language:EN-US"><o:p></o:p></span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><b><span lang=3D"EN-US=
" style=3D"font-size:12.0pt;color:black;mso-ansi-language:EN-US">From:
</span></b><span lang=3D"EN-US" style=3D"font-size:12.0pt;color:black;mso-a=
nsi-language:EN-US">spring &lt;</span><span lang=3D"ES" style=3D"mso-ansi-l=
anguage:ES"><a href=3D"mailto:spring-bounces@ietf.org"><span lang=3D"EN-US"=
 style=3D"font-size:12.0pt;mso-ansi-language:EN-US">spring-bounces@ietf.org=
</span></a></span><span lang=3D"EN-US" style=3D"font-size:12.0pt;color:blac=
k;mso-ansi-language:EN-US">&gt;
 on behalf of Ron Bonica &lt;</span><span lang=3D"ES" style=3D"mso-ansi-lan=
guage:ES"><a href=3D"mailto:rbonica=3D40juniper.net@dmarc.ietf.org"><span l=
ang=3D"EN-US" style=3D"font-size:12.0pt;mso-ansi-language:EN-US">rbonica=3D=
40juniper.net@dmarc.ietf.org</span></a></span><span lang=3D"EN-US" style=3D=
"font-size:12.0pt;color:black;mso-ansi-language:EN-US">&gt;<br>
<b>Date: </b>Monday, 30 December 2019 at 11:08<br>
<b>To: </b>SPRING WG &lt;</span><span lang=3D"ES" style=3D"mso-ansi-languag=
e:ES"><a href=3D"mailto:spring@ietf.org"><span lang=3D"EN-US" style=3D"font=
-size:12.0pt;mso-ansi-language:EN-US">spring@ietf.org</span></a></span><spa=
n lang=3D"EN-US" style=3D"font-size:12.0pt;color:black;mso-ansi-language:EN=
-US">&gt;<br>
<b>Subject: </b>[spring] draft-ietf-spring-srv6-network-programming: Relati=
ve advantages of SRv6</span><span lang=3D"EN-US" style=3D"mso-ansi-language=
:EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">Pablo,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">Would you consider adding a short section =
to the draft explaining the relative advantages of SRv6 over SR-MPLS? This =
section would explain why an network operator
 would deploy SRv6 instead of SR-MPLS.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ron<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0cm;margin-bottom:0cm;margin-left:107.4pt;margin-botto=
m:.0001pt;text-align:center;margin-bottom:..0001pt">
<span lang=3D"EN-US" style=3D"font-size:7.0pt;color:black;mso-ansi-language=
:EN-US">Juniper Business Use Only</span><span lang=3D"EN-US" style=3D"mso-a=
nsi-language:EN-US"><o:p></o:p></span></p>
<div id=3D"ms-outlook-mobile-signature">
<div>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">Please excuse any typos, sent from my 'smar=
t'phone.<o:p></o:p></span></p>
</div>
</div>
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From: <bruno.decraene@orange.com>
To: SPRING WG <spring@ietf.org>
Thread-Topic: draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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Subject: Re: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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Hi SPRING WG,

We have large support for the early allocation and no objection.
I'll forward the request to our AD.

Thank you,
--Bruno

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of bruno.decraene@o=
range.com
Sent: Thursday, December 19, 2019 5:54 PM
To: SPRING WG
Subject: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early=
 Allocation Call


Hi SPRING WG,



This begins a 2 week Early Allocation call for a "Ethernet" value from the =
"Protocol Numbers" registry.

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-9.1

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-5.3

https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml



In parallel of the Working Group Last Call which is currently running, the =
authors are requesting for early code point allocation from IANA as impleme=
ntations are under way.



The criteria for early allocation are:

   a.  The code points must be from a space designated as "RFC

       Required", "IETF Review", or "Standards Action".  Additionally,

       requests for early assignment of code points from a

       "Specification Required" registry are allowed if the

       specification will be published as an RFC.



   b.  The format, semantics, processing, and other rules related to

       handling the protocol entities defined by the code points

       (henceforth called "specifications") must be adequately described

       in an Internet-Draft.



   c.  The specifications of these code points must be stable; i.e., if

       there is a change, implementations based on the earlier and later

       specifications must be seamlessly interoperable.



   d.  The Working Group chairs and Area Directors (ADs) judge that

       there is sufficient interest in the community for early (pre-RFC)

       implementation and deployment, or that failure to make an early

       allocation might lead to contention for the code point in the

       field.

https://tools.ietf.org/html/rfc7120#section-2



I believe the above conditions are met. (minus the AD judgement which is fu=
rther down in the process)



As a reminder, this topic has mainly been discussed following IETF 105 (Mon=
tr=E9al) both during the meeting and on the mailing list.

During IETF 106 it has been discussed in the IntArea WG. https://datatracke=
r.ietf.org/meeting/106/proceedings#intarea



Note that this code point is not to be specific to SRv6. Depending on AD gu=
idance, this specific code point even be moved from draft-ietf-spring-srv6-=
network-programming into a specific 1 page draft.



If you support early adoption,  please include "support" along with any com=
ments about the draft's technical solution.



If you do not support early allocation, please include "no support" in your=
 email and indicate why.



Thank you,

--Bruno


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<body lang=3D"FR" link=3D"blue" vlink=3D"purple" style=3D"tab-interval:35.4=
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<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
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idi-font-family:&quot;Times New Roman&quot;;color:#1F497D;mso-ansi-language=
:EN-US">Hi SPRING WG,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-fareast-font-family:Calibri;mso-hansi-font-family:Calibri;mso-b=
idi-font-family:&quot;Times New Roman&quot;;color:#1F497D;mso-ansi-language=
:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-fareast-font-family:Calibri;mso-hansi-font-family:Calibri;mso-b=
idi-font-family:&quot;Times New Roman&quot;;color:#1F497D;mso-ansi-language=
:EN-US">We have large support for the early allocation
 and no objection.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-fareast-font-family:Calibri;mso-hansi-font-family:Calibri;mso-b=
idi-font-family:&quot;Times New Roman&quot;;color:#1F497D;mso-ansi-language=
:EN-US">I&#8217;ll forward the request to our AD.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-fareast-font-family:Calibri;mso-hansi-font-family:Calibri;mso-b=
idi-font-family:&quot;Times New Roman&quot;;color:#1F497D;mso-ansi-language=
:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-fareast-font-family:Calibri;mso-hansi-font-family:Calibri;mso-b=
idi-font-family:&quot;Times New Roman&quot;;color:#1F497D;mso-ansi-language=
:EN-US">Thank you,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-fareast-font-family:Calibri;mso-hansi-font-family:Calibri;mso-b=
idi-font-family:&quot;Times New Roman&quot;;color:#1F497D;mso-ansi-language=
:EN-US">--Bruno<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-fareast-font-family:Calibri;mso-hansi-font-family:Calibri;mso-b=
idi-font-family:&quot;Times New Roman&quot;;color:#1F497D;mso-ansi-language=
:EN-US"><o:p>&nbsp;</o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span class=3D"SpellE">=
<b><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;san=
s-serif&quot;;mso-fareast-font-family:&quot;Times New Roman&quot;;mso-farea=
st-language:FR">From</span></b></span><b><span style=3D"font-size:10.0pt;fo=
nt-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;mso-fareast-font-family=
:&quot;Times New Roman&quot;;mso-fareast-language:FR">:</span></b><span sty=
le=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot=
;;mso-fareast-font-family:&quot;Times New Roman&quot;;mso-fareast-language:=
FR">
<span class=3D"SpellE">spring</span> [mailto:spring-bounces@ietf.org] <b>On=
 Behalf Of
</b>bruno.decraene@orange.com<br>
<b>Sent:</b> Thursday, December 19, 2019 5:54 PM<br>
<b>To:</b> SPRING WG<br>
<b>Subject:</b> [spring] draft-ietf-spring-srv6-network-programming - 2 wee=
k Early Allocation Call<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><o:p>&nbsp;</o:p></p>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US">Hi SPRING WG,<o:p></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US">This begins a 2 week Early Allocation call for a &#8220;Ether=
net&#8221; value from the &quot;Protocol Numbers&quot; registry.<o:p></o:p>=
</span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><a href=3D"https://tools.ietf.org/html/draft-ietf-spring-srv6=
-network-programming-07#section-9.1">https://tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-07#section-9.1</a><o:p></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><a href=3D"https://tools.ietf.org/html/draft-ietf-spring-srv6=
-network-programming-07#section-5.3">https://tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-07#section-5.3</a><o:p></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><a href=3D"https://www.iana.org/assignments/protocol-numbers/=
protocol-numbers.xhtml">https://www.iana.org/assignments/protocol-numbers/p=
rotocol-numbers.xhtml</a><o:p></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US">In parallel of the Working Group Last Call which is currently=
 running, the authors are requesting for early code point allocation from I=
ANA as implementations are under way.<o:p></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US">The criteria for early allocation are:<o:p></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp; </span>a.<span =
style=3D"mso-spacerun:yes">&nbsp; </span>The code points must be from a spa=
ce designated as &quot;RFC<o:p></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>Required&quot;, &quot;IETF Review&quot;, or &quot;Standards=
 Action&quot;.<span style=3D"mso-spacerun:yes">&nbsp; </span>Additionally,<=
o:p></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>requests for early assignment of code points from a<o:p></o=
:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>&quot;Specification Required&quot; registry are allowed if =
the<o:p></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>specification will be published as an RFC.<o:p></o:p></span=
></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp; </span>b.<span =
style=3D"mso-spacerun:yes">&nbsp; </span>The format, semantics, processing,=
 and other rules related to<o:p></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>handling the protocol entities defined by the code points<o=
:p></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>(henceforth called &quot;specifications&quot;) must be adeq=
uately described<o:p></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>in an Internet-Draft.<o:p></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp; </span>c.<span =
style=3D"mso-spacerun:yes">&nbsp; </span>The specifications of these code p=
oints must be stable; i.e., if<o:p></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>there is a change, implementations based on the earlier and=
 later<o:p></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>specifications must be seamlessly interoperable.<o:p></o:p>=
</span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp; </span>d.<span =
style=3D"mso-spacerun:yes">&nbsp; </span>The Working Group chairs and Area =
Directors (ADs) judge that<o:p></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>there is sufficient interest in the community for early (pr=
e-RFC)<o:p></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>implementation and deployment, or that failure to make an e=
arly<o:p></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>allocation might lead to contention for the code point in t=
he<o:p></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>field.<o:p></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><a href=3D"https://tools.ietf.org/html/rfc7120#section-2">htt=
ps://tools.ietf.org/html/rfc7120#section-2</a><o:p></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US">I believe the above conditions are met. (minus the AD judgeme=
nt which is further down in the process)<o:p></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US">As a reminder, this topic has mainly been discussed following=
 IETF 105 (Montr=E9al) both during the meeting and on the mailing list.<o:p=
></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US">During IETF 106 it has been discussed in the IntArea WG. <a h=
ref=3D"https://datatracker.ietf.org/meeting/106/proceedings#intarea">https:=
//datatracker.ietf.org/meeting/106/proceedings#intarea</a><o:p></o:p></span=
></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US">Note that this code point is not to be specific to SRv6. Depe=
nding on AD guidance, this specific code point even be moved from draft-iet=
f-spring-srv6-network-programming into a specific 1 page draft.<o:p></o:p><=
/span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US">If you support early adoption, &nbsp;please include &#8220;su=
pport&#8221; along with any comments about the draft&#8217;s technical solu=
tion.<o:p></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US">If you do not support early allocation, please include &#8220=
;no support&#8221; in your email and indicate why.<o:p></o:p></span></pre>
<pre style=3D"margin-left:35.4pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:35.4pt">Thank you,<o:p></o:p></pre>
<pre style=3D"margin-left:35.4pt">--Bruno<o:p></o:p></pre>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><o:p>&nbsp;</o:p></p>
<pre style=3D"margin-left:35.4pt">_________________________________________=
___________________________________________________________________________=
_____<o:p></o:p></pre>
<pre style=3D"margin-left:35.4pt"><o:p>&nbsp;</o:p></pre>
<pre style=3D"margin-left:35.4pt">Ce message et ses pieces jointes peuvent =
contenir des informations confidentielles ou privilegiees et ne doivent don=
c<o:p></o:p></pre>
<pre style=3D"margin-left:35.4pt">pas etre diffuses, exploites ou copies sa=
ns autorisation. Si vous avez recu ce message par erreur, veuillez le signa=
ler<o:p></o:p></pre>
<pre style=3D"margin-left:35.4pt">a l'expediteur et le detruire ainsi que l=
es pieces jointes. Les messages electroniques etant susceptibles d'alterati=
on,<o:p></o:p></pre>
<pre style=3D"margin-left:35.4pt">Orange decline toute responsabilite si ce=
 message a ete altere, deforme ou falsifie. Merci.<o:p></o:p></pre>
<pre style=3D"margin-left:35.4pt"><o:p>&nbsp;</o:p></pre>
<pre style=3D"margin-left:35.4pt">This message and its attachments may cont=
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<pre style=3D"margin-left:35.4pt">they should not be distributed, used or c=
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<pre style=3D"margin-left:35.4pt">Thank you.<o:p></o:p></pre>
</div>
<PRE>______________________________________________________________________=
___________________________________________________

Ce message et ses pieces jointes peuvent contenir des informations confiden=
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pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler
a l'expediteur et le detruire ainsi que les pieces jointes. Les messages el=
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Orange decline toute responsabilite si ce message a ete altere, deforme ou =
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This message and its attachments may contain confidential or privileged inf=
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Martin,

As per RFC 7120 early allocation process, we'd like to request AD approval =
for early allocation of an "Ethernet" value from the "Protocol Numbers" reg=
istry

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-9.1

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-5.3

https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml

Thank you,
--Bruno


From: DECRAENE Bruno TGI/OLN
Sent: Monday, January 13, 2020 2:49 PM
To: SPRING WG
Subject: RE: draft-ietf-spring-srv6-network-programming - 2 week Early Allo=
cation Call

Hi SPRING WG,

We have large support for the early allocation and no objection.
I'll forward the request to our AD.

Thank you,
--Bruno

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of bruno.decraene@o=
range.com
Sent: Thursday, December 19, 2019 5:54 PM
To: SPRING WG
Subject: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early=
 Allocation Call


Hi SPRING WG,



This begins a 2 week Early Allocation call for a "Ethernet" value from the =
"Protocol Numbers" registry.

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-9.1

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#s=
ection-5.3

https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml



In parallel of the Working Group Last Call which is currently running, the =
authors are requesting for early code point allocation from IANA as impleme=
ntations are under way.



The criteria for early allocation are:

   a.  The code points must be from a space designated as "RFC

       Required", "IETF Review", or "Standards Action".  Additionally,

       requests for early assignment of code points from a

       "Specification Required" registry are allowed if the

       specification will be published as an RFC.



   b.  The format, semantics, processing, and other rules related to

       handling the protocol entities defined by the code points

       (henceforth called "specifications") must be adequately described

       in an Internet-Draft.



   c.  The specifications of these code points must be stable; i.e., if

       there is a change, implementations based on the earlier and later

       specifications must be seamlessly interoperable.



   d.  The Working Group chairs and Area Directors (ADs) judge that

       there is sufficient interest in the community for early (pre-RFC)

       implementation and deployment, or that failure to make an early

       allocation might lead to contention for the code point in the

       field.

https://tools.ietf.org/html/rfc7120#section-2



I believe the above conditions are met. (minus the AD judgement which is fu=
rther down in the process)



As a reminder, this topic has mainly been discussed following IETF 105 (Mon=
tr=E9al) both during the meeting and on the mailing list.

During IETF 106 it has been discussed in the IntArea WG. https://datatracke=
r.ietf.org/meeting/106/proceedings#intarea



Note that this code point is not to be specific to SRv6. Depending on AD gu=
idance, this specific code point even be moved from draft-ietf-spring-srv6-=
network-programming into a specific 1 page draft.



If you support early adoption,  please include "support" along with any com=
ments about the draft's technical solution.



If you do not support early allocation, please include "no support" in your=
 email and indicate why.



Thank you,

--Bruno


___________________________________________________________________________=
______________________________________________



Ce message et ses pieces jointes peuvent contenir des informations confiden=
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<body lang=3D"FR" link=3D"blue" vlink=3D"purple" style=3D"tab-interval:35.4=
pt">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"mso-ascii-font-family:Calibri;mso-far=
east-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family=
:&quot;Times New Roman&quot;;color:#1F497D">Martin,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-ascii-font-family:Calibri;mso-far=
east-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family=
:&quot;Times New Roman&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-fareast-font-family:Calibri;mso-hansi-font-family:Calibri;mso-b=
idi-font-family:&quot;Times New Roman&quot;;color:#1F497D;mso-ansi-language=
:EN-US">As per RFC 7120 early allocation process,
 we&#8217;d like to request AD approval for early allocation of an &#8220;E=
thernet&#8221; value from the &quot;Protocol Numbers&quot; registry<o:p></o=
:p></span></p>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><a href=3D"http=
s://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#secti=
on-9.1">https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programm=
ing-07#section-9.1</a><o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><a href=3D"http=
s://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#secti=
on-5.3">https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programm=
ing-07#section-5.3</a><o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><a href=3D"http=
s://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml">https=
://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml</a><o:p=
></o:p></span></pre>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-fareast-font-family:Calibri;mso-hansi-font-family:Calibri;mso-b=
idi-font-family:&quot;Times New Roman&quot;;color:#1F497D;mso-ansi-language=
:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-fareast-font-family:Calibri;mso-hansi-font-family:Calibri;mso-b=
idi-font-family:&quot;Times New Roman&quot;;color:#1F497D;mso-ansi-language=
:EN-US">Thank you,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-fareast-font-family:Calibri;mso-hansi-font-family:Calibri;mso-b=
idi-font-family:&quot;Times New Roman&quot;;color:#1F497D;mso-ansi-language=
:EN-US">--Bruno<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-fareast-font-family:Calibri;mso-hansi-font-family:Calibri;mso-b=
idi-font-family:&quot;Times New Roman&quot;;color:#1F497D;mso-ansi-language=
:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-fareast-font-family:Calibri;mso-hansi-font-family:Calibri;mso-b=
idi-font-family:&quot;Times New Roman&quot;;color:#1F497D;mso-ansi-language=
:EN-US"><o:p>&nbsp;</o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span class=3D"SpellE">=
<b><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;san=
s-serif&quot;;mso-fareast-font-family:&quot;Times New Roman&quot;;mso-farea=
st-language:FR">From</span></b></span><b><span style=3D"font-size:10.0pt;fo=
nt-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;mso-fareast-font-family=
:&quot;Times New Roman&quot;;mso-fareast-language:FR">:</span></b><span sty=
le=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot=
;;mso-fareast-font-family:&quot;Times New Roman&quot;;mso-fareast-language:=
FR">
 DECRAENE Bruno TGI/OLN <br>
<b>Sent:</b> Monday, January 13, 2020 2:49 PM<br>
<b>To:</b> SPRING WG<br>
<b>Subject:</b> RE: draft-ietf-spring-srv6-network-programming - 2 week Ear=
ly Allocation Call<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US">Hi SPRING WG,<o:p></o:p></spa=
n></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US">We have large support for the=
 early allocation and no objection.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US">I&#8217;ll forward the reques=
t to our AD.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US">Thank you,<o:p></o:p></span><=
/p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US">--Bruno<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><b><span style=3D"font-=
size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;mso-farea=
st-font-family:&quot;Times New Roman&quot;;mso-fareast-language:FR">From:</=
span></b><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&qu=
ot;sans-serif&quot;;mso-fareast-font-family:&quot;Times New Roman&quot;;mso=
-fareast-language:FR">
 spring [mailto:spring-bounces@ietf.org] <b>On Behalf Of </b>bruno.decraene=
@orange.com<br>
<b>Sent:</b> Thursday, December 19, 2019 5:54 PM<br>
<b>To:</b> SPRING WG<br>
<b>Subject:</b> [spring] draft-ietf-spring-srv6-network-programming - 2 wee=
k Early Allocation Call<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><o:p>&nbsp;</o:p></p>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US">Hi SPRING WG,<o:p></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US">This begins a 2 week Early Allocation call for a &#8220;Ether=
net&#8221; value from the &quot;Protocol Numbers&quot; registry.<o:p></o:p>=
</span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><a href=3D"https://tools.ietf.org/html/draft-ietf-spring-srv6=
-network-programming-07#section-9.1">https://tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-07#section-9.1</a><o:p></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><a href=3D"https://tools.ietf.org/html/draft-ietf-spring-srv6=
-network-programming-07#section-5.3">https://tools.ietf.org/html/draft-ietf=
-spring-srv6-network-programming-07#section-5.3</a><o:p></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><a href=3D"https://www.iana.org/assignments/protocol-numbers/=
protocol-numbers.xhtml">https://www.iana.org/assignments/protocol-numbers/p=
rotocol-numbers.xhtml</a><o:p></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US">In parallel of the Working Group Last Call which is currently=
 running, the authors are requesting for early code point allocation from I=
ANA as implementations are under way.<o:p></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US">The criteria for early allocation are:<o:p></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp; </span>a.<span =
style=3D"mso-spacerun:yes">&nbsp; </span>The code points must be from a spa=
ce designated as &quot;RFC<o:p></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>Required&quot;, &quot;IETF Review&quot;, or &quot;Standards=
 Action&quot;.<span style=3D"mso-spacerun:yes">&nbsp; </span>Additionally,<=
o:p></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"> <span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;</span>requests for early assignment of code points from a<o:p></o=
:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>&quot;Specification Required&quot; registry are allowed if =
the<o:p></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>specification will be published as an RFC.<o:p></o:p></span=
></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp; </span>b.<span =
style=3D"mso-spacerun:yes">&nbsp; </span>The format, semantics, processing,=
 and other rules related to<o:p></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>handling the protocol entities defined by the code points<o=
:p></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>(henceforth called &quot;specifications&quot;) must be adeq=
uately described<o:p></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>in an Internet-Draft.<o:p></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp; </span>c.<span =
style=3D"mso-spacerun:yes">&nbsp; </span>The specifications of these code p=
oints must be stable; i.e., if<o:p></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>there is a change, implementations based on the earlier and=
 later<o:p></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>specifications must be seamlessly interoperable.<o:p></o:p>=
</span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp; </span>d.<span =
style=3D"mso-spacerun:yes">&nbsp; </span>The Working Group chairs and Area =
Directors (ADs) judge that<o:p></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>there is sufficient interest in the community for early (pr=
e-RFC)<o:p></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>implementation and deployment, or that failure to make an e=
arly<o:p></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>allocation might lead to contention for the code point in t=
he<o:p></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; </span>field.<o:p></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><a href=3D"https://tools.ietf.org/html/rfc7120#section-2">htt=
ps://tools.ietf.org/html/rfc7120#section-2</a><o:p></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US">I believe the above conditions are met. (minus the AD judgeme=
nt which is further down in the process)<o:p></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US">As a reminder, this topic has mainly been discussed following=
 IETF 105 (Montr=E9al) both during the meeting and on the mailing list.<o:p=
></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US">During IETF 106 it has been discussed in the IntArea WG. <a h=
ref=3D"https://datatracker.ietf.org/meeting/106/proceedings#intarea">https:=
//datatracker.ietf.org/meeting/106/proceedings#intarea</a><o:p></o:p></span=
></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US">Note that this code point is not to be specific to SRv6. Depe=
nding on AD guidance, this specific code point even be moved from draft-iet=
f-spring-srv6-network-programming into a specific 1 page draft.<o:p></o:p><=
/span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US">If you support early adoption, &nbsp;please include &#8220;su=
pport&#8221; along with any comments about the draft&#8217;s technical solu=
tion.<o:p></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US">If you do not support early allocation, please include &#8220=
;no support&#8221; in your email and indicate why.<o:p></o:p></span></pre>
<pre style=3D"margin-left:70.8pt"><span lang=3D"EN-US" style=3D"mso-ansi-la=
nguage:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:70.8pt">Thank you,<o:p></o:p></pre>
<pre style=3D"margin-left:70.8pt">--Bruno<o:p></o:p></pre>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><o:p>&nbsp;</o:p></p>
<pre style=3D"margin-left:70.8pt">_________________________________________=
___________________________________________________________________________=
_____<o:p></o:p></pre>
<pre style=3D"margin-left:70.8pt"><o:p>&nbsp;</o:p></pre>
<pre style=3D"margin-left:70.8pt">Ce message et ses pieces jointes peuvent =
contenir des informations confidentielles ou privilegiees et ne doivent don=
c<o:p></o:p></pre>
<pre style=3D"margin-left:70.8pt">pas etre diffuses, exploites ou copies sa=
ns autorisation. Si vous avez recu ce message par erreur, veuillez le signa=
ler<o:p></o:p></pre>
<pre style=3D"margin-left:70.8pt">a l'expediteur et le detruire ainsi que l=
es pieces jointes. Les messages electroniques etant susceptibles d'alterati=
on,<o:p></o:p></pre>
<pre style=3D"margin-left:70.8pt">Orange decline toute responsabilite si ce=
 message a ete altere, deforme ou falsifie. Merci.<o:p></o:p></pre>
<pre style=3D"margin-left:70.8pt"><o:p>&nbsp;</o:p></pre>
<pre style=3D"margin-left:70.8pt">This message and its attachments may cont=
ain confidential or privileged information that may be protected by law;<o:=
p></o:p></pre>
<pre style=3D"margin-left:70.8pt">they should not be distributed, used or c=
opied without authorisation.<o:p></o:p></pre>
<pre style=3D"margin-left:70.8pt">If you have received this email in error,=
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<pre style=3D"margin-left:70.8pt">As emails may be altered, Orange is not l=
iable for messages that have been modified, changed or falsified.<o:p></o:p=
></pre>
<pre style=3D"margin-left:70.8pt">Thank you.<o:p></o:p></pre>
</div>
<PRE>______________________________________________________________________=
___________________________________________________

Ce message et ses pieces jointes peuvent contenir des informations confiden=
tielles ou privilegiees et ne doivent donc
pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler
a l'expediteur et le detruire ainsi que les pieces jointes. Les messages el=
ectroniques etant susceptibles d'alteration,
Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.

This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;
they should not be distributed, used or copied without authorisation.
If you have received this email in error, please notify the sender and dele=
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To: "arusso@amsl.com" <arusso@amsl.com>, "martin.vigoureux@nokia.com" <martin.vigoureux@nokia.com>
CC: "spring@ietf.org" <spring@ietf.org>, RFC Errata System <rfc-editor@rfc-editor.org>, "abashandy.ietf@gmail.com" <abashandy.ietf@gmail.com>, "cfilsfil@cisco.com" <cfilsfil@cisco.com>, "stefano@previdi.net" <stefano@previdi.net>, "stephane.litkowski@orange.com" <stephane.litkowski@orange.com>, "robjs@google.com" <robjs@google.com>, "db3546@att.com" <db3546@att.com>, "aretana.ietf@gmail.com" <aretana.ietf@gmail.com>, "robjs@google.com" <robjs@google.com>
Thread-Topic: [Technical Errata Reported] RFC8660 (5891)
Thread-Index: AQHVyPqtdPQLC8o5JEqKzFpgVohkRqfoq4yQ
Date: Mon, 13 Jan 2020 14:43:41 +0000
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Thread-Topic: [spring] SRv6 Network Programming - ICMP Source Address Selection
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Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Selection
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From nobody Mon Jan 13 10:29:19 2020
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To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>, "rbonica@juniper.net" <rbonica@juniper.net>
Cc: "spring@ietf.org" <spring@ietf.org>
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From: "Joel M. Halpern" <jmh@joelhalpern.com>
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Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Selection
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Let me try asking the question a different way.  (I hope I understand 
Ron;s question.)

RFC 4443 clearly allows the ICMP source to be the destination address of 
the offending packet.  You seem to be saying that sometimes that is okay 
for SRH  / network programming.

At the same time, the SRH document and the network programming document 
are both quite clear that SRv6 SIDs are not IPv6 addresses.  They are 
other kinds of things that can be prefix routed.
If SRv6 SIDs are NOT IPv6 addresses, then there would seem to be a 
problem with putting them in the source address field of an ICMP 
message.  There is no document that describes or allows anything other 
than an IPv6 address as the source address of an IPv6 ICMP.

It seems like it ought to be possible to clarify this with some text. 
It does seem that something ought to be said.

Yours,
Joel

On 1/13/2020 12:30 PM, Pablo Camarillo (pcamaril) wrote:
> Ron,
> 
> You cannot pre-select or enforce one of the two options you refer to below.
> 
> The ICMP behaviors/considerations for SRv6 NET-PGM are the same as in 
> the SRH.
> 
> It boils down to: when you generate an ICMP Parameter Problem Message 
> you follow the logic described in RFC4443 section 2.2 to choose the 
> source address of the packet.
> 
> RFC4443 offers two options A and B.
> 
> In your implementation you need to develop both options and depending on 
> the type of address you will choose either A or B. It is not possible to 
> create an implementation shortcut and pre-select/enforce only one of them.
> 
> Can you please point me to the text in 
> draft-ietf-spring-srv6-network-programming that suggests that the ICMP 
> considerations are changed with respect to the SRH? I believe there is none.
> 
> Thank you,
> 
> Pablo.
> 
> *From: *Ron Bonica <rbonica@juniper.net>
> *Date: *Friday, 10 January 2020 at 20:09
> *To: *"Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
> *Cc: *"spring@ietf.org" <spring@ietf.org>
> *Subject: *RE: [spring] SRv6 Network Programming - ICMP Source Address 
> Selection
> 
> Pablo,
> 
> So, in Section 4.1, Line S03, an SRv6 node sends an ICMP Parameter 
> Problem Message. What is the source address in that message?
> 
> Is it the destination address of the offending packet (i.e., A SID)? Or 
> is in the address of an interface on the SRv6 node?
> 
>                                                                                           Ron
> 
> Juniper Business Use Only
> 
> *From:*Pablo Camarillo (pcamaril) <pcamaril@cisco.com>
> *Sent:* Friday, January 10, 2020 11:54 AM
> *To:* Ron Bonica <rbonica@juniper.net>
> *Cc:* spring@ietf.org
> *Subject:* Re: [spring] SRv6 Network Programming - ICMP Source Address 
> Selection
> 
> Ron,
> 
> There is no behavior in draft-ietf-spring-srv6-network-programming that 
> proposes to encode a SID in the source address of the IPv6 header.
> 
> If in the future someone would propose to do such thing in another I-D; 
> it is up to those authors to justify why they would want to do this, and 
> how to ensure that the processing does not break any other protocol. But 
> as said, this is not in the scope of 
> draft-ietf-spring-srv6-network-programming.
> 
> Regarding the ICMP messages:
> 
> SRH follows RFC4443 Section 2.2 with respect to how to select the ICMP 
> Source Address.
> 
> SRv6 Network Programming does not change this (it simply follows the 
> SRv6 rules defined by the SRH).
> 
> In your email you refer to a possibility of future protocols breaking 
> this. I don’t think that we can guess what future protocols will do, and 
> it is up to those future protocols to ensure compatibility with the 
> existing standards.
> 
> Thanks,
> 
> Pablo.
> 
> *From: *Ron Bonica <rbonica@juniper.net <mailto:rbonica@juniper.net>>
> *Date: *Tuesday, 7 January 2020 at 19:07
> *To: *"Pablo Camarillo (pcamaril)" <pcamaril@cisco.com 
> <mailto:pcamaril@cisco.com>>
> *Cc: *SPRING WG <spring@ietf.org <mailto:spring@ietf.org>>
> *Subject: *RE: [spring] SRv6 Network Programming - ICMP Source Address 
> Selection
> 
> Pablo,
> 
> Let me try to ask the question another way:
> 
> 1)Is it generally acceptable for a SID to appear in the source address 
> field of an IPv6 header?
> 
> 2)Can an exception be made for ICMP messages?
> 
> I think that the answer to the first question is “no”, because doing so 
> would break ICMP. Think about what would happen if:
> 
> -Node S sends a packet to Node D with a SID S as its source address.
> 
> -Node Q is an intermediate node on the path from Node S to Node D. For 
> some reason, Node Q cannot forward the packet.
> 
> -Node Q sends an ICMP message to Node S. The ICMP destination address is 
> SID S.
> 
> -The ICMP message arrives at Node A
> 
> -Node A discards the ICMP message, because the payload is ICMP
> 
> It might be OK to make an exception for ICMP messages. This is because 
> RFC 4443 forbids sending an ICMP message in response to another ICMP 
> message. However, I am not entirely sure that this is a good idea. One 
> day in the future, some protocol other than ICMP may try send a response 
> to the source address of the ICMP message.
> 
>                                                                                       Ron
> 
> Juniper Business Use Only
> 
> *From:*Pablo Camarillo (pcamaril) <pcamaril@cisco.com 
> <mailto:pcamaril@cisco.com>>
> *Sent:* Tuesday, January 7, 2020 4:18 AM
> *To:* Ron Bonica <rbonica@juniper.net <mailto:rbonica@juniper.net>>
> *Cc:* SPRING WG <spring@ietf.org <mailto:spring@ietf.org>>
> *Subject:* Re: [spring] SRv6 Network Programming - ICMP Source Address 
> Selection
> 
> Ron,
> 
> It’s good to see agreement on the fact that SRH follows RFC4443 Section 
> 2.2 with respect to how the ICMP Source Address is selected.
> 
> Can you please point me to the text in 
> draft-ietf-spring-srv6-network-programming that changes the behavior 
> below from RFC4443 Section 2.2? I believe there is no such text.
> 
> Thanks,
> 
> Pablo.
> 
> *From: *Ron Bonica <rbonica@juniper.net <mailto:rbonica@juniper.net>>
> *Date: *Saturday, 21 December 2019 at 20:59
> *To: *"Pablo Camarillo (pcamaril)" <pcamaril@cisco.com 
> <mailto:pcamaril@cisco.com>>
> *Cc: *"spring@ietf.org <mailto:spring@ietf.org>" <spring@ietf.org 
> <mailto:spring@ietf.org>>
> *Subject: *RE: [spring] SRv6 Network Programming - ICMP Source Address 
> Selection
> 
> Pablo,
> 
> Section 2.2 of RFC 4443 offers the following options:
> 
> “   (a) If the message is a response to a message sent to one of the
> 
>         node's unicast addresses, the Source Address of the reply MUST be
> 
>         that same address.
> 
>     (b) If the message is a response to a message sent to any other
> 
>         address, such as
> 
>         - a multicast group address,
> 
>         - an anycast address implemented by the node, or
> 
>         - a unicast address that does not belong to the node
> 
>        the Source Address of the ICMPv6 packet MUST be a unicast address
> 
>        belonging to the node. “
> 
> So, the question boils down to whether you consider a SID to be one of 
> the node’s unicast addresses. If so, the answer is a). If not, the 
> answer is b).
> 
> So, which is it?
> 
>                                                      Happy Holidays,
> 
>                                                           Ron
> 
> Juniper Business Use Only
> 
> *From:*Pablo Camarillo (pcamaril) <pcamaril@cisco.com 
> <mailto:pcamaril@cisco.com>>
> *Sent:* Friday, December 20, 2019 12:30 PM
> *To:* Ron Bonica <rbonica@juniper.net <mailto:rbonica@juniper.net>>
> *Cc:* spring@ietf.org <mailto:spring@ietf.org>
> *Subject:* Re: [spring] SRv6 Network Programming - ICMP Source Address 
> Selection
> 
> Ron,
> 
> I guess that draft-ietf-6man-segment-routing-header does not contain any 
> explicit text about it because it is not needed.
> 
> Instead draft-ietf-6man-segment-routing-header contains a reference to 
> RFC4443 that details in section 2.2 how to select it.
> 
> There is no text in draft-ietf-spring-srv6-network-programming that 
> changes such behavior.
> 
> Happy Holidays,
> 
> Pablo.
> 
> *From: *spring <spring-bounces@ietf.org 
> <mailto:spring-bounces@ietf.org>> on behalf of Ron Bonica 
> <rbonica=40juniper.net@dmarc.ietf.org 
> <mailto:rbonica=40juniper.net@dmarc.ietf.org>>
> *Date: *Thursday, 19 December 2019 at 14:59
> *To: *"Pablo Camarillo (pcamaril)" <pcamaril@cisco.com 
> <mailto:pcamaril@cisco.com>>, "spring@ietf.org <mailto:spring@ietf.org>" 
> <spring@ietf.org <mailto:spring@ietf.org>>
> *Subject: *Re: [spring] SRv6 Network Programming - ICMP Source Address 
> Selection
> 
> Pablo,
> 
> Can you provide a specific reference into 
> draft-ietf-6man-segment-routing-header? I can’t find the answer to my 
> question in there.
> 
>                                                                                           Ron
> 
> Juniper Business Use Only
> 
> *From:*Pablo Camarillo (pcamaril) <pcamaril@cisco.com 
> <mailto:pcamaril@cisco.com>>
> *Sent:* Thursday, December 19, 2019 6:47 AM
> *To:* Ron Bonica <rbonica@juniper.net <mailto:rbonica@juniper.net>>; 
> spring@ietf.org <mailto:spring@ietf.org>
> *Subject:* Re: SRv6 Network Programming - ICMP Source Address Selection
> 
> Ron,
> 
> This is exactly the same as in the SRH.
> 
> There is no text in draft-ietf-spring-srv6-network-programming that 
> changes this.
> 
> Cheers,
> 
> Pablo.
> 
> *From: *Ron Bonica <rbonica@juniper.net <mailto:rbonica@juniper.net>>
> *Date: *Monday, 9 December 2019 at 23:48
> *To: *"Pablo Camarillo (pcamaril)" <pcamaril@cisco.com 
> <mailto:pcamaril@cisco.com>>, SPRING WG <spring@ietf.org 
> <mailto:spring@ietf.org>>, 6man <6man@ietf.org <mailto:6man@ietf.org>>
> *Subject: *RE: SRv6 Network Programming - ICMP Source Address Selection
> 
> Pablo,
> 
> Section 2.2 of RFC 4443 offers two options. If you think that a SID is a 
> unicast address, the first option is applicable. If you think that a SID 
> is not a unicast address, the second option is applicable.
> 
> Which did you choose?
> 
>                                                                           Ron
> 
> Juniper Business Use Only
> 
> *From:*Pablo Camarillo (pcamaril) <pcamaril@cisco.com 
> <mailto:pcamaril@cisco.com>>
> *Sent:* Monday, December 9, 2019 10:18 AM
> *To:* Ron Bonica <rbonica@juniper.net <mailto:rbonica@juniper.net>>; 
> SPRING WG <spring@ietf.org <mailto:spring@ietf.org>>; 6man 
> <6man@ietf.org <mailto:6man@ietf.org>>
> *Subject:* Re: SRv6 Network Programming - ICMP Source Address Selection
> 
> Ron,
> 
> As you pointed out in your email, RFC4443 Section 2.2 is very clear 
> about how to select the source address.
> 
> draft-ietf-spring-srv6-network-programming does not change this.
> 
> Thanks,
> 
> Pablo.
> 
> *From: *ipv6 <ipv6-bounces@ietf.org <mailto:ipv6-bounces@ietf.org>> on 
> behalf of Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org 
> <mailto:rbonica=40juniper.net@dmarc.ietf.org>>
> *Date: *Friday, 6 December 2019 at 17:40
> *To: *SPRING WG <spring@ietf.org <mailto:spring@ietf.org>>, 6man 
> <6man@ietf.org <mailto:6man@ietf.org>>
> *Subject: *SRv6 Network Programming - ICMP Source Address Selection
> 
> Authors,
> 
> When an SRv6 node sends an ICMP message, how does it select the ICMP 
> message’s source address?
> 
> Section 2.2 of RFC 4443 offers two options. If you think that a SID is a 
> unicast address, the first option is applicable. If you think that a SID 
> is not a unicast address, the second option is applicable.
> 
>                                                                       Ron
> 
> Juniper Business Use Only
> 
> Please excuse any typos, sent from my 'smart'phone.
> 
> Please excuse any typos, sent from my 'smart'phone.
> 
> Please excuse any typos, sent from my 'smart'phone.
> 
> 
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
> 


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From: Ron Bonica <rbonica@juniper.net>
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
CC: "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [spring] SRv6 Network Programming - ICMP Source Address Selection
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/UHhtN2LNMgkDG1dGDH2NujPutJw>
Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Selection
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--_000_BN7PR05MB39381FB65ED5B034D21267F0AE350BN7PR05MB3938namp_
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Pablo,

The problem isn't a statement in the network programming draft. It is an om=
ission in the network programming draft.

If the network programming draft unequivocally stated that a SID is a unica=
st address of the instantiating node, the following text from RFC 4443 woul=
d apply:


"If the message is a response to a message sent to one of the node's unicas=
t addresses, the Source Address of the reply MUST be  that same address."


If the network programming draft unequivocally stated that a SID is a not u=
nicast address of the instantiating node, the following text from RFC 4443 =
would apply:


If the message is a response to a message sent to any other address, the So=
urce Address of the ICMPv6 packet MUST be a unicast address belonging to th=
e node.

                                                                           =
                                 Ron



Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com>
Sent: Monday, January 13, 2020 12:31 PM
To: Ron Bonica <rbonica@juniper.net>
Cc: spring@ietf.org
Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Ron,

You cannot pre-select or enforce one of the two options you refer to below.

The ICMP behaviors/considerations for SRv6 NET-PGM are the same as in the S=
RH.
It boils down to: when you generate an ICMP Parameter Problem Message you f=
ollow the logic described in RFC4443 section 2.2 to choose the source addre=
ss of the packet.
RFC4443 offers two options A and B.
In your implementation you need to develop both options and depending on th=
e type of address you will choose either A or B. It is not possible to crea=
te an implementation shortcut and pre-select/enforce only one of them.

Can you please point me to the text in draft-ietf-spring-srv6-network-progr=
amming that suggests that the ICMP considerations are changed with respect =
to the SRH? I believe there is none.

Thank you,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Friday, 10 January 2020 at 20:09
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Cc: "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sprin=
g@ietf.org>>
Subject: RE: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Pablo,

So, in Section 4.1, Line S03, an SRv6 node sends an ICMP Parameter Problem =
Message. What is the source address in that message?

Is it the destination address of the offending packet (i.e., A SID)? Or is =
in the address of an interface on the SRv6 node?

                                                                           =
              Ron




Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Friday, January 10, 2020 11:54 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Ron,

There is no behavior in draft-ietf-spring-srv6-network-programming that pro=
poses to encode a SID in the source address of the IPv6 header.

If in the future someone would propose to do such thing in another I-D; it =
is up to those authors to justify why they would want to do this, and how t=
o ensure that the processing does not break any other protocol. But as said=
, this is not in the scope of draft-ietf-spring-srv6-network-programming.

Regarding the ICMP messages:
SRH follows RFC4443 Section 2.2 with respect to how to select the ICMP Sour=
ce Address.
SRv6 Network Programming does not change this (it simply follows the SRv6 r=
ules defined by the SRH).

In your email you refer to a possibility of future protocols breaking this.=
 I don't think that we can guess what future protocols will do, and it is u=
p to those future protocols to ensure compatibility with the existing stand=
ards.

Thanks,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Tuesday, 7 January 2020 at 19:07
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: RE: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Pablo,

Let me try to ask the question another way:


1)      Is it generally acceptable for a SID to appear in the source addres=
s field of an IPv6 header?

2)      Can an exception be made for ICMP messages?

I think that the answer to the first question is "no", because doing so wou=
ld break ICMP. Think about what would happen if:


-          Node S sends a packet to Node D with a SID S as its source addre=
ss.

-          Node Q is an intermediate node on the path from Node S to Node D=
. For some reason, Node Q cannot forward the packet.

-          Node Q sends an ICMP message to Node S. The ICMP destination add=
ress is SID S.

-          The ICMP message arrives at Node A

-          Node A discards the ICMP message, because the payload is ICMP

It might be OK to make an exception for ICMP messages. This is because RFC =
4443 forbids sending an ICMP message in response to another ICMP message. H=
owever, I am not entirely sure that this is a good idea. One day in the fut=
ure, some protocol other than ICMP may try send a response to the source ad=
dress of the ICMP message.

                                                                           =
          Ron




Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Tuesday, January 7, 2020 4:18 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Ron,

It's good to see agreement on the fact that SRH follows RFC4443 Section 2.2=
 with respect to how the ICMP Source Address is selected.

Can you please point me to the text in draft-ietf-spring-srv6-network-progr=
amming that changes the behavior below from RFC4443 Section 2.2? I believe =
there is no such text.

Thanks,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Saturday, 21 December 2019 at 20:59
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Cc: "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sprin=
g@ietf.org>>
Subject: RE: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Pablo,

Section 2.2 of RFC 4443 offers the following options:

"   (a) If the message is a response to a message sent to one of the
       node's unicast addresses, the Source Address of the reply MUST be
       that same address.

   (b) If the message is a response to a message sent to any other
       address, such as

       - a multicast group address,
       - an anycast address implemented by the node, or
       - a unicast address that does not belong to the node

      the Source Address of the ICMPv6 packet MUST be a unicast address
      belonging to the node. "

So, the question boils down to whether you consider a SID to be one of the =
node's unicast addresses. If so, the answer is a). If not, the answer is b)=
.

So, which is it?

                                                    Happy Holidays,
                                                         Ron





Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Friday, December 20, 2019 12:30 PM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Ron,

I guess that draft-ietf-6man-segment-routing-header does not contain any ex=
plicit text about it because it is not needed.
Instead draft-ietf-6man-segment-routing-header contains a reference to RFC4=
443 that details in section 2.2 how to select it.

There is no text in draft-ietf-spring-srv6-network-programming that changes=
 such behavior.

Happy Holidays,
Pablo.

From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> on b=
ehalf of Ron Bonica <rbonica=3D40juniper.net@dmarc.ietf.org<mailto:rbonica=
=3D40juniper.net@dmarc.ietf.org>>
Date: Thursday, 19 December 2019 at 14:59
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>, "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sp=
ring@ietf.org>>
Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Pablo,

Can you provide a specific reference into draft-ietf-6man-segment-routing-h=
eader? I can't find the answer to my question in there.

                                                                           =
              Ron





Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Thursday, December 19, 2019 6:47 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>; spring@ie=
tf.org<mailto:spring@ietf.org>
Subject: Re: SRv6 Network Programming - ICMP Source Address Selection

Ron,

This is exactly the same as in the SRH.
There is no text in draft-ietf-spring-srv6-network-programming that changes=
 this.

Cheers,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Monday, 9 December 2019 at 23:48
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>, SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>, 6man <6man@ietf=
.org<mailto:6man@ietf.org>>
Subject: RE: SRv6 Network Programming - ICMP Source Address Selection

Pablo,

Section 2.2 of RFC 4443 offers two options. If you think that a SID is a un=
icast address, the first option is applicable. If you think that a SID is n=
ot a unicast address, the second option is applicable.

Which did you choose?

                                                                         Ro=
n



Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Monday, December 9, 2019 10:18 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>; SPRING WG=
 <spring@ietf.org<mailto:spring@ietf.org>>; 6man <6man@ietf.org<mailto:6man=
@ietf.org>>
Subject: Re: SRv6 Network Programming - ICMP Source Address Selection

Ron,

As you pointed out in your email, RFC4443 Section 2.2 is very clear about h=
ow to select the source address.
draft-ietf-spring-srv6-network-programming does not change this.

Thanks,
Pablo.

From: ipv6 <ipv6-bounces@ietf.org<mailto:ipv6-bounces@ietf.org>> on behalf =
of Ron Bonica <rbonica=3D40juniper.net@dmarc.ietf.org<mailto:rbonica=3D40ju=
niper.net@dmarc.ietf.org>>
Date: Friday, 6 December 2019 at 17:40
To: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>, 6man <6man@ietf.or=
g<mailto:6man@ietf.org>>
Subject: SRv6 Network Programming - ICMP Source Address Selection

Authors,

When an SRv6 node sends an ICMP message, how does it select the ICMP messag=
e's source address?

Section 2.2 of RFC 4443 offers two options. If you think that a SID is a un=
icast address, the first option is applicable. If you think that a SID is n=
ot a unicast address, the second option is applicable.

                                                                     Ron


Juniper Business Use Only

Please excuse any typos, sent from my 'smart'phone.

Please excuse any typos, sent from my 'smart'phone.

Please excuse any typos, sent from my 'smart'phone.

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<div class=3D"WordSection1">
<p class=3D"MsoNormal">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">The problem isn&#8217;t a statement in the network p=
rogramming draft. It is an omission in the network programming draft.
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">If the network programming draft unequivocally state=
d that a SID is a unicast address of the instantiating node, the following =
text from RFC 4443 would apply:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoListParagraph">&#8220;If the message is a response to a mess=
age sent to one of the node's unicast addresses, the Source Address of the =
reply MUST be&nbsp; that same address.&#8221;<o:p></o:p></p>
<p class=3D"MsoListParagraph"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">If the network programming draft unequivocally state=
d that a SID is a not unicast address of the instantiating node, the follow=
ing text from RFC 4443 would apply:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoListParagraph">If the message is a response to a message sen=
t to any other address, the Source Address of the ICMPv6 packet MUST be a u=
nicast address belonging to the node.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
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sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ron<o:p><=
/o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0in;margin=
-bottom:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b>From:</b> Pablo Camarillo (pcamaril) &lt;pcamaril=
@cisco.com&gt;
<br>
<b>Sent:</b> Monday, January 13, 2020 12:31 PM<br>
<b>To:</b> Ron Bonica &lt;rbonica@juniper.net&gt;<br>
<b>Cc:</b> spring@ietf.org<br>
<b>Subject:</b> Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Ron,</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">You cannot pre-select or enforc=
e one of the two options you refer to below.</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">The ICMP behaviors/consideratio=
ns for SRv6 NET-PGM are the same as in the SRH.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">It boils down to:&nbsp;</span>w=
hen you generate an ICMP Parameter Problem Message you follow the logic des=
cribed in RFC4443 section 2.2 to choose the source address of the packet.
<o:p></o:p></p>
<p class=3D"MsoNormal">RFC4443 offers two options A and B.&nbsp;<o:p></o:p>=
</p>
<p class=3D"MsoNormal">In your implementation you need to develop both opti=
ons and depending on the type of address you will choose either A or B. It =
is not possible to create an implementation shortcut and pre-select/enforce=
 only one of them.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Can you please point me to the =
text in draft-ietf-spring-srv6-network-programming that suggests that the I=
CMP considerations are changed with respect to the SRH? I believe there is =
none.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Thank you,</span><o:p></o:p></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Pablo.</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">&nbsp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><span style=3D"font-si=
ze:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">Ron Bonica &lt;<a h=
ref=3D"mailto:rbonica@juniper.net">rbonica@juniper.net</a>&gt;<br>
<b>Date: </b>Friday, 10 January 2020 at 20:09<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;<a href=3D"mailto:pca=
maril@cisco.com">pcamaril@cisco.com</a>&gt;<br>
<b>Cc: </b>&quot;<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&quo=
t; &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&gt;<br>
<b>Subject: </b>RE: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">So, in Section 4.1, Line =
S03, an SRv6 node sends an ICMP Parameter Problem Message. What is the sour=
ce address in that message?<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Is it the destination add=
ress of the offending packet (i.e., A SID)? Or is in the address of an inte=
rface on the SRv6 node?<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.=
0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b>From:</b> Pablo Camari=
llo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco.com">pcamaril@cisco.com=
</a>&gt;
<br>
<b>Sent:</b> Friday, January 10, 2020 11:54 AM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;<br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><br>
<b>Subject:</b> Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">Ron,=
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">&nbs=
p;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">Ther=
e is no behavior in draft-ietf-spring-srv6-network-programming that propose=
s to encode a SID in the source address of the IPv6 header.</span><o:p></o:=
p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">&nbs=
p;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">If i=
n the future someone would propose to do such thing in another I-D; it is u=
p to those authors to justify why they would want to do this, and how to en=
sure that the processing does not break
 any other protocol. But as said, this is not in the scope of draft-ietf-sp=
ring-srv6-network-programming.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">&nbs=
p;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">Rega=
rding the ICMP messages:
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">SRH =
follows RFC4443 Section 2.2 with respect to how to select the ICMP Source A=
ddress.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">SRv6=
 Network Programming does not change this (it simply follows the SRv6 rules=
 defined by the SRH).</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">&nbs=
p;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">In y=
our email you refer to a possibility of future protocols breaking this. I d=
on&#8217;t think that we can guess what future protocols will do, and it is=
 up to those future protocols to ensure compatibility
 with the existing standards.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">&nbs=
p;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">Than=
ks,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">Pabl=
o.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">&nbs=
p;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b><span style=3D"font-s=
ize:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">Ron Bonica &lt;</sp=
an><span lang=3D"ES"><a href=3D"mailto:rbonica@juniper.net"><span lang=3D"E=
N-US" style=3D"font-size:12.0pt">rbonica@juniper.net</span></a></span><span=
 style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Tuesday, 7 January 2020 at 19:07<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><span lang=3D"=
ES"><a href=3D"mailto:pcamaril@cisco.com"><span lang=3D"EN-US" style=3D"fon=
t-size:12.0pt">pcamaril@cisco.com</span></a></span><span style=3D"font-size=
:12.0pt;color:black">&gt;<br>
<b>Cc: </b>SPRING WG &lt;</span><span lang=3D"ES"><a href=3D"mailto:spring@=
ietf.org"><span lang=3D"EN-US" style=3D"font-size:12.0pt">spring@ietf.org</=
span></a></span><span style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Subject: </b>RE: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Let me try to ask the qu=
estion another way:<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:1.5in;text-indent:-.25in=
">1)<span style=3D"font-size:7.0pt;font-family:&quot;Times New Roman&quot;,=
serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>Is it generally acceptable for a SID to appear in the source address=
 field of an IPv6 header?<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:1.5in;text-indent:-.25in=
">2)<span style=3D"font-size:7.0pt;font-family:&quot;Times New Roman&quot;,=
serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>Can an exception be made for ICMP messages?<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">I think that the answer =
to the first question is &#8220;no&#8221;, because doing so would break ICM=
P. Think about what would happen if:<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:1.5in;text-indent:-.25in=
">-<span style=3D"font-size:7.0pt;font-family:&quot;Times New Roman&quot;,s=
erif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>Node S sends a packet to Node D with a SID S as its source address.<=
o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:1.5in;text-indent:-.25in=
">-<span style=3D"font-size:7.0pt;font-family:&quot;Times New Roman&quot;,s=
erif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>Node Q is an intermediate node on the path from Node S to Node D. Fo=
r some reason, Node Q cannot forward the packet.<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:1.5in;text-indent:-.25in=
">-<span style=3D"font-size:7.0pt;font-family:&quot;Times New Roman&quot;,s=
erif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>Node Q sends an ICMP message to Node S. The ICMP destination address=
 is SID S.<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:1.5in;text-indent:-.25in=
">-<span style=3D"font-size:7.0pt;font-family:&quot;Times New Roman&quot;,s=
erif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>The ICMP message arrives at Node A<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:1.5in;text-indent:-.25in=
">-<span style=3D"font-size:7.0pt;font-family:&quot;Times New Roman&quot;,s=
erif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>Node A discards the ICMP message, because the payload is ICMP<o:p></=
o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">It might be OK to make a=
n exception for ICMP messages. This is because RFC 4443 forbids sending an =
ICMP message in response to another ICMP message. However, I am not entirel=
y sure that this is a good idea. One
 day in the future, some protocol other than ICMP may try send a response t=
o the source address of the ICMP message.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
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sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:1.0in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b>From:</b> Pablo Camar=
illo (pcamaril) &lt;<span lang=3D"ES"><a href=3D"mailto:pcamaril@cisco.com"=
><span lang=3D"EN-US">pcamaril@cisco.com</span></a></span>&gt;
<br>
<b>Sent:</b> Tuesday, January 7, 2020 4:18 AM<br>
<b>To:</b> Ron Bonica &lt;<span lang=3D"ES"><a href=3D"mailto:rbonica@junip=
er.net"><span lang=3D"EN-US">rbonica@juniper.net</span></a></span>&gt;<br>
<b>Cc:</b> SPRING WG &lt;<span lang=3D"ES"><a href=3D"mailto:spring@ietf.or=
g"><span lang=3D"EN-US">spring@ietf.org</span></a></span>&gt;<br>
<b>Subject:</b> Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">Ron=
, </span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">It&=
#8217;s good to see agreement on the fact that SRH follows RFC4443 Section =
2.2 with respect to how the ICMP Source Address is selected.</span><o:p></o=
:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">Can=
 you please point me to the text in draft-ietf-spring-srv6-network-programm=
ing that changes the behavior below from RFC4443 Section 2.2? I believe the=
re is no such text.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">Tha=
nks,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">Pab=
lo.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><b><span style=3D"font-s=
ize:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">Ron Bonica &lt;</sp=
an><span lang=3D"ES"><a href=3D"mailto:rbonica@juniper.net"><span lang=3D"E=
N-US" style=3D"font-size:12.0pt">rbonica@juniper.net</span></a></span><span=
 style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Saturday, 21 December 2019 at 20:59<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><span lang=3D"=
ES"><a href=3D"mailto:pcamaril@cisco.com"><span lang=3D"EN-US" style=3D"fon=
t-size:12.0pt">pcamaril@cisco.com</span></a></span><span style=3D"font-size=
:12.0pt;color:black">&gt;<br>
<b>Cc: </b>&quot;</span><span lang=3D"ES"><a href=3D"mailto:spring@ietf.org=
"><span lang=3D"EN-US" style=3D"font-size:12.0pt">spring@ietf.org</span></a=
></span><span style=3D"font-size:12.0pt;color:black">&quot; &lt;</span><spa=
n lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><span lang=3D"EN-US" style=
=3D"font-size:12.0pt">spring@ietf.org</span></a></span><span style=3D"font-=
size:12.0pt;color:black">&gt;<br>
<b>Subject: </b>RE: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">Section 2.2 of RFC 4443 =
offers the following options:<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&#8220;&nbsp;&nbsp; (a) =
If the message is a response to a message sent to one of the<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; node's unicast addresses, the Source Address of the reply MUST=
 be<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; that same address.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;&nbsp; (b) If the =
message is a response to a message sent to any other<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; address, such as<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; - a multicast group address,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; - an anycast address implemented by the node, or<o:p></o:p></p=
>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; - a unicast address that does not belong to the node<o:p></o:p=
></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp; the Source Address of the ICMPv6 packet MUST be a unicast address<o:=
p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp; belonging to the node. &#8220;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">So, the question boils d=
own to whether you consider a SID to be one of the node&#8217;s unicast add=
resses. If so, the answer is a). If not, the answer is b).<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">So, which is it?<o:p></o=
:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Happy Holidays,<o=
:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:1.5in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><b>From:</b> Pablo Camar=
illo (pcamaril) &lt;<span lang=3D"ES"><a href=3D"mailto:pcamaril@cisco.com"=
><span lang=3D"EN-US">pcamaril@cisco.com</span></a></span>&gt;
<br>
<b>Sent:</b> Friday, December 20, 2019 12:30 PM<br>
<b>To:</b> Ron Bonica &lt;<span lang=3D"ES"><a href=3D"mailto:rbonica@junip=
er.net"><span lang=3D"EN-US">rbonica@juniper.net</span></a></span>&gt;<br>
<b>Cc:</b> <span lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><span lang=
=3D"EN-US">spring@ietf.org</span></a></span><br>
<b>Subject:</b> Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">Ron=
,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">I g=
uess that draft-ietf-6man-segment-routing-header does not contain any expli=
cit text about it because it is not needed.
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">Ins=
tead draft-ietf-6man-segment-routing-header contains a reference to RFC4443=
 that details in section 2.2 how to select it.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">There is no text in draf=
t-ietf-spring-srv6-network-programming that changes such behavior.<o:p></o:=
p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">Happy Holidays,<o:p></o:=
p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">Pablo.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"font-s=
ize:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">spring &lt;</span><=
span lang=3D"ES"><a href=3D"mailto:spring-bounces@ietf.org"><span lang=3D"E=
N-US" style=3D"font-size:12.0pt">spring-bounces@ietf.org</span></a></span><=
span style=3D"font-size:12.0pt;color:black">&gt; on
 behalf of Ron Bonica &lt;</span><span lang=3D"ES"><a href=3D"mailto:rbonic=
a=3D40juniper.net@dmarc.ietf.org"><span lang=3D"EN-US" style=3D"font-size:1=
2.0pt">rbonica=3D40juniper.net@dmarc.ietf.org</span></a></span><span style=
=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Thursday, 19 December 2019 at 14:59<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><span lang=3D"=
ES"><a href=3D"mailto:pcamaril@cisco.com"><span lang=3D"EN-US" style=3D"fon=
t-size:12.0pt">pcamaril@cisco.com</span></a></span><span style=3D"font-size=
:12.0pt;color:black">&gt;, &quot;</span><span lang=3D"ES"><a href=3D"mailto=
:spring@ietf.org"><span lang=3D"EN-US" style=3D"font-size:12.0pt">spring@ie=
tf.org</span></a></span><span style=3D"font-size:12.0pt;color:black">&quot;
 &lt;</span><span lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><span lang=
=3D"EN-US" style=3D"font-size:12.0pt">spring@ietf.org</span></a></span><spa=
n style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Subject: </b>Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Can you provide a specif=
ic reference into draft-ietf-6man-segment-routing-header? I can&#8217;t fin=
d the answer to my question in there.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:2.0in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b>From:</b> Pablo Camar=
illo (pcamaril) &lt;<span lang=3D"ES"><a href=3D"mailto:pcamaril@cisco.com"=
><span lang=3D"EN-US">pcamaril@cisco.com</span></a></span>&gt;
<br>
<b>Sent:</b> Thursday, December 19, 2019 6:47 AM<br>
<b>To:</b> Ron Bonica &lt;<span lang=3D"ES"><a href=3D"mailto:rbonica@junip=
er.net"><span lang=3D"EN-US">rbonica@juniper.net</span></a></span>&gt;;
<span lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><span lang=3D"EN-US">s=
pring@ietf.org</span></a></span><br>
<b>Subject:</b> Re: SRv6 Network Programming - ICMP Source Address Selectio=
n<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Ron=
,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Thi=
s is exactly the same as in the SRH.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">The=
re is no text in draft-ietf-spring-srv6-network-programming that changes th=
is.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Che=
ers,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Pab=
lo.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"font-s=
ize:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">Ron Bonica &lt;</sp=
an><span lang=3D"ES"><a href=3D"mailto:rbonica@juniper.net"><span lang=3D"E=
N-US" style=3D"font-size:12.0pt">rbonica@juniper.net</span></a></span><span=
 style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Monday, 9 December 2019 at 23:48<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><span lang=3D"=
ES"><a href=3D"mailto:pcamaril@cisco.com"><span lang=3D"EN-US" style=3D"fon=
t-size:12.0pt">pcamaril@cisco.com</span></a></span><span style=3D"font-size=
:12.0pt;color:black">&gt;, SPRING WG &lt;</span><span lang=3D"ES"><a href=
=3D"mailto:spring@ietf.org"><span lang=3D"EN-US" style=3D"font-size:12.0pt"=
>spring@ietf.org</span></a></span><span style=3D"font-size:12.0pt;color:bla=
ck">&gt;,
 6man &lt;</span><span lang=3D"ES"><a href=3D"mailto:6man@ietf.org"><span l=
ang=3D"EN-US" style=3D"font-size:12.0pt">6man@ietf.org</span></a></span><sp=
an style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Subject: </b>RE: SRv6 Network Programming - ICMP Source Address Selectio=
n</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Section 2.2 of RFC 4443 =
offers two options. If you think that a SID is a unicast address, the first=
 option is applicable. If you think that a SID is not a unicast address, th=
e second option is applicable.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Which did you choose?<o:=
p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:2.0in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b>From:</b> Pablo Camar=
illo (pcamaril) &lt;<span lang=3D"ES"><a href=3D"mailto:pcamaril@cisco.com"=
><span lang=3D"EN-US">pcamaril@cisco.com</span></a></span>&gt;
<br>
<b>Sent:</b> Monday, December 9, 2019 10:18 AM<br>
<b>To:</b> Ron Bonica &lt;<span lang=3D"ES"><a href=3D"mailto:rbonica@junip=
er.net"><span lang=3D"EN-US">rbonica@juniper.net</span></a></span>&gt;; SPR=
ING WG &lt;<span lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><span lang=
=3D"EN-US">spring@ietf.org</span></a></span>&gt;; 6man &lt;<span lang=3D"ES=
"><a href=3D"mailto:6man@ietf.org"><span lang=3D"EN-US">6man@ietf.org</span=
></a></span>&gt;<br>
<b>Subject:</b> Re: SRv6 Network Programming - ICMP Source Address Selectio=
n<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Ron=
,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">As =
you pointed out in your email, RFC4443 Section 2.2 is very clear about how =
to select the source address.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">dra=
ft-ietf-spring-srv6-network-programming does not change this.
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Tha=
nks,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Pab=
lo.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"font-s=
ize:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">ipv6 &lt;</span><sp=
an lang=3D"ES"><a href=3D"mailto:ipv6-bounces@ietf.org"><span lang=3D"EN-US=
" style=3D"font-size:12.0pt">ipv6-bounces@ietf.org</span></a></span><span s=
tyle=3D"font-size:12.0pt;color:black">&gt; on behalf
 of Ron Bonica &lt;</span><span lang=3D"ES"><a href=3D"mailto:rbonica=3D40j=
uniper.net@dmarc.ietf.org"><span lang=3D"EN-US" style=3D"font-size:12.0pt">=
rbonica=3D40juniper.net@dmarc.ietf.org</span></a></span><span style=3D"font=
-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Friday, 6 December 2019 at 17:40<br>
<b>To: </b>SPRING WG &lt;</span><span lang=3D"ES"><a href=3D"mailto:spring@=
ietf.org"><span lang=3D"EN-US" style=3D"font-size:12.0pt">spring@ietf.org</=
span></a></span><span style=3D"font-size:12.0pt;color:black">&gt;, 6man &lt=
;</span><span lang=3D"ES"><a href=3D"mailto:6man@ietf.org"><span lang=3D"EN=
-US" style=3D"font-size:12.0pt">6man@ietf.org</span></a></span><span style=
=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Subject: </b>SRv6 Network Programming - ICMP Source Address Selection</s=
pan><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Authors,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">When an SRv6 node sends =
an ICMP message, how does it select the ICMP message&#8217;s source address=
?<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Section 2.2 of RFC 4443 =
offers two options. If you think that a SID is a unicast address, the first=
 option is applicable. If you think that a SID is not a unicast address, th=
e second option is applicable.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:2.0in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Please excuse any typos, =
sent from my 'smart'phone.<o:p></o:p></p>
<div>
<p class=3D"MsoNormal">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal">Please excuse any typos, sent from my 'smart'phone.<=
o:p></o:p></p>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<p class=3D"MsoNormal">Please excuse any typos, sent from my 'smart'phone.<=
o:p></o:p></p>
</div>
</body>
</html>

--_000_BN7PR05MB39381FB65ED5B034D21267F0AE350BN7PR05MB3938namp_--


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From: Ron Bonica <rbonica@juniper.net>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>
CC: "spring@ietf.org" <spring@ietf.org>, "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
Thread-Topic: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/-fH1NIAkspsfEQiY2lAppJRMRv0>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6
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Hello Bruno.

According to the network programming draft, "Network programming combines s=
egment routing functions, both simple and complex, to achieve a networking =
objective that goes beyond mere packet routing."

Sadly, the document offers little insight as to what those non-routing obje=
ctives might be.

If SRv6 offers something beyond the mere packet routing capabilities of SR-=
MPLS, the network programming draft would be the most appropriate place to =
mention it. Otherwise, SRv6 is just an IPv6 version of SR-MPLS.

                                                                   Ron




Juniper Business Use Only
From: bruno.decraene@orange.com <bruno.decraene@orange.com>
Sent: Monday, January 13, 2020 8:12 AM
To: Ron Bonica <rbonica@juniper.net>
Cc: spring@ietf.org; Pablo Camarillo (pcamaril) <pcamaril@cisco.com>
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,


From: spring [mailto:spring-bounces@ietf.org] On Behalf Of Ron Bonica
Sent: Friday, January 10, 2020 8:14 PM
To: Pablo Camarillo (pcamaril)
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Chairs,

I believe that we have two independent requests for a comparison of the ben=
efits of SRv6 over SR-MPLS in the network programming draft.

A comparison of the benefits of SRv6 over SR-MPLS is one thing that could p=
ossibly be discussed if there is interest from the WG.
E.g. to help network provider make a choice, or in the context of "beyond S=
Rv6" to help the WG identify the benefit/cost analysis of existing solution=
s and what we want to achieve with new/extensions to SR data planes.

But why do you think that this would belong to draft-ietf-spring-srv6-netwo=
rk-programming?

Thanks,
--Bruno


                                                            Ron




Juniper Business Use Only
From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> On B=
ehalf Of Pablo Camarillo (pcamaril)
Sent: Friday, January 10, 2020 11:55 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,

If you want to discuss your analysis please let's do so in a separate email=
 thread out of the context of the Working Group Last Call of draft-ietf-spr=
ing-srv6-network-programming.

As I said before: draft-ietf-spring-srv6-network-programming is a Standards=
 Track document and this topic is not about any standardization, hence out =
of scope of this document.

Same applies to other content (e.g. illustrations) that was formerly in net=
work programming and we moved to a separate draft since it was not standard=
izing anything at all and was merely informative.

Thanks,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Tuesday, 7 January 2020 at 19:17
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Pablo,

RFC 8354 reinforces my analysis in https://mailarchive.ietf.org/arch/msg/sp=
ring/3WGuQumIfcmH281nwq3s9Un6raI<https://urldefense.com/v3/__https:/mailarc=
hive.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6raI__;!!NEt6yMaO-gk!S=
olNvh35q4NS-PTVWOxXAzbTnMHltfvPWi_OSjhMYkmm_NucR6imYrrLvc35Kat6$>. Are you =
saying that you agree with this analysis?

                                             Ron






Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Tuesday, January 7, 2020 4:17 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,

SPRING has already done this work and documented the SRv6 use-cases in RFC8=
354 before progressing with the SRv6 standardization.

Further on, draft-ietf-spring-srv6-network-programming is a Standards Track=
 document.
I fail to see how a cite from RFC8354 or any other text on "SRv6 vs SR-MPLS=
" standardises anything at all.
Note that we have already removed text from draft-ietf-spring-srv6-network-=
programming (e.g. illustrations) because it was not standardising anything.

Thank you for the suggestion,
Pablo.

From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> on b=
ehalf of Ron Bonica <rbonica=3D40juniper.net@dmarc.ietf.org<mailto:rbonica=
=3D40juniper.net@dmarc.ietf.org>>
Date: Monday, 30 December 2019 at 11:08
To: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: [spring] draft-ietf-spring-srv6-network-programming: Relative adva=
ntages of SRv6

Pablo,

Would you consider adding a short section to the draft explaining the relat=
ive advantages of SRv6 over SR-MPLS? This section would explain why an netw=
ork operator would deploy SRv6 instead of SR-MPLS.

                                                                           =
              Ron



Juniper Business Use Only

Please excuse any typos, sent from my 'smart'phone.

___________________________________________________________________________=
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<body lang=3D"EN-US" link=3D"#0563C1" vlink=3D"#954F72">
<div class=3D"WordSection1">
<p class=3D"MsoNormal">Hello Bruno.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">According to the network programming draft, &#8220;N=
etwork programming combines segment routing functions, both simple and comp=
lex, to achieve a networking objective that goes beyond mere packet routing=
.&#8221;<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Sadly, the document offers little insight as to what=
 those non-routing objectives might be.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">If SRv6 offers something beyond the mere packet rout=
ing capabilities of SR-MPLS, the network programming draft would be the mos=
t appropriate place to mention it. Otherwise, SRv6 is just an IPv6 version =
of SR-MPLS.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0in;margin=
-bottom:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b>From:</b> bruno.decraene@orange.com &lt;bruno.dec=
raene@orange.com&gt;
<br>
<b>Sent:</b> Monday, January 13, 2020 8:12 AM<br>
<b>To:</b> Ron Bonica &lt;rbonica@juniper.net&gt;<br>
<b>Cc:</b> spring@ietf.org; Pablo Camarillo (pcamaril) &lt;pcamaril@cisco.c=
om&gt;<br>
<b>Subject:</b> RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span lang=3D"FR" style=3D"color:#1F497D">Ron,<o:p><=
/o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"FR" style=3D"color:#1F497D"><o:p>&nbsp=
;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><b><span style=3D"font-=
size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">From:</span></b><spa=
n style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif"> spr=
ing [<a href=3D"mailto:spring-bounces@ietf.org">mailto:spring-bounces@ietf.=
org</a>]
<b>On Behalf Of </b>Ron Bonica<br>
<b>Sent:</b> Friday, January 10, 2020 8:14 PM<br>
<b>To:</b> Pablo Camarillo (pcamaril)<br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt">Chairs,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt">I believe that we have =
two independent requests for a comparison of the benefits of SRv6 over SR-M=
PLS in the network programming draft.<o:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">A comparison of the be=
nefits of SRv6 over SR-MPLS is one thing that could possibly be discussed i=
f there is interest from the WG.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">E.g. to help network p=
rovider make a choice, or in the context of &#8220;beyond SRv6&#8221; to he=
lp the WG identify the benefit/cost analysis of existing solutions and what=
 we want to achieve with new/extensions to SR data
 planes. <o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">But why do you think t=
hat this would belong to draft-ietf-spring-srv6-network-programming?
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Thanks,<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">--Bruno<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt">&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><o:p>&nbsp;</o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:0in;margin-right:0in;margin-bottom:0in;margin-left:35.4pt;margin-bottom:.=
0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><b>From:</b> spring &lt=
;<a href=3D"mailto:spring-bounces@ietf.org">spring-bounces@ietf.org</a>&gt;
<b>On Behalf Of </b>Pablo Camarillo (pcamaril)<br>
<b>Sent:</b> Friday, January 10, 2020 11:55 AM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;<br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB">Ro=
n, </span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt">If you want to discuss =
your analysis please let&#8217;s do so in a separate email thread out of th=
e context of the Working Group Last Call of draft-ietf-spring-srv6-network-=
programming.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt">As I said before: <span=
 lang=3D"EN-GB">
draft-ietf-spring-srv6-network-programming is a Standards Track document an=
d this topic is not about any standardization, hence out of scope of this d=
ocument.
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB"><o=
:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB">Sa=
me applies to other content (e.g. illustrations) that was formerly in netwo=
rk programming and we moved to a separate draft since it was not standardiz=
ing anything at all and was merely informative.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB">&n=
bsp;&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB">Th=
anks,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB">Pa=
blo.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB" st=
yle=3D"font-size:24.0pt">&nbsp;</span><span style=3D"font-size:24.0pt"><o:p=
></o:p></span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><b><span style=3D"font-=
size:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">Ron Bonica &lt;<a h=
ref=3D"mailto:rbonica@juniper.net">rbonica@juniper.net</a>&gt;<br>
<b>Date: </b>Tuesday, 7 January 2020 at 19:17<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;<a href=3D"mailto:pca=
maril@cisco.com">pcamaril@cisco.com</a>&gt;<br>
<b>Cc: </b>SPRING WG &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org=
</a>&gt;<br>
<b>Subject: </b>RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt">RFC 8354 reinforces my =
analysis in
<span lang=3D"ES"><a href=3D"https://urldefense.com/v3/__https:/mailarchive=
.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6raI__;!!NEt6yMaO-gk!SolNv=
h35q4NS-PTVWOxXAzbTnMHltfvPWi_OSjhMYkmm_NucR6imYrrLvc35Kat6$"><span lang=3D=
"EN-US">https://mailarchive.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9U=
n6raI</span></a></span>.
 Are you saying that you agree with this analysis?<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt">&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:71.4pt;margin-bottom=
:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><b>From:</b> Pablo Cama=
rillo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco.com">pcamaril@cisco.c=
om</a>&gt;
<br>
<b>Sent:</b> Tuesday, January 7, 2020 4:17 AM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;<br>
<b>Cc:</b> SPRING WG &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org=
</a>&gt;<br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB">Ro=
n,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB">&n=
bsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB">SP=
RING has already done this work and documented the SRv6 use-cases in RFC835=
4 before progressing with the SRv6 standardization.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB">&n=
bsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB">Fu=
rther on, draft-ietf-spring-srv6-network-programming is a Standards Track d=
ocument.
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB">I =
fail to see how a cite from RFC8354 or any other text on &#8220;SRv6 vs SR-=
MPLS&#8221; standardises anything at all.
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB">No=
te that we have already removed text from draft-ietf-spring-srv6-network-pr=
ogramming (e.g. illustrations) because it was not standardising anything.</=
span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB">&n=
bsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB">Th=
ank you for the suggestion,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB">Pa=
blo.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB">&n=
bsp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><b><span style=3D"font=
-size:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">spring &lt;</span><=
span lang=3D"ES"><a href=3D"mailto:spring-bounces@ietf.org"><span lang=3D"E=
N-US" style=3D"font-size:12.0pt">spring-bounces@ietf.org</span></a></span><=
span style=3D"font-size:12.0pt;color:black">&gt; on
 behalf of Ron Bonica &lt;</span><span lang=3D"ES"><a href=3D"mailto:rbonic=
a=3D40juniper.net@dmarc.ietf.org"><span lang=3D"EN-US" style=3D"font-size:1=
2.0pt">rbonica=3D40juniper.net@dmarc.ietf.org</span></a></span><span style=
=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Monday, 30 December 2019 at 11:08<br>
<b>To: </b>SPRING WG &lt;</span><span lang=3D"ES"><a href=3D"mailto:spring@=
ietf.org"><span lang=3D"EN-US" style=3D"font-size:12.0pt">spring@ietf.org</=
span></a></span><span style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Subject: </b>[spring] draft-ietf-spring-srv6-network-programming: Relati=
ve advantages of SRv6</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt">Would you consider add=
ing a short section to the draft explaining the relative advantages of SRv6=
 over SR-MPLS? This section would explain why an network operator would dep=
loy SRv6 instead of SR-MPLS.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt">&nbsp;&nbsp; &nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:107.4pt;margin-botto=
m:.0001pt;text-align:center;margin-bottom:..0001pt">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div id=3D"ms-outlook-mobile-signature">
<div>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><o:p>&nbsp;</o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt">Please excuse any typos=
, sent from my 'smart'phone.<o:p></o:p></p>
</div>
<pre><span lang=3D"FR">____________________________________________________=
_____________________________________________________________________<o:p><=
/o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">Ce message et ses pieces jointes peuvent contenir de=
s informations confidentielles ou privilegiees et ne doivent donc<o:p></o:p=
></span></pre>
<pre><span lang=3D"FR">pas etre diffuses, exploites ou copies sans autorisa=
tion. Si vous avez recu ce message par erreur, veuillez le signaler<o:p></o=
:p></span></pre>
<pre><span lang=3D"FR">a l'expediteur et le detruire ainsi que les pieces j=
ointes. Les messages electroniques etant susceptibles d'alteration,<o:p></o=
:p></span></pre>
<pre><span lang=3D"FR">Orange decline toute responsabilite si ce message a =
ete altere, deforme ou falsifie. Merci.<o:p></o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">This message and its attachments may contain confide=
ntial or privileged information that may be protected by law;<o:p></o:p></s=
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<pre><span lang=3D"FR">they should not be distributed, used or copied witho=
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n></pre>
<pre><span lang=3D"FR">As emails may be altered, Orange is not liable for m=
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From: Mark Smith <markzzzsmith@gmail.com>
Date: Tue, 14 Jan 2020 08:43:58 +1100
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To: "Joel M. Halpern" <jmh@joelhalpern.com>
Cc: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>, Ron Bonica <rbonica@juniper.net>, "spring@ietf.org" <spring@ietf.org>
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Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Selection
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On Tue, 14 Jan 2020, 05:29 Joel M. Halpern, <jmh@joelhalpern.com> wrote:

> Let me try asking the question a different way.  (I hope I understand
> Ron;s question.)
>
> RFC 4443 clearly allows the ICMP source to be the destination address of
> the offending packet.  You seem to be saying that sometimes that is okay
> for SRH  / network programming.
>
> At the same time, the SRH document and the network programming document
> are both quite clear that SRv6 SIDs are not IPv6 addresses.  They are
> other kinds of things that can be prefix routed.
> If SRv6 SIDs are NOT IPv6 addresses, then there would seem to be a
> problem with putting them in the source address field of an ICMP
> message.


I'd say if SRv6 SIDs are stated not to be IPv6 addresses, then I think
there is a problem with using their values anywhere with and in the IPv6
protocol, including packets' DA fields, unless there is a translation
function between SRv6 SIDs and IPv6 addresses.

The translation function might be nothing more than a simple copy of the
128 bit SID value into the place where it will be used in IPv6, and I
understand this would be the motivation for having 128 bit SIDs in SRv6 and
20 bit SIDs in SR-MPLS.

However that then means SID values always have to comply with IPv6 address
requirements and formats, regardless of SR context. Otherwise, the
translation function needs to be a transform between SRv6 SIDs and IPv6
addresses.


  There is no document that describes or allows anything other
> than an IPv6 address as the source address of an IPv6 ICMP.
>
> It seems like it ought to be possible to clarify this with some text.
> It does seem that something ought to be said.
>
> Yours,
> Joel
>
> On 1/13/2020 12:30 PM, Pablo Camarillo (pcamaril) wrote:
> > Ron,
> >
> > You cannot pre-select or enforce one of the two options you refer to
> below.
> >
> > The ICMP behaviors/considerations for SRv6 NET-PGM are the same as in
> > the SRH.
> >
> > It boils down to: when you generate an ICMP Parameter Problem Message
> > you follow the logic described in RFC4443 section 2.2 to choose the
> > source address of the packet.
> >
> > RFC4443 offers two options A and B.
> >
> > In your implementation you need to develop both options and depending o=
n
> > the type of address you will choose either A or B. It is not possible t=
o
> > create an implementation shortcut and pre-select/enforce only one of
> them.
> >
> > Can you please point me to the text in
> > draft-ietf-spring-srv6-network-programming that suggests that the ICMP
> > considerations are changed with respect to the SRH? I believe there is
> none.
> >
> > Thank you,
> >
> > Pablo.
> >
> > *From: *Ron Bonica <rbonica@juniper.net>
> > *Date: *Friday, 10 January 2020 at 20:09
> > *To: *"Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
> > *Cc: *"spring@ietf.org" <spring@ietf.org>
> > *Subject: *RE: [spring] SRv6 Network Programming - ICMP Source Address
> > Selection
> >
> > Pablo,
> >
> > So, in Section 4.1, Line S03, an SRv6 node sends an ICMP Parameter
> > Problem Message. What is the source address in that message?
> >
> > Is it the destination address of the offending packet (i.e., A SID)? Or
> > is in the address of an interface on the SRv6 node?
> >
> >
>
> Ron
> >
> > Juniper Business Use Only
> >
> > *From:*Pablo Camarillo (pcamaril) <pcamaril@cisco.com>
> > *Sent:* Friday, January 10, 2020 11:54 AM
> > *To:* Ron Bonica <rbonica@juniper.net>
> > *Cc:* spring@ietf.org
> > *Subject:* Re: [spring] SRv6 Network Programming - ICMP Source Address
> > Selection
> >
> > Ron,
> >
> > There is no behavior in draft-ietf-spring-srv6-network-programming that
> > proposes to encode a SID in the source address of the IPv6 header.
> >
> > If in the future someone would propose to do such thing in another I-D;
> > it is up to those authors to justify why they would want to do this, an=
d
> > how to ensure that the processing does not break any other protocol. Bu=
t
> > as said, this is not in the scope of
> > draft-ietf-spring-srv6-network-programming.
> >
> > Regarding the ICMP messages:
> >
> > SRH follows RFC4443 Section 2.2 with respect to how to select the ICMP
> > Source Address.
> >
> > SRv6 Network Programming does not change this (it simply follows the
> > SRv6 rules defined by the SRH).
> >
> > In your email you refer to a possibility of future protocols breaking
> > this. I don=E2=80=99t think that we can guess what future protocols wil=
l do, and
> > it is up to those future protocols to ensure compatibility with the
> > existing standards.
> >
> > Thanks,
> >
> > Pablo.
> >
> > *From: *Ron Bonica <rbonica@juniper.net <mailto:rbonica@juniper.net>>
> > *Date: *Tuesday, 7 January 2020 at 19:07
> > *To: *"Pablo Camarillo (pcamaril)" <pcamaril@cisco.com
> > <mailto:pcamaril@cisco.com>>
> > *Cc: *SPRING WG <spring@ietf.org <mailto:spring@ietf.org>>
> > *Subject: *RE: [spring] SRv6 Network Programming - ICMP Source Address
> > Selection
> >
> > Pablo,
> >
> > Let me try to ask the question another way:
> >
> > 1)Is it generally acceptable for a SID to appear in the source address
> > field of an IPv6 header?
> >
> > 2)Can an exception be made for ICMP messages?
> >
> > I think that the answer to the first question is =E2=80=9Cno=E2=80=9D, =
because doing so
> > would break ICMP. Think about what would happen if:
> >
> > -Node S sends a packet to Node D with a SID S as its source address.
> >
> > -Node Q is an intermediate node on the path from Node S to Node D. For
> > some reason, Node Q cannot forward the packet.
> >
> > -Node Q sends an ICMP message to Node S. The ICMP destination address i=
s
> > SID S.
> >
> > -The ICMP message arrives at Node A
> >
> > -Node A discards the ICMP message, because the payload is ICMP
> >
> > It might be OK to make an exception for ICMP messages. This is because
> > RFC 4443 forbids sending an ICMP message in response to another ICMP
> > message. However, I am not entirely sure that this is a good idea. One
> > day in the future, some protocol other than ICMP may try send a respons=
e
> > to the source address of the ICMP message.
> >
> >
>
> Ron
> >
> > Juniper Business Use Only
> >
> > *From:*Pablo Camarillo (pcamaril) <pcamaril@cisco.com
> > <mailto:pcamaril@cisco.com>>
> > *Sent:* Tuesday, January 7, 2020 4:18 AM
> > *To:* Ron Bonica <rbonica@juniper.net <mailto:rbonica@juniper.net>>
> > *Cc:* SPRING WG <spring@ietf.org <mailto:spring@ietf.org>>
> > *Subject:* Re: [spring] SRv6 Network Programming - ICMP Source Address
> > Selection
> >
> > Ron,
> >
> > It=E2=80=99s good to see agreement on the fact that SRH follows RFC4443=
 Section
> > 2.2 with respect to how the ICMP Source Address is selected.
> >
> > Can you please point me to the text in
> > draft-ietf-spring-srv6-network-programming that changes the behavior
> > below from RFC4443 Section 2.2? I believe there is no such text.
> >
> > Thanks,
> >
> > Pablo.
> >
> > *From: *Ron Bonica <rbonica@juniper.net <mailto:rbonica@juniper.net>>
> > *Date: *Saturday, 21 December 2019 at 20:59
> > *To: *"Pablo Camarillo (pcamaril)" <pcamaril@cisco.com
> > <mailto:pcamaril@cisco.com>>
> > *Cc: *"spring@ietf.org <mailto:spring@ietf.org>" <spring@ietf.org
> > <mailto:spring@ietf.org>>
> > *Subject: *RE: [spring] SRv6 Network Programming - ICMP Source Address
> > Selection
> >
> > Pablo,
> >
> > Section 2.2 of RFC 4443 offers the following options:
> >
> > =E2=80=9C   (a) If the message is a response to a message sent to one o=
f the
> >
> >         node's unicast addresses, the Source Address of the reply MUST =
be
> >
> >         that same address.
> >
> >     (b) If the message is a response to a message sent to any other
> >
> >         address, such as
> >
> >         - a multicast group address,
> >
> >         - an anycast address implemented by the node, or
> >
> >         - a unicast address that does not belong to the node
> >
> >        the Source Address of the ICMPv6 packet MUST be a unicast addres=
s
> >
> >        belonging to the node. =E2=80=9C
> >
> > So, the question boils down to whether you consider a SID to be one of
> > the node=E2=80=99s unicast addresses. If so, the answer is a). If not, =
the
> > answer is b).
> >
> > So, which is it?
> >
> >                                                      Happy Holidays,
> >
> >                                                           Ron
> >
> > Juniper Business Use Only
> >
> > *From:*Pablo Camarillo (pcamaril) <pcamaril@cisco.com
> > <mailto:pcamaril@cisco.com>>
> > *Sent:* Friday, December 20, 2019 12:30 PM
> > *To:* Ron Bonica <rbonica@juniper.net <mailto:rbonica@juniper.net>>
> > *Cc:* spring@ietf.org <mailto:spring@ietf.org>
> > *Subject:* Re: [spring] SRv6 Network Programming - ICMP Source Address
> > Selection
> >
> > Ron,
> >
> > I guess that draft-ietf-6man-segment-routing-header does not contain an=
y
> > explicit text about it because it is not needed.
> >
> > Instead draft-ietf-6man-segment-routing-header contains a reference to
> > RFC4443 that details in section 2.2 how to select it.
> >
> > There is no text in draft-ietf-spring-srv6-network-programming that
> > changes such behavior.
> >
> > Happy Holidays,
> >
> > Pablo.
> >
> > *From: *spring <spring-bounces@ietf.org
> > <mailto:spring-bounces@ietf.org>> on behalf of Ron Bonica
> > <rbonica=3D40juniper.net@dmarc.ietf.org
> > <mailto:rbonica=3D40juniper.net@dmarc.ietf.org>>
> > *Date: *Thursday, 19 December 2019 at 14:59
> > *To: *"Pablo Camarillo (pcamaril)" <pcamaril@cisco.com
> > <mailto:pcamaril@cisco.com>>, "spring@ietf.org <mailto:spring@ietf.org>=
"
>
> > <spring@ietf.org <mailto:spring@ietf.org>>
> > *Subject: *Re: [spring] SRv6 Network Programming - ICMP Source Address
> > Selection
> >
> > Pablo,
> >
> > Can you provide a specific reference into
> > draft-ietf-6man-segment-routing-header? I can=E2=80=99t find the answer=
 to my
> > question in there.
> >
> >
>
> Ron
> >
> > Juniper Business Use Only
> >
> > *From:*Pablo Camarillo (pcamaril) <pcamaril@cisco.com
> > <mailto:pcamaril@cisco.com>>
> > *Sent:* Thursday, December 19, 2019 6:47 AM
> > *To:* Ron Bonica <rbonica@juniper.net <mailto:rbonica@juniper.net>>;
> > spring@ietf.org <mailto:spring@ietf.org>
> > *Subject:* Re: SRv6 Network Programming - ICMP Source Address Selection
> >
> > Ron,
> >
> > This is exactly the same as in the SRH.
> >
> > There is no text in draft-ietf-spring-srv6-network-programming that
> > changes this.
> >
> > Cheers,
> >
> > Pablo.
> >
> > *From: *Ron Bonica <rbonica@juniper.net <mailto:rbonica@juniper.net>>
> > *Date: *Monday, 9 December 2019 at 23:48
> > *To: *"Pablo Camarillo (pcamaril)" <pcamaril@cisco.com
> > <mailto:pcamaril@cisco.com>>, SPRING WG <spring@ietf.org
> > <mailto:spring@ietf.org>>, 6man <6man@ietf.org <mailto:6man@ietf.org>>
> > *Subject: *RE: SRv6 Network Programming - ICMP Source Address Selection
> >
> > Pablo,
> >
> > Section 2.2 of RFC 4443 offers two options. If you think that a SID is =
a
> > unicast address, the first option is applicable. If you think that a SI=
D
> > is not a unicast address, the second option is applicable.
> >
> > Which did you choose?
> >
> >
>                                                                          =
Ron
> >
> > Juniper Business Use Only
> >
> > *From:*Pablo Camarillo (pcamaril) <pcamaril@cisco.com
> > <mailto:pcamaril@cisco.com>>
> > *Sent:* Monday, December 9, 2019 10:18 AM
> > *To:* Ron Bonica <rbonica@juniper.net <mailto:rbonica@juniper.net>>;
> > SPRING WG <spring@ietf.org <mailto:spring@ietf.org>>; 6man
> > <6man@ietf.org <mailto:6man@ietf.org>>
> > *Subject:* Re: SRv6 Network Programming - ICMP Source Address Selection
> >
> > Ron,
> >
> > As you pointed out in your email, RFC4443 Section 2.2 is very clear
> > about how to select the source address.
> >
> > draft-ietf-spring-srv6-network-programming does not change this.
> >
> > Thanks,
> >
> > Pablo.
> >
> > *From: *ipv6 <ipv6-bounces@ietf.org <mailto:ipv6-bounces@ietf.org>> on
> > behalf of Ron Bonica <rbonica=3D40juniper.net@dmarc.ietf.org
> > <mailto:rbonica=3D40juniper.net@dmarc.ietf.org>>
> > *Date: *Friday, 6 December 2019 at 17:40
> > *To: *SPRING WG <spring@ietf.org <mailto:spring@ietf.org>>, 6man
> > <6man@ietf.org <mailto:6man@ietf.org>>
> > *Subject: *SRv6 Network Programming - ICMP Source Address Selection
> >
> > Authors,
> >
> > When an SRv6 node sends an ICMP message, how does it select the ICMP
> > message=E2=80=99s source address?
> >
> > Section 2.2 of RFC 4443 offers two options. If you think that a SID is =
a
> > unicast address, the first option is applicable. If you think that a SI=
D
> > is not a unicast address, the second option is applicable.
> >
> >                                                                       R=
on
> >
> > Juniper Business Use Only
> >
> > Please excuse any typos, sent from my 'smart'phone.
> >
> > Please excuse any typos, sent from my 'smart'phone.
> >
> > Please excuse any typos, sent from my 'smart'phone.
> >
> >
> > _______________________________________________
> > spring mailing list
> > spring@ietf.org
> > https://www.ietf.org/mailman/listinfo/spring
> >
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

--000000000000316dae059c0c6017
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"auto"><div><br><br><div class=3D"gmail_quote"><div dir=3D"ltr" =
class=3D"gmail_attr">On Tue, 14 Jan 2020, 05:29 Joel M. Halpern, &lt;<a hre=
f=3D"mailto:jmh@joelhalpern.com">jmh@joelhalpern.com</a>&gt; wrote:<br></di=
v><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:=
1px #ccc solid;padding-left:1ex">Let me try asking the question a different=
 way.=C2=A0 (I hope I understand <br>
Ron;s question.)<br>
<br>
RFC 4443 clearly allows the ICMP source to be the destination address of <b=
r>
the offending packet.=C2=A0 You seem to be saying that sometimes that is ok=
ay <br>
for SRH=C2=A0 / network programming.<br>
<br>
At the same time, the SRH document and the network programming document <br=
>
are both quite clear that SRv6 SIDs are not IPv6 addresses.=C2=A0 They are =
<br>
other kinds of things that can be prefix routed.<br>
If SRv6 SIDs are NOT IPv6 addresses, then there would seem to be a <br>
problem with putting them in the source address field of an ICMP <br>
message.</blockquote></div></div><div dir=3D"auto"><br></div><div dir=3D"au=
to">I&#39;d say if SRv6 SIDs are stated not to be IPv6 addresses, then I th=
ink there is a problem with using their values anywhere with and in the IPv=
6 protocol, including packets&#39; DA fields, unless there is a translation=
 function between SRv6 SIDs and IPv6 addresses.</div><div dir=3D"auto"><br>=
</div><div dir=3D"auto">The translation function might be nothing more than=
 a simple copy of the 128 bit SID value into the place where it will be use=
d in IPv6, and I understand this would be the motivation for having 128 bit=
 SIDs in SRv6 and 20 bit SIDs in SR-MPLS.</div><div dir=3D"auto"><br></div>=
<div dir=3D"auto">However that then means SID values always have to comply =
with IPv6 address requirements and formats, regardless of SR context. Other=
wise, the translation function needs to be a transform between SRv6 SIDs an=
d IPv6 addresses.</div><div dir=3D"auto"><br></div><div dir=3D"auto"><br></=
div><div dir=3D"auto"><div class=3D"gmail_quote"><blockquote class=3D"gmail=
_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:=
1ex">=C2=A0 There is no document that describes or allows anything other <b=
r>
than an IPv6 address as the source address of an IPv6 ICMP.<br>
<br>
It seems like it ought to be possible to clarify this with some text. <br>
It does seem that something ought to be said.<br>
<br>
Yours,<br>
Joel<br>
<br>
On 1/13/2020 12:30 PM, Pablo Camarillo (pcamaril) wrote:<br>
&gt; Ron,<br>
&gt; <br>
&gt; You cannot pre-select or enforce one of the two options you refer to b=
elow.<br>
&gt; <br>
&gt; The ICMP behaviors/considerations for SRv6 NET-PGM are the same as in =
<br>
&gt; the SRH.<br>
&gt; <br>
&gt; It boils down to: when you generate an ICMP Parameter Problem Message =
<br>
&gt; you follow the logic described in RFC4443 section 2.2 to choose the <b=
r>
&gt; source address of the packet.<br>
&gt; <br>
&gt; RFC4443 offers two options A and B.<br>
&gt; <br>
&gt; In your implementation you need to develop both options and depending =
on <br>
&gt; the type of address you will choose either A or B. It is not possible =
to <br>
&gt; create an implementation shortcut and pre-select/enforce only one of t=
hem.<br>
&gt; <br>
&gt; Can you please point me to the text in <br>
&gt; draft-ietf-spring-srv6-network-programming that suggests that the ICMP=
 <br>
&gt; considerations are changed with respect to the SRH? I believe there is=
 none.<br>
&gt; <br>
&gt; Thank you,<br>
&gt; <br>
&gt; Pablo.<br>
&gt; <br>
&gt; *From: *Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net" target=
=3D"_blank" rel=3D"noreferrer">rbonica@juniper.net</a>&gt;<br>
&gt; *Date: *Friday, 10 January 2020 at 20:09<br>
&gt; *To: *&quot;Pablo Camarillo (pcamaril)&quot; &lt;<a href=3D"mailto:pca=
maril@cisco.com" target=3D"_blank" rel=3D"noreferrer">pcamaril@cisco.com</a=
>&gt;<br>
&gt; *Cc: *&quot;<a href=3D"mailto:spring@ietf.org" target=3D"_blank" rel=
=3D"noreferrer">spring@ietf.org</a>&quot; &lt;<a href=3D"mailto:spring@ietf=
.org" target=3D"_blank" rel=3D"noreferrer">spring@ietf.org</a>&gt;<br>
&gt; *Subject: *RE: [spring] SRv6 Network Programming - ICMP Source Address=
 <br>
&gt; Selection<br>
&gt; <br>
&gt; Pablo,<br>
&gt; <br>
&gt; So, in Section 4.1, Line S03, an SRv6 node sends an ICMP Parameter <br=
>
&gt; Problem Message. What is the source address in that message?<br>
&gt; <br>
&gt; Is it the destination address of the offending packet (i.e., A SID)? O=
r <br>
&gt; is in the address of an interface on the SRv6 node?<br>
&gt; <br>
&gt;=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0 Ron<br>
&gt; <br>
&gt; Juniper Business Use Only<br>
&gt; <br>
&gt; *From:*Pablo Camarillo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco=
.com" target=3D"_blank" rel=3D"noreferrer">pcamaril@cisco.com</a>&gt;<br>
&gt; *Sent:* Friday, January 10, 2020 11:54 AM<br>
&gt; *To:* Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net" target=3D"=
_blank" rel=3D"noreferrer">rbonica@juniper.net</a>&gt;<br>
&gt; *Cc:* <a href=3D"mailto:spring@ietf.org" target=3D"_blank" rel=3D"nore=
ferrer">spring@ietf.org</a><br>
&gt; *Subject:* Re: [spring] SRv6 Network Programming - ICMP Source Address=
 <br>
&gt; Selection<br>
&gt; <br>
&gt; Ron,<br>
&gt; <br>
&gt; There is no behavior in draft-ietf-spring-srv6-network-programming tha=
t <br>
&gt; proposes to encode a SID in the source address of the IPv6 header.<br>
&gt; <br>
&gt; If in the future someone would propose to do such thing in another I-D=
; <br>
&gt; it is up to those authors to justify why they would want to do this, a=
nd <br>
&gt; how to ensure that the processing does not break any other protocol. B=
ut <br>
&gt; as said, this is not in the scope of <br>
&gt; draft-ietf-spring-srv6-network-programming.<br>
&gt; <br>
&gt; Regarding the ICMP messages:<br>
&gt; <br>
&gt; SRH follows RFC4443 Section 2.2 with respect to how to select the ICMP=
 <br>
&gt; Source Address.<br>
&gt; <br>
&gt; SRv6 Network Programming does not change this (it simply follows the <=
br>
&gt; SRv6 rules defined by the SRH).<br>
&gt; <br>
&gt; In your email you refer to a possibility of future protocols breaking =
<br>
&gt; this. I don=E2=80=99t think that we can guess what future protocols wi=
ll do, and <br>
&gt; it is up to those future protocols to ensure compatibility with the <b=
r>
&gt; existing standards.<br>
&gt; <br>
&gt; Thanks,<br>
&gt; <br>
&gt; Pablo.<br>
&gt; <br>
&gt; *From: *Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net" target=
=3D"_blank" rel=3D"noreferrer">rbonica@juniper.net</a> &lt;mailto:<a href=
=3D"mailto:rbonica@juniper.net" target=3D"_blank" rel=3D"noreferrer">rbonic=
a@juniper.net</a>&gt;&gt;<br>
&gt; *Date: *Tuesday, 7 January 2020 at 19:07<br>
&gt; *To: *&quot;Pablo Camarillo (pcamaril)&quot; &lt;<a href=3D"mailto:pca=
maril@cisco.com" target=3D"_blank" rel=3D"noreferrer">pcamaril@cisco.com</a=
> <br>
&gt; &lt;mailto:<a href=3D"mailto:pcamaril@cisco.com" target=3D"_blank" rel=
=3D"noreferrer">pcamaril@cisco.com</a>&gt;&gt;<br>
&gt; *Cc: *SPRING WG &lt;<a href=3D"mailto:spring@ietf.org" target=3D"_blan=
k" rel=3D"noreferrer">spring@ietf.org</a> &lt;mailto:<a href=3D"mailto:spri=
ng@ietf.org" target=3D"_blank" rel=3D"noreferrer">spring@ietf.org</a>&gt;&g=
t;<br>
&gt; *Subject: *RE: [spring] SRv6 Network Programming - ICMP Source Address=
 <br>
&gt; Selection<br>
&gt; <br>
&gt; Pablo,<br>
&gt; <br>
&gt; Let me try to ask the question another way:<br>
&gt; <br>
&gt; 1)Is it generally acceptable for a SID to appear in the source address=
 <br>
&gt; field of an IPv6 header?<br>
&gt; <br>
&gt; 2)Can an exception be made for ICMP messages?<br>
&gt; <br>
&gt; I think that the answer to the first question is =E2=80=9Cno=E2=80=9D,=
 because doing so <br>
&gt; would break ICMP. Think about what would happen if:<br>
&gt; <br>
&gt; -Node S sends a packet to Node D with a SID S as its source address.<b=
r>
&gt; <br>
&gt; -Node Q is an intermediate node on the path from Node S to Node D. For=
 <br>
&gt; some reason, Node Q cannot forward the packet.<br>
&gt; <br>
&gt; -Node Q sends an ICMP message to Node S. The ICMP destination address =
is <br>
&gt; SID S.<br>
&gt; <br>
&gt; -The ICMP message arrives at Node A<br>
&gt; <br>
&gt; -Node A discards the ICMP message, because the payload is ICMP<br>
&gt; <br>
&gt; It might be OK to make an exception for ICMP messages. This is because=
 <br>
&gt; RFC 4443 forbids sending an ICMP message in response to another ICMP <=
br>
&gt; message. However, I am not entirely sure that this is a good idea. One=
 <br>
&gt; day in the future, some protocol other than ICMP may try send a respon=
se <br>
&gt; to the source address of the ICMP message.<br>
&gt; <br>
&gt;=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Ron<br>
&gt; <br>
&gt; Juniper Business Use Only<br>
&gt; <br>
&gt; *From:*Pablo Camarillo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco=
.com" target=3D"_blank" rel=3D"noreferrer">pcamaril@cisco.com</a> <br>
&gt; &lt;mailto:<a href=3D"mailto:pcamaril@cisco.com" target=3D"_blank" rel=
=3D"noreferrer">pcamaril@cisco.com</a>&gt;&gt;<br>
&gt; *Sent:* Tuesday, January 7, 2020 4:18 AM<br>
&gt; *To:* Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net" target=3D"=
_blank" rel=3D"noreferrer">rbonica@juniper.net</a> &lt;mailto:<a href=3D"ma=
ilto:rbonica@juniper.net" target=3D"_blank" rel=3D"noreferrer">rbonica@juni=
per.net</a>&gt;&gt;<br>
&gt; *Cc:* SPRING WG &lt;<a href=3D"mailto:spring@ietf.org" target=3D"_blan=
k" rel=3D"noreferrer">spring@ietf.org</a> &lt;mailto:<a href=3D"mailto:spri=
ng@ietf.org" target=3D"_blank" rel=3D"noreferrer">spring@ietf.org</a>&gt;&g=
t;<br>
&gt; *Subject:* Re: [spring] SRv6 Network Programming - ICMP Source Address=
 <br>
&gt; Selection<br>
&gt; <br>
&gt; Ron,<br>
&gt; <br>
&gt; It=E2=80=99s good to see agreement on the fact that SRH follows RFC444=
3 Section <br>
&gt; 2.2 with respect to how the ICMP Source Address is selected.<br>
&gt; <br>
&gt; Can you please point me to the text in <br>
&gt; draft-ietf-spring-srv6-network-programming that changes the behavior <=
br>
&gt; below from RFC4443 Section 2.2? I believe there is no such text.<br>
&gt; <br>
&gt; Thanks,<br>
&gt; <br>
&gt; Pablo.<br>
&gt; <br>
&gt; *From: *Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net" target=
=3D"_blank" rel=3D"noreferrer">rbonica@juniper.net</a> &lt;mailto:<a href=
=3D"mailto:rbonica@juniper.net" target=3D"_blank" rel=3D"noreferrer">rbonic=
a@juniper.net</a>&gt;&gt;<br>
&gt; *Date: *Saturday, 21 December 2019 at 20:59<br>
&gt; *To: *&quot;Pablo Camarillo (pcamaril)&quot; &lt;<a href=3D"mailto:pca=
maril@cisco.com" target=3D"_blank" rel=3D"noreferrer">pcamaril@cisco.com</a=
> <br>
&gt; &lt;mailto:<a href=3D"mailto:pcamaril@cisco.com" target=3D"_blank" rel=
=3D"noreferrer">pcamaril@cisco.com</a>&gt;&gt;<br>
&gt; *Cc: *&quot;<a href=3D"mailto:spring@ietf.org" target=3D"_blank" rel=
=3D"noreferrer">spring@ietf.org</a> &lt;mailto:<a href=3D"mailto:spring@iet=
f.org" target=3D"_blank" rel=3D"noreferrer">spring@ietf.org</a>&gt;&quot; &=
lt;<a href=3D"mailto:spring@ietf.org" target=3D"_blank" rel=3D"noreferrer">=
spring@ietf.org</a> <br>
&gt; &lt;mailto:<a href=3D"mailto:spring@ietf.org" target=3D"_blank" rel=3D=
"noreferrer">spring@ietf.org</a>&gt;&gt;<br>
&gt; *Subject: *RE: [spring] SRv6 Network Programming - ICMP Source Address=
 <br>
&gt; Selection<br>
&gt; <br>
&gt; Pablo,<br>
&gt; <br>
&gt; Section 2.2 of RFC 4443 offers the following options:<br>
&gt; <br>
&gt; =E2=80=9C=C2=A0=C2=A0 (a) If the message is a response to a message se=
nt to one of the<br>
&gt; <br>
&gt;=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 node&#39;s unicast addresse=
s, the Source Address of the reply MUST be<br>
&gt; <br>
&gt;=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 that same address.<br>
&gt; <br>
&gt;=C2=A0 =C2=A0=C2=A0 (b) If the message is a response to a message sent =
to any other<br>
&gt; <br>
&gt;=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 address, such as<br>
&gt; <br>
&gt;=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 - a multicast group address=
,<br>
&gt; <br>
&gt;=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 - an anycast address implem=
ented by the node, or<br>
&gt; <br>
&gt;=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 - a unicast address that do=
es not belong to the node<br>
&gt; <br>
&gt;=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 the Source Address of the ICMPv6 =
packet MUST be a unicast address<br>
&gt; <br>
&gt;=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 belonging to the node. =E2=80=9C<=
br>
&gt; <br>
&gt; So, the question boils down to whether you consider a SID to be one of=
 <br>
&gt; the node=E2=80=99s unicast addresses. If so, the answer is a). If not,=
 the <br>
&gt; answer is b).<br>
&gt; <br>
&gt; So, which is it?<br>
&gt; <br>
&gt;=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0 Happy Holidays,<br>
&gt; <br>
&gt;=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0Ron<br>
&gt; <br>
&gt; Juniper Business Use Only<br>
&gt; <br>
&gt; *From:*Pablo Camarillo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco=
.com" target=3D"_blank" rel=3D"noreferrer">pcamaril@cisco.com</a> <br>
&gt; &lt;mailto:<a href=3D"mailto:pcamaril@cisco.com" target=3D"_blank" rel=
=3D"noreferrer">pcamaril@cisco.com</a>&gt;&gt;<br>
&gt; *Sent:* Friday, December 20, 2019 12:30 PM<br>
&gt; *To:* Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net" target=3D"=
_blank" rel=3D"noreferrer">rbonica@juniper.net</a> &lt;mailto:<a href=3D"ma=
ilto:rbonica@juniper.net" target=3D"_blank" rel=3D"noreferrer">rbonica@juni=
per.net</a>&gt;&gt;<br>
&gt; *Cc:* <a href=3D"mailto:spring@ietf.org" target=3D"_blank" rel=3D"nore=
ferrer">spring@ietf.org</a> &lt;mailto:<a href=3D"mailto:spring@ietf.org" t=
arget=3D"_blank" rel=3D"noreferrer">spring@ietf.org</a>&gt;<br>
&gt; *Subject:* Re: [spring] SRv6 Network Programming - ICMP Source Address=
 <br>
&gt; Selection<br>
&gt; <br>
&gt; Ron,<br>
&gt; <br>
&gt; I guess that draft-ietf-6man-segment-routing-header does not contain a=
ny <br>
&gt; explicit text about it because it is not needed.<br>
&gt; <br>
&gt; Instead draft-ietf-6man-segment-routing-header contains a reference to=
 <br>
&gt; RFC4443 that details in section 2.2 how to select it.<br>
&gt; <br>
&gt; There is no text in draft-ietf-spring-srv6-network-programming that <b=
r>
&gt; changes such behavior.<br>
&gt; <br>
&gt; Happy Holidays,<br>
&gt; <br>
&gt; Pablo.<br>
&gt; <br>
&gt; *From: *spring &lt;<a href=3D"mailto:spring-bounces@ietf.org" target=
=3D"_blank" rel=3D"noreferrer">spring-bounces@ietf.org</a> <br>
&gt; &lt;mailto:<a href=3D"mailto:spring-bounces@ietf.org" target=3D"_blank=
" rel=3D"noreferrer">spring-bounces@ietf.org</a>&gt;&gt; on behalf of Ron B=
onica <br>
&gt; &lt;rbonica=3D<a href=3D"mailto:40juniper.net@dmarc.ietf.org" target=
=3D"_blank" rel=3D"noreferrer">40juniper.net@dmarc.ietf.org</a> <br>
&gt; &lt;mailto:<a href=3D"mailto:rbonica" target=3D"_blank" rel=3D"norefer=
rer">rbonica</a>=3D<a href=3D"mailto:40juniper.net@dmarc.ietf.org" target=
=3D"_blank" rel=3D"noreferrer">40juniper.net@dmarc.ietf.org</a>&gt;&gt;<br>
&gt; *Date: *Thursday, 19 December 2019 at 14:59<br>
&gt; *To: *&quot;Pablo Camarillo (pcamaril)&quot; &lt;<a href=3D"mailto:pca=
maril@cisco.com" target=3D"_blank" rel=3D"noreferrer">pcamaril@cisco.com</a=
> <br>
&gt; &lt;mailto:<a href=3D"mailto:pcamaril@cisco.com" target=3D"_blank" rel=
=3D"noreferrer">pcamaril@cisco.com</a>&gt;&gt;, &quot;<a href=3D"mailto:spr=
ing@ietf.org" target=3D"_blank" rel=3D"noreferrer">spring@ietf.org</a> &lt;=
mailto:<a href=3D"mailto:spring@ietf.org" target=3D"_blank" rel=3D"noreferr=
er">spring@ietf.org</a>&gt;&quot; <br>
&gt; &lt;<a href=3D"mailto:spring@ietf.org" target=3D"_blank" rel=3D"norefe=
rrer">spring@ietf.org</a> &lt;mailto:<a href=3D"mailto:spring@ietf.org" tar=
get=3D"_blank" rel=3D"noreferrer">spring@ietf.org</a>&gt;&gt;<br>
&gt; *Subject: *Re: [spring] SRv6 Network Programming - ICMP Source Address=
 <br>
&gt; Selection<br>
&gt; <br>
&gt; Pablo,<br>
&gt; <br>
&gt; Can you provide a specific reference into <br>
&gt; draft-ietf-6man-segment-routing-header? I can=E2=80=99t find the answe=
r to my <br>
&gt; question in there.<br>
&gt; <br>
&gt;=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0 Ron<br>
&gt; <br>
&gt; Juniper Business Use Only<br>
&gt; <br>
&gt; *From:*Pablo Camarillo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco=
.com" target=3D"_blank" rel=3D"noreferrer">pcamaril@cisco.com</a> <br>
&gt; &lt;mailto:<a href=3D"mailto:pcamaril@cisco.com" target=3D"_blank" rel=
=3D"noreferrer">pcamaril@cisco.com</a>&gt;&gt;<br>
&gt; *Sent:* Thursday, December 19, 2019 6:47 AM<br>
&gt; *To:* Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net" target=3D"=
_blank" rel=3D"noreferrer">rbonica@juniper.net</a> &lt;mailto:<a href=3D"ma=
ilto:rbonica@juniper.net" target=3D"_blank" rel=3D"noreferrer">rbonica@juni=
per.net</a>&gt;&gt;; <br>
&gt; <a href=3D"mailto:spring@ietf.org" target=3D"_blank" rel=3D"noreferrer=
">spring@ietf.org</a> &lt;mailto:<a href=3D"mailto:spring@ietf.org" target=
=3D"_blank" rel=3D"noreferrer">spring@ietf.org</a>&gt;<br>
&gt; *Subject:* Re: SRv6 Network Programming - ICMP Source Address Selectio=
n<br>
&gt; <br>
&gt; Ron,<br>
&gt; <br>
&gt; This is exactly the same as in the SRH.<br>
&gt; <br>
&gt; There is no text in draft-ietf-spring-srv6-network-programming that <b=
r>
&gt; changes this.<br>
&gt; <br>
&gt; Cheers,<br>
&gt; <br>
&gt; Pablo.<br>
&gt; <br>
&gt; *From: *Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net" target=
=3D"_blank" rel=3D"noreferrer">rbonica@juniper.net</a> &lt;mailto:<a href=
=3D"mailto:rbonica@juniper.net" target=3D"_blank" rel=3D"noreferrer">rbonic=
a@juniper.net</a>&gt;&gt;<br>
&gt; *Date: *Monday, 9 December 2019 at 23:48<br>
&gt; *To: *&quot;Pablo Camarillo (pcamaril)&quot; &lt;<a href=3D"mailto:pca=
maril@cisco.com" target=3D"_blank" rel=3D"noreferrer">pcamaril@cisco.com</a=
> <br>
&gt; &lt;mailto:<a href=3D"mailto:pcamaril@cisco.com" target=3D"_blank" rel=
=3D"noreferrer">pcamaril@cisco.com</a>&gt;&gt;, SPRING WG &lt;<a href=3D"ma=
ilto:spring@ietf.org" target=3D"_blank" rel=3D"noreferrer">spring@ietf.org<=
/a> <br>
&gt; &lt;mailto:<a href=3D"mailto:spring@ietf.org" target=3D"_blank" rel=3D=
"noreferrer">spring@ietf.org</a>&gt;&gt;, 6man &lt;<a href=3D"mailto:6man@i=
etf.org" target=3D"_blank" rel=3D"noreferrer">6man@ietf.org</a> &lt;mailto:=
<a href=3D"mailto:6man@ietf.org" target=3D"_blank" rel=3D"noreferrer">6man@=
ietf.org</a>&gt;&gt;<br>
&gt; *Subject: *RE: SRv6 Network Programming - ICMP Source Address Selectio=
n<br>
&gt; <br>
&gt; Pablo,<br>
&gt; <br>
&gt; Section 2.2 of RFC 4443 offers two options. If you think that a SID is=
 a <br>
&gt; unicast address, the first option is applicable. If you think that a S=
ID <br>
&gt; is not a unicast address, the second option is applicable.<br>
&gt; <br>
&gt; Which did you choose?<br>
&gt; <br>
&gt;=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Ron<b=
r>
&gt; <br>
&gt; Juniper Business Use Only<br>
&gt; <br>
&gt; *From:*Pablo Camarillo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco=
.com" target=3D"_blank" rel=3D"noreferrer">pcamaril@cisco.com</a> <br>
&gt; &lt;mailto:<a href=3D"mailto:pcamaril@cisco.com" target=3D"_blank" rel=
=3D"noreferrer">pcamaril@cisco.com</a>&gt;&gt;<br>
&gt; *Sent:* Monday, December 9, 2019 10:18 AM<br>
&gt; *To:* Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net" target=3D"=
_blank" rel=3D"noreferrer">rbonica@juniper.net</a> &lt;mailto:<a href=3D"ma=
ilto:rbonica@juniper.net" target=3D"_blank" rel=3D"noreferrer">rbonica@juni=
per.net</a>&gt;&gt;; <br>
&gt; SPRING WG &lt;<a href=3D"mailto:spring@ietf.org" target=3D"_blank" rel=
=3D"noreferrer">spring@ietf.org</a> &lt;mailto:<a href=3D"mailto:spring@iet=
f.org" target=3D"_blank" rel=3D"noreferrer">spring@ietf.org</a>&gt;&gt;; 6m=
an <br>
&gt; &lt;<a href=3D"mailto:6man@ietf.org" target=3D"_blank" rel=3D"noreferr=
er">6man@ietf.org</a> &lt;mailto:<a href=3D"mailto:6man@ietf.org" target=3D=
"_blank" rel=3D"noreferrer">6man@ietf.org</a>&gt;&gt;<br>
&gt; *Subject:* Re: SRv6 Network Programming - ICMP Source Address Selectio=
n<br>
&gt; <br>
&gt; Ron,<br>
&gt; <br>
&gt; As you pointed out in your email, RFC4443 Section 2.2 is very clear <b=
r>
&gt; about how to select the source address.<br>
&gt; <br>
&gt; draft-ietf-spring-srv6-network-programming does not change this.<br>
&gt; <br>
&gt; Thanks,<br>
&gt; <br>
&gt; Pablo.<br>
&gt; <br>
&gt; *From: *ipv6 &lt;<a href=3D"mailto:ipv6-bounces@ietf.org" target=3D"_b=
lank" rel=3D"noreferrer">ipv6-bounces@ietf.org</a> &lt;mailto:<a href=3D"ma=
ilto:ipv6-bounces@ietf.org" target=3D"_blank" rel=3D"noreferrer">ipv6-bounc=
es@ietf.org</a>&gt;&gt; on <br>
&gt; behalf of Ron Bonica &lt;rbonica=3D<a href=3D"mailto:40juniper.net@dma=
rc.ietf.org" target=3D"_blank" rel=3D"noreferrer">40juniper.net@dmarc.ietf.=
org</a> <br>
&gt; &lt;mailto:<a href=3D"mailto:rbonica" target=3D"_blank" rel=3D"norefer=
rer">rbonica</a>=3D<a href=3D"mailto:40juniper.net@dmarc.ietf.org" target=
=3D"_blank" rel=3D"noreferrer">40juniper.net@dmarc.ietf.org</a>&gt;&gt;<br>
&gt; *Date: *Friday, 6 December 2019 at 17:40<br>
&gt; *To: *SPRING WG &lt;<a href=3D"mailto:spring@ietf.org" target=3D"_blan=
k" rel=3D"noreferrer">spring@ietf.org</a> &lt;mailto:<a href=3D"mailto:spri=
ng@ietf.org" target=3D"_blank" rel=3D"noreferrer">spring@ietf.org</a>&gt;&g=
t;, 6man <br>
&gt; &lt;<a href=3D"mailto:6man@ietf.org" target=3D"_blank" rel=3D"noreferr=
er">6man@ietf.org</a> &lt;mailto:<a href=3D"mailto:6man@ietf.org" target=3D=
"_blank" rel=3D"noreferrer">6man@ietf.org</a>&gt;&gt;<br>
&gt; *Subject: *SRv6 Network Programming - ICMP Source Address Selection<br=
>
&gt; <br>
&gt; Authors,<br>
&gt; <br>
&gt; When an SRv6 node sends an ICMP message, how does it select the ICMP <=
br>
&gt; message=E2=80=99s source address?<br>
&gt; <br>
&gt; Section 2.2 of RFC 4443 offers two options. If you think that a SID is=
 a <br>
&gt; unicast address, the first option is applicable. If you think that a S=
ID <br>
&gt; is not a unicast address, the second option is applicable.<br>
&gt; <br>
&gt;=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Ron<br>
&gt; <br>
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From: <bruno.decraene@orange.com>
To: Ron Bonica <rbonica@juniper.net>, "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
CC: "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6
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Hello Ron, Pablo,

From: Ron Bonica [mailto:rbonica@juniper.net]
Sent: Monday, January 13, 2020 9:38 PM
To: DECRAENE Bruno TGI/OLN
Cc: spring@ietf.org; Pablo Camarillo (pcamaril)
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Hello Bruno.

According to the network programming draft, "Network programming combines s=
egment routing functions, both simple and complex, to achieve a networking =
objective that goes beyond mere packet routing."

Sadly, the document offers little insight as to what those non-routing obje=
ctives might be.
Ron,
Thank you for elaborating on this comment. The scope of the revised comment=
 seem to me more focused and now indeed related to this document.

Ron, Pablo,
May I suggest that you both follow up to progress on a resolution on the co=
mment on this sentence?

e.g. clarify what is meant by "beyond packet routing", and/or what is exact=
ly meant by this sentence beyond what is already stated in the SR architect=
ure (which for example, but not restricted to, states that  "A segment can =
represent any instruction, topological or service based." )
If this can't be reasonably clarified, worse case could possibly be to remo=
ve this sentence or fall back to a reference to the/a SR architecture RFC/s=
ection/sentence. As of today, I don't assume that this point would be a blo=
cking point to progress that document or to delay it for a long time.


Thank you,
--Bruno



If SRv6 offers something beyond the mere packet routing capabilities of SR-=
MPLS, the network programming draft would be the most appropriate place to =
mention it. Otherwise, SRv6 is just an IPv6 version of SR-MPLS.

                                                                   Ron




Juniper Business Use Only
From: bruno.decraene@orange.com <bruno.decraene@orange.com>
Sent: Monday, January 13, 2020 8:12 AM
To: Ron Bonica <rbonica@juniper.net>
Cc: spring@ietf.org; Pablo Camarillo (pcamaril) <pcamaril@cisco.com>
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,


From: spring [mailto:spring-bounces@ietf.org] On Behalf Of Ron Bonica
Sent: Friday, January 10, 2020 8:14 PM
To: Pablo Camarillo (pcamaril)
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Chairs,

I believe that we have two independent requests for a comparison of the ben=
efits of SRv6 over SR-MPLS in the network programming draft.

A comparison of the benefits of SRv6 over SR-MPLS is one thing that could p=
ossibly be discussed if there is interest from the WG.
E.g. to help network provider make a choice, or in the context of "beyond S=
Rv6" to help the WG identify the benefit/cost analysis of existing solution=
s and what we want to achieve with new/extensions to SR data planes.

But why do you think that this would belong to draft-ietf-spring-srv6-netwo=
rk-programming?

Thanks,
--Bruno


                                                            Ron




Juniper Business Use Only
From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> On B=
ehalf Of Pablo Camarillo (pcamaril)
Sent: Friday, January 10, 2020 11:55 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,

If you want to discuss your analysis please let's do so in a separate email=
 thread out of the context of the Working Group Last Call of draft-ietf-spr=
ing-srv6-network-programming.

As I said before: draft-ietf-spring-srv6-network-programming is a Standards=
 Track document and this topic is not about any standardization, hence out =
of scope of this document.

Same applies to other content (e.g. illustrations) that was formerly in net=
work programming and we moved to a separate draft since it was not standard=
izing anything at all and was merely informative.

Thanks,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Tuesday, 7 January 2020 at 19:17
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Pablo,

RFC 8354 reinforces my analysis in https://mailarchive.ietf.org/arch/msg/sp=
ring/3WGuQumIfcmH281nwq3s9Un6raI<https://urldefense.com/v3/__https:/mailarc=
hive.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6raI__;!!NEt6yMaO-gk!S=
olNvh35q4NS-PTVWOxXAzbTnMHltfvPWi_OSjhMYkmm_NucR6imYrrLvc35Kat6$>. Are you =
saying that you agree with this analysis?

                                             Ron






Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Tuesday, January 7, 2020 4:17 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,

SPRING has already done this work and documented the SRv6 use-cases in RFC8=
354 before progressing with the SRv6 standardization.

Further on, draft-ietf-spring-srv6-network-programming is a Standards Track=
 document.
I fail to see how a cite from RFC8354 or any other text on "SRv6 vs SR-MPLS=
" standardises anything at all.
Note that we have already removed text from draft-ietf-spring-srv6-network-=
programming (e.g. illustrations) because it was not standardising anything.

Thank you for the suggestion,
Pablo.

From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> on b=
ehalf of Ron Bonica <rbonica=3D40juniper.net@dmarc.ietf.org<mailto:rbonica=
=3D40juniper.net@dmarc.ietf.org>>
Date: Monday, 30 December 2019 at 11:08
To: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: [spring] draft-ietf-spring-srv6-network-programming: Relative adva=
ntages of SRv6

Pablo,

Would you consider adding a short section to the draft explaining the relat=
ive advantages of SRv6 over SR-MPLS? This section would explain why an netw=
ork operator would deploy SRv6 instead of SR-MPLS.

                                                                           =
              Ron



Juniper Business Use Only

Please excuse any typos, sent from my 'smart'phone.

___________________________________________________________________________=
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or:#1F497D"><o:p>&nbsp;</o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><b><span style=3D"font-=
size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;mso-farea=
st-font-family:&quot;Times New Roman&quot;">From:</span></b><span style=3D"=
font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;mso-=
fareast-font-family:&quot;Times New Roman&quot;">
 Ron Bonica [mailto:rbonica@juniper.net] <br>
<b>Sent:</b> Monday, January 13, 2020 9:38 PM<br>
<b>To:</b> DECRAENE Bruno TGI/OLN<br>
<b>Cc:</b> spring@ietf.org; Pablo Camarillo (pcamaril)<br>
<b>Subject:</b> RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">Hello Bruno.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">According to the network programming draft,=
 &#8220;Network programming combines segment routing functions, both simple=
 and complex, to achieve a networking objective
 that goes beyond mere packet routing.&#8221;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">Sadly, the document offers little insight a=
s to what those non-routing objectives might be.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US">Ron,<o:p></o:p></span></=
p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US">Thank you for elaboratin=
g on this comment. The scope of the revised comment
 seem to me more focused and now indeed related to this document.<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US">Ron, Pablo,
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US">May I suggest that you b=
oth follow up to progress on a resolution on the
 comment on this sentence?<o:p></o:p></span></p>
<pre><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;Calib=
ri&quot;,&quot;sans-serif&quot;;mso-bidi-font-family:&quot;Times New Roman&=
quot;;color:#1F497D;mso-ansi-language:EN-US">e.g. clarify what is meant by =
&#8220;beyond packet routing&#8221;, and/or what is exactly meant by this s=
entence beyond what is already stated in the SR architecture (which for exa=
mple, but not restricted to, states that</span><span lang=3D"EN-US" style=
=3D"font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;mso-bidi-font-fa=
mily:&quot;Times New Roman&quot;;color:#1F497D;mso-ansi-language:EN-US"> <s=
pan style=3D"mso-spacerun:yes">&nbsp;</span>&#8220;</span><span lang=3D"EN-=
US" style=3D"mso-fareast-font-family:&quot;Times New Roman&quot;;mso-ansi-l=
anguage:EN-US">A segment can represent any instruction, topological or serv=
ice based.&#8221;</span><span lang=3D"EN-US" style=3D"font-family:&quot;Cal=
ibri&quot;,&quot;sans-serif&quot;;mso-bidi-font-family:&quot;Times New Roma=
n&quot;;color:#1F497D;mso-ansi-language:EN-US"> )<o:p></o:p></span></pre>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US">If this can&#8217;t be r=
easonably clarified, worse case could possibly be to remove
 this sentence or fall back to a reference to the/a SR architecture RFC/sec=
tion/sentence. As of today, I don&#8217;t assume that this point would be a=
 blocking point to progress that document or to delay it for a long time.<o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US">Thank you,<o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US">--Bruno<o:p></o:p></span=
></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span>=
</p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">If SRv6 offers something beyond the mere pa=
cket routing capabilities of SR-MPLS, the network programming draft would b=
e the most appropriate place to mention
 it. Otherwise, SRv6 is just an IPv6 version of SR-MPLS.<o:p></o:p></span><=
/p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:35.4pt;margin-bottom:.=
0001pt;text-align:center">
<span lang=3D"EN-US" style=3D"font-size:7.0pt;color:black;mso-ansi-language=
:EN-US">Juniper Business Use Only</span><span lang=3D"EN-US" style=3D"mso-a=
nsi-language:EN-US"><o:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><b><span lang=3D"EN-US"=
 style=3D"mso-ansi-language:EN-US">From:</span></b><span lang=3D"EN-US" sty=
le=3D"mso-ansi-language:EN-US"> bruno.decraene@orange.com &lt;bruno.decraen=
e@orange.com&gt;
<br>
<b>Sent:</b> Monday, January 13, 2020 8:12 AM<br>
<b>To:</b> Ron Bonica &lt;rbonica@juniper.net&gt;<br>
<b>Cc:</b> spring@ietf.org; Pablo Camarillo (pcamaril) &lt;pcamaril@cisco.c=
om&gt;<br>
<b>Subject:</b> RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span style=3D"color:#1=
F497D">Ron,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span style=3D"color:#1=
F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><b><span lang=3D"EN-US"=
 style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&=
quot;;mso-ansi-language:EN-US">From:</span></b><span lang=3D"EN-US" style=
=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;=
mso-ansi-language:EN-US">
 spring [<a href=3D"mailto:spring-bounces@ietf.org">mailto:spring-bounces@i=
etf.org</a>]
<b>On Behalf Of </b>Ron Bonica<br>
<b>Sent:</b> Friday, January 10, 2020 8:14 PM<br>
<b>To:</b> Pablo Camarillo (pcamaril)<br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">Chairs,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">I believe that we have two independent requ=
ests for a comparison of the benefits of SRv6 over SR-MPLS in the network p=
rogramming draft.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US">A comparison of the benefits =
of SRv6 over SR-MPLS is one thing that could possibly be discussed if there=
 is interest from the WG.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US">E.g. to help network provider=
 make a choice, or in the context of &#8220;beyond SRv6&#8221; to help the =
WG identify the benefit/cost analysis of existing solutions
 and what we want to achieve with new/extensions to SR data planes. <o:p></=
o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US">But why do you think that thi=
s would belong to draft-ietf-spring-srv6-network-programming?
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US">Thanks,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US">--Bruno<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;Ron<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:70.8pt;margin-bottom:.=
0001pt;text-align:center">
<span lang=3D"EN-US" style=3D"font-size:7.0pt;color:black;mso-ansi-language=
:EN-US">Juniper Business Use Only</span><span lang=3D"EN-US" style=3D"mso-a=
nsi-language:EN-US"><o:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><b><span lang=3D"EN-US"=
 style=3D"mso-ansi-language:EN-US">From:</span></b><span lang=3D"EN-US" sty=
le=3D"mso-ansi-language:EN-US"> spring &lt;<a href=3D"mailto:spring-bounces=
@ietf.org">spring-bounces@ietf.org</a>&gt;
<b>On Behalf Of </b>Pablo Camarillo (pcamaril)<br>
<b>Sent:</b> Friday, January 10, 2020 11:55 AM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;<br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">Ron,
</span><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">If you want to discuss your analysis please=
 let&#8217;s do so in a separate email thread out of the context of the Wor=
king Group Last Call of draft-ietf-spring-srv6-network-programming.<o:p></o=
:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">As I said before:
</span><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-GB">draft-ietf-sp=
ring-srv6-network-programming is a Standards Track document and this topic =
is not about any standardization, hence out of scope of this document.
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">Same applies to other content (e.g. illustr=
ations) that was formerly in network programming and we moved to a separate=
 draft since it was not standardizing anything
 at all and was merely informative.</span><span lang=3D"EN-US" style=3D"mso=
-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">&nbsp;&nbsp;</span><span lang=3D"EN-US" sty=
le=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">Thanks,</span><span lang=3D"EN-US" style=3D=
"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">Pablo.</span><span lang=3D"EN-US" style=3D"=
mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-GB" st=
yle=3D"font-size:24.0pt;mso-ansi-language:EN-GB">&nbsp;</span><span lang=3D=
"EN-US" style=3D"font-size:24.0pt;mso-ansi-language:EN-US"><o:p></o:p></spa=
n></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><b><span lang=3D"EN-US=
" style=3D"font-size:12.0pt;color:black;mso-ansi-language:EN-US">From:
</span></b><span lang=3D"EN-US" style=3D"font-size:12.0pt;color:black;mso-a=
nsi-language:EN-US">Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">r=
bonica@juniper.net</a>&gt;<br>
<b>Date: </b>Tuesday, 7 January 2020 at 19:17<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;<a href=3D"mailto:pca=
maril@cisco.com">pcamaril@cisco.com</a>&gt;<br>
<b>Cc: </b>SPRING WG &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org=
</a>&gt;<br>
<b>Subject: </b>RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6</span><span lang=3D"EN-US" style=3D"mso-ansi-lang=
uage:EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">Pablo,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">RFC 8354 reinforces my analysis in
</span><span lang=3D"ES" style=3D"mso-ansi-language:ES"><a href=3D"https://=
urldefense.com/v3/__https:/mailarchive.ietf.org/arch/msg/spring/3WGuQumIfcm=
H281nwq3s9Un6raI__;!!NEt6yMaO-gk!SolNvh35q4NS-PTVWOxXAzbTnMHltfvPWi_OSjhMYk=
mm_NucR6imYrrLvc35Kat6$"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN=
-US">https://mailarchive.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6r=
aI</span></a></span><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">.
 Are you saying that you agree with this analysis?<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ro=
n<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0cm;margin-bottom:0cm;margin-left:106.8pt;margin-botto=
m:.0001pt;text-align:center">
<span lang=3D"EN-US" style=3D"font-size:7.0pt;color:black;mso-ansi-language=
:EN-US">Juniper Business Use Only</span><span lang=3D"EN-US" style=3D"mso-a=
nsi-language:EN-US"><o:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><b><span lang=3D"EN-US=
" style=3D"mso-ansi-language:EN-US">From:</span></b><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"> Pablo Camarillo (pcamaril) &lt;<a href=3D"=
mailto:pcamaril@cisco.com">pcamaril@cisco.com</a>&gt;
<br>
<b>Sent:</b> Tuesday, January 7, 2020 4:17 AM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;<br>
<b>Cc:</b> SPRING WG &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org=
</a>&gt;<br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">Ron,</span><span lang=3D"EN-US" style=3D"m=
so-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">&nbsp;</span><span lang=3D"EN-US" style=3D=
"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">SPRING has already done this work and docu=
mented the SRv6 use-cases in RFC8354 before progressing with the SRv6 stand=
ardization.</span><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o=
:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">&nbsp;</span><span lang=3D"EN-US" style=3D=
"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">Further on, draft-ietf-spring-srv6-network=
-programming is a Standards Track document.
</span><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">I fail to see how a cite from RFC8354 or a=
ny other text on &#8220;SRv6 vs SR-MPLS&#8221; standardises anything at all.
</span><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">Note that we have already removed text fro=
m draft-ietf-spring-srv6-network-programming (e.g. illustrations) because i=
t was not standardising anything.</span><span lang=3D"EN-US" style=3D"mso-a=
nsi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">&nbsp;</span><span lang=3D"EN-US" style=3D=
"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">Thank you for the suggestion,</span><span =
lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">Pablo.</span><span lang=3D"EN-US" style=3D=
"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">&nbsp;</span><span lang=3D"EN-US" style=3D=
"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt"><b><span lang=3D"EN-US=
" style=3D"font-size:12.0pt;color:black;mso-ansi-language:EN-US">From:
</span></b><span lang=3D"EN-US" style=3D"font-size:12.0pt;color:black;mso-a=
nsi-language:EN-US">spring &lt;</span><span lang=3D"ES" style=3D"mso-ansi-l=
anguage:ES"><a href=3D"mailto:spring-bounces@ietf.org"><span lang=3D"EN-US"=
 style=3D"font-size:12.0pt;mso-ansi-language:EN-US">spring-bounces@ietf.org=
</span></a></span><span lang=3D"EN-US" style=3D"font-size:12.0pt;color:blac=
k;mso-ansi-language:EN-US">&gt;
 on behalf of Ron Bonica &lt;</span><span lang=3D"ES" style=3D"mso-ansi-lan=
guage:ES"><a href=3D"mailto:rbonica=3D40juniper.net@dmarc.ietf.org"><span l=
ang=3D"EN-US" style=3D"font-size:12.0pt;mso-ansi-language:EN-US">rbonica=3D=
40juniper.net@dmarc.ietf.org</span></a></span><span lang=3D"EN-US" style=3D=
"font-size:12.0pt;color:black;mso-ansi-language:EN-US">&gt;<br>
<b>Date: </b>Monday, 30 December 2019 at 11:08<br>
<b>To: </b>SPRING WG &lt;</span><span lang=3D"ES" style=3D"mso-ansi-languag=
e:ES"><a href=3D"mailto:spring@ietf.org"><span lang=3D"EN-US" style=3D"font=
-size:12.0pt;mso-ansi-language:EN-US">spring@ietf.org</span></a></span><spa=
n lang=3D"EN-US" style=3D"font-size:12.0pt;color:black;mso-ansi-language:EN=
-US">&gt;<br>
<b>Subject: </b>[spring] draft-ietf-spring-srv6-network-programming: Relati=
ve advantages of SRv6</span><span lang=3D"EN-US" style=3D"mso-ansi-language=
:EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">Pablo,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">Would you consider adding a short section =
to the draft explaining the relative advantages of SRv6 over SR-MPLS? This =
section would explain why an network operator
 would deploy SRv6 instead of SR-MPLS.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ron<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0cm;margin-bottom:0cm;margin-left:142.8pt;margin-botto=
m:.0001pt;text-align:center;margin-bottom:..0001pt">
<span lang=3D"EN-US" style=3D"font-size:7.0pt;color:black;mso-ansi-language=
:EN-US">Juniper Business Use Only</span><span lang=3D"EN-US" style=3D"mso-a=
nsi-language:EN-US"><o:p></o:p></span></p>
<div id=3D"ms-outlook-mobile-signature">
<div>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">Please excuse any typos, sent from my 'smar=
t'phone.<o:p></o:p></span></p>
</div>
<pre style=3D"margin-left:35.4pt">_________________________________________=
___________________________________________________________________________=
_____<o:p></o:p></pre>
<pre style=3D"margin-left:35.4pt"><o:p>&nbsp;</o:p></pre>
<pre style=3D"margin-left:35.4pt">Ce message et ses pieces jointes peuvent =
contenir des informations confidentielles ou privilegiees et ne doivent don=
c<o:p></o:p></pre>
<pre style=3D"margin-left:35.4pt">pas etre diffuses, exploites ou copies sa=
ns autorisation. Si vous avez recu ce message par erreur, veuillez le signa=
ler<o:p></o:p></pre>
<pre style=3D"margin-left:35.4pt">a l'expediteur et le detruire ainsi que l=
es pieces jointes. Les messages electroniques etant susceptibles d'alterati=
on,<o:p></o:p></pre>
<pre style=3D"margin-left:35.4pt">Orange decline toute responsabilite si ce=
 message a ete altere, deforme ou falsifie. Merci.<o:p></o:p></pre>
<pre style=3D"margin-left:35.4pt"><o:p>&nbsp;</o:p></pre>
<pre style=3D"margin-left:35.4pt">This message and its attachments may cont=
ain confidential or privileged information that may be protected by law;<o:=
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<pre style=3D"margin-left:35.4pt">they should not be distributed, used or c=
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></pre>
<pre style=3D"margin-left:35.4pt">Thank you.<o:p></o:p></pre>
</div>
<PRE>______________________________________________________________________=
___________________________________________________

Ce message et ses pieces jointes peuvent contenir des informations confiden=
tielles ou privilegiees et ne doivent donc
pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler
a l'expediteur et le detruire ainsi que les pieces jointes. Les messages el=
ectroniques etant susceptibles d'alteration,
Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.

This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;
they should not be distributed, used or copied without authorisation.
If you have received this email in error, please notify the sender and dele=
te this message and its attachments.
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Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Selection
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From: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
To: "rbonica@juniper.net" <rbonica@juniper.net>
CC: "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [spring] SRv6 Network Programming - ICMP Source Address Selection
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Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Selection
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From: Ron Bonica <rbonica@juniper.net>
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
CC: "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [spring] SRv6 Network Programming - ICMP Source Address Selection
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/etmNDt_2UUjH1vLneXQszPCRfbo>
Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Selection
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Pablo,

Can we unequivocally say that all of the SIDs mentioned in the PGM document=
 are unicast addresses?

                                                                           =
    Ron




Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com>
Sent: Tuesday, January 14, 2020 12:44 PM
To: Ron Bonica <rbonica@juniper.net>
Cc: spring@ietf.org
Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Ron,

As a matter of fact we cannot "unequivocally state that a SID is a unicast =
address" always. Simple reason: RFC8402 - "3.3.  IGP-Anycast Segment (Anyca=
st-SID)".

Cheers,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Monday, 13 January 2020 at 20:41
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Cc: "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sprin=
g@ietf.org>>
Subject: RE: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Pablo,

The problem isn't a statement in the network programming draft. It is an om=
ission in the network programming draft.

If the network programming draft unequivocally stated that a SID is a unica=
st address of the instantiating node, the following text from RFC 4443 woul=
d apply:


"If the message is a response to a message sent to one of the node's unicas=
t addresses, the Source Address of the reply MUST be  that same address."


If the network programming draft unequivocally stated that a SID is a not u=
nicast address of the instantiating node, the following text from RFC 4443 =
would apply:


If the message is a response to a message sent to any other address, the So=
urce Address of the ICMPv6 packet MUST be a unicast address belonging to th=
e node.

                                                                           =
                                 Ron



Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Monday, January 13, 2020 12:31 PM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Ron,

You cannot pre-select or enforce one of the two options you refer to below.

The ICMP behaviors/considerations for SRv6 NET-PGM are the same as in the S=
RH.
It boils down to: when you generate an ICMP Parameter Problem Message you f=
ollow the logic described in RFC4443 section 2.2 to choose the source addre=
ss of the packet.
RFC4443 offers two options A and B.
In your implementation you need to develop both options and depending on th=
e type of address you will choose either A or B. It is not possible to crea=
te an implementation shortcut and pre-select/enforce only one of them.

Can you please point me to the text in draft-ietf-spring-srv6-network-progr=
amming that suggests that the ICMP considerations are changed with respect =
to the SRH? I believe there is none.

Thank you,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Friday, 10 January 2020 at 20:09
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Cc: "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sprin=
g@ietf.org>>
Subject: RE: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Pablo,

So, in Section 4.1, Line S03, an SRv6 node sends an ICMP Parameter Problem =
Message. What is the source address in that message?

Is it the destination address of the offending packet (i.e., A SID)? Or is =
in the address of an interface on the SRv6 node?

                                                                           =
              Ron




Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Friday, January 10, 2020 11:54 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Ron,

There is no behavior in draft-ietf-spring-srv6-network-programming that pro=
poses to encode a SID in the source address of the IPv6 header.

If in the future someone would propose to do such thing in another I-D; it =
is up to those authors to justify why they would want to do this, and how t=
o ensure that the processing does not break any other protocol. But as said=
, this is not in the scope of draft-ietf-spring-srv6-network-programming.

Regarding the ICMP messages:
SRH follows RFC4443 Section 2.2 with respect to how to select the ICMP Sour=
ce Address.
SRv6 Network Programming does not change this (it simply follows the SRv6 r=
ules defined by the SRH).

In your email you refer to a possibility of future protocols breaking this.=
 I don't think that we can guess what future protocols will do, and it is u=
p to those future protocols to ensure compatibility with the existing stand=
ards.

Thanks,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Tuesday, 7 January 2020 at 19:07
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: RE: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Pablo,

Let me try to ask the question another way:


1)      Is it generally acceptable for a SID to appear in the source addres=
s field of an IPv6 header?

2)      Can an exception be made for ICMP messages?

I think that the answer to the first question is "no", because doing so wou=
ld break ICMP. Think about what would happen if:


-          Node S sends a packet to Node D with a SID S as its source addre=
ss.

-          Node Q is an intermediate node on the path from Node S to Node D=
. For some reason, Node Q cannot forward the packet.

-          Node Q sends an ICMP message to Node S. The ICMP destination add=
ress is SID S.

-          The ICMP message arrives at Node A

-          Node A discards the ICMP message, because the payload is ICMP

It might be OK to make an exception for ICMP messages. This is because RFC =
4443 forbids sending an ICMP message in response to another ICMP message. H=
owever, I am not entirely sure that this is a good idea. One day in the fut=
ure, some protocol other than ICMP may try send a response to the source ad=
dress of the ICMP message.

                                                                           =
          Ron




Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Tuesday, January 7, 2020 4:18 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Ron,

It's good to see agreement on the fact that SRH follows RFC4443 Section 2.2=
 with respect to how the ICMP Source Address is selected.

Can you please point me to the text in draft-ietf-spring-srv6-network-progr=
amming that changes the behavior below from RFC4443 Section 2.2? I believe =
there is no such text.

Thanks,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Saturday, 21 December 2019 at 20:59
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Cc: "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sprin=
g@ietf.org>>
Subject: RE: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Pablo,

Section 2.2 of RFC 4443 offers the following options:

"   (a) If the message is a response to a message sent to one of the
       node's unicast addresses, the Source Address of the reply MUST be
       that same address.

   (b) If the message is a response to a message sent to any other
       address, such as

       - a multicast group address,
       - an anycast address implemented by the node, or
       - a unicast address that does not belong to the node

      the Source Address of the ICMPv6 packet MUST be a unicast address
      belonging to the node. "

So, the question boils down to whether you consider a SID to be one of the =
node's unicast addresses. If so, the answer is a). If not, the answer is b)=
.

So, which is it?

                                                    Happy Holidays,
                                                         Ron





Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Friday, December 20, 2019 12:30 PM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Ron,

I guess that draft-ietf-6man-segment-routing-header does not contain any ex=
plicit text about it because it is not needed.
Instead draft-ietf-6man-segment-routing-header contains a reference to RFC4=
443 that details in section 2.2 how to select it.

There is no text in draft-ietf-spring-srv6-network-programming that changes=
 such behavior.

Happy Holidays,
Pablo.

From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> on b=
ehalf of Ron Bonica <rbonica=3D40juniper.net@dmarc.ietf.org<mailto:rbonica=
=3D40juniper.net@dmarc.ietf.org>>
Date: Thursday, 19 December 2019 at 14:59
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>, "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sp=
ring@ietf.org>>
Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Select=
ion

Pablo,

Can you provide a specific reference into draft-ietf-6man-segment-routing-h=
eader? I can't find the answer to my question in there.

                                                                           =
              Ron





Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Thursday, December 19, 2019 6:47 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>; spring@ie=
tf.org<mailto:spring@ietf.org>
Subject: Re: SRv6 Network Programming - ICMP Source Address Selection

Ron,

This is exactly the same as in the SRH.
There is no text in draft-ietf-spring-srv6-network-programming that changes=
 this.

Cheers,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Monday, 9 December 2019 at 23:48
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>, SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>, 6man <6man@ietf=
.org<mailto:6man@ietf.org>>
Subject: RE: SRv6 Network Programming - ICMP Source Address Selection

Pablo,

Section 2.2 of RFC 4443 offers two options. If you think that a SID is a un=
icast address, the first option is applicable. If you think that a SID is n=
ot a unicast address, the second option is applicable.

Which did you choose?

                                                                         Ro=
n



Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Monday, December 9, 2019 10:18 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>; SPRING WG=
 <spring@ietf.org<mailto:spring@ietf.org>>; 6man <6man@ietf.org<mailto:6man=
@ietf.org>>
Subject: Re: SRv6 Network Programming - ICMP Source Address Selection

Ron,

As you pointed out in your email, RFC4443 Section 2.2 is very clear about h=
ow to select the source address.
draft-ietf-spring-srv6-network-programming does not change this.

Thanks,
Pablo.

From: ipv6 <ipv6-bounces@ietf.org<mailto:ipv6-bounces@ietf.org>> on behalf =
of Ron Bonica <rbonica=3D40juniper.net@dmarc.ietf.org<mailto:rbonica=3D40ju=
niper.net@dmarc.ietf.org>>
Date: Friday, 6 December 2019 at 17:40
To: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>, 6man <6man@ietf.or=
g<mailto:6man@ietf.org>>
Subject: SRv6 Network Programming - ICMP Source Address Selection

Authors,

When an SRv6 node sends an ICMP message, how does it select the ICMP messag=
e's source address?

Section 2.2 of RFC 4443 offers two options. If you think that a SID is a un=
icast address, the first option is applicable. If you think that a SID is n=
ot a unicast address, the second option is applicable.

                                                                     Ron


Juniper Business Use Only

Please excuse any typos, sent from my 'smart'phone.

Please excuse any typos, sent from my 'smart'phone.

Please excuse any typos, sent from my 'smart'phone.

--_000_BN7PR05MB3938CE48494065688C53BB86AE340BN7PR05MB3938namp_
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<p class=3D"MsoNormal">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Can we unequivocally say that all of the SIDs mentio=
ned in the PGM document are unicast addresses?<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0in;margin=
-bottom:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b>From:</b> Pablo Camarillo (pcamaril) &lt;pcamaril=
@cisco.com&gt;
<br>
<b>Sent:</b> Tuesday, January 14, 2020 12:44 PM<br>
<b>To:</b> Ron Bonica &lt;rbonica@juniper.net&gt;<br>
<b>Cc:</b> spring@ietf.org<br>
<b>Subject:</b> Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Ron,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">As a matter of fact we cannot &=
#8220;unequivocally state that a SID is a unicast address&#8221; always. Si=
mple reason: RFC8402 - &#8220;3.3.&nbsp; IGP-Anycast Segment (Anycast-SID)&=
#8221;.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Cheers,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Pablo.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><span style=3D"font-si=
ze:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">Ron Bonica &lt;<a h=
ref=3D"mailto:rbonica@juniper.net">rbonica@juniper.net</a>&gt;<br>
<b>Date: </b>Monday, 13 January 2020 at 20:41<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;<a href=3D"mailto:pca=
maril@cisco.com">pcamaril@cisco.com</a>&gt;<br>
<b>Cc: </b>&quot;<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&quo=
t; &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&gt;<br>
<b>Subject: </b>RE: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><o:p>&nbsp;</o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">The problem isn&#8217;t a=
 statement in the network programming draft. It is an omission in the netwo=
rk programming draft.
<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">If the network programmin=
g draft unequivocally stated that a SID is a unicast address of the instant=
iating node, the following text from RFC 4443 would apply:<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:1.0in">&#8220;If the mes=
sage is a response to a message sent to one of the node's unicast addresses=
, the Source Address of the reply MUST be&nbsp; that same address.&#8221;<o=
:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p>=
</p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">If the network programmin=
g draft unequivocally stated that a SID is a not unicast address of the ins=
tantiating node, the following text from RFC 4443 would apply:<o:p></o:p></=
p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:1.0in">If the message is=
 a response to a message sent to any other address, the Source Address of t=
he ICMPv6 packet MUST be a unicast address belonging to the node.<o:p></o:p=
></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.00=
01pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b>From:</b> Pablo Camari=
llo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco.com">pcamaril@cisco.com=
</a>&gt;
<br>
<b>Sent:</b> Monday, January 13, 2020 12:31 PM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;<br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><br>
<b>Subject:</b> Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">Ron,=
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">&nbs=
p;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">You =
cannot pre-select or enforce one of the two options you refer to below.</sp=
an><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">&nbs=
p;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">The =
ICMP behaviors/considerations for SRv6 NET-PGM are the same as in the SRH.
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">It b=
oils down to:&nbsp;</span>when you generate an ICMP Parameter Problem Messa=
ge you follow the logic described in RFC4443 section 2.2 to choose the sour=
ce address of the packet.
<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">RFC4443 offers two option=
s A and B.&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">In your implementation yo=
u need to develop both options and depending on the type of address you wil=
l choose either A or B. It is not possible to create an implementation shor=
tcut and pre-select/enforce only one
 of them.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">Can =
you please point me to the text in draft-ietf-spring-srv6-network-programmi=
ng that suggests that the ICMP considerations are changed with respect to t=
he SRH? I believe there is none.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">Than=
k you,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">Pabl=
o.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">&nbs=
p;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b><span style=3D"font-s=
ize:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">Ron Bonica &lt;</sp=
an><span lang=3D"ES"><a href=3D"mailto:rbonica@juniper.net"><span lang=3D"E=
N-US" style=3D"font-size:12.0pt">rbonica@juniper.net</span></a></span><span=
 style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Friday, 10 January 2020 at 20:09<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><span lang=3D"=
ES"><a href=3D"mailto:pcamaril@cisco.com"><span lang=3D"EN-US" style=3D"fon=
t-size:12.0pt">pcamaril@cisco.com</span></a></span><span style=3D"font-size=
:12.0pt;color:black">&gt;<br>
<b>Cc: </b>&quot;</span><span lang=3D"ES"><a href=3D"mailto:spring@ietf.org=
"><span lang=3D"EN-US" style=3D"font-size:12.0pt">spring@ietf.org</span></a=
></span><span style=3D"font-size:12.0pt;color:black">&quot; &lt;</span><spa=
n lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><span lang=3D"EN-US" style=
=3D"font-size:12.0pt">spring@ietf.org</span></a></span><span style=3D"font-=
size:12.0pt;color:black">&gt;<br>
<b>Subject: </b>RE: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">So, in Section 4.1, Line=
 S03, an SRv6 node sends an ICMP Parameter Problem Message. What is the sou=
rce address in that message?<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Is it the destination ad=
dress of the offending packet (i.e., A SID)? Or is in the address of an int=
erface on the SRv6 node?<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:1.0in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b>From:</b> Pablo Camar=
illo (pcamaril) &lt;<span lang=3D"ES"><a href=3D"mailto:pcamaril@cisco.com"=
><span lang=3D"EN-US">pcamaril@cisco.com</span></a></span>&gt;
<br>
<b>Sent:</b> Friday, January 10, 2020 11:54 AM<br>
<b>To:</b> Ron Bonica &lt;<span lang=3D"ES"><a href=3D"mailto:rbonica@junip=
er.net"><span lang=3D"EN-US">rbonica@juniper.net</span></a></span>&gt;<br>
<b>Cc:</b> <span lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><span lang=
=3D"EN-US">spring@ietf.org</span></a></span><br>
<b>Subject:</b> Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">Ron=
,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">The=
re is no behavior in draft-ietf-spring-srv6-network-programming that propos=
es to encode a SID in the source address of the IPv6 header.</span><o:p></o=
:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">If =
in the future someone would propose to do such thing in another I-D; it is =
up to those authors to justify why they would want to do this, and how to e=
nsure that the processing does not break
 any other protocol. But as said, this is not in the scope of draft-ietf-sp=
ring-srv6-network-programming.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">Reg=
arding the ICMP messages:
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">SRH=
 follows RFC4443 Section 2.2 with respect to how to select the ICMP Source =
Address.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">SRv=
6 Network Programming does not change this (it simply follows the SRv6 rule=
s defined by the SRH).</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">In =
your email you refer to a possibility of future protocols breaking this. I =
don&#8217;t think that we can guess what future protocols will do, and it i=
s up to those future protocols to ensure compatibility
 with the existing standards.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">Tha=
nks,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">Pab=
lo.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><b><span style=3D"font-s=
ize:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">Ron Bonica &lt;</sp=
an><span lang=3D"ES"><a href=3D"mailto:rbonica@juniper.net"><span lang=3D"E=
N-US" style=3D"font-size:12.0pt">rbonica@juniper.net</span></a></span><span=
 style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Tuesday, 7 January 2020 at 19:07<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><span lang=3D"=
ES"><a href=3D"mailto:pcamaril@cisco.com"><span lang=3D"EN-US" style=3D"fon=
t-size:12.0pt">pcamaril@cisco.com</span></a></span><span style=3D"font-size=
:12.0pt;color:black">&gt;<br>
<b>Cc: </b>SPRING WG &lt;</span><span lang=3D"ES"><a href=3D"mailto:spring@=
ietf.org"><span lang=3D"EN-US" style=3D"font-size:12.0pt">spring@ietf.org</=
span></a></span><span style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Subject: </b>RE: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">Let me try to ask the qu=
estion another way:<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:2.0in;text-indent:-.25in=
">1)<span style=3D"font-size:7.0pt;font-family:&quot;Times New Roman&quot;,=
serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>Is it generally acceptable for a SID to appear in the source address=
 field of an IPv6 header?<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:2.0in;text-indent:-.25in=
">2)<span style=3D"font-size:7.0pt;font-family:&quot;Times New Roman&quot;,=
serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>Can an exception be made for ICMP messages?<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">I think that the answer =
to the first question is &#8220;no&#8221;, because doing so would break ICM=
P. Think about what would happen if:<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:2.0in;text-indent:-.25in=
">-<span style=3D"font-size:7.0pt;font-family:&quot;Times New Roman&quot;,s=
erif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>Node S sends a packet to Node D with a SID S as its source address.<=
o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:2.0in;text-indent:-.25in=
">-<span style=3D"font-size:7.0pt;font-family:&quot;Times New Roman&quot;,s=
erif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>Node Q is an intermediate node on the path from Node S to Node D. Fo=
r some reason, Node Q cannot forward the packet.<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:2.0in;text-indent:-.25in=
">-<span style=3D"font-size:7.0pt;font-family:&quot;Times New Roman&quot;,s=
erif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>Node Q sends an ICMP message to Node S. The ICMP destination address=
 is SID S.<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:2.0in;text-indent:-.25in=
">-<span style=3D"font-size:7.0pt;font-family:&quot;Times New Roman&quot;,s=
erif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>The ICMP message arrives at Node A<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:2.0in;text-indent:-.25in=
">-<span style=3D"font-size:7.0pt;font-family:&quot;Times New Roman&quot;,s=
erif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>Node A discards the ICMP message, because the payload is ICMP<o:p></=
o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">It might be OK to make a=
n exception for ICMP messages. This is because RFC 4443 forbids sending an =
ICMP message in response to another ICMP message. However, I am not entirel=
y sure that this is a good idea. One
 day in the future, some protocol other than ICMP may try send a response t=
o the source address of the ICMP message.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:1.5in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><b>From:</b> Pablo Camar=
illo (pcamaril) &lt;<span lang=3D"ES"><a href=3D"mailto:pcamaril@cisco.com"=
><span lang=3D"EN-US">pcamaril@cisco.com</span></a></span>&gt;
<br>
<b>Sent:</b> Tuesday, January 7, 2020 4:18 AM<br>
<b>To:</b> Ron Bonica &lt;<span lang=3D"ES"><a href=3D"mailto:rbonica@junip=
er.net"><span lang=3D"EN-US">rbonica@juniper.net</span></a></span>&gt;<br>
<b>Cc:</b> SPRING WG &lt;<span lang=3D"ES"><a href=3D"mailto:spring@ietf.or=
g"><span lang=3D"EN-US">spring@ietf.org</span></a></span>&gt;<br>
<b>Subject:</b> Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">Ron=
, </span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">It&=
#8217;s good to see agreement on the fact that SRH follows RFC4443 Section =
2.2 with respect to how the ICMP Source Address is selected.</span><o:p></o=
:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">Can=
 you please point me to the text in draft-ietf-spring-srv6-network-programm=
ing that changes the behavior below from RFC4443 Section 2.2? I believe the=
re is no such text.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">Tha=
nks,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">Pab=
lo.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"font-s=
ize:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">Ron Bonica &lt;</sp=
an><span lang=3D"ES"><a href=3D"mailto:rbonica@juniper.net"><span lang=3D"E=
N-US" style=3D"font-size:12.0pt">rbonica@juniper.net</span></a></span><span=
 style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Saturday, 21 December 2019 at 20:59<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><span lang=3D"=
ES"><a href=3D"mailto:pcamaril@cisco.com"><span lang=3D"EN-US" style=3D"fon=
t-size:12.0pt">pcamaril@cisco.com</span></a></span><span style=3D"font-size=
:12.0pt;color:black">&gt;<br>
<b>Cc: </b>&quot;</span><span lang=3D"ES"><a href=3D"mailto:spring@ietf.org=
"><span lang=3D"EN-US" style=3D"font-size:12.0pt">spring@ietf.org</span></a=
></span><span style=3D"font-size:12.0pt;color:black">&quot; &lt;</span><spa=
n lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><span lang=3D"EN-US" style=
=3D"font-size:12.0pt">spring@ietf.org</span></a></span><span style=3D"font-=
size:12.0pt;color:black">&gt;<br>
<b>Subject: </b>RE: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Section 2.2 of RFC 4443 =
offers the following options:<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&#8220;&nbsp;&nbsp; (a) =
If the message is a response to a message sent to one of the<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; node's unicast addresses, the Source Address of the reply MUST=
 be<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; that same address.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp; (b) If the =
message is a response to a message sent to any other<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; address, such as<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; - a multicast group address,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; - an anycast address implemented by the node, or<o:p></o:p></p=
>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; - a unicast address that does not belong to the node<o:p></o:p=
></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp; the Source Address of the ICMPv6 packet MUST be a unicast address<o:=
p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp; belonging to the node. &#8220;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">So, the question boils d=
own to whether you consider a SID to be one of the node&#8217;s unicast add=
resses. If so, the answer is a). If not, the answer is b).<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">So, which is it?<o:p></o=
:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Happy Holidays,<o=
:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:2.0in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b>From:</b> Pablo Camar=
illo (pcamaril) &lt;<span lang=3D"ES"><a href=3D"mailto:pcamaril@cisco.com"=
><span lang=3D"EN-US">pcamaril@cisco.com</span></a></span>&gt;
<br>
<b>Sent:</b> Friday, December 20, 2019 12:30 PM<br>
<b>To:</b> Ron Bonica &lt;<span lang=3D"ES"><a href=3D"mailto:rbonica@junip=
er.net"><span lang=3D"EN-US">rbonica@juniper.net</span></a></span>&gt;<br>
<b>Cc:</b> <span lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><span lang=
=3D"EN-US">spring@ietf.org</span></a></span><br>
<b>Subject:</b> Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Ron=
,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">I g=
uess that draft-ietf-6man-segment-routing-header does not contain any expli=
cit text about it because it is not needed.
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Ins=
tead draft-ietf-6man-segment-routing-header contains a reference to RFC4443=
 that details in section 2.2 how to select it.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">There is no text in draf=
t-ietf-spring-srv6-network-programming that changes such behavior.<o:p></o:=
p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Happy Holidays,<o:p></o:=
p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Pablo.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"font-s=
ize:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">spring &lt;</span><=
span lang=3D"ES"><a href=3D"mailto:spring-bounces@ietf.org"><span lang=3D"E=
N-US" style=3D"font-size:12.0pt">spring-bounces@ietf.org</span></a></span><=
span style=3D"font-size:12.0pt;color:black">&gt; on
 behalf of Ron Bonica &lt;</span><span lang=3D"ES"><a href=3D"mailto:rbonic=
a=3D40juniper.net@dmarc.ietf.org"><span lang=3D"EN-US" style=3D"font-size:1=
2.0pt">rbonica=3D40juniper.net@dmarc.ietf.org</span></a></span><span style=
=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Thursday, 19 December 2019 at 14:59<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><span lang=3D"=
ES"><a href=3D"mailto:pcamaril@cisco.com"><span lang=3D"EN-US" style=3D"fon=
t-size:12.0pt">pcamaril@cisco.com</span></a></span><span style=3D"font-size=
:12.0pt;color:black">&gt;, &quot;</span><span lang=3D"ES"><a href=3D"mailto=
:spring@ietf.org"><span lang=3D"EN-US" style=3D"font-size:12.0pt">spring@ie=
tf.org</span></a></span><span style=3D"font-size:12.0pt;color:black">&quot;
 &lt;</span><span lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><span lang=
=3D"EN-US" style=3D"font-size:12.0pt">spring@ietf.org</span></a></span><spa=
n style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Subject: </b>Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Can you provide a specif=
ic reference into draft-ietf-6man-segment-routing-header? I can&#8217;t fin=
d the answer to my question in there.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:2.0in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b>From:</b> Pablo Camar=
illo (pcamaril) &lt;<span lang=3D"ES"><a href=3D"mailto:pcamaril@cisco.com"=
><span lang=3D"EN-US">pcamaril@cisco.com</span></a></span>&gt;
<br>
<b>Sent:</b> Thursday, December 19, 2019 6:47 AM<br>
<b>To:</b> Ron Bonica &lt;<span lang=3D"ES"><a href=3D"mailto:rbonica@junip=
er.net"><span lang=3D"EN-US">rbonica@juniper.net</span></a></span>&gt;;
<span lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><span lang=3D"EN-US">s=
pring@ietf.org</span></a></span><br>
<b>Subject:</b> Re: SRv6 Network Programming - ICMP Source Address Selectio=
n<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Ron=
,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Thi=
s is exactly the same as in the SRH.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">The=
re is no text in draft-ietf-spring-srv6-network-programming that changes th=
is.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Che=
ers,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Pab=
lo.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"font-s=
ize:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">Ron Bonica &lt;</sp=
an><span lang=3D"ES"><a href=3D"mailto:rbonica@juniper.net"><span lang=3D"E=
N-US" style=3D"font-size:12.0pt">rbonica@juniper.net</span></a></span><span=
 style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Monday, 9 December 2019 at 23:48<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><span lang=3D"=
ES"><a href=3D"mailto:pcamaril@cisco.com"><span lang=3D"EN-US" style=3D"fon=
t-size:12.0pt">pcamaril@cisco.com</span></a></span><span style=3D"font-size=
:12.0pt;color:black">&gt;, SPRING WG &lt;</span><span lang=3D"ES"><a href=
=3D"mailto:spring@ietf.org"><span lang=3D"EN-US" style=3D"font-size:12.0pt"=
>spring@ietf.org</span></a></span><span style=3D"font-size:12.0pt;color:bla=
ck">&gt;,
 6man &lt;</span><span lang=3D"ES"><a href=3D"mailto:6man@ietf.org"><span l=
ang=3D"EN-US" style=3D"font-size:12.0pt">6man@ietf.org</span></a></span><sp=
an style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Subject: </b>RE: SRv6 Network Programming - ICMP Source Address Selectio=
n</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Section 2.2 of RFC 4443 =
offers two options. If you think that a SID is a unicast address, the first=
 option is applicable. If you think that a SID is not a unicast address, th=
e second option is applicable.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Which did you choose?<o:=
p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:2.0in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b>From:</b> Pablo Camar=
illo (pcamaril) &lt;<span lang=3D"ES"><a href=3D"mailto:pcamaril@cisco.com"=
><span lang=3D"EN-US">pcamaril@cisco.com</span></a></span>&gt;
<br>
<b>Sent:</b> Monday, December 9, 2019 10:18 AM<br>
<b>To:</b> Ron Bonica &lt;<span lang=3D"ES"><a href=3D"mailto:rbonica@junip=
er.net"><span lang=3D"EN-US">rbonica@juniper.net</span></a></span>&gt;; SPR=
ING WG &lt;<span lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><span lang=
=3D"EN-US">spring@ietf.org</span></a></span>&gt;; 6man &lt;<span lang=3D"ES=
"><a href=3D"mailto:6man@ietf.org"><span lang=3D"EN-US">6man@ietf.org</span=
></a></span>&gt;<br>
<b>Subject:</b> Re: SRv6 Network Programming - ICMP Source Address Selectio=
n<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Ron=
,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">As =
you pointed out in your email, RFC4443 Section 2.2 is very clear about how =
to select the source address.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">dra=
ft-ietf-spring-srv6-network-programming does not change this.
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Tha=
nks,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Pab=
lo.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"font-s=
ize:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">ipv6 &lt;</span><sp=
an lang=3D"ES"><a href=3D"mailto:ipv6-bounces@ietf.org"><span lang=3D"EN-US=
" style=3D"font-size:12.0pt">ipv6-bounces@ietf.org</span></a></span><span s=
tyle=3D"font-size:12.0pt;color:black">&gt; on behalf
 of Ron Bonica &lt;</span><span lang=3D"ES"><a href=3D"mailto:rbonica=3D40j=
uniper.net@dmarc.ietf.org"><span lang=3D"EN-US" style=3D"font-size:12.0pt">=
rbonica=3D40juniper.net@dmarc.ietf.org</span></a></span><span style=3D"font=
-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Friday, 6 December 2019 at 17:40<br>
<b>To: </b>SPRING WG &lt;</span><span lang=3D"ES"><a href=3D"mailto:spring@=
ietf.org"><span lang=3D"EN-US" style=3D"font-size:12.0pt">spring@ietf.org</=
span></a></span><span style=3D"font-size:12.0pt;color:black">&gt;, 6man &lt=
;</span><span lang=3D"ES"><a href=3D"mailto:6man@ietf.org"><span lang=3D"EN=
-US" style=3D"font-size:12.0pt">6man@ietf.org</span></a></span><span style=
=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Subject: </b>SRv6 Network Programming - ICMP Source Address Selection</s=
pan><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Authors,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">When an SRv6 node sends =
an ICMP message, how does it select the ICMP message&#8217;s source address=
?<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Section 2.2 of RFC 4443 =
offers two options. If you think that a SID is a unicast address, the first=
 option is applicable. If you think that a SID is not a unicast address, th=
e second option is applicable.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:2.0in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Please excuse any typos,=
 sent from my 'smart'phone.<o:p></o:p></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Please excuse any typos, =
sent from my 'smart'phone.<o:p></o:p></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Please excuse any typos, =
sent from my 'smart'phone.<o:p></o:p></p>
</div>
</body>
</html>

--_000_BN7PR05MB3938CE48494065688C53BB86AE340BN7PR05MB3938namp_--


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From: Ron Bonica <rbonica@juniper.net>
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>, "jmh@joelhalpern.com" <jmh@joelhalpern.com>
CC: "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [spring] SRv6 Network Programming - ICMP Source Address Selection
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Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Selection
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From: Ron Bonica <rbonica@juniper.net>
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Subject: Re: [spring] Introduction of draft-ietf-spring-srv6-network-programming (was Re: draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6)
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--_000_BN7PR05MB39389653758516C38E15451FAE360BN7PR05MB3938namp_
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable

Bruno,

Would you like Pablo and me to develop text offline and bring it back to th=
e mailing list? Or would you prefer us to craft the text in a few emails on=
 the mailing list?

                                                                           =
         Ron




Juniper Business Use Only
From: bruno.decraene@orange.com <bruno.decraene@orange.com>
Sent: Thursday, January 16, 2020 9:00 AM
To: Pablo Camarillo (pcamaril) <pcamaril@cisco.com>; Ron Bonica <rbonica@ju=
niper.net>
Cc: spring@ietf.org
Subject: RE: Introduction of draft-ietf-spring-srv6-network-programming (wa=
s Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advanta=
ges of SRv6)

Pablo,

Thanks for the reply.
I'm not seen explicitly what you are proposing to address Ron's comment, re=
garding the clarification of this sentence in the draft.
May I again suggest that both of you follow up to progress on a resolution =
to clarify the meaning of this sentence in the draft?

Thanks,
Bruno


From: Pablo Camarillo (pcamaril) [mailto:pcamaril@cisco.com]
Sent: Tuesday, January 14, 2020 6:43 PM
To: rbonica@juniper.net<mailto:rbonica@juniper.net>; DECRAENE Bruno TGI/OLN
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Introduction of draft-ietf-spring-srv6-network-programming (was Re=
: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages =
of SRv6)

(Updated the subject to reflect the new topic of this thread: the introduct=
ion of this draft)

Bruno,

You are correct. In essence we are saying the same thing as the 3rd line of=
 RFC8402.
A segment can represent any instruction, topological or
   service based.

For example, for service programming we have a draft-ietf-spring-sr-service=
-programming. This goes beyond mere packet routing. NET-PGM provides the ba=
se and draft-ietf-spring-sr-service-programming builds on top of that.

Thanks,
Pablo

From: "bruno.decraene@orange.com<mailto:bruno.decraene@orange.com>" <bruno.=
decraene@orange.com<mailto:bruno.decraene@orange.com>>
Date: Tuesday, 14 January 2020 at 11:02
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>, "Pablo Ca=
marillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.com>>
Cc: "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sprin=
g@ietf.org>>
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Hello Ron, Pablo,

From: Ron Bonica [mailto:rbonica@juniper.net]
Sent: Monday, January 13, 2020 9:38 PM
To: DECRAENE Bruno TGI/OLN
Cc: spring@ietf.org<mailto:spring@ietf.org>; Pablo Camarillo (pcamaril)
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Hello Bruno.

According to the network programming draft, "Network programming combines s=
egment routing functions, both simple and complex, to achieve a networking =
objective that goes beyond mere packet routing."

Sadly, the document offers little insight as to what those non-routing obje=
ctives might be.
Ron,
Thank you for elaborating on this comment. The scope of the revised comment=
 seem to me more focused and now indeed related to this document.

Ron, Pablo,
May I suggest that you both follow up to progress on a resolution on the co=
mment on this sentence?

e.g. clarify what is meant by "beyond packet routing", and/or what is exact=
ly meant by this sentence beyond what is already stated in the SR architect=
ure (which for example, but not restricted to, states that  "A segment can =
represent any instruction, topological or service based." )
If this can't be reasonably clarified, worse case could possibly be to remo=
ve this sentence or fall back to a reference to the/a SR architecture RFC/s=
ection/sentence. As of today, I don't assume that this point would be a blo=
cking point to progress that document or to delay it for a long time.


Thank you,
--Bruno



If SRv6 offers something beyond the mere packet routing capabilities of SR-=
MPLS, the network programming draft would be the most appropriate place to =
mention it. Otherwise, SRv6 is just an IPv6 version of SR-MPLS.

                                                                   Ron




Juniper Business Use Only
From: bruno.decraene@orange.com<mailto:bruno.decraene@orange.com> <bruno.de=
craene@orange.com<mailto:bruno.decraene@orange.com>>
Sent: Monday, January 13, 2020 8:12 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: spring@ietf.org<mailto:spring@ietf.org>; Pablo Camarillo (pcamaril) <pc=
amaril@cisco.com<mailto:pcamaril@cisco.com>>
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,


From: spring [mailto:spring-bounces@ietf.org] On Behalf Of Ron Bonica
Sent: Friday, January 10, 2020 8:14 PM
To: Pablo Camarillo (pcamaril)
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Chairs,

I believe that we have two independent requests for a comparison of the ben=
efits of SRv6 over SR-MPLS in the network programming draft.

A comparison of the benefits of SRv6 over SR-MPLS is one thing that could p=
ossibly be discussed if there is interest from the WG.
E.g. to help network provider make a choice, or in the context of "beyond S=
Rv6" to help the WG identify the benefit/cost analysis of existing solution=
s and what we want to achieve with new/extensions to SR data planes.

But why do you think that this would belong to draft-ietf-spring-srv6-netwo=
rk-programming?

Thanks,
--Bruno


                                                            Ron




Juniper Business Use Only
From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> On B=
ehalf Of Pablo Camarillo (pcamaril)
Sent: Friday, January 10, 2020 11:55 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,

If you want to discuss your analysis please let's do so in a separate email=
 thread out of the context of the Working Group Last Call of draft-ietf-spr=
ing-srv6-network-programming.

As I said before: draft-ietf-spring-srv6-network-programming is a Standards=
 Track document and this topic is not about any standardization, hence out =
of scope of this document.

Same applies to other content (e.g. illustrations) that was formerly in net=
work programming and we moved to a separate draft since it was not standard=
izing anything at all and was merely informative.

Thanks,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Tuesday, 7 January 2020 at 19:17
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Pablo,

RFC 8354 reinforces my analysis in https://mailarchive.ietf.org/arch/msg/sp=
ring/3WGuQumIfcmH281nwq3s9Un6raI<https://urldefense.com/v3/__https:/mailarc=
hive.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6raI__;!!NEt6yMaO-gk!S=
olNvh35q4NS-PTVWOxXAzbTnMHltfvPWi_OSjhMYkmm_NucR6imYrrLvc35Kat6$>. Are you =
saying that you agree with this analysis?

                                             Ron






Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Tuesday, January 7, 2020 4:17 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,

SPRING has already done this work and documented the SRv6 use-cases in RFC8=
354 before progressing with the SRv6 standardization.

Further on, draft-ietf-spring-srv6-network-programming is a Standards Track=
 document.
I fail to see how a cite from RFC8354 or any other text on "SRv6 vs SR-MPLS=
" standardises anything at all.
Note that we have already removed text from draft-ietf-spring-srv6-network-=
programming (e.g. illustrations) because it was not standardising anything.

Thank you for the suggestion,
Pablo.

From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> on b=
ehalf of Ron Bonica <rbonica=3D40juniper.net@dmarc.ietf.org<mailto:rbonica=
=3D40juniper.net@dmarc.ietf.org>>
Date: Monday, 30 December 2019 at 11:08
To: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: [spring] draft-ietf-spring-srv6-network-programming: Relative adva=
ntages of SRv6

Pablo,

Would you consider adding a short section to the draft explaining the relat=
ive advantages of SRv6 over SR-MPLS? This section would explain why an netw=
ork operator would deploy SRv6 instead of SR-MPLS.

                                                                           =
              Ron



Juniper Business Use Only

Please excuse any typos, sent from my 'smart'phone.

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Orange decline toute responsabilite si ce message a ete altere, deforme ou =
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This message and its attachments may contain confidential or privileged inf=
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This message and its attachments may contain confidential or privileged inf=
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If you have received this email in error, please notify the sender and dele=
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<div class=3D"WordSection1">
<p class=3D"MsoNormal">Bruno,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Would you like Pablo and me to develop text offline =
and bring it back to the mailing list? Or would you prefer us to craft the =
text in a few emails on the mailing list?<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ron=
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0in;margin=
-bottom:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b>From:</b> bruno.decraene@orange.com &lt;bruno.dec=
raene@orange.com&gt;
<br>
<b>Sent:</b> Thursday, January 16, 2020 9:00 AM<br>
<b>To:</b> Pablo Camarillo (pcamaril) &lt;pcamaril@cisco.com&gt;; Ron Bonic=
a &lt;rbonica@juniper.net&gt;<br>
<b>Cc:</b> spring@ietf.org<br>
<b>Subject:</b> RE: Introduction of draft-ietf-spring-srv6-network-programm=
ing (was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6)<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span lang=3D"FR" style=3D"color:#1F497D">Pablo,<o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"FR" style=3D"color:#1F497D"><o:p>&nbsp=
;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Thanks for the reply.<=
o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">I&#8217;m not seen exp=
licitly what you are proposing to address Ron&#8217;s comment, regarding th=
e clarification of this sentence in the draft.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">May I again suggest th=
at both of you follow up to progress on a resolution to clarify the meaning=
 of this sentence in the draft?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Thanks,<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Bruno</span><o:p></o:p=
></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><b><span style=3D"font-=
size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">From:</span></b><spa=
n style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif"> Pab=
lo Camarillo (pcamaril) [<a href=3D"mailto:pcamaril@cisco.com">mailto:pcama=
ril@cisco.com</a>]
<br>
<b>Sent:</b> Tuesday, January 14, 2020 6:43 PM<br>
<b>To:</b> <a href=3D"mailto:rbonica@juniper.net">rbonica@juniper.net</a>; =
DECRAENE Bruno TGI/OLN<br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><br>
<b>Subject:</b> Introduction of draft-ietf-spring-srv6-network-programming =
(was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative adva=
ntages of SRv6)<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB">(U=
pdated the subject to reflect the new topic of this thread: the introductio=
n of this draft)<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB"><o=
:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB">Br=
uno,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB"><o=
:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB">Yo=
u are correct. In essence we are saying the same thing as the 3<sup>rd</sup=
> line of RFC8402.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span style=3D"font-siz=
e:10.0pt;font-family:&quot;Courier New&quot;;color:black">A segment can rep=
resent any instruction, topological or<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span style=3D"font-siz=
e:10.0pt;font-family:&quot;Courier New&quot;;color:black">&nbsp;&nbsp; serv=
ice based.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB"><o=
:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB">Fo=
r example, for service programming we have a draft-ietf-spring-sr-service-p=
rogramming. This goes beyond mere packet routing. NET-PGM provides the base=
 and draft-ietf-spring-sr-service-programming
 builds on top of that.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB"><o=
:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB">Th=
anks,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB">Pa=
blo<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-GB"><o=
:p>&nbsp;</o:p></span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><b><span style=3D"font-=
size:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">&quot;<a href=3D"ma=
ilto:bruno.decraene@orange.com">bruno.decraene@orange.com</a>&quot; &lt;<a =
href=3D"mailto:bruno.decraene@orange.com">bruno.decraene@orange.com</a>&gt;=
<br>
<b>Date: </b>Tuesday, 14 January 2020 at 11:02<br>
<b>To: </b>Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;, &quot;Pablo Camarillo (pcamaril)&quot; &lt;<a href=3D"ma=
ilto:pcamaril@cisco.com">pcamaril@cisco.com</a>&gt;<br>
<b>Cc: </b>&quot;<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&quo=
t; &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&gt;<br>
<b>Subject: </b>RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><o:p>&nbsp;</o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span style=3D"color:#1=
F497D">Hello Ron, Pablo,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span style=3D"color:#1=
F497D">&nbsp;</span><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><b><span style=3D"font=
-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">From:</span></b><sp=
an style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif"> Ro=
n Bonica [<a href=3D"mailto:rbonica@juniper.net">mailto:rbonica@juniper.net=
</a>]
<br>
<b>Sent:</b> Monday, January 13, 2020 9:38 PM<br>
<b>To:</b> DECRAENE Bruno TGI/OLN<br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>; Pablo Ca=
marillo (pcamaril)<br>
<b>Subject:</b> RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6</span><o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt">Hello Bruno.<o:p></o:p=
></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt">According to the netwo=
rk programming draft, &#8220;Network programming combines segment routing f=
unctions, both simple and complex, to achieve a networking objective that g=
oes beyond mere packet routing.&#8221;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt">Sadly, the document of=
fers little insight as to what those non-routing objectives might be.<o:p><=
/o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span style=3D"color:#1=
F497D">Ron,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span style=3D"color:#1=
F497D">Thank you for elaborating on this comment. The scope of the revised =
comment seem to me more focused and now indeed related to this document.</s=
pan><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span style=3D"color:#1=
F497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span style=3D"color:#1=
F497D">Ron, Pablo,
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span style=3D"color:#1=
F497D">May I suggest that you both follow up to progress on a resolution on=
 the comment on this sentence?</span><o:p></o:p></p>
<pre style=3D"margin-left:71.4pt"><span style=3D"color:#1F497D">e.g. clarif=
y what is meant by &#8220;beyond packet routing&#8221;, and/or what is exac=
tly meant by this sentence beyond what is already stated in the SR architec=
ture (which for example, but not restricted to, states that</span><span sty=
le=3D"font-size:10.0pt;color:#1F497D">&nbsp; &#8220;</span><span style=3D"f=
ont-size:10.0pt;font-family:&quot;Courier New&quot;">A segment can represen=
t any instruction, topological or service based.&#8221;</span><span style=
=3D"font-size:10.0pt;color:#1F497D"> )</span><span style=3D"font-size:10.0p=
t;font-family:&quot;Courier New&quot;"><o:p></o:p></span></pre>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span style=3D"color:#1=
F497D">If this can&#8217;t be reasonably clarified, worse case could possib=
ly be to remove this sentence or fall back to a reference to the/a SR archi=
tecture RFC/section/sentence. As of today, I
 don&#8217;t assume that this point would be a blocking point to progress t=
hat document or to delay it for a long time.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span style=3D"color:#1=
F497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span style=3D"color:#1=
F497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span style=3D"color:#1=
F497D">Thank you,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span style=3D"color:#1=
F497D">--Bruno</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span style=3D"color:#1=
F497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span style=3D"color:#1=
F497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt">If SRv6 offers somethi=
ng beyond the mere packet routing capabilities of SR-MPLS, the network prog=
ramming draft would be the most appropriate place to mention it. Otherwise,=
 SRv6 is just an IPv6 version of SR-MPLS.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt">&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:0in;margin-right:0in;margin-bottom:0in;margin-left:106.8pt;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><b>From:</b> <a href=
=3D"mailto:bruno.decraene@orange.com">
bruno.decraene@orange.com</a> &lt;<a href=3D"mailto:bruno.decraene@orange.c=
om">bruno.decraene@orange.com</a>&gt;
<br>
<b>Sent:</b> Monday, January 13, 2020 8:12 AM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;<br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>; Pablo Ca=
marillo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco.com">pcamaril@cisco=
.com</a>&gt;<br>
<b>Subject:</b> RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span style=3D"color:#=
1F497D">Ron,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span style=3D"color:#=
1F497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span style=3D"color:#=
1F497D">&nbsp;</span><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><b><span style=3D"font=
-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">From:</span></b><sp=
an style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif"> sp=
ring [</span><span lang=3D"ES"><a href=3D"mailto:spring-bounces@ietf.org"><=
span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot=
;,sans-serif">mailto:spring-bounces@ietf.org</span></a></span><span style=
=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">]
<b>On Behalf Of </b>Ron Bonica<br>
<b>Sent:</b> Friday, January 10, 2020 8:14 PM<br>
<b>To:</b> Pablo Camarillo (pcamaril)<br>
<b>Cc:</b> </span><span lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><spa=
n lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,s=
ans-serif">spring@ietf.org</span></a></span><span style=3D"font-size:10.0pt=
;font-family:&quot;Tahoma&quot;,sans-serif"><br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6</span><o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt">Chairs,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt">I believe that we have=
 two independent requests for a comparison of the benefits of SRv6 over SR-=
MPLS in the network programming draft.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span style=3D"color:#=
1F497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span style=3D"color:#=
1F497D">A comparison of the benefits of SRv6 over SR-MPLS is one thing that=
 could possibly be discussed if there is interest from the WG.</span><o:p><=
/o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span style=3D"color:#=
1F497D">E.g. to help network provider make a choice, or in the context of &=
#8220;beyond SRv6&#8221; to help the WG identify the benefit/cost analysis =
of existing solutions and what we want to achieve
 with new/extensions to SR data planes. </span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span style=3D"color:#=
1F497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span style=3D"color:#=
1F497D">But why do you think that this would belong to draft-ietf-spring-sr=
v6-network-programming?
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span style=3D"color:#=
1F497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span style=3D"color:#=
1F497D">Thanks,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span style=3D"color:#=
1F497D">--Bruno</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span style=3D"color:#=
1F497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt">&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:0in;margin-right:0in;margin-bottom:0in;margin-left:142.2pt;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><b>From:</b> spring &l=
t;<span lang=3D"ES"><a href=3D"mailto:spring-bounces@ietf.org"><span lang=
=3D"EN-US">spring-bounces@ietf.org</span></a></span>&gt;
<b>On Behalf Of </b>Pablo Camarillo (pcamaril)<br>
<b>Sent:</b> Friday, January 10, 2020 11:55 AM<br>
<b>To:</b> Ron Bonica &lt;<span lang=3D"ES"><a href=3D"mailto:rbonica@junip=
er.net"><span lang=3D"EN-US">rbonica@juniper.net</span></a></span>&gt;<br>
<b>Cc:</b> <span lang=3D"ES"><a href=3D"mailto:spring@ietf.org"><span lang=
=3D"EN-US">spring@ietf.org</span></a></span><br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-GB">R=
on, </span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt">If you want to discuss=
 your analysis please let&#8217;s do so in a separate email thread out of t=
he context of the Working Group Last Call of draft-ietf-spring-srv6-network=
-programming.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt">As I said before: <spa=
n lang=3D"EN-GB">
draft-ietf-spring-srv6-network-programming is a Standards Track document an=
d this topic is not about any standardization, hence out of scope of this d=
ocument.
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-GB">&=
nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-GB">S=
ame applies to other content (e.g. illustrations) that was formerly in netw=
ork programming and we moved to a separate draft since it was not standardi=
zing anything at all and was merely informative.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-GB">&=
nbsp;&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-GB">T=
hanks,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-GB">P=
ablo.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-GB" s=
tyle=3D"font-size:24.0pt">&nbsp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"font-s=
ize:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">Ron Bonica &lt;</sp=
an><span lang=3D"ES"><a href=3D"mailto:rbonica@juniper.net"><span lang=3D"E=
N-US" style=3D"font-size:12.0pt">rbonica@juniper.net</span></a></span><span=
 style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Tuesday, 7 January 2020 at 19:17<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><span lang=3D"=
ES"><a href=3D"mailto:pcamaril@cisco.com"><span lang=3D"EN-US" style=3D"fon=
t-size:12.0pt">pcamaril@cisco.com</span></a></span><span style=3D"font-size=
:12.0pt;color:black">&gt;<br>
<b>Cc: </b>SPRING WG &lt;</span><span lang=3D"ES"><a href=3D"mailto:spring@=
ietf.org"><span lang=3D"EN-US" style=3D"font-size:12.0pt">spring@ietf.org</=
span></a></span><span style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Subject: </b>RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">RFC 8354 reinforces my a=
nalysis in
<span lang=3D"ES"><a href=3D"https://urldefense.com/v3/__https:/mailarchive=
.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6raI__;!!NEt6yMaO-gk!SolNv=
h35q4NS-PTVWOxXAzbTnMHltfvPWi_OSjhMYkmm_NucR6imYrrLvc35Kat6$"><span lang=3D=
"EN-US">https://mailarchive.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9U=
n6raI</span></a></span>.
 Are you saying that you agree with this analysis?<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:2.0in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b>From:</b> Pablo Camar=
illo (pcamaril) &lt;<span lang=3D"ES"><a href=3D"mailto:pcamaril@cisco.com"=
><span lang=3D"EN-US">pcamaril@cisco.com</span></a></span>&gt;
<br>
<b>Sent:</b> Tuesday, January 7, 2020 4:17 AM<br>
<b>To:</b> Ron Bonica &lt;<span lang=3D"ES"><a href=3D"mailto:rbonica@junip=
er.net"><span lang=3D"EN-US">rbonica@juniper.net</span></a></span>&gt;<br>
<b>Cc:</b> SPRING WG &lt;<span lang=3D"ES"><a href=3D"mailto:spring@ietf.or=
g"><span lang=3D"EN-US">spring@ietf.org</span></a></span>&gt;<br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Ron=
,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">SPR=
ING has already done this work and documented the SRv6 use-cases in RFC8354=
 before progressing with the SRv6 standardization.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Fur=
ther on, draft-ietf-spring-srv6-network-programming is a Standards Track do=
cument.
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">I f=
ail to see how a cite from RFC8354 or any other text on &#8220;SRv6 vs SR-M=
PLS&#8221; standardises anything at all.
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Not=
e that we have already removed text from draft-ietf-spring-srv6-network-pro=
gramming (e.g. illustrations) because it was not standardising anything.</s=
pan><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Tha=
nk you for the suggestion,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Pab=
lo.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"font-s=
ize:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">spring &lt;</span><=
span lang=3D"ES"><a href=3D"mailto:spring-bounces@ietf.org"><span lang=3D"E=
N-US" style=3D"font-size:12.0pt">spring-bounces@ietf.org</span></a></span><=
span style=3D"font-size:12.0pt;color:black">&gt; on
 behalf of Ron Bonica &lt;</span><span lang=3D"ES"><a href=3D"mailto:rbonic=
a=3D40juniper.net@dmarc.ietf.org"><span lang=3D"EN-US" style=3D"font-size:1=
2.0pt">rbonica=3D40juniper.net@dmarc.ietf.org</span></a></span><span style=
=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Monday, 30 December 2019 at 11:08<br>
<b>To: </b>SPRING WG &lt;</span><span lang=3D"ES"><a href=3D"mailto:spring@=
ietf.org"><span lang=3D"EN-US" style=3D"font-size:12.0pt">spring@ietf.org</=
span></a></span><span style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Subject: </b>[spring] draft-ietf-spring-srv6-network-programming: Relati=
ve advantages of SRv6</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Would you consider addin=
g a short section to the draft explaining the relative advantages of SRv6 o=
ver SR-MPLS? This section would explain why an network operator would deplo=
y SRv6 instead of SR-MPLS.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp; &nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:2.0in;margin-bottom:=
.0001pt;text-align:center;margin-bottom:..0001pt">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div id=3D"ms-outlook-mobile-signature">
<div>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt">Please excuse any typo=
s, sent from my 'smart'phone.<o:p></o:p></p>
</div>
<pre style=3D"margin-left:106.8pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">______________________________________________=
___________________________________________________________________________=
<o:p></o:p></span></pre>
<pre style=3D"margin-left:106.8pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">&nbsp;<o:p></o:p></span></pre>
<pre style=3D"margin-left:106.8pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">Ce message et ses pieces jointes peuvent conte=
nir des informations confidentielles ou privilegiees et ne doivent donc<o:p=
></o:p></span></pre>
<pre style=3D"margin-left:106.8pt"><span lang=3D"ES" style=3D"font-size:10.=
0pt;font-family:&quot;Courier New&quot;">pas etre diffuses, exploites ou co=
pies sans autorisation. Si vous avez recu ce message par erreur, veuillez l=
e signaler<o:p></o:p></span></pre>
<pre style=3D"margin-left:106.8pt"><span lang=3D"ES" style=3D"font-size:10.=
0pt;font-family:&quot;Courier New&quot;">a l'expediteur et le detruire ains=
i que les pieces jointes. Les messages electroniques etant susceptibles d'a=
lteration,<o:p></o:p></span></pre>
<pre style=3D"margin-left:106.8pt"><span lang=3D"ES" style=3D"font-size:10.=
0pt;font-family:&quot;Courier New&quot;">Orange decline toute responsabilit=
e si ce message a ete altere, deforme ou falsifie. Merci.<o:p></o:p></span>=
</pre>
<pre style=3D"margin-left:106.8pt"><span lang=3D"ES" style=3D"font-size:10.=
0pt;font-family:&quot;Courier New&quot;">&nbsp;<o:p></o:p></span></pre>
<pre style=3D"margin-left:106.8pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">This message and its attachments may contain c=
onfidential or privileged information that may be protected by law;<o:p></o=
:p></span></pre>
<pre style=3D"margin-left:106.8pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">they should not be distributed, used or copied=
 without authorisation.<o:p></o:p></span></pre>
<pre style=3D"margin-left:106.8pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">If you have received this email in error, plea=
se notify the sender and delete this message and its attachments.<o:p></o:p=
></span></pre>
<pre style=3D"margin-left:106.8pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">As emails may be altered, Orange is not liable=
 for messages that have been modified, changed or falsified.<o:p></o:p></sp=
an></pre>
<pre style=3D"margin-left:106.8pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">Thank you.<o:p></o:p></span></pre>
<pre style=3D"margin-left:71.4pt"><span style=3D"font-size:10.0pt;font-fami=
ly:&quot;Courier New&quot;">_______________________________________________=
__________________________________________________________________________<=
o:p></o:p></span></pre>
<pre style=3D"margin-left:71.4pt"><span style=3D"font-size:10.0pt;font-fami=
ly:&quot;Courier New&quot;"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:71.4pt"><span style=3D"font-size:10.0pt;font-fami=
ly:&quot;Courier New&quot;">Ce message et ses pieces jointes peuvent conten=
ir des informations confidentielles ou privilegiees et ne doivent donc<o:p>=
</o:p></span></pre>
<pre style=3D"margin-left:71.4pt"><span lang=3D"ES" style=3D"font-size:10.0=
pt;font-family:&quot;Courier New&quot;">pas etre diffuses, exploites ou cop=
ies sans autorisation. Si vous avez recu ce message par erreur, veuillez le=
 signaler<o:p></o:p></span></pre>
<pre style=3D"margin-left:71.4pt"><span lang=3D"ES" style=3D"font-size:10.0=
pt;font-family:&quot;Courier New&quot;">a l'expediteur et le detruire ainsi=
 que les pieces jointes. Les messages electroniques etant susceptibles d'al=
teration,<o:p></o:p></span></pre>
<pre style=3D"margin-left:71.4pt"><span lang=3D"ES" style=3D"font-size:10.0=
pt;font-family:&quot;Courier New&quot;">Orange decline toute responsabilite=
 si ce message a ete altere, deforme ou falsifie. Merci.<o:p></o:p></span><=
/pre>
<pre style=3D"margin-left:71.4pt"><span lang=3D"ES" style=3D"font-size:10.0=
pt;font-family:&quot;Courier New&quot;"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:71.4pt"><span style=3D"font-size:10.0pt;font-fami=
ly:&quot;Courier New&quot;">This message and its attachments may contain co=
nfidential or privileged information that may be protected by law;<o:p></o:=
p></span></pre>
<pre style=3D"margin-left:71.4pt"><span style=3D"font-size:10.0pt;font-fami=
ly:&quot;Courier New&quot;">they should not be distributed, used or copied =
without authorisation.<o:p></o:p></span></pre>
<pre style=3D"margin-left:71.4pt"><span style=3D"font-size:10.0pt;font-fami=
ly:&quot;Courier New&quot;">If you have received this email in error, pleas=
e notify the sender and delete this message and its attachments.<o:p></o:p>=
</span></pre>
<pre style=3D"margin-left:71.4pt"><span style=3D"font-size:10.0pt;font-fami=
ly:&quot;Courier New&quot;">As emails may be altered, Orange is not liable =
for messages that have been modified, changed or falsified.<o:p></o:p></spa=
n></pre>
<pre style=3D"margin-left:71.4pt"><span lang=3D"ES" style=3D"font-size:10.0=
pt;font-family:&quot;Courier New&quot;">Thank you.<o:p></o:p></span></pre>
<pre><span lang=3D"FR">____________________________________________________=
_____________________________________________________________________<o:p><=
/o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">Ce message et ses pieces jointes peuvent contenir de=
s informations confidentielles ou privilegiees et ne doivent donc<o:p></o:p=
></span></pre>
<pre><span lang=3D"FR">pas etre diffuses, exploites ou copies sans autorisa=
tion. Si vous avez recu ce message par erreur, veuillez le signaler<o:p></o=
:p></span></pre>
<pre><span lang=3D"FR">a l'expediteur et le detruire ainsi que les pieces j=
ointes. Les messages electroniques etant susceptibles d'alteration,<o:p></o=
:p></span></pre>
<pre><span lang=3D"FR">Orange decline toute responsabilite si ce message a =
ete altere, deforme ou falsifie. Merci.<o:p></o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">This message and its attachments may contain confide=
ntial or privileged information that may be protected by law;<o:p></o:p></s=
pan></pre>
<pre><span lang=3D"FR">they should not be distributed, used or copied witho=
ut authorisation.<o:p></o:p></span></pre>
<pre><span lang=3D"FR">If you have received this email in error, please not=
ify the sender and delete this message and its attachments.<o:p></o:p></spa=
n></pre>
<pre><span lang=3D"FR">As emails may be altered, Orange is not liable for m=
essages that have been modified, changed or falsified.<o:p></o:p></span></p=
re>
<pre><span lang=3D"FR">Thank you.<o:p></o:p></span></pre>
</div>
</body>
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From: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
To: Ron Bonica <rbonica@juniper.net>, "bruno.decraene@orange.com" <bruno.decraene@orange.com>
CC: "spring@ietf.org" <spring@ietf.org>
Thread-Topic: Introduction of draft-ietf-spring-srv6-network-programming (was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6)
Thread-Index: AQHVywH+3Jf5XhoeB0K/+c4pi0dOsaftUttwgAAiRsCAADWrgA==
Date: Thu, 16 Jan 2020 18:09:00 +0000
Message-ID: <210E1F96-0BE0-4A19-95AB-97E0F6BE7098@cisco.com>
References: <53C3A95E-DDE4-45BA-B9C7-5BAE2A0B00CD@cisco.com> <18023_1579183197_5E206C5D_18023_299_8_53C29892C857584299CBF5D05346208A48D5BC12@OPEXCAUBM43.corporate.adroot.infra.ftgroup> <BN7PR05MB39389653758516C38E15451FAE360@BN7PR05MB3938.namprd05.prod.outlook.com>
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From: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
To: Ron Bonica <rbonica@juniper.net>
CC: "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [spring] SRv6 Network Programming - ICMP Source Address Selection
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References: <B91AA98B-F605-4C6B-AFAF-C9FDEA703460@cisco.com> <BN7PR05MB5699B27F84C5E8051028D97AAE2C0@BN7PR05MB5699.namprd05.prod.outlook.com> <44F0ED35-5684-4594-BB29-BDCC193284A4@cisco.com> <BN7PR05MB39386FA6A2666370FF07FAA7AE3F0@BN7PR05MB3938.namprd05.prod.outlook.com> <CEB721B4-DA87-4838-BA6D-499D38A33936@cisco.com> <BN7PR05MB3938FEE1C2F83C919D4CFA2AAE380@BN7PR05MB3938.namprd05.prod.outlook.com> <DF0DC4A0-37D7-4943-BFC2-D152BB9E8D38@cisco.com> <BN7PR05MB39381FB65ED5B034D21267F0AE350@BN7PR05MB3938.namprd05.prod.outlook.com> <94AA5F04-2458-42B0-AA7E-7039EA795C1C@cisco.com> <BN7PR05MB3938CE48494065688C53BB86AE340@BN7PR05MB3938.namprd05.prod.outlook.com> <EAA17BE9-8EE2-43E0-B7AC-62CFCD768305@cisco.com>
In-Reply-To: <EAA17BE9-8EE2-43E0-B7AC-62CFCD768305@cisco.com>
From: Erik Kline <ek.ietf@gmail.com>
Date: Thu, 16 Jan 2020 13:38:09 -0800
Message-ID: <CAMGpriW2Ln17x6T2z7XN3e1hHotjfJrxCN14myMJq4LtC8MTDg@mail.gmail.com>
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
Cc: Ron Bonica <rbonica@juniper.net>, "spring@ietf.org" <spring@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/xJsKNS9oTZqzmfQxq_lcgk9iebs>
Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Selection
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Seems like you're saying that if the SID is not an anycast SID it is as
though it were unicast and therefore 4443/2.2/a applies, i.e. the SID is
the source address for the ICMP error message.

If the SID is an anycast SID, then the router must follow 4443/2.2/b and
chose another unicast address associated with the node as the ICMP source
address.

Is that correct, and complete?

On Thu, Jan 16, 2020 at 10:25 AM Pablo Camarillo (pcamaril) <
pcamaril@cisco.com> wrote:

> Ron,
>
>
>
> No, you cannot say that. As I just mentioned in my previous email: anycas=
t
> SIDs.
>
>
>
> In your implementation you need to strictly follow RFC4443 section 2.2 fo=
r
> selecting the ICMP Message source address. This implies that you need to
> develop both options introduced in RFC4443 together with the logic to be
> able to choose in between A and B.
>
>
>
> Cheers,
>
> Pablo.
>
>
>
> *From: *spring <spring-bounces@ietf.org> on behalf of Ron Bonica <rbonica=
=3D
> 40juniper.net@dmarc.ietf.org>
> *Date: *Tuesday, 14 January 2020 at 20:28
> *To: *"Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
> *Cc: *"spring@ietf.org" <spring@ietf.org>
> *Subject: *Re: [spring] SRv6 Network Programming - ICMP Source Address
> Selection
>
>
>
> Pablo,
>
>
>
> Can we unequivocally say that all of the SIDs mentioned in the PGM
> document are unicast addresses?
>
>
>
>
> Ron
>
>
>
>
>
>
>
> Juniper Business Use Only
>
> *From:* Pablo Camarillo (pcamaril) <pcamaril@cisco.com>
> *Sent:* Tuesday, January 14, 2020 12:44 PM
> *To:* Ron Bonica <rbonica@juniper.net>
> *Cc:* spring@ietf.org
> *Subject:* Re: [spring] SRv6 Network Programming - ICMP Source Address
> Selection
>
>
>
> Ron,
>
>
>
> As a matter of fact we cannot =E2=80=9Cunequivocally state that a SID is =
a unicast
> address=E2=80=9D always. Simple reason: RFC8402 - =E2=80=9C3.3.  IGP-Anyc=
ast Segment
> (Anycast-SID)=E2=80=9D.
>
>
>
> Cheers,
>
> Pablo.
>
>
>
> *From: *Ron Bonica <rbonica@juniper.net>
> *Date: *Monday, 13 January 2020 at 20:41
> *To: *"Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
> *Cc: *"spring@ietf.org" <spring@ietf.org>
> *Subject: *RE: [spring] SRv6 Network Programming - ICMP Source Address
> Selection
>
>
>
> Pablo,
>
>
>
> The problem isn=E2=80=99t a statement in the network programming draft. I=
t is an
> omission in the network programming draft.
>
>
>
> If the network programming draft unequivocally stated that a SID is a
> unicast address of the instantiating node, the following text from RFC 44=
43
> would apply:
>
>
>
> =E2=80=9CIf the message is a response to a message sent to one of the nod=
e's
> unicast addresses, the Source Address of the reply MUST be  that same
> address.=E2=80=9D
>
>
>
> If the network programming draft unequivocally stated that a SID is a not
> unicast address of the instantiating node, the following text from RFC 44=
43
> would apply:
>
>
>
> If the message is a response to a message sent to any other address, the
> Source Address of the ICMPv6 packet MUST be a unicast address belonging t=
o
> the node.
>
>
>
>
>                                                                          =
                      Ron
>
>
>
>
>
> Juniper Business Use Only
>
> *From:* Pablo Camarillo (pcamaril) <pcamaril@cisco.com>
> *Sent:* Monday, January 13, 2020 12:31 PM
> *To:* Ron Bonica <rbonica@juniper.net>
> *Cc:* spring@ietf.org
> *Subject:* Re: [spring] SRv6 Network Programming - ICMP Source Address
> Selection
>
>
>
> Ron,
>
>
>
> You cannot pre-select or enforce one of the two options you refer to belo=
w.
>
>
>
> The ICMP behaviors/considerations for SRv6 NET-PGM are the same as in the
> SRH.
>
> It boils down to: when you generate an ICMP Parameter Problem Message you
> follow the logic described in RFC4443 section 2.2 to choose the source
> address of the packet.
>
> RFC4443 offers two options A and B.
>
> In your implementation you need to develop both options and depending on
> the type of address you will choose either A or B. It is not possible to
> create an implementation shortcut and pre-select/enforce only one of them=
.
>
>
>
> Can you please point me to the text in
> draft-ietf-spring-srv6-network-programming that suggests that the ICMP
> considerations are changed with respect to the SRH? I believe there is no=
ne.
>
>
>
> Thank you,
>
> Pablo.
>
>
>
> *From: *Ron Bonica <rbonica@juniper.net>
> *Date: *Friday, 10 January 2020 at 20:09
> *To: *"Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
> *Cc: *"spring@ietf.org" <spring@ietf.org>
> *Subject: *RE: [spring] SRv6 Network Programming - ICMP Source Address
> Selection
>
>
>
> Pablo,
>
>
>
> So, in Section 4.1, Line S03, an SRv6 node sends an ICMP Parameter Proble=
m
> Message. What is the source address in that message?
>
>
>
> Is it the destination address of the offending packet (i.e., A SID)? Or i=
s
> in the address of an interface on the SRv6 node?
>
>
>
>
> Ron
>
>
>
>
>
>
>
> Juniper Business Use Only
>
> *From:* Pablo Camarillo (pcamaril) <pcamaril@cisco.com>
> *Sent:* Friday, January 10, 2020 11:54 AM
> *To:* Ron Bonica <rbonica@juniper.net>
> *Cc:* spring@ietf.org
> *Subject:* Re: [spring] SRv6 Network Programming - ICMP Source Address
> Selection
>
>
>
> Ron,
>
>
>
> There is no behavior in draft-ietf-spring-srv6-network-programming that
> proposes to encode a SID in the source address of the IPv6 header.
>
>
>
> If in the future someone would propose to do such thing in another I-D; i=
t
> is up to those authors to justify why they would want to do this, and how
> to ensure that the processing does not break any other protocol. But as
> said, this is not in the scope of
> draft-ietf-spring-srv6-network-programming.
>
>
>
> Regarding the ICMP messages:
>
> SRH follows RFC4443 Section 2.2 with respect to how to select the ICMP
> Source Address.
>
> SRv6 Network Programming does not change this (it simply follows the SRv6
> rules defined by the SRH).
>
>
>
> In your email you refer to a possibility of future protocols breaking
> this. I don=E2=80=99t think that we can guess what future protocols will =
do, and it
> is up to those future protocols to ensure compatibility with the existing
> standards.
>
>
>
> Thanks,
>
> Pablo.
>
>
>
> *From: *Ron Bonica <rbonica@juniper.net>
> *Date: *Tuesday, 7 January 2020 at 19:07
> *To: *"Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
> *Cc: *SPRING WG <spring@ietf.org>
> *Subject: *RE: [spring] SRv6 Network Programming - ICMP Source Address
> Selection
>
>
>
> Pablo,
>
>
>
> Let me try to ask the question another way:
>
>
>
> 1)      Is it generally acceptable for a SID to appear in the source
> address field of an IPv6 header?
>
> 2)      Can an exception be made for ICMP messages?
>
>
>
> I think that the answer to the first question is =E2=80=9Cno=E2=80=9D, be=
cause doing so
> would break ICMP. Think about what would happen if:
>
>
>
> -          Node S sends a packet to Node D with a SID S as its source
> address.
>
> -          Node Q is an intermediate node on the path from Node S to Node
> D. For some reason, Node Q cannot forward the packet.
>
> -          Node Q sends an ICMP message to Node S. The ICMP destination
> address is SID S.
>
> -          The ICMP message arrives at Node A
>
> -          Node A discards the ICMP message, because the payload is ICMP
>
>
>
> It might be OK to make an exception for ICMP messages. This is because RF=
C
> 4443 forbids sending an ICMP message in response to another ICMP message.
> However, I am not entirely sure that this is a good idea. One day in the
> future, some protocol other than ICMP may try send a response to the sour=
ce
> address of the ICMP message.
>
>
>
>
> Ron
>
>
>
>
>
>
>
> Juniper Business Use Only
>
> *From:* Pablo Camarillo (pcamaril) <pcamaril@cisco.com>
> *Sent:* Tuesday, January 7, 2020 4:18 AM
> *To:* Ron Bonica <rbonica@juniper.net>
> *Cc:* SPRING WG <spring@ietf.org>
> *Subject:* Re: [spring] SRv6 Network Programming - ICMP Source Address
> Selection
>
>
>
> Ron,
>
>
>
> It=E2=80=99s good to see agreement on the fact that SRH follows RFC4443 S=
ection
> 2.2 with respect to how the ICMP Source Address is selected.
>
>
>
> Can you please point me to the text in
> draft-ietf-spring-srv6-network-programming that changes the behavior belo=
w
> from RFC4443 Section 2.2? I believe there is no such text.
>
>
>
> Thanks,
>
> Pablo.
>
>
>
> *From: *Ron Bonica <rbonica@juniper.net>
> *Date: *Saturday, 21 December 2019 at 20:59
> *To: *"Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
> *Cc: *"spring@ietf.org" <spring@ietf.org>
> *Subject: *RE: [spring] SRv6 Network Programming - ICMP Source Address
> Selection
>
>
>
> Pablo,
>
>
>
> Section 2.2 of RFC 4443 offers the following options:
>
>
>
> =E2=80=9C   (a) If the message is a response to a message sent to one of =
the
>
>        node's unicast addresses, the Source Address of the reply MUST be
>
>        that same address.
>
>
>
>    (b) If the message is a response to a message sent to any other
>
>        address, such as
>
>
>
>        - a multicast group address,
>
>        - an anycast address implemented by the node, or
>
>        - a unicast address that does not belong to the node
>
>
>
>       the Source Address of the ICMPv6 packet MUST be a unicast address
>
>       belonging to the node. =E2=80=9C
>
>
>
> So, the question boils down to whether you consider a SID to be one of th=
e
> node=E2=80=99s unicast addresses. If so, the answer is a). If not, the an=
swer is b).
>
>
>
> So, which is it?
>
>
>
>                                                     Happy Holidays,
>
>                                                          Ron
>
>
>
>
>
>
>
>
>
> Juniper Business Use Only
>
> *From:* Pablo Camarillo (pcamaril) <pcamaril@cisco.com>
> *Sent:* Friday, December 20, 2019 12:30 PM
> *To:* Ron Bonica <rbonica@juniper.net>
> *Cc:* spring@ietf.org
> *Subject:* Re: [spring] SRv6 Network Programming - ICMP Source Address
> Selection
>
>
>
> Ron,
>
>
>
> I guess that draft-ietf-6man-segment-routing-header does not contain any
> explicit text about it because it is not needed.
>
> Instead draft-ietf-6man-segment-routing-header contains a reference to
> RFC4443 that details in section 2.2 how to select it.
>
>
>
> There is no text in draft-ietf-spring-srv6-network-programming that
> changes such behavior.
>
>
>
> Happy Holidays,
>
> Pablo.
>
>
>
> *From: *spring <spring-bounces@ietf.org> on behalf of Ron Bonica <
> rbonica=3D40juniper.net@dmarc.ietf.org>
> *Date: *Thursday, 19 December 2019 at 14:59
> *To: *"Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>, "spring@ietf.org=
"
> <spring@ietf.org>
> *Subject: *Re: [spring] SRv6 Network Programming - ICMP Source Address
> Selection
>
>
>
> Pablo,
>
>
>
> Can you provide a specific reference into
> draft-ietf-6man-segment-routing-header? I can=E2=80=99t find the answer t=
o my
> question in there.
>
>
>
>
> Ron
>
>
>
>
>
>
>
>
>
> Juniper Business Use Only
>
> *From:* Pablo Camarillo (pcamaril) <pcamaril@cisco.com>
> *Sent:* Thursday, December 19, 2019 6:47 AM
> *To:* Ron Bonica <rbonica@juniper.net>; spring@ietf.org
> *Subject:* Re: SRv6 Network Programming - ICMP Source Address Selection
>
>
>
> Ron,
>
>
>
> This is exactly the same as in the SRH.
>
> There is no text in draft-ietf-spring-srv6-network-programming that
> changes this.
>
>
>
> Cheers,
>
> Pablo.
>
>
>
> *From: *Ron Bonica <rbonica@juniper.net>
> *Date: *Monday, 9 December 2019 at 23:48
> *To: *"Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>, SPRING WG <
> spring@ietf.org>, 6man <6man@ietf.org>
> *Subject: *RE: SRv6 Network Programming - ICMP Source Address Selection
>
>
>
> Pablo,
>
>
>
> Section 2.2 of RFC 4443 offers two options. If you think that a SID is a
> unicast address, the first option is applicable. If you think that a SID =
is
> not a unicast address, the second option is applicable.
>
>
>
> Which did you choose?
>
>
>
>
> Ron
>
>
>
>
>
> Juniper Business Use Only
>
> *From:* Pablo Camarillo (pcamaril) <pcamaril@cisco.com>
> *Sent:* Monday, December 9, 2019 10:18 AM
> *To:* Ron Bonica <rbonica@juniper.net>; SPRING WG <spring@ietf.org>; 6man
> <6man@ietf.org>
> *Subject:* Re: SRv6 Network Programming - ICMP Source Address Selection
>
>
>
> Ron,
>
>
>
> As you pointed out in your email, RFC4443 Section 2.2 is very clear about
> how to select the source address.
>
> draft-ietf-spring-srv6-network-programming does not change this.
>
>
>
> Thanks,
>
> Pablo.
>
>
>
> *From: *ipv6 <ipv6-bounces@ietf.org> on behalf of Ron Bonica <
> rbonica=3D40juniper.net@dmarc.ietf.org>
> *Date: *Friday, 6 December 2019 at 17:40
> *To: *SPRING WG <spring@ietf.org>, 6man <6man@ietf.org>
> *Subject: *SRv6 Network Programming - ICMP Source Address Selection
>
>
>
> Authors,
>
>
>
> When an SRv6 node sends an ICMP message, how does it select the ICMP
> message=E2=80=99s source address?
>
>
>
> Section 2.2 of RFC 4443 offers two options. If you think that a SID is a
> unicast address, the first option is applicable. If you think that a SID =
is
> not a unicast address, the second option is applicable.
>
>
>
>                                                                      Ron
>
>
>
> Juniper Business Use Only
>
>
>
> Please excuse any typos, sent from my 'smart'phone.
>
>
>
> Please excuse any typos, sent from my 'smart'phone.
>
>
>
> Please excuse any typos, sent from my 'smart'phone.
>
>
>
> Please excuse any typos, sent from my 'smart'phone.
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

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<div dir=3D"ltr">Seems like you&#39;re saying that if the SID is not an any=
cast SID it is as though it were unicast and therefore 4443/2.2/a applies, =
i.e. the SID is the source address for the ICMP error message.<div><br></di=
v><div>If the SID is an anycast SID, then the router must follow 4443/2.2/b=
 and chose another unicast address associated with the node as the ICMP sou=
rce address.</div><div><br></div><div>Is that correct, and complete?</div><=
/div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">O=
n Thu, Jan 16, 2020 at 10:25 AM Pablo Camarillo (pcamaril) &lt;<a href=3D"m=
ailto:pcamaril@cisco.com">pcamaril@cisco.com</a>&gt; wrote:<br></div><block=
quote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1=
px solid rgb(204,204,204);padding-left:1ex">





<div lang=3D"ES">
<div class=3D"gmail-m_-2380149827258143115WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Ron,</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">=C2=A0</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">No, you cannot say that. As I j=
ust mentioned in my previous email: anycast SIDs.</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">=C2=A0</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">In your implementation you need=
 to strictly follow RFC4443 section 2.2 for selecting the ICMP Message sour=
ce address. This implies that you need to develop both options introduced i=
n RFC4443 together with the logic to
 be able to choose in between A and B. </span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">=C2=A0</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Cheers,</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Pablo.</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">=C2=A0</span></p>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(181,196,223);padding:3pt 0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><b><span lang=3D"EN-US" s=
tyle=3D"font-size:12pt;color:black">From:
</span></b><span lang=3D"EN-US" style=3D"font-size:12pt;color:black">spring=
 &lt;<a href=3D"mailto:spring-bounces@ietf.org" target=3D"_blank">spring-bo=
unces@ietf.org</a>&gt; on behalf of Ron Bonica &lt;rbonica=3D<a href=3D"mai=
lto:40juniper.net@dmarc.ietf.org" target=3D"_blank">40juniper.net@dmarc.iet=
f.org</a>&gt;<br>
<b>Date: </b>Tuesday, 14 January 2020 at 20:28<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;<a href=3D"mailto:pca=
maril@cisco.com" target=3D"_blank">pcamaril@cisco.com</a>&gt;<br>
<b>Cc: </b>&quot;<a href=3D"mailto:spring@ietf.org" target=3D"_blank">sprin=
g@ietf.org</a>&quot; &lt;<a href=3D"mailto:spring@ietf.org" target=3D"_blan=
k">spring@ietf.org</a>&gt;<br>
<b>Subject: </b>Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection</span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">Pabl=
o,</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">Can =
we unequivocally say that all of the SIDs mentioned in the PGM document are=
 unicast addresses?</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0 Ron</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"gmail-m_-2380149827258143115msipfooter30b3d538" align=3D"center=
" style=3D"margin-right:0cm;margin-left:36pt;margin-bottom:0.0001pt;text-al=
ign:center">
<span lang=3D"EN-US" style=3D"font-size:7pt;color:black">Juniper Business U=
se Only</span></p>
<div>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(225,225,225);padding:3pt 0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><b><span lang=3D"EN-US">F=
rom:</span></b><span lang=3D"EN-US"> Pablo Camarillo (pcamaril) &lt;<a href=
=3D"mailto:pcamaril@cisco.com" target=3D"_blank">pcamaril@cisco.com</a>&gt;
<br>
<b>Sent:</b> Tuesday, January 14, 2020 12:44 PM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net" target=3D"=
_blank">rbonica@juniper.net</a>&gt;<br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf=
.org</a><br>
<b>Subject:</b> Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection</span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-GB">Ron,=
</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-GB">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-GB">As a=
 matter of fact we cannot =E2=80=9Cunequivocally state that a SID is a unic=
ast address=E2=80=9D always. Simple reason: RFC8402 - =E2=80=9C3.3.=C2=A0 I=
GP-Anycast Segment (Anycast-SID)=E2=80=9D.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-GB">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-GB">Chee=
rs,</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-GB">Pabl=
o.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-GB">=C2=
=A0</span></p>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(181,196,223);padding:3pt 0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><b><span lang=3D"EN-US" s=
tyle=3D"font-size:12pt;color:black">From:
</span></b><span lang=3D"EN-US" style=3D"font-size:12pt;color:black">Ron Bo=
nica &lt;</span><a href=3D"mailto:rbonica@juniper.net" target=3D"_blank"><s=
pan lang=3D"EN-US" style=3D"font-size:12pt">rbonica@juniper.net</span></a><=
span lang=3D"EN-US" style=3D"font-size:12pt;color:black">&gt;<br>
<b>Date: </b>Monday, 13 January 2020 at 20:41<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><a href=3D"mai=
lto:pcamaril@cisco.com" target=3D"_blank"><span lang=3D"EN-US" style=3D"fon=
t-size:12pt">pcamaril@cisco.com</span></a><span lang=3D"EN-US" style=3D"fon=
t-size:12pt;color:black">&gt;<br>
<b>Cc: </b>&quot;</span><a href=3D"mailto:spring@ietf.org" target=3D"_blank=
"><span lang=3D"EN-US" style=3D"font-size:12pt">spring@ietf.org</span></a><=
span lang=3D"EN-US" style=3D"font-size:12pt;color:black">&quot; &lt;</span>=
<a href=3D"mailto:spring@ietf.org" target=3D"_blank"><span lang=3D"EN-US" s=
tyle=3D"font-size:12pt">spring@ietf.org</span></a><span lang=3D"EN-US" styl=
e=3D"font-size:12pt;color:black">&gt;<br>
<b>Subject: </b>RE: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection</span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-US">Pabl=
o,</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-US">The =
problem isn=E2=80=99t a statement in the network programming draft. It is a=
n omission in the network programming draft.
</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-US">If t=
he network programming draft unequivocally stated that a SID is a unicast a=
ddress of the instantiating node, the following text from RFC 4443 would ap=
ply:</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"gmail-m_-2380149827258143115MsoListParagraph" style=3D"margin-l=
eft:108pt"><span lang=3D"EN-US">=E2=80=9CIf the message is a response to a =
message sent to one of the node&#39;s unicast addresses, the Source Address=
 of the reply MUST be=C2=A0 that same address.=E2=80=9D</span></p>
<p class=3D"gmail-m_-2380149827258143115MsoListParagraph" style=3D"margin-l=
eft:108pt"><span lang=3D"EN-US">=C2=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-US">If t=
he network programming draft unequivocally stated that a SID is a not unica=
st address of the instantiating node, the following text from RFC 4443 woul=
d apply:</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"gmail-m_-2380149827258143115MsoListParagraph" style=3D"margin-l=
eft:108pt"><span lang=3D"EN-US">If the message is a response to a message s=
ent to any other address, the Source Address of the ICMPv6 packet MUST be a=
 unicast address belonging to the node.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-US">=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0Ron</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"gmail-m_-2380149827258143115msipfooter30b3d538" align=3D"center=
" style=3D"margin-right:0cm;margin-left:72pt;margin-bottom:0.0001pt;text-al=
ign:center">
<span lang=3D"EN-US" style=3D"font-size:7pt;color:black">Juniper Business U=
se Only</span></p>
<div>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(225,225,225);padding:3pt 0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><b><span lang=3D"EN-US">F=
rom:</span></b><span lang=3D"EN-US"> Pablo Camarillo (pcamaril) &lt;</span>=
<a href=3D"mailto:pcamaril@cisco.com" target=3D"_blank"><span lang=3D"EN-US=
">pcamaril@cisco.com</span></a><span lang=3D"EN-US">&gt;
<br>
<b>Sent:</b> Monday, January 13, 2020 12:31 PM<br>
<b>To:</b> Ron Bonica &lt;</span><a href=3D"mailto:rbonica@juniper.net" tar=
get=3D"_blank"><span lang=3D"EN-US">rbonica@juniper.net</span></a><span lan=
g=3D"EN-US">&gt;<br>
<b>Cc:</b> </span><a href=3D"mailto:spring@ietf.org" target=3D"_blank"><spa=
n lang=3D"EN-US">spring@ietf.org</span></a><span lang=3D"EN-US"><br>
<b>Subject:</b> Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection</span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-GB">Ron,=
</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-GB">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-GB">You =
cannot pre-select or enforce one of the two options you refer to below.</sp=
an></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-GB">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-GB">The =
ICMP behaviors/considerations for SRv6 NET-PGM are the same as in the SRH.
</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-GB">It b=
oils down to:=C2=A0</span><span lang=3D"EN-US">when you generate an ICMP Pa=
rameter Problem Message you follow the logic described in RFC4443 section 2=
.2 to choose the source address of the packet.
</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-US">RFC4=
443 offers two options A and B.=C2=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-US">In y=
our implementation you need to develop both options and depending on the ty=
pe of address you will choose either A or B. It is not possible to create a=
n implementation shortcut and pre-select/enforce
 only one of them.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-GB">Can =
you please point me to the text in draft-ietf-spring-srv6-network-programmi=
ng that suggests that the ICMP considerations are changed with respect to t=
he SRH? I believe there is none.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-GB">Than=
k you,</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-GB">Pabl=
o.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-GB">=C2=
=A0</span></p>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(181,196,223);padding:3pt 0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><b><span lang=3D"EN-US" =
style=3D"font-size:12pt;color:black">From:
</span></b><span lang=3D"EN-US" style=3D"font-size:12pt;color:black">Ron Bo=
nica &lt;</span><a href=3D"mailto:rbonica@juniper.net" target=3D"_blank"><s=
pan lang=3D"EN-US" style=3D"font-size:12pt">rbonica@juniper.net</span></a><=
span lang=3D"EN-US" style=3D"font-size:12pt;color:black">&gt;<br>
<b>Date: </b>Friday, 10 January 2020 at 20:09<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><a href=3D"mai=
lto:pcamaril@cisco.com" target=3D"_blank"><span lang=3D"EN-US" style=3D"fon=
t-size:12pt">pcamaril@cisco.com</span></a><span lang=3D"EN-US" style=3D"fon=
t-size:12pt;color:black">&gt;<br>
<b>Cc: </b>&quot;</span><a href=3D"mailto:spring@ietf.org" target=3D"_blank=
"><span lang=3D"EN-US" style=3D"font-size:12pt">spring@ietf.org</span></a><=
span lang=3D"EN-US" style=3D"font-size:12pt;color:black">&quot; &lt;</span>=
<a href=3D"mailto:spring@ietf.org" target=3D"_blank"><span lang=3D"EN-US" s=
tyle=3D"font-size:12pt">spring@ietf.org</span></a><span lang=3D"EN-US" styl=
e=3D"font-size:12pt;color:black">&gt;<br>
<b>Subject: </b>RE: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection</span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-US">Pab=
lo,</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-US">So,=
 in Section 4.1, Line S03, an SRv6 node sends an ICMP Parameter Problem Mes=
sage. What is the source address in that message?</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-US">Is =
it the destination address of the offending packet (i.e., A SID)? Or is in =
the address of an interface on the SRv6 node?</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-US">=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
 Ron</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"gmail-m_-2380149827258143115msipfooter30b3d538" align=3D"center=
" style=3D"text-align:center"><span lang=3D"EN-US" style=3D"font-size:7pt;c=
olor:black">Juniper Business Use Only</span></p>
<div>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(225,225,225);padding:3pt 0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><b><span lang=3D"EN-US">=
From:</span></b><span lang=3D"EN-US"> Pablo Camarillo (pcamaril) &lt;</span=
><a href=3D"mailto:pcamaril@cisco.com" target=3D"_blank"><span lang=3D"EN-U=
S">pcamaril@cisco.com</span></a><span lang=3D"EN-US">&gt;
<br>
<b>Sent:</b> Friday, January 10, 2020 11:54 AM<br>
<b>To:</b> Ron Bonica &lt;</span><a href=3D"mailto:rbonica@juniper.net" tar=
get=3D"_blank"><span lang=3D"EN-US">rbonica@juniper.net</span></a><span lan=
g=3D"EN-US">&gt;<br>
<b>Cc:</b> </span><a href=3D"mailto:spring@ietf.org" target=3D"_blank"><spa=
n lang=3D"EN-US">spring@ietf.org</span></a><span lang=3D"EN-US"><br>
<b>Subject:</b> Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection</span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-GB">Ron=
,</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-GB">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-GB">The=
re is no behavior in draft-ietf-spring-srv6-network-programming that propos=
es to encode a SID in the source address of the IPv6 header.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-GB">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-GB">If =
in the future someone would propose to do such thing in another I-D; it is =
up to those authors to justify why they would want to do this, and how to e=
nsure that the processing does not break
 any other protocol. But as said, this is not in the scope of draft-ietf-sp=
ring-srv6-network-programming.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-GB">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-GB">Reg=
arding the ICMP messages:
</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-GB">SRH=
 follows RFC4443 Section 2.2 with respect to how to select the ICMP Source =
Address.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-GB">SRv=
6 Network Programming does not change this (it simply follows the SRv6 rule=
s defined by the SRH).</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-GB">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-GB">In =
your email you refer to a possibility of future protocols breaking this. I =
don=E2=80=99t think that we can guess what future protocols will do, and it=
 is up to those future protocols to ensure compatibility
 with the existing standards.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-GB">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-GB">Tha=
nks,</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-GB">Pab=
lo.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-GB">=C2=
=A0</span></p>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(181,196,223);padding:3pt 0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><b><span lang=3D"EN-US" =
style=3D"font-size:12pt;color:black">From:
</span></b><span lang=3D"EN-US" style=3D"font-size:12pt;color:black">Ron Bo=
nica &lt;</span><a href=3D"mailto:rbonica@juniper.net" target=3D"_blank"><s=
pan lang=3D"EN-US" style=3D"font-size:12pt">rbonica@juniper.net</span></a><=
span lang=3D"EN-US" style=3D"font-size:12pt;color:black">&gt;<br>
<b>Date: </b>Tuesday, 7 January 2020 at 19:07<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><a href=3D"mai=
lto:pcamaril@cisco.com" target=3D"_blank"><span lang=3D"EN-US" style=3D"fon=
t-size:12pt">pcamaril@cisco.com</span></a><span lang=3D"EN-US" style=3D"fon=
t-size:12pt;color:black">&gt;<br>
<b>Cc: </b>SPRING WG &lt;</span><a href=3D"mailto:spring@ietf.org" target=
=3D"_blank"><span lang=3D"EN-US" style=3D"font-size:12pt">spring@ietf.org</=
span></a><span lang=3D"EN-US" style=3D"font-size:12pt;color:black">&gt;<br>
<b>Subject: </b>RE: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection</span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-US">Pab=
lo,</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-US">Let=
 me try to ask the question another way:</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"gmail-m_-2380149827258143115MsoListParagraph" style=3D"margin-l=
eft:180pt"><span lang=3D"EN-US">1)</span><span lang=3D"EN-US" style=3D"font=
-size:7pt;font-family:&quot;Times New Roman&quot;,serif">=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0
</span><span lang=3D"EN-US">Is it generally acceptable for a SID to appear =
in the source address field of an IPv6 header?</span></p>
<p class=3D"gmail-m_-2380149827258143115MsoListParagraph" style=3D"margin-l=
eft:180pt"><span lang=3D"EN-US">2)</span><span lang=3D"EN-US" style=3D"font=
-size:7pt;font-family:&quot;Times New Roman&quot;,serif">=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0
</span><span lang=3D"EN-US">Can an exception be made for ICMP messages?</sp=
an></p>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-US">I t=
hink that the answer to the first question is =E2=80=9Cno=E2=80=9D, because=
 doing so would break ICMP. Think about what would happen if:</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"gmail-m_-2380149827258143115MsoListParagraph" style=3D"margin-l=
eft:180pt"><span lang=3D"EN-US">-</span><span lang=3D"EN-US" style=3D"font-=
size:7pt;font-family:&quot;Times New Roman&quot;,serif">=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span><span lang=3D"EN-US">Node S sends a packet to Node D with a SID S as=
 its source address.</span></p>
<p class=3D"gmail-m_-2380149827258143115MsoListParagraph" style=3D"margin-l=
eft:180pt"><span lang=3D"EN-US">-</span><span lang=3D"EN-US" style=3D"font-=
size:7pt;font-family:&quot;Times New Roman&quot;,serif">=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span><span lang=3D"EN-US">Node Q is an intermediate node on the path from=
 Node S to Node D. For some reason, Node Q cannot forward the packet.</span=
></p>
<p class=3D"gmail-m_-2380149827258143115MsoListParagraph" style=3D"margin-l=
eft:180pt"><span lang=3D"EN-US">-</span><span lang=3D"EN-US" style=3D"font-=
size:7pt;font-family:&quot;Times New Roman&quot;,serif">=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span><span lang=3D"EN-US">Node Q sends an ICMP message to Node S. The ICM=
P destination address is SID S.</span></p>
<p class=3D"gmail-m_-2380149827258143115MsoListParagraph" style=3D"margin-l=
eft:180pt"><span lang=3D"EN-US">-</span><span lang=3D"EN-US" style=3D"font-=
size:7pt;font-family:&quot;Times New Roman&quot;,serif">=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span><span lang=3D"EN-US">The ICMP message arrives at Node A</span></p>
<p class=3D"gmail-m_-2380149827258143115MsoListParagraph" style=3D"margin-l=
eft:180pt"><span lang=3D"EN-US">-</span><span lang=3D"EN-US" style=3D"font-=
size:7pt;font-family:&quot;Times New Roman&quot;,serif">=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span><span lang=3D"EN-US">Node A discards the ICMP message, because the p=
ayload is ICMP</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-US">It =
might be OK to make an exception for ICMP messages. This is because RFC 444=
3 forbids sending an ICMP message in response to another ICMP message. Howe=
ver, I am not entirely sure that this
 is a good idea. One day in the future, some protocol other than ICMP may t=
ry send a response to the source address of the ICMP message.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-US">=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Ron</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"gmail-m_-2380149827258143115msipfooter30b3d538" align=3D"center=
" style=3D"text-align:center"><span lang=3D"EN-US" style=3D"font-size:7pt;c=
olor:black">Juniper Business Use Only</span></p>
<div>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(225,225,225);padding:3pt 0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><b><span lang=3D"EN-US">=
From:</span></b><span lang=3D"EN-US"> Pablo Camarillo (pcamaril) &lt;</span=
><a href=3D"mailto:pcamaril@cisco.com" target=3D"_blank"><span lang=3D"EN-U=
S">pcamaril@cisco.com</span></a><span lang=3D"EN-US">&gt;
<br>
<b>Sent:</b> Tuesday, January 7, 2020 4:18 AM<br>
<b>To:</b> Ron Bonica &lt;</span><a href=3D"mailto:rbonica@juniper.net" tar=
get=3D"_blank"><span lang=3D"EN-US">rbonica@juniper.net</span></a><span lan=
g=3D"EN-US">&gt;<br>
<b>Cc:</b> SPRING WG &lt;</span><a href=3D"mailto:spring@ietf.org" target=
=3D"_blank"><span lang=3D"EN-US">spring@ietf.org</span></a><span lang=3D"EN=
-US">&gt;<br>
<b>Subject:</b> Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection</span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-GB">Ron=
, </span></p>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-GB">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-GB">It=
=E2=80=99s good to see agreement on the fact that SRH follows RFC4443 Secti=
on 2.2 with respect to how the ICMP Source Address is selected.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-GB">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-GB">Can=
 you please point me to the text in draft-ietf-spring-srv6-network-programm=
ing that changes the behavior below from RFC4443 Section 2.2? I believe the=
re is no such text.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-GB">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-GB">Tha=
nks,</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-GB">Pab=
lo.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:144pt"><span lang=3D"EN-GB">=C2=
=A0</span></p>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(181,196,223);padding:3pt 0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><b><span lang=3D"EN-US" =
style=3D"font-size:12pt;color:black">From:
</span></b><span lang=3D"EN-US" style=3D"font-size:12pt;color:black">Ron Bo=
nica &lt;</span><a href=3D"mailto:rbonica@juniper.net" target=3D"_blank"><s=
pan lang=3D"EN-US" style=3D"font-size:12pt">rbonica@juniper.net</span></a><=
span lang=3D"EN-US" style=3D"font-size:12pt;color:black">&gt;<br>
<b>Date: </b>Saturday, 21 December 2019 at 20:59<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><a href=3D"mai=
lto:pcamaril@cisco.com" target=3D"_blank"><span lang=3D"EN-US" style=3D"fon=
t-size:12pt">pcamaril@cisco.com</span></a><span lang=3D"EN-US" style=3D"fon=
t-size:12pt;color:black">&gt;<br>
<b>Cc: </b>&quot;</span><a href=3D"mailto:spring@ietf.org" target=3D"_blank=
"><span lang=3D"EN-US" style=3D"font-size:12pt">spring@ietf.org</span></a><=
span lang=3D"EN-US" style=3D"font-size:12pt;color:black">&quot; &lt;</span>=
<a href=3D"mailto:spring@ietf.org" target=3D"_blank"><span lang=3D"EN-US" s=
tyle=3D"font-size:12pt">spring@ietf.org</span></a><span lang=3D"EN-US" styl=
e=3D"font-size:12pt;color:black">&gt;<br>
<b>Subject: </b>RE: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection</span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">Pab=
lo,</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">Sec=
tion 2.2 of RFC 4443 offers the following options:</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=E2=
=80=9C=C2=A0=C2=A0 (a) If the message is a response to a message sent to on=
e of the</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 node&#39;s unicast addresses, the Source =
Address of the reply MUST be</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 that same address.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0=C2=A0 (b) If the message is a response to a message sent to any other</=
span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 address, such as</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 - a multicast group address,</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 - an anycast address implemented by the n=
ode, or</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 - a unicast address that does not belong =
to the node</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0 the Source Address of the ICMPv6 packet MUST be=
 a unicast address</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0 belonging to the node. =E2=80=9C</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">So,=
 the question boils down to whether you consider a SID to be one of the nod=
e=E2=80=99s unicast addresses. If so, the answer is a). If not, the answer =
is b).</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">So,=
 which is it?</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0 Happy Holidays,</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0Ron</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"gmail-m_-2380149827258143115msipfooter30b3d538" align=3D"center=
" style=3D"text-align:center"><span lang=3D"EN-US" style=3D"font-size:7pt;c=
olor:black">Juniper Business Use Only</span></p>
<div>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(225,225,225);padding:3pt 0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><b><span lang=3D"EN-US">=
From:</span></b><span lang=3D"EN-US"> Pablo Camarillo (pcamaril) &lt;</span=
><a href=3D"mailto:pcamaril@cisco.com" target=3D"_blank"><span lang=3D"EN-U=
S">pcamaril@cisco.com</span></a><span lang=3D"EN-US">&gt;
<br>
<b>Sent:</b> Friday, December 20, 2019 12:30 PM<br>
<b>To:</b> Ron Bonica &lt;</span><a href=3D"mailto:rbonica@juniper.net" tar=
get=3D"_blank"><span lang=3D"EN-US">rbonica@juniper.net</span></a><span lan=
g=3D"EN-US">&gt;<br>
<b>Cc:</b> </span><a href=3D"mailto:spring@ietf.org" target=3D"_blank"><spa=
n lang=3D"EN-US">spring@ietf.org</span></a><span lang=3D"EN-US"><br>
<b>Subject:</b> Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection</span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-GB">Ron=
,</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-GB">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-GB">I g=
uess that draft-ietf-6man-segment-routing-header does not contain any expli=
cit text about it because it is not needed.
</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-GB">Ins=
tead draft-ietf-6man-segment-routing-header contains a reference to RFC4443=
 that details in section 2.2 how to select it.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">The=
re is no text in draft-ietf-spring-srv6-network-programming that changes su=
ch behavior.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">Hap=
py Holidays,</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">Pab=
lo.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-GB">=C2=
=A0</span></p>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(181,196,223);padding:3pt 0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><b><span lang=3D"EN-US" =
style=3D"font-size:12pt;color:black">From:
</span></b><span lang=3D"EN-US" style=3D"font-size:12pt;color:black">spring=
 &lt;</span><a href=3D"mailto:spring-bounces@ietf.org" target=3D"_blank"><s=
pan lang=3D"EN-US" style=3D"font-size:12pt">spring-bounces@ietf.org</span><=
/a><span lang=3D"EN-US" style=3D"font-size:12pt;color:black">&gt;
 on behalf of Ron Bonica &lt;</span><a href=3D"mailto:rbonica=3D40juniper.n=
et@dmarc.ietf.org" target=3D"_blank"><span lang=3D"EN-US" style=3D"font-siz=
e:12pt">rbonica=3D40juniper.net@dmarc.ietf.org</span></a><span lang=3D"EN-U=
S" style=3D"font-size:12pt;color:black">&gt;<br>
<b>Date: </b>Thursday, 19 December 2019 at 14:59<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><a href=3D"mai=
lto:pcamaril@cisco.com" target=3D"_blank"><span lang=3D"EN-US" style=3D"fon=
t-size:12pt">pcamaril@cisco.com</span></a><span lang=3D"EN-US" style=3D"fon=
t-size:12pt;color:black">&gt;, &quot;</span><a href=3D"mailto:spring@ietf.o=
rg" target=3D"_blank"><span lang=3D"EN-US" style=3D"font-size:12pt">spring@=
ietf.org</span></a><span lang=3D"EN-US" style=3D"font-size:12pt;color:black=
">&quot;
 &lt;</span><a href=3D"mailto:spring@ietf.org" target=3D"_blank"><span lang=
=3D"EN-US" style=3D"font-size:12pt">spring@ietf.org</span></a><span lang=3D=
"EN-US" style=3D"font-size:12pt;color:black">&gt;<br>
<b>Subject: </b>Re: [spring] SRv6 Network Programming - ICMP Source Address=
 Selection</span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">Pab=
lo,</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">Can=
 you provide a specific reference into draft-ietf-6man-segment-routing-head=
er? I can=E2=80=99t find the answer to my question in there.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
 Ron</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"gmail-m_-2380149827258143115msipfooter30b3d538" align=3D"center=
" style=3D"text-align:center"><span lang=3D"EN-US" style=3D"font-size:7pt;c=
olor:black">Juniper Business Use Only</span></p>
<div>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(225,225,225);padding:3pt 0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><b><span lang=3D"EN-US">=
From:</span></b><span lang=3D"EN-US"> Pablo Camarillo (pcamaril) &lt;</span=
><a href=3D"mailto:pcamaril@cisco.com" target=3D"_blank"><span lang=3D"EN-U=
S">pcamaril@cisco.com</span></a><span lang=3D"EN-US">&gt;
<br>
<b>Sent:</b> Thursday, December 19, 2019 6:47 AM<br>
<b>To:</b> Ron Bonica &lt;</span><a href=3D"mailto:rbonica@juniper.net" tar=
get=3D"_blank"><span lang=3D"EN-US">rbonica@juniper.net</span></a><span lan=
g=3D"EN-US">&gt;;
</span><a href=3D"mailto:spring@ietf.org" target=3D"_blank"><span lang=3D"E=
N-US">spring@ietf.org</span></a><span lang=3D"EN-US"><br>
<b>Subject:</b> Re: SRv6 Network Programming - ICMP Source Address Selectio=
n</span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-GB">Ron=
,</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-GB">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-GB">Thi=
s is exactly the same as in the SRH.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-GB">The=
re is no text in draft-ietf-spring-srv6-network-programming that changes th=
is.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-GB">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-GB">Che=
ers,</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-GB">Pab=
lo.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-GB">=C2=
=A0</span></p>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(181,196,223);padding:3pt 0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><b><span lang=3D"EN-US" =
style=3D"font-size:12pt;color:black">From:
</span></b><span lang=3D"EN-US" style=3D"font-size:12pt;color:black">Ron Bo=
nica &lt;</span><a href=3D"mailto:rbonica@juniper.net" target=3D"_blank"><s=
pan lang=3D"EN-US" style=3D"font-size:12pt">rbonica@juniper.net</span></a><=
span lang=3D"EN-US" style=3D"font-size:12pt;color:black">&gt;<br>
<b>Date: </b>Monday, 9 December 2019 at 23:48<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><a href=3D"mai=
lto:pcamaril@cisco.com" target=3D"_blank"><span lang=3D"EN-US" style=3D"fon=
t-size:12pt">pcamaril@cisco.com</span></a><span lang=3D"EN-US" style=3D"fon=
t-size:12pt;color:black">&gt;, SPRING WG &lt;</span><a href=3D"mailto:sprin=
g@ietf.org" target=3D"_blank"><span lang=3D"EN-US" style=3D"font-size:12pt"=
>spring@ietf.org</span></a><span lang=3D"EN-US" style=3D"font-size:12pt;col=
or:black">&gt;,
 6man &lt;</span><a href=3D"mailto:6man@ietf.org" target=3D"_blank"><span l=
ang=3D"EN-US" style=3D"font-size:12pt">6man@ietf.org</span></a><span lang=
=3D"EN-US" style=3D"font-size:12pt;color:black">&gt;<br>
<b>Subject: </b>RE: SRv6 Network Programming - ICMP Source Address Selectio=
n</span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">Pab=
lo,</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">Sec=
tion 2.2 of RFC 4443 offers two options. If you think that a SID is a unica=
st address, the first option is applicable. If you think that a SID is not =
a unicast address, the second option
 is applicable.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">Whi=
ch did you choose?</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Ron</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"gmail-m_-2380149827258143115msipfooter30b3d538" align=3D"center=
" style=3D"text-align:center"><span lang=3D"EN-US" style=3D"font-size:7pt;c=
olor:black">Juniper Business Use Only</span></p>
<div>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(225,225,225);padding:3pt 0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><b><span lang=3D"EN-US">=
From:</span></b><span lang=3D"EN-US"> Pablo Camarillo (pcamaril) &lt;</span=
><a href=3D"mailto:pcamaril@cisco.com" target=3D"_blank"><span lang=3D"EN-U=
S">pcamaril@cisco.com</span></a><span lang=3D"EN-US">&gt;
<br>
<b>Sent:</b> Monday, December 9, 2019 10:18 AM<br>
<b>To:</b> Ron Bonica &lt;</span><a href=3D"mailto:rbonica@juniper.net" tar=
get=3D"_blank"><span lang=3D"EN-US">rbonica@juniper.net</span></a><span lan=
g=3D"EN-US">&gt;; SPRING WG &lt;</span><a href=3D"mailto:spring@ietf.org" t=
arget=3D"_blank"><span lang=3D"EN-US">spring@ietf.org</span></a><span lang=
=3D"EN-US">&gt;; 6man
 &lt;</span><a href=3D"mailto:6man@ietf.org" target=3D"_blank"><span lang=
=3D"EN-US">6man@ietf.org</span></a><span lang=3D"EN-US">&gt;<br>
<b>Subject:</b> Re: SRv6 Network Programming - ICMP Source Address Selectio=
n</span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-GB">Ron=
,</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-GB">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-GB">As =
you pointed out in your email, RFC4443 Section 2.2 is very clear about how =
to select the source address.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-GB">dra=
ft-ietf-spring-srv6-network-programming does not change this.
</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-GB">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-GB">Tha=
nks,</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-GB">Pab=
lo.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-GB">=C2=
=A0</span></p>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(181,196,223);padding:3pt 0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><b><span lang=3D"EN-US" =
style=3D"font-size:12pt;color:black">From:
</span></b><span lang=3D"EN-US" style=3D"font-size:12pt;color:black">ipv6 &=
lt;</span><a href=3D"mailto:ipv6-bounces@ietf.org" target=3D"_blank"><span =
lang=3D"EN-US" style=3D"font-size:12pt">ipv6-bounces@ietf.org</span></a><sp=
an lang=3D"EN-US" style=3D"font-size:12pt;color:black">&gt; on behalf
 of Ron Bonica &lt;</span><a href=3D"mailto:rbonica=3D40juniper.net@dmarc.i=
etf.org" target=3D"_blank"><span lang=3D"EN-US" style=3D"font-size:12pt">rb=
onica=3D40juniper.net@dmarc.ietf.org</span></a><span lang=3D"EN-US" style=
=3D"font-size:12pt;color:black">&gt;<br>
<b>Date: </b>Friday, 6 December 2019 at 17:40<br>
<b>To: </b>SPRING WG &lt;</span><a href=3D"mailto:spring@ietf.org" target=
=3D"_blank"><span lang=3D"EN-US" style=3D"font-size:12pt">spring@ietf.org</=
span></a><span lang=3D"EN-US" style=3D"font-size:12pt;color:black">&gt;, 6m=
an &lt;</span><a href=3D"mailto:6man@ietf.org" target=3D"_blank"><span lang=
=3D"EN-US" style=3D"font-size:12pt">6man@ietf.org</span></a><span lang=3D"E=
N-US" style=3D"font-size:12pt;color:black">&gt;<br>
<b>Subject: </b>SRv6 Network Programming - ICMP Source Address Selection</s=
pan></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">Aut=
hors,</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">Whe=
n an SRv6 node sends an ICMP message, how does it select the ICMP message=
=E2=80=99s source address?</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">Sec=
tion 2.2 of RFC 4443 offers two options. If you think that a SID is a unica=
st address, the first option is applicable. If you think that a SID is not =
a unicast address, the second option
 is applicable.</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Ron</span></p>
<p class=3D"MsoNormal" style=3D"margin-left:180pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
<p class=3D"gmail-m_-2380149827258143115msipfooter30b3d538" align=3D"center=
" style=3D"text-align:center"><span lang=3D"EN-US" style=3D"font-size:7pt;c=
olor:black">Juniper Business Use Only</span></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:108pt"><span lang=3D"EN-US">Ple=
ase excuse any typos, sent from my &#39;smart&#39;phone.</span></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-US">Plea=
se excuse any typos, sent from my &#39;smart&#39;phone.</span></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-US">=C2=
=A0</span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt"><span lang=3D"EN-US">Plea=
se excuse any typos, sent from my &#39;smart&#39;phone.</span></p>
<div id=3D"gmail-m_-2380149827258143115ms-outlook-mobile-signature">
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<p class=3D"MsoNormal">Please excuse any typos, sent from my &#39;smart&#39=
;phone.<u></u><u></u></p>
</div>
</div>
</div>

_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer"=
 target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><br>
</blockquote></div>

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From: Linda Dunbar <linda.dunbar@futurewei.com>
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Thread-Topic: Can features described by draft-ietf-spring-sr-service-programming-01 be supported by draft-ietf-spring-srv6-network-programming-08?
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Subject: [spring] Can features described by draft-ietf-spring-sr-service-programming-01 be supported by draft-ietf-spring-srv6-network-programming-08?
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Authors of draft-ietf-spring-sr-service-programming-01:

"draft-ietf-spring-sr-service-programming" specifies Service SIDs to be emb=
edded into the SID list. Does it make the SID list even longer? For example=
,  if a packet needs to be steered through the network by 3 SIDs (S1, S2, S=
3), Service SIDs will be the additional SIDs to be added to the packet head=
er?

It seems straight forward for draft-ietf-spring-srv6-network-programming to=
 add an instruction to forward the packet to a specific service Function.  =
Why not using draft-ietf-spring-srv6-network-programming to steer packets t=
o specific service functions?
What features specified by draft-ietf-spring-sr-service-programming that ca=
n't be achieved by draft-ietf-spring-srv6-network-programming?

Some minor questions:  What is the ENH in Section 6.1.2? You have ENH =3D 5=
9, ENH =3D 4,  Are  you talking the Ethernet frames being encapsulated by S=
RH header?
The inner payload are IP frames, aren't they?

Thank you very much,

Linda Dunbar




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<p class=3D"MsoNormal">Authors of draft-ietf-spring-sr-service-programming-=
01: <o:p>
</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&#8220;draft-ietf-spring-sr-service-programming&#822=
1; specifies Service SIDs to be embedded into the SID list. Does it make th=
e SID list even longer? For example, &nbsp;if a packet needs to be steered =
through the network by 3 SIDs (S1, S2, S3), Service
 SIDs will be the additional SIDs to be added to the packet header? <o:p></=
o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">It seems straight forward for draft-ietf-spring-srv6=
-network-programming to add an instruction to forward the packet to a speci=
fic service Function. &nbsp;Why not using draft-ietf-spring-srv6-network-pr=
ogramming to steer packets to specific
 service functions? <o:p></o:p></p>
<p class=3D"MsoNormal">What features specified by draft-ietf-spring-sr-serv=
ice-programming that can&#8217;t be achieved by draft-ietf-spring-srv6-netw=
ork-programming?<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Some minor questions: &nbsp;What is the ENH in Secti=
on 6.1.2? You have ENH =3D 59, ENH =3D 4, &nbsp;Are&nbsp; you talking the E=
thernet frames being encapsulated by SRH header?
<o:p></o:p></p>
<p class=3D"MsoNormal">The inner payload are IP frames, aren&#8217;t they? =
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Thank you very much, <o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Linda Dunbar <o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
</body>
</html>

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To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
References: <18437_1576774434_5DFBAB22_18437_317_31_53C29892C857584299CBF5D05346208A48D392D1@OPEXCAUBM43.corporate.adroot.infra.ftgroup> <F73A3CB31E8BE34FA1BBE3C8F0CB2AE2977D08D7@dggeml510-mbx.china.huawei.com>
From: Loa Andersson <loa@pi.nu>
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Date: Fri, 17 Jan 2020 10:24:48 +0800
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Subject: Re: [spring] draft-ietf-spring-srv6-network-programming - 2 week Early Allocation Call
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WG,

I support this early allocation, we should not leave implementation
efforts hanging.

/Loa

On 03/01/2020 18:21, Mach Chen wrote:
> Hi,
> 
> Given there are more and more on-going implementations and interoperate 
> testing, I think its better to allocate the necessary code points 
>  asap. Hence, I support the Early Allocation request.
> 
> Best regards,
> 
> Mach
> 
> *From:*spring [mailto:spring-bounces@ietf.org] *On Behalf Of 
> *bruno.decraene@orange.com
> *Sent:* Friday, December 20, 2019 12:54 AM
> *To:* SPRING WG <spring@ietf.org>
> *Subject:* [spring] draft-ietf-spring-srv6-network-programming - 2 week 
> Early Allocation Call
> 
> Hi SPRING WG,
> 
> This begins a 2 week Early Allocation call for a Ethernet value from 
> the "Protocol Numbers" registry..
> 
> https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#section-9.1
> 
> https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-07#section-5.3
> 
> https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml
> 
> In parallel of the Working Group Last Call which is currently running, 
> the authors are requesting for early code point allocation from IANA as 
> implementations are under way.
> 
> The criteria for early allocation are:
> 
>   a. The code points must be from a space designated as "RFC
> 
>   Required", "IETF Review", or "Standards Action". Additionally,
> 
>   requests for early assignment of code points from a
> 
>   "Specification Required" registry are allowed if the
> 
>   specification will be published as an RFC.
> 
>   b. The format, semantics, processing, and other rules related to
> 
>   handling the protocol entities defined by the code points
> 
>   (henceforth called "specifications") must be adequately described
> 
>   in an Internet-Draft.
> 
>   c. The specifications of these code points must be stable; i.e., if
> 
>   there is a change, implementations based on the earlier and later
> 
>   specifications must be seamlessly interoperable.
> 
>   d. The Working Group chairs and Area Directors (ADs) judge that
> 
>   there is sufficient interest in the community for early (pre-RFC)
> 
>   implementation and deployment, or that failure to make an early
> 
>   allocation might lead to contention for the code point in the
> 
>   field.
> 
> https://tools.ietf.org/html/rfc7120#section-2
> 
> I believe the above conditions are met. (minus the AD judgement which is 
> further down in the process)
> 
> As a reminder, this topic has mainly been discussed following IETF 105 
> (Montral) both during the meeting and on the mailing list.
> 
> During IETF 106 it has been discussed in the IntArea WG. 
> https://datatracker.ietf.org/meeting/106/proceedings#intarea
> 
> Note that this code point is not to be specific to SRv6. Depending on AD 
> guidance, this specific code point even be moved from 
> draft-ietf-spring-srv6-network-programming into a specific 1 page draft.
> 
> If you support early adoption, please include support along with any 
> comments about the drafts technical solution.
> 
> If you do not support early allocation, please include no support in 
> your email and indicate why.
> 
> Thank you,
> 
> --Bruno
> 
> _________________________________________________________________________________________________________________________
> 
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> Thank you.
> 
> 
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
> 

-- 


Loa Andersson                        email: loa@pi.nu
Senior MPLS Expert
Bronze Dragon Consulting             phone: +46 739 81 21 64


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From: Gyan Mishra <hayabusagsm@gmail.com>
Date: Fri, 17 Jan 2020 00:13:35 -0500
Message-ID: <CABNhwV1kzcC_qn+w88A9QyV-mj-u4dNETnJ4kOWBMYDXHTrsOw@mail.gmail.com>
To: Linda Dunbar <linda.dunbar@futurewei.com>
Cc: SPRING WG <spring@ietf.org>,  "draft-ietf-spring-sr-service-programming@ietf.org" <draft-ietf-spring-sr-service-programming@ietf.org>
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Subject: Re: [spring] Can features described by draft-ietf-spring-sr-service-programming-01 be supported by draft-ietf-spring-srv6-network-programming-08?
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--000000000000968b69059c4f01d3
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Hi Linda

Those are good questions which I have similar and will try to answer your
questions as best I can as my interpretation.

So the SRv6 programming draft provides the End.x variant instantiation of
the end SID where the destination IP is the local interface.  So that is in
regards to normal outer header Hop by hop traffic steering (A1,A2) where A1
is source and A2 is destination and SRH is (S3,S2,S1) and SL=3D<S1,S2,S3> a=
nd
S1 is first segment and S3 is the ultimate segment.

So with this services SID which I agree is very confusing is a case where
you have a firewall or LB or some type of SFC that had to happen so now you
traffic steering path does incur few extra SIDs that go outside the SR
egress PE construct to an =E2=80=9CSR aware=E2=80=9D services endpoint L(S)=
 where L is the
egress PE and now you have a few extra SID hops steered to the service.


Since the service is within the SR domain context dataplane but outside the
SR domain flow ingress PE to egress PE ; service hanging off the egress PE
the SR programming only reflects End.x Sid instantiation and since this
service is local to the egress PE to SR capable node I am guessing that is
why there is different treatment and it=E2=80=99s not considered end.x Sid =
variant
instantiation.

Let=E2=80=99s call Z the services SID hops

(A1,A2) where A1 is source and A2 is destination and SRH is
(S3,S2,S1,Z3,Z2,Z1) and SL=3D<S1,S2,S3,Z1,Z2,Z3)

No doubt very confusing.

I think if the ingress SRv6 source node SRH is steering the entire path to
the services SID it gets questionable and maybe the SRv6 programming needs
to add End.x Sid variant instantiation for the extra hops off the egress PE
to the services SID.

I am thinking maybe the egress PE could make the decision that SFC service
is needed and not the ingress PE SR source node ; and then it does simplify
the MSD SID depth issue  length of the SRH ; and so we would terminate on
the egress PE ; and then we would have a new 6in6 encapsulation with new
SRH literally identical to performing TI-LFA at the PLR node.

I thin the ENH is same as EH extended header in 6.1.2.

Authors

What do you think of my proposal?

Gyan



On Thu, Jan 16, 2020 at 7:31 PM Linda Dunbar <linda.dunbar@futurewei.com>
wrote:

> Authors of draft-ietf-spring-sr-service-programming-01:
>
>
>
> =E2=80=9Cdraft-ietf-spring-sr-service-programming=E2=80=9D specifies Serv=
ice SIDs to be
> embedded into the SID list. Does it make the SID list even longer? For
> example,  if a packet needs to be steered through the network by 3 SIDs
> (S1, S2, S3), Service SIDs will be the additional SIDs to be added to the
> packet header?
>
>
>
> It seems straight forward for draft-ietf-spring-srv6-network-programming
> to add an instruction to forward the packet to a specific service
> Function.  Why not using draft-ietf-spring-srv6-network-programming to
> steer packets to specific service functions?
>
> What features specified by draft-ietf-spring-sr-service-programming that
> can=E2=80=99t be achieved by draft-ietf-spring-srv6-network-programming?
>
>
>
> Some minor questions:  What is the ENH in Section 6.1.2? You have ENH =3D
> 59, ENH =3D 4,  Are  you talking the Ethernet frames being encapsulated b=
y
> SRH header?
>
> The inner payload are IP frames, aren=E2=80=99t they?
>
>
>
> Thank you very much,
>
>
>
> Linda Dunbar
>
>
>
>
>
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>
--=20

Gyan  Mishra

Network Engineering & Technology

Verizon

Silver Spring, MD 20904

Phone: 301 502-1347

Email: gyan.s.mishra@verizon.com

--000000000000968b69059c4f01d3
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<div><br></div><div dir=3D"auto">Hi Linda=C2=A0</div><div dir=3D"auto"><br>=
</div><div dir=3D"auto">Those are good questions which I have similar and w=
ill try to answer your questions as best I can as my interpretation.</div><=
div dir=3D"auto"><br></div><div dir=3D"auto">So the SRv6 programming draft =
provides the End.x variant instantiation of the end SID where the destinati=
on IP is the local interface.=C2=A0 So that is in regards to normal outer h=
eader Hop by hop traffic steering (A1,A2) where A1 is source and A2 is dest=
ination and SRH is (S3,S2,S1) and SL=3D&lt;S1,S2,S3&gt; and S1 is first seg=
ment and S3 is the ultimate segment. =C2=A0</div><div dir=3D"auto"><br></di=
v><div dir=3D"auto">So with this services SID which I agree is very confusi=
ng is a case where you have a firewall or LB or some type of SFC that had t=
o happen so now you traffic steering path does incur few extra SIDs that go=
 outside the SR egress PE construct to an =E2=80=9CSR aware=E2=80=9D servic=
es endpoint L(S) where L is the egress PE and now you have a few extra SID =
hops steered to the service.</div><div dir=3D"auto"><br></div><div dir=3D"a=
uto"><br></div><div dir=3D"auto">Since the service is within the SR domain =
context dataplane but outside the SR domain flow ingress PE to egress PE ; =
service hanging off the egress PE the SR programming only reflects End.x Si=
d instantiation and since this service is local to the egress PE to SR capa=
ble node I am guessing that is why there is different treatment and it=E2=
=80=99s not considered end.x Sid variant instantiation.</div><div dir=3D"au=
to"><br></div><div dir=3D"auto">Let=E2=80=99s call Z the services SID hops<=
/div><div dir=3D"auto"><br></div><div dir=3D"auto">(A1,A2) where A1 is sour=
ce and A2 is destination and SRH is (S3,S2,S1,Z3,Z2,Z1) and SL=3D&lt;S1,S2,=
S3,Z1,Z2,Z3)</div><div dir=3D"auto"><br></div><div dir=3D"auto">No doubt ve=
ry confusing.</div><div dir=3D"auto"><br></div><div dir=3D"auto">I think if=
 the ingress SRv6 source node SRH is steering the entire path to the servic=
es SID it gets questionable and maybe the SRv6 programming needs to add End=
.x Sid variant instantiation for the extra hops off the egress PE to the se=
rvices SID.</div><div dir=3D"auto"><br></div><div dir=3D"auto">I am thinkin=
g maybe the egress PE could make the decision that SFC service is needed an=
d not the ingress PE SR source node ; and then it does simplify the MSD SID=
 depth issue =C2=A0length of the SRH ; and so we would terminate on the egr=
ess PE ; and then we would have a new 6in6 encapsulation with new SRH liter=
ally identical to performing TI-LFA at the PLR node. =C2=A0</div><div dir=
=3D"auto"><br></div><div dir=3D"auto">I thin the ENH is same as EH extended=
 header in 6.1.2.</div><div dir=3D"auto"><br></div><div dir=3D"auto">Author=
s</div><div dir=3D"auto"><br></div><div dir=3D"auto">What do you think of m=
y proposal?</div><div dir=3D"auto"><br></div><div dir=3D"auto">Gyan</div><d=
iv dir=3D"auto"><br></div><div dir=3D"auto"><br></div><div><br><div class=
=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, Jan 16, 2020=
 at 7:31 PM Linda Dunbar &lt;<a href=3D"mailto:linda.dunbar@futurewei.com">=
linda.dunbar@futurewei.com</a>&gt; wrote:<br></div><blockquote class=3D"gma=
il_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-lef=
t:1ex">





<div lang=3D"EN-US" link=3D"#0563C1" vlink=3D"#954F72">
<div>
<p class=3D"MsoNormal">Authors of draft-ietf-spring-sr-service-programming-=
01: <u></u>
<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">=E2=80=9Cdraft-ietf-spring-sr-service-programming=E2=
=80=9D specifies Service SIDs to be embedded into the SID list. Does it mak=
e the SID list even longer? For example, =C2=A0if a packet needs to be stee=
red through the network by 3 SIDs (S1, S2, S3), Service
 SIDs will be the additional SIDs to be added to the packet header? <u></u>=
<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">It seems straight forward for draft-ietf-spring-srv6=
-network-programming to add an instruction to forward the packet to a speci=
fic service Function.=C2=A0 Why not using draft-ietf-spring-srv6-network-pr=
ogramming to steer packets to specific
 service functions? <u></u><u></u></p>
<p class=3D"MsoNormal">What features specified by draft-ietf-spring-sr-serv=
ice-programming that can=E2=80=99t be achieved by draft-ietf-spring-srv6-ne=
twork-programming?<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Some minor questions: =C2=A0What is the ENH in Secti=
on 6.1.2? You have ENH =3D 59, ENH =3D 4, =C2=A0Are=C2=A0 you talking the E=
thernet frames being encapsulated by SRH header?
<u></u><u></u></p>
<p class=3D"MsoNormal">The inner payload are IP frames, aren=E2=80=99t they=
? <u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Thank you very much, <u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Linda Dunbar <u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
</div>

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From: Gyan Mishra <hayabusagsm@gmail.com>
Date: Fri, 17 Jan 2020 00:37:57 -0500
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To: Linda Dunbar <linda.dunbar@futurewei.com>
Cc: SPRING WG <spring@ietf.org>,  "draft-ietf-spring-sr-service-programming@ietf.org" <draft-ietf-spring-sr-service-programming@ietf.org>
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Subject: Re: [spring] Can features described by draft-ietf-spring-sr-service-programming-01 be supported by draft-ietf-spring-srv6-network-programming-08?
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Authors

If the SR source node steers the flow to the services SFC being rendered on
a firewall etc and if that entire path is now encoded into the SRH then I
think the service SID end.x variant instantiation should be added to SRV6
programming draft.

Does the service have to be an SR aware service and what is the benefit.  I
guess programmability from a PCE centralized model.  Any other benefits as
it does add complexity and exacerbates SID depth issue.

Instead of the service SID being extra SID hops steered by the SR source
node could the end.x Sid instantiation on the egress PE ultimate segment
have special =E2=80=9CSFC encoding=E2=80=9D in the function or argument fie=
ld of the SID
IID 64 bit portion.

The function encoded could state =E2=80=9Cfirewall SFC needs to be rendered=
=E2=80=9D  ;
perform 6in6 encapsulation with new SRH and steer the flow to the service
endpoint.

The SR source node would have the knowledge that services are needed and I
think encoding the SFC in the ultimate segment egress PE would signal
egress PE to now steer the flow to the service SID endpoint.

Kind regards

Gyan

On Fri, Jan 17, 2020 at 12:13 AM Gyan Mishra <hayabusagsm@gmail.com> wrote:

>
> Hi Linda
>
> Those are good questions which I have similar and will try to answer your
> questions as best I can as my interpretation.
>
> So the SRv6 programming draft provides the End.x variant instantiation of
> the end SID where the destination IP is the local interface.  So that is =
in
> regards to normal outer header Hop by hop traffic steering (A1,A2) where =
A1
> is source and A2 is destination and SRH is (S3,S2,S1) and SL=3D<S1,S2,S3>=
 and
> S1 is first segment and S3 is the ultimate segment.
>
> So with this services SID which I agree is very confusing is a case where
> you have a firewall or LB or some type of SFC that had to happen so now y=
ou
> traffic steering path does incur few extra SIDs that go outside the SR
> egress PE construct to an =E2=80=9CSR aware=E2=80=9D services endpoint L(=
S) where L is the
> egress PE and now you have a few extra SID hops steered to the service.
>
>
> Since the service is within the SR domain context dataplane but outside
> the SR domain flow ingress PE to egress PE ; service hanging off the egre=
ss
> PE the SR programming only reflects End.x Sid instantiation and since thi=
s
> service is local to the egress PE to SR capable node I am guessing that i=
s
> why there is different treatment and it=E2=80=99s not considered end.x Si=
d variant
> instantiation.
>
> Let=E2=80=99s call Z the services SID hops
>
> (A1,A2) where A1 is source and A2 is destination and SRH is
> (S3,S2,S1,Z3,Z2,Z1) and SL=3D<S1,S2,S3,Z1,Z2,Z3)
>
> No doubt very confusing.
>
> I think if the ingress SRv6 source node SRH is steering the entire path t=
o
> the services SID it gets questionable and maybe the SRv6 programming need=
s
> to add End.x Sid variant instantiation for the extra hops off the egress =
PE
> to the services SID.
>
> I am thinking maybe the egress PE could make the decision that SFC servic=
e
> is needed and not the ingress PE SR source node ; and then it does simpli=
fy
> the MSD SID depth issue  length of the SRH ; and so we would terminate on
> the egress PE ; and then we would have a new 6in6 encapsulation with new
> SRH literally identical to performing TI-LFA at the PLR node.
>
> I thin the ENH is same as EH extended header in 6.1.2.
>
> Authors
>
> What do you think of my proposal?
>
> Gyan
>
>
>
> On Thu, Jan 16, 2020 at 7:31 PM Linda Dunbar <linda.dunbar@futurewei.com>
> wrote:
>
>> Authors of draft-ietf-spring-sr-service-programming-01:
>>
>>
>>
>> =E2=80=9Cdraft-ietf-spring-sr-service-programming=E2=80=9D specifies Ser=
vice SIDs to be
>> embedded into the SID list. Does it make the SID list even longer? For
>> example,  if a packet needs to be steered through the network by 3 SIDs
>> (S1, S2, S3), Service SIDs will be the additional SIDs to be added to th=
e
>> packet header?
>>
>>
>>
>> It seems straight forward for draft-ietf-spring-srv6-network-programming
>> to add an instruction to forward the packet to a specific service
>> Function.  Why not using draft-ietf-spring-srv6-network-programming to
>> steer packets to specific service functions?
>>
>> What features specified by draft-ietf-spring-sr-service-programming that
>> can=E2=80=99t be achieved by draft-ietf-spring-srv6-network-programming?
>>
>>
>>
>> Some minor questions:  What is the ENH in Section 6.1.2? You have ENH =
=3D
>> 59, ENH =3D 4,  Are  you talking the Ethernet frames being encapsulated =
by
>> SRH header?
>>
>> The inner payload are IP frames, aren=E2=80=99t they?
>>
>>
>>
>> Thank you very much,
>>
>>
>>
>> Linda Dunbar
>>
>>
>>
>>
>>
>>
>> _______________________________________________
>> spring mailing list
>> spring@ietf.org
>> https://www.ietf.org/mailman/listinfo/spring
>>
> --
>
> Gyan  Mishra
>
> Network Engineering & Technology
>
> Verizon
>
> Silver Spring, MD 20904
>
> Phone: 301 502-1347
>
> Email: gyan.s.mishra@verizon.com
>
>
>
> --

Gyan  Mishra

Network Engineering & Technology

Verizon

Silver Spring, MD 20904

Phone: 301 502-1347

Email: gyan.s.mishra@verizon.com

--0000000000006f42f5059c4f5bf3
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div><br></div><div dir=3D"auto">Authors</div><div dir=3D"auto"><br></div><=
div dir=3D"auto">If the SR source node steers the flow to the services SFC =
being rendered on a firewall etc and if that entire path is now encoded int=
o the SRH then I think the service SID end.x variant instantiation should b=
e added to SRV6 programming draft. =C2=A0</div><div dir=3D"auto"><br></div>=
<div dir=3D"auto">Does the service have to be an SR aware service and what =
is the benefit.=C2=A0 I guess programmability from a PCE centralized model.=
=C2=A0 Any other benefits as it does add complexity and exacerbates SID dep=
th issue.</div><div dir=3D"auto"><br></div><div dir=3D"auto">Instead of the=
 service SID being extra SID hops steered by the SR source node could the e=
nd.x Sid instantiation on the egress PE ultimate segment have special =E2=
=80=9CSFC encoding=E2=80=9D in the function or argument field of the SID II=
D 64 bit portion.</div><div dir=3D"auto"><br></div><div dir=3D"auto">The fu=
nction encoded could state =E2=80=9Cfirewall SFC needs to be rendered=E2=80=
=9D =C2=A0; perform 6in6 encapsulation with new SRH and steer the flow to t=
he service endpoint. =C2=A0</div><div dir=3D"auto"><br></div><div dir=3D"au=
to">The SR source node would have the knowledge that services are needed an=
d I think encoding the SFC in the ultimate segment egress PE would signal e=
gress PE to now steer the flow to the service SID endpoint.</div><div dir=
=3D"auto"><br></div><div dir=3D"auto">Kind regards=C2=A0</div><div dir=3D"a=
uto"><br></div><div dir=3D"auto">Gyan</div><div><br><div class=3D"gmail_quo=
te"><div dir=3D"ltr" class=3D"gmail_attr">On Fri, Jan 17, 2020 at 12:13 AM =
Gyan Mishra &lt;<a href=3D"mailto:hayabusagsm@gmail.com">hayabusagsm@gmail.=
com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"marg=
in:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><br></div><=
div dir=3D"auto">Hi Linda=C2=A0</div><div dir=3D"auto"><br></div><div dir=
=3D"auto">Those are good questions which I have similar and will try to ans=
wer your questions as best I can as my interpretation.</div><div dir=3D"aut=
o"><br></div><div dir=3D"auto">So the SRv6 programming draft provides the E=
nd.x variant instantiation of the end SID where the destination IP is the l=
ocal interface.=C2=A0 So that is in regards to normal outer header Hop by h=
op traffic steering (A1,A2) where A1 is source and A2 is destination and SR=
H is (S3,S2,S1) and SL=3D&lt;S1,S2,S3&gt; and S1 is first segment and S3 is=
 the ultimate segment. =C2=A0</div><div dir=3D"auto"><br></div><div dir=3D"=
auto">So with this services SID which I agree is very confusing is a case w=
here you have a firewall or LB or some type of SFC that had to happen so no=
w you traffic steering path does incur few extra SIDs that go outside the S=
R egress PE construct to an =E2=80=9CSR aware=E2=80=9D services endpoint L(=
S) where L is the egress PE and now you have a few extra SID hops steered t=
o the service.</div><div dir=3D"auto"><br></div><div dir=3D"auto"><br></div=
><div dir=3D"auto">Since the service is within the SR domain context datapl=
ane but outside the SR domain flow ingress PE to egress PE ; service hangin=
g off the egress PE the SR programming only reflects End.x Sid instantiatio=
n and since this service is local to the egress PE to SR capable node I am =
guessing that is why there is different treatment and it=E2=80=99s not cons=
idered end.x Sid variant instantiation.</div><div dir=3D"auto"><br></div><d=
iv dir=3D"auto">Let=E2=80=99s call Z the services SID hops</div><div dir=3D=
"auto"><br></div><div dir=3D"auto">(A1,A2) where A1 is source and A2 is des=
tination and SRH is (S3,S2,S1,Z3,Z2,Z1) and SL=3D&lt;S1,S2,S3,Z1,Z2,Z3)</di=
v><div dir=3D"auto"><br></div><div dir=3D"auto">No doubt very confusing.</d=
iv><div dir=3D"auto"><br></div><div dir=3D"auto">I think if the ingress SRv=
6 source node SRH is steering the entire path to the services SID it gets q=
uestionable and maybe the SRv6 programming needs to add End.x Sid variant i=
nstantiation for the extra hops off the egress PE to the services SID.</div=
><div dir=3D"auto"><br></div><div dir=3D"auto">I am thinking maybe the egre=
ss PE could make the decision that SFC service is needed and not the ingres=
s PE SR source node ; and then it does simplify the MSD SID depth issue =C2=
=A0length of the SRH ; and so we would terminate on the egress PE ; and the=
n we would have a new 6in6 encapsulation with new SRH literally identical t=
o performing TI-LFA at the PLR node. =C2=A0</div><div dir=3D"auto"><br></di=
v><div dir=3D"auto">I thin the ENH is same as EH extended header in 6.1.2.<=
/div><div dir=3D"auto"><br></div><div dir=3D"auto">Authors</div><div dir=3D=
"auto"><br></div><div dir=3D"auto">What do you think of my proposal?</div><=
div dir=3D"auto"><br></div><div dir=3D"auto">Gyan</div><div dir=3D"auto"><b=
r></div><div dir=3D"auto"><br></div><div><br><div class=3D"gmail_quote"><di=
v dir=3D"ltr" class=3D"gmail_attr">On Thu, Jan 16, 2020 at 7:31 PM Linda Du=
nbar &lt;<a href=3D"mailto:linda.dunbar@futurewei.com" target=3D"_blank">li=
nda.dunbar@futurewei.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail=
_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:=
1ex">





<div lang=3D"EN-US" link=3D"#0563C1" vlink=3D"#954F72">
<div>
<p class=3D"MsoNormal">Authors of draft-ietf-spring-sr-service-programming-=
01: <u></u>
<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">=E2=80=9Cdraft-ietf-spring-sr-service-programming=E2=
=80=9D specifies Service SIDs to be embedded into the SID list. Does it mak=
e the SID list even longer? For example, =C2=A0if a packet needs to be stee=
red through the network by 3 SIDs (S1, S2, S3), Service
 SIDs will be the additional SIDs to be added to the packet header? <u></u>=
<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">It seems straight forward for draft-ietf-spring-srv6=
-network-programming to add an instruction to forward the packet to a speci=
fic service Function.=C2=A0 Why not using draft-ietf-spring-srv6-network-pr=
ogramming to steer packets to specific
 service functions? <u></u><u></u></p>
<p class=3D"MsoNormal">What features specified by draft-ietf-spring-sr-serv=
ice-programming that can=E2=80=99t be achieved by draft-ietf-spring-srv6-ne=
twork-programming?<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Some minor questions: =C2=A0What is the ENH in Secti=
on 6.1.2? You have ENH =3D 59, ENH =3D 4, =C2=A0Are=C2=A0 you talking the E=
thernet frames being encapsulated by SRH header?
<u></u><u></u></p>
<p class=3D"MsoNormal">The inner payload are IP frames, aren=E2=80=99t they=
? <u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Thank you very much, <u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Linda Dunbar <u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
</div>

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</blockquote></div></div>-- <br><div dir=3D"ltr" data-smartmail=3D"gmail_si=
gnature"><div dir=3D"ltr"><div><div dir=3D"ltr"><div dir=3D"ltr"><div dir=
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=3D"MsoNormal"><font face=3D"georgia, serif"><font size=3D"1" color=3D"#000=
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nt></p><p class=3D"MsoNormal"><font size=3D"1" color=3D"#000000" face=3D"ge=
orgia, serif">Network Engineering &amp; Technology=C2=A0</font></p><p class=
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erizon=C2=A0</font></p><p class=3D"MsoNormal"><font size=3D"1" color=3D"#00=
0000" face=3D"georgia, serif">Silver Spring, MD 20904</font></p><p class=3D=
"MsoNormal"><font size=3D"1" color=3D"#000000" face=3D"georgia, serif">Phon=
e: 301 502-1347</font></p><p class=3D"MsoNormal"><font size=3D"1" color=3D"=
#000000" face=3D"georgia, serif">Email: <a href=3D"mailto:gyan.s.mishra@ver=
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</div></div></div></div>
</blockquote></div></div>-- <br><div dir=3D"ltr" class=3D"gmail_signature" =
data-smartmail=3D"gmail_signature"><div dir=3D"ltr"><div><div dir=3D"ltr"><=
div dir=3D"ltr"><div dir=3D"ltr"><div dir=3D"ltr"><div dir=3D"ltr"><div dir=
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ze=3D"1" color=3D"#000000">G</font><font size=3D"1" color=3D"#000000">yan=
=C2=A0 Mishra</font></font></p><p class=3D"MsoNormal"><font size=3D"1" colo=
r=3D"#000000" face=3D"georgia, serif">Network Engineering &amp; Technology=
=C2=A0</font></p><p class=3D"MsoNormal"><font size=3D"1" color=3D"#000000" =
face=3D"georgia, serif">Verizon=C2=A0</font></p><p class=3D"MsoNormal"><fon=
t size=3D"1" color=3D"#000000" face=3D"georgia, serif">Silver Spring, MD 20=
904</font></p><p class=3D"MsoNormal"><font size=3D"1" color=3D"#000000" fac=
e=3D"georgia, serif">Phone: 301 502-1347</font></p><p class=3D"MsoNormal"><=
font size=3D"1" color=3D"#000000" face=3D"georgia, serif">Email: <a href=3D=
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Subject: [spring] SRv6's new deployment status information at OSS-fields.
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--000000000000582ea6059c5310d9
Content-Type: text/plain; charset="UTF-8"

Dear all SRv6-ers

I'm Hiorki working on developing SRv6 DCN and routing
software about SRv6.

I want to inform you a bit-news for SRv6 OpenSource implementation.
I contributed code to ExaBGP to support parsing and
advertising Prefix-SID for SRv6 L3VPN (especially type-4 and type-5)
and that was already merged and informed by ExaBGP community [1,2].
This is first-SRv6-BGP-cplane as OSS, isn't it ;)

And It's already reflected on segment-routing.net with
support by Ahmed. (thx Ahmed!!) [3]
**Can you reflect this deployment update to draft?**

- [1] https://twitter.com/exabgp/status/1216849537706446856
- [2] https://github.com/Exa-Networks/exabgp/releases/tag/4.2.0
- [3] https://www.segment-routing.net/open-software/exabgp/

Great thanks, I'm crazy happy to dive this fantastic community and
contribute SRv6. :)
[P.S. Just FYI]
Also I'm trying to contribute to another OSS (FRRouting and wireshark).
That is currently on review. If that will be completed, FRR will be
able to support BGP VPNv4 with SRv6 backend (Prefix-sid type-4,5
both is supported). And wireshark will be able to dissect
BGP-Prefix-SID path-attribute for SRv6-VPN (type-4,5).
If some updates occurred, I'll inform to here.
cheers
-- Hiroki / slankdev

--000000000000582ea6059c5310d9
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><pre class=3D"gmail-c-mrkdwn__pre" style=3D"box-sizing:inh=
erit;margin-top:4px;margin-bottom:4px;padding:8px;font-size:12px;line-heigh=
t:1.50001;font-variant-ligatures:none;white-space:pre-wrap;word-break:norma=
l;border-radius:4px;color:rgb(29,28,29);font-family:Monaco,Menlo,Consolas,&=
quot;Courier New&quot;,monospace">Dear all SRv6-ers</pre><pre class=3D"gmai=
l-c-mrkdwn__pre" style=3D"box-sizing:inherit;margin-top:4px;margin-bottom:4=
px;padding:8px;font-size:12px;line-height:1.50001;font-variant-ligatures:no=
ne;white-space:pre-wrap;word-break:normal;border-radius:4px;color:rgb(29,28=
,29);font-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;,monospace"><=
span class=3D"gmail-c-mrkdwn__br" style=3D"box-sizing:inherit;display:block=
;height:unset"></span>I&#39;m Hiorki working on developing SRv6 DCN and rou=
ting=20
software about SRv6.</pre><pre class=3D"gmail-c-mrkdwn__pre" style=3D"box-s=
izing:inherit;margin-top:4px;margin-bottom:4px;padding:8px;font-size:12px;l=
ine-height:1.50001;font-variant-ligatures:none;white-space:pre-wrap;word-br=
eak:normal;border-radius:4px;color:rgb(29,28,29);font-family:Monaco,Menlo,C=
onsolas,&quot;Courier New&quot;,monospace">I want to inform you a bit-news =
for SRv6 OpenSource implementation.
I contributed code to ExaBGP to support parsing and=20
advertising Prefix-SID for SRv6 L3VPN (especially type-4 and type-5)=20
and that was already merged and informed by ExaBGP community [1,2].
This is first-SRv6-BGP-cplane as OSS, isn&#39;t it ;)</pre><pre class=3D"gm=
ail-c-mrkdwn__pre" style=3D"box-sizing:inherit;margin-top:4px;margin-bottom=
:4px;padding:8px;font-size:12px;line-height:1.50001;font-variant-ligatures:=
none;white-space:pre-wrap;word-break:normal;border-radius:4px;color:rgb(29,=
28,29);font-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;,monospace"=
><span class=3D"gmail-c-mrkdwn__br" style=3D"box-sizing:inherit;display:blo=
ck;height:unset"></span>And It&#39;s already reflected on <a target=3D"_bla=
nk" class=3D"gmail-c-link" href=3D"http://segment-routing.net/" rel=3D"noop=
ener noreferrer" style=3D"box-sizing:inherit;color:inherit;text-decoration-=
line:none">segment-routing.net</a> with=20
support by Ahmed. (thx Ahmed!!) [3]
**Can you reflect this deployment update to draft?**
</pre><pre class=3D"gmail-c-mrkdwn__pre" style=3D"box-sizing:inherit;margin=
-top:4px;margin-bottom:4px;padding:8px;font-size:12px;line-height:1.50001;f=
ont-variant-ligatures:none;white-space:pre-wrap;word-break:normal;border-ra=
dius:4px;color:rgb(29,28,29);font-family:Monaco,Menlo,Consolas,&quot;Courie=
r New&quot;,monospace">- [1] <a target=3D"_blank" class=3D"gmail-c-link" hr=
ef=3D"https://twitter.com/exabgp/status/1216849537706446856" rel=3D"noopene=
r noreferrer" style=3D"box-sizing:inherit;color:inherit;text-decoration-lin=
e:none">https://twitter.com/exabgp/status/1216849537706446856</a><br style=
=3D"box-sizing:inherit">- [2] <a target=3D"_blank" class=3D"gmail-c-link" h=
ref=3D"https://github.com/Exa-Networks/exabgp/releases/tag/4.2.0" rel=3D"no=
opener noreferrer" style=3D"box-sizing:inherit;color:inherit;text-decoratio=
n-line:none">https://github.com/Exa-Networks/exabgp/releases/tag/4.2.0</a><=
br style=3D"box-sizing:inherit">- [3] <a target=3D"_blank" class=3D"gmail-c=
-link" href=3D"https://www.segment-routing.net/open-software/exabgp/" rel=
=3D"noopener noreferrer" style=3D"box-sizing:inherit;color:inherit;text-dec=
oration-line:none">https://www.segment-routing.net/open-software/exabgp/</a=
></pre><pre class=3D"gmail-c-mrkdwn__pre" style=3D"box-sizing:inherit;margi=
n-top:4px;margin-bottom:4px;padding:8px;font-size:12px;line-height:1.50001;=
font-variant-ligatures:none;white-space:pre-wrap;word-break:normal;border-r=
adius:4px;color:rgb(29,28,29);font-family:Monaco,Menlo,Consolas,&quot;Couri=
er New&quot;,monospace">Great thanks, I&#39;m crazy happy to dive this fant=
astic community and contribute SRv6. :)
<br style=3D"box-sizing:inherit">[P.S. Just FYI]<br style=3D"box-sizing:inh=
erit">Also I&#39;m trying to contribute to another OSS (FRRouting and wires=
hark).
That is currently on review. If that will be completed, FRR will be=20
able to support BGP VPNv4 with SRv6 backend (Prefix-sid type-4,5=20
both is supported). And wireshark will be able to dissect=20
BGP-Prefix-SID path-attribute for SRv6-VPN (type-4,5).
If some updates occurred, I&#39;ll inform to here.

<span class=3D"gmail-c-mrkdwn__br" style=3D"box-sizing:inherit;display:bloc=
k;height:unset"></span>cheers<br style=3D"box-sizing:inherit">-- Hiroki / s=
lankdev</pre></div>

--000000000000582ea6059c5310d9--


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From: <bruno.decraene@orange.com>
To: Ron Bonica <rbonica@juniper.net>, "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
CC: "spring@ietf.org" <spring@ietf.org>
Thread-Topic: Introduction of draft-ietf-spring-srv6-network-programming (was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6)
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Ron,


From: Ron Bonica [mailto:rbonica@juniper.net]
Sent: Thursday, January 16, 2020 4:58 PM


Bruno,

Would you like Pablo and me to develop text offline and bring it back to th=
e mailing list? Or would you prefer us to craft the text in a few emails on=
 the mailing list?
[Bruno] Any option works on my side. I'm not assuming that this comment is =
any special.
If both of you believe that you can quickly agree on some text and that the=
 sync would be easier offline, please do so.
However, if you can't agree within a reasonable period (1 or 2 weeks) pleas=
e bring back the discussion to the list.

Thank you,
--Bruno

                                                                           =
         Ron




Juniper Business Use Only
From: bruno.decraene@orange.com <bruno.decraene@orange.com>
Sent: Thursday, January 16, 2020 9:00 AM
To: Pablo Camarillo (pcamaril) <pcamaril@cisco.com>; Ron Bonica <rbonica@ju=
niper.net>
Cc: spring@ietf.org
Subject: RE: Introduction of draft-ietf-spring-srv6-network-programming (wa=
s Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advanta=
ges of SRv6)

Pablo,

Thanks for the reply.
I'm not seen explicitly what you are proposing to address Ron's comment, re=
garding the clarification of this sentence in the draft.
May I again suggest that both of you follow up to progress on a resolution =
to clarify the meaning of this sentence in the draft?

Thanks,
Bruno


From: Pablo Camarillo (pcamaril) [mailto:pcamaril@cisco.com]
Sent: Tuesday, January 14, 2020 6:43 PM
To: rbonica@juniper.net<mailto:rbonica@juniper.net>; DECRAENE Bruno TGI/OLN
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Introduction of draft-ietf-spring-srv6-network-programming (was Re=
: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages =
of SRv6)

(Updated the subject to reflect the new topic of this thread: the introduct=
ion of this draft)

Bruno,

You are correct. In essence we are saying the same thing as the 3rd line of=
 RFC8402.
A segment can represent any instruction, topological or
   service based.

For example, for service programming we have a draft-ietf-spring-sr-service=
-programming. This goes beyond mere packet routing. NET-PGM provides the ba=
se and draft-ietf-spring-sr-service-programming builds on top of that.

Thanks,
Pablo

From: "bruno.decraene@orange.com<mailto:bruno.decraene@orange.com>" <bruno.=
decraene@orange.com<mailto:bruno.decraene@orange.com>>
Date: Tuesday, 14 January 2020 at 11:02
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>, "Pablo Ca=
marillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.com>>
Cc: "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sprin=
g@ietf.org>>
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Hello Ron, Pablo,

From: Ron Bonica [mailto:rbonica@juniper.net]
Sent: Monday, January 13, 2020 9:38 PM
To: DECRAENE Bruno TGI/OLN
Cc: spring@ietf.org<mailto:spring@ietf.org>; Pablo Camarillo (pcamaril)
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Hello Bruno.

According to the network programming draft, "Network programming combines s=
egment routing functions, both simple and complex, to achieve a networking =
objective that goes beyond mere packet routing."

Sadly, the document offers little insight as to what those non-routing obje=
ctives might be.
Ron,
Thank you for elaborating on this comment. The scope of the revised comment=
 seem to me more focused and now indeed related to this document.

Ron, Pablo,
May I suggest that you both follow up to progress on a resolution on the co=
mment on this sentence?

e.g. clarify what is meant by "beyond packet routing", and/or what is exact=
ly meant by this sentence beyond what is already stated in the SR architect=
ure (which for example, but not restricted to, states that  "A segment can =
represent any instruction, topological or service based." )
If this can't be reasonably clarified, worse case could possibly be to remo=
ve this sentence or fall back to a reference to the/a SR architecture RFC/s=
ection/sentence. As of today, I don't assume that this point would be a blo=
cking point to progress that document or to delay it for a long time.


Thank you,
--Bruno



If SRv6 offers something beyond the mere packet routing capabilities of SR-=
MPLS, the network programming draft would be the most appropriate place to =
mention it. Otherwise, SRv6 is just an IPv6 version of SR-MPLS.

                                                                   Ron




Juniper Business Use Only
From: bruno.decraene@orange.com<mailto:bruno.decraene@orange.com> <bruno.de=
craene@orange.com<mailto:bruno.decraene@orange.com>>
Sent: Monday, January 13, 2020 8:12 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: spring@ietf.org<mailto:spring@ietf.org>; Pablo Camarillo (pcamaril) <pc=
amaril@cisco.com<mailto:pcamaril@cisco.com>>
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,


From: spring [mailto:spring-bounces@ietf.org] On Behalf Of Ron Bonica
Sent: Friday, January 10, 2020 8:14 PM
To: Pablo Camarillo (pcamaril)
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Chairs,

I believe that we have two independent requests for a comparison of the ben=
efits of SRv6 over SR-MPLS in the network programming draft.

A comparison of the benefits of SRv6 over SR-MPLS is one thing that could p=
ossibly be discussed if there is interest from the WG.
E.g. to help network provider make a choice, or in the context of "beyond S=
Rv6" to help the WG identify the benefit/cost analysis of existing solution=
s and what we want to achieve with new/extensions to SR data planes.

But why do you think that this would belong to draft-ietf-spring-srv6-netwo=
rk-programming?

Thanks,
--Bruno


                                                            Ron




Juniper Business Use Only
From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> On B=
ehalf Of Pablo Camarillo (pcamaril)
Sent: Friday, January 10, 2020 11:55 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,

If you want to discuss your analysis please let's do so in a separate email=
 thread out of the context of the Working Group Last Call of draft-ietf-spr=
ing-srv6-network-programming.

As I said before: draft-ietf-spring-srv6-network-programming is a Standards=
 Track document and this topic is not about any standardization, hence out =
of scope of this document.

Same applies to other content (e.g. illustrations) that was formerly in net=
work programming and we moved to a separate draft since it was not standard=
izing anything at all and was merely informative.

Thanks,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Tuesday, 7 January 2020 at 19:17
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Pablo,

RFC 8354 reinforces my analysis in https://mailarchive.ietf.org/arch/msg/sp=
ring/3WGuQumIfcmH281nwq3s9Un6raI<https://urldefense.com/v3/__https:/mailarc=
hive.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6raI__;!!NEt6yMaO-gk!S=
olNvh35q4NS-PTVWOxXAzbTnMHltfvPWi_OSjhMYkmm_NucR6imYrrLvc35Kat6$>. Are you =
saying that you agree with this analysis?

                                             Ron






Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Tuesday, January 7, 2020 4:17 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,

SPRING has already done this work and documented the SRv6 use-cases in RFC8=
354 before progressing with the SRv6 standardization.

Further on, draft-ietf-spring-srv6-network-programming is a Standards Track=
 document.
I fail to see how a cite from RFC8354 or any other text on "SRv6 vs SR-MPLS=
" standardises anything at all.
Note that we have already removed text from draft-ietf-spring-srv6-network-=
programming (e.g. illustrations) because it was not standardising anything.

Thank you for the suggestion,
Pablo.

From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> on b=
ehalf of Ron Bonica <rbonica=3D40juniper.net@dmarc.ietf.org<mailto:rbonica=
=3D40juniper.net@dmarc.ietf.org>>
Date: Monday, 30 December 2019 at 11:08
To: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: [spring] draft-ietf-spring-srv6-network-programming: Relative adva=
ntages of SRv6

Pablo,

Would you consider adding a short section to the draft explaining the relat=
ive advantages of SRv6 over SR-MPLS? This section would explain why an netw=
ork operator would deploy SRv6 instead of SR-MPLS.

                                                                           =
              Ron



Juniper Business Use Only

Please excuse any typos, sent from my 'smart'phone.

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35.4pt">
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<p class=3D"MsoNormal"><span style=3D"mso-ascii-font-family:Calibri;mso-han=
si-font-family:Calibri;mso-bidi-font-family:&quot;Times New Roman&quot;;col=
or:#1F497D">Ron,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-ascii-font-family:Calibri;mso-han=
si-font-family:Calibri;mso-bidi-font-family:&quot;Times New Roman&quot;;col=
or:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span>=
</p>
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<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><b><span lang=3D"EN-US"=
 style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&=
quot;;mso-fareast-font-family:&quot;Times New Roman&quot;;mso-ansi-language=
:EN-US">From:</span></b><span lang=3D"EN-US" style=3D"font-size:10.0pt;font=
-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;mso-fareast-font-family:&=
quot;Times New Roman&quot;;mso-ansi-language:EN-US">
 Ron Bonica [mailto:rbonica@juniper.net] <br>
<b>Sent:</b> Thursday, January 16, 2020 4:58 PM<br style=3D"mso-special-cha=
racter:line-break">
<![if !supportLineBreakNewLine]><br style=3D"mso-special-character:line-bre=
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<![endif]><o:p></o:p></span></p>
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<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">Bruno,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">Would you like Pablo and me to develop text=
 offline and bring it back to the mailing list? Or would you prefer us to c=
raft the text in a few emails on the mailing
 list?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US">[Bruno] Any option works=
 on my side. I&#8217;m not assuming that this comment
 is any special.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US">If both of you believe t=
hat you can quickly agree on some text and that
 the sync would be easier offline, please do so.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US">However, if you can&#821=
7;t agree within a reasonable period (1 or 2 weeks) please
 bring back the discussion to the list.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US">Thank you,<o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ascii-font-family:=
Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New =
Roman&quot;;color:#1F497D;mso-ansi-language:EN-US">--Bruno<o:p></o:p></span=
></p>
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yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;Ron<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:35.4pt;margin-bottom:.=
0001pt;text-align:center">
<span lang=3D"EN-US" style=3D"font-size:7.0pt;color:black;mso-ansi-language=
:EN-US">Juniper Business Use Only</span><span lang=3D"EN-US" style=3D"mso-a=
nsi-language:EN-US"><o:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><b><span lang=3D"EN-US"=
 style=3D"mso-ansi-language:EN-US">From:</span></b><span lang=3D"EN-US" sty=
le=3D"mso-ansi-language:EN-US"> bruno.decraene@orange.com &lt;bruno.decraen=
e@orange.com&gt;
<br>
<b>Sent:</b> Thursday, January 16, 2020 9:00 AM<br>
<b>To:</b> Pablo Camarillo (pcamaril) &lt;pcamaril@cisco.com&gt;; Ron Bonic=
a &lt;rbonica@juniper.net&gt;<br>
<b>Cc:</b> spring@ietf.org<br>
<b>Subject:</b> RE: Introduction of draft-ietf-spring-srv6-network-programm=
ing (was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6)<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span style=3D"color:#1=
F497D">Pablo,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span style=3D"color:#1=
F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US">Thanks for the reply.<o:p></o=
:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US">I&#8217;m not seen explicitly=
 what you are proposing to address Ron&#8217;s comment, regarding the clari=
fication of this sentence in the draft.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US">May I again suggest that both=
 of you follow up to progress on a resolution to clarify the meaning of thi=
s sentence in the draft?<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US">Thanks,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US">Bruno</span><span lang=3D"EN-=
US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US" st=
yle=3D"color:#1F497D;mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><b><span lang=3D"EN-US"=
 style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&=
quot;;mso-ansi-language:EN-US">From:</span></b><span lang=3D"EN-US" style=
=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;=
mso-ansi-language:EN-US">
 Pablo Camarillo (pcamaril) [<a href=3D"mailto:pcamaril@cisco.com">mailto:p=
camaril@cisco.com</a>]
<br>
<b>Sent:</b> Tuesday, January 14, 2020 6:43 PM<br>
<b>To:</b> <a href=3D"mailto:rbonica@juniper.net">rbonica@juniper.net</a>; =
DECRAENE Bruno TGI/OLN<br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><br>
<b>Subject:</b> Introduction of draft-ietf-spring-srv6-network-programming =
(was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative adva=
ntages of SRv6)<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">(Updated the subject to reflect the new top=
ic of this thread: the introduction of this draft)<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">Bruno,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">You are correct. In essence we are saying t=
he same thing as the 3<sup>rd</sup> line of RFC8402.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US" st=
yle=3D"font-size:10.0pt;font-family:&quot;Courier New&quot;;color:black;mso=
-ansi-language:EN-US">A segment can represent any instruction, topological =
or<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US" st=
yle=3D"font-size:10.0pt;font-family:&quot;Courier New&quot;;color:black;mso=
-ansi-language:EN-US">&nbsp;&nbsp; service based.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">For example, for service programming we hav=
e a draft-ietf-spring-sr-service-programming. This goes beyond mere packet =
routing. NET-PGM provides the base and draft-ietf-spring-sr-service-program=
ming
 builds on top of that.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">Thanks,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB">Pablo<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-GB" st=
yle=3D"mso-ansi-language:EN-GB"><o:p>&nbsp;</o:p></span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><b><span lang=3D"EN-US=
" style=3D"font-size:12.0pt;color:black;mso-ansi-language:EN-US">From:
</span></b><span lang=3D"EN-US" style=3D"font-size:12.0pt;color:black;mso-a=
nsi-language:EN-US">&quot;<a href=3D"mailto:bruno.decraene@orange.com">brun=
o.decraene@orange.com</a>&quot; &lt;<a href=3D"mailto:bruno.decraene@orange=
.com">bruno.decraene@orange.com</a>&gt;<br>
<b>Date: </b>Tuesday, 14 January 2020 at 11:02<br>
<b>To: </b>Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;, &quot;Pablo Camarillo (pcamaril)&quot; &lt;<a href=3D"ma=
ilto:pcamaril@cisco.com">pcamaril@cisco.com</a>&gt;<br>
<b>Cc: </b>&quot;<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&quo=
t; &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&gt;<br>
<b>Subject: </b>RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">Hello Ron, Pablo,</span><spa=
n lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">&nbsp;</span><span lang=3D"E=
N-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><b><span lang=3D"EN-US=
" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif=
&quot;;mso-ansi-language:EN-US">From:</span></b><span lang=3D"EN-US" style=
=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;=
mso-ansi-language:EN-US">
 Ron Bonica [<a href=3D"mailto:rbonica@juniper.net">mailto:rbonica@juniper.=
net</a>]
<br>
<b>Sent:</b> Monday, January 13, 2020 9:38 PM<br>
<b>To:</b> DECRAENE Bruno TGI/OLN<br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>; Pablo Ca=
marillo (pcamaril)<br>
<b>Subject:</b> RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6</span><span lang=3D"EN-US" style=3D"mso-ansi-lang=
uage:EN-US"><o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">Hello Bruno.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">According to the network programming draft=
, &#8220;Network programming combines segment routing functions, both simpl=
e and complex, to achieve a networking objective
 that goes beyond mere packet routing.&#8221;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">Sadly, the document offers little insight =
as to what those non-routing objectives might be.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">Ron,</span><span lang=3D"EN-=
US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">Thank you for elaborating on=
 this comment. The scope of the revised comment seem to me more focused and=
 now indeed related to this document.</span><span lang=3D"EN-US" style=3D"m=
so-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">&nbsp;</span><span lang=3D"E=
N-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">Ron, Pablo,
</span><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">May I suggest that you both =
follow up to progress on a resolution on the comment on this sentence?</spa=
n><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span>=
</p>
<pre style=3D"margin-left:106.8pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"EN-US" style=3D"color:#1F497D;mso-ansi-l=
anguage:EN-US">e.g. clarify what is meant by &#8220;beyond packet routing&#=
8221;, and/or what is exactly meant by this sentence beyond what is already=
 stated in the SR architecture (which for example, but not restricted to, s=
tates that</span><span lang=3D"EN-US" style=3D"font-size:10.0pt;color:#1F49=
7D;mso-ansi-language:EN-US">&nbsp; &#8220;</span><span lang=3D"EN-US" style=
=3D"font-size:10.0pt;font-family:&quot;Courier New&quot;;mso-ansi-language:=
EN-US">A segment can represent any instruction, topological or service base=
d.&#8221;</span><span lang=3D"EN-US" style=3D"font-size:10.0pt;color:#1F497=
D;mso-ansi-language:EN-US"> )</span><span lang=3D"EN-US" style=3D"font-size=
:10.0pt;font-family:&quot;Courier New&quot;;mso-ansi-language:EN-US"><o:p><=
/o:p></span></pre>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">If this can&#8217;t be reaso=
nably clarified, worse case could possibly be to remove this sentence or fa=
ll back to a reference to the/a SR architecture
 RFC/section/sentence. As of today, I don&#8217;t assume that this point wo=
uld be a blocking point to progress that document or to delay it for a long=
 time.</span><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p></=
o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">&nbsp;</span><span lang=3D"E=
N-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">&nbsp;</span><span lang=3D"E=
N-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">Thank you,</span><span lang=
=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">--Bruno</span><span lang=3D"=
EN-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">&nbsp;</span><span lang=3D"E=
N-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:106.8pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">&nbsp;</span><span lang=3D"E=
N-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">If SRv6 offers something beyond the mere p=
acket routing capabilities of SR-MPLS, the network programming draft would =
be the most appropriate place to mention
 it. Otherwise, SRv6 is just an IPv6 version of SR-MPLS.<o:p></o:p></span><=
/p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></span=
></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:142.2pt;margin-bottom:=
.0001pt;text-align:center">
<span lang=3D"EN-US" style=3D"font-size:7.0pt;color:black;mso-ansi-language=
:EN-US">Juniper Business Use Only</span><span lang=3D"EN-US" style=3D"mso-a=
nsi-language:EN-US"><o:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><b><span lang=3D"EN-US=
" style=3D"mso-ansi-language:EN-US">From:</span></b><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US">
<a href=3D"mailto:bruno.decraene@orange.com">bruno.decraene@orange.com</a> =
&lt;<a href=3D"mailto:bruno.decraene@orange.com">bruno.decraene@orange.com<=
/a>&gt;
<br>
<b>Sent:</b> Monday, January 13, 2020 8:12 AM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;<br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>; Pablo Ca=
marillo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco.com">pcamaril@cisco=
.com</a>&gt;<br>
<b>Subject:</b> RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">Ron,</span><span lang=3D"EN-=
US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">&nbsp;</span><span lang=3D"E=
N-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">&nbsp;</span><span lang=3D"E=
N-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><b><span lang=3D"EN-US=
" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif=
&quot;;mso-ansi-language:EN-US">From:</span></b><span lang=3D"EN-US" style=
=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;=
mso-ansi-language:EN-US">
 spring [</span><span lang=3D"ES" style=3D"mso-ansi-language:ES"><a href=3D=
"mailto:spring-bounces@ietf.org"><span lang=3D"EN-US" style=3D"font-size:10=
.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;mso-ansi-languag=
e:EN-US">mailto:spring-bounces@ietf.org</span></a></span><span lang=3D"EN-U=
S" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-seri=
f&quot;;mso-ansi-language:EN-US">]
<b>On Behalf Of </b>Ron Bonica<br>
<b>Sent:</b> Friday, January 10, 2020 8:14 PM<br>
<b>To:</b> Pablo Camarillo (pcamaril)<br>
<b>Cc:</b> </span><span lang=3D"ES" style=3D"mso-ansi-language:ES"><a href=
=3D"mailto:spring@ietf.org"><span lang=3D"EN-US" style=3D"font-size:10.0pt;=
font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;mso-ansi-language:EN-=
US">spring@ietf.org</span></a></span><span lang=3D"EN-US" style=3D"font-siz=
e:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;mso-ansi-lan=
guage:EN-US"><br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6</span><span lang=3D"EN-US" style=3D"mso-ansi-lang=
uage:EN-US"><o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">Chairs,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">I believe that we have two independent req=
uests for a comparison of the benefits of SRv6 over SR-MPLS in the network =
programming draft.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">&nbsp;</span><span lang=3D"E=
N-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">A comparison of the benefits=
 of SRv6 over SR-MPLS is one thing that could possibly be discussed if ther=
e is interest from the WG.</span><span lang=3D"EN-US" style=3D"mso-ansi-lan=
guage:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">E.g. to help network provide=
r make a choice, or in the context of &#8220;beyond SRv6&#8221; to help the=
 WG identify the benefit/cost analysis of existing solutions
 and what we want to achieve with new/extensions to SR data planes. </span>=
<span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></=
p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">&nbsp;</span><span lang=3D"E=
N-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">But why do you think that th=
is would belong to draft-ietf-spring-srv6-network-programming?
</span><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">&nbsp;</span><span lang=3D"E=
N-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">Thanks,</span><span lang=3D"=
EN-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">--Bruno</span><span lang=3D"=
EN-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.2pt"><span lang=3D"EN-US" s=
tyle=3D"color:#1F497D;mso-ansi-language:EN-US">&nbsp;</span><span lang=3D"E=
N-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;Ron<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:177.6pt;margin-bottom:=
.0001pt;text-align:center">
<span lang=3D"EN-US" style=3D"font-size:7.0pt;color:black;mso-ansi-language=
:EN-US">Juniper Business Use Only</span><span lang=3D"EN-US" style=3D"mso-a=
nsi-language:EN-US"><o:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><b><span lang=3D"EN-US=
" style=3D"mso-ansi-language:EN-US">From:</span></b><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"> spring &lt;</span><span lang=3D"ES" style=
=3D"mso-ansi-language:ES"><a href=3D"mailto:spring-bounces@ietf.org"><span =
lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">spring-bounces@ietf.org</s=
pan></a></span><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">&gt;
<b>On Behalf Of </b>Pablo Camarillo (pcamaril)<br>
<b>Sent:</b> Friday, January 10, 2020 11:55 AM<br>
<b>To:</b> Ron Bonica &lt;</span><span lang=3D"ES" style=3D"mso-ansi-langua=
ge:ES"><a href=3D"mailto:rbonica@juniper.net"><span lang=3D"EN-US" style=3D=
"mso-ansi-language:EN-US">rbonica@juniper.net</span></a></span><span lang=
=3D"EN-US" style=3D"mso-ansi-language:EN-US">&gt;<br>
<b>Cc:</b> </span><span lang=3D"ES" style=3D"mso-ansi-language:ES"><a href=
=3D"mailto:spring@ietf.org"><span lang=3D"EN-US" style=3D"mso-ansi-language=
:EN-US">spring@ietf.org</span></a></span><span lang=3D"EN-US" style=3D"mso-=
ansi-language:EN-US"><br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">Ron,
</span><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">If you want to discuss your analysis pleas=
e let&#8217;s do so in a separate email thread out of the context of the Wo=
rking Group Last Call of draft-ietf-spring-srv6-network-programming.<o:p></=
o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">As I said before:
</span><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-GB">draft-ietf-sp=
ring-srv6-network-programming is a Standards Track document and this topic =
is not about any standardization, hence out of scope of this document.
</span><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">&nbsp;</span><span lang=3D"EN-US" style=3D=
"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">Same applies to other content (e.g. illust=
rations) that was formerly in network programming and we moved to a separat=
e draft since it was not standardizing anything
 at all and was merely informative.</span><span lang=3D"EN-US" style=3D"mso=
-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">&nbsp;&nbsp;</span><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">Thanks,</span><span lang=3D"EN-US" style=
=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">Pablo.</span><span lang=3D"EN-US" style=3D=
"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><span lang=3D"EN-GB" s=
tyle=3D"font-size:24.0pt;mso-ansi-language:EN-GB">&nbsp;</span><span lang=
=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><b><span lang=3D"EN-US=
" style=3D"font-size:12.0pt;color:black;mso-ansi-language:EN-US">From:
</span></b><span lang=3D"EN-US" style=3D"font-size:12.0pt;color:black;mso-a=
nsi-language:EN-US">Ron Bonica &lt;</span><span lang=3D"ES" style=3D"mso-an=
si-language:ES"><a href=3D"mailto:rbonica@juniper.net"><span lang=3D"EN-US"=
 style=3D"font-size:12.0pt;mso-ansi-language:EN-US">rbonica@juniper.net</sp=
an></a></span><span lang=3D"EN-US" style=3D"font-size:12.0pt;color:black;ms=
o-ansi-language:EN-US">&gt;<br>
<b>Date: </b>Tuesday, 7 January 2020 at 19:17<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><span lang=3D"=
ES" style=3D"mso-ansi-language:ES"><a href=3D"mailto:pcamaril@cisco.com"><s=
pan lang=3D"EN-US" style=3D"font-size:12.0pt;mso-ansi-language:EN-US">pcama=
ril@cisco.com</span></a></span><span lang=3D"EN-US" style=3D"font-size:12.0=
pt;color:black;mso-ansi-language:EN-US">&gt;<br>
<b>Cc: </b>SPRING WG &lt;</span><span lang=3D"ES" style=3D"mso-ansi-languag=
e:ES"><a href=3D"mailto:spring@ietf.org"><span lang=3D"EN-US" style=3D"font=
-size:12.0pt;mso-ansi-language:EN-US">spring@ietf.org</span></a></span><spa=
n lang=3D"EN-US" style=3D"font-size:12.0pt;color:black;mso-ansi-language:EN=
-US">&gt;<br>
<b>Subject: </b>RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6</span><span lang=3D"EN-US" style=3D"mso-ansi-lang=
uage:EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">Pablo,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">RFC 8354 reinforces my analysis in
</span><span lang=3D"ES" style=3D"mso-ansi-language:ES"><a href=3D"https://=
urldefense.com/v3/__https:/mailarchive.ietf.org/arch/msg/spring/3WGuQumIfcm=
H281nwq3s9Un6raI__;!!NEt6yMaO-gk!SolNvh35q4NS-PTVWOxXAzbTnMHltfvPWi_OSjhMYk=
mm_NucR6imYrrLvc35Kat6$"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN=
-US">https://mailarchive.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6r=
aI</span></a></span><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">.
 Are you saying that you agree with this analysis?<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ro=
n<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0cm;margin-bottom:0cm;margin-left:179.4pt;margin-botto=
m:.0001pt;text-align:center">
<span lang=3D"EN-US" style=3D"font-size:7.0pt;color:black;mso-ansi-language=
:EN-US">Juniper Business Use Only</span><span lang=3D"EN-US" style=3D"mso-a=
nsi-language:EN-US"><o:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><b><span lang=3D"EN-US=
" style=3D"mso-ansi-language:EN-US">From:</span></b><span lang=3D"EN-US" st=
yle=3D"mso-ansi-language:EN-US"> Pablo Camarillo (pcamaril) &lt;</span><spa=
n lang=3D"ES" style=3D"mso-ansi-language:ES"><a href=3D"mailto:pcamaril@cis=
co.com"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">pcamaril@cis=
co.com</span></a></span><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-=
US">&gt;
<br>
<b>Sent:</b> Tuesday, January 7, 2020 4:17 AM<br>
<b>To:</b> Ron Bonica &lt;</span><span lang=3D"ES" style=3D"mso-ansi-langua=
ge:ES"><a href=3D"mailto:rbonica@juniper.net"><span lang=3D"EN-US" style=3D=
"mso-ansi-language:EN-US">rbonica@juniper.net</span></a></span><span lang=
=3D"EN-US" style=3D"mso-ansi-language:EN-US">&gt;<br>
<b>Cc:</b> SPRING WG &lt;</span><span lang=3D"ES" style=3D"mso-ansi-languag=
e:ES"><a href=3D"mailto:spring@ietf.org"><span lang=3D"EN-US" style=3D"mso-=
ansi-language:EN-US">spring@ietf.org</span></a></span><span lang=3D"EN-US" =
style=3D"mso-ansi-language:EN-US">&gt;<br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">Ron,</span><span lang=3D"EN-US" style=3D"m=
so-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">&nbsp;</span><span lang=3D"EN-US" style=3D=
"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">SPRING has already done this work and docu=
mented the SRv6 use-cases in RFC8354 before progressing with the SRv6 stand=
ardization.</span><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o=
:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">&nbsp;</span><span lang=3D"EN-US" style=3D=
"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">Further on, draft-ietf-spring-srv6-network=
-programming is a Standards Track document.
</span><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">I fail to see how a cite from RFC8354 or a=
ny other text on &#8220;SRv6 vs SR-MPLS&#8221; standardises anything at all.
</span><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">Note that we have already removed text fro=
m draft-ietf-spring-srv6-network-programming (e.g. illustrations) because i=
t was not standardising anything.</span><span lang=3D"EN-US" style=3D"mso-a=
nsi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">&nbsp;</span><span lang=3D"EN-US" style=3D=
"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">Thank you for the suggestion,</span><span =
lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">Pablo.</span><span lang=3D"EN-US" style=3D=
"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-GB" s=
tyle=3D"mso-ansi-language:EN-GB">&nbsp;</span><span lang=3D"EN-US" style=3D=
"mso-ansi-language:EN-US"><o:p></o:p></span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><b><span lang=3D"EN-US=
" style=3D"font-size:12.0pt;color:black;mso-ansi-language:EN-US">From:
</span></b><span lang=3D"EN-US" style=3D"font-size:12.0pt;color:black;mso-a=
nsi-language:EN-US">spring &lt;</span><span lang=3D"ES" style=3D"mso-ansi-l=
anguage:ES"><a href=3D"mailto:spring-bounces@ietf.org"><span lang=3D"EN-US"=
 style=3D"font-size:12.0pt;mso-ansi-language:EN-US">spring-bounces@ietf.org=
</span></a></span><span lang=3D"EN-US" style=3D"font-size:12.0pt;color:blac=
k;mso-ansi-language:EN-US">&gt;
 on behalf of Ron Bonica &lt;</span><span lang=3D"ES" style=3D"mso-ansi-lan=
guage:ES"><a href=3D"mailto:rbonica=3D40juniper.net@dmarc.ietf.org"><span l=
ang=3D"EN-US" style=3D"font-size:12.0pt;mso-ansi-language:EN-US">rbonica=3D=
40juniper.net@dmarc.ietf.org</span></a></span><span lang=3D"EN-US" style=3D=
"font-size:12.0pt;color:black;mso-ansi-language:EN-US">&gt;<br>
<b>Date: </b>Monday, 30 December 2019 at 11:08<br>
<b>To: </b>SPRING WG &lt;</span><span lang=3D"ES" style=3D"mso-ansi-languag=
e:ES"><a href=3D"mailto:spring@ietf.org"><span lang=3D"EN-US" style=3D"font=
-size:12.0pt;mso-ansi-language:EN-US">spring@ietf.org</span></a></span><spa=
n lang=3D"EN-US" style=3D"font-size:12.0pt;color:black;mso-ansi-language:EN=
-US">&gt;<br>
<b>Subject: </b>[spring] draft-ietf-spring-srv6-network-programming: Relati=
ve advantages of SRv6</span><span lang=3D"EN-US" style=3D"mso-ansi-language=
:EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">Pablo,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">Would you consider adding a short section =
to the draft explaining the relative advantages of SRv6 over SR-MPLS? This =
section would explain why an network operator
 would deploy SRv6 instead of SR-MPLS.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ron<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:179.4pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0cm;margin-bottom:0cm;margin-left:179.4pt;margin-botto=
m:.0001pt;text-align:center;margin-bottom:..0001pt">
<span lang=3D"EN-US" style=3D"font-size:7.0pt;color:black;mso-ansi-language=
:EN-US">Juniper Business Use Only</span><span lang=3D"EN-US" style=3D"mso-a=
nsi-language:EN-US"><o:p></o:p></span></p>
<div id=3D"ms-outlook-mobile-signature">
<div>
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">&nbsp;<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:177.6pt"><span lang=3D"EN-US" s=
tyle=3D"mso-ansi-language:EN-US">Please excuse any typos, sent from my 'sma=
rt'phone.<o:p></o:p></span></p>
</div>
<pre style=3D"margin-left:142.2pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-fa=
mily:&quot;Courier New&quot;;mso-ansi-language:EN-US">_____________________=
___________________________________________________________________________=
_________________________<o:p></o:p></span></pre>
<pre style=3D"margin-left:142.2pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-fa=
mily:&quot;Courier New&quot;;mso-ansi-language:EN-US">&nbsp;<o:p></o:p></sp=
an></pre>
<pre style=3D"margin-left:142.2pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-fa=
mily:&quot;Courier New&quot;;mso-ansi-language:EN-US">Ce message et ses pie=
ces jointes peuvent contenir des informations confidentielles ou privilegie=
es et ne doivent donc<o:p></o:p></span></pre>
<pre style=3D"margin-left:142.2pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"ES" style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;;mso-ansi-language:ES">pas etre diffuses, exploite=
s ou copies sans autorisation. Si vous avez recu ce message par erreur, veu=
illez le signaler<o:p></o:p></span></pre>
<pre style=3D"margin-left:142.2pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"ES" style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;;mso-ansi-language:ES">a l'expediteur et le detrui=
re ainsi que les pieces jointes. Les messages electroniques etant susceptib=
les d'alteration,<o:p></o:p></span></pre>
<pre style=3D"margin-left:142.2pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"ES" style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;;mso-ansi-language:ES">Orange decline toute respon=
sabilite si ce message a ete altere, deforme ou falsifie. Merci.<o:p></o:p>=
</span></pre>
<pre style=3D"margin-left:142.2pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"ES" style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;;mso-ansi-language:ES">&nbsp;<o:p></o:p></span></p=
re>
<pre style=3D"margin-left:142.2pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-fa=
mily:&quot;Courier New&quot;;mso-ansi-language:EN-US">This message and its =
attachments may contain confidential or privileged information that may be =
protected by law;<o:p></o:p></span></pre>
<pre style=3D"margin-left:142.2pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-fa=
mily:&quot;Courier New&quot;;mso-ansi-language:EN-US">they should not be di=
stributed, used or copied without authorisation.<o:p></o:p></span></pre>
<pre style=3D"margin-left:142.2pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-fa=
mily:&quot;Courier New&quot;;mso-ansi-language:EN-US">If you have received =
this email in error, please notify the sender and delete this message and i=
ts attachments.<o:p></o:p></span></pre>
<pre style=3D"margin-left:142.2pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-fa=
mily:&quot;Courier New&quot;;mso-ansi-language:EN-US">As emails may be alte=
red, Orange is not liable for messages that have been modified, changed or =
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<pre style=3D"margin-left:142.2pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-fa=
mily:&quot;Courier New&quot;;mso-ansi-language:EN-US">Thank you.<o:p></o:p>=
</span></pre>
<pre style=3D"margin-left:106.8pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-fa=
mily:&quot;Courier New&quot;;mso-ansi-language:EN-US">_____________________=
___________________________________________________________________________=
_________________________<o:p></o:p></span></pre>
<pre style=3D"margin-left:106.8pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-fa=
mily:&quot;Courier New&quot;;mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></sp=
an></pre>
<pre style=3D"margin-left:106.8pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-fa=
mily:&quot;Courier New&quot;;mso-ansi-language:EN-US">Ce message et ses pie=
ces jointes peuvent contenir des informations confidentielles ou privilegie=
es et ne doivent donc<o:p></o:p></span></pre>
<pre style=3D"margin-left:106.8pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"ES" style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;;mso-ansi-language:ES">pas etre diffuses, exploite=
s ou copies sans autorisation. Si vous avez recu ce message par erreur, veu=
illez le signaler<o:p></o:p></span></pre>
<pre style=3D"margin-left:106.8pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"ES" style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;;mso-ansi-language:ES">a l'expediteur et le detrui=
re ainsi que les pieces jointes. Les messages electroniques etant susceptib=
les d'alteration,<o:p></o:p></span></pre>
<pre style=3D"margin-left:106.8pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"ES" style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;;mso-ansi-language:ES">Orange decline toute respon=
sabilite si ce message a ete altere, deforme ou falsifie. Merci.<o:p></o:p>=
</span></pre>
<pre style=3D"margin-left:106.8pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"ES" style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;;mso-ansi-language:ES"><o:p>&nbsp;</o:p></span></p=
re>
<pre style=3D"margin-left:106.8pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-fa=
mily:&quot;Courier New&quot;;mso-ansi-language:EN-US">This message and its =
attachments may contain confidential or privileged information that may be =
protected by law;<o:p></o:p></span></pre>
<pre style=3D"margin-left:106.8pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-fa=
mily:&quot;Courier New&quot;;mso-ansi-language:EN-US">they should not be di=
stributed, used or copied without authorisation.<o:p></o:p></span></pre>
<pre style=3D"margin-left:106.8pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-fa=
mily:&quot;Courier New&quot;;mso-ansi-language:EN-US">If you have received =
this email in error, please notify the sender and delete this message and i=
ts attachments.<o:p></o:p></span></pre>
<pre style=3D"margin-left:106.8pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-fa=
mily:&quot;Courier New&quot;;mso-ansi-language:EN-US">As emails may be alte=
red, Orange is not liable for messages that have been modified, changed or =
falsified.<o:p></o:p></span></pre>
<pre style=3D"margin-left:106.8pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 2=
29.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.=
2pt 687.0pt 732.8pt"><span lang=3D"ES" style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;;mso-ansi-language:ES">Thank you.<o:p></o:p></span=
></pre>
<pre style=3D"margin-left:35.4pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 22=
9.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2=
pt 687.0pt 732.8pt">_______________________________________________________=
__________________________________________________________________<o:p></o:=
p></pre>
<pre style=3D"margin-left:35.4pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 22=
9.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2=
pt 687.0pt 732.8pt"><o:p>&nbsp;</o:p></pre>
<pre style=3D"margin-left:35.4pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 22=
9.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2=
pt 687.0pt 732.8pt">Ce message et ses pieces jointes peuvent contenir des i=
nformations confidentielles ou privilegiees et ne doivent donc<o:p></o:p></=
pre>
<pre style=3D"margin-left:35.4pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 22=
9.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2=
pt 687.0pt 732.8pt">pas etre diffuses, exploites ou copies sans autorisatio=
n. Si vous avez recu ce message par erreur, veuillez le signaler<o:p></o:p>=
</pre>
<pre style=3D"margin-left:35.4pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 22=
9.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2=
pt 687.0pt 732.8pt">a l'expediteur et le detruire ainsi que les pieces join=
tes. Les messages electroniques etant susceptibles d'alteration,<o:p></o:p>=
</pre>
<pre style=3D"margin-left:35.4pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 22=
9.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2=
pt 687.0pt 732.8pt">Orange decline toute responsabilite si ce message a ete=
 altere, deforme ou falsifie. Merci.<o:p></o:p></pre>
<pre style=3D"margin-left:35.4pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 22=
9.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2=
pt 687.0pt 732.8pt"><o:p>&nbsp;</o:p></pre>
<pre style=3D"margin-left:35.4pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 22=
9.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2=
pt 687.0pt 732.8pt">This message and its attachments may contain confidenti=
al or privileged information that may be protected by law;<o:p></o:p></pre>
<pre style=3D"margin-left:35.4pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 22=
9.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2=
pt 687.0pt 732.8pt">they should not be distributed, used or copied without =
authorisation.<o:p></o:p></pre>
<pre style=3D"margin-left:35.4pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 22=
9.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2=
pt 687.0pt 732.8pt">If you have received this email in error, please notify=
 the sender and delete this message and its attachments.<o:p></o:p></pre>
<pre style=3D"margin-left:35.4pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 22=
9.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2=
pt 687.0pt 732.8pt">As emails may be altered, Orange is not liable for mess=
ages that have been modified, changed or falsified.<o:p></o:p></pre>
<pre style=3D"margin-left:35.4pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 22=
9.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2=
pt 687.0pt 732.8pt">Thank you.<o:p></o:p></pre>
</div>
<PRE>______________________________________________________________________=
___________________________________________________

Ce message et ses pieces jointes peuvent contenir des informations confiden=
tielles ou privilegiees et ne doivent donc
pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler
a l'expediteur et le detruire ainsi que les pieces jointes. Les messages el=
ectroniques etant susceptibles d'alteration,
Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.

This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;
they should not be distributed, used or copied without authorisation.
If you have received this email in error, please notify the sender and dele=
te this message and its attachments.
As emails may be altered, Orange is not liable for messages that have been =
modified, changed or falsified.
Thank you.
</PRE></body>
</html>

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Subject: Re: [spring] SRv6's new deployment status information at OSS-fields.
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Thank you Hiroki, yes it=E2=80=99s a great news indeed!

I=E2=80=99d be happy to capture this (and your coming outcomes) in the next r=
evision of srv6-deployment status draft.

Cheers,
--satoru

> On Jan 17, 2020, at 20:16, Hiroki Shirokura <slank.dev@gmail.com> wrote:
>=20
> =EF=BB=BF
> Dear all SRv6-ers
> I'm Hiorki working on developing SRv6 DCN and routing=20
> software about SRv6.
> I want to inform you a bit-news for SRv6 OpenSource implementation.
> I contributed code to ExaBGP to support parsing and=20
> advertising Prefix-SID for SRv6 L3VPN (especially type-4 and type-5)=20
> and that was already merged and informed by ExaBGP community [1,2].
> This is first-SRv6-BGP-cplane as OSS, isn't it ;)
> And It's already reflected on segment-routing.net with=20
> support by Ahmed. (thx Ahmed!!) [3]
> **Can you reflect this deployment update to draft?**
> - [1] https://twitter.com/exabgp/status/1216849537706446856
> - [2] https://github.com/Exa-Networks/exabgp/releases/tag/4.2.0
> - [3] https://www.segment-routing.net/open-software/exabgp/
> Great thanks, I'm crazy happy to dive this fantastic community and contrib=
ute SRv6. :)
>=20
> [P.S. Just FYI]
> Also I'm trying to contribute to another OSS (FRRouting and wireshark).
> That is currently on review. If that will be completed, FRR will be=20
> able to support BGP VPNv4 with SRv6 backend (Prefix-sid type-4,5=20
> both is supported). And wireshark will be able to dissect=20
> BGP-Prefix-SID path-attribute for SRv6-VPN (type-4,5).
> If some updates occurred, I'll inform to here.
>=20
> cheers
> -- Hiroki / slankdev
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring

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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto">Thank you Hiroki, yes it=E2=80=99s a great n=
ews indeed!<div><br></div><div>I=E2=80=99d be happy to capture this (and you=
r coming outcomes) in the next revision of srv6-deployment status draft.<br>=
<br>Cheers,<br><div dir=3D"ltr">--satoru</div><div dir=3D"ltr"><br><blockquo=
te type=3D"cite">On Jan 17, 2020, at 20:16, Hiroki Shirokura &lt;slank.dev@g=
mail.com&gt; wrote:<br><br></blockquote></div><blockquote type=3D"cite"><div=
 dir=3D"ltr">=EF=BB=BF<div dir=3D"ltr"><pre class=3D"gmail-c-mrkdwn__pre" st=
yle=3D"box-sizing:inherit;margin-top:4px;margin-bottom:4px;padding:8px;font-=
size:12px;line-height:1.50001;font-variant-ligatures:none;white-space:pre-wr=
ap;word-break:normal;border-radius:4px;color:rgb(29,28,29);font-family:Monac=
o,Menlo,Consolas,&quot;Courier New&quot;,monospace">Dear all SRv6-ers</pre><=
pre class=3D"gmail-c-mrkdwn__pre" style=3D"box-sizing:inherit;margin-top:4px=
;margin-bottom:4px;padding:8px;font-size:12px;line-height:1.50001;font-varia=
nt-ligatures:none;white-space:pre-wrap;word-break:normal;border-radius:4px;c=
olor:rgb(29,28,29);font-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;=
,monospace"><span class=3D"gmail-c-mrkdwn__br" style=3D"box-sizing:inherit;d=
isplay:block;height:unset"></span>I'm Hiorki working on developing SRv6 DCN a=
nd routing=20
software about SRv6.</pre><pre class=3D"gmail-c-mrkdwn__pre" style=3D"box-si=
zing:inherit;margin-top:4px;margin-bottom:4px;padding:8px;font-size:12px;lin=
e-height:1.50001;font-variant-ligatures:none;white-space:pre-wrap;word-break=
:normal;border-radius:4px;color:rgb(29,28,29);font-family:Monaco,Menlo,Conso=
las,&quot;Courier New&quot;,monospace">I want to inform you a bit-news for S=
Rv6 OpenSource implementation.
I contributed code to ExaBGP to support parsing and=20
advertising Prefix-SID for SRv6 L3VPN (especially type-4 and type-5)=20
and that was already merged and informed by ExaBGP community [1,2].
This is first-SRv6-BGP-cplane as OSS, isn't it ;)</pre><pre class=3D"gmail-c=
-mrkdwn__pre" style=3D"box-sizing:inherit;margin-top:4px;margin-bottom:4px;p=
adding:8px;font-size:12px;line-height:1.50001;font-variant-ligatures:none;wh=
ite-space:pre-wrap;word-break:normal;border-radius:4px;color:rgb(29,28,29);f=
ont-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;,monospace"><span cl=
ass=3D"gmail-c-mrkdwn__br" style=3D"box-sizing:inherit;display:block;height:=
unset"></span>And It's already reflected on <a target=3D"_blank" class=3D"gm=
ail-c-link" href=3D"http://segment-routing.net/" rel=3D"noopener noreferrer"=
 style=3D"box-sizing:inherit;color:inherit;text-decoration-line:none">segmen=
t-routing.net</a> with=20
support by Ahmed. (thx Ahmed!!) [3]
**Can you reflect this deployment update to draft?**
</pre><pre class=3D"gmail-c-mrkdwn__pre" style=3D"box-sizing:inherit;margin-=
top:4px;margin-bottom:4px;padding:8px;font-size:12px;line-height:1.50001;fon=
t-variant-ligatures:none;white-space:pre-wrap;word-break:normal;border-radiu=
s:4px;color:rgb(29,28,29);font-family:Monaco,Menlo,Consolas,&quot;Courier Ne=
w&quot;,monospace">- [1] <a target=3D"_blank" class=3D"gmail-c-link" href=3D=
"https://twitter.com/exabgp/status/1216849537706446856" rel=3D"noopener nore=
ferrer" style=3D"box-sizing:inherit;color:inherit;text-decoration-line:none"=
>https://twitter.com/exabgp/status/1216849537706446856</a><br style=3D"box-s=
izing:inherit">- [2] <a target=3D"_blank" class=3D"gmail-c-link" href=3D"htt=
ps://github.com/Exa-Networks/exabgp/releases/tag/4.2.0" rel=3D"noopener nore=
ferrer" style=3D"box-sizing:inherit;color:inherit;text-decoration-line:none"=
>https://github.com/Exa-Networks/exabgp/releases/tag/4.2.0</a><br style=3D"b=
ox-sizing:inherit">- [3] <a target=3D"_blank" class=3D"gmail-c-link" href=3D=
"https://www.segment-routing.net/open-software/exabgp/" rel=3D"noopener nore=
ferrer" style=3D"box-sizing:inherit;color:inherit;text-decoration-line:none"=
>https://www.segment-routing.net/open-software/exabgp/</a></pre><pre class=3D=
"gmail-c-mrkdwn__pre" style=3D"box-sizing:inherit;margin-top:4px;margin-bott=
om:4px;padding:8px;font-size:12px;line-height:1.50001;font-variant-ligatures=
:none;white-space:pre-wrap;word-break:normal;border-radius:4px;color:rgb(29,=
28,29);font-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;,monospace">=
Great thanks, I'm crazy happy to dive this fantastic community and contribut=
e SRv6. :)
<br style=3D"box-sizing:inherit">[P.S. Just FYI]<br style=3D"box-sizing:inhe=
rit">Also I'm trying to contribute to another OSS (FRRouting and wireshark).=

That is currently on review. If that will be completed, FRR will be=20
able to support BGP VPNv4 with SRv6 backend (Prefix-sid type-4,5=20
both is supported). And wireshark will be able to dissect=20
BGP-Prefix-SID path-attribute for SRv6-VPN (type-4,5).
If some updates occurred, I'll inform to here.

<span class=3D"gmail-c-mrkdwn__br" style=3D"box-sizing:inherit;display:block=
;height:unset"></span>cheers<br style=3D"box-sizing:inherit">-- Hiroki / sla=
nkdev</pre></div>
<span>_______________________________________________</span><br><span>spring=
 mailing list</span><br><span>spring@ietf.org</span><br><span>https://www.ie=
tf.org/mailman/listinfo/spring</span><br></div></blockquote></div></body></h=
tml>=

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In-Reply-To: <70A6F938-29B0-473E-8559-7E20C7E992BD@cisco.com>
From: Greg Mirsky <gregimirsky@gmail.com>
Date: Sun, 19 Jan 2020 11:28:22 -0800
Message-ID: <CA+RyBmVbYObSvcf9frfr8LBhKU5cmJ99o8mNJr_=CvH_z7j6Gw@mail.gmail.com>
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
Cc: "spring@ietf.org" <spring@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/it7_NldExQYb6HdHNd1PiOjE1H0>
Subject: Re: [spring] WGLC - draft-ietf-spring-srv6-network-programming
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Hi Pablo,
thank you for sharing your opinion. I understand that you believe that
draft-ietf-6man-spring-srv6-oam will not change and will be published with
defining the O-flag as
      O-flag: OAM flag.  When set, it indicates that this packet is an
      operations and management (OAM) packet.
I, on the other hand, am much less certain that that draft and SRv6 OAM, in
general, require the special flag in SRH. I believe that progressing
the draft-ietf-spring-srv6-network-programming with the current text and
the informative reference increases the likelihood that an Errata must be
filed one the SRv6 OAM draft is published.
And as we're discussing a sub-section in the Operation section, I've got
few questions on counters, hope you don't mind:

   - As this is part of the operational considerations, should there be any
   recommendation on the length of the counters?
   - Also, the usual drawback of detailed statistics to characterize a flow
   is scaling. Any consideration and recommendation on that?
   - And last. I didn't find any of these counters being discussed
   in draft-ietf-6man-spring-srv6-oam. Perhaps you can help me with a
   reference to the SRv6 document that uses them.

Regards,
Greg


On Mon, Jan 13, 2020 at 10:23 AM Pablo Camarillo (pcamaril) <
pcamaril@cisco.com> wrote:

> Hi Greg,
>
>
>
> Inline.
>
>
>
> Thank you,
>
> Pablo.
>
>
>
> *From: *Greg Mirsky <gregimirsky@gmail.com>
> *Date: *Sunday, 12 January 2020 at 04:01
> *To: *=E2=80=9CPablo Camarillo (pcamaril)=E2=80=9D <pcamaril@cisco.com>
> *Cc: *=E2=80=9Cspring@ietf.org=E2=80=9D <spring@ietf.org>
> *Subject: *Re: WGLC =E2=80=93 draft-ietf-spring-srv6-network-programming
>
>
>
> Hi Pablo,
>
> thank you for your expedient response. Please find my new notes under
> GIM>> tag below in-line.
>
>
>
> Regards,
>
> Greg
>
>
>
> On Fri, Jan 10, 2020 at 1:09 PM Pablo Camarillo (pcamaril) <
> pcamaril@cisco.com> wrote:
>
> Hi Greg,
>
>
>
> Inline.
>
>
>
> Thanks,
>
> Pablo.
>
>
>
> *From: *Greg Mirsky <gregimirsky@gmail.com>
> *Date: *Tuesday, 7 January 2020 at 21:01
> *To: *Bruno Decraene <bruno.decraene@orange.com>
> *Cc: *SPRING WG List <spring@ietf.org>, =E2=80=9C6man@ietf.org=E2=80=9D <=
6man@ietf.org>,
> draft-ietf-spring-srv6-network-programming <
> draft-ietf-spring-srv6-network-programming@ietf.org>
> *Subject: *Re: WGLC =E2=80=93 draft-ietf-spring-srv6-network-programming
> *Resent from: *<alias-bounces@ietf.org>
> *Resent to: *<cf@cisco.com>, <pcamaril@cisco.com>, <john@leddy.net>, <
> daniel.voyer@bell.ca>, <satoru.matsushima@g.softbank.co.jp>, <
> lizhenbin@huawei.com>
> *Resent date: *Tuesday, 7 January 2020 at 21:01
>
>
>
> Dear Authors, WG Chairs, et al.,
>
> I hope I=E2=80=99m not too late with my comments and questions on the doc=
ument.
> Please kindly consider them as WG LC comments:
>
> =C2=B7         I have a question regarding the following pseudo-code:
>
>   S08.   Max_LE =3D (Hdr Ext Len / 2) =E2=80=93 1
>
>   S09.   If ((Last Entry > max_LE) or (Segments Left > (Last Entry+1)) {
>
>   S10.      Send an ICMP Parameter Problem to the Source Address,
>
>                Code 0 (Erroneous header field encountered),
>
>                Pointer set to the Segments Left field.
>
>                Interrupt packet processing and discard the packet.
>
>   S11.   }
>
>
>
> According to RFC 8200, Hdr Ext Len is the length of the extension header
> in 8-octet units, not including the first 8 octets. Thus, as I understand=
,
> max_LE is the length in 8-octet units of half of the extension header les=
s
> one. On the other hand, Last Entry and Segments Left are indices. Hence m=
y
> question, What is being compared in line S09 ( Last Entry > max_LE)? Leng=
th
> and index? If the goal is to use Hdr Ext Len to calculate the number of
> entries in the header, then what assumption is used in S08? Is it that th=
e
> entry=E2=80=99s length is always and only 128 bits, i.e. 16 octets? I bel=
ieve that
> using such an assumption is too narrowing and limiting to SRH.
>
>
>
> PC: This has already been discussed with Adrian. Please check this thread=
:
> https://mailarchive.ietf.org/arch/msg/spring/IOA_4nlNPacD2v7Jue2dkGeOABk
>
> GIM>> Thank you for the reference. In some aspects, part of my statement
> is repeating your answer to Adrain. The only length on an element in SRH
> considered is 128 bits, the length of IPv6 address. I think that your
> explanation of how you have arrived at th following formula
>
>     S08.   Max_LE =3D (Hdr Ext Len / 2) =E2=80=93 1
>
>  will benefit the document.
>
> My question to you and SPRING WG goes beyond this scenario. Considering
> presented in Singapore Unified Identifier proposals (
> draft-mirsky-6man-unified-id-sr
> <https://datatracker.ietf.org/doc/draft-mirsky-6man-unified-id-sr/> and
> draft-wmsaxw-6man-usid-id-use
> <https://datatracker.ietf.org/doc/draft-gmsm-bess-evpn-bfd/?include_text=
=3D1>),
> I believe other scenarios of using SRH, with elements of length other tha=
n
> 128 bits should be accommodated, e.g., 32 bits-long elements.
>
> i.
>
>
>
> PC: It is up to the draft-mirsky authors to standardize in their draft th=
e
> changes to the SRH processing. As per today the draft-mirsky proposal is
> still an individual document.
>
>
>
> =C2=B7         Another question is to Section 6.3. What value do you see =
in
> this section? I've noticed that draft-ietf-6man-spring-srv6-oam is in the
> Informational References section. I agree with that for the first sentenc=
e
> in the section. But I believe that the second sentence that refers to the
> new O-bit and OAM behaviors defined in  draft-ietf-6man-spring-srv6-oam
> requires it to be moved into the Normative References section. Unless
> you'll decide to remove the section altogether.
>
> PC: The O-bit and OAM behaviors described in
> draft-ietf-6man-spring-srv6-oam are not required to understand or impleme=
nt
> the technology described in draft-ietf-spring-srv6-network-programming.
> However, they are relevant as to provide additional information to the
> reader. Why would it be a normative reference?
>
> GIM>> Ali and I are discussing several aspects of
> draft-ietf-6man-spring-srv6-oam. For example, the O-bit is applicable to
> any OAM operation or to some part of them. Note that OAM apparatus usuall=
y
> considered to include Fault Management and Performance Monitoring
> protocols. Both may operate as proactive or on-demand. Is the O-bit
> applicable to all OAM methods? Then, Fault Management OAM supports
> Continuity Check, Connectivity Verification and, for some networks,
> Automatic Protection Coordination. How O-bit is used in these methods? No=
w,
> to the Performance Monitoring OAM. I think that the O-bit can be only use=
d
> in dual-ended one-way PM OAM. How O-bit may be used in single-ended two-w=
ay
> PM OAM? Can the O-bit support the Loss Measurement? As you may see, there
> are many questions to discuss and clarify in the document. I can imagine
> that the result of our work on draft-ietf-6man-spring-srv6-oam may be
> somewhat different from its current form. How to ensure synchronization
> between SRv6 programming and OAM specifications?
>
>
>
> PC: The current reference in draft-ietf-spring-srv6-network-programming
> does not explain particular mechanisms of draft-ietf-6man-spring-srv6-oam=
.
> It only says that draft-ietf-6man-spring-srv6-oam defines OAM mechanisms
> for SRv6 as well as the O-bit. This is flexible enough as to be correct
> regardless of the changes that you make during the WGLC to
> draft-ietf-6man-spring-srv6-oam.
>
>
>
> Regards,
>
> Greg
>
>
>
> On Thu, Dec 5, 2019 at 9:15 AM <bruno.decraene@orange.com> wrote:
>
> Hello SPRING,
>
>
>
> This email starts a two weeks Working Group Last Call on draft-ietf-sprin=
g-srv6-network-programming [1].
>
>
>
> Please read this document if you haven't read the most recent version, an=
d send your comments to the SPRING WG list, no later than December 20.
>
>
>
> You may copy the 6MAN WG for IPv6 related comment, but consider not dupli=
cating emails on the 6MAN mailing list for the comments which are only spri=
ng specifics.
>
>
>
> If you are raising a point which you expect will be specifically debated =
on the mailing list, consider using a specific email/thread for this point.
>
> This may help avoiding that the thread become specific to this point and =
that other points get forgotten (or that the thread get converted into para=
llel independent discussions)
>
>
>
> Thank you,
>
> Bruno
>
>
>
> [1] https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programmin=
g-05
>
>
>
>
>
> _________________________________________________________________________=
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--0000000000002f188f059c832edd
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div dir=3D"ltr">Hi Pablo,</div><div dir=3D"ltr">thank you=
 for sharing your opinion. I understand that you believe=C2=A0that draft-ie=
tf-6man-spring-srv6-oam will not change and will be published with defining=
 the O-flag as=C2=A0</div><div dir=3D"ltr">=C2=A0 =C2=A0 =C2=A0 O-flag: OAM=
 flag.=C2=A0 When set, it indicates that this packet is an<br>=C2=A0 =C2=A0=
 =C2=A0 operations and management (OAM) packet.</div><div dir=3D"ltr">I, on=
 the other hand, am much less certain that that draft and SRv6 OAM, in gene=
ral, require the special flag in SRH. I believe that progressing the=C2=A0d=
raft-ietf-spring-srv6-network-programming with the current text and the inf=
ormative reference increases the=C2=A0likelihood=C2=A0that an Errata must b=
e filed one the SRv6 OAM draft is published.</div><div dir=3D"ltr">And as w=
e&#39;re discussing a sub-section in the Operation section, I&#39;ve got fe=
w questions on counters, hope you don&#39;t mind:</div><div dir=3D"ltr"><ul=
><li>As this is part of the operational considerations, should there be any=
 recommendation on the length of the counters?</li><li>Also, the usual draw=
back of detailed statistics to characterize a flow is scaling. Any consider=
ation and recommendation on that?</li><li>And last. I didn&#39;t find any o=
f these counters being discussed in=C2=A0draft-ietf-6man-spring-srv6-oam. P=
erhaps you can help me with a reference to the SRv6 document that uses them=
.</li></ul><div>Regards,</div><div>Greg</div><div><br></div></div><br><div =
class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Mon, Jan 13,=
 2020 at 10:23 AM Pablo Camarillo (pcamaril) &lt;<a href=3D"mailto:pcamaril=
@cisco.com">pcamaril@cisco.com</a>&gt; wrote:<br></div><blockquote class=3D=
"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(2=
04,204,204);padding-left:1ex">





<div lang=3D"ES">
<div class=3D"gmail-m_-1935289737968984090WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Hi Greg,<u></u><u></u></span></=
p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Inline.<u></u><u></u></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Thank you,<u></u><u></u></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Pablo.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><u></u>=C2=A0<u></u></span></p>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(181,196,223);padding:3pt 0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><b><span lang=3D"EN-US" s=
tyle=3D"font-size:12pt;color:black">From:
</span></b><span lang=3D"EN-US" style=3D"font-size:12pt;color:black">Greg M=
irsky &lt;<a href=3D"mailto:gregimirsky@gmail.com" target=3D"_blank">gregim=
irsky@gmail.com</a>&gt;<br>
<b>Date: </b>Sunday, 12 January 2020 at 04:01<br>
<b>To: </b></span><span lang=3D"EN-US" style=3D"font-size:12pt">=E2=80=9C<s=
pan style=3D"color:black">Pablo Camarillo (pcamaril)</span>=E2=80=9D<span s=
tyle=3D"color:black"> &lt;<a href=3D"mailto:pcamaril@cisco.com" target=3D"_=
blank">pcamaril@cisco.com</a>&gt;<br>
<b>Cc: </b></span>=E2=80=9C<span style=3D"color:black"><a href=3D"mailto:sp=
ring@ietf.org" target=3D"_blank">spring@ietf.org</a></span>=E2=80=9D<span s=
tyle=3D"color:black"> &lt;<a href=3D"mailto:spring@ietf.org" target=3D"_bla=
nk">spring@ietf.org</a>&gt;<br>
<b>Subject: </b>Re: WGLC </span>=E2=80=93<span style=3D"color:black"> draft=
-ietf-spring-srv6-network-programming<u></u><u></u></span></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US"><u><=
/u>=C2=A0<u></u></span></p>
</div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">Hi P=
ablo, <u></u>
<u></u></span></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">than=
k you for your expedient response. Please find my new notes under GIM&gt;&g=
t; tag below in-line.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US"><u><=
/u>=C2=A0<u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">Rega=
rds,<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">Greg=
<u></u><u></u></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US"><u><=
/u>=C2=A0<u></u></span></p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">On F=
ri, Jan 10, 2020 at 1:09 PM Pablo Camarillo (pcamaril) &lt;</span><a href=
=3D"mailto:pcamaril@cisco.com" target=3D"_blank"><span lang=3D"EN-US">pcama=
ril@cisco.com</span></a><span lang=3D"EN-US">&gt; wrote:<u></u><u></u></spa=
n></p>
</div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0cm 0cm 0cm 6pt;margin:5pt 0c=
m 5pt 4.8pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">
<span lang=3D"EN-GB">Hi Greg,</span><span lang=3D"EN-US"><u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">
<span lang=3D"EN-GB">=C2=A0</span><span lang=3D"EN-US"><u></u><u></u></span=
></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">
<span lang=3D"EN-GB">Inline.</span><span lang=3D"EN-US"><u></u><u></u></spa=
n></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">
<span lang=3D"EN-GB">=C2=A0</span><span lang=3D"EN-US"><u></u><u></u></span=
></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">
<span lang=3D"EN-GB">Thanks,</span><span lang=3D"EN-US"><u></u><u></u></spa=
n></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">
<span lang=3D"EN-GB">Pablo.</span><span lang=3D"EN-US"><u></u><u></u></span=
></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">
<span lang=3D"EN-GB">=C2=A0</span><span lang=3D"EN-US"><u></u><u></u></span=
></p>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(181,196,223);padding:3pt 0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<b><span lang=3D"EN-US" style=3D"font-size:12pt;color:black">From: </span><=
/b><span lang=3D"EN-US" style=3D"font-size:12pt;color:black">Greg Mirsky &l=
t;</span><a href=3D"mailto:gregimirsky@gmail.com" target=3D"_blank"><span l=
ang=3D"EN-US" style=3D"font-size:12pt">gregimirsky@gmail.com</span></a><spa=
n lang=3D"EN-US" style=3D"font-size:12pt;color:black">&gt;<br>
<b>Date: </b>Tuesday, 7 January 2020 at 21:01<br>
<b>To: </b>Bruno Decraene &lt;</span><a href=3D"mailto:bruno.decraene@orang=
e.com" target=3D"_blank"><span lang=3D"EN-US" style=3D"font-size:12pt">brun=
o.decraene@orange.com</span></a><span lang=3D"EN-US" style=3D"font-size:12p=
t;color:black">&gt;<br>
<b>Cc: </b>SPRING WG List &lt;</span><a href=3D"mailto:spring@ietf.org" tar=
get=3D"_blank"><span lang=3D"EN-US" style=3D"font-size:12pt">spring@ietf.or=
g</span></a><span lang=3D"EN-US" style=3D"font-size:12pt;color:black">&gt;,
</span><span lang=3D"EN-US" style=3D"font-size:12pt">=E2=80=9C</span><a hre=
f=3D"mailto:6man@ietf.org" target=3D"_blank"><span lang=3D"EN-US" style=3D"=
font-size:12pt">6man@ietf.org</span></a><span lang=3D"EN-US" style=3D"font-=
size:12pt">=E2=80=9D<span style=3D"color:black"> &lt;</span></span><a href=
=3D"mailto:6man@ietf.org" target=3D"_blank"><span lang=3D"EN-US" style=3D"f=
ont-size:12pt">6man@ietf.org</span></a><span lang=3D"EN-US" style=3D"font-s=
ize:12pt;color:black">&gt;,
 draft-ietf-spring-srv6-network-programming &lt;</span><a href=3D"mailto:dr=
aft-ietf-spring-srv6-network-programming@ietf.org" target=3D"_blank"><span =
lang=3D"EN-US" style=3D"font-size:12pt">draft-ietf-spring-srv6-network-prog=
ramming@ietf.org</span></a><span lang=3D"EN-US" style=3D"font-size:12pt;col=
or:black">&gt;<br>
<b>Subject: </b>Re: WGLC </span><span lang=3D"EN-US" style=3D"font-size:12p=
t">=E2=80=93<span style=3D"color:black"> draft-ietf-spring-srv6-network-pro=
gramming<br>
<b>Resent from: </b>&lt;</span></span><a href=3D"mailto:alias-bounces@ietf.=
org" target=3D"_blank"><span lang=3D"EN-US" style=3D"font-size:12pt">alias-=
bounces@ietf.org</span></a><span lang=3D"EN-US" style=3D"font-size:12pt;col=
or:black">&gt;<br>
<b>Resent to: </b>&lt;</span><a href=3D"mailto:cf@cisco.com" target=3D"_bla=
nk"><span lang=3D"EN-US" style=3D"font-size:12pt">cf@cisco.com</span></a><s=
pan lang=3D"EN-US" style=3D"font-size:12pt;color:black">&gt;, &lt;</span><a=
 href=3D"mailto:pcamaril@cisco.com" target=3D"_blank"><span lang=3D"EN-US" =
style=3D"font-size:12pt">pcamaril@cisco.com</span></a><span lang=3D"EN-US" =
style=3D"font-size:12pt;color:black">&gt;,
 &lt;</span><a href=3D"mailto:john@leddy.net" target=3D"_blank"><span lang=
=3D"EN-US" style=3D"font-size:12pt">john@leddy.net</span></a><span lang=3D"=
EN-US" style=3D"font-size:12pt;color:black">&gt;, &lt;</span><a href=3D"mai=
lto:daniel.voyer@bell.ca" target=3D"_blank"><span lang=3D"EN-US" style=3D"f=
ont-size:12pt">daniel.voyer@bell.ca</span></a><span lang=3D"EN-US" style=3D=
"font-size:12pt;color:black">&gt;,
 &lt;</span><a href=3D"mailto:satoru.matsushima@g.softbank.co.jp" target=3D=
"_blank"><span lang=3D"EN-US" style=3D"font-size:12pt">satoru.matsushima@g.=
softbank.co.jp</span></a><span lang=3D"EN-US" style=3D"font-size:12pt;color=
:black">&gt;, &lt;</span><a href=3D"mailto:lizhenbin@huawei.com" target=3D"=
_blank"><span lang=3D"EN-US" style=3D"font-size:12pt">lizhenbin@huawei.com<=
/span></a><span lang=3D"EN-US" style=3D"font-size:12pt;color:black">&gt;<br=
>
<b>Resent date: </b>Tuesday, 7 January 2020 at 21:01</span><span lang=3D"EN=
-US"><u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">Dear Authors, WG Chairs, et al., <u></u><u></u></span>=
</p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">I hope I=E2=80=99m not too late with my comments and q=
uestions on the document. Please kindly consider them as WG LC comments:<u>=
</u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:108pt">
<span lang=3D"EN-US" style=3D"font-size:10pt;font-family:Symbol">=C2=B7</sp=
an><span lang=3D"EN-US" style=3D"font-size:7pt;font-family:&quot;Times New =
Roman&quot;,serif">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span><span lang=3D"EN-US">I have a question regarding the following pseud=
o-code:<u></u><u></u></span></p>
</div>
<blockquote style=3D"margin:5pt 0cm 5pt 30pt">
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">=C2=A0 S08. =C2=A0 Max_LE =3D (Hdr Ext Len / 2) =E2=80=
=93 1<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">=C2=A0 S09. =C2=A0 If ((Last Entry &gt; max_LE) or (Se=
gments Left &gt; (Last Entry+1)) {<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">=C2=A0 S10. =C2=A0 =C2=A0 =C2=A0Send an ICMP Parameter=
 Problem to the Source Address,<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0Code 0 (Erroneous header field encountered),<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0Pointer set to the Segments Left field.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0Interrupt packet processing and discard the packet.<u></u><u></u></span>=
</p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">=C2=A0 S11. =C2=A0 }<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">According to RFC 8200, Hdr Ext Len is the length of th=
e extension header in 8-octet units, not including the first 8 octets. Thus=
, as I understand, max_LE is the length in 8-octet units of half of the ext=
ension header less one. On the other
 hand, Last Entry and Segments Left are indices. Hence my question, What is=
 being compared in line S09 ( Last Entry &gt; max_LE)? Length and index? If=
 the goal is to use Hdr Ext Len to calculate the number of entries in the h=
eader, then what assumption is used
 in S08? Is it that the entry=E2=80=99s length is always and only 128 bits,=
 i.e. 16 octets? I believe that using such an assumption is too narrowing a=
nd limiting to SRH.<u></u><u></u></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">
<span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">
<span lang=3D"EN-US">PC: This has already been discussed with Adrian. Pleas=
e check this thread:
</span><a href=3D"https://mailarchive.ietf.org/arch/msg/spring/IOA_4nlNPacD=
2v7Jue2dkGeOABk" target=3D"_blank"><span lang=3D"EN-US" style=3D"color:wind=
owtext;text-decoration:none">https://mailarchive.ietf.org/arch/msg/spring/I=
OA_4nlNPacD2v7Jue2dkGeOABk</span></a><span lang=3D"EN-US"><u></u><u></u></s=
pan></p>
</div>
</blockquote>
</div>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">GIM&=
gt;&gt; Thank you for the reference. In some aspects, part of my statement =
is repeating your answer to Adrain. The only length on an element in SRH co=
nsidered is 128 bits, the length of IPv6 address.
 I think that your explanation of how you have arrived at th following form=
ula<u></u><u></u></span></p>
</div>
</div>
<blockquote style=3D"margin:5pt 0cm 5pt 30pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">=C2=
=A0 =C2=A0 S08. =C2=A0 Max_LE =3D (Hdr Ext Len / 2) =E2=80=93 1=C2=A0 =C2=
=A0=C2=A0<u></u><u></u></span></p>
</div>
</div>
</blockquote>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">=C2=
=A0will benefit the document.=C2=A0<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">My q=
uestion to you and SPRING WG goes beyond this scenario. Considering present=
ed in Singapore Unified Identifier proposals (</span><a href=3D"https://dat=
atracker.ietf.org/doc/draft-mirsky-6man-unified-id-sr/" target=3D"_blank"><=
span lang=3D"EN-US">draft-mirsky-6man-unified-id-sr</span></a><span lang=3D=
"EN-US">=C2=A0and=C2=A0</span><a href=3D"https://datatracker.ietf.org/doc/d=
raft-gmsm-bess-evpn-bfd/?include_text=3D1" target=3D"_blank"><span lang=3D"=
EN-US">draft-wmsaxw-6man-usid-id-use</span></a><span lang=3D"EN-US">),
 I believe other scenarios of using SRH, with elements of length other than=
 128 bits should be accommodated, e.g., 32 bits-long elements.<u></u><u></u=
></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">i.<u=
></u><u></u></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US"><u><=
/u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">PC: It is up to the draft-mirsk=
y authors to standardize in their draft the changes to the SRH processing. =
As per today the draft-mirsky proposal is still an individual document.<u><=
/u><u></u></span></p>
<div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0cm 0cm 0cm 6pt;margin:5pt 0c=
m 5pt 4.8pt">
<div>
<div>
<div>
<blockquote style=3D"margin:5pt 0cm 5pt 30pt">
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">
<span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
</div>
</blockquote>
<p class=3D"MsoNormal" style=3D"margin-left:108pt">
<span style=3D"font-size:10pt;font-family:Symbol">=C2=B7</span><span lang=
=3D"EN-US" style=3D"font-size:7pt;font-family:&quot;Times New Roman&quot;,s=
erif">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span><span lang=3D"EN-US">Another question is to Section 6.3. What value =
do you see in this section? I&#39;ve noticed that draft-ietf-6man-spring-sr=
v6-oam is in the Informational References section. I agree with that for th=
e first sentence in the section. But I
 believe that the second sentence that refers to the new O-bit and OAM beha=
viors defined in=C2=A0 draft-ietf-6man-spring-srv6-oam requires it to be mo=
ved into the Normative References section. Unless you&#39;ll decide to remo=
ve the section altogether.<u></u><u></u></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">
<span lang=3D"EN-US">PC: The O-bit and OAM behaviors described in draft-iet=
f-6man-spring-srv6-oam are not required to understand or implement the tech=
nology described in draft-ietf-spring-srv6-network-programming. However, th=
ey are relevant as to provide additional
 information to the reader. Why would it be a normative reference?<u></u><u=
></u></span></p>
</div>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span lang=3D"EN-US">GIM&=
gt;&gt; Ali and I are discussing several aspects of draft-ietf-6man-spring-=
srv6-oam. For example, the O-bit is applicable to any OAM operation or to s=
ome part of them. Note that OAM apparatus
 usually considered to include Fault Management and Performance Monitoring =
protocols. Both may operate as proactive or on-demand. Is the O-bit applica=
ble to all OAM methods? Then, Fault Management OAM supports Continuity Chec=
k, Connectivity Verification and,
 for some networks, Automatic Protection Coordination. How O-bit is used in=
 these methods? Now, to the Performance Monitoring OAM. I think that the O-=
bit can be only used in dual-ended one-way PM OAM. How O-bit may be used in=
 single-ended two-way PM OAM? Can
 the O-bit support the Loss Measurement? As you may see, there are many que=
stions to discuss and clarify in the document. I can imagine that the resul=
t of our work on draft-ietf-6man-spring-srv6-oam may be somewhat different =
from its current form. How to ensure
 synchronization between SRv6 programming and OAM specifications?<u></u><u>=
</u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">PC: The current reference in dr=
aft-ietf-spring-srv6-network-programming does not explain particular mechan=
isms of
</span><span lang=3D"EN-US">draft-ietf-6man-spring-srv6-oam. It only says t=
hat draft-ietf-6man-spring-srv6-oam defines OAM mechanisms for SRv6 as well=
 as the O-bit. This is flexible enough as to be correct regardless of the c=
hanges that you make during the WGLC
 to draft-ietf-6man-spring-srv6-oam.<u></u><u></u></span></p>
</div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0cm 0cm 0cm 6pt;margin:5pt 0c=
m 5pt 4.8pt">
<div>
<div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">Regards,<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">Greg<u></u><u></u></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">On Thu, Dec 5, 2019 at 9:15 AM &lt;</span><a href=3D"m=
ailto:bruno.decraene@orange.com" target=3D"_blank"><span lang=3D"EN-US">bru=
no.decraene@orange.com</span></a><span lang=3D"EN-US">&gt; wrote:<u></u><u>=
</u></span></p>
</div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0cm 0cm 0cm 6pt;margin:5pt 0c=
m 5pt 4.8pt">
<div>
<div>
<pre style=3D"margin-left:72pt"><span lang=3D"EN-US">Hello SPRING,<u></u><u=
></u></span></pre>
<pre style=3D"margin-left:72pt"><span lang=3D"EN-US">=C2=A0<u></u><u></u></=
span></pre>
<pre style=3D"margin-left:72pt"><span lang=3D"EN-US">This email starts a tw=
o weeks Working Group Last Call on draft-ietf-spring-srv6-network-programmi=
ng [1].<u></u><u></u></span></pre>
<pre style=3D"margin-left:72pt"><span lang=3D"EN-US">=C2=A0<u></u><u></u></=
span></pre>
<pre style=3D"margin-left:72pt"><span lang=3D"EN-US">Please read this docum=
ent if you haven&#39;t read the most recent version, and send your comments=
 to the SPRING WG list, no later than December 20.<u></u><u></u></span></pr=
e>
<pre style=3D"margin-left:72pt"><span lang=3D"EN-US">=C2=A0<u></u><u></u></=
span></pre>
<pre style=3D"margin-left:72pt"><span lang=3D"EN-US">You may copy the 6MAN =
WG for IPv6 related comment, but consider not duplicating emails on the 6MA=
N mailing list for the comments which are only spring specifics.<u></u><u><=
/u></span></pre>
<pre style=3D"margin-left:72pt"><span lang=3D"EN-US">=C2=A0<u></u><u></u></=
span></pre>
<pre style=3D"margin-left:72pt"><span lang=3D"EN-US">If you are raising a p=
oint which you expect will be specifically debated on the mailing list, con=
sider using a specific email/thread for this point.<u></u><u></u></span></p=
re>
<pre style=3D"margin-left:72pt"><span lang=3D"EN-US">This may help avoiding=
 that the thread become specific to this point and that other points get fo=
rgotten (or that the thread get converted into parallel independent discuss=
ions)<u></u><u></u></span></pre>
<pre style=3D"margin-left:72pt"><span lang=3D"EN-US">=C2=A0<u></u><u></u></=
span></pre>
<pre style=3D"margin-left:72pt"><span lang=3D"EN-US">Thank you,<u></u><u></=
u></span></pre>
<pre style=3D"margin-left:72pt"><span lang=3D"EN-US">Bruno<u></u><u></u></s=
pan></pre>
<pre style=3D"margin-left:72pt"><span lang=3D"EN-US">=C2=A0<u></u><u></u></=
span></pre>
<pre style=3D"margin-left:72pt"><span lang=3D"EN-US">[1] </span><a href=3D"=
https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-05" =
target=3D"_blank"><span lang=3D"EN-US">https://tools.ietf.org/html/draft-ie=
tf-spring-srv6-network-programming-05</span></a><span lang=3D"EN-US"><u></u=
><u></u></span></pre>
<pre style=3D"margin-left:72pt"><span lang=3D"EN-US">=C2=A0<u></u><u></u></=
span></pre>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
</div>
<pre style=3D"margin-left:72pt"><span lang=3D"FR">_________________________=
___________________________________________________________________________=
_____________________</span><span lang=3D"EN-US"><u></u><u></u></span></pre=
>
<pre style=3D"margin-left:72pt"><span lang=3D"FR">=C2=A0</span><span lang=
=3D"EN-US"><u></u><u></u></span></pre>
<pre style=3D"margin-left:72pt"><span lang=3D"FR">Ce message et ses pieces =
jointes peuvent contenir des informations confidentielles ou privilegiees e=
t ne doivent donc</span><span lang=3D"EN-US"><u></u><u></u></span></pre>
<pre style=3D"margin-left:72pt"><span lang=3D"FR">pas etre diffuses, exploi=
tes ou copies sans autorisation. Si vous avez recu ce message par erreur, v=
euillez le signaler</span></pre>
<pre style=3D"margin-left:72pt"><span lang=3D"FR">a l&#39;expediteur et le =
detruire ainsi que les pieces jointes. Les messages electroniques etant sus=
ceptibles d&#39;alteration,<u></u><u></u></span></pre>
<pre style=3D"margin-left:72pt"><span lang=3D"FR">Orange decline toute resp=
onsabilite si ce message a ete altere, deforme ou falsifie. Merci.<u></u><u=
></u></span></pre>
<pre style=3D"margin-left:72pt"><span lang=3D"FR">=C2=A0<u></u><u></u></spa=
n></pre>
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From nobody Sun Jan 19 23:55:42 2020
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To: Ole Troan <otroan@employees.org>, 6man WG <ipv6@ietf.org>, SPRING WG <spring@ietf.org>
Cc: 6man Chairs <6man-chairs@ietf.org>
References: <ECC21DA8-0156-41D2-921E-177389D3C904@employees.org>
From: Loa Andersson <loa@pi.nu>
Message-ID: <09adcd59-13ae-448b-6a48-5e7471dbd121@pi.nu>
Date: Mon, 20 Jan 2020 15:54:41 +0800
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/ptjXV3sOKYDON3XRWfF1S-AMsQM>
Subject: Re: [spring] 6man w.g. last call for <draft-ietf-6man-spring-srv6-oam>
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This is a multi-part message in MIME format.
--------------1148490B59AD80A1FA80BE02
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 7bit

WG,

I have reviewed the entire document.

First, I'm not an IPv6 expert.

As far as I can see the sued on

I have not used github, I had a couple of attempts to learn the tools,
but so far I have failed.

I have instead done what I use to do, use the review tool with Word.

Since I sometimes have a pushback on the docx-format I save the result
as a .txt-file. Drawback is that all comment show up as refrences to a
list at the end of the document. But you can't get everything.


/Loa

PS gives this output for this draft; it is quite a lot and in itself are
so much that it is worth sending it bck to the authors and asking them
to fix it. Was the noits tool checked at all before starting the wglc?

idnits 2.16.02

/tmp/draft-ietf-6man-spring-srv6-oam-03.txt:

   Checking boilerplate required by RFC 5378 and the IETF Trust (see
   https://trustee.ietf.org/license-info):
 
----------------------------------------------------------------------------

      No issues found here.

   Checking nits according to 
https://www.ietf.org/id-info/1id-guidelines.txt:
 
----------------------------------------------------------------------------

      No issues found here.

   Checking nits according to https://www.ietf.org/id-info/checklist :
 
----------------------------------------------------------------------------

   ** There are 3 instances of too long lines in the document, the 
longest one
      being 6 characters in excess of 72.

   == There are 5 instances of lines with non-RFC3849-compliant IPv6 
addresses
      in the document.  If these are example addresses, they should be 
changed.


   Miscellaneous warnings:
 
----------------------------------------------------------------------------

   == The copyright year in the IETF Trust and authors Copyright Line 
does not
      match the current year

   -- The exact meaning of the all-uppercase expression 'MAY NOT' is not
      defined in RFC 2119.  If it is intended as a requirements 
expression, it
      should be rewritten using one of the combinations defined in RFC 2119;
      otherwise it should not be all-uppercase.

   == The expression 'MAY NOT', while looking like RFC 2119 requirements 
text,
      is not defined in RFC 2119, and should not be used.  Consider 
using 'MUST
      NOT' instead (if that is what you mean).

      Found 'MAY NOT' in this paragraph:

      To perform ICMPv6 ping to a target SID an echo request message is
      generated by the initiator with the END.OP or END.OTP SID in the
      segment-list of the SRH immediately preceding the target SID. 
There MAY
      or MAY NOT be additional segments preceding the END.OP/ END.OTP SID.

   == The expression 'MAY NOT', while looking like RFC 2119 requirements 
text,
      is not defined in RFC 2119, and should not be used.  Consider 
using 'MUST
      NOT' instead (if that is what you mean).

      Found 'MAY NOT' in this paragraph:

      To traceroute a target SID a probe message is generated by the
      initiator with the END.OP or END.OTP SID in the segment-list of 
the SRH
      immediately preceding the target SID.  There MAY or MAY NOT be 
additional
      segments preceding the END.OP/ END.OTP SID.

   -- The document date (December 18, 2019) is 32 days in the past.  Is this
      intentional?


   Checking references for intended status: Proposed Standard
 
----------------------------------------------------------------------------

      (See RFCs 3967 and 4897 for information about using normative 
references
      to lower-maturity documents in RFCs)

   == Missing Reference: 'SL' is mentioned on line 190, but not defined

   -- Looks like a reference, but probably isn't: '2' on line 191

   -- Looks like a reference, but probably isn't: '1' on line 191

   -- Looks like a reference, but probably isn't: '0' on line 192

   == Missing Reference: 'RFC7011' is mentioned on line 230, but not defined

   == Missing Reference: 'I-D.ietf-idr-bgpls-srv6-ext' is mentioned on line
      241, but not defined

   == Missing Reference: 'RFC792' is mentioned on line 701, but not defined

   == Missing Reference: 'RFC 8403' is mentioned on line 660, but not 
defined

   == Unused Reference: 'RFC0792' is defined on line 823, but no explicit
      reference was found in the text

   == Unused Reference: 'RFC8403' is defined on line 843, but no explicit
      reference was found in the text

   == Outdated reference: A later version (-08) exists of
      draft-ietf-spring-srv6-network-programming-06


      Summary: 1 error (**), 0 flaws (~~), 12 warnings (==), 5 comments 
(--).

      Run idnits with the --verbose option for more detailed information 
about
      the items above.

On 05/12/2019 04:53, Ole Troan wrote:
> Hello,
> 
>    As agreed in the working group session in Singapore, this message starts a new two week 6MAN Working Group Last Call on advancing:
> 
>    Title    : Operations, Administration, and Maintenance (OAM) in Segment Routing Networks with IPv6 Data plane (SRv6)
>    Author   : Z. Ali, C. Filsfils, S. Matsushima, D. Voyer, M. Chen
>    Filename : draft-ietf-6man-spring-srv6-oam-02
>    Pages    : 23
>    Date     : 2019-11-20
>                           
>      https://datatracker.ietf.org/doc/draft-ietf-6man-spring-srv6-oam/
> 
> as a Proposed Standard.
> 
> Substantive comments and statements of support for publishing this document should be directed to the mailing list.
> Editorial suggestions can be sent to the author. This last call will end on the 18th of December 2019.
> 
> To improve document quality and ensure that bugs are caught as early as possible, we would require at least
> two reviewers to do a complete review of the document.  Please let the chairs know if you are willing to be a reviewer.
> 
> The last call will be forwarded to the spring working group, with discussion directed to the ipv6 list.
> 
> Thanks,
> Bob & Ole, 6man co-chairs
> 
> 
> --------------------------------------------------------------------
> IETF IPv6 working group mailing list
> ipv6@ietf.org
> Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
> --------------------------------------------------------------------
> 

-- 


Loa Andersson                        email: loa@pi.nu
Senior MPLS Expert
Bronze Dragon Consulting             phone: +46 739 81 21 64

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From: Bob Hinden <bob.hinden@gmail.com>
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Date: Mon, 20 Jan 2020 03:12:41 -0800
In-Reply-To: <09adcd59-13ae-448b-6a48-5e7471dbd121@pi.nu>
Cc: Bob Hinden <bob.hinden@gmail.com>, =?utf-8?Q?Ole_Tr=C3=B8an?= <otroan@employees.org>, IPv6 List <ipv6@ietf.org>, SPRING WG <spring@ietf.org>, 6man Chairs <6man-chairs@ietf.org>
To: Loa Andersson <loa@pi.nu>
References: <ECC21DA8-0156-41D2-921E-177389D3C904@employees.org> <09adcd59-13ae-448b-6a48-5e7471dbd121@pi.nu>
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Subject: Re: [spring] 6man w.g. last call for <draft-ietf-6man-spring-srv6-oam>
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Loa,

Thanks for doing the review.  I think it may be worthwhile to also send =
out the .docx file in addition to the text version.

Bob


> On Jan 19, 2020, at 11:54 PM, Loa Andersson <loa@pi.nu> wrote:
>=20
> WG,
>=20
> I have reviewed the entire document.
>=20
> First, I'm not an IPv6 expert.
>=20
> As far as I can see the sued on
>=20
> I have not used github, I had a couple of attempts to learn the tools,
> but so far I have failed.
>=20
> I have instead done what I use to do, use the review tool with Word.
>=20
> Since I sometimes have a pushback on the docx-format I save the result
> as a .txt-file. Drawback is that all comment show up as refrences to a
> list at the end of the document. But you can't get everything.
>=20
>=20
> /Loa
>=20
> PS gives this output for this draft; it is quite a lot and in itself =
are
> so much that it is worth sending it bck to the authors and asking them
> to fix it. Was the noits tool checked at all before starting the wglc?
>=20
> idnits 2.16.02
>=20
> /tmp/draft-ietf-6man-spring-srv6-oam-03.txt:
>=20
>  Checking boilerplate required by RFC 5378 and the IETF Trust (see
>  https://trustee.ietf.org/license-info):
> =
--------------------------------------------------------------------------=
--
>=20
>     No issues found here.
>=20
>  Checking nits according to =
https://www.ietf.org/id-info/1id-guidelines.txt:
> =
--------------------------------------------------------------------------=
--
>=20
>     No issues found here.
>=20
>  Checking nits according to https://www.ietf.org/id-info/checklist :
> =
--------------------------------------------------------------------------=
--
>=20
>  ** There are 3 instances of too long lines in the document, the =
longest one
>     being 6 characters in excess of 72.
>=20
>  =3D=3D There are 5 instances of lines with non-RFC3849-compliant IPv6 =
addresses
>     in the document.  If these are example addresses, they should be =
changed.
>=20
>=20
>  Miscellaneous warnings:
> =
--------------------------------------------------------------------------=
--
>=20
>  =3D=3D The copyright year in the IETF Trust and authors Copyright =
Line does not
>     match the current year
>=20
>  -- The exact meaning of the all-uppercase expression 'MAY NOT' is not
>     defined in RFC 2119.  If it is intended as a requirements =
expression, it
>     should be rewritten using one of the combinations defined in RFC =
2119;
>     otherwise it should not be all-uppercase.
>=20
>  =3D=3D The expression 'MAY NOT', while looking like RFC 2119 =
requirements text,
>     is not defined in RFC 2119, and should not be used.  Consider =
using 'MUST
>     NOT' instead (if that is what you mean).
>=20
>     Found 'MAY NOT' in this paragraph:
>=20
>     To perform ICMPv6 ping to a target SID an echo request message is
>     generated by the initiator with the END.OP or END.OTP SID in the
>     segment-list of the SRH immediately preceding the target SID. =
There MAY
>     or MAY NOT be additional segments preceding the END.OP/ END.OTP =
SID.
>=20
>  =3D=3D The expression 'MAY NOT', while looking like RFC 2119 =
requirements text,
>     is not defined in RFC 2119, and should not be used.  Consider =
using 'MUST
>     NOT' instead (if that is what you mean).
>=20
>     Found 'MAY NOT' in this paragraph:
>=20
>     To traceroute a target SID a probe message is generated by the
>     initiator with the END.OP or END.OTP SID in the segment-list of =
the SRH
>     immediately preceding the target SID.  There MAY or MAY NOT be =
additional
>     segments preceding the END.OP/ END.OTP SID.
>=20
>  -- The document date (December 18, 2019) is 32 days in the past.  Is =
this
>     intentional?
>=20
>=20
>  Checking references for intended status: Proposed Standard
> =
--------------------------------------------------------------------------=
--
>=20
>     (See RFCs 3967 and 4897 for information about using normative =
references
>     to lower-maturity documents in RFCs)
>=20
>  =3D=3D Missing Reference: 'SL' is mentioned on line 190, but not =
defined
>=20
>  -- Looks like a reference, but probably isn't: '2' on line 191
>=20
>  -- Looks like a reference, but probably isn't: '1' on line 191
>=20
>  -- Looks like a reference, but probably isn't: '0' on line 192
>=20
>  =3D=3D Missing Reference: 'RFC7011' is mentioned on line 230, but not =
defined
>=20
>  =3D=3D Missing Reference: 'I-D.ietf-idr-bgpls-srv6-ext' is mentioned =
on line
>     241, but not defined
>=20
>  =3D=3D Missing Reference: 'RFC792' is mentioned on line 701, but not =
defined
>=20
>  =3D=3D Missing Reference: 'RFC 8403' is mentioned on line 660, but =
not defined
>=20
>  =3D=3D Unused Reference: 'RFC0792' is defined on line 823, but no =
explicit
>     reference was found in the text
>=20
>  =3D=3D Unused Reference: 'RFC8403' is defined on line 843, but no =
explicit
>     reference was found in the text
>=20
>  =3D=3D Outdated reference: A later version (-08) exists of
>     draft-ietf-spring-srv6-network-programming-06
>=20
>=20
>     Summary: 1 error (**), 0 flaws (~~), 12 warnings (=3D=3D), 5 =
comments (--).
>=20
>     Run idnits with the --verbose option for more detailed information =
about
>     the items above.
>=20
> On 05/12/2019 04:53, Ole Troan wrote:
>> Hello,
>>   As agreed in the working group session in Singapore, this message =
starts a new two week 6MAN Working Group Last Call on advancing:
>>   Title    : Operations, Administration, and Maintenance (OAM) in =
Segment Routing Networks with IPv6 Data plane (SRv6)
>>   Author   : Z. Ali, C. Filsfils, S. Matsushima, D. Voyer, M. Chen
>>   Filename : draft-ietf-6man-spring-srv6-oam-02
>>   Pages    : 23
>>   Date     : 2019-11-20
>>                               =
https://datatracker.ietf.org/doc/draft-ietf-6man-spring-srv6-oam/
>> as a Proposed Standard.
>> Substantive comments and statements of support for publishing this =
document should be directed to the mailing list.
>> Editorial suggestions can be sent to the author. This last call will =
end on the 18th of December 2019.
>> To improve document quality and ensure that bugs are caught as early =
as possible, we would require at least
>> two reviewers to do a complete review of the document.  Please let =
the chairs know if you are willing to be a reviewer.
>> The last call will be forwarded to the spring working group, with =
discussion directed to the ipv6 list.
>> Thanks,
>> Bob & Ole, 6man co-chairs
>> --------------------------------------------------------------------
>> IETF IPv6 working group mailing list
>> ipv6@ietf.org
>> Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
>> --------------------------------------------------------------------
>=20
> --
>=20
>=20
> Loa Andersson                        email: loa@pi.nu
> Senior MPLS Expert
> Bronze Dragon Consulting             phone: +46 739 81 21 64
> <draft-ietf-6man-spring-srv6-oam-03.txt>


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From: "Francois Clad (fclad)" <fclad@cisco.com>
To: Linda Dunbar <linda.dunbar@futurewei.com>
CC: SPRING WG <spring@ietf.org>, "draft-ietf-spring-sr-service-programming@ietf.org" <draft-ietf-spring-sr-service-programming@ietf.org>
Thread-Topic: Can features described by draft-ietf-spring-sr-service-programming-01 be supported by draft-ietf-spring-srv6-network-programming-08?
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Date: Mon, 20 Jan 2020 16:27:30 +0000
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Subject: Re: [spring] Can features described by draft-ietf-spring-sr-service-programming-01 be supported by draft-ietf-spring-srv6-network-programming-08?
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From: "Zafar Ali (zali)" <zali@cisco.com>
To: Bob Hinden <bob.hinden@gmail.com>, Loa Andersson <loa@pi.nu>
CC: IPv6 List <ipv6@ietf.org>, =?utf-8?B?T2xlIFRyw7hhbg==?= <otroan@employees.org>, SPRING WG <spring@ietf.org>, 6man Chairs <6man-chairs@ietf.org>, "Zafar Ali (zali)" <zali@cisco.com>
Thread-Topic: [spring] 6man w.g. last call for <draft-ietf-6man-spring-srv6-oam>
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Date: Mon, 20 Jan 2020 19:31:11 +0000
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References: <ECC21DA8-0156-41D2-921E-177389D3C904@employees.org> <09adcd59-13ae-448b-6a48-5e7471dbd121@pi.nu> <C99D9E82-15F6-4F57-8850-708B5CE274D3@gmail.com>
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To: Loa Andersson <loa@pi.nu>, Ole Troan <otroan@employees.org>, 6man WG <ipv6@ietf.org>, SPRING WG <spring@ietf.org>
Cc: 6man Chairs <6man-chairs@ietf.org>
References: <ECC21DA8-0156-41D2-921E-177389D3C904@employees.org> <09adcd59-13ae-448b-6a48-5e7471dbd121@pi.nu>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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Subject: Re: [spring] 6man w.g. last call for <draft-ietf-6man-spring-srv6-oam>
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To be clear about one of the points in the review, MAY NOT is not allowed by RFC2119 because it is totally ambiguous in English (since it can mean either "must not" or "might not"). In any case the phrase "MAY or MAY NOT" is not of any normative value. It presumably simply means "MAY" in all cases in this draft.

Regards
   Brian

On 20-Jan-20 20:54, Loa Andersson wrote:
> WG,
> 
> I have reviewed the entire document.
> 
> First, I'm not an IPv6 expert.
> 
> As far as I can see the sued on
> 
> I have not used github, I had a couple of attempts to learn the tools,
> but so far I have failed.
> 
> I have instead done what I use to do, use the review tool with Word.
> 
> Since I sometimes have a pushback on the docx-format I save the result
> as a .txt-file. Drawback is that all comment show up as refrences to a
> list at the end of the document. But you can't get everything.
> 
> 
> /Loa
> 
> PS gives this output for this draft; it is quite a lot and in itself are
> so much that it is worth sending it bck to the authors and asking them
> to fix it. Was the noits tool checked at all before starting the wglc?
> 
> idnits 2.16.02
> 
> /tmp/draft-ietf-6man-spring-srv6-oam-03.txt:
> 
>    Checking boilerplate required by RFC 5378 and the IETF Trust (see
>    https://trustee.ietf.org/license-info):
>  
> ----------------------------------------------------------------------------
> 
>       No issues found here.
> 
>    Checking nits according to 
> https://www.ietf.org/id-info/1id-guidelines.txt:
>  
> ----------------------------------------------------------------------------
> 
>       No issues found here.
> 
>    Checking nits according to https://www.ietf.org/id-info/checklist :
>  
> ----------------------------------------------------------------------------
> 
>    ** There are 3 instances of too long lines in the document, the 
> longest one
>       being 6 characters in excess of 72.
> 
>    == There are 5 instances of lines with non-RFC3849-compliant IPv6 
> addresses
>       in the document.  If these are example addresses, they should be 
> changed.
> 
> 
>    Miscellaneous warnings:
>  
> ----------------------------------------------------------------------------
> 
>    == The copyright year in the IETF Trust and authors Copyright Line 
> does not
>       match the current year
> 
>    -- The exact meaning of the all-uppercase expression 'MAY NOT' is not
>       defined in RFC 2119.  If it is intended as a requirements 
> expression, it
>       should be rewritten using one of the combinations defined in RFC 2119;
>       otherwise it should not be all-uppercase.
> 
>    == The expression 'MAY NOT', while looking like RFC 2119 requirements 
> text,
>       is not defined in RFC 2119, and should not be used.  Consider 
> using 'MUST
>       NOT' instead (if that is what you mean).
> 
>       Found 'MAY NOT' in this paragraph:
> 
>       To perform ICMPv6 ping to a target SID an echo request message is
>       generated by the initiator with the END.OP or END.OTP SID in the
>       segment-list of the SRH immediately preceding the target SID. 
> There MAY
>       or MAY NOT be additional segments preceding the END.OP/ END.OTP SID.
> 
>    == The expression 'MAY NOT', while looking like RFC 2119 requirements 
> text,
>       is not defined in RFC 2119, and should not be used.  Consider 
> using 'MUST
>       NOT' instead (if that is what you mean).
> 
>       Found 'MAY NOT' in this paragraph:
> 
>       To traceroute a target SID a probe message is generated by the
>       initiator with the END.OP or END.OTP SID in the segment-list of 
> the SRH
>       immediately preceding the target SID.  There MAY or MAY NOT be 
> additional
>       segments preceding the END.OP/ END.OTP SID.
> 
>    -- The document date (December 18, 2019) is 32 days in the past.  Is this
>       intentional?
> 
> 
>    Checking references for intended status: Proposed Standard
>  
> ----------------------------------------------------------------------------
> 
>       (See RFCs 3967 and 4897 for information about using normative 
> references
>       to lower-maturity documents in RFCs)
> 
>    == Missing Reference: 'SL' is mentioned on line 190, but not defined
> 
>    -- Looks like a reference, but probably isn't: '2' on line 191
> 
>    -- Looks like a reference, but probably isn't: '1' on line 191
> 
>    -- Looks like a reference, but probably isn't: '0' on line 192
> 
>    == Missing Reference: 'RFC7011' is mentioned on line 230, but not defined
> 
>    == Missing Reference: 'I-D.ietf-idr-bgpls-srv6-ext' is mentioned on line
>       241, but not defined
> 
>    == Missing Reference: 'RFC792' is mentioned on line 701, but not defined
> 
>    == Missing Reference: 'RFC 8403' is mentioned on line 660, but not 
> defined
> 
>    == Unused Reference: 'RFC0792' is defined on line 823, but no explicit
>       reference was found in the text
> 
>    == Unused Reference: 'RFC8403' is defined on line 843, but no explicit
>       reference was found in the text
> 
>    == Outdated reference: A later version (-08) exists of
>       draft-ietf-spring-srv6-network-programming-06
> 
> 
>       Summary: 1 error (**), 0 flaws (~~), 12 warnings (==), 5 comments 
> (--).
> 
>       Run idnits with the --verbose option for more detailed information 
> about
>       the items above.
> 
> On 05/12/2019 04:53, Ole Troan wrote:
>> Hello,
>>
>>    As agreed in the working group session in Singapore, this message starts a new two week 6MAN Working Group Last Call on advancing:
>>
>>    Title    : Operations, Administration, and Maintenance (OAM) in Segment Routing Networks with IPv6 Data plane (SRv6)
>>    Author   : Z. Ali, C. Filsfils, S. Matsushima, D. Voyer, M. Chen
>>    Filename : draft-ietf-6man-spring-srv6-oam-02
>>    Pages    : 23
>>    Date     : 2019-11-20
>>                           
>>      https://datatracker.ietf.org/doc/draft-ietf-6man-spring-srv6-oam/
>>
>> as a Proposed Standard.
>>
>> Substantive comments and statements of support for publishing this document should be directed to the mailing list.
>> Editorial suggestions can be sent to the author. This last call will end on the 18th of December 2019.
>>
>> To improve document quality and ensure that bugs are caught as early as possible, we would require at least
>> two reviewers to do a complete review of the document.  Please let the chairs know if you are willing to be a reviewer.
>>
>> The last call will be forwarded to the spring working group, with discussion directed to the ipv6 list.
>>
>> Thanks,
>> Bob & Ole, 6man co-chairs
>>
>>
>> --------------------------------------------------------------------
>> IETF IPv6 working group mailing list
>> ipv6@ietf.org
>> Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
>> --------------------------------------------------------------------
>>
> 
> 
> --------------------------------------------------------------------
> IETF IPv6 working group mailing list
> ipv6@ietf.org
> Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
> --------------------------------------------------------------------
> 


From nobody Mon Jan 20 18:21:12 2020
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Cc: =?UTF-8?Q?Ole_Tr=c3=b8an?= <otroan@employees.org>, IPv6 List <ipv6@ietf.org>, SPRING WG <spring@ietf.org>, 6man Chairs <6man-chairs@ietf.org>
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Subject: Re: [spring] 6man w.g. last call for <draft-ietf-6man-spring-srv6-oam>
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Bob,


Here is the docx-file, it is not exactly the same version as I used to
create the txt-file, since I continued to look at the figure for the
reference topology, and in that process I also corrected a spelling
erros and cleared up the text for some comments.

The only real change is that I have added an alternative to the figure
(note: no problems with the topology itself) for the reference topology
at the end of the docx file.

/Loa

On 20/01/2020 19:12, Bob Hinden wrote:
> Loa,
> 
> Thanks for doing the review.  I think it may be worthwhile to also send out the .docx file in addition to the text version.
> 
> Bob
> 
> 
>> On Jan 19, 2020, at 11:54 PM, Loa Andersson <loa@pi.nu> wrote:
>>
>> WG,
>>
>> I have reviewed the entire document.
>>
>> First, I'm not an IPv6 expert.
>>
>> As far as I can see the sued on
>>
>> I have not used github, I had a couple of attempts to learn the tools,
>> but so far I have failed.
>>
>> I have instead done what I use to do, use the review tool with Word.
>>
>> Since I sometimes have a pushback on the docx-format I save the result
>> as a .txt-file. Drawback is that all comment show up as refrences to a
>> list at the end of the document. But you can't get everything.
>>
>>
>> /Loa
>>
>> PS gives this output for this draft; it is quite a lot and in itself are
>> so much that it is worth sending it bck to the authors and asking them
>> to fix it. Was the noits tool checked at all before starting the wglc?
>>
>> idnits 2.16.02
>>
>> /tmp/draft-ietf-6man-spring-srv6-oam-03.txt:
>>
>>   Checking boilerplate required by RFC 5378 and the IETF Trust (see
>>   https://trustee.ietf.org/license-info):
>> ----------------------------------------------------------------------------
>>
>>      No issues found here.
>>
>>   Checking nits according to https://www.ietf.org/id-info/1id-guidelines.txt:
>> ----------------------------------------------------------------------------
>>
>>      No issues found here.
>>
>>   Checking nits according to https://www.ietf.org/id-info/checklist :
>> ----------------------------------------------------------------------------
>>
>>   ** There are 3 instances of too long lines in the document, the longest one
>>      being 6 characters in excess of 72.
>>
>>   == There are 5 instances of lines with non-RFC3849-compliant IPv6 addresses
>>      in the document.  If these are example addresses, they should be changed.
>>
>>
>>   Miscellaneous warnings:
>> ----------------------------------------------------------------------------
>>
>>   == The copyright year in the IETF Trust and authors Copyright Line does not
>>      match the current year
>>
>>   -- The exact meaning of the all-uppercase expression 'MAY NOT' is not
>>      defined in RFC 2119.  If it is intended as a requirements expression, it
>>      should be rewritten using one of the combinations defined in RFC 2119;
>>      otherwise it should not be all-uppercase.
>>
>>   == The expression 'MAY NOT', while looking like RFC 2119 requirements text,
>>      is not defined in RFC 2119, and should not be used.  Consider using 'MUST
>>      NOT' instead (if that is what you mean).
>>
>>      Found 'MAY NOT' in this paragraph:
>>
>>      To perform ICMPv6 ping to a target SID an echo request message is
>>      generated by the initiator with the END.OP or END.OTP SID in the
>>      segment-list of the SRH immediately preceding the target SID. There MAY
>>      or MAY NOT be additional segments preceding the END.OP/ END.OTP SID.
>>
>>   == The expression 'MAY NOT', while looking like RFC 2119 requirements text,
>>      is not defined in RFC 2119, and should not be used.  Consider using 'MUST
>>      NOT' instead (if that is what you mean).
>>
>>      Found 'MAY NOT' in this paragraph:
>>
>>      To traceroute a target SID a probe message is generated by the
>>      initiator with the END.OP or END.OTP SID in the segment-list of the SRH
>>      immediately preceding the target SID.  There MAY or MAY NOT be additional
>>      segments preceding the END.OP/ END.OTP SID.
>>
>>   -- The document date (December 18, 2019) is 32 days in the past.  Is this
>>      intentional?
>>
>>
>>   Checking references for intended status: Proposed Standard
>> ----------------------------------------------------------------------------
>>
>>      (See RFCs 3967 and 4897 for information about using normative references
>>      to lower-maturity documents in RFCs)
>>
>>   == Missing Reference: 'SL' is mentioned on line 190, but not defined
>>
>>   -- Looks like a reference, but probably isn't: '2' on line 191
>>
>>   -- Looks like a reference, but probably isn't: '1' on line 191
>>
>>   -- Looks like a reference, but probably isn't: '0' on line 192
>>
>>   == Missing Reference: 'RFC7011' is mentioned on line 230, but not defined
>>
>>   == Missing Reference: 'I-D.ietf-idr-bgpls-srv6-ext' is mentioned on line
>>      241, but not defined
>>
>>   == Missing Reference: 'RFC792' is mentioned on line 701, but not defined
>>
>>   == Missing Reference: 'RFC 8403' is mentioned on line 660, but not defined
>>
>>   == Unused Reference: 'RFC0792' is defined on line 823, but no explicit
>>      reference was found in the text
>>
>>   == Unused Reference: 'RFC8403' is defined on line 843, but no explicit
>>      reference was found in the text
>>
>>   == Outdated reference: A later version (-08) exists of
>>      draft-ietf-spring-srv6-network-programming-06
>>
>>
>>      Summary: 1 error (**), 0 flaws (~~), 12 warnings (==), 5 comments (--).
>>
>>      Run idnits with the --verbose option for more detailed information about
>>      the items above.
>>
>> On 05/12/2019 04:53, Ole Troan wrote:
>>> Hello,
>>>    As agreed in the working group session in Singapore, this message starts a new two week 6MAN Working Group Last Call on advancing:
>>>    Title    : Operations, Administration, and Maintenance (OAM) in Segment Routing Networks with IPv6 Data plane (SRv6)
>>>    Author   : Z. Ali, C. Filsfils, S. Matsushima, D. Voyer, M. Chen
>>>    Filename : draft-ietf-6man-spring-srv6-oam-02
>>>    Pages    : 23
>>>    Date     : 2019-11-20
>>>                                https://datatracker.ietf.org/doc/draft-ietf-6man-spring-srv6-oam/
>>> as a Proposed Standard.
>>> Substantive comments and statements of support for publishing this document should be directed to the mailing list.
>>> Editorial suggestions can be sent to the author. This last call will end on the 18th of December 2019.
>>> To improve document quality and ensure that bugs are caught as early as possible, we would require at least
>>> two reviewers to do a complete review of the document.  Please let the chairs know if you are willing to be a reviewer.
>>> The last call will be forwarded to the spring working group, with discussion directed to the ipv6 list.
>>> Thanks,
>>> Bob & Ole, 6man co-chairs
>>> --------------------------------------------------------------------
>>> IETF IPv6 working group mailing list
>>> ipv6@ietf.org
>>> Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
>>> --------------------------------------------------------------------
>>
>> --
>>
>>
>> Loa Andersson                        email: loa@pi.nu
>> Senior MPLS Expert
>> Bronze Dragon Consulting             phone: +46 739 81 21 64
>> <draft-ietf-6man-spring-srv6-oam-03.txt>
> 

-- 


Loa Andersson                        email: loa@pi.nu
Senior MPLS Expert
Bronze Dragon Consulting             phone: +46 739 81 21 64

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From: Bob Hinden <bob.hinden@gmail.com>
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Cc: Bob Hinden <bob.hinden@gmail.com>, =?utf-8?Q?Ole_Tr=C3=B8an?= <otroan@employees.org>, IPv6 List <ipv6@ietf.org>, SPRING WG <spring@ietf.org>, 6man Chairs <6man-chairs@ietf.org>
To: Loa Andersson <loa@pi.nu>
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Subject: Re: [spring] 6man w.g. last call for <draft-ietf-6man-spring-srv6-oam>
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Loa,

Thanks, that is very helpful.

Bob


> On Jan 20, 2020, at 6:20 PM, Loa Andersson <loa@pi.nu> wrote:
>=20
> Bob,
>=20
>=20
> Here is the docx-file, it is not exactly the same version as I used to
> create the txt-file, since I continued to look at the figure for the
> reference topology, and in that process I also corrected a spelling
> erros and cleared up the text for some comments.
>=20
> The only real change is that I have added an alternative to the figure
> (note: no problems with the topology itself) for the reference =
topology
> at the end of the docx file.
>=20
> /Loa
>=20
> On 20/01/2020 19:12, Bob Hinden wrote:
>> Loa,
>> Thanks for doing the review.  I think it may be worthwhile to also =
send out the .docx file in addition to the text version.
>> Bob
>>> On Jan 19, 2020, at 11:54 PM, Loa Andersson <loa@pi.nu> wrote:
>>>=20
>>> WG,
>>>=20
>>> I have reviewed the entire document.
>>>=20
>>> First, I'm not an IPv6 expert.
>>>=20
>>> As far as I can see the sued on
>>>=20
>>> I have not used github, I had a couple of attempts to learn the =
tools,
>>> but so far I have failed.
>>>=20
>>> I have instead done what I use to do, use the review tool with Word.
>>>=20
>>> Since I sometimes have a pushback on the docx-format I save the =
result
>>> as a .txt-file. Drawback is that all comment show up as refrences to =
a
>>> list at the end of the document. But you can't get everything.
>>>=20
>>>=20
>>> /Loa
>>>=20
>>> PS gives this output for this draft; it is quite a lot and in itself =
are
>>> so much that it is worth sending it bck to the authors and asking =
them
>>> to fix it. Was the noits tool checked at all before starting the =
wglc?
>>>=20
>>> idnits 2.16.02
>>>=20
>>> /tmp/draft-ietf-6man-spring-srv6-oam-03.txt:
>>>=20
>>>  Checking boilerplate required by RFC 5378 and the IETF Trust (see
>>>  https://trustee.ietf.org/license-info):
>>> =
--------------------------------------------------------------------------=
--
>>>=20
>>>     No issues found here.
>>>=20
>>>  Checking nits according to =
https://www.ietf.org/id-info/1id-guidelines.txt:
>>> =
--------------------------------------------------------------------------=
--
>>>=20
>>>     No issues found here.
>>>=20
>>>  Checking nits according to https://www.ietf.org/id-info/checklist :
>>> =
--------------------------------------------------------------------------=
--
>>>=20
>>>  ** There are 3 instances of too long lines in the document, the =
longest one
>>>     being 6 characters in excess of 72.
>>>=20
>>>  =3D=3D There are 5 instances of lines with non-RFC3849-compliant =
IPv6 addresses
>>>     in the document.  If these are example addresses, they should be =
changed.
>>>=20
>>>=20
>>>  Miscellaneous warnings:
>>> =
--------------------------------------------------------------------------=
--
>>>=20
>>>  =3D=3D The copyright year in the IETF Trust and authors Copyright =
Line does not
>>>     match the current year
>>>=20
>>>  -- The exact meaning of the all-uppercase expression 'MAY NOT' is =
not
>>>     defined in RFC 2119.  If it is intended as a requirements =
expression, it
>>>     should be rewritten using one of the combinations defined in RFC =
2119;
>>>     otherwise it should not be all-uppercase.
>>>=20
>>>  =3D=3D The expression 'MAY NOT', while looking like RFC 2119 =
requirements text,
>>>     is not defined in RFC 2119, and should not be used.  Consider =
using 'MUST
>>>     NOT' instead (if that is what you mean).
>>>=20
>>>     Found 'MAY NOT' in this paragraph:
>>>=20
>>>     To perform ICMPv6 ping to a target SID an echo request message =
is
>>>     generated by the initiator with the END.OP or END.OTP SID in the
>>>     segment-list of the SRH immediately preceding the target SID. =
There MAY
>>>     or MAY NOT be additional segments preceding the END.OP/ END.OTP =
SID.
>>>=20
>>>  =3D=3D The expression 'MAY NOT', while looking like RFC 2119 =
requirements text,
>>>     is not defined in RFC 2119, and should not be used.  Consider =
using 'MUST
>>>     NOT' instead (if that is what you mean).
>>>=20
>>>     Found 'MAY NOT' in this paragraph:
>>>=20
>>>     To traceroute a target SID a probe message is generated by the
>>>     initiator with the END.OP or END.OTP SID in the segment-list of =
the SRH
>>>     immediately preceding the target SID.  There MAY or MAY NOT be =
additional
>>>     segments preceding the END.OP/ END.OTP SID.
>>>=20
>>>  -- The document date (December 18, 2019) is 32 days in the past.  =
Is this
>>>     intentional?
>>>=20
>>>=20
>>>  Checking references for intended status: Proposed Standard
>>> =
--------------------------------------------------------------------------=
--
>>>=20
>>>     (See RFCs 3967 and 4897 for information about using normative =
references
>>>     to lower-maturity documents in RFCs)
>>>=20
>>>  =3D=3D Missing Reference: 'SL' is mentioned on line 190, but not =
defined
>>>=20
>>>  -- Looks like a reference, but probably isn't: '2' on line 191
>>>=20
>>>  -- Looks like a reference, but probably isn't: '1' on line 191
>>>=20
>>>  -- Looks like a reference, but probably isn't: '0' on line 192
>>>=20
>>>  =3D=3D Missing Reference: 'RFC7011' is mentioned on line 230, but =
not defined
>>>=20
>>>  =3D=3D Missing Reference: 'I-D.ietf-idr-bgpls-srv6-ext' is =
mentioned on line
>>>     241, but not defined
>>>=20
>>>  =3D=3D Missing Reference: 'RFC792' is mentioned on line 701, but =
not defined
>>>=20
>>>  =3D=3D Missing Reference: 'RFC 8403' is mentioned on line 660, but =
not defined
>>>=20
>>>  =3D=3D Unused Reference: 'RFC0792' is defined on line 823, but no =
explicit
>>>     reference was found in the text
>>>=20
>>>  =3D=3D Unused Reference: 'RFC8403' is defined on line 843, but no =
explicit
>>>     reference was found in the text
>>>=20
>>>  =3D=3D Outdated reference: A later version (-08) exists of
>>>     draft-ietf-spring-srv6-network-programming-06
>>>=20
>>>=20
>>>     Summary: 1 error (**), 0 flaws (~~), 12 warnings (=3D=3D), 5 =
comments (--).
>>>=20
>>>     Run idnits with the --verbose option for more detailed =
information about
>>>     the items above.
>>>=20
>>> On 05/12/2019 04:53, Ole Troan wrote:
>>>> Hello,
>>>>   As agreed in the working group session in Singapore, this message =
starts a new two week 6MAN Working Group Last Call on advancing:
>>>>   Title    : Operations, Administration, and Maintenance (OAM) in =
Segment Routing Networks with IPv6 Data plane (SRv6)
>>>>   Author   : Z. Ali, C. Filsfils, S. Matsushima, D. Voyer, M. Chen
>>>>   Filename : draft-ietf-6man-spring-srv6-oam-02
>>>>   Pages    : 23
>>>>   Date     : 2019-11-20
>>>>                               =
https://datatracker.ietf.org/doc/draft-ietf-6man-spring-srv6-oam/
>>>> as a Proposed Standard.
>>>> Substantive comments and statements of support for publishing this =
document should be directed to the mailing list.
>>>> Editorial suggestions can be sent to the author. This last call =
will end on the 18th of December 2019.
>>>> To improve document quality and ensure that bugs are caught as =
early as possible, we would require at least
>>>> two reviewers to do a complete review of the document.  Please let =
the chairs know if you are willing to be a reviewer.
>>>> The last call will be forwarded to the spring working group, with =
discussion directed to the ipv6 list.
>>>> Thanks,
>>>> Bob & Ole, 6man co-chairs
>>>> =
--------------------------------------------------------------------
>>>> IETF IPv6 working group mailing list
>>>> ipv6@ietf.org
>>>> Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
>>>> =
--------------------------------------------------------------------
>>>=20
>>> --
>>>=20
>>>=20
>>> Loa Andersson                        email: loa@pi.nu
>>> Senior MPLS Expert
>>> Bronze Dragon Consulting             phone: +46 739 81 21 64
>>> <draft-ietf-6man-spring-srv6-oam-03.txt>
>=20
> --
>=20
>=20
> Loa Andersson                        email: loa@pi.nu
> Senior MPLS Expert
> Bronze Dragon Consulting             phone: +46 739 81 21 64
> <draft-ietf-6man-spring-srv6-oam-03-A.docx>


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From: Ron Bonica <rbonica@juniper.net>
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>, "bruno.decraene@orange.com" <bruno.decraene@orange.com>
CC: "spring@ietf.org" <spring@ietf.org>
Thread-Topic: Introduction of draft-ietf-spring-srv6-network-programming (was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6)
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/SBr4t07RR9Q7Uz-OSE6NMglOXCw>
Subject: Re: [spring] Introduction of draft-ietf-spring-srv6-network-programming (was Re: draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6)
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--_000_BN7PR05MB3938570E66E468E8528DD885AE0D0BN7PR05MB3938namp_
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Pablo,

It is difficult to see how you can add information by removing a few words.

Let's begin with the text in https://mailarchive.ietf.org/arch/msg/spring/3=
WGuQumIfcmH281nwq3s9Un6raI. If you can see other advantages of SRv6 over SR=
-MPLS, we can add that information to the text in my original message.

                                                                           =
         Ron




Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com>
Sent: Thursday, January 16, 2020 1:09 PM
To: Ron Bonica <rbonica@juniper.net>; bruno.decraene@orange.com
Cc: spring@ietf.org
Subject: Re: Introduction of draft-ietf-spring-srv6-network-programming (wa=
s Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advanta=
ges of SRv6)

Ron,

I believe we can easily close this with the following diff:

<Old>
Network programming combines segment routing
   functions, both simple and complex, to achieve a networking objective
   that goes beyond mere packet routing.
</Old>

<New>
Network programming combines segment routing functions to achieve a network=
ing objective
   using segments that can represent any instruction, topological or servic=
e based.
</New>

Thanks,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Thursday, 16 January 2020 at 16:58
To: "bruno.decraene@orange.com<mailto:bruno.decraene@orange.com>" <bruno.de=
craene@orange.com<mailto:bruno.decraene@orange.com>>, "Pablo Camarillo (pca=
maril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.com>>
Cc: "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sprin=
g@ietf.org>>
Subject: RE: Introduction of draft-ietf-spring-srv6-network-programming (wa=
s Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advanta=
ges of SRv6)

Bruno,

Would you like Pablo and me to develop text offline and bring it back to th=
e mailing list? Or would you prefer us to craft the text in a few emails on=
 the mailing list?

                                                                           =
         Ron




Juniper Business Use Only
From: bruno.decraene@orange.com<mailto:bruno.decraene@orange.com> <bruno.de=
craene@orange.com<mailto:bruno.decraene@orange.com>>
Sent: Thursday, January 16, 2020 9:00 AM
To: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.co=
m>>; Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: RE: Introduction of draft-ietf-spring-srv6-network-programming (wa=
s Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advanta=
ges of SRv6)

Pablo,

Thanks for the reply.
I'm not seen explicitly what you are proposing to address Ron's comment, re=
garding the clarification of this sentence in the draft.
May I again suggest that both of you follow up to progress on a resolution =
to clarify the meaning of this sentence in the draft?

Thanks,
Bruno


From: Pablo Camarillo (pcamaril) [mailto:pcamaril@cisco.com]
Sent: Tuesday, January 14, 2020 6:43 PM
To: rbonica@juniper.net<mailto:rbonica@juniper.net>; DECRAENE Bruno TGI/OLN
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Introduction of draft-ietf-spring-srv6-network-programming (was Re=
: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages =
of SRv6)

(Updated the subject to reflect the new topic of this thread: the introduct=
ion of this draft)

Bruno,

You are correct. In essence we are saying the same thing as the 3rd line of=
 RFC8402.
A segment can represent any instruction, topological or
   service based.

For example, for service programming we have a draft-ietf-spring-sr-service=
-programming. This goes beyond mere packet routing. NET-PGM provides the ba=
se and draft-ietf-spring-sr-service-programming builds on top of that.

Thanks,
Pablo

From: "bruno.decraene@orange.com<mailto:bruno.decraene@orange.com>" <bruno.=
decraene@orange.com<mailto:bruno.decraene@orange.com>>
Date: Tuesday, 14 January 2020 at 11:02
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>, "Pablo Ca=
marillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.com>>
Cc: "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sprin=
g@ietf.org>>
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Hello Ron, Pablo,

From: Ron Bonica [mailto:rbonica@juniper.net]
Sent: Monday, January 13, 2020 9:38 PM
To: DECRAENE Bruno TGI/OLN
Cc: spring@ietf.org<mailto:spring@ietf.org>; Pablo Camarillo (pcamaril)
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Hello Bruno.

According to the network programming draft, "Network programming combines s=
egment routing functions, both simple and complex, to achieve a networking =
objective that goes beyond mere packet routing."

Sadly, the document offers little insight as to what those non-routing obje=
ctives might be.
Ron,
Thank you for elaborating on this comment. The scope of the revised comment=
 seem to me more focused and now indeed related to this document.

Ron, Pablo,
May I suggest that you both follow up to progress on a resolution on the co=
mment on this sentence?

e.g. clarify what is meant by "beyond packet routing", and/or what is exact=
ly meant by this sentence beyond what is already stated in the SR architect=
ure (which for example, but not restricted to, states that  "A segment can =
represent any instruction, topological or service based." )
If this can't be reasonably clarified, worse case could possibly be to remo=
ve this sentence or fall back to a reference to the/a SR architecture RFC/s=
ection/sentence. As of today, I don't assume that this point would be a blo=
cking point to progress that document or to delay it for a long time.


Thank you,
--Bruno



If SRv6 offers something beyond the mere packet routing capabilities of SR-=
MPLS, the network programming draft would be the most appropriate place to =
mention it. Otherwise, SRv6 is just an IPv6 version of SR-MPLS.

                                                                   Ron




Juniper Business Use Only
From: bruno.decraene@orange.com<mailto:bruno.decraene@orange.com> <bruno.de=
craene@orange.com<mailto:bruno.decraene@orange.com>>
Sent: Monday, January 13, 2020 8:12 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: spring@ietf.org<mailto:spring@ietf.org>; Pablo Camarillo (pcamaril) <pc=
amaril@cisco.com<mailto:pcamaril@cisco.com>>
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,


From: spring [mailto:spring-bounces@ietf.org] On Behalf Of Ron Bonica
Sent: Friday, January 10, 2020 8:14 PM
To: Pablo Camarillo (pcamaril)
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Chairs,

I believe that we have two independent requests for a comparison of the ben=
efits of SRv6 over SR-MPLS in the network programming draft.

A comparison of the benefits of SRv6 over SR-MPLS is one thing that could p=
ossibly be discussed if there is interest from the WG.
E.g. to help network provider make a choice, or in the context of "beyond S=
Rv6" to help the WG identify the benefit/cost analysis of existing solution=
s and what we want to achieve with new/extensions to SR data planes.

But why do you think that this would belong to draft-ietf-spring-srv6-netwo=
rk-programming?

Thanks,
--Bruno


                                                            Ron




Juniper Business Use Only
From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> On B=
ehalf Of Pablo Camarillo (pcamaril)
Sent: Friday, January 10, 2020 11:55 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,

If you want to discuss your analysis please let's do so in a separate email=
 thread out of the context of the Working Group Last Call of draft-ietf-spr=
ing-srv6-network-programming.

As I said before: draft-ietf-spring-srv6-network-programming is a Standards=
 Track document and this topic is not about any standardization, hence out =
of scope of this document.

Same applies to other content (e.g. illustrations) that was formerly in net=
work programming and we moved to a separate draft since it was not standard=
izing anything at all and was merely informative.

Thanks,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Tuesday, 7 January 2020 at 19:17
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Pablo,

RFC 8354 reinforces my analysis in https://mailarchive.ietf.org/arch/msg/sp=
ring/3WGuQumIfcmH281nwq3s9Un6raI<https://urldefense.com/v3/__https:/mailarc=
hive.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6raI__;!!NEt6yMaO-gk!S=
olNvh35q4NS-PTVWOxXAzbTnMHltfvPWi_OSjhMYkmm_NucR6imYrrLvc35Kat6$>. Are you =
saying that you agree with this analysis?

                                             Ron






Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Tuesday, January 7, 2020 4:17 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,

SPRING has already done this work and documented the SRv6 use-cases in RFC8=
354 before progressing with the SRv6 standardization.

Further on, draft-ietf-spring-srv6-network-programming is a Standards Track=
 document.
I fail to see how a cite from RFC8354 or any other text on "SRv6 vs SR-MPLS=
" standardises anything at all.
Note that we have already removed text from draft-ietf-spring-srv6-network-=
programming (e.g. illustrations) because it was not standardising anything.

Thank you for the suggestion,
Pablo.

From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> on b=
ehalf of Ron Bonica <rbonica=3D40juniper.net@dmarc.ietf.org<mailto:rbonica=
=3D40juniper.net@dmarc.ietf.org>>
Date: Monday, 30 December 2019 at 11:08
To: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: [spring] draft-ietf-spring-srv6-network-programming: Relative adva=
ntages of SRv6

Pablo,

Would you consider adding a short section to the draft explaining the relat=
ive advantages of SRv6 over SR-MPLS? This section would explain why an netw=
ork operator would deploy SRv6 instead of SR-MPLS.

                                                                           =
              Ron



Juniper Business Use Only

Please excuse any typos, sent from my 'smart'phone.

___________________________________________________________________________=
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Orange decline toute responsabilite si ce message a ete altere, deforme ou =
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This message and its attachments may contain confidential or privileged inf=
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modified, changed or falsified.

Thank you.

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______________________________________________



Ce message et ses pieces jointes peuvent contenir des informations confiden=
tielles ou privilegiees et ne doivent donc

pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler

a l'expediteur et le detruire ainsi que les pieces jointes. Les messages el=
ectroniques etant susceptibles d'alteration,

Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.



This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;

they should not be distributed, used or copied without authorisation.

If you have received this email in error, please notify the sender and dele=
te this message and its attachments.

As emails may be altered, Orange is not liable for messages that have been =
modified, changed or falsified.

Thank you.

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______________________________________________



Ce message et ses pieces jointes peuvent contenir des informations confiden=
tielles ou privilegiees et ne doivent donc

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 ce message par erreur, veuillez le signaler

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Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.



This message and its attachments may contain confidential or privileged inf=
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they should not be distributed, used or copied without authorisation.

If you have received this email in error, please notify the sender and dele=
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--_000_BN7PR05MB3938570E66E468E8528DD885AE0D0BN7PR05MB3938namp_
Content-Type: text/html; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable

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<body lang=3D"EN-US" link=3D"#0563C1" vlink=3D"#954F72">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">Pablo,<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">It is difficult to =
see how you can add information by removing a few words.<o:p></o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">Let&#8217;s begin w=
ith the text in </span>
<a href=3D"https://mailarchive.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3=
s9Un6raI">https://mailarchive.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s=
9Un6raI</a>. If you can see other advantages of SRv6 over SR-MPLS, we can a=
dd that information to the text in
 my original message.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron=
<o:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0in;margin=
-bottom:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b><span style=3D"font-size:11.0pt">From:</span></b>=
<span style=3D"font-size:11.0pt"> Pablo Camarillo (pcamaril) &lt;pcamaril@c=
isco.com&gt;
<br>
<b>Sent:</b> Thursday, January 16, 2020 1:09 PM<br>
<b>To:</b> Ron Bonica &lt;rbonica@juniper.net&gt;; bruno.decraene@orange.co=
m<br>
<b>Cc:</b> spring@ietf.org<br>
<b>Subject:</b> Re: Introduction of draft-ietf-spring-srv6-network-programm=
ing (was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6)<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;color=
:black">Ron,</span><span style=3D"font-size:11.0pt;color:black;mso-fareast-=
language:EN-GB"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"caret-color: rgb(0, 0, 0);font-variant-caps=
: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adju=
st: auto;-webkit-text-stroke-width: 0px;word-spacing:0px">
<span lang=3D"EN-GB" style=3D"font-size:11.0pt;color:black">&nbsp;<o:p></o:=
p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;color=
:black">I believe we can easily close this with the following diff:<o:p></o=
:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;color=
:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;color=
:black">&lt;Old&gt;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Co=
urier New&quot;;color:black;mso-fareast-language:EN-GB">Network programming=
 combines segment routing<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Co=
urier New&quot;;color:black;mso-fareast-language:EN-GB">&nbsp;&nbsp; functi=
ons, both simple and complex, to achieve a networking objective<o:p></o:p><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Co=
urier New&quot;;color:black;mso-fareast-language:EN-GB">&nbsp;&nbsp; that g=
oes beyond mere packet routing.</span><span lang=3D"EN-GB" style=3D"font-si=
ze:11.0pt;color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;color=
:black">&lt;/Old&gt;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;color=
:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;color=
:black">&lt;New&gt;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Co=
urier New&quot;;color:black;mso-fareast-language:EN-GB">Network programming=
 combines segment routing functions to achieve a networking objective<o:p><=
/o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Co=
urier New&quot;;color:black;mso-fareast-language:EN-GB">&nbsp;&nbsp; using =
segments that can represent any instruction, topological or service based.<=
o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;color=
:black">&lt;/New&gt;</span><span style=3D"font-size:11.0pt;color:black"><o:=
p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"caret-color: rgb(0, 0, 0);font-variant-caps=
: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adju=
st: auto;-webkit-text-stroke-width: 0px;word-spacing:0px">
<span lang=3D"EN-GB" style=3D"font-size:11.0pt;color:black">&nbsp;</span><s=
pan style=3D"font-size:11.0pt;color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"caret-color: rgb(0, 0, 0);font-variant-caps=
: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adju=
st: auto;-webkit-text-stroke-width: 0px;word-spacing:0px">
<span lang=3D"EN-GB" style=3D"font-size:11.0pt;color:black">Thanks,</span><=
span style=3D"font-size:11.0pt;color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"caret-color: rgb(0, 0, 0);font-variant-caps=
: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adju=
st: auto;-webkit-text-stroke-width: 0px;word-spacing:0px">
<span lang=3D"EN-GB" style=3D"font-size:11.0pt;color:black">Pablo.</span><s=
pan style=3D"font-size:11.0pt;color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><span style=3D"color:b=
lack">From: </span>
</b><span style=3D"color:black">Ron Bonica &lt;<a href=3D"mailto:rbonica@ju=
niper.net">rbonica@juniper.net</a>&gt;<br>
<b>Date: </b>Thursday, 16 January 2020 at 16:58<br>
<b>To: </b>&quot;<a href=3D"mailto:bruno.decraene@orange.com">bruno.decraen=
e@orange.com</a>&quot; &lt;<a href=3D"mailto:bruno.decraene@orange.com">bru=
no.decraene@orange.com</a>&gt;, &quot;Pablo Camarillo (pcamaril)&quot; &lt;=
<a href=3D"mailto:pcamaril@cisco.com">pcamaril@cisco.com</a>&gt;<br>
<b>Cc: </b>&quot;<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&quo=
t; &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&gt;<br>
<b>Subject: </b>RE: Introduction of draft-ietf-spring-srv6-network-programm=
ing (was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6)</span><span style=3D"color:black;mso-fareast-language:E=
N-GB"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt"><o:p>&nbsp;</o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Bruno,<span lang=3D"ES"><=
o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<span lang=3D"ES"><=
o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Would you like Pablo and =
me to develop text offline and bring it back to the mailing list? Or would =
you prefer us to craft the text in a few emails on the mailing list?<span l=
ang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<span lang=3D"ES"><=
o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;Ron<span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<span lang=3D"ES"><=
o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<span lang=3D"ES"><=
o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<span lang=3D"ES"><=
o:p></o:p></span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.00=
01pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b>From:</b> <a href=3D"m=
ailto:bruno.decraene@orange.com">
bruno.decraene@orange.com</a> &lt;<a href=3D"mailto:bruno.decraene@orange.c=
om">bruno.decraene@orange.com</a>&gt;
<br>
<b>Sent:</b> Thursday, January 16, 2020 9:00 AM<br>
<b>To:</b> Pablo Camarillo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco.=
com">pcamaril@cisco.com</a>&gt;; Ron Bonica &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><br>
<b>Subject:</b> RE: Introduction of draft-ietf-spring-srv6-network-programm=
ing (was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6)<span lang=3D"ES"><o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<span lang=3D"ES"><=
o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"FR" style=
=3D"color:#1F497D">Pablo,</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"FR" style=
=3D"color:#1F497D">&nbsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"color:#1F4=
97D">Thanks for the reply.</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"color:#1F4=
97D">I&#8217;m not seen explicitly what you are proposing to address Ron&#8=
217;s comment, regarding the clarification of this sentence in the draft.</=
span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"color:#1F4=
97D">May I again suggest that both of you follow up to progress on a resolu=
tion to clarify the meaning of this sentence in the draft?</span><span lang=
=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"color:#1F4=
97D">&nbsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"color:#1F4=
97D">Thanks,</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"color:#1F4=
97D">Bruno</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"color:#1F4=
97D">&nbsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"color:#1F4=
97D">&nbsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><b><span style=3D"font-=
size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">From:</span></b><spa=
n style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif"> Pab=
lo Camarillo (pcamaril) [</span><a href=3D"mailto:pcamaril@cisco.com"><span=
 style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">mailt=
o:pcamaril@cisco.com</span></a><span style=3D"font-size:10.0pt;font-family:=
&quot;Tahoma&quot;,sans-serif">]
<br>
<b>Sent:</b> Tuesday, January 14, 2020 6:43 PM<br>
<b>To:</b> </span><a href=3D"mailto:rbonica@juniper.net"><span style=3D"fon=
t-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">rbonica@juniper.ne=
t</span></a><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,=
sans-serif">; DECRAENE Bruno TGI/OLN<br>
<b>Cc:</b> </span><a href=3D"mailto:spring@ietf.org"><span style=3D"font-si=
ze:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">spring@ietf.org</span>=
</a><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-ser=
if"><br>
<b>Subject:</b> Introduction of draft-ietf-spring-srv6-network-programming =
(was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative adva=
ntages of SRv6)</span><span lang=3D"ES"><o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt">&nbsp;<span lang=3D"ES"=
><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB">(U=
pdated the subject to reflect the new topic of this thread: the introductio=
n of this draft)</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB">&n=
bsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB">Br=
uno,</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB">&n=
bsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB">Yo=
u are correct. In essence we are saying the same thing as the 3<sup>rd</sup=
> line of RFC8402.</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span style=3D"font-siz=
e:10.0pt;font-family:&quot;Courier New&quot;;color:black">A segment can rep=
resent any instruction, topological or</span><span lang=3D"ES"><o:p></o:p><=
/span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span style=3D"font-siz=
e:10.0pt;font-family:&quot;Courier New&quot;;color:black">&nbsp;&nbsp; serv=
ice based.</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB">&n=
bsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB">Fo=
r example, for service programming we have a draft-ietf-spring-sr-service-p=
rogramming. This goes beyond mere packet routing. NET-PGM provides the base=
 and draft-ietf-spring-sr-service-programming
 builds on top of that.</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB">&n=
bsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB">Th=
anks,</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB">Pa=
blo</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:71.4pt"><span lang=3D"EN-GB">&n=
bsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><b><span style=3D"colo=
r:black">From:
</span></b><span style=3D"color:black">&quot;</span><a href=3D"mailto:bruno=
.decraene@orange.com">bruno.decraene@orange.com</a><span style=3D"color:bla=
ck">&quot; &lt;</span><a href=3D"mailto:bruno.decraene@orange.com">bruno.de=
craene@orange.com</a><span style=3D"color:black">&gt;<br>
<b>Date: </b>Tuesday, 14 January 2020 at 11:02<br>
<b>To: </b>Ron Bonica &lt;</span><a href=3D"mailto:rbonica@juniper.net">rbo=
nica@juniper.net</a><span style=3D"color:black">&gt;, &quot;Pablo Camarillo=
 (pcamaril)&quot; &lt;</span><a href=3D"mailto:pcamaril@cisco.com">pcamaril=
@cisco.com</a><span style=3D"color:black">&gt;<br>
<b>Cc: </b>&quot;</span><a href=3D"mailto:spring@ietf.org">spring@ietf.org<=
/a><span style=3D"color:black">&quot; &lt;</span><a href=3D"mailto:spring@i=
etf.org">spring@ietf.org</a><span style=3D"color:black">&gt;<br>
<b>Subject: </b>RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6</span><span lang=3D"ES"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt">&nbsp;<span lang=3D"ES=
"><o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span style=3D"color:#=
1F497D">Hello Ron, Pablo,</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span style=3D"color:#=
1F497D">&nbsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt"><b><span style=3D"font=
-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">From:</span></b><sp=
an style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif"> Ro=
n Bonica [</span><a href=3D"mailto:rbonica@juniper.net"><span style=3D"font=
-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">mailto:rbonica@juni=
per.net</span></a><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&=
quot;,sans-serif">]
<br>
<b>Sent:</b> Monday, January 13, 2020 9:38 PM<br>
<b>To:</b> DECRAENE Bruno TGI/OLN<br>
<b>Cc:</b> </span><a href=3D"mailto:spring@ietf.org"><span style=3D"font-si=
ze:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">spring@ietf.org</span>=
</a><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-ser=
if">; Pablo Camarillo (pcamaril)<br>
<b>Subject:</b> RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6</span><span lang=3D"ES"><o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt">&nbsp;<span lang=3D"ES=
"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt">Hello Bruno.<span lang=
=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt">&nbsp;<span lang=3D"ES=
"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt">According to the netwo=
rk programming draft, &#8220;Network programming combines segment routing f=
unctions, both simple and complex, to achieve a networking objective that g=
oes beyond mere packet routing.&#8221;<span lang=3D"ES"><o:p></o:p></span><=
/p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt">&nbsp;<span lang=3D"ES=
"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt">Sadly, the document of=
fers little insight as to what those non-routing objectives might be.<span =
lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span style=3D"color:#=
1F497D">Ron,</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span style=3D"color:#=
1F497D">Thank you for elaborating on this comment. The scope of the revised=
 comment seem to me more focused and now indeed related to this document.</=
span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span style=3D"color:#=
1F497D">&nbsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span style=3D"color:#=
1F497D">Ron, Pablo,
</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span style=3D"color:#=
1F497D">May I suggest that you both follow up to progress on a resolution o=
n the comment on this sentence?</span><span lang=3D"ES"><o:p></o:p></span><=
/p>
<pre style=3D"margin-left:107.4pt"><span style=3D"color:#1F497D">e.g. clari=
fy what is meant by &#8220;beyond packet routing&#8221;, and/or what is exa=
ctly meant by this sentence beyond what is already stated in the SR archite=
cture (which for example, but not restricted to, states that</span><span st=
yle=3D"font-size:10.0pt;color:#1F497D">&nbsp; &#8220;</span><span style=3D"=
font-size:10.0pt;font-family:&quot;Courier New&quot;">A segment can represe=
nt any instruction, topological or service based.&#8221;</span><span style=
=3D"font-size:10.0pt;color:#1F497D"> )</span><o:p></o:p></pre>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span style=3D"color:#=
1F497D">If this can&#8217;t be reasonably clarified, worse case could possi=
bly be to remove this sentence or fall back to a reference to the/a SR arch=
itecture RFC/section/sentence. As of today,
 I don&#8217;t assume that this point would be a blocking point to progress=
 that document or to delay it for a long time.</span><span lang=3D"ES"><o:p=
></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span style=3D"color:#=
1F497D">&nbsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span style=3D"color:#=
1F497D">&nbsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span style=3D"color:#=
1F497D">Thank you,</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span style=3D"color:#=
1F497D">--Bruno</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span style=3D"color:#=
1F497D">&nbsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span style=3D"color:#=
1F497D">&nbsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt">&nbsp;<span lang=3D"ES=
"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt">If SRv6 offers somethi=
ng beyond the mere packet routing capabilities of SR-MPLS, the network prog=
ramming draft would be the most appropriate place to mention it. Otherwise,=
 SRv6 is just an IPv6 version of SR-MPLS.<span lang=3D"ES"><o:p></o:p></spa=
n></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt">&nbsp;<span lang=3D"ES=
"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt">&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
Ron<span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt">&nbsp;<span lang=3D"ES=
"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt">&nbsp;<span lang=3D"ES=
"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt">&nbsp;<span lang=3D"ES=
"><o:p></o:p></span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:0in;margin-right:0in;margin-bottom:0in;margin-left:142.8pt;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt"><b>From:</b> <a href=
=3D"mailto:bruno.decraene@orange.com">
bruno.decraene@orange.com</a> &lt;<a href=3D"mailto:bruno.decraene@orange.c=
om">bruno.decraene@orange.com</a>&gt;
<br>
<b>Sent:</b> Monday, January 13, 2020 8:12 AM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;<br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>; Pablo Ca=
marillo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco.com">pcamaril@cisco=
.com</a>&gt;<br>
<b>Subject:</b> RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<span lang=3D"ES"><o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt">&nbsp;<span lang=3D"ES=
"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt"><span style=3D"color:#=
1F497D">Ron,</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt"><span style=3D"color:#=
1F497D">&nbsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt"><span style=3D"color:#=
1F497D">&nbsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"font-s=
ize:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">From:</span></b><span=
 style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif"> spri=
ng [</span><a href=3D"mailto:spring-bounces@ietf.org"><span style=3D"font-s=
ize:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">mailto:spring-bounces=
@ietf.org</span></a><span style=3D"font-size:10.0pt;font-family:&quot;Tahom=
a&quot;,sans-serif">]
<b>On Behalf Of </b>Ron Bonica<br>
<b>Sent:</b> Friday, January 10, 2020 8:14 PM<br>
<b>To:</b> Pablo Camarillo (pcamaril)<br>
<b>Cc:</b> </span><a href=3D"mailto:spring@ietf.org"><span style=3D"font-si=
ze:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">spring@ietf.org</span>=
</a><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-ser=
if"><br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6</span><span lang=3D"ES"><o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<span lang=3D"ES">=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Chairs,<span lang=3D"ES"=
><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<span lang=3D"ES">=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">I believe that we have t=
wo independent requests for a comparison of the benefits of SRv6 over SR-MP=
LS in the network programming draft.<span lang=3D"ES"><o:p></o:p></span></p=
>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt"><span style=3D"color:#=
1F497D">&nbsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt"><span style=3D"color:#=
1F497D">A comparison of the benefits of SRv6 over SR-MPLS is one thing that=
 could possibly be discussed if there is interest from the WG.</span><span =
lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt"><span style=3D"color:#=
1F497D">E.g. to help network provider make a choice, or in the context of &=
#8220;beyond SRv6&#8221; to help the WG identify the benefit/cost analysis =
of existing solutions and what we want to achieve
 with new/extensions to SR data planes. </span><span lang=3D"ES"><o:p></o:p=
></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt"><span style=3D"color:#=
1F497D">&nbsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt"><span style=3D"color:#=
1F497D">But why do you think that this would belong to draft-ietf-spring-sr=
v6-network-programming?
</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt"><span style=3D"color:#=
1F497D">&nbsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt"><span style=3D"color:#=
1F497D">Thanks,</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt"><span style=3D"color:#=
1F497D">--Bruno</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:142.8pt"><span style=3D"color:#=
1F497D">&nbsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<span lang=3D"ES">=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ron<span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<span lang=3D"ES">=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<span lang=3D"ES">=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<span lang=3D"ES">=
<o:p></o:p></span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:0in;margin-right:0in;margin-bottom:0in;margin-left:2.0in;margin-bottom:.0=
001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b>From:</b> spring &lt;=
<a href=3D"mailto:spring-bounces@ietf.org">spring-bounces@ietf.org</a>&gt;
<b>On Behalf Of </b>Pablo Camarillo (pcamaril)<br>
<b>Sent:</b> Friday, January 10, 2020 11:55 AM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;<br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<span lang=3D"ES"><o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<span lang=3D"ES">=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Ron=
, </span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<span lang=3D"ES">=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">If you want to discuss y=
our analysis please let&#8217;s do so in a separate email thread out of the=
 context of the Working Group Last Call of draft-ietf-spring-srv6-network-p=
rogramming.<span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<span lang=3D"ES">=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">As I said before: <span =
lang=3D"EN-GB">
draft-ietf-spring-srv6-network-programming is a Standards Track document an=
d this topic is not about any standardization, hence out of scope of this d=
ocument.
</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Sam=
e applies to other content (e.g. illustrations) that was formerly in networ=
k programming and we moved to a separate draft since it was not standardizi=
ng anything at all and was merely informative.</span><span lang=3D"ES"><o:p=
></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;&nbsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Tha=
nks,</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Pab=
lo.</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB" sty=
le=3D"font-size:24.0pt">&nbsp;</span><span lang=3D"ES"><o:p></o:p></span></=
p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"color:=
black">From:
</span></b><span style=3D"color:black">Ron Bonica &lt;</span><a href=3D"mai=
lto:rbonica@juniper.net">rbonica@juniper.net</a><span style=3D"color:black"=
>&gt;<br>
<b>Date: </b>Tuesday, 7 January 2020 at 19:17<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><a href=3D"mai=
lto:pcamaril@cisco.com">pcamaril@cisco.com</a><span style=3D"color:black">&=
gt;<br>
<b>Cc: </b>SPRING WG &lt;</span><a href=3D"mailto:spring@ietf.org">spring@i=
etf.org</a><span style=3D"color:black">&gt;<br>
<b>Subject: </b>RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6</span><span lang=3D"ES"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<span lang=3D"ES">=
<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Pablo,<span lang=3D"ES">=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<span lang=3D"ES">=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">RFC 8354 reinforces my a=
nalysis in
<a href=3D"https://urldefense.com/v3/__https:/mailarchive.ietf.org/arch/msg=
/spring/3WGuQumIfcmH281nwq3s9Un6raI__;!!NEt6yMaO-gk!SolNvh35q4NS-PTVWOxXAzb=
TnMHltfvPWi_OSjhMYkmm_NucR6imYrrLvc35Kat6$">
https://mailarchive.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6raI</a=
>. Are you saying that you agree with this analysis?<span lang=3D"ES"><o:p>=
</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<span lang=3D"ES">=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; Ron<span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<span lang=3D"ES">=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<span lang=3D"ES">=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<span lang=3D"ES">=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<span lang=3D"ES">=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<span lang=3D"ES">=
<o:p></o:p></span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:2.0in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b>From:</b> Pablo Camar=
illo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco.com">pcamaril@cisco.co=
m</a>&gt;
<br>
<b>Sent:</b> Tuesday, January 7, 2020 4:17 AM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;<br>
<b>Cc:</b> SPRING WG &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org=
</a>&gt;<br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<span lang=3D"ES"><o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<span lang=3D"ES">=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Ron=
,</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">SPR=
ING has already done this work and documented the SRv6 use-cases in RFC8354=
 before progressing with the SRv6 standardization.</span><span lang=3D"ES">=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Fur=
ther on, draft-ietf-spring-srv6-network-programming is a Standards Track do=
cument.
</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">I f=
ail to see how a cite from RFC8354 or any other text on &#8220;SRv6 vs SR-M=
PLS&#8221; standardises anything at all.
</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Not=
e that we have already removed text from draft-ietf-spring-srv6-network-pro=
gramming (e.g. illustrations) because it was not standardising anything.</s=
pan><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Tha=
nk you for the suggestion,</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Pab=
lo.</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"color:=
black">From:
</span></b><span style=3D"color:black">spring &lt;</span><a href=3D"mailto:=
spring-bounces@ietf.org">spring-bounces@ietf.org</a><span style=3D"color:bl=
ack">&gt; on behalf of Ron Bonica &lt;</span><a href=3D"mailto:rbonica=3D40=
juniper.net@dmarc.ietf.org">rbonica=3D40juniper.net@dmarc.ietf.org</a><span=
 style=3D"color:black">&gt;<br>
<b>Date: </b>Monday, 30 December 2019 at 11:08<br>
<b>To: </b>SPRING WG &lt;</span><a href=3D"mailto:spring@ietf.org">spring@i=
etf.org</a><span style=3D"color:black">&gt;<br>
<b>Subject: </b>[spring] draft-ietf-spring-srv6-network-programming: Relati=
ve advantages of SRv6</span><span lang=3D"ES"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<span lang=3D"ES">=
<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Pablo,<span lang=3D"ES">=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<span lang=3D"ES">=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Would you consider addin=
g a short section to the draft explaining the relative advantages of SRv6 o=
ver SR-MPLS? This section would explain why an network operator would deplo=
y SRv6 instead of SR-MPLS.<span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<span lang=3D"ES">=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp; &nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ron<span lang=3D"ES"=
><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<span lang=3D"ES">=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:2.0in;margin-bottom:=
.0001pt;text-align:center;margin-bottom:..0001pt">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div id=3D"ms-outlook-mobile-signature">
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<span lang=3D"ES">=
<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Please excuse any typos,=
 sent from my 'smart'phone.<span lang=3D"ES"><o:p></o:p></span></p>
</div>
<pre style=3D"margin-left:142.8pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">______________________________________________=
___________________________________________________________________________=
</span><o:p></o:p></pre>
<pre style=3D"margin-left:142.8pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">&nbsp;</span><o:p></o:p></pre>
<pre style=3D"margin-left:142.8pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">Ce message et ses pieces jointes peuvent conte=
nir des informations confidentielles ou privilegiees et ne doivent donc</sp=
an><o:p></o:p></pre>
<pre style=3D"margin-left:142.8pt"><span lang=3D"ES" style=3D"font-size:10.=
0pt;font-family:&quot;Courier New&quot;">pas etre diffuses, exploites ou co=
pies sans autorisation. Si vous avez recu ce message par erreur, veuillez l=
e signaler</span><span lang=3D"ES"><o:p></o:p></span></pre>
<pre style=3D"margin-left:142.8pt"><span lang=3D"ES" style=3D"font-size:10.=
0pt;font-family:&quot;Courier New&quot;">a l'expediteur et le detruire ains=
i que les pieces jointes. Les messages electroniques etant susceptibles d'a=
lteration,</span><span lang=3D"ES"><o:p></o:p></span></pre>
<pre style=3D"margin-left:142.8pt"><span lang=3D"ES" style=3D"font-size:10.=
0pt;font-family:&quot;Courier New&quot;">Orange decline toute responsabilit=
e si ce message a ete altere, deforme ou falsifie. Merci.</span><span lang=
=3D"ES"><o:p></o:p></span></pre>
<pre style=3D"margin-left:142.8pt"><span lang=3D"ES" style=3D"font-size:10.=
0pt;font-family:&quot;Courier New&quot;">&nbsp;</span><span lang=3D"ES"><o:=
p></o:p></span></pre>
<pre style=3D"margin-left:142.8pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">This message and its attachments may contain c=
onfidential or privileged information that may be protected by law;</span><=
o:p></o:p></pre>
<pre style=3D"margin-left:142.8pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">they should not be distributed, used or copied=
 without authorisation.</span><o:p></o:p></pre>
<pre style=3D"margin-left:142.8pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">If you have received this email in error, plea=
se notify the sender and delete this message and its attachments.</span><o:=
p></o:p></pre>
<pre style=3D"margin-left:142.8pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">As emails may be altered, Orange is not liable=
 for messages that have been modified, changed or falsified.</span><o:p></o=
:p></pre>
<pre style=3D"margin-left:142.8pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">Thank you.</span><o:p></o:p></pre>
<pre style=3D"margin-left:107.4pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">______________________________________________=
___________________________________________________________________________=
</span><o:p></o:p></pre>
<pre style=3D"margin-left:107.4pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">&nbsp;</span><o:p></o:p></pre>
<pre style=3D"margin-left:107.4pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">Ce message et ses pieces jointes peuvent conte=
nir des informations confidentielles ou privilegiees et ne doivent donc</sp=
an><o:p></o:p></pre>
<pre style=3D"margin-left:107.4pt"><span lang=3D"ES" style=3D"font-size:10.=
0pt;font-family:&quot;Courier New&quot;">pas etre diffuses, exploites ou co=
pies sans autorisation. Si vous avez recu ce message par erreur, veuillez l=
e signaler</span><span lang=3D"ES"><o:p></o:p></span></pre>
<pre style=3D"margin-left:107.4pt"><span lang=3D"ES" style=3D"font-size:10.=
0pt;font-family:&quot;Courier New&quot;">a l'expediteur et le detruire ains=
i que les pieces jointes. Les messages electroniques etant susceptibles d'a=
lteration,</span><span lang=3D"ES"><o:p></o:p></span></pre>
<pre style=3D"margin-left:107.4pt"><span lang=3D"ES" style=3D"font-size:10.=
0pt;font-family:&quot;Courier New&quot;">Orange decline toute responsabilit=
e si ce message a ete altere, deforme ou falsifie. Merci.</span><span lang=
=3D"ES"><o:p></o:p></span></pre>
<pre style=3D"margin-left:107.4pt"><span lang=3D"ES" style=3D"font-size:10.=
0pt;font-family:&quot;Courier New&quot;">&nbsp;</span><span lang=3D"ES"><o:=
p></o:p></span></pre>
<pre style=3D"margin-left:107.4pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">This message and its attachments may contain c=
onfidential or privileged information that may be protected by law;</span><=
o:p></o:p></pre>
<pre style=3D"margin-left:107.4pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">they should not be distributed, used or copied=
 without authorisation.</span><o:p></o:p></pre>
<pre style=3D"margin-left:107.4pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">If you have received this email in error, plea=
se notify the sender and delete this message and its attachments.</span><o:=
p></o:p></pre>
<pre style=3D"margin-left:107.4pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">As emails may be altered, Orange is not liable=
 for messages that have been modified, changed or falsified.</span><o:p></o=
:p></pre>
<pre style=3D"margin-left:107.4pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">Thank you.</span><o:p></o:p></pre>
<pre style=3D"margin-left:.5in"><span lang=3D"FR">_________________________=
___________________________________________________________________________=
_____________________</span><o:p></o:p></pre>
<pre style=3D"margin-left:.5in"><span lang=3D"FR">&nbsp;</span><o:p></o:p><=
/pre>
<pre style=3D"margin-left:.5in"><span lang=3D"FR">Ce message et ses pieces =
jointes peuvent contenir des informations confidentielles ou privilegiees e=
t ne doivent donc</span><o:p></o:p></pre>
<pre style=3D"margin-left:.5in"><span lang=3D"FR">pas etre diffuses, exploi=
tes ou copies sans autorisation. Si vous avez recu ce message par erreur, v=
euillez le signaler</span><span lang=3D"ES"><o:p></o:p></span></pre>
<pre style=3D"margin-left:.5in"><span lang=3D"FR">a l'expediteur et le detr=
uire ainsi que les pieces jointes. Les messages electroniques etant suscept=
ibles d'alteration,<o:p></o:p></span></pre>
<pre style=3D"margin-left:.5in"><span lang=3D"FR">Orange decline toute resp=
onsabilite si ce message a ete altere, deforme ou falsifie. Merci.<o:p></o:=
p></span></pre>
<pre style=3D"margin-left:.5in"><span lang=3D"FR">&nbsp;<o:p></o:p></span><=
/pre>
<pre style=3D"margin-left:.5in"><span lang=3D"FR">This message and its atta=
chments may contain confidential or privileged information that may be prot=
ected by law;</span><o:p></o:p></pre>
<pre style=3D"margin-left:.5in"><span lang=3D"FR">they should not be distri=
buted, used or copied without authorisation.</span><o:p></o:p></pre>
<pre style=3D"margin-left:.5in"><span lang=3D"FR">If you have received this=
 email in error, please notify the sender and delete this message and its a=
ttachments.</span><o:p></o:p></pre>
<pre style=3D"margin-left:.5in"><span lang=3D"FR">As emails may be altered,=
 Orange is not liable for messages that have been modified, changed or fals=
ified.</span><o:p></o:p></pre>
<pre style=3D"margin-left:.5in"><span lang=3D"FR">Thank you.</span><span la=
ng=3D"ES"><o:p></o:p></span></pre>
</div>
</body>
</html>

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From: Ron Bonica <rbonica@juniper.net>
To: Greg Mirsky <gregimirsky@gmail.com>, "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/XZw3tLmO9BTK3VdfgN_8_j23pxc>
Subject: Re: [spring] WGLC - draft-ietf-spring-srv6-network-programming
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Greg,

I also have reservations about putting the OAM-flag in the routing header f=
or the following reasons:


  *   It has to be examined, even when Segments Left is equal to 0
  *   It is lost with PSP
  *   It has little to do with routing

                                                                           =
 Ron


From: spring <spring-bounces@ietf.org> On Behalf Of Greg Mirsky
Sent: Sunday, January 19, 2020 2:28 PM
To: Pablo Camarillo (pcamaril) <pcamaril@cisco.com>
Cc: spring@ietf.org
Subject: Re: [spring] WGLC - draft-ietf-spring-srv6-network-programming

Hi Pablo,
thank you for sharing your opinion. I understand that you believe that draf=
t-ietf-6man-spring-srv6-oam will not change and will be published with defi=
ning the O-flag as
      O-flag: OAM flag.  When set, it indicates that this packet is an
      operations and management (OAM) packet.
I, on the other hand, am much less certain that that draft and SRv6 OAM, in=
 general, require the special flag in SRH. I believe that progressing the d=
raft-ietf-spring-srv6-network-programming with the current text and the inf=
ormative reference increases the likelihood that an Errata must be filed on=
e the SRv6 OAM draft is published.
And as we're discussing a sub-section in the Operation section, I've got fe=
w questions on counters, hope you don't mind:

  *   As this is part of the operational considerations, should there be an=
y recommendation on the length of the counters?
  *   Also, the usual drawback of detailed statistics to characterize a flo=
w is scaling. Any consideration and recommendation on that?
  *   And last. I didn't find any of these counters being discussed in draf=
t-ietf-6man-spring-srv6-oam. Perhaps you can help me with a reference to th=
e SRv6 document that uses them..
Regards,
Greg


On Mon, Jan 13, 2020 at 10:23 AM Pablo Camarillo (pcamaril) <pcamaril@cisco=
.com<mailto:pcamaril@cisco.com>> wrote:
Hi Greg,

Inline.

Thank you,
Pablo.

From: Greg Mirsky <gregimirsky@gmail.com<mailto:gregimirsky@gmail.com>>
Date: Sunday, 12 January 2020 at 04:01
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Cc: "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sprin=
g@ietf.org>>
Subject: Re: WGLC - draft-ietf-spring-srv6-network-programming

Hi Pablo,
thank you for your expedient response. Please find my new notes under GIM>>=
 tag below in-line.

Regards,
Greg

On Fri, Jan 10, 2020 at 1:09 PM Pablo Camarillo (pcamaril) <pcamaril@cisco.=
com<mailto:pcamaril@cisco.com>> wrote:
Hi Greg,

Inline.

Thanks,
Pablo.

From: Greg Mirsky <gregimirsky@gmail.com<mailto:gregimirsky@gmail.com>>
Date: Tuesday, 7 January 2020 at 21:01
To: Bruno Decraene <bruno.decraene@orange.com<mailto:bruno.decraene@orange.=
com>>
Cc: SPRING WG List <spring@ietf.org<mailto:spring@ietf.org>>, "6man@ietf.or=
g<mailto:6man@ietf.org>" <6man@ietf.org<mailto:6man@ietf.org>>, draft-ietf-=
spring-srv6-network-programming <draft-ietf-spring-srv6-network-programming=
@ietf.org<mailto:draft-ietf-spring-srv6-network-programming@ietf.org>>
Subject: Re: WGLC - draft-ietf-spring-srv6-network-programming
Resent from: <alias-bounces@ietf.org<mailto:alias-bounces@ietf.org>>
Resent to: <cf@cisco.com<mailto:cf@cisco.com>>, <pcamaril@cisco.com<mailto:=
pcamaril@cisco.com>>, <john@leddy.net<mailto:john@leddy.net>>, <daniel.voye=
r@bell.ca<mailto:daniel.voyer@bell.ca>>, <satoru.matsushima@g.softbank.co.j=
p<mailto:satoru.matsushima@g.softbank.co.jp>>, <lizhenbin@huawei.com<mailto=
:lizhenbin@huawei.com>>
Resent date: Tuesday, 7 January 2020 at 21:01

Dear Authors, WG Chairs, et al.,
I hope I'm not too late with my comments and questions on the document. Ple=
ase kindly consider them as WG LC comments:
*         I have a question regarding the following pseudo-code:
  S08.   Max_LE =3D (Hdr Ext Len / 2) - 1
  S09.   If ((Last Entry > max_LE) or (Segments Left > (Last Entry+1)) {
  S10.      Send an ICMP Parameter Problem to the Source Address,
               Code 0 (Erroneous header field encountered),
               Pointer set to the Segments Left field.
               Interrupt packet processing and discard the packet.
  S11.   }

According to RFC 8200, Hdr Ext Len is the length of the extension header in=
 8-octet units, not including the first 8 octets. Thus, as I understand, ma=
x_LE is the length in 8-octet units of half of the extension header less on=
e. On the other hand, Last Entry and Segments Left are indices. Hence my qu=
estion, What is being compared in line S09 ( Last Entry > max_LE)? Length a=
nd index? If the goal is to use Hdr Ext Len to calculate the number of entr=
ies in the header, then what assumption is used in S08? Is it that the entr=
y's length is always and only 128 bits, i.e. 16 octets? I believe that usin=
g such an assumption is too narrowing and limiting to SRH.

PC: This has already been discussed with Adrian. Please check this thread: =
https://mailarchive.ietf.org/arch/msg/spring/IOA_4nlNPacD2v7Jue2dkGeOABk<ht=
tps://urldefense.com/v3/__https:/mailarchive.ietf.org/arch/msg/spring/IOA_4=
nlNPacD2v7Jue2dkGeOABk__;!!NEt6yMaO-gk!VMHP41W_vykFUzLLHFtba1B3jRPYZlG6mWgT=
4Md1iv5JpsOJ7DGNx3CwPrclGsIY$>
GIM>> Thank you for the reference. In some aspects, part of my statement is=
 repeating your answer to Adrain. The only length on an element in SRH cons=
idered is 128 bits, the length of IPv6 address. I think that your explanati=
on of how you have arrived at th following formula
    S08.   Max_LE =3D (Hdr Ext Len / 2) - 1
 will benefit the document.
My question to you and SPRING WG goes beyond this scenario. Considering pre=
sented in Singapore Unified Identifier proposals (draft-mirsky-6man-unified=
-id-sr<https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/draft-mi=
rsky-6man-unified-id-sr/__;!!NEt6yMaO-gk!VMHP41W_vykFUzLLHFtba1B3jRPYZlG6mW=
gT4Md1iv5JpsOJ7DGNx3CwPmazF_FF$> and draft-wmsaxw-6man-usid-id-use<https://=
urldefense.com/v3/__https:/datatracker.ietf.org/doc/draft-gmsm-bess-evpn-bf=
d/?include_text=3D1__;!!NEt6yMaO-gk!VMHP41W_vykFUzLLHFtba1B3jRPYZlG6mWgT4Md=
1iv5JpsOJ7DGNx3CwPlQOfPGd$>), I believe other scenarios of using SRH, with =
elements of length other than 128 bits should be accommodated, e.g., 32 bit=
s-long elements.
i.

PC: It is up to the draft-mirsky authors to standardize in their draft the =
changes to the SRH processing. As per today the draft-mirsky proposal is st=
ill an individual document.

*         Another question is to Section 6.3. What value do you see in this=
 section? I've noticed that draft-ietf-6man-spring-srv6-oam is in the Infor=
mational References section. I agree with that for the first sentence in th=
e section. But I believe that the second sentence that refers to the new O-=
bit and OAM behaviors defined in  draft-ietf-6man-spring-srv6-oam requires =
it to be moved into the Normative References section. Unless you'll decide =
to remove the section altogether.
PC: The O-bit and OAM behaviors described in draft-ietf-6man-spring-srv6-oa=
m are not required to understand or implement the technology described in d=
raft-ietf-spring-srv6-network-programming. However, they are relevant as to=
 provide additional information to the reader. Why would it be a normative =
reference?
GIM>> Ali and I are discussing several aspects of draft-ietf-6man-spring-sr=
v6-oam. For example, the O-bit is applicable to any OAM operation or to som=
e part of them. Note that OAM apparatus usually considered to include Fault=
 Management and Performance Monitoring protocols. Both may operate as proac=
tive or on-demand. Is the O-bit applicable to all OAM methods? Then, Fault =
Management OAM supports Continuity Check, Connectivity Verification and, fo=
r some networks, Automatic Protection Coordination. How O-bit is used in th=
ese methods? Now, to the Performance Monitoring OAM. I think that the O-bit=
 can be only used in dual-ended one-way PM OAM. How O-bit may be used in si=
ngle-ended two-way PM OAM? Can the O-bit support the Loss Measurement? As y=
ou may see, there are many questions to discuss and clarify in the document=
. I can imagine that the result of our work on draft-ietf-6man-spring-srv6-=
oam may be somewhat different from its current form. How to ensure synchron=
ization between SRv6 programming and OAM specifications?

PC: The current reference in draft-ietf-spring-srv6-network-programming doe=
s not explain particular mechanisms of draft-ietf-6man-spring-srv6-oam. It =
only says that draft-ietf-6man-spring-srv6-oam defines OAM mechanisms for S=
Rv6 as well as the O-bit. This is flexible enough as to be correct regardle=
ss of the changes that you make during the WGLC to draft-ietf-6man-spring-s=
rv6-oam.

Regards,
Greg

On Thu, Dec 5, 2019 at 9:15 AM <bruno.decraene@orange.com<mailto:bruno.decr=
aene@orange.com>> wrote:

Hello SPRING,



This email starts a two weeks Working Group Last Call on draft-ietf-spring-=
srv6-network-programming [1].



Please read this document if you haven't read the most recent version, and =
send your comments to the SPRING WG list, no later than December 20.



You may copy the 6MAN WG for IPv6 related comment, but consider not duplica=
ting emails on the 6MAN mailing list for the comments which are only spring=
 specifics.



If you are raising a point which you expect will be specifically debated on=
 the mailing list, consider using a specific email/thread for this point.

This may help avoiding that the thread become specific to this point and th=
at other points get forgotten (or that the thread get converted into parall=
el independent discussions)



Thank you,

Bruno



[1] https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-=
05<https://urldefense.com/v3/__https:/tools.ietf.org/html/draft-ietf-spring=
-srv6-network-programming-05__;!!NEt6yMaO-gk!VMHP41W_vykFUzLLHFtba1B3jRPYZl=
G6mWgT4Md1iv5JpsOJ7DGNx3CwPgy6NSUA$>




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</head>
<body lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal">Greg,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">I also have reservations about putting the OAM-flag =
in the routing header for the following reasons:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<ul style=3D"margin-top:0in" type=3D"disc">
<li class=3D"MsoListParagraph" style=3D"margin-left:0in;mso-list:l3 level1 =
lfo3">It has to be examined, even when Segments Left is equal to 0<o:p></o:=
p></li><li class=3D"MsoListParagraph" style=3D"margin-left:0in;mso-list:l3 =
level1 lfo3">It is lost with PSP<o:p></o:p></li><li class=3D"MsoListParagra=
ph" style=3D"margin-left:0in;mso-list:l3 level1 lfo3">It has little to do w=
ith routing<o:p></o:p></li></ul>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><b>From:</b> spring &lt;spring-bounces@ietf.org&gt; =
<b>On Behalf Of
</b>Greg Mirsky<br>
<b>Sent:</b> Sunday, January 19, 2020 2:28 PM<br>
<b>To:</b> Pablo Camarillo (pcamaril) &lt;pcamaril@cisco.com&gt;<br>
<b>Cc:</b> spring@ietf.org<br>
<b>Subject:</b> Re: [spring] WGLC - draft-ietf-spring-srv6-network-programm=
ing<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<div>
<p class=3D"MsoNormal">Hi Pablo,<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal">thank you for sharing your opinion. I understand tha=
t you believe&nbsp;that draft-ietf-6man-spring-srv6-oam will not change and=
 will be published with defining the O-flag as&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal">&nbsp; &nbsp; &nbsp; O-flag: OAM flag.&nbsp; When se=
t, it indicates that this packet is an<br>
&nbsp; &nbsp; &nbsp; operations and management (OAM) packet.<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal">I, on the other hand, am much less certain that that=
 draft and SRv6 OAM, in general, require the special flag in SRH. I believe=
 that progressing the&nbsp;draft-ietf-spring-srv6-network-programming with =
the current text and the informative reference
 increases the&nbsp;likelihood&nbsp;that an Errata must be filed one the SR=
v6 OAM draft is published.<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal">And as we're discussing a sub-section in the Operati=
on section, I've got few questions on counters, hope you don't mind:<o:p></=
o:p></p>
</div>
<div>
<ul type=3D"disc">
<li class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-=
alt:auto;mso-list:l0 level1 lfo6">
As this is part of the operational considerations, should there be any reco=
mmendation on the length of the counters?<o:p></o:p></li><li class=3D"MsoNo=
rmal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:=
l0 level1 lfo6">
Also, the usual drawback of detailed statistics to characterize a flow is s=
caling. Any consideration and recommendation on that?<o:p></o:p></li><li cl=
ass=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-alt:au=
to;mso-list:l0 level1 lfo6">
And last. I didn't find any of these counters being discussed in&nbsp;draft=
-ietf-6man-spring-srv6-oam. Perhaps you can help me with a reference to the=
 SRv6 document that uses them..<o:p></o:p></li></ul>
<div>
<p class=3D"MsoNormal">Regards,<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Greg<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<div>
<p class=3D"MsoNormal">On Mon, Jan 13, 2020 at 10:23 AM Pablo Camarillo (pc=
amaril) &lt;<a href=3D"mailto:pcamaril@cisco.com">pcamaril@cisco.com</a>&gt=
; wrote:<o:p></o:p></p>
</div>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0i=
n 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-=
bottom:5.0pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-GB">Hi Greg,</span><span lang=3D"ES"><o:p></o:p><=
/span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-GB">&nbsp;</span><span lang=3D"ES"><o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-GB">Inline.</span><span lang=3D"ES"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-GB">&nbsp;</span><span lang=3D"ES"><o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-GB">Thank you,</span><span lang=3D"ES"><o:p></o:p=
></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-GB">Pablo.</span><span lang=3D"ES"><o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-GB">&nbsp;</span><span lang=3D"ES"><o:p></o:p></s=
pan></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
<b><span style=3D"font-size:12.0pt;color:black">From: </span></b><span styl=
e=3D"font-size:12.0pt;color:black">Greg Mirsky &lt;<a href=3D"mailto:gregim=
irsky@gmail.com" target=3D"_blank">gregimirsky@gmail.com</a>&gt;<br>
<b>Date: </b>Sunday, 12 January 2020 at 04:01<br>
<b>To: </b></span><span style=3D"font-size:12.0pt">&#8220;<span style=3D"co=
lor:black">Pablo Camarillo (pcamaril)</span>&#8221;<span style=3D"color:bla=
ck"> &lt;<a href=3D"mailto:pcamaril@cisco.com" target=3D"_blank">pcamaril@c=
isco.com</a>&gt;<br>
<b>Cc: </b></span>&#8220;<span style=3D"color:black"><a href=3D"mailto:spri=
ng@ietf.org" target=3D"_blank">spring@ietf.org</a></span>&#8221;<span style=
=3D"color:black"> &lt;<a href=3D"mailto:spring@ietf.org" target=3D"_blank">=
spring@ietf.org</a>&gt;<br>
<b>Subject: </b>Re: WGLC </span>&#8211;<span style=3D"color:black"> draft-i=
etf-spring-srv6-network-programming</span></span><span lang=3D"ES"><o:p></o=
:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
&nbsp;<span lang=3D"ES"><o:p></o:p></span></p>
</div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
Hi Pablo, <span lang=3D"ES"><o:p></o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
thank you for your expedient response. Please find my new notes under GIM&g=
t;&gt; tag below in-line.<span lang=3D"ES"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
&nbsp;<span lang=3D"ES"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
Regards,<span lang=3D"ES"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
Greg<span lang=3D"ES"><o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
&nbsp;<span lang=3D"ES"><o:p></o:p></span></p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
On Fri, Jan 10, 2020 at 1:09 PM Pablo Camarillo (pcamaril) &lt;<span lang=
=3D"ES"><a href=3D"mailto:pcamaril@cisco.com" target=3D"_blank"><span lang=
=3D"EN-US">pcamaril@cisco.com</span></a></span>&gt; wrote:<span lang=3D"ES"=
><o:p></o:p></span></p>
</div>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0i=
n 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-=
bottom:5.0pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
<span lang=3D"EN-GB">Hi Greg,</span><span lang=3D"ES"><o:p></o:p></span></p=
>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
<span lang=3D"EN-GB">&nbsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
<span lang=3D"EN-GB">Inline.</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
<span lang=3D"EN-GB">&nbsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
<span lang=3D"EN-GB">Thanks,</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
<span lang=3D"EN-GB">Pablo.</span><span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
<span lang=3D"EN-GB">&nbsp;</span><span lang=3D"ES"><o:p></o:p></span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.0in">
<b><span style=3D"font-size:12.0pt;color:black">From: </span></b><span styl=
e=3D"font-size:12.0pt;color:black">Greg Mirsky &lt;</span><span lang=3D"ES"=
><a href=3D"mailto:gregimirsky@gmail.com" target=3D"_blank"><span lang=3D"E=
N-US" style=3D"font-size:12.0pt">gregimirsky@gmail.com</span></a></span><sp=
an style=3D"font-size:12.0pt;color:black">&gt;<br>
<b>Date: </b>Tuesday, 7 January 2020 at 21:01<br>
<b>To: </b>Bruno Decraene &lt;</span><span lang=3D"ES"><a href=3D"mailto:br=
uno.decraene@orange.com" target=3D"_blank"><span lang=3D"EN-US" style=3D"fo=
nt-size:12.0pt">bruno.decraene@orange.com</span></a></span><span style=3D"f=
ont-size:12.0pt;color:black">&gt;<br>
<b>Cc: </b>SPRING WG List &lt;</span><span lang=3D"ES"><a href=3D"mailto:sp=
ring@ietf.org" target=3D"_blank"><span lang=3D"EN-US" style=3D"font-size:12=
.0pt">spring@ietf.org</span></a></span><span style=3D"font-size:12.0pt;colo=
r:black">&gt;,
</span><span style=3D"font-size:12.0pt">&#8220;</span><span lang=3D"ES"><a =
href=3D"mailto:6man@ietf.org" target=3D"_blank"><span lang=3D"EN-US" style=
=3D"font-size:12.0pt">6man@ietf.org</span></a></span><span style=3D"font-si=
ze:12.0pt">&#8221;<span style=3D"color:black"> &lt;</span></span><span lang=
=3D"ES"><a href=3D"mailto:6man@ietf.org" target=3D"_blank"><span lang=3D"EN=
-US" style=3D"font-size:12.0pt">6man@ietf.org</span></a></span><span style=
=3D"font-size:12.0pt;color:black">&gt;,
 draft-ietf-spring-srv6-network-programming &lt;</span><span lang=3D"ES"><a=
 href=3D"mailto:draft-ietf-spring-srv6-network-programming@ietf.org" target=
=3D"_blank"><span lang=3D"EN-US" style=3D"font-size:12.0pt">draft-ietf-spri=
ng-srv6-network-programming@ietf.org</span></a></span><span style=3D"font-s=
ize:12.0pt;color:black">&gt;<br>
<b>Subject: </b>Re: WGLC </span><span style=3D"font-size:12.0pt">&#8211;<sp=
an style=3D"color:black"> draft-ietf-spring-srv6-network-programming<br>
<b>Resent from: </b>&lt;</span></span><span lang=3D"ES"><a href=3D"mailto:a=
lias-bounces@ietf.org" target=3D"_blank"><span lang=3D"EN-US" style=3D"font=
-size:12.0pt">alias-bounces@ietf.org</span></a></span><span style=3D"font-s=
ize:12.0pt;color:black">&gt;<br>
<b>Resent to: </b>&lt;</span><span lang=3D"ES"><a href=3D"mailto:cf@cisco.c=
om" target=3D"_blank"><span lang=3D"EN-US" style=3D"font-size:12.0pt">cf@ci=
sco.com</span></a></span><span style=3D"font-size:12.0pt;color:black">&gt;,=
 &lt;</span><span lang=3D"ES"><a href=3D"mailto:pcamaril@cisco.com" target=
=3D"_blank"><span lang=3D"EN-US" style=3D"font-size:12.0pt">pcamaril@cisco.=
com</span></a></span><span style=3D"font-size:12.0pt;color:black">&gt;,
 &lt;</span><span lang=3D"ES"><a href=3D"mailto:john@leddy.net" target=3D"_=
blank"><span lang=3D"EN-US" style=3D"font-size:12.0pt">john@leddy.net</span=
></a></span><span style=3D"font-size:12.0pt;color:black">&gt;, &lt;</span><=
span lang=3D"ES"><a href=3D"mailto:daniel.voyer@bell.ca" target=3D"_blank">=
<span lang=3D"EN-US" style=3D"font-size:12.0pt">daniel.voyer@bell.ca</span>=
</a></span><span style=3D"font-size:12.0pt;color:black">&gt;,
 &lt;</span><span lang=3D"ES"><a href=3D"mailto:satoru.matsushima@g.softban=
k.co.jp" target=3D"_blank"><span lang=3D"EN-US" style=3D"font-size:12.0pt">=
satoru.matsushima@g.softbank.co.jp</span></a></span><span style=3D"font-siz=
e:12.0pt;color:black">&gt;, &lt;</span><span lang=3D"ES"><a href=3D"mailto:=
lizhenbin@huawei.com" target=3D"_blank"><span lang=3D"EN-US" style=3D"font-=
size:12.0pt">lizhenbin@huawei.com</span></a></span><span style=3D"font-size=
:12.0pt;color:black">&gt;<br>
<b>Resent date: </b>Tuesday, 7 January 2020 at 21:01</span><span lang=3D"ES=
"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.0in">
&nbsp;<span lang=3D"ES"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.0in">
Dear Authors, WG Chairs, et al., <span lang=3D"ES"><o:p></o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.0in">
I hope I&#8217;m not too late with my comments and questions on the documen=
t. Please kindly consider them as WG LC comments:<span lang=3D"ES"><o:p></o=
:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:131.1pt">
<span style=3D"font-size:10.0pt;font-family:Symbol">&middot;</span><span st=
yle=3D"font-size:7.0pt;font-family:&quot;Times New Roman&quot;,serif">&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>I have a question regarding the following pseudo-code:<span lang=3D"=
ES"><o:p></o:p></span></p>
</div>
<blockquote style=3D"margin-left:30.0pt;margin-top:5.0pt;margin-right:0in;m=
argin-bottom:5.0pt">
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.0in">
&nbsp; S08. &nbsp; Max_LE =3D (Hdr Ext Len / 2) &#8211; 1<span lang=3D"ES">=
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.0in">
&nbsp; S09. &nbsp; If ((Last Entry &gt; max_LE) or (Segments Left &gt; (Las=
t Entry&#43;1)) {<span lang=3D"ES"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.0in">
&nbsp; S10. &nbsp; &nbsp; &nbsp;Send an ICMP Parameter Problem to the Sourc=
e Address,<span lang=3D"ES"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.0in">
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Code 0 (Erroneous he=
ader field encountered),<span lang=3D"ES"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.0in">
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Pointer set to the S=
egments Left field.<span lang=3D"ES"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.0in">
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Interrupt packet pro=
cessing and discard the packet.<span lang=3D"ES"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.0in">
&nbsp; S11. &nbsp; }<span lang=3D"ES"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.0in">
&nbsp;<span lang=3D"ES"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.0in">
According to RFC 8200, Hdr Ext Len is the length of the extension header in=
 8-octet units, not including the first 8 octets. Thus, as I understand, ma=
x_LE is the length in 8-octet units of half of the extension header less on=
e. On the other hand, Last Entry
 and Segments Left are indices. Hence my question, What is being compared i=
n line S09 ( Last Entry &gt; max_LE)? Length and index? If the goal is to u=
se Hdr Ext Len to calculate the number of entries in the header, then what =
assumption is used in S08? Is it that
 the entry&#8217;s length is always and only 128 bits, i.e. 16 octets? I be=
lieve that using such an assumption is too narrowing and limiting to SRH.<s=
pan lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
&nbsp;<span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
PC: This has already been discussed with Adrian. Please check this thread: =
<span lang=3D"ES">
<a href=3D"https://urldefense.com/v3/__https:/mailarchive.ietf.org/arch/msg=
/spring/IOA_4nlNPacD2v7Jue2dkGeOABk__;!!NEt6yMaO-gk!VMHP41W_vykFUzLLHFtba1B=
3jRPYZlG6mWgT4Md1iv5JpsOJ7DGNx3CwPrclGsIY$" target=3D"_blank"><span lang=3D=
"EN-US" style=3D"color:windowtext;text-decoration:none">https://mailarchive=
.ietf.org/arch/msg/spring/IOA_4nlNPacD2v7Jue2dkGeOABk</span></a><o:p></o:p>=
</span></p>
</div>
</blockquote>
</div>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
GIM&gt;&gt; Thank you for the reference. In some aspects, part of my statem=
ent is repeating your answer to Adrain. The only length on an element in SR=
H considered is 128 bits, the length of IPv6 address. I think that your exp=
lanation of how you have arrived at th
 following formula<span lang=3D"ES"><o:p></o:p></span></p>
</div>
</div>
<blockquote style=3D"margin-left:30.0pt;margin-top:5.0pt;margin-right:0in;m=
argin-bottom:5.0pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
&nbsp; &nbsp; S08. &nbsp; Max_LE =3D (Hdr Ext Len / 2) &#8211; 1&nbsp; &nbs=
p;&nbsp;<span lang=3D"ES"><o:p></o:p></span></p>
</div>
</div>
</blockquote>
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
&nbsp;will benefit the document.&nbsp;<span lang=3D"ES"><o:p></o:p></span><=
/p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
My question to you and SPRING WG goes beyond this scenario. Considering pre=
sented in Singapore Unified Identifier proposals (<span lang=3D"ES"><a href=
=3D"https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/draft-mirsk=
y-6man-unified-id-sr/__;!!NEt6yMaO-gk!VMHP41W_vykFUzLLHFtba1B3jRPYZlG6mWgT4=
Md1iv5JpsOJ7DGNx3CwPmazF_FF$" target=3D"_blank"><span lang=3D"EN-US">draft-=
mirsky-6man-unified-id-sr</span></a></span>&nbsp;and&nbsp;<span lang=3D"ES"=
><a href=3D"https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/dra=
ft-gmsm-bess-evpn-bfd/?include_text=3D1__;!!NEt6yMaO-gk!VMHP41W_vykFUzLLHFt=
ba1B3jRPYZlG6mWgT4Md1iv5JpsOJ7DGNx3CwPlQOfPGd$" target=3D"_blank"><span lan=
g=3D"EN-US">draft-wmsaxw-6man-usid-id-use</span></a></span>),
 I believe other scenarios of using SRH, with elements of length other than=
 128 bits should be accommodated, e.g., 32 bits-long elements.<span lang=3D=
"ES"><o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
i.<span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
&nbsp;<span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">PC: It is up to the draft-mirsky authors to standardize in their d=
raft the changes to the SRH processing. As per today the draft-mirsky propo=
sal is still an individual document.<span lang=3D"ES"><o:p></o:p></span></p=
>
<div>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0i=
n 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-=
bottom:5.0pt">
<div>
<div>
<div>
<blockquote style=3D"margin-left:30.0pt;margin-top:5.0pt;margin-right:0in;m=
argin-bottom:5.0pt">
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
&nbsp;<span lang=3D"ES"><o:p></o:p></span></p>
</div>
</blockquote>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:131.1pt">
<span lang=3D"ES" style=3D"font-size:10.0pt;font-family:Symbol">&middot;</s=
pan><span style=3D"font-size:7.0pt;font-family:&quot;Times New Roman&quot;,=
serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>Another question is to Section 6.3. What value do you see in this se=
ction? I've noticed that draft-ietf-6man-spring-srv6-oam is in the Informat=
ional References section. I agree with that for the first sentence in the s=
ection. But I believe that the second
 sentence that refers to the new O-bit and OAM behaviors defined in&nbsp; d=
raft-ietf-6man-spring-srv6-oam requires it to be moved into the Normative R=
eferences section. Unless you'll decide to remove the section altogether.<s=
pan lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
PC: The O-bit and OAM behaviors described in draft-ietf-6man-spring-srv6-oa=
m are not required to understand or implement the technology described in d=
raft-ietf-spring-srv6-network-programming. However, they are relevant as to=
 provide additional information
 to the reader. Why would it be a normative reference?<span lang=3D"ES"><o:=
p></o:p></span></p>
</div>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:.5in">
GIM&gt;&gt; Ali and I are discussing several aspects of draft-ietf-6man-spr=
ing-srv6-oam. For example, the O-bit is applicable to any OAM operation or =
to some part of them. Note that OAM apparatus usually considered to include=
 Fault Management and Performance Monitoring
 protocols. Both may operate as proactive or on-demand. Is the O-bit applic=
able to all OAM methods? Then, Fault Management OAM supports Continuity Che=
ck, Connectivity Verification and, for some networks, Automatic Protection =
Coordination. How O-bit is used
 in these methods? Now, to the Performance Monitoring OAM. I think that the=
 O-bit can be only used in dual-ended one-way PM OAM. How O-bit may be used=
 in single-ended two-way PM OAM? Can the O-bit support the Loss Measurement=
? As you may see, there are many
 questions to discuss and clarify in the document. I can imagine that the r=
esult of our work on draft-ietf-6man-spring-srv6-oam may be somewhat differ=
ent from its current form. How to ensure synchronization between SRv6 progr=
amming and OAM specifications?<span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<span lang=3D"ES"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">PC: The current reference in draft-ietf-spring-srv6-network-progra=
mming does not explain particular mechanisms of draft-ietf-6man-spring-srv6=
-oam. It only says that draft-ietf-6man-spring-srv6-oam
 defines OAM mechanisms for SRv6 as well as the O-bit. This is flexible eno=
ugh as to be correct regardless of the changes that you make during the WGL=
C to draft-ietf-6man-spring-srv6-oam.<span lang=3D"ES"><o:p></o:p></span></=
p>
</div>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0i=
n 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-=
bottom:5.0pt">
<div>
<div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.0in">
&nbsp;<span lang=3D"ES"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.0in">
Regards,<span lang=3D"ES"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.0in">
Greg<span lang=3D"ES"><o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.0in">
&nbsp;<span lang=3D"ES"><o:p></o:p></span></p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.0in">
On Thu, Dec 5, 2019 at 9:15 AM &lt;<span lang=3D"ES"><a href=3D"mailto:brun=
o.decraene@orange.com" target=3D"_blank"><span lang=3D"EN-US">bruno.decraen=
e@orange.com</span></a></span>&gt; wrote:<span lang=3D"ES"><o:p></o:p></spa=
n></p>
</div>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0i=
n 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-=
bottom:5.0pt">
<div>
<div>
<pre style=3D"margin-left:1.0in">Hello SPRING,<span lang=3D"ES"><o:p></o:p>=
</span></pre>
<pre style=3D"margin-left:1.0in">&nbsp;<span lang=3D"ES"><o:p></o:p></span>=
</pre>
<pre style=3D"margin-left:1.0in">This email starts a two weeks Working Grou=
p Last Call on draft-ietf-spring-srv6-network-programming [1].<span lang=3D=
"ES"><o:p></o:p></span></pre>
<pre style=3D"margin-left:1.0in">&nbsp;<span lang=3D"ES"><o:p></o:p></span>=
</pre>
<pre style=3D"margin-left:1.0in">Please read this document if you haven't r=
ead the most recent version, and send your comments to the SPRING WG list, =
no later than December 20.<span lang=3D"ES"><o:p></o:p></span></pre>
<pre style=3D"margin-left:1.0in">&nbsp;<span lang=3D"ES"><o:p></o:p></span>=
</pre>
<pre style=3D"margin-left:1.0in">You may copy the 6MAN WG for IPv6 related =
comment, but consider not duplicating emails on the 6MAN mailing list for t=
he comments which are only spring specifics.<span lang=3D"ES"><o:p></o:p></=
span></pre>
<pre style=3D"margin-left:1.0in">&nbsp;<span lang=3D"ES"><o:p></o:p></span>=
</pre>
<pre style=3D"margin-left:1.0in">If you are raising a point which you expec=
t will be specifically debated on the mailing list, consider using a specif=
ic email/thread for this point.<span lang=3D"ES"><o:p></o:p></span></pre>
<pre style=3D"margin-left:1.0in">This may help avoiding that the thread bec=
ome specific to this point and that other points get forgotten (or that the=
 thread get converted into parallel independent discussions)<span lang=3D"E=
S"><o:p></o:p></span></pre>
<pre style=3D"margin-left:1.0in">&nbsp;<span lang=3D"ES"><o:p></o:p></span>=
</pre>
<pre style=3D"margin-left:1.0in">Thank you,<span lang=3D"ES"><o:p></o:p></s=
pan></pre>
<pre style=3D"margin-left:1.0in">Bruno<span lang=3D"ES"><o:p></o:p></span><=
/pre>
<pre style=3D"margin-left:1.0in">&nbsp;<span lang=3D"ES"><o:p></o:p></span>=
</pre>
<pre style=3D"margin-left:1.0in">[1] <span lang=3D"ES"><a href=3D"https://u=
rldefense.com/v3/__https:/tools.ietf.org/html/draft-ietf-spring-srv6-networ=
k-programming-05__;!!NEt6yMaO-gk!VMHP41W_vykFUzLLHFtba1B3jRPYZlG6mWgT4Md1iv=
5JpsOJ7DGNx3CwPgy6NSUA$" target=3D"_blank"><span lang=3D"EN-US">https://too=
ls.ietf.org/html/draft-ietf-spring-srv6-network-programming-05</span></a><o=
:p></o:p></span></pre>
<pre style=3D"margin-left:1.0in">&nbsp;<span lang=3D"ES"><o:p></o:p></span>=
</pre>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:1.0in">
&nbsp;<span lang=3D"ES"><o:p></o:p></span></p>
</div>
<pre style=3D"margin-left:1.0in"><span lang=3D"FR">________________________=
___________________________________________________________________________=
______________________</span><span lang=3D"ES"><o:p></o:p></span></pre>
<pre style=3D"margin-left:1.0in"><span lang=3D"FR">&nbsp;</span><span lang=
=3D"ES"><o:p></o:p></span></pre>
<pre style=3D"margin-left:1.0in"><span lang=3D"FR">Ce message et ses pieces=
 jointes peuvent contenir des informations confidentielles ou privilegiees =
et ne doivent donc</span><span lang=3D"ES"><o:p></o:p></span></pre>
<pre style=3D"margin-left:1.0in"><span lang=3D"FR">pas etre diffuses, explo=
ites ou copies sans autorisation. Si vous avez recu ce message par erreur, =
veuillez le signaler</span><span lang=3D"ES"><o:p></o:p></span></pre>
<pre style=3D"margin-left:1.0in"><span lang=3D"FR">a l'expediteur et le det=
ruire ainsi que les pieces jointes. Les messages electroniques etant suscep=
tibles d'alteration,</span><span lang=3D"ES"><o:p></o:p></span></pre>
<pre style=3D"margin-left:1.0in"><span lang=3D"FR">Orange decline toute res=
ponsabilite si ce message a ete altere, deforme ou falsifie. Merci.</span><=
span lang=3D"ES"><o:p></o:p></span></pre>
<pre style=3D"margin-left:1.0in"><span lang=3D"FR">&nbsp;</span><span lang=
=3D"ES"><o:p></o:p></span></pre>
<pre style=3D"margin-left:1.0in"><span lang=3D"FR">This message and its att=
achments may contain confidential or privileged information that may be pro=
tected by law;</span><span lang=3D"ES"><o:p></o:p></span></pre>
<pre style=3D"margin-left:1.0in"><span lang=3D"FR">they should not be distr=
ibuted, used or copied without authorisation.</span><span lang=3D"ES"><o:p>=
</o:p></span></pre>
<pre style=3D"margin-left:1.0in"><span lang=3D"FR">If you have received thi=
s email in error, please notify the sender and delete this message and its =
attachments.</span><span lang=3D"ES"><o:p></o:p></span></pre>
<pre style=3D"margin-left:1.0in"><span lang=3D"FR">As emails may be altered=
, Orange is not liable for messages that have been modified, changed or fal=
sified.</span><span lang=3D"ES"><o:p></o:p></span></pre>
<pre style=3D"margin-left:1.0in"><span lang=3D"FR">Thank you.</span><span l=
ang=3D"ES"><o:p></o:p></span></pre>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
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Administrative Requests: <span lang=3D"ES"><a href=3D"https://urldefense.co=
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From: "Zafar Ali (zali)" <zali@cisco.com>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>, Loa Andersson <loa@pi.nu>, Ole Troan <otroan@employees.org>, 6man WG <ipv6@ietf.org>, SPRING WG <spring@ietf.org>
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Thread-Topic: [spring] 6man w.g. last call for <draft-ietf-6man-spring-srv6-oam>
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Subject: Re: [spring] 6man w.g. last call for <draft-ietf-6man-spring-srv6-oam>
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From: "Zafar Ali (zali)" <zali@cisco.com>
To: Ron Bonica <rbonica@juniper.net>, Ole Troan <otroan@employees.org>, "6man WG" <ipv6@ietf.org>, SPRING WG <spring@ietf.org>
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--_000_1F046F6395114DD5BD0DB49C549805F0ciscocom_--


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To: "Zafar Ali (zali)" <zali@cisco.com>, Brian E Carpenter <brian.e.carpenter@gmail.com>, Ole Troan <otroan@employees.org>, 6man WG <ipv6@ietf.org>, SPRING WG <spring@ietf.org>
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From: Loa Andersson <loa@pi.nu>
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Subject: Re: [spring] 6man w.g. last call for <draft-ietf-6man-spring-srv6-oam>
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Zafar,

Thanks for addressing this. However one thing remains. The text is now:

"There MAY be additional segments preceding the END.OP/ END.OTP SID."

I don't think there is a need for requirement language in that sentence,
I read it as straightforward English:

"There may be additional segments preceding the END.OP/ END.OTP SID."

Would do very well.

Can you explain the need for requirement language?

/Loa



On 22/01/2020 01:55, Zafar Ali (zali) wrote:
> Hi Brian,
> 
> Many thanks for your comments. Much appreciated.
> 
> The working copy of the new version in the repository addresses your/ 
> Loa’s comment highlighted in your email.
> 
> https://github.com/ietf-6man/srv6-oam
> 
> Thanks
> 
> Regards … Zafar
> 
> *From: *spring <spring-bounces@ietf.org> on behalf of Brian E Carpenter 
> <brian.e.carpenter@gmail.com>
> *Organization: *University of Auckland
> *Date: *Monday, January 20, 2020 at 2:57 PM
> *To: *Loa Andersson <loa@pi.nu>, Ole Troan <otroan@employees.org>, 6man 
> WG <ipv6@ietf.org>, SPRING WG <spring@ietf.org>
> *Cc: *6man Chairs <6man-chairs@ietf.org>
> *Subject: *Re: [spring] 6man w.g. last call for 
> <draft-ietf-6man-spring-srv6-oam>
> 
> To be clear about one of the points in the review, MAY NOT is not 
> allowed by RFC2119 because it is totally ambiguous in English (since it 
> can mean either "must not" or "might not"). In any case the phrase "MAY 
> or MAY NOT" is not of any normative value. It presumably simply means 
> "MAY" in all cases in this draft.
> 
> Regards
> 
>     Brian
> 
> On 20-Jan-20 20:54, Loa Andersson wrote:
> 
>     WG,
> 
>     I have reviewed the entire document.
> 
>     First, I'm not an IPv6 expert.
> 
>     As far as I can see the sued on
> 
>     I have not used github, I had a couple of attempts to learn the tools,
> 
>     but so far I have failed.
> 
>     I have instead done what I use to do, use the review tool with Word.
> 
>     Since I sometimes have a pushback on the docx-format I save the result
> 
>     as a .txt-file. Drawback is that all comment show up as refrences to a
> 
>     list at the end of the document. But you can't get everything.
> 
>     /Loa
> 
>     PS gives this output for this draft; it is quite a lot and in itself are
> 
>     so much that it is worth sending it bck to the authors and asking them
> 
>     to fix it. Was the noits tool checked at all before starting the wglc?
> 
>     idnits 2.16.02
> 
>     /tmp/draft-ietf-6man-spring-srv6-oam-03.txt:
> 
>          Checking boilerplate required by RFC 5378 and the IETF Trust (see
> 
>     https://trustee.ietf.org/license-info):
> 
>     ----------------------------------------------------------------------------
> 
>             No issues found here.
> 
>          Checking nits according to
> 
>     https://www.ietf.org/id-info/1id-guidelines.txt:
> 
>     ----------------------------------------------------------------------------
> 
>             No issues found here.
> 
>          Checking nits according to https://www.ietf.org/id-info/checklist :
> 
>     ----------------------------------------------------------------------------
> 
>          ** There are 3 instances of too long lines in the document, the
> 
>     longest one
> 
>             being 6 characters in excess of 72.
> 
>          == There are 5 instances of lines with non-RFC3849-compliant IPv6
> 
>     addresses
> 
>             in the document.  If these are example addresses, they
>     should be
> 
>     changed.
> 
>          Miscellaneous warnings:
> 
>     ----------------------------------------------------------------------------
> 
>          == The copyright year in the IETF Trust and authors Copyright Line
> 
>     does not
> 
>             match the current year
> 
>          -- The exact meaning of the all-uppercase expression 'MAY NOT'
>     is not
> 
>             defined in RFC 2119.  If it is intended as a requirements
> 
>     expression, it
> 
>             should be rewritten using one of the combinations defined in
>     RFC 2119;
> 
>             otherwise it should not be all-uppercase.
> 
>          == The expression 'MAY NOT', while looking like RFC 2119
>     requirements
> 
>     text,
> 
>             is not defined in RFC 2119, and should not be used.  Consider
> 
>     using 'MUST
> 
>             NOT' instead (if that is what you mean).
> 
>             Found 'MAY NOT' in this paragraph:
> 
>             To perform ICMPv6 ping to a target SID an echo request
>     message is
> 
>             generated by the initiator with the END.OP or END.OTP SID in the
> 
>             segment-list of the SRH immediately preceding the target SID.
> 
>     There MAY
> 
>             or MAY NOT be additional segments preceding the END.OP/
>     END.OTP SID.
> 
>          == The expression 'MAY NOT', while looking like RFC 2119
>     requirements
> 
>     text,
> 
>             is not defined in RFC 2119, and should not be used.  Consider
> 
>     using 'MUST
> 
>             NOT' instead (if that is what you mean).
> 
>             Found 'MAY NOT' in this paragraph:
> 
>             To traceroute a target SID a probe message is generated by the
> 
>             initiator with the END.OP or END.OTP SID in the segment-list of
> 
>     the SRH
> 
>             immediately preceding the target SID.  There MAY or MAY NOT be
> 
>     additional
> 
>             segments preceding the END.OP/ END.OTP SID.
> 
>          -- The document date (December 18, 2019) is 32 days in the
>     past.  Is this
> 
>             intentional?
> 
>          Checking references for intended status: Proposed Standard
> 
>     ----------------------------------------------------------------------------
> 
>             (See RFCs 3967 and 4897 for information about using normative
> 
>     references
> 
>             to lower-maturity documents in RFCs)
> 
>          == Missing Reference: 'SL' is mentioned on line 190, but not
>     defined
> 
>          -- Looks like a reference, but probably isn't: '2' on line 191
> 
>          -- Looks like a reference, but probably isn't: '1' on line 191
> 
>          -- Looks like a reference, but probably isn't: '0' on line 192
> 
>          == Missing Reference: 'RFC7011' is mentioned on line 230, but
>     not defined
> 
>          == Missing Reference: 'I-D.ietf-idr-bgpls-srv6-ext' is
>     mentioned on line
> 
>             241, but not defined
> 
>          == Missing Reference: 'RFC792' is mentioned on line 701, but
>     not defined
> 
>          == Missing Reference: 'RFC 8403' is mentioned on line 660, but not
> 
>     defined
> 
>          == Unused Reference: 'RFC0792' is defined on line 823, but no
>     explicit
> 
>             reference was found in the text
> 
>          == Unused Reference: 'RFC8403' is defined on line 843, but no
>     explicit
> 
>             reference was found in the text
> 
>          == Outdated reference: A later version (-08) exists of
> 
>             draft-ietf-spring-srv6-network-programming-06
> 
>             Summary: 1 error (**), 0 flaws (~~), 12 warnings (==), 5
>     comments
> 
>     (--).
> 
>             Run idnits with the --verbose option for more detailed
>     information
> 
>     about
> 
>             the items above.
> 
>     On 05/12/2019 04:53, Ole Troan wrote:
> 
>         Hello,
> 
>              As agreed in the working group session in Singapore, this
>         message starts a new two week 6MAN Working Group Last Call on
>         advancing:
> 
>              Title    : Operations, Administration, and Maintenance
>         (OAM) in Segment Routing Networks with IPv6 Data plane (SRv6)
> 
>              Author   : Z. Ali, C. Filsfils, S. Matsushima, D. Voyer, M.
>         Chen
> 
>              Filename : draft-ietf-6man-spring-srv6-oam-02
> 
>              Pages    : 23
> 
>              Date     : 2019-11-20
> 
>         https://datatracker.ietf.org/doc/draft-ietf-6man-spring-srv6-oam/
> 
>         as a Proposed Standard.
> 
>         Substantive comments and statements of support for publishing
>         this document should be directed to the mailing list.
> 
>         Editorial suggestions can be sent to the author. This last call
>         will end on the 18th of December 2019.
> 
>         To improve document quality and ensure that bugs are caught as
>         early as possible, we would require at least
> 
>         two reviewers to do a complete review of the document.  Please
>         let the chairs know if you are willing to be a reviewer.
> 
>         The last call will be forwarded to the spring working group,
>         with discussion directed to the ipv6 list.
> 
>         Thanks,
> 
>         Bob & Ole, 6man co-chairs
> 
>         --------------------------------------------------------------------
> 
>         IETF IPv6 working group mailing list
> 
>         ipv6@ietf.org <mailto:ipv6@ietf.org>
> 
>         Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
> 
>         --------------------------------------------------------------------
> 
>     --------------------------------------------------------------------
> 
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> 
>     ipv6@ietf.org <mailto:ipv6@ietf.org>
> 
>     Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
> 
>     --------------------------------------------------------------------
> 
> _______________________________________________
> 
> spring mailing list
> 
> spring@ietf.org <mailto:spring@ietf.org>
> 
> https://www.ietf.org/mailman/listinfo/spring
> 

-- 


Loa Andersson                        email: loa@pi.nu
Senior MPLS Expert
Bronze Dragon Consulting             phone: +46 739 81 21 64


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From: "Zafar Ali (zali)" <zali@cisco.com>
To: Loa Andersson <loa@pi.nu>, Brian E Carpenter <brian.e.carpenter@gmail.com>, Ole Troan <otroan@employees.org>, 6man WG <ipv6@ietf.org>, SPRING WG <spring@ietf.org>
CC: 6man Chairs <6man-chairs@ietf.org>, "Zafar Ali (zali)" <zali@cisco.com>
Thread-Topic: [spring] 6man w.g. last call for <draft-ietf-6man-spring-srv6-oam>
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Date: Wed, 22 Jan 2020 05:15:00 +0000
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References: <ECC21DA8-0156-41D2-921E-177389D3C904@employees.org> <09adcd59-13ae-448b-6a48-5e7471dbd121@pi.nu> <15d6aa7b-b786-57c7-2014-1c76edbc4e77@gmail.com> <82A1B481-B638-4D9B-AC90-A9195CA531F5@cisco.com> <8b407450-0bc5-502b-2907-e05efebc2e84@pi.nu>
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Subject: Re: [spring] 6man w.g. last call for <draft-ietf-6man-spring-srv6-oam>
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From: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
To: Greg Mirsky <gregimirsky@gmail.com>
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From: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
To: Erik Kline <ek.ietf@gmail.com>
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Thread-Topic: [spring] SRv6 Network Programming - ICMP Source Address Selection
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Subject: Re: [spring] SRv6 Network Programming - ICMP Source Address Selection
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From: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
To: Ron Bonica <rbonica@juniper.net>, "bruno.decraene@orange.com" <bruno.decraene@orange.com>
CC: "spring@ietf.org" <spring@ietf.org>
Thread-Topic: Introduction of draft-ietf-spring-srv6-network-programming (was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6)
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Date: Wed, 22 Jan 2020 06:56:09 +0000
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--_000_5642B72CCD204C42A933BA4B0E3B8A8Cciscocom_--


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To: "Zafar Ali (zali)" <zali@cisco.com>, Brian E Carpenter <brian.e.carpenter@gmail.com>, Ole Troan <otroan@employees.org>, 6man WG <ipv6@ietf.org>, SPRING WG <spring@ietf.org>
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From: Loa Andersson <loa@pi.nu>
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Date: Wed, 22 Jan 2020 18:02:47 +0800
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/UYdQ6fTrSq8f6tHXmOgQlF_h-rU>
Subject: Re: [spring] 6man w.g. last call for <draft-ietf-6man-spring-srv6-oam>
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Zafar,

Tnx - 1 down 36 to go!

Actually a bit more with the NITs output. Can you take a look at the 
long lines next, it should be easy edits.

The first two long lines are in this paragraph:

248	     S01.1. IF SRH.Flags.O-flag is set and local configuration permits
249	            O-flag processing THEN
250	            a. Make a copy of the packet.
251	            b. Send the copied packet, along with a timestamp
252	               to the OAM process.      ;; Ref1
253	     Ref1: An implementation SHOULD copy and record the timestamp as 
soon as
254	     possible during packet processing. Timestamp is not carried in 
the packet
255	     forwarded to the next hop.

Line 253 has four characters "n as" outside the allowed 72 characters
Line 254 has the word "packet" outside the allowed 72 characters

This is inside the figure and I think that you can left shift the
enire figure, otherwise I don't see a problem with introducing line
breaks.

In figure 4:

639	     > traceroute srv6 B:4:C52 via segment-list B:2:C31

641	     Tracing the route to SID function B:4:C52
642	      1  2001:DB8:1:2:21 0.512 msec 0.425 msec 0.374 msec
643	         SRH: (B:4:C52, B:4:OTP, B:2:C31; SL=2)
644	      2  2001:DB8:2:3:31 0.721 msec 0.810 msec 0.795 msec
645	         SRH: (B:4:C52, B:4:OTP, B:2:C31; SL=1)
646	      3  2001:DB8:3:4::41 0.921 msec 0.816 msec 0.759 msec
647	         SRH: (B:4:C52, B:4:OTP, B:2:C31; SL=1)

649	        Figure 4 A sample output for hop-by-hop traceroute to a SID 
function

Line 649 has "tion" of "SID function" (fig numbring) outside the allowed
72 characters, again should be easy to left shif or introduce line
breaks.

The reason I want to address this first is that it is easy, but also
a show stopper.

And last, thugh I hate to add late comments - abbreviations, I have not
gone through the entire document to look for unexpanded abbreviations,
but there is at least one "NPU". Which I read as Network Processing Unit,
what confuses me is that it is not in the RFC Editors abbreviation list
at all. I think there is an action point for the wg chairs to have it
introduced, and for the authros to expand, as well as going through the
document an d make sure that everthing that should be expanded is.

/Loa

On 22/01/2020 13:15, Zafar Ali (zali) wrote:
> Hi Loa,
> 
> Many thanks for your follow-up.
> 
> Based on your feedback, we have updated the version in the GitHub.
> 
> Thanks
> 
> Regards … Zafar
> 
> *From: *Loa Andersson <loa@pi.nu>
> *Date: *Tuesday, January 21, 2020 at 9:59 PM
> *To: *"Zafar Ali (zali)" <zali@cisco.com>, Brian E Carpenter 
> <brian.e.carpenter@gmail.com>, Ole Troan <otroan@employees.org>, 6man WG 
> <ipv6@ietf.org>, SPRING WG <spring@ietf.org>
> *Cc: *6man Chairs <6man-chairs@ietf.org>
> *Subject: *Re: [spring] 6man w.g. last call for 
> <draft-ietf-6man-spring-srv6-oam>
> 
> Zafar,
> 
> Thanks for addressing this. However one thing remains. The text is now:
> 
> "There MAY be additional segments preceding the END.OP/ END.OTP SID."
> 
> I don't think there is a need for requirement language in that sentence,
> 
> I read it as straightforward English:
> 
> "There may be additional segments preceding the END.OP/ END.OTP SID."
> 
> Would do very well.
> 
> Can you explain the need for requirement language?
> 
> /Loa
> 
> On 22/01/2020 01:55, Zafar Ali (zali) wrote:
> 
>     Hi Brian,
> 
>     Many thanks for your comments. Much appreciated.
> 
>     The working copy of the new version in the repository addresses your/
> 
>     Loa’s comment highlighted in your email.
> 
>     https://github.com/ietf-6man/srv6-oam
> 
>     Thanks
> 
>     Regards … Zafar
> 
>     *From: *spring <spring-bounces@ietf.org
>     <mailto:spring-bounces@ietf.org>> on behalf of Brian E Carpenter
> 
>     <brian.e.carpenter@gmail.com <mailto:brian.e.carpenter@gmail.com>>
> 
>     *Organization: *University of Auckland
> 
>     *Date: *Monday, January 20, 2020 at 2:57 PM
> 
>     *To: *Loa Andersson <loa@pi.nu <mailto:loa@pi.nu>>, Ole Troan
>     <otroan@employees.org <mailto:otroan@employees.org>>, 6man
> 
>     WG <ipv6@ietf.org <mailto:ipv6@ietf.org>>, SPRING WG
>     <spring@ietf.org <mailto:spring@ietf.org>>
> 
>     *Cc: *6man Chairs <6man-chairs@ietf.org <mailto:6man-chairs@ietf.org>>
> 
>     *Subject: *Re: [spring] 6man w.g. last call for
> 
>     <draft-ietf-6man-spring-srv6-oam>
> 
>     To be clear about one of the points in the review, MAY NOT is not
> 
>     allowed by RFC2119 because it is totally ambiguous in English (since it
> 
>     can mean either "must not" or "might not"). In any case the phrase "MAY
> 
>     or MAY NOT" is not of any normative value. It presumably simply means
> 
>     "MAY" in all cases in this draft.
> 
>     Regards
> 
>           Brian
> 
>     On 20-Jan-20 20:54, Loa Andersson wrote:
> 
>           WG,
> 
>           I have reviewed the entire document.
> 
>           First, I'm not an IPv6 expert.
> 
>           As far as I can see the sued on
> 
>           I have not used github, I had a couple of attempts to learn
>     the tools,
> 
>           but so far I have failed.
> 
>           I have instead done what I use to do, use the review tool with
>     Word.
> 
>           Since I sometimes have a pushback on the docx-format I save
>     the result
> 
>           as a .txt-file. Drawback is that all comment show up as
>     refrences to a
> 
>           list at the end of the document. But you can't get everything.
> 
>           /Loa
> 
>           PS gives this output for this draft; it is quite a lot and in
>     itself are
> 
>           so much that it is worth sending it bck to the authors and
>     asking them
> 
>           to fix it. Was the noits tool checked at all before starting
>     the wglc?
> 
>           idnits 2.16.02
> 
>           /tmp/draft-ietf-6man-spring-srv6-oam-03.txt:
> 
>                Checking boilerplate required by RFC 5378 and the IETF
>     Trust (see
> 
>     https://trustee.ietf.org/license-info):
> 
>          
>     ----------------------------------------------------------------------------
> 
>                   No issues found here.
> 
>                Checking nits according to
> 
>     https://www.ietf.org/id-info/1id-guidelines.txt:
> 
>          
>     ----------------------------------------------------------------------------
> 
>                   No issues found here.
> 
>                Checking nits according to
>     https://www.ietf.org/id-info/checklist :
> 
>          
>     ----------------------------------------------------------------------------
> 
>                ** There are 3 instances of too long lines in the
>     document, the
> 
>           longest one
> 
>                   being 6 characters in excess of 72.
> 
>                == There are 5 instances of lines with
>     non-RFC3849-compliant IPv6
> 
>           addresses
> 
>                   in the document.  If these are example addresses, they
> 
>           should be
> 
>           changed.
> 
>                Miscellaneous warnings:
> 
>          
>     ----------------------------------------------------------------------------
> 
>                == The copyright year in the IETF Trust and authors
>     Copyright Line
> 
>           does not
> 
>                   match the current year
> 
>                -- The exact meaning of the all-uppercase expression 'MAY
>     NOT'
> 
>           is not
> 
>                   defined in RFC 2119.  If it is intended as a requirements
> 
>           expression, it
> 
>                   should be rewritten using one of the combinations
>     defined in
> 
>           RFC 2119;
> 
>                   otherwise it should not be all-uppercase.
> 
>                == The expression 'MAY NOT', while looking like RFC 2119
> 
>           requirements
> 
>           text,
> 
>                   is not defined in RFC 2119, and should not be
>     used.  Consider
> 
>           using 'MUST
> 
>                   NOT' instead (if that is what you mean).
> 
>                   Found 'MAY NOT' in this paragraph:
> 
>                   To perform ICMPv6 ping to a target SID an echo request
> 
>           message is
> 
>                   generated by the initiator with the END.OP or END.OTP
>     SID in the
> 
>                   segment-list of the SRH immediately preceding the
>     target SID.
> 
>           There MAY
> 
>                   or MAY NOT be additional segments preceding the END.OP/
> 
>           END.OTP SID.
> 
>                == The expression 'MAY NOT', while looking like RFC 2119
> 
>           requirements
> 
>           text,
> 
>                   is not defined in RFC 2119, and should not be
>     used.  Consider
> 
>           using 'MUST
> 
>                   NOT' instead (if that is what you mean).
> 
>                   Found 'MAY NOT' in this paragraph:
> 
>                   To traceroute a target SID a probe message is
>     generated by the
> 
>                   initiator with the END.OP or END.OTP SID in the
>     segment-list of
> 
>           the SRH
> 
>                   immediately preceding the target SID.  There MAY or
>     MAY NOT be
> 
>           additional
> 
>                   segments preceding the END.OP/ END.OTP SID.
> 
>                -- The document date (December 18, 2019) is 32 days in the
> 
>           past.  Is this
> 
>                   intentional?
> 
>                Checking references for intended status: Proposed Standard
> 
>          
>     ----------------------------------------------------------------------------
> 
>                   (See RFCs 3967 and 4897 for information about using
>     normative
> 
>           references
> 
>                   to lower-maturity documents in RFCs)
> 
>                == Missing Reference: 'SL' is mentioned on line 190, but not
> 
>           defined
> 
>                -- Looks like a reference, but probably isn't: '2' on
>     line 191
> 
>                -- Looks like a reference, but probably isn't: '1' on
>     line 191
> 
>                -- Looks like a reference, but probably isn't: '0' on
>     line 192
> 
>                == Missing Reference: 'RFC7011' is mentioned on line 230, but
> 
>           not defined
> 
>                == Missing Reference: 'I-D.ietf-idr-bgpls-srv6-ext' is
> 
>           mentioned on line
> 
>                   241, but not defined
> 
>                == Missing Reference: 'RFC792' is mentioned on line 701, but
> 
>           not defined
> 
>                == Missing Reference: 'RFC 8403' is mentioned on line
>     660, but not
> 
>           defined
> 
>                == Unused Reference: 'RFC0792' is defined on line 823, but no
> 
>           explicit
> 
>                   reference was found in the text
> 
>                == Unused Reference: 'RFC8403' is defined on line 843, but no
> 
>           explicit
> 
>                   reference was found in the text
> 
>                == Outdated reference: A later version (-08) exists of
> 
>                   draft-ietf-spring-srv6-network-programming-06
> 
>                   Summary: 1 error (**), 0 flaws (~~), 12 warnings (==), 5
> 
>           comments
> 
>           (--).
> 
>                   Run idnits with the --verbose option for more detailed
> 
>           information
> 
>           about
> 
>                   the items above.
> 
>           On 05/12/2019 04:53, Ole Troan wrote:
> 
>               Hello,
> 
>                    As agreed in the working group session in Singapore, this
> 
>               message starts a new two week 6MAN Working Group Last Call on
> 
>               advancing:
> 
>                    Title    : Operations, Administration, and Maintenance
> 
>               (OAM) in Segment Routing Networks with IPv6 Data plane (SRv6)
> 
>                    Author   : Z. Ali, C. Filsfils, S. Matsushima, D.
>     Voyer, M.
> 
>               Chen
> 
>                    Filename : draft-ietf-6man-spring-srv6-oam-02
> 
>                    Pages    : 23
> 
>                    Date     : 2019-11-20
> 
>     https://datatracker.ietf.org/doc/draft-ietf-6man-spring-srv6-oam/
> 
>               as a Proposed Standard.
> 
>               Substantive comments and statements of support for publishing
> 
>               this document should be directed to the mailing list.
> 
>               Editorial suggestions can be sent to the author. This last
>     call
> 
>               will end on the 18th of December 2019.
> 
>               To improve document quality and ensure that bugs are caught as
> 
>               early as possible, we would require at least
> 
>               two reviewers to do a complete review of the document.  Please
> 
>               let the chairs know if you are willing to be a reviewer.
> 
>               The last call will be forwarded to the spring working group,
> 
>               with discussion directed to the ipv6 list.
> 
>               Thanks,
> 
>               Bob & Ole, 6man co-chairs
> 
>              
>     --------------------------------------------------------------------
> 
>               IETF IPv6 working group mailing list
> 
>     ipv6@ietf.org <mailto:ipv6@ietf.org> <mailto:ipv6@ietf.org>
> 
>               Administrative Requests:
>     https://www.ietf.org/mailman/listinfo/ipv6
> 
>              
>     --------------------------------------------------------------------
> 
>          
>     --------------------------------------------------------------------
> 
>           IETF IPv6 working group mailing list
> 
>     ipv6@ietf.org <mailto:ipv6@ietf.org> <mailto:ipv6@ietf.org>
> 
>           Administrative Requests:
>     https://www.ietf.org/mailman/listinfo/ipv6
> 
>          
>     --------------------------------------------------------------------
> 
>     _______________________________________________
> 
>     spring mailing list
> 
>     spring@ietf.org <mailto:spring@ietf.org> <mailto:spring@ietf.org>
> 
>     https://www.ietf.org/mailman/listinfo/spring
> 
> -- 
> 
> Loa Andersson                        email: loa@pi.nu <mailto:loa@pi.nu>
> 
> Senior MPLS Expert
> 
> Bronze Dragon Consulting             phone: +46 739 81 21 64
> 
> 
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
> 

-- 


Loa Andersson                        email: loa@pi.nu
Senior MPLS Expert
Bronze Dragon Consulting             phone: +46 739 81 21 64


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From: Ron Bonica <rbonica@juniper.net>
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>, "bruno.decraene@orange.com" <bruno.decraene@orange.com>, "EXT - Byron.Hoskins@sprint.com" <Byron.Hoskins@sprint.com>
CC: "spring@ietf.org" <spring@ietf.org>
Thread-Topic: Introduction of draft-ietf-spring-srv6-network-programming (was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6)
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/ftSuS9OtK7rCKmvzDBpckt0phIg>
Subject: Re: [spring] Introduction of draft-ietf-spring-srv6-network-programming (was Re: draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6)
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--_000_BN7PR05MB393816AD3D6BFDE53B550FE3AE0C0BN7PR05MB3938namp_
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Pablo,

If there are any advantages of SRv6 over SR-MPLS, it would be a mistake to =
change the sentence that you propose to change.

A better approach would be to enumerate the advantages. A brief bullet list=
, appended to the text that I have already offered might be enough. This mi=
ght also satisfy Byron's request.

                                                   Ron



Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com>
Sent: Wednesday, January 22, 2020 1:56 AM
To: Ron Bonica <rbonica@juniper.net>; bruno.decraene@orange.com
Cc: spring@ietf.org
Subject: Re: Introduction of draft-ietf-spring-srv6-network-programming (wa=
s Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advanta=
ges of SRv6)

Ron,

Let's remain focus on the one sentence that you objected to.

<Old>
Network programming combines segment routing
   functions, both simple and complex, to achieve a networking objective
   that goes beyond mere packet routing.
</Old>

<New>
Network programming combines segment routing functions to achieve a network=
ing objective
   using segments that can represent any instruction, topological or servic=
e based.
</New>

I have proposed a resolution for this sentence by modifying that sentence i=
n the introduction and aligning it with -indeed copy pasting- RFC8402. Does=
 this address your comment on that particular sentence?

Thank you,
Pablo.


Hello Bruno.

According to the network programming draft, "Network programming combines s=
egment routing functions, both simple and complex, to achieve a networking =
objective that goes beyond mere packet routing".
Sadly, the document offers little insight as to what those non-routing obje=
ctives might be.
Ron,
Thank you for elaborating on this comment. The scope of the revised comment=
 seem to me more focused and now indeed related to this document.

Ron, Pablo,
May I suggest that you both follow up to progress on a resolution on the co=
mment on this sentence?


From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Tuesday, 21 January 2020 at 15:43
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>, "bruno.decraene@orange.com<mailto:bruno.decraene@orange.com>" <bruno=
.decraene@orange.com<mailto:bruno.decraene@orange.com>>
Cc: "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sprin=
g@ietf.org>>
Subject: RE: Introduction of draft-ietf-spring-srv6-network-programming (wa=
s Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advanta=
ges of SRv6)

Pablo,

It is difficult to see how you can add information by removing a few words.

Let's begin with the text in https://mailarchive.ietf.org/arch/msg/spring/3=
WGuQumIfcmH281nwq3s9Un6raI<https://urldefense.com/v3/__https:/mailarchive.i=
etf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6raI__;!!NEt6yMaO-gk!QFNgjGB=
5jCPLEQSldG3epqC1f7ZMC9PWe_xRpmVN75UdO_LVdmdmsWWAjFKEpi5z$>. If you can see=
 other advantages of SRv6 over SR-MPLS, we can add that information to the =
text in my original message.

                                                                           =
         Ron




Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Thursday, January 16, 2020 1:09 PM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>; bruno.dec=
raene@orange.com<mailto:bruno.decraene@orange.com>
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Re: Introduction of draft-ietf-spring-srv6-network-programming (wa=
s Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advanta=
ges of SRv6)

Ron,

I believe we can easily close this with the following diff:

<Old>
Network programming combines segment routing
   functions, both simple and complex, to achieve a networking objective
   that goes beyond mere packet routing.
</Old>

<New>
Network programming combines segment routing functions to achieve a network=
ing objective
   using segments that can represent any instruction, topological or servic=
e based.
</New>

Thanks,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Thursday, 16 January 2020 at 16:58
To: "bruno.decraene@orange.com<mailto:bruno.decraene@orange.com>" <bruno.de=
craene@orange.com<mailto:bruno.decraene@orange.com>>, "Pablo Camarillo (pca=
maril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.com>>
Cc: "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sprin=
g@ietf.org>>
Subject: RE: Introduction of draft-ietf-spring-srv6-network-programming (wa=
s Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advanta=
ges of SRv6)

Bruno,

Would you like Pablo and me to develop text offline and bring it back to th=
e mailing list? Or would you prefer us to craft the text in a few emails on=
 the mailing list?

                                                                           =
         Ron




Juniper Business Use Only
From: bruno.decraene@orange.com<mailto:bruno.decraene@orange.com> <bruno.de=
craene@orange.com<mailto:bruno.decraene@orange.com>>
Sent: Thursday, January 16, 2020 9:00 AM
To: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.co=
m>>; Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: RE: Introduction of draft-ietf-spring-srv6-network-programming (wa=
s Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advanta=
ges of SRv6)

Pablo,

Thanks for the reply.
I'm not seen explicitly what you are proposing to address Ron's comment, re=
garding the clarification of this sentence in the draft.
May I again suggest that both of you follow up to progress on a resolution =
to clarify the meaning of this sentence in the draft?

Thanks,
Bruno


From: Pablo Camarillo (pcamaril) [mailto:pcamaril@cisco.com]
Sent: Tuesday, January 14, 2020 6:43 PM
To: rbonica@juniper.net<mailto:rbonica@juniper.net>; DECRAENE Bruno TGI/OLN
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Introduction of draft-ietf-spring-srv6-network-programming (was Re=
: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages =
of SRv6)

(Updated the subject to reflect the new topic of this thread: the introduct=
ion of this draft)

Bruno,

You are correct. In essence we are saying the same thing as the 3rd line of=
 RFC8402.
A segment can represent any instruction, topological or
   service based.

For example, for service programming we have a draft-ietf-spring-sr-service=
-programming. This goes beyond mere packet routing. NET-PGM provides the ba=
se and draft-ietf-spring-sr-service-programming builds on top of that.

Thanks,
Pablo

From: "bruno.decraene@orange.com<mailto:bruno.decraene@orange.com>" <bruno.=
decraene@orange.com<mailto:bruno.decraene@orange.com>>
Date: Tuesday, 14 January 2020 at 11:02
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>, "Pablo Ca=
marillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.com>>
Cc: "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sprin=
g@ietf.org>>
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Hello Ron, Pablo,

From: Ron Bonica [mailto:rbonica@juniper.net]
Sent: Monday, January 13, 2020 9:38 PM
To: DECRAENE Bruno TGI/OLN
Cc: spring@ietf.org<mailto:spring@ietf.org>; Pablo Camarillo (pcamaril)
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Hello Bruno.

According to the network programming draft, "Network programming combines s=
egment routing functions, both simple and complex, to achieve a networking =
objective that goes beyond mere packet routing."

Sadly, the document offers little insight as to what those non-routing obje=
ctives might be.
Ron,
Thank you for elaborating on this comment. The scope of the revised comment=
 seem to me more focused and now indeed related to this document.

Ron, Pablo,
May I suggest that you both follow up to progress on a resolution on the co=
mment on this sentence?

e.g. clarify what is meant by "beyond packet routing", and/or what is exact=
ly meant by this sentence beyond what is already stated in the SR architect=
ure (which for example, but not restricted to, states that  "A segment can =
represent any instruction, topological or service based." )
If this can't be reasonably clarified, worse case could possibly be to remo=
ve this sentence or fall back to a reference to the/a SR architecture RFC/s=
ection/sentence. As of today, I don't assume that this point would be a blo=
cking point to progress that document or to delay it for a long time.


Thank you,
--Bruno



If SRv6 offers something beyond the mere packet routing capabilities of SR-=
MPLS, the network programming draft would be the most appropriate place to =
mention it. Otherwise, SRv6 is just an IPv6 version of SR-MPLS.

                                                                   Ron




Juniper Business Use Only
From: bruno.decraene@orange.com<mailto:bruno.decraene@orange.com> <bruno.de=
craene@orange.com<mailto:bruno.decraene@orange.com>>
Sent: Monday, January 13, 2020 8:12 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: spring@ietf.org<mailto:spring@ietf.org>; Pablo Camarillo (pcamaril) <pc=
amaril@cisco.com<mailto:pcamaril@cisco.com>>
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,


From: spring [mailto:spring-bounces@ietf.org] On Behalf Of Ron Bonica
Sent: Friday, January 10, 2020 8:14 PM
To: Pablo Camarillo (pcamaril)
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Chairs,

I believe that we have two independent requests for a comparison of the ben=
efits of SRv6 over SR-MPLS in the network programming draft.

A comparison of the benefits of SRv6 over SR-MPLS is one thing that could p=
ossibly be discussed if there is interest from the WG.
E.g. to help network provider make a choice, or in the context of "beyond S=
Rv6" to help the WG identify the benefit/cost analysis of existing solution=
s and what we want to achieve with new/extensions to SR data planes.

But why do you think that this would belong to draft-ietf-spring-srv6-netwo=
rk-programming?

Thanks,
--Bruno


                                                            Ron




Juniper Business Use Only
From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> On B=
ehalf Of Pablo Camarillo (pcamaril)
Sent: Friday, January 10, 2020 11:55 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,

If you want to discuss your analysis please let's do so in a separate email=
 thread out of the context of the Working Group Last Call of draft-ietf-spr=
ing-srv6-network-programming.

As I said before: draft-ietf-spring-srv6-network-programming is a Standards=
 Track document and this topic is not about any standardization, hence out =
of scope of this document.

Same applies to other content (e.g. illustrations) that was formerly in net=
work programming and we moved to a separate draft since it was not standard=
izing anything at all and was merely informative.

Thanks,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Tuesday, 7 January 2020 at 19:17
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Pablo,

RFC 8354 reinforces my analysis in https://mailarchive.ietf.org/arch/msg/sp=
ring/3WGuQumIfcmH281nwq3s9Un6raI<https://urldefense.com/v3/__https:/mailarc=
hive.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6raI__;!!NEt6yMaO-gk!S=
olNvh35q4NS-PTVWOxXAzbTnMHltfvPWi_OSjhMYkmm_NucR6imYrrLvc35Kat6$>. Are you =
saying that you agree with this analysis?

                                             Ron






Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Tuesday, January 7, 2020 4:17 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,

SPRING has already done this work and documented the SRv6 use-cases in RFC8=
354 before progressing with the SRv6 standardization.

Further on, draft-ietf-spring-srv6-network-programming is a Standards Track=
 document.
I fail to see how a cite from RFC8354 or any other text on "SRv6 vs SR-MPLS=
" standardises anything at all.
Note that we have already removed text from draft-ietf-spring-srv6-network-=
programming (e.g. illustrations) because it was not standardising anything.

Thank you for the suggestion,
Pablo.

From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> on b=
ehalf of Ron Bonica <rbonica=3D40juniper.net@dmarc.ietf.org<mailto:rbonica=
=3D40juniper.net@dmarc.ietf.org>>
Date: Monday, 30 December 2019 at 11:08
To: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: [spring] draft-ietf-spring-srv6-network-programming: Relative adva=
ntages of SRv6

Pablo,

Would you consider adding a short section to the draft explaining the relat=
ive advantages of SRv6 over SR-MPLS? This section would explain why an netw=
ork operator would deploy SRv6 instead of SR-MPLS.

                                                                           =
              Ron



Juniper Business Use Only

Please excuse any typos, sent from my 'smart'phone.

___________________________________________________________________________=
______________________________________________



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Orange decline toute responsabilite si ce message a ete altere, deforme ou =
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This message and its attachments may contain confidential or privileged inf=
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they should not be distributed, used or copied without authorisation.

If you have received this email in error, please notify the sender and dele=
te this message and its attachments.

As emails may be altered, Orange is not liable for messages that have been =
modified, changed or falsified.

Thank you.

___________________________________________________________________________=
______________________________________________



Ce message et ses pieces jointes peuvent contenir des informations confiden=
tielles ou privilegiees et ne doivent donc

pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler

a l'expediteur et le detruire ainsi que les pieces jointes. Les messages el=
ectroniques etant susceptibles d'alteration,

Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.



This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;

they should not be distributed, used or copied without authorisation.

If you have received this email in error, please notify the sender and dele=
te this message and its attachments.

As emails may be altered, Orange is not liable for messages that have been =
modified, changed or falsified.

Thank you.

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______________________________________________



Ce message et ses pieces jointes peuvent contenir des informations confiden=
tielles ou privilegiees et ne doivent donc

pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler

a l'expediteur et le detruire ainsi que les pieces jointes. Les messages el=
ectroniques etant susceptibles d'alteration,

Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.



This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;

they should not be distributed, used or copied without authorisation.

If you have received this email in error, please notify the sender and dele=
te this message and its attachments.

As emails may be altered, Orange is not liable for messages that have been =
modified, changed or falsified.

Thank you.

--_000_BN7PR05MB393816AD3D6BFDE53B550FE3AE0C0BN7PR05MB3938namp_
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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">Pablo,<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">If there are any ad=
vantages of SRv6 over SR-MPLS, it would be a mistake to change the sentence=
 that you propose to change.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">A better approach w=
ould be to enumerate the advantages. A brief bullet list, appended to the t=
ext that I have already offered might be enough. This might also satisfy By=
ron&#8217;s request.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ron<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0in;margin=
-bottom:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b><span style=3D"font-size:11.0pt">From:</span></b>=
<span style=3D"font-size:11.0pt"> Pablo Camarillo (pcamaril) &lt;pcamaril@c=
isco.com&gt;
<br>
<b>Sent:</b> Wednesday, January 22, 2020 1:56 AM<br>
<b>To:</b> Ron Bonica &lt;rbonica@juniper.net&gt;; bruno.decraene@orange.co=
m<br>
<b>Cc:</b> spring@ietf.org<br>
<b>Subject:</b> Re: Introduction of draft-ietf-spring-srv6-network-programm=
ing (was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6)<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">Ron,</span><o:p></o=
:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">&nbsp;</span><o:p><=
/o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">Let&#8217;s remain =
focus on the one sentence that you objected to.</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">&nbsp;</span><o:p><=
/o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;color=
:black">&lt;Old&gt;</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Co=
urier New&quot;;color:black">Network programming combines segment routing</=
span><o:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Co=
urier New&quot;;color:black">&nbsp;&nbsp; functions, both simple and comple=
x, to achieve a networking objective</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Co=
urier New&quot;;color:black">&nbsp;&nbsp; that goes beyond mere packet rout=
ing.</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;color=
:black">&lt;/Old&gt;</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;color=
:black">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;color=
:black">&lt;New&gt;</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Co=
urier New&quot;;color:black">Network programming combines segment routing f=
unctions to achieve a networking objective</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Co=
urier New&quot;;color:black">&nbsp;&nbsp; using segments that can represent=
 any instruction, topological or service based.</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;color=
:black">&lt;/New&gt;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"font-variant-caps:normal;orphans:auto;text-=
align:start;widows:auto;word-spacing:0px">
<span style=3D"font-size:11.0pt">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">I have proposed a r=
esolution for this sentence by modifying that sentence in the introduction =
and aligning it with -indeed copy pasting- RFC8402. Does this address your =
comment on that particular sentence?</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">&nbsp;</span><o:p><=
/o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">Thank you,</span><o=
:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">Pablo.</span><o:p><=
/o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">&nbsp;</span><o:p><=
/o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;color:red">&nbsp;</s=
pan><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"color:#FF=
C000">Hello Bruno.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"color:#FF=
C000">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"color:#FF=
C000">According to the network programming draft, &#8220;<i>Network program=
ming combines segment routing functions, both simple and complex, to achiev=
e a networking objective that goes beyond mere
 packet routing</i>&#8221;.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"color:#FF=
C000">Sadly, the document offers little insight as to what those non-routin=
g objectives might be.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:36.6pt"><span style=3D"color:#4=
472C4">Ron,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:36.6pt"><span style=3D"color:#4=
472C4">Thank you for elaborating on this comment. The
<b><u>scope of the revised comment</u></b> seem to me more focused and now =
indeed related to this document.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:36.6pt"><span style=3D"color:#4=
472C4">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:36.6pt"><span style=3D"color:#4=
472C4">Ron, Pablo,
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:36.6pt"><span style=3D"color:#4=
472C4">May I suggest that you both follow up to progress on a resolution on=
 the
<b><u>comment on this sentence?</u></b></span><o:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">&nbsp;</span><o:p><=
/o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">&nbsp;</span><o:p><=
/o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><span style=3D"color:b=
lack">From: </span>
</b><span style=3D"color:black">Ron Bonica &lt;<a href=3D"mailto:rbonica@ju=
niper.net">rbonica@juniper.net</a>&gt;<br>
<b>Date: </b>Tuesday, 21 January 2020 at 15:43<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;<a href=3D"mailto:pca=
maril@cisco.com">pcamaril@cisco.com</a>&gt;, &quot;<a href=3D"mailto:bruno.=
decraene@orange.com">bruno.decraene@orange.com</a>&quot; &lt;<a href=3D"mai=
lto:bruno.decraene@orange.com">bruno.decraene@orange.com</a>&gt;<br>
<b>Cc: </b>&quot;<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&quo=
t; &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&gt;<br>
<b>Subject: </b>RE: Introduction of draft-ietf-spring-srv6-network-programm=
ing (was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6)</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">&nbsp;</span><o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">Pablo,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">It is difficult to see how you can add information by removing a fe=
w words.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">Let&#8217;s begin with the text in
</span><a href=3D"https://urldefense.com/v3/__https:/mailarchive.ietf.org/a=
rch/msg/spring/3WGuQumIfcmH281nwq3s9Un6raI__;!!NEt6yMaO-gk!QFNgjGB5jCPLEQSl=
dG3epqC1f7ZMC9PWe_xRpmVN75UdO_LVdmdmsWWAjFKEpi5z$">https://mailarchive.ietf=
.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6raI</a>.
 If you can see other advantages of SRv6 over SR-MPLS, we can add that info=
rmation to the text in my original message.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">&nbsp;</span><o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.=
0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><span style=3D"font-si=
ze:11.0pt">From:</span></b><span style=3D"font-size:11.0pt"> Pablo Camarill=
o (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco.com">pcamaril@cisco.com</=
a>&gt;
<br>
<b>Sent:</b> Thursday, January 16, 2020 1:09 PM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;;
<a href=3D"mailto:bruno.decraene@orange.com">bruno.decraene@orange.com</a><=
br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><br>
<b>Subject:</b> Re: Introduction of draft-ietf-spring-srv6-network-programm=
ing (was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6)</span><o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB" styl=
e=3D"font-size:11.0pt;color:black">Ron,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in;font-variant-caps:normal;o=
rphans:auto;text-align:start;widows:auto;word-spacing:0px">
<span lang=3D"EN-GB" style=3D"font-size:11.0pt;color:black">&nbsp;</span><o=
:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB" styl=
e=3D"font-size:11.0pt;color:black">I believe we can easily close this with =
the following diff:</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB" styl=
e=3D"font-size:11.0pt;color:black">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB" styl=
e=3D"font-size:11.0pt;color:black">&lt;Old&gt;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt;font-family:&quot;Courier New&quot;;color:black">Network programming=
 combines segment routing</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt;font-family:&quot;Courier New&quot;;color:black">&nbsp;&nbsp; functi=
ons, both simple and complex, to achieve a networking objective</span><o:p>=
</o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt;font-family:&quot;Courier New&quot;;color:black">&nbsp;&nbsp; that g=
oes beyond mere packet routing.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB" styl=
e=3D"font-size:11.0pt;color:black">&lt;/Old&gt;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB" styl=
e=3D"font-size:11.0pt;color:black">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB" styl=
e=3D"font-size:11.0pt;color:black">&lt;New&gt;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt;font-family:&quot;Courier New&quot;;color:black">Network programming=
 combines segment routing functions to achieve a networking objective</span=
><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt;font-family:&quot;Courier New&quot;;color:black">&nbsp;&nbsp; using =
segments that can represent any instruction, topological or service based.<=
/span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB" styl=
e=3D"font-size:11.0pt;color:black">&lt;/New&gt;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in;font-variant-caps:normal;o=
rphans:auto;text-align:start;widows:auto;word-spacing:0px">
<span lang=3D"EN-GB" style=3D"font-size:11.0pt;color:black">&nbsp;</span><o=
:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in;font-variant-caps:normal;o=
rphans:auto;text-align:start;widows:auto;word-spacing:0px">
<span lang=3D"EN-GB" style=3D"font-size:11.0pt;color:black">Thanks,</span><=
o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in;font-variant-caps:normal;o=
rphans:auto;text-align:start;widows:auto;word-spacing:0px">
<span lang=3D"EN-GB" style=3D"font-size:11.0pt;color:black">Pablo.</span><o=
:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB">&nbs=
p;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b><span style=3D"color:=
black">From:
</span></b><span style=3D"color:black">Ron Bonica &lt;</span><a href=3D"mai=
lto:rbonica@juniper.net">rbonica@juniper.net</a><span style=3D"color:black"=
>&gt;<br>
<b>Date: </b>Thursday, 16 January 2020 at 16:58<br>
<b>To: </b>&quot;</span><a href=3D"mailto:bruno.decraene@orange.com">bruno.=
decraene@orange.com</a><span style=3D"color:black">&quot; &lt;</span><a hre=
f=3D"mailto:bruno.decraene@orange.com">bruno.decraene@orange.com</a><span s=
tyle=3D"color:black">&gt;, &quot;Pablo Camarillo (pcamaril)&quot;
 &lt;</span><a href=3D"mailto:pcamaril@cisco.com">pcamaril@cisco.com</a><sp=
an style=3D"color:black">&gt;<br>
<b>Cc: </b>&quot;</span><a href=3D"mailto:spring@ietf.org">spring@ietf.org<=
/a><span style=3D"color:black">&quot; &lt;</span><a href=3D"mailto:spring@i=
etf.org">spring@ietf.org</a><span style=3D"color:black">&gt;<br>
<b>Subject: </b>RE: Introduction of draft-ietf-spring-srv6-network-programm=
ing (was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6)</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt">&nbsp;</span><o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Bruno,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Would you like Pablo and=
 me to develop text offline and bring it back to the mailing list? Or would=
 you prefer us to craft the text in a few emails on the mailing list?<o:p><=
/o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:1.0in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b>From:</b> <a href=3D"=
mailto:bruno.decraene@orange.com">
bruno.decraene@orange.com</a> &lt;<a href=3D"mailto:bruno.decraene@orange.c=
om">bruno.decraene@orange.com</a>&gt;
<br>
<b>Sent:</b> Thursday, January 16, 2020 9:00 AM<br>
<b>To:</b> Pablo Camarillo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco.=
com">pcamaril@cisco.com</a>&gt;; Ron Bonica &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><br>
<b>Subject:</b> RE: Introduction of draft-ietf-spring-srv6-network-programm=
ing (was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6)<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"FR" style=
=3D"color:#1F497D">Pablo,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"FR" style=
=3D"color:#1F497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"color:#1F=
497D">Thanks for the reply.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"color:#1F=
497D">I&#8217;m not seen explicitly what you are proposing to address Ron&#=
8217;s comment, regarding the clarification of this sentence in the draft.<=
/span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"color:#1F=
497D">May I again suggest that both of you follow up to progress on a resol=
ution to clarify the meaning of this sentence in the draft?</span><o:p></o:=
p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"color:#1F=
497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"color:#1F=
497D">Thanks,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"color:#1F=
497D">Bruno</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"color:#1F=
497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"color:#1F=
497D">&nbsp;</span><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><b><span style=3D"font=
-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">From:</span></b><sp=
an style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif"> Pa=
blo Camarillo (pcamaril) [</span><a href=3D"mailto:pcamaril@cisco.com"><spa=
n style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">mail=
to:pcamaril@cisco.com</span></a><span style=3D"font-size:10.0pt;font-family=
:&quot;Tahoma&quot;,sans-serif">]
<br>
<b>Sent:</b> Tuesday, January 14, 2020 6:43 PM<br>
<b>To:</b> </span><a href=3D"mailto:rbonica@juniper.net"><span style=3D"fon=
t-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">rbonica@juniper.ne=
t</span></a><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,=
sans-serif">; DECRAENE Bruno TGI/OLN<br>
<b>Cc:</b> </span><a href=3D"mailto:spring@ietf.org"><span style=3D"font-si=
ze:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">spring@ietf.org</span>=
</a><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-ser=
if"><br>
<b>Subject:</b> Introduction of draft-ietf-spring-srv6-network-programming =
(was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative adva=
ntages of SRv6)</span><o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span lang=3D"EN-GB">(=
Updated the subject to reflect the new topic of this thread: the introducti=
on of this draft)</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span lang=3D"EN-GB">&=
nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span lang=3D"EN-GB">B=
runo,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span lang=3D"EN-GB">&=
nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span lang=3D"EN-GB">Y=
ou are correct. In essence we are saying the same thing as the 3<sup>rd</su=
p> line of RFC8402.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span style=3D"font-si=
ze:10.0pt;font-family:&quot;Courier New&quot;;color:black">A segment can re=
present any instruction, topological or</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span style=3D"font-si=
ze:10.0pt;font-family:&quot;Courier New&quot;;color:black">&nbsp;&nbsp; ser=
vice based.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span lang=3D"EN-GB">&=
nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span lang=3D"EN-GB">F=
or example, for service programming we have a draft-ietf-spring-sr-service-=
programming. This goes beyond mere packet routing. NET-PGM provides the bas=
e and draft-ietf-spring-sr-service-programming
 builds on top of that.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span lang=3D"EN-GB">&=
nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span lang=3D"EN-GB">T=
hanks,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span lang=3D"EN-GB">P=
ablo</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:107.4pt"><span lang=3D"EN-GB">&=
nbsp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><b><span style=3D"colo=
r:black">From:
</span></b><span style=3D"color:black">&quot;</span><a href=3D"mailto:bruno=
.decraene@orange.com">bruno.decraene@orange.com</a><span style=3D"color:bla=
ck">&quot; &lt;</span><a href=3D"mailto:bruno.decraene@orange.com">bruno.de=
craene@orange.com</a><span style=3D"color:black">&gt;<br>
<b>Date: </b>Tuesday, 14 January 2020 at 11:02<br>
<b>To: </b>Ron Bonica &lt;</span><a href=3D"mailto:rbonica@juniper.net">rbo=
nica@juniper.net</a><span style=3D"color:black">&gt;, &quot;Pablo Camarillo=
 (pcamaril)&quot; &lt;</span><a href=3D"mailto:pcamaril@cisco.com">pcamaril=
@cisco.com</a><span style=3D"color:black">&gt;<br>
<b>Cc: </b>&quot;</span><a href=3D"mailto:spring@ietf.org">spring@ietf.org<=
/a><span style=3D"color:black">&quot; &lt;</span><a href=3D"mailto:spring@i=
etf.org">spring@ietf.org</a><span style=3D"color:black">&gt;<br>
<b>Subject: </b>RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span style=3D"color:#=
1F497D">Hello Ron, Pablo,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span style=3D"color:#=
1F497D">&nbsp;</span><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"font-s=
ize:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">From:</span></b><span=
 style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif"> Ron =
Bonica [</span><a href=3D"mailto:rbonica@juniper.net"><span style=3D"font-s=
ize:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">mailto:rbonica@junipe=
r.net</span></a><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&qu=
ot;,sans-serif">]
<br>
<b>Sent:</b> Monday, January 13, 2020 9:38 PM<br>
<b>To:</b> DECRAENE Bruno TGI/OLN<br>
<b>Cc:</b> </span><a href=3D"mailto:spring@ietf.org"><span style=3D"font-si=
ze:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">spring@ietf.org</span>=
</a><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-ser=
if">; Pablo Camarillo (pcamaril)<br>
<b>Subject:</b> RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6</span><o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Hello Bruno.<o:p></o:p><=
/p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">According to the network=
 programming draft, &#8220;Network programming combines segment routing fun=
ctions, both simple and complex, to achieve a networking objective that goe=
s beyond mere packet routing.&#8221;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Sadly, the document offe=
rs little insight as to what those non-routing objectives might be.<o:p></o=
:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span style=3D"color:#=
1F497D">Ron,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span style=3D"color:#=
1F497D">Thank you for elaborating on this comment. The scope of the revised=
 comment seem to me more focused and now indeed related to this document.</=
span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span style=3D"color:#=
1F497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span style=3D"color:#=
1F497D">Ron, Pablo,
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span style=3D"color:#=
1F497D">May I suggest that you both follow up to progress on a resolution o=
n the comment on this sentence?</span><o:p></o:p></p>
<pre style=3D"margin-left:143.4pt"><span style=3D"color:#1F497D">e.g. clari=
fy what is meant by &#8220;beyond packet routing&#8221;, and/or what is exa=
ctly meant by this sentence beyond what is already stated in the SR archite=
cture (which for example, but not restricted to, states that</span><span st=
yle=3D"font-size:10.0pt;color:#1F497D">&nbsp; &#8220;</span><span style=3D"=
font-size:10.0pt;font-family:&quot;Courier New&quot;">A segment can represe=
nt any instruction, topological or service based.&#8221;</span><span style=
=3D"font-size:10.0pt;color:#1F497D"> )</span><o:p></o:p></pre>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span style=3D"color:#=
1F497D">If this can&#8217;t be reasonably clarified, worse case could possi=
bly be to remove this sentence or fall back to a reference to the/a SR arch=
itecture RFC/section/sentence. As of today,
 I don&#8217;t assume that this point would be a blocking point to progress=
 that document or to delay it for a long time.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span style=3D"color:#=
1F497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span style=3D"color:#=
1F497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span style=3D"color:#=
1F497D">Thank you,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span style=3D"color:#=
1F497D">--Bruno</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span style=3D"color:#=
1F497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span style=3D"color:#=
1F497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">If SRv6 offers something=
 beyond the mere packet routing capabilities of SR-MPLS, the network progra=
mming draft would be the most appropriate place to mention it. Otherwise, S=
Rv6 is just an IPv6 version of SR-MPLS.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ro=
n<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:2.0in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b>From:</b> <a href=3D"=
mailto:bruno.decraene@orange.com">
bruno.decraene@orange.com</a> &lt;<a href=3D"mailto:bruno.decraene@orange.c=
om">bruno.decraene@orange.com</a>&gt;
<br>
<b>Sent:</b> Monday, January 13, 2020 8:12 AM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;<br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>; Pablo Ca=
marillo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco.com">pcamaril@cisco=
.com</a>&gt;<br>
<b>Subject:</b> RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">Ron,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">&nbsp;</span><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"font-s=
ize:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">From:</span></b><span=
 style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif"> spri=
ng [</span><a href=3D"mailto:spring-bounces@ietf.org"><span style=3D"font-s=
ize:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">mailto:spring-bounces=
@ietf.org</span></a><span style=3D"font-size:10.0pt;font-family:&quot;Tahom=
a&quot;,sans-serif">]
<b>On Behalf Of </b>Ron Bonica<br>
<b>Sent:</b> Friday, January 10, 2020 8:14 PM<br>
<b>To:</b> Pablo Camarillo (pcamaril)<br>
<b>Cc:</b> </span><a href=3D"mailto:spring@ietf.org"><span style=3D"font-si=
ze:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">spring@ietf.org</span>=
</a><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-ser=
if"><br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6</span><o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Chairs,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">I believe that we have t=
wo independent requests for a comparison of the benefits of SRv6 over SR-MP=
LS in the network programming draft.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">A comparison of the benefits of SRv6 over SR-MPLS is one thing that c=
ould possibly be discussed if there is interest from the WG.</span><o:p></o=
:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">E.g. to help network provider make a choice, or in the context of &#8=
220;beyond SRv6&#8221; to help the WG identify the benefit/cost analysis of=
 existing solutions and what we want to achieve with
 new/extensions to SR data planes. </span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">But why do you think that this would belong to draft-ietf-spring-srv6=
-network-programming?
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">Thanks,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">--Bruno</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:2.0in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b>From:</b> spring &lt;=
<a href=3D"mailto:spring-bounces@ietf.org">spring-bounces@ietf.org</a>&gt;
<b>On Behalf Of </b>Pablo Camarillo (pcamaril)<br>
<b>Sent:</b> Friday, January 10, 2020 11:55 AM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;<br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Ron=
, </span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">If you want to discuss y=
our analysis please let&#8217;s do so in a separate email thread out of the=
 context of the Working Group Last Call of draft-ietf-spring-srv6-network-p=
rogramming.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">As I said before: <span =
lang=3D"EN-GB">
draft-ietf-spring-srv6-network-programming is a Standards Track document an=
d this topic is not about any standardization, hence out of scope of this d=
ocument.
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Sam=
e applies to other content (e.g. illustrations) that was formerly in networ=
k programming and we moved to a separate draft since it was not standardizi=
ng anything at all and was merely informative.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Tha=
nks,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Pab=
lo.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB" sty=
le=3D"font-size:24.0pt">&nbsp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"color:=
black">From:
</span></b><span style=3D"color:black">Ron Bonica &lt;</span><a href=3D"mai=
lto:rbonica@juniper.net">rbonica@juniper.net</a><span style=3D"color:black"=
>&gt;<br>
<b>Date: </b>Tuesday, 7 January 2020 at 19:17<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><a href=3D"mai=
lto:pcamaril@cisco.com">pcamaril@cisco.com</a><span style=3D"color:black">&=
gt;<br>
<b>Cc: </b>SPRING WG &lt;</span><a href=3D"mailto:spring@ietf.org">spring@i=
etf.org</a><span style=3D"color:black">&gt;<br>
<b>Subject: </b>RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">RFC 8354 reinforces my a=
nalysis in
<a href=3D"https://urldefense.com/v3/__https:/mailarchive.ietf.org/arch/msg=
/spring/3WGuQumIfcmH281nwq3s9Un6raI__;!!NEt6yMaO-gk!SolNvh35q4NS-PTVWOxXAzb=
TnMHltfvPWi_OSjhMYkmm_NucR6imYrrLvc35Kat6$">
https://mailarchive.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6raI</a=
>. Are you saying that you agree with this analysis?<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:2.0in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b>From:</b> Pablo Camar=
illo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco.com">pcamaril@cisco.co=
m</a>&gt;
<br>
<b>Sent:</b> Tuesday, January 7, 2020 4:17 AM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;<br>
<b>Cc:</b> SPRING WG &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org=
</a>&gt;<br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Ron=
,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">SPR=
ING has already done this work and documented the SRv6 use-cases in RFC8354=
 before progressing with the SRv6 standardization.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Fur=
ther on, draft-ietf-spring-srv6-network-programming is a Standards Track do=
cument.
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">I f=
ail to see how a cite from RFC8354 or any other text on &#8220;SRv6 vs SR-M=
PLS&#8221; standardises anything at all.
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Not=
e that we have already removed text from draft-ietf-spring-srv6-network-pro=
gramming (e.g. illustrations) because it was not standardising anything.</s=
pan><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Tha=
nk you for the suggestion,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Pab=
lo.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"color:=
black">From:
</span></b><span style=3D"color:black">spring &lt;</span><a href=3D"mailto:=
spring-bounces@ietf.org">spring-bounces@ietf.org</a><span style=3D"color:bl=
ack">&gt; on behalf of Ron Bonica &lt;</span><a href=3D"mailto:rbonica=3D40=
juniper.net@dmarc.ietf.org">rbonica=3D40juniper.net@dmarc.ietf.org</a><span=
 style=3D"color:black">&gt;<br>
<b>Date: </b>Monday, 30 December 2019 at 11:08<br>
<b>To: </b>SPRING WG &lt;</span><a href=3D"mailto:spring@ietf.org">spring@i=
etf.org</a><span style=3D"color:black">&gt;<br>
<b>Subject: </b>[spring] draft-ietf-spring-srv6-network-programming: Relati=
ve advantages of SRv6</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Would you consider addin=
g a short section to the draft explaining the relative advantages of SRv6 o=
ver SR-MPLS? This section would explain why an network operator would deplo=
y SRv6 instead of SR-MPLS.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp; &nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"text-align:center=
"><span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</sp=
an><o:p></o:p></p>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
</div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">Please excuse any t=
ypos, sent from my 'smart'phone.<o:p></o:p></span></p>
<pre style=3D"margin-left:2.0in"><span style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;">________________________________________________=
_________________________________________________________________________</=
span><o:p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;">&nbsp;</span><o:p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;">Ce message et ses pieces jointes peuvent conteni=
r des informations confidentielles ou privilegiees et ne doivent donc</span=
><o:p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span lang=3D"ES" style=3D"font-size:10.0p=
t;font-family:&quot;Courier New&quot;">pas etre diffuses, exploites ou copi=
es sans autorisation. Si vous avez recu ce message par erreur, veuillez le =
signaler</span><o:p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span lang=3D"ES" style=3D"font-size:10.0p=
t;font-family:&quot;Courier New&quot;">a l'expediteur et le detruire ainsi =
que les pieces jointes. Les messages electroniques etant susceptibles d'alt=
eration,</span><o:p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span lang=3D"ES" style=3D"font-size:10.0p=
t;font-family:&quot;Courier New&quot;">Orange decline toute responsabilite =
si ce message a ete altere, deforme ou falsifie. Merci.</span><o:p></o:p></=
pre>
<pre style=3D"margin-left:2.0in"><span lang=3D"ES" style=3D"font-size:10.0p=
t;font-family:&quot;Courier New&quot;">&nbsp;</span><o:p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;">This message and its attachments may contain con=
fidential or privileged information that may be protected by law;</span><o:=
p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;">they should not be distributed, used or copied w=
ithout authorisation.</span><o:p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;">If you have received this email in error, please=
 notify the sender and delete this message and its attachments.</span><o:p>=
</o:p></pre>
<pre style=3D"margin-left:2.0in"><span style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;">As emails may be altered, Orange is not liable f=
or messages that have been modified, changed or falsified.</span><o:p></o:p=
></pre>
<pre style=3D"margin-left:2.0in"><span style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;">Thank you.</span><o:p></o:p></pre>
<pre style=3D"margin-left:143.4pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">______________________________________________=
___________________________________________________________________________=
</span><o:p></o:p></pre>
<pre style=3D"margin-left:143.4pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">&nbsp;</span><o:p></o:p></pre>
<pre style=3D"margin-left:143.4pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">Ce message et ses pieces jointes peuvent conte=
nir des informations confidentielles ou privilegiees et ne doivent donc</sp=
an><o:p></o:p></pre>
<pre style=3D"margin-left:143.4pt"><span lang=3D"ES" style=3D"font-size:10.=
0pt;font-family:&quot;Courier New&quot;">pas etre diffuses, exploites ou co=
pies sans autorisation. Si vous avez recu ce message par erreur, veuillez l=
e signaler</span><o:p></o:p></pre>
<pre style=3D"margin-left:143.4pt"><span lang=3D"ES" style=3D"font-size:10.=
0pt;font-family:&quot;Courier New&quot;">a l'expediteur et le detruire ains=
i que les pieces jointes. Les messages electroniques etant susceptibles d'a=
lteration,</span><o:p></o:p></pre>
<pre style=3D"margin-left:143.4pt"><span lang=3D"ES" style=3D"font-size:10.=
0pt;font-family:&quot;Courier New&quot;">Orange decline toute responsabilit=
e si ce message a ete altere, deforme ou falsifie. Merci.</span><o:p></o:p>=
</pre>
<pre style=3D"margin-left:143.4pt"><span lang=3D"ES" style=3D"font-size:10.=
0pt;font-family:&quot;Courier New&quot;">&nbsp;</span><o:p></o:p></pre>
<pre style=3D"margin-left:143.4pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">This message and its attachments may contain c=
onfidential or privileged information that may be protected by law;</span><=
o:p></o:p></pre>
<pre style=3D"margin-left:143.4pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">they should not be distributed, used or copied=
 without authorisation.</span><o:p></o:p></pre>
<pre style=3D"margin-left:143.4pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">If you have received this email in error, plea=
se notify the sender and delete this message and its attachments.</span><o:=
p></o:p></pre>
<pre style=3D"margin-left:143.4pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">As emails may be altered, Orange is not liable=
 for messages that have been modified, changed or falsified.</span><o:p></o=
:p></pre>
<pre style=3D"margin-left:143.4pt"><span style=3D"font-size:10.0pt;font-fam=
ily:&quot;Courier New&quot;">Thank you.</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.0in"><span lang=3D"FR">________________________=
___________________________________________________________________________=
______________________</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.0in"><span lang=3D"FR">&nbsp;</span><o:p></o:p>=
</pre>
<pre style=3D"margin-left:1.0in"><span lang=3D"FR">Ce message et ses pieces=
 jointes peuvent contenir des informations confidentielles ou privilegiees =
et ne doivent donc</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.0in"><span lang=3D"FR">pas etre diffuses, explo=
ites ou copies sans autorisation. Si vous avez recu ce message par erreur, =
veuillez le signaler</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.0in"><span lang=3D"FR">a l'expediteur et le det=
ruire ainsi que les pieces jointes. Les messages electroniques etant suscep=
tibles d'alteration,</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.0in"><span lang=3D"FR">Orange decline toute res=
ponsabilite si ce message a ete altere, deforme ou falsifie. Merci.</span><=
o:p></o:p></pre>
<pre style=3D"margin-left:1.0in"><span lang=3D"FR">&nbsp;</span><o:p></o:p>=
</pre>
<pre style=3D"margin-left:1.0in"><span lang=3D"FR">This message and its att=
achments may contain confidential or privileged information that may be pro=
tected by law;</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.0in"><span lang=3D"FR">they should not be distr=
ibuted, used or copied without authorisation.</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.0in"><span lang=3D"FR">If you have received thi=
s email in error, please notify the sender and delete this message and its =
attachments.</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.0in"><span lang=3D"FR">As emails may be altered=
, Orange is not liable for messages that have been modified, changed or fal=
sified.</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.0in"><span lang=3D"FR">Thank you.</span><o:p></=
o:p></pre>
</div>
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From: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
To: Ron Bonica <rbonica@juniper.net>, "bruno.decraene@orange.com" <bruno.decraene@orange.com>, "Hoskins, B. J. [CTO]" <Byron.Hoskins@sprint.com>
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Thread-Topic: Introduction of draft-ietf-spring-srv6-network-programming (was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6)
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From: Ron Bonica <rbonica@juniper.net>
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>, "bruno.decraene@orange.com" <bruno.decraene@orange.com>, "EXT - Byron.Hoskins@sprint.com" <Byron.Hoskins@sprint.com>, Gyan Mishra <hayabusagsm@gmail.com>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/Ou9r8rwM0JwmFjlY15vuMJzuXgw>
Subject: Re: [spring] Introduction of draft-ietf-spring-srv6-network-programming (was Re: draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6)
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Pablo,

So where should the advantages of SRv6 over SR-MPLS be documented?

Maybe someone in the WG will offer to start a new document?

                                  Ron



Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com>
Sent: Thursday, January 23, 2020 7:15 AM
To: Ron Bonica <rbonica@juniper.net>; bruno.decraene@orange.com; EXT - Byro=
n.Hoskins@sprint.com <Byron.Hoskins@sprint.com>
Cc: spring@ietf.org
Subject: Re: Introduction of draft-ietf-spring-srv6-network-programming (wa=
s Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advanta=
ges of SRv6)

Ron,

Comparison between SRv6 and SR-MPLS is outside the scope of this document. =
IMHO it would be a misguided attempt to try capturing this in a mere bullet=
 list.

This WGLC is for a Standards Track document that focuses on technical aspec=
ts requiring standardization for interoperable implementations and deployme=
nts.

The chair has asked us to clarify what is meant in that sentence by "beyond=
 mere packet routing". Hence the proposed text to specifically address the =
comment on this particular sentence.

Thank you,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Wednesday, 22 January 2020 at 17:09
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>, "bruno.decraene@orange.com<mailto:bruno.decraene@orange.com>" <bruno=
.decraene@orange.com<mailto:bruno.decraene@orange.com>>, "EXT - Byron.Hoski=
ns@sprint.com<mailto:Byron.Hoskins@sprint.com>" <Byron.Hoskins@sprint.com<m=
ailto:Byron.Hoskins@sprint.com>>
Cc: "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sprin=
g@ietf.org>>
Subject: RE: Introduction of draft-ietf-spring-srv6-network-programming (wa=
s Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advanta=
ges of SRv6)

Pablo,

If there are any advantages of SRv6 over SR-MPLS, it would be a mistake to =
change the sentence that you propose to change.

A better approach would be to enumerate the advantages. A brief bullet list=
, appended to the text that I have already offered might be enough. This mi=
ght also satisfy Byron's request.

                                                   Ron



Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Wednesday, January 22, 2020 1:56 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>; bruno.dec=
raene@orange.com<mailto:bruno.decraene@orange.com>
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Re: Introduction of draft-ietf-spring-srv6-network-programming (wa=
s Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advanta=
ges of SRv6)

Ron,

Let's remain focus on the one sentence that you objected to.

<Old>
Network programming combines segment routing
   functions, both simple and complex, to achieve a networking objective
   that goes beyond mere packet routing.
</Old>

<New>
Network programming combines segment routing functions to achieve a network=
ing objective
   using segments that can represent any instruction, topological or servic=
e based.
</New>

I have proposed a resolution for this sentence by modifying that sentence i=
n the introduction and aligning it with -indeed copy pasting- RFC8402. Does=
 this address your comment on that particular sentence?

Thank you,
Pablo.


Hello Bruno.

According to the network programming draft, "Network programming combines s=
egment routing functions, both simple and complex, to achieve a networking =
objective that goes beyond mere packet routing".
Sadly, the document offers little insight as to what those non-routing obje=
ctives might be.
Ron,
Thank you for elaborating on this comment. The scope of the revised comment=
 seem to me more focused and now indeed related to this document.

Ron, Pablo,
May I suggest that you both follow up to progress on a resolution on the co=
mment on this sentence?


From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Tuesday, 21 January 2020 at 15:43
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>, "bruno.decraene@orange.com<mailto:bruno.decraene@orange.com>" <bruno=
.decraene@orange.com<mailto:bruno.decraene@orange.com>>
Cc: "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sprin=
g@ietf.org>>
Subject: RE: Introduction of draft-ietf-spring-srv6-network-programming (wa=
s Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advanta=
ges of SRv6)

Pablo,

It is difficult to see how you can add information by removing a few words.

Let's begin with the text in https://mailarchive.ietf.org/arch/msg/spring/3=
WGuQumIfcmH281nwq3s9Un6raI<https://urldefense.com/v3/__https:/mailarchive.i=
etf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6raI__;!!NEt6yMaO-gk!QFNgjGB=
5jCPLEQSldG3epqC1f7ZMC9PWe_xRpmVN75UdO_LVdmdmsWWAjFKEpi5z$>. If you can see=
 other advantages of SRv6 over SR-MPLS, we can add that information to the =
text in my original message.

                                                                           =
         Ron




Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Thursday, January 16, 2020 1:09 PM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>; bruno.dec=
raene@orange.com<mailto:bruno.decraene@orange.com>
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Re: Introduction of draft-ietf-spring-srv6-network-programming (wa=
s Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advanta=
ges of SRv6)

Ron,

I believe we can easily close this with the following diff:

<Old>
Network programming combines segment routing
   functions, both simple and complex, to achieve a networking objective
   that goes beyond mere packet routing.
</Old>

<New>
Network programming combines segment routing functions to achieve a network=
ing objective
   using segments that can represent any instruction, topological or servic=
e based.
</New>

Thanks,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Thursday, 16 January 2020 at 16:58
To: "bruno.decraene@orange.com<mailto:bruno.decraene@orange.com>" <bruno.de=
craene@orange.com<mailto:bruno.decraene@orange.com>>, "Pablo Camarillo (pca=
maril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.com>>
Cc: "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sprin=
g@ietf.org>>
Subject: RE: Introduction of draft-ietf-spring-srv6-network-programming (wa=
s Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advanta=
ges of SRv6)

Bruno,

Would you like Pablo and me to develop text offline and bring it back to th=
e mailing list? Or would you prefer us to craft the text in a few emails on=
 the mailing list?

                                                                           =
         Ron




Juniper Business Use Only
From: bruno.decraene@orange.com<mailto:bruno.decraene@orange.com> <bruno.de=
craene@orange.com<mailto:bruno.decraene@orange.com>>
Sent: Thursday, January 16, 2020 9:00 AM
To: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.co=
m>>; Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: RE: Introduction of draft-ietf-spring-srv6-network-programming (wa=
s Re: [spring] draft-ietf-spring-srv6-network-programming: Relative advanta=
ges of SRv6)

Pablo,

Thanks for the reply.
I'm not seen explicitly what you are proposing to address Ron's comment, re=
garding the clarification of this sentence in the draft.
May I again suggest that both of you follow up to progress on a resolution =
to clarify the meaning of this sentence in the draft?

Thanks,
Bruno


From: Pablo Camarillo (pcamaril) [mailto:pcamaril@cisco.com]
Sent: Tuesday, January 14, 2020 6:43 PM
To: rbonica@juniper.net<mailto:rbonica@juniper.net>; DECRAENE Bruno TGI/OLN
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Introduction of draft-ietf-spring-srv6-network-programming (was Re=
: [spring] draft-ietf-spring-srv6-network-programming: Relative advantages =
of SRv6)

(Updated the subject to reflect the new topic of this thread: the introduct=
ion of this draft)

Bruno,

You are correct. In essence we are saying the same thing as the 3rd line of=
 RFC8402.
A segment can represent any instruction, topological or
   service based.

For example, for service programming we have a draft-ietf-spring-sr-service=
-programming. This goes beyond mere packet routing. NET-PGM provides the ba=
se and draft-ietf-spring-sr-service-programming builds on top of that.

Thanks,
Pablo

From: "bruno.decraene@orange.com<mailto:bruno.decraene@orange.com>" <bruno.=
decraene@orange.com<mailto:bruno.decraene@orange.com>>
Date: Tuesday, 14 January 2020 at 11:02
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>, "Pablo Ca=
marillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.com>>
Cc: "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sprin=
g@ietf.org>>
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Hello Ron, Pablo,

From: Ron Bonica [mailto:rbonica@juniper.net]
Sent: Monday, January 13, 2020 9:38 PM
To: DECRAENE Bruno TGI/OLN
Cc: spring@ietf.org<mailto:spring@ietf.org>; Pablo Camarillo (pcamaril)
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Hello Bruno.

According to the network programming draft, "Network programming combines s=
egment routing functions, both simple and complex, to achieve a networking =
objective that goes beyond mere packet routing."

Sadly, the document offers little insight as to what those non-routing obje=
ctives might be.
Ron,
Thank you for elaborating on this comment. The scope of the revised comment=
 seem to me more focused and now indeed related to this document.

Ron, Pablo,
May I suggest that you both follow up to progress on a resolution on the co=
mment on this sentence?

e.g. clarify what is meant by "beyond packet routing", and/or what is exact=
ly meant by this sentence beyond what is already stated in the SR architect=
ure (which for example, but not restricted to, states that  "A segment can =
represent any instruction, topological or service based." )
If this can't be reasonably clarified, worse case could possibly be to remo=
ve this sentence or fall back to a reference to the/a SR architecture RFC/s=
ection/sentence. As of today, I don't assume that this point would be a blo=
cking point to progress that document or to delay it for a long time.


Thank you,
--Bruno



If SRv6 offers something beyond the mere packet routing capabilities of SR-=
MPLS, the network programming draft would be the most appropriate place to =
mention it. Otherwise, SRv6 is just an IPv6 version of SR-MPLS.

                                                                   Ron




Juniper Business Use Only
From: bruno.decraene@orange.com<mailto:bruno.decraene@orange.com> <bruno.de=
craene@orange.com<mailto:bruno.decraene@orange.com>>
Sent: Monday, January 13, 2020 8:12 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: spring@ietf.org<mailto:spring@ietf.org>; Pablo Camarillo (pcamaril) <pc=
amaril@cisco.com<mailto:pcamaril@cisco.com>>
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,


From: spring [mailto:spring-bounces@ietf.org] On Behalf Of Ron Bonica
Sent: Friday, January 10, 2020 8:14 PM
To: Pablo Camarillo (pcamaril)
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Chairs,

I believe that we have two independent requests for a comparison of the ben=
efits of SRv6 over SR-MPLS in the network programming draft.

A comparison of the benefits of SRv6 over SR-MPLS is one thing that could p=
ossibly be discussed if there is interest from the WG.
E.g. to help network provider make a choice, or in the context of "beyond S=
Rv6" to help the WG identify the benefit/cost analysis of existing solution=
s and what we want to achieve with new/extensions to SR data planes.

But why do you think that this would belong to draft-ietf-spring-srv6-netwo=
rk-programming?

Thanks,
--Bruno


                                                            Ron




Juniper Business Use Only
From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> On B=
ehalf Of Pablo Camarillo (pcamaril)
Sent: Friday, January 10, 2020 11:55 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,

If you want to discuss your analysis please let's do so in a separate email=
 thread out of the context of the Working Group Last Call of draft-ietf-spr=
ing-srv6-network-programming.

As I said before: draft-ietf-spring-srv6-network-programming is a Standards=
 Track document and this topic is not about any standardization, hence out =
of scope of this document.

Same applies to other content (e.g. illustrations) that was formerly in net=
work programming and we moved to a separate draft since it was not standard=
izing anything at all and was merely informative.

Thanks,
Pablo.

From: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Date: Tuesday, 7 January 2020 at 19:17
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: RE: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Pablo,

RFC 8354 reinforces my analysis in https://mailarchive.ietf.org/arch/msg/sp=
ring/3WGuQumIfcmH281nwq3s9Un6raI<https://urldefense.com/v3/__https:/mailarc=
hive.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6raI__;!!NEt6yMaO-gk!S=
olNvh35q4NS-PTVWOxXAzbTnMHltfvPWi_OSjhMYkmm_NucR6imYrrLvc35Kat6$>. Are you =
saying that you agree with this analysis?

                                             Ron






Juniper Business Use Only
From: Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Sent: Tuesday, January 7, 2020 4:17 AM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6

Ron,

SPRING has already done this work and documented the SRv6 use-cases in RFC8=
354 before progressing with the SRv6 standardization.

Further on, draft-ietf-spring-srv6-network-programming is a Standards Track=
 document.
I fail to see how a cite from RFC8354 or any other text on "SRv6 vs SR-MPLS=
" standardises anything at all.
Note that we have already removed text from draft-ietf-spring-srv6-network-=
programming (e.g. illustrations) because it was not standardising anything.

Thank you for the suggestion,
Pablo.

From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> on b=
ehalf of Ron Bonica <rbonica=3D40juniper.net@dmarc.ietf.org<mailto:rbonica=
=3D40juniper.net@dmarc.ietf.org>>
Date: Monday, 30 December 2019 at 11:08
To: SPRING WG <spring@ietf.org<mailto:spring@ietf.org>>
Subject: [spring] draft-ietf-spring-srv6-network-programming: Relative adva=
ntages of SRv6

Pablo,

Would you consider adding a short section to the draft explaining the relat=
ive advantages of SRv6 over SR-MPLS? This section would explain why an netw=
ork operator would deploy SRv6 instead of SR-MPLS.

                                                                           =
              Ron



Juniper Business Use Only

Please excuse any typos, sent from my 'smart'phone.

___________________________________________________________________________=
______________________________________________



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ectroniques etant susceptibles d'alteration,

Orange decline toute responsabilite si ce message a ete altere, deforme ou =
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This message and its attachments may contain confidential or privileged inf=
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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">Pablo,<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">So where should the=
 advantages of SRv6 over SR-MPLS be documented?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">Maybe someone in th=
e WG will offer to start a new document?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0in;margin=
-bottom:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b><span style=3D"font-size:11.0pt">From:</span></b>=
<span style=3D"font-size:11.0pt"> Pablo Camarillo (pcamaril) &lt;pcamaril@c=
isco.com&gt;
<br>
<b>Sent:</b> Thursday, January 23, 2020 7:15 AM<br>
<b>To:</b> Ron Bonica &lt;rbonica@juniper.net&gt;; bruno.decraene@orange.co=
m; EXT - Byron.Hoskins@sprint.com &lt;Byron.Hoskins@sprint.com&gt;<br>
<b>Cc:</b> spring@ietf.org<br>
<b>Subject:</b> Re: Introduction of draft-ietf-spring-srv6-network-programm=
ing (was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6)<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">Ron,<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">Comparison between =
SRv6 and SR-MPLS is outside the scope of this document. IMHO it would be a =
misguided attempt to try capturing this in a mere bullet list.<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">This WGLC is for a =
Standards Track document that focuses on technical aspects requiring standa=
rdization for interoperable implementations and deployments.<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">The chair has asked=
 us to clarify what is meant in that sentence by &#8220;beyond mere packet =
routing&#8221;. Hence the proposed text to specifically address the comment=
 on this particular sentence.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">Thank you,<o:p></o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">Pablo.<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><span style=3D"color:b=
lack">From: </span>
</b><span style=3D"color:black">Ron Bonica &lt;<a href=3D"mailto:rbonica@ju=
niper.net">rbonica@juniper.net</a>&gt;<br>
<b>Date: </b>Wednesday, 22 January 2020 at 17:09<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;<a href=3D"mailto:pca=
maril@cisco.com">pcamaril@cisco.com</a>&gt;, &quot;<a href=3D"mailto:bruno.=
decraene@orange.com">bruno.decraene@orange.com</a>&quot; &lt;<a href=3D"mai=
lto:bruno.decraene@orange.com">bruno.decraene@orange.com</a>&gt;, &quot;EXT
 - <a href=3D"mailto:Byron.Hoskins@sprint.com">Byron.Hoskins@sprint.com</a>=
&quot; &lt;<a href=3D"mailto:Byron.Hoskins@sprint.com">Byron.Hoskins@sprint=
.com</a>&gt;<br>
<b>Cc: </b>&quot;<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&quo=
t; &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&gt;<br>
<b>Subject: </b>RE: Introduction of draft-ietf-spring-srv6-network-programm=
ing (was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6)<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt"><o:p>&nbsp;</o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">Pablo,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">If there are any advantages of SRv6 over SR-MPLS, it would be a mis=
take to change the sentence that you propose to change.</span><o:p></o:p></=
p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">A better approach would be to enumerate the advantages. A brief bul=
let list, appended to the text that I have already offered might be enough.=
 This might also satisfy Byron&#8217;s request.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;Ron</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">&nbsp;</span><o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.00=
01pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><span style=3D"font-si=
ze:11.0pt">From:</span></b><span style=3D"font-size:11.0pt"> Pablo Camarill=
o (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco.com">pcamaril@cisco.com</=
a>&gt;
<br>
<b>Sent:</b> Wednesday, January 22, 2020 1:56 AM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;;
<a href=3D"mailto:bruno.decraene@orange.com">bruno.decraene@orange.com</a><=
br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><br>
<b>Subject:</b> Re: Introduction of draft-ietf-spring-srv6-network-programm=
ing (was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6)</span><o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">Ron,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">Let&#8217;s remain focus on the one sentence that you objected to.<=
/span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB" styl=
e=3D"font-size:11.0pt;color:black">&lt;Old&gt;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt;font-family:&quot;Courier New&quot;;color:black">Network programming=
 combines segment routing</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt;font-family:&quot;Courier New&quot;;color:black">&nbsp;&nbsp; functi=
ons, both simple and complex, to achieve a networking objective</span><o:p>=
</o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt;font-family:&quot;Courier New&quot;;color:black">&nbsp;&nbsp; that g=
oes beyond mere packet routing.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB" styl=
e=3D"font-size:11.0pt;color:black">&lt;/Old&gt;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB" styl=
e=3D"font-size:11.0pt;color:black">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB" styl=
e=3D"font-size:11.0pt;color:black">&lt;New&gt;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt;font-family:&quot;Courier New&quot;;color:black">Network programming=
 combines segment routing functions to achieve a networking objective</span=
><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt;font-family:&quot;Courier New&quot;;color:black">&nbsp;&nbsp; using =
segments that can represent any instruction, topological or service based.<=
/span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span lang=3D"EN-GB" styl=
e=3D"font-size:11.0pt;color:black">&lt;/New&gt;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in;font-variant-caps:normal;o=
rphans:auto;text-align:start;widows:auto;word-spacing:0px">
<span style=3D"font-size:11.0pt">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">I have proposed a resolution for this sentence by modifying that se=
ntence in the introduction and aligning it with -indeed copy pasting- RFC84=
02. Does this address your comment on
 that particular sentence?</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">Thank you,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">Pablo.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt;color:red">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#FF=
C000">Hello Bruno.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#FF=
C000">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#FF=
C000">According to the network programming draft, &#8220;<i>Network program=
ming combines segment routing functions, both simple and complex, to achiev=
e a networking objective that goes beyond mere
 packet routing</i>&#8221;.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#FF=
C000">Sadly, the document offers little insight as to what those non-routin=
g objectives might be.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:72.6pt"><span style=3D"color:#4=
472C4">Ron,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:72.6pt"><span style=3D"color:#4=
472C4">Thank you for elaborating on this comment. The
<b><u>scope of the revised comment</u></b> seem to me more focused and now =
indeed related to this document.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:72.6pt"><span style=3D"color:#4=
472C4">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:72.6pt"><span style=3D"color:#4=
472C4">Ron, Pablo,
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:72.6pt"><span style=3D"color:#4=
472C4">May I suggest that you both follow up to progress on a resolution on=
 the
<b><u>comment on this sentence?</u></b></span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">&nbsp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b><span style=3D"color:=
black">From:
</span></b><span style=3D"color:black">Ron Bonica &lt;</span><a href=3D"mai=
lto:rbonica@juniper.net">rbonica@juniper.net</a><span style=3D"color:black"=
>&gt;<br>
<b>Date: </b>Tuesday, 21 January 2020 at 15:43<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><a href=3D"mai=
lto:pcamaril@cisco.com">pcamaril@cisco.com</a><span style=3D"color:black">&=
gt;, &quot;</span><a href=3D"mailto:bruno.decraene@orange.com">bruno.decrae=
ne@orange.com</a><span style=3D"color:black">&quot; &lt;</span><a href=3D"m=
ailto:bruno.decraene@orange.com">bruno.decraene@orange.com</a><span style=
=3D"color:black">&gt;<br>
<b>Cc: </b>&quot;</span><a href=3D"mailto:spring@ietf.org">spring@ietf.org<=
/a><span style=3D"color:black">&quot; &lt;</span><a href=3D"mailto:spring@i=
etf.org">spring@ietf.org</a><span style=3D"color:black">&gt;<br>
<b>Subject: </b>RE: Introduction of draft-ietf-spring-srv6-network-programm=
ing (was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6)</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt">&nbsp;</span><o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt">Pablo,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt">It is difficult to see how you can add information by removing a f=
ew words.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt">Let&#8217;s begin with the text in
</span><a href=3D"https://urldefense.com/v3/__https:/mailarchive.ietf.org/a=
rch/msg/spring/3WGuQumIfcmH281nwq3s9Un6raI__;!!NEt6yMaO-gk!QFNgjGB5jCPLEQSl=
dG3epqC1f7ZMC9PWe_xRpmVN75UdO_LVdmdmsWWAjFKEpi5z$">https://mailarchive.ietf=
.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6raI</a>.
 If you can see other advantages of SRv6 over SR-MPLS, we can add that info=
rmation to the text in my original message.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt">&nbsp;</span><o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:1.0in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b><span style=3D"font-s=
ize:11.0pt">From:</span></b><span style=3D"font-size:11.0pt"> Pablo Camaril=
lo (pcamaril) &lt;</span><a href=3D"mailto:pcamaril@cisco.com"><span style=
=3D"font-size:11.0pt">pcamaril@cisco.com</span></a><span style=3D"font-size=
:11.0pt">&gt;
<br>
<b>Sent:</b> Thursday, January 16, 2020 1:09 PM<br>
<b>To:</b> Ron Bonica &lt;</span><a href=3D"mailto:rbonica@juniper.net"><sp=
an style=3D"font-size:11.0pt">rbonica@juniper.net</span></a><span style=3D"=
font-size:11.0pt">&gt;;
</span><a href=3D"mailto:bruno.decraene@orange.com"><span style=3D"font-siz=
e:11.0pt">bruno.decraene@orange.com</span></a><span style=3D"font-size:11.0=
pt"><br>
<b>Cc:</b> </span><a href=3D"mailto:spring@ietf.org"><span style=3D"font-si=
ze:11.0pt">spring@ietf.org</span></a><span style=3D"font-size:11.0pt"><br>
<b>Subject:</b> Re: Introduction of draft-ietf-spring-srv6-network-programm=
ing (was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6)</span><o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB" sty=
le=3D"font-size:11.0pt;color:black">Ron,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in;font-variant-caps:normal;=
orphans:auto;text-align:start;widows:auto;word-spacing:0px">
<span lang=3D"EN-GB" style=3D"font-size:11.0pt;color:black">&nbsp;</span><o=
:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB" sty=
le=3D"font-size:11.0pt;color:black">I believe we can easily close this with=
 the following diff:</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB" sty=
le=3D"font-size:11.0pt;color:black">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB" sty=
le=3D"font-size:11.0pt;color:black">&lt;Old&gt;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt;font-family:&quot;Courier New&quot;;color:black">Network programmin=
g combines segment routing</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt;font-family:&quot;Courier New&quot;;color:black">&nbsp;&nbsp; funct=
ions, both simple and complex, to achieve a networking objective</span><o:p=
></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt;font-family:&quot;Courier New&quot;;color:black">&nbsp;&nbsp; that =
goes beyond mere packet routing.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB" sty=
le=3D"font-size:11.0pt;color:black">&lt;/Old&gt;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB" sty=
le=3D"font-size:11.0pt;color:black">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB" sty=
le=3D"font-size:11.0pt;color:black">&lt;New&gt;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt;font-family:&quot;Courier New&quot;;color:black">Network programmin=
g combines segment routing functions to achieve a networking objective</spa=
n><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt;font-family:&quot;Courier New&quot;;color:black">&nbsp;&nbsp; using=
 segments that can represent any instruction, topological or service based.=
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB" sty=
le=3D"font-size:11.0pt;color:black">&lt;/New&gt;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in;font-variant-caps:normal;=
orphans:auto;text-align:start;widows:auto;word-spacing:0px">
<span lang=3D"EN-GB" style=3D"font-size:11.0pt;color:black">&nbsp;</span><o=
:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in;font-variant-caps:normal;=
orphans:auto;text-align:start;widows:auto;word-spacing:0px">
<span lang=3D"EN-GB" style=3D"font-size:11.0pt;color:black">Thanks,</span><=
o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in;font-variant-caps:normal;=
orphans:auto;text-align:start;widows:auto;word-spacing:0px">
<span lang=3D"EN-GB" style=3D"font-size:11.0pt;color:black">Pablo.</span><o=
:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><b><span style=3D"color:=
black">From:
</span></b><span style=3D"color:black">Ron Bonica &lt;</span><a href=3D"mai=
lto:rbonica@juniper.net">rbonica@juniper.net</a><span style=3D"color:black"=
>&gt;<br>
<b>Date: </b>Thursday, 16 January 2020 at 16:58<br>
<b>To: </b>&quot;</span><a href=3D"mailto:bruno.decraene@orange.com">bruno.=
decraene@orange.com</a><span style=3D"color:black">&quot; &lt;</span><a hre=
f=3D"mailto:bruno.decraene@orange.com">bruno.decraene@orange.com</a><span s=
tyle=3D"color:black">&gt;, &quot;Pablo Camarillo (pcamaril)&quot;
 &lt;</span><a href=3D"mailto:pcamaril@cisco.com">pcamaril@cisco.com</a><sp=
an style=3D"color:black">&gt;<br>
<b>Cc: </b>&quot;</span><a href=3D"mailto:spring@ietf.org">spring@ietf.org<=
/a><span style=3D"color:black">&quot; &lt;</span><a href=3D"mailto:spring@i=
etf.org">spring@ietf.org</a><span style=3D"color:black">&gt;<br>
<b>Subject: </b>RE: Introduction of draft-ietf-spring-srv6-network-programm=
ing (was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6)</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt">&nbsp;</span><o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">Bruno,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">Would you like Pablo and=
 me to develop text offline and bring it back to the mailing list? Or would=
 you prefer us to craft the text in a few emails on the mailing list?<o:p><=
/o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:1.5in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><b>From:</b> <a href=3D"=
mailto:bruno.decraene@orange.com">
bruno.decraene@orange.com</a> &lt;<a href=3D"mailto:bruno.decraene@orange.c=
om">bruno.decraene@orange.com</a>&gt;
<br>
<b>Sent:</b> Thursday, January 16, 2020 9:00 AM<br>
<b>To:</b> Pablo Camarillo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco.=
com">pcamaril@cisco.com</a>&gt;; Ron Bonica &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><br>
<b>Subject:</b> RE: Introduction of draft-ietf-spring-srv6-network-programm=
ing (was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6)<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"FR" style=
=3D"color:#1F497D">Pablo,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span lang=3D"FR" style=
=3D"color:#1F497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#1F=
497D">Thanks for the reply.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#1F=
497D">I&#8217;m not seen explicitly what you are proposing to address Ron&#=
8217;s comment, regarding the clarification of this sentence in the draft.<=
/span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#1F=
497D">May I again suggest that both of you follow up to progress on a resol=
ution to clarify the meaning of this sentence in the draft?</span><o:p></o:=
p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#1F=
497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#1F=
497D">Thanks,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#1F=
497D">Bruno</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#1F=
497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"color:#1F=
497D">&nbsp;</span><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><b><span style=3D"font=
-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">From:</span></b><sp=
an style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif"> Pa=
blo Camarillo (pcamaril) [</span><a href=3D"mailto:pcamaril@cisco.com"><spa=
n style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">mail=
to:pcamaril@cisco.com</span></a><span style=3D"font-size:10.0pt;font-family=
:&quot;Tahoma&quot;,sans-serif">]
<br>
<b>Sent:</b> Tuesday, January 14, 2020 6:43 PM<br>
<b>To:</b> </span><a href=3D"mailto:rbonica@juniper.net"><span style=3D"fon=
t-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">rbonica@juniper.ne=
t</span></a><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,=
sans-serif">; DECRAENE Bruno TGI/OLN<br>
<b>Cc:</b> </span><a href=3D"mailto:spring@ietf.org"><span style=3D"font-si=
ze:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">spring@ietf.org</span>=
</a><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-ser=
if"><br>
<b>Subject:</b> Introduction of draft-ietf-spring-srv6-network-programming =
(was Re: [spring] draft-ietf-spring-srv6-network-programming: Relative adva=
ntages of SRv6)</span><o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span lang=3D"EN-GB">(=
Updated the subject to reflect the new topic of this thread: the introducti=
on of this draft)</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span lang=3D"EN-GB">&=
nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span lang=3D"EN-GB">B=
runo,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span lang=3D"EN-GB">&=
nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span lang=3D"EN-GB">Y=
ou are correct. In essence we are saying the same thing as the 3<sup>rd</su=
p> line of RFC8402.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span style=3D"font-si=
ze:10.0pt;font-family:&quot;Courier New&quot;;color:black">A segment can re=
present any instruction, topological or</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span style=3D"font-si=
ze:10.0pt;font-family:&quot;Courier New&quot;;color:black">&nbsp;&nbsp; ser=
vice based.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span lang=3D"EN-GB">&=
nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span lang=3D"EN-GB">F=
or example, for service programming we have a draft-ietf-spring-sr-service-=
programming. This goes beyond mere packet routing. NET-PGM provides the bas=
e and draft-ietf-spring-sr-service-programming
 builds on top of that.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span lang=3D"EN-GB">&=
nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span lang=3D"EN-GB">T=
hanks,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span lang=3D"EN-GB">P=
ablo</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:143.4pt"><span lang=3D"EN-GB">&=
nbsp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"color:=
black">From:
</span></b><span style=3D"color:black">&quot;</span><a href=3D"mailto:bruno=
.decraene@orange.com">bruno.decraene@orange.com</a><span style=3D"color:bla=
ck">&quot; &lt;</span><a href=3D"mailto:bruno.decraene@orange.com">bruno.de=
craene@orange.com</a><span style=3D"color:black">&gt;<br>
<b>Date: </b>Tuesday, 14 January 2020 at 11:02<br>
<b>To: </b>Ron Bonica &lt;</span><a href=3D"mailto:rbonica@juniper.net">rbo=
nica@juniper.net</a><span style=3D"color:black">&gt;, &quot;Pablo Camarillo=
 (pcamaril)&quot; &lt;</span><a href=3D"mailto:pcamaril@cisco.com">pcamaril=
@cisco.com</a><span style=3D"color:black">&gt;<br>
<b>Cc: </b>&quot;</span><a href=3D"mailto:spring@ietf.org">spring@ietf.org<=
/a><span style=3D"color:black">&quot; &lt;</span><a href=3D"mailto:spring@i=
etf.org">spring@ietf.org</a><span style=3D"color:black">&gt;<br>
<b>Subject: </b>RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">Hello Ron, Pablo,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">&nbsp;</span><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"font-s=
ize:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">From:</span></b><span=
 style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif"> Ron =
Bonica [</span><a href=3D"mailto:rbonica@juniper.net"><span style=3D"font-s=
ize:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">mailto:rbonica@junipe=
r.net</span></a><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&qu=
ot;,sans-serif">]
<br>
<b>Sent:</b> Monday, January 13, 2020 9:38 PM<br>
<b>To:</b> DECRAENE Bruno TGI/OLN<br>
<b>Cc:</b> </span><a href=3D"mailto:spring@ietf.org"><span style=3D"font-si=
ze:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">spring@ietf.org</span>=
</a><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-ser=
if">; Pablo Camarillo (pcamaril)<br>
<b>Subject:</b> RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6</span><o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Hello Bruno.<o:p></o:p><=
/p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">According to the network=
 programming draft, &#8220;Network programming combines segment routing fun=
ctions, both simple and complex, to achieve a networking objective that goe=
s beyond mere packet routing.&#8221;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Sadly, the document offe=
rs little insight as to what those non-routing objectives might be.<o:p></o=
:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">Ron,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">Thank you for elaborating on this comment. The scope of the revised c=
omment seem to me more focused and now indeed related to this document.</sp=
an><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">Ron, Pablo,
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">May I suggest that you both follow up to progress on a resolution on =
the comment on this sentence?</span><o:p></o:p></p>
<pre style=3D"margin-left:2.0in"><span style=3D"color:#1F497D">e.g. clarify=
 what is meant by &#8220;beyond packet routing&#8221;, and/or what is exact=
ly meant by this sentence beyond what is already stated in the SR architect=
ure (which for example, but not restricted to, states that</span><span styl=
e=3D"font-size:10.0pt;color:#1F497D">&nbsp; &#8220;</span><span style=3D"fo=
nt-size:10.0pt;font-family:&quot;Courier New&quot;">A segment can represent=
 any instruction, topological or service based.&#8221;</span><span style=3D=
"font-size:10.0pt;color:#1F497D"> )</span><o:p></o:p></pre>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">If this can&#8217;t be reasonably clarified, worse case could possibl=
y be to remove this sentence or fall back to a reference to the/a SR archit=
ecture RFC/section/sentence. As of today, I
 don&#8217;t assume that this point would be a blocking point to progress t=
hat document or to delay it for a long time.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">Thank you,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">--Bruno</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">If SRv6 offers something=
 beyond the mere packet routing capabilities of SR-MPLS, the network progra=
mming draft would be the most appropriate place to mention it. Otherwise, S=
Rv6 is just an IPv6 version of SR-MPLS.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ro=
n<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:2.0in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b>From:</b> <a href=3D"=
mailto:bruno.decraene@orange.com">
bruno.decraene@orange.com</a> &lt;<a href=3D"mailto:bruno.decraene@orange.c=
om">bruno.decraene@orange.com</a>&gt;
<br>
<b>Sent:</b> Monday, January 13, 2020 8:12 AM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;<br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>; Pablo Ca=
marillo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco.com">pcamaril@cisco=
.com</a>&gt;<br>
<b>Subject:</b> RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">Ron,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">&nbsp;</span><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"font-s=
ize:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">From:</span></b><span=
 style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif"> spri=
ng [</span><a href=3D"mailto:spring-bounces@ietf.org"><span style=3D"font-s=
ize:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">mailto:spring-bounces=
@ietf.org</span></a><span style=3D"font-size:10.0pt;font-family:&quot;Tahom=
a&quot;,sans-serif">]
<b>On Behalf Of </b>Ron Bonica<br>
<b>Sent:</b> Friday, January 10, 2020 8:14 PM<br>
<b>To:</b> Pablo Camarillo (pcamaril)<br>
<b>Cc:</b> </span><a href=3D"mailto:spring@ietf.org"><span style=3D"font-si=
ze:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">spring@ietf.org</span>=
</a><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-ser=
if"><br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6</span><o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Chairs,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">I believe that we have t=
wo independent requests for a comparison of the benefits of SRv6 over SR-MP=
LS in the network programming draft.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">A comparison of the benefits of SRv6 over SR-MPLS is one thing that c=
ould possibly be discussed if there is interest from the WG.</span><o:p></o=
:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">E.g. to help network provider make a choice, or in the context of &#8=
220;beyond SRv6&#8221; to help the WG identify the benefit/cost analysis of=
 existing solutions and what we want to achieve with
 new/extensions to SR data planes. </span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">But why do you think that this would belong to draft-ietf-spring-srv6=
-network-programming?
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">Thanks,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">--Bruno</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"color:#1F=
497D">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:2.0in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b>From:</b> spring &lt;=
<a href=3D"mailto:spring-bounces@ietf.org">spring-bounces@ietf.org</a>&gt;
<b>On Behalf Of </b>Pablo Camarillo (pcamaril)<br>
<b>Sent:</b> Friday, January 10, 2020 11:55 AM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;<br>
<b>Cc:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Ron=
, </span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">If you want to discuss y=
our analysis please let&#8217;s do so in a separate email thread out of the=
 context of the Working Group Last Call of draft-ietf-spring-srv6-network-p=
rogramming.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">As I said before: <span =
lang=3D"EN-GB">
draft-ietf-spring-srv6-network-programming is a Standards Track document an=
d this topic is not about any standardization, hence out of scope of this d=
ocument.
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Sam=
e applies to other content (e.g. illustrations) that was formerly in networ=
k programming and we moved to a separate draft since it was not standardizi=
ng anything at all and was merely informative.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Tha=
nks,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Pab=
lo.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB" sty=
le=3D"font-size:24.0pt">&nbsp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"color:=
black">From:
</span></b><span style=3D"color:black">Ron Bonica &lt;</span><a href=3D"mai=
lto:rbonica@juniper.net">rbonica@juniper.net</a><span style=3D"color:black"=
>&gt;<br>
<b>Date: </b>Tuesday, 7 January 2020 at 19:17<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;</span><a href=3D"mai=
lto:pcamaril@cisco.com">pcamaril@cisco.com</a><span style=3D"color:black">&=
gt;<br>
<b>Cc: </b>SPRING WG &lt;</span><a href=3D"mailto:spring@ietf.org">spring@i=
etf.org</a><span style=3D"color:black">&gt;<br>
<b>Subject: </b>RE: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">RFC 8354 reinforces my a=
nalysis in
<a href=3D"https://urldefense.com/v3/__https:/mailarchive.ietf.org/arch/msg=
/spring/3WGuQumIfcmH281nwq3s9Un6raI__;!!NEt6yMaO-gk!SolNvh35q4NS-PTVWOxXAzb=
TnMHltfvPWi_OSjhMYkmm_NucR6imYrrLvc35Kat6$">
https://mailarchive.ietf.org/arch/msg/spring/3WGuQumIfcmH281nwq3s9Un6raI</a=
>. Are you saying that you agree with this analysis?<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"mso-margin-top-al=
t:5.0pt;margin-right:0in;margin-bottom:0in;margin-left:2.0in;margin-bottom:=
.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b>From:</b> Pablo Camar=
illo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco.com">pcamaril@cisco.co=
m</a>&gt;
<br>
<b>Sent:</b> Tuesday, January 7, 2020 4:17 AM<br>
<b>To:</b> Ron Bonica &lt;<a href=3D"mailto:rbonica@juniper.net">rbonica@ju=
niper.net</a>&gt;<br>
<b>Cc:</b> SPRING WG &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org=
</a>&gt;<br>
<b>Subject:</b> Re: [spring] draft-ietf-spring-srv6-network-programming: Re=
lative advantages of SRv6<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Ron=
,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">SPR=
ING has already done this work and documented the SRv6 use-cases in RFC8354=
 before progressing with the SRv6 standardization.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Fur=
ther on, draft-ietf-spring-srv6-network-programming is a Standards Track do=
cument.
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">I f=
ail to see how a cite from RFC8354 or any other text on &#8220;SRv6 vs SR-M=
PLS&#8221; standardises anything at all.
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Not=
e that we have already removed text from draft-ietf-spring-srv6-network-pro=
gramming (e.g. illustrations) because it was not standardising anything.</s=
pan><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Tha=
nk you for the suggestion,</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">Pab=
lo.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span lang=3D"EN-GB">&nb=
sp;</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"color:=
black">From:
</span></b><span style=3D"color:black">spring &lt;</span><a href=3D"mailto:=
spring-bounces@ietf.org">spring-bounces@ietf.org</a><span style=3D"color:bl=
ack">&gt; on behalf of Ron Bonica &lt;</span><a href=3D"mailto:rbonica=3D40=
juniper.net@dmarc.ietf.org">rbonica=3D40juniper.net@dmarc.ietf.org</a><span=
 style=3D"color:black">&gt;<br>
<b>Date: </b>Monday, 30 December 2019 at 11:08<br>
<b>To: </b>SPRING WG &lt;</span><a href=3D"mailto:spring@ietf.org">spring@i=
etf.org</a><span style=3D"color:black">&gt;<br>
<b>Subject: </b>[spring] draft-ietf-spring-srv6-network-programming: Relati=
ve advantages of SRv6</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">Would you consider addin=
g a short section to the draft explaining the relative advantages of SRv6 o=
ver SR-MPLS? This section would explain why an network operator would deplo=
y SRv6 instead of SR-MPLS.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;&nbsp; &nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in">&nbsp;<o:p></o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin-left:.5in;=
text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">&nbsp;</span><o:p></o:p></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt">Please excuse any typos, sent from my 'smart'phone.</span><o:p></o:=
p></p>
<pre style=3D"margin-left:2.0in"><span style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;">________________________________________________=
_________________________________________________________________________</=
span><o:p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;">&nbsp;</span><o:p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;">Ce message et ses pieces jointes peuvent conteni=
r des informations confidentielles ou privilegiees et ne doivent donc</span=
><o:p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span lang=3D"ES" style=3D"font-size:10.0p=
t;font-family:&quot;Courier New&quot;">pas etre diffuses, exploites ou copi=
es sans autorisation. Si vous avez recu ce message par erreur, veuillez le =
signaler</span><o:p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span lang=3D"ES" style=3D"font-size:10.0p=
t;font-family:&quot;Courier New&quot;">a l'expediteur et le detruire ainsi =
que les pieces jointes. Les messages electroniques etant susceptibles d'alt=
eration,</span><o:p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span lang=3D"ES" style=3D"font-size:10.0p=
t;font-family:&quot;Courier New&quot;">Orange decline toute responsabilite =
si ce message a ete altere, deforme ou falsifie. Merci.</span><o:p></o:p></=
pre>
<pre style=3D"margin-left:2.0in"><span lang=3D"ES" style=3D"font-size:10.0p=
t;font-family:&quot;Courier New&quot;">&nbsp;</span><o:p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;">This message and its attachments may contain con=
fidential or privileged information that may be protected by law;</span><o:=
p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;">they should not be distributed, used or copied w=
ithout authorisation.</span><o:p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;">If you have received this email in error, please=
 notify the sender and delete this message and its attachments.</span><o:p>=
</o:p></pre>
<pre style=3D"margin-left:2.0in"><span style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;">As emails may be altered, Orange is not liable f=
or messages that have been modified, changed or falsified.</span><o:p></o:p=
></pre>
<pre style=3D"margin-left:2.0in"><span style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;">Thank you.</span><o:p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;">________________________________________________=
_________________________________________________________________________</=
span><o:p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;">&nbsp;</span><o:p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;">Ce message et ses pieces jointes peuvent conteni=
r des informations confidentielles ou privilegiees et ne doivent donc</span=
><o:p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span lang=3D"ES" style=3D"font-size:10.0p=
t;font-family:&quot;Courier New&quot;">pas etre diffuses, exploites ou copi=
es sans autorisation. Si vous avez recu ce message par erreur, veuillez le =
signaler</span><o:p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span lang=3D"ES" style=3D"font-size:10.0p=
t;font-family:&quot;Courier New&quot;">a l'expediteur et le detruire ainsi =
que les pieces jointes. Les messages electroniques etant susceptibles d'alt=
eration,</span><o:p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span lang=3D"ES" style=3D"font-size:10.0p=
t;font-family:&quot;Courier New&quot;">Orange decline toute responsabilite =
si ce message a ete altere, deforme ou falsifie. Merci.</span><o:p></o:p></=
pre>
<pre style=3D"margin-left:2.0in"><span lang=3D"ES" style=3D"font-size:10.0p=
t;font-family:&quot;Courier New&quot;">&nbsp;</span><o:p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;">This message and its attachments may contain con=
fidential or privileged information that may be protected by law;</span><o:=
p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;">they should not be distributed, used or copied w=
ithout authorisation.</span><o:p></o:p></pre>
<pre style=3D"margin-left:2.0in"><span style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;">If you have received this email in error, please=
 notify the sender and delete this message and its attachments.</span><o:p>=
</o:p></pre>
<pre style=3D"margin-left:2.0in"><span style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;">As emails may be altered, Orange is not liable f=
or messages that have been modified, changed or falsified.</span><o:p></o:p=
></pre>
<pre style=3D"margin-left:2.0in"><span style=3D"font-size:10.0pt;font-famil=
y:&quot;Courier New&quot;">Thank you.</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span lang=3D"FR">________________________=
___________________________________________________________________________=
______________________</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span lang=3D"FR">&nbsp;</span><o:p></o:p>=
</pre>
<pre style=3D"margin-left:1.5in"><span lang=3D"FR">Ce message et ses pieces=
 jointes peuvent contenir des informations confidentielles ou privilegiees =
et ne doivent donc</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span lang=3D"FR">pas etre diffuses, explo=
ites ou copies sans autorisation. Si vous avez recu ce message par erreur, =
veuillez le signaler</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span lang=3D"FR">a l'expediteur et le det=
ruire ainsi que les pieces jointes. Les messages electroniques etant suscep=
tibles d'alteration,</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span lang=3D"FR">Orange decline toute res=
ponsabilite si ce message a ete altere, deforme ou falsifie. Merci.</span><=
o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span lang=3D"FR">&nbsp;</span><o:p></o:p>=
</pre>
<pre style=3D"margin-left:1.5in"><span lang=3D"FR">This message and its att=
achments may contain confidential or privileged information that may be pro=
tected by law;</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span lang=3D"FR">they should not be distr=
ibuted, used or copied without authorisation.</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span lang=3D"FR">If you have received thi=
s email in error, please notify the sender and delete this message and its =
attachments.</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span lang=3D"FR">As emails may be altered=
, Orange is not liable for messages that have been modified, changed or fal=
sified.</span><o:p></o:p></pre>
<pre style=3D"margin-left:1.5in"><span lang=3D"FR">Thank you.</span><o:p></=
o:p></pre>
</div>
</body>
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Hi Ron,

I am really not sure where are you going with this bumerang request.

Do you think that customers or users of the technology are so incapable
that IETF must provide them list of advantages of one protocol choice vs
alternatives ?

Is this really an IETF job to provide advantages of say ISIS over OSPF ?
IPSec/DTLS VPNs over MPLS-VPNs ? SRv6 over SR-MPLS ?

IETF works on standards defining interoperable protocol extensions if there
is support and interest from the industry. Apparently both SRv6 and SR-MPLS
demonstrated such support and interest.

It would be pretty bad and quite unhealthy now to take IETF to become a
technology judge. Especially in the subject of your request where choice of
SR transport goes fundamentally way outside of this WG.

Kind regards,
R.


On Thu, Jan 23, 2020 at 2:23 PM Ron Bonica <rbonica=
40juniper.net@dmarc.ietf.org> wrote:

> Pablo,
>
>
>
> So where should the advantages of SRv6 over SR-MPLS be documented?
>
>
>
> Maybe someone in the WG will offer to start a new document?
>
>
>
>                                   Ron
>

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<div dir=3D"ltr"><div>Hi Ron,</div><div><br></div><div>I am really not sure=
 where are you going with this bumerang request.=C2=A0</div><div><br></div>=
<div>Do you think that customers or users of the technology are so incapabl=
e that IETF must provide them list of advantages of one protocol choice vs =
alternatives ?=C2=A0</div><div><br></div><div>Is this really an IETF job to=
 provide advantages of say ISIS over OSPF ? IPSec/DTLS VPNs over MPLS-VPNs =
? SRv6 over SR-MPLS ?=C2=A0</div><div><br></div><div>IETF works on standard=
s defining interoperable protocol extensions if there is support and=C2=A0i=
nterest from the industry. Apparently both SRv6 and SR-MPLS demonstrated su=
ch support and interest.=C2=A0</div><div><br></div><div>It would be pretty =
bad and quite unhealthy now to take IETF to become a technology judge. Espe=
cially in the subject of your request where choice of SR transport goes fun=
damentally way outside of this WG.=C2=A0</div><div><br></div><div>Kind rega=
rds,</div><div>R.</div><div><br></div><div><br></div><div class=3D"gmail_qu=
ote"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, Jan 23, 2020 at 2:23 PM =
Ron Bonica &lt;rbonica=3D<a href=3D"mailto:40juniper.net@dmarc.ietf.org">40=
juniper.net@dmarc.ietf.org</a>&gt; wrote:<br></div><blockquote class=3D"gma=
il_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,2=
04,204);padding-left:1ex">





<div lang=3D"EN-US">
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Pablo,<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt"><u></u>=C2=A0<u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">So where should the a=
dvantages of SRv6 over SR-MPLS be documented?<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt"><u></u>=C2=A0<u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Maybe someone in the =
WG will offer to start a new document?<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt"><u></u>=C2=A0<u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0 Ron</span></p></div></div>
</blockquote></div></div>

--000000000000cfa558059ccef68f--


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From: Ron Bonica <rbonica@juniper.net>
To: Robert Raszuk <robert@raszuk.net>, Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>
CC: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, "EXT - Byron.Hoskins@sprint.com" <Byron.Hoskins@sprint.com>, "spring@ietf.org" <spring@ietf.org>, "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
Thread-Topic: [spring] Introduction of draft-ietf-spring-srv6-network-programming (was Re: draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6)
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/QSttZxwfJRef3_6z-Oc_evUAGOg>
Subject: Re: [spring] Introduction of draft-ietf-spring-srv6-network-programming (was Re: draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6)
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--_000_BN7PR05MB3938094E04A8757BDE0DBD31AE0F0BN7PR05MB3938namp_
Content-Type: text/plain; charset="us-ascii"
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Robert,

Is the question really that difficult to answer?

If not, the effort required to answer it would be much less than the effort=
 required to avoid answering it!

                                                                           =
Ron

From: spring <spring-bounces@ietf.org> On Behalf Of Robert Raszuk
Sent: Thursday, January 23, 2020 8:53 AM
To: Ron Bonica <rbonica=3D40juniper.net@dmarc.ietf.org>
Cc: bruno.decraene@orange.com; EXT - Byron.Hoskins@sprint.com <Byron.Hoskin=
s@sprint.com>; spring@ietf.org; Pablo Camarillo (pcamaril) <pcamaril@cisco.=
com>
Subject: Re: [spring] Introduction of draft-ietf-spring-srv6-network-progra=
mming (was Re: draft-ietf-spring-srv6-network-programming: Relative advanta=
ges of SRv6)

Hi Ron,

I am really not sure where are you going with this bumerang request.

Do you think that customers or users of the technology are so incapable tha=
t IETF must provide them list of advantages of one protocol choice vs alter=
natives ?

Is this really an IETF job to provide advantages of say ISIS over OSPF ? IP=
Sec/DTLS VPNs over MPLS-VPNs ? SRv6 over SR-MPLS ?

IETF works on standards defining interoperable protocol extensions if there=
 is support and interest from the industry. Apparently both SRv6 and SR-MPL=
S demonstrated such support and interest.

It would be pretty bad and quite unhealthy now to take IETF to become a tec=
hnology judge. Especially in the subject of your request where choice of SR=
 transport goes fundamentally way outside of this WG.

Kind regards,
R.


On Thu, Jan 23, 2020 at 2:23 PM Ron Bonica <rbonica=3D40juniper.net@dmarc.i=
etf.org<mailto:40juniper.net@dmarc.ietf.org>> wrote:
Pablo,

So where should the advantages of SRv6 over SR-MPLS be documented?

Maybe someone in the WG will offer to start a new document?

                                  Ron


Juniper Business Use Only

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<p class=3D"MsoNormal">Robert,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Is the question really that difficult to answer? <o:=
p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">If not, the effort required to answer it would be mu=
ch less than the effort required to avoid answering it!<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;Ron<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><b>From:</b> spring &lt;spring-bounces@ietf.org&gt; =
<b>On Behalf Of
</b>Robert Raszuk<br>
<b>Sent:</b> Thursday, January 23, 2020 8:53 AM<br>
<b>To:</b> Ron Bonica &lt;rbonica=3D40juniper.net@dmarc.ietf.org&gt;<br>
<b>Cc:</b> bruno.decraene@orange.com; EXT - Byron.Hoskins@sprint.com &lt;By=
ron.Hoskins@sprint.com&gt;; spring@ietf.org; Pablo Camarillo (pcamaril) &lt=
;pcamaril@cisco.com&gt;<br>
<b>Subject:</b> Re: [spring] Introduction of draft-ietf-spring-srv6-network=
-programming (was Re: draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6)<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<div>
<p class=3D"MsoNormal">Hi Ron,<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">I am really not sure where are you going with this b=
umerang request.&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Do you think that customers or users of the technolo=
gy are so incapable that IETF must provide them list of advantages of one p=
rotocol choice vs alternatives ?&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Is this really an IETF job to provide advantages of =
say ISIS over OSPF ? IPSec/DTLS VPNs over MPLS-VPNs ? SRv6 over SR-MPLS ?&n=
bsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">IETF works on standards defining interoperable proto=
col extensions if there is support and&nbsp;interest from the industry. App=
arently both SRv6 and SR-MPLS demonstrated such support and interest.&nbsp;=
<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">It would be pretty bad and quite unhealthy now to ta=
ke IETF to become a technology judge. Especially in the subject of your req=
uest where choice of SR transport goes fundamentally way outside of this WG=
.&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Kind regards,<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal">R.<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<div>
<p class=3D"MsoNormal">On Thu, Jan 23, 2020 at 2:23 PM Ron Bonica &lt;rboni=
ca=3D<a href=3D"mailto:40juniper.net@dmarc.ietf.org">40juniper.net@dmarc.ie=
tf.org</a>&gt; wrote:<o:p></o:p></p>
</div>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0i=
n 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-=
bottom:5.0pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">So where should the advantages of SRv6 over SR-MPLS be documented?=
<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Maybe someone in the WG will offer to start a new document?<o:p></=
o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p=
>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0in;margin=
-bottom:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
</div>
</div>
</blockquote>
</div>
</div>
</div>
</body>
</html>

--_000_BN7PR05MB3938094E04A8757BDE0DBD31AE0F0BN7PR05MB3938namp_--


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From: Robert Raszuk <robert@raszuk.net>
Date: Thu, 23 Jan 2020 16:11:09 +0100
Message-ID: <CAOj+MMGuqMaqjYZ_zF7hnR+kiEXPZjuEEeaT=AYFQgRbWkkftQ@mail.gmail.com>
To: Ron Bonica <rbonica@juniper.net>
Cc: Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>,  "bruno.decraene@orange.com" <bruno.decraene@orange.com>,  "EXT - Byron.Hoskins@sprint.com" <Byron.Hoskins@sprint.com>, "spring@ietf.org" <spring@ietf.org>,  "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/BQtzkEOVz61n0qWcVbyX5xNJZ-s>
Subject: Re: [spring] Introduction of draft-ietf-spring-srv6-network-programming (was Re: draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6)
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--000000000000de84d1059cd00dad
Content-Type: text/plain; charset="UTF-8"

Ron,

The question you asked is like request to provide advantages of traveling
by plane vs by car.

To me SRv6 is completely different solution then SR-MPLS in all aspects of
it. I listed few examples but you had different opinion. And I really have
no time now to argue with you about advantages of choosing IP vs MPLS
transport in any network.

Best,
R.

On Thu, Jan 23, 2020 at 3:59 PM Ron Bonica <rbonica@juniper.net> wrote:

> Robert,
>
>
>
> Is the question really that difficult to answer?
>
>
>
> If not, the effort required to answer it would be much less than the
> effort required to avoid answering it!
>
>
>
>
>                                                    Ron
>
>
>
> *From:* spring <spring-bounces@ietf.org> *On Behalf Of *Robert Raszuk
> *Sent:* Thursday, January 23, 2020 8:53 AM
> *To:* Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>
> *Cc:* bruno.decraene@orange.com; EXT - Byron.Hoskins@sprint.com <
> Byron.Hoskins@sprint.com>; spring@ietf.org; Pablo Camarillo (pcamaril) <
> pcamaril@cisco.com>
> *Subject:* Re: [spring] Introduction of
> draft-ietf-spring-srv6-network-programming (was Re:
> draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6)
>
>
>
> Hi Ron,
>
>
>
> I am really not sure where are you going with this bumerang request.
>
>
>
> Do you think that customers or users of the technology are so incapable
> that IETF must provide them list of advantages of one protocol choice vs
> alternatives ?
>
>
>
> Is this really an IETF job to provide advantages of say ISIS over OSPF ?
> IPSec/DTLS VPNs over MPLS-VPNs ? SRv6 over SR-MPLS ?
>
>
>
> IETF works on standards defining interoperable protocol extensions if
> there is support and interest from the industry. Apparently both SRv6 and
> SR-MPLS demonstrated such support and interest.
>
>
>
> It would be pretty bad and quite unhealthy now to take IETF to become a
> technology judge. Especially in the subject of your request where choice of
> SR transport goes fundamentally way outside of this WG.
>
>
>
> Kind regards,
>
> R.
>
>
>
>
>
> On Thu, Jan 23, 2020 at 2:23 PM Ron Bonica <rbonica=
> 40juniper.net@dmarc.ietf.org> wrote:
>
> Pablo,
>
>
>
> So where should the advantages of SRv6 over SR-MPLS be documented?
>
>
>
> Maybe someone in the WG will offer to start a new document?
>
>
>
>                                   Ron
>
>
>
> Juniper Business Use Only
>
>

--000000000000de84d1059cd00dad
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Ron,<div><br></div><div>The question you asked is like req=
uest to provide advantages of traveling by plane vs by car.=C2=A0</div><div=
><br></div><div>To me SRv6 is completely different solution then SR-MPLS in=
 all aspects of it. I listed few examples but you had different opinion. An=
d=C2=A0I really have no time now to argue with you about advantages of choo=
sing IP vs MPLS transport in any network.=C2=A0</div><div><br></div><div>Be=
st,</div><div>R.</div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr"=
 class=3D"gmail_attr">On Thu, Jan 23, 2020 at 3:59 PM Ron Bonica &lt;<a hre=
f=3D"mailto:rbonica@juniper.net">rbonica@juniper.net</a>&gt; wrote:<br></di=
v><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;borde=
r-left:1px solid rgb(204,204,204);padding-left:1ex">





<div lang=3D"EN-US">
<div class=3D"gmail-m_7808860073985252144WordSection1">
<p class=3D"MsoNormal">Robert,<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Is the question really that difficult to answer? <u>=
</u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">If not, the effort required to answer it would be mu=
ch less than the effort required to avoid answering it!<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0Ron<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><b>From:</b> spring &lt;<a href=3D"mailto:spring-bou=
nces@ietf.org" target=3D"_blank">spring-bounces@ietf.org</a>&gt; <b>On Beha=
lf Of
</b>Robert Raszuk<br>
<b>Sent:</b> Thursday, January 23, 2020 8:53 AM<br>
<b>To:</b> Ron Bonica &lt;rbonica=3D<a href=3D"mailto:40juniper.net@dmarc.i=
etf.org" target=3D"_blank">40juniper.net@dmarc.ietf.org</a>&gt;<br>
<b>Cc:</b> <a href=3D"mailto:bruno.decraene@orange.com" target=3D"_blank">b=
runo.decraene@orange.com</a>; EXT - <a href=3D"mailto:Byron.Hoskins@sprint.=
com" target=3D"_blank">Byron.Hoskins@sprint.com</a> &lt;<a href=3D"mailto:B=
yron.Hoskins@sprint.com" target=3D"_blank">Byron.Hoskins@sprint.com</a>&gt;=
; <a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a>;=
 Pablo Camarillo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco.com" targe=
t=3D"_blank">pcamaril@cisco.com</a>&gt;<br>
<b>Subject:</b> Re: [spring] Introduction of draft-ietf-spring-srv6-network=
-programming (was Re: draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6)<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<div>
<div>
<p class=3D"MsoNormal">Hi Ron,<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">I am really not sure where are you going with this b=
umerang request.=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Do you think that customers or users of the technolo=
gy are so incapable that IETF must provide them list of advantages of one p=
rotocol choice vs alternatives ?=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Is this really an IETF job to provide advantages of =
say ISIS over OSPF ? IPSec/DTLS VPNs over MPLS-VPNs ? SRv6 over SR-MPLS ?=
=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">IETF works on standards defining interoperable proto=
col extensions if there is support and=C2=A0interest from the industry. App=
arently both SRv6 and SR-MPLS demonstrated such support and interest.=C2=A0=
<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">It would be pretty bad and quite unhealthy now to ta=
ke IETF to become a technology judge. Especially in the subject of your req=
uest where choice of SR transport goes fundamentally way outside of this WG=
.=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Kind regards,<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">R.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<div>
<p class=3D"MsoNormal">On Thu, Jan 23, 2020 at 2:23 PM Ron Bonica &lt;rboni=
ca=3D<a href=3D"mailto:40juniper.net@dmarc.ietf.org" target=3D"_blank">40ju=
niper.net@dmarc.ietf.org</a>&gt; wrote:<u></u><u></u></p>
</div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0in 0in 0in 6pt;margin:5pt 0i=
n 5pt 4.8pt">
<div>
<div>
<p class=3D"MsoNormal">Pablo,<u></u><u></u></p>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
<p class=3D"MsoNormal">So where should the advantages of SRv6 over SR-MPLS =
be documented?<u></u><u></u></p>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
<p class=3D"MsoNormal">Maybe someone in the WG will offer to start a new do=
cument?<u></u><u></u></p>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
<p class=3D"MsoNormal">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Ro=
n<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"gmail-m_7808860073985252144msipfooter30b3d538" align=3D"center"=
 style=3D"margin:0in 0in 0.0001pt;text-align:center">
<span style=3D"font-size:7pt;color:black">Juniper Business Use Only</span><=
u></u><u></u></p>
</div>
</div>
</blockquote>
</div>
</div>
</div>
</div>

</blockquote></div>

--000000000000de84d1059cd00dad--


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From: Ron Bonica <rbonica@juniper.net>
To: Robert Raszuk <robert@raszuk.net>
CC: Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>, "bruno.decraene@orange.com" <bruno.decraene@orange.com>, "EXT - Byron.Hoskins@sprint.com" <Byron.Hoskins@sprint.com>, "spring@ietf.org" <spring@ietf.org>, "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
Thread-Topic: [spring] Introduction of draft-ietf-spring-srv6-network-programming (was Re: draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6)
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/oq30clOdA1oTCxpaMG4hK-39Nq0>
Subject: Re: [spring] Introduction of draft-ietf-spring-srv6-network-programming (was Re: draft-ietf-spring-srv6-network-programming: Relative advantages of SRv6)
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--_000_BN7PR05MB39387E387DA77A2A8456104AAE0F0BN7PR05MB3938namp_
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable

Robert,

Again, we agree on something. That is, that both of us have better things t=
o do than to continue this discussion.

So, let us agree that the only advantages of SRv6 over SR-MPLS are those do=
cumented in RFC 8354. That is, that SRv6 can be deployed in some places whe=
re SR-MPLS cannot.

                                                                           =
      Ron


From: Robert Raszuk <robert@raszuk.net>
Sent: Thursday, January 23, 2020 10:11 AM
To: Ron Bonica <rbonica@juniper.net>
Cc: Ron Bonica <rbonica=3D40juniper.net@dmarc.ietf.org>; bruno.decraene@ora=
nge.com; EXT - Byron.Hoskins@sprint.com <Byron.Hoskins@sprint.com>; spring@=
ietf.org; Pablo Camarillo (pcamaril) <pcamaril@cisco.com>
Subject: Re: [spring] Introduction of draft-ietf-spring-srv6-network-progra=
mming (was Re: draft-ietf-spring-srv6-network-programming: Relative advanta=
ges of SRv6)

Ron,

The question you asked is like request to provide advantages of traveling b=
y plane vs by car.

To me SRv6 is completely different solution then SR-MPLS in all aspects of =
it. I listed few examples but you had different opinion. And I really have =
no time now to argue with you about advantages of choosing IP vs MPLS trans=
port in any network.

Best,
R.

On Thu, Jan 23, 2020 at 3:59 PM Ron Bonica <rbonica@juniper.net<mailto:rbon=
ica@juniper.net>> wrote:
Robert,

Is the question really that difficult to answer?

If not, the effort required to answer it would be much less than the effort=
 required to avoid answering it!

                                                                           =
Ron

From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> On B=
ehalf Of Robert Raszuk
Sent: Thursday, January 23, 2020 8:53 AM
To: Ron Bonica <rbonica=3D40juniper.net@dmarc.ietf.org<mailto:40juniper.net=
@dmarc.ietf.org>>
Cc: bruno.decraene@orange.com<mailto:bruno.decraene@orange.com>; EXT - Byro=
n.Hoskins@sprint.com<mailto:Byron.Hoskins@sprint.com> <Byron.Hoskins@sprint=
.com<mailto:Byron.Hoskins@sprint.com>>; spring@ietf.org<mailto:spring@ietf.=
org>; Pablo Camarillo (pcamaril) <pcamaril@cisco.com<mailto:pcamaril@cisco.=
com>>
Subject: Re: [spring] Introduction of draft-ietf-spring-srv6-network-progra=
mming (was Re: draft-ietf-spring-srv6-network-programming: Relative advanta=
ges of SRv6)

Hi Ron,

I am really not sure where are you going with this bumerang request.

Do you think that customers or users of the technology are so incapable tha=
t IETF must provide them list of advantages of one protocol choice vs alter=
natives ?

Is this really an IETF job to provide advantages of say ISIS over OSPF ? IP=
Sec/DTLS VPNs over MPLS-VPNs ? SRv6 over SR-MPLS ?

IETF works on standards defining interoperable protocol extensions if there=
 is support and interest from the industry. Apparently both SRv6 and SR-MPL=
S demonstrated such support and interest.

It would be pretty bad and quite unhealthy now to take IETF to become a tec=
hnology judge. Especially in the subject of your request where choice of SR=
 transport goes fundamentally way outside of this WG.

Kind regards,
R.


On Thu, Jan 23, 2020 at 2:23 PM Ron Bonica <rbonica=3D40juniper.net@dmarc.i=
etf.org<mailto:40juniper.net@dmarc.ietf.org>> wrote:
Pablo,

So where should the advantages of SRv6 over SR-MPLS be documented?

Maybe someone in the WG will offer to start a new document?

                                  Ron


Juniper Business Use Only


Juniper Business Use Only

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<body lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal">Robert,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Again, we agree on something. That is, that both of =
us have better things to do than to continue this discussion.<o:p></o:p></p=
>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">So, let us agree that the <b>only</b> advantages of =
SRv6 over SR-MPLS are those documented in RFC 8354. That is, that SRv6 can =
be deployed in some places where SR-MPLS cannot.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><b>From:</b> Robert Raszuk &lt;robert@raszuk.net&gt;=
 <br>
<b>Sent:</b> Thursday, January 23, 2020 10:11 AM<br>
<b>To:</b> Ron Bonica &lt;rbonica@juniper.net&gt;<br>
<b>Cc:</b> Ron Bonica &lt;rbonica=3D40juniper.net@dmarc.ietf.org&gt;; bruno=
.decraene@orange.com; EXT - Byron.Hoskins@sprint.com &lt;Byron.Hoskins@spri=
nt.com&gt;; spring@ietf.org; Pablo Camarillo (pcamaril) &lt;pcamaril@cisco.=
com&gt;<br>
<b>Subject:</b> Re: [spring] Introduction of draft-ietf-spring-srv6-network=
-programming (was Re: draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6)<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<p class=3D"MsoNormal">Ron,<o:p></o:p></p>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">The question you asked is like request to provide ad=
vantages of traveling by plane vs by car.&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">To me SRv6 is completely different solution then SR-=
MPLS in all aspects of it. I listed few examples but you had different opin=
ion. And&nbsp;I really have no time now to argue with you about advantages =
of choosing IP vs MPLS transport in any
 network.&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Best,<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal">R.<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<div>
<p class=3D"MsoNormal">On Thu, Jan 23, 2020 at 3:59 PM Ron Bonica &lt;<a hr=
ef=3D"mailto:rbonica@juniper.net">rbonica@juniper.net</a>&gt; wrote:<o:p></=
o:p></p>
</div>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0i=
n 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-=
bottom:5.0pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Robert,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Is the question really that difficult to answer?
<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">If not, the effort required to answer it would be much less than t=
he effort required to avoid answering it!<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;Ron<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><b>From:</b> spring &lt;<a href=3D"mailto:spring-bounces@ietf.org"=
 target=3D"_blank">spring-bounces@ietf.org</a>&gt;
<b>On Behalf Of </b>Robert Raszuk<br>
<b>Sent:</b> Thursday, January 23, 2020 8:53 AM<br>
<b>To:</b> Ron Bonica &lt;rbonica=3D<a href=3D"mailto:40juniper.net@dmarc.i=
etf.org" target=3D"_blank">40juniper.net@dmarc.ietf.org</a>&gt;<br>
<b>Cc:</b> <a href=3D"mailto:bruno.decraene@orange.com" target=3D"_blank">b=
runo.decraene@orange.com</a>; EXT -
<a href=3D"mailto:Byron.Hoskins@sprint.com" target=3D"_blank">Byron.Hoskins=
@sprint.com</a> &lt;<a href=3D"mailto:Byron.Hoskins@sprint.com" target=3D"_=
blank">Byron.Hoskins@sprint.com</a>&gt;;
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a>; P=
ablo Camarillo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco.com" target=
=3D"_blank">pcamaril@cisco.com</a>&gt;<br>
<b>Subject:</b> Re: [spring] Introduction of draft-ietf-spring-srv6-network=
-programming (was Re: draft-ietf-spring-srv6-network-programming: Relative =
advantages of SRv6)<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Hi Ron,<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">I am really not sure where are you going with this bumerang reques=
t.&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Do you think that customers or users of the technology are so inca=
pable that IETF must provide them list of advantages of one protocol choice=
 vs alternatives ?&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Is this really an IETF job to provide advantages of say ISIS over =
OSPF ? IPSec/DTLS VPNs over MPLS-VPNs ? SRv6 over SR-MPLS ?&nbsp;<o:p></o:p=
></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">IETF works on standards defining interoperable protocol extensions=
 if there is support and&nbsp;interest from the industry. Apparently both S=
Rv6 and SR-MPLS demonstrated such support
 and interest.&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">It would be pretty bad and quite unhealthy now to take IETF to bec=
ome a technology judge. Especially in the subject of your request where cho=
ice of SR transport goes fundamentally
 way outside of this WG.&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Kind regards,<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">R.<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
</div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">On Thu, Jan 23, 2020 at 2:23 PM Ron Bonica &lt;rbonica=3D<a href=
=3D"mailto:40juniper.net@dmarc.ietf.org" target=3D"_blank">40juniper.net@dm=
arc.ietf.org</a>&gt; wrote:<o:p></o:p></p>
</div>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0i=
n 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-=
bottom:5.0pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Pablo,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">So where should the advantages of SRv6 over SR-MPLS be documented?=
<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Maybe someone in the WG will offer to start a new document?<o:p></=
o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ron<o:p></o:p></p=
>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&nbsp;<o:p></o:p></p>
<p class=3D"gmail-m7808860073985252144msipfooter30b3d538" align=3D"center" =
style=3D"margin:0in;margin-bottom:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0in;margin=
-bottom:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
</div>
</div>
</blockquote>
</div>
</div>
</div>
</div>
</blockquote>
</div>
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From: "Zafar Ali (zali)" <zali@cisco.com>
To: Loa Andersson <loa@pi.nu>, Brian E Carpenter <brian.e.carpenter@gmail.com>, Ole Troan <otroan@employees.org>, 6man WG <ipv6@ietf.org>, SPRING WG <spring@ietf.org>
CC: 6man Chairs <6man-chairs@ietf.org>, "Zafar Ali (zali)" <zali@cisco.com>
Thread-Topic: [spring] 6man w.g. last call for <draft-ietf-6man-spring-srv6-oam>
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Date: Thu, 23 Jan 2020 23:46:37 +0000
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Subject: Re: [spring] 6man w.g. last call for <draft-ietf-6man-spring-srv6-oam>
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From: Greg Mirsky <gregimirsky@gmail.com>
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To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
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Subject: Re: [spring] WGLC - draft-ietf-spring-srv6-network-programming
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Hi Pablo,
thank you for your thoughtful consideration of my comments. Please find my
new notes in-line below tagged GIM>>.

Regards,
Greg

On Tue, Jan 21, 2020 at 11:08 PM Pablo Camarillo (pcamaril) <
pcamaril@cisco.com> wrote:

> Hi Greg,
>
>
>
> Inline.
>
>
>
> Thanks,
>
> Pablo.
>
>
>
> *From: *Greg Mirsky <gregimirsky@gmail.com>
> *Date: *Sunday, 19 January 2020 at 20:28
> *To: *"Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
> *Cc: *"spring@ietf.org" <spring@ietf.org>
> *Subject: *Re: WGLC - draft-ietf-spring-srv6-network-programming
>
>
>
> Hi Pablo,
>
> thank you for sharing your opinion. I understand that you believe that
> draft-ietf-6man-spring-srv6-oam will not change and will be published wit=
h
> defining the O-flag as
>
>       O-flag: OAM flag.  When set, it indicates that this packet is an
>       operations and management (OAM) packet.
>
> I, on the other hand, am much less certain that that draft and SRv6 OAM,
> in general, require the special flag in SRH. I believe that progressing
> the draft-ietf-spring-srv6-network-programming with the current text and
> the informative reference increases the likelihood that an Errata must be
> filed one the SRv6 OAM draft is published.
>
>
>
> PC:
>
> I believe that we can trim the text in section 6.3 to avoid mentioning th=
e
> O-bit without reducing the overall quality of the document.
>
> <old>
>
>    [I-D.ietf-6man-spring-srv6-oam] defines OAM behaviors for SRv6.  This
>
>    includes the definition of the SRH Flag 'O-bit', as well as
>
>    additional SR Endpoint behaviors for OAM purposes.
>
> </old>
>
> <new>
>
>    [I-D.ietf-6man-spring-srv6-oam] defines OAM behaviors for SRv6.  This
>
>    includes the definition of additional SR Endpoint behaviors for OAM
> purposes.
>
> </new>
>
> Do you agree with this change?
>
GIM>> I agree that the new text is more clear and less dependent on the
discussion of I-D.ietf-6man-spring-srv6-oam. Though the "OAM behaviors for
SRv6" that are introduced in the draft, i.e., "punt the packet" and "punt
the packet with a timestamp", are being discussed and may change as the
result of the discussion by 6man WG. Hence I think that it be better to not
to reference   I-D.ietf-6man-spring-srv6-oam altogether.

>
>
> And as we're discussing a sub-section in the Operation section, I've got
> few questions on counters, hope you don't mind:
>
> =C2=B7         As this is part of the operational considerations, should =
there
> be any recommendation on the length of the counters?
>
> PC: Counter length is implementation dependent. The capabilities of
> different platforms have significant hairpin as to make any recommendatio=
n
> irrelevant.
>
> =C2=B7         Also, the usual drawback of detailed statistics to charact=
erize
> a flow is scaling. Any consideration and recommendation on that?
>
> PC: There is no per-flow statistics. It is a counter per SRv6 SID. An SRv=
6
> SID is shared among different flows. No per-flow scaling is required.
>
> =C2=B7         And last. I didn't find any of these counters being discus=
sed
> in draft-ietf-6man-spring-srv6-oam. Perhaps you can help me with a
> reference to the SRv6 document that uses them.
>
> PC: The counters are required by the controller. Its usage is out of the
> scope of this document.
>
GIM>> I think that if SRv6 OAM was part of the network programming draft,
then defining these counters, that are, in my understanding, an integral
part of SRv6 OAM, logical, in the right place. But since SRv6 OAM is
discussed in the draft of its own, I suggest considering moving Section 6.1
Counters to I-D.ietf-6man-spring-srv6-oam.

Regards,
>
> Greg
>
>
>
>
>
> On Mon, Jan 13, 2020 at 10:23 AM Pablo Camarillo (pcamaril) <
> pcamaril@cisco.com> wrote:
>
> Hi Greg,
>
>
>
> Inline.
>
>
>
> Thank you,
>
> Pablo.
>
>
>
> *From: *Greg Mirsky <gregimirsky@gmail.com>
> *Date: *Sunday, 12 January 2020 at 04:01
> *To: *=E2=80=9CPablo Camarillo (pcamaril)=E2=80=9D <pcamaril@cisco.com>
> *Cc: *=E2=80=9Cspring@ietf.org=E2=80=9D <spring@ietf.org>
> *Subject: *Re: WGLC =E2=80=93 draft-ietf-spring-srv6-network-programming
>
>
>
> Hi Pablo,
>
> thank you for your expedient response. Please find my new notes under
> GIM>> tag below in-line.
>
>
>
> Regards,
>
> Greg
>
>
>
> On Fri, Jan 10, 2020 at 1:09 PM Pablo Camarillo (pcamaril) <
> pcamaril@cisco.com> wrote:
>
> Hi Greg,
>
>
>
> Inline.
>
>
>
> Thanks,
>
> Pablo.
>
>
>
> *From: *Greg Mirsky <gregimirsky@gmail.com>
> *Date: *Tuesday, 7 January 2020 at 21:01
> *To: *Bruno Decraene <bruno.decraene@orange.com>
> *Cc: *SPRING WG List <spring@ietf.org>, =E2=80=9C6man@ietf.org=E2=80=9D <=
6man@ietf.org>,
> draft-ietf-spring-srv6-network-programming <
> draft-ietf-spring-srv6-network-programming@ietf.org>
> *Subject: *Re: WGLC =E2=80=93 draft-ietf-spring-srv6-network-programming
> *Resent from: *<alias-bounces@ietf.org>
> *Resent to: *<cf@cisco.com>, <pcamaril@cisco.com>, <john@leddy.net>, <
> daniel.voyer@bell.ca>, <satoru.matsushima@g.softbank.co.jp>, <
> lizhenbin@huawei.com>
> *Resent date: *Tuesday, 7 January 2020 at 21:01
>
>
>
> Dear Authors, WG Chairs, et al.,
>
> I hope I=E2=80=99m not too late with my comments and questions on the doc=
ument.
> Please kindly consider them as WG LC comments:
>
> =C2=B7         I have a question regarding the following pseudo-code:
>
>   S08.   Max_LE =3D (Hdr Ext Len / 2) =E2=80=93 1
>
>   S09.   If ((Last Entry > max_LE) or (Segments Left > (Last Entry+1)) {
>
>   S10.      Send an ICMP Parameter Problem to the Source Address,
>
>                Code 0 (Erroneous header field encountered),
>
>                Pointer set to the Segments Left field.
>
>                Interrupt packet processing and discard the packet.
>
>   S11.   }
>
>
>
> According to RFC 8200, Hdr Ext Len is the length of the extension header
> in 8-octet units, not including the first 8 octets. Thus, as I understand=
,
> max_LE is the length in 8-octet units of half of the extension header les=
s
> one. On the other hand, Last Entry and Segments Left are indices. Hence m=
y
> question, What is being compared in line S09 ( Last Entry > max_LE)? Leng=
th
> and index? If the goal is to use Hdr Ext Len to calculate the number of
> entries in the header, then what assumption is used in S08? Is it that th=
e
> entry=E2=80=99s length is always and only 128 bits, i.e. 16 octets? I bel=
ieve that
> using such an assumption is too narrowing and limiting to SRH.
>
>
>
> PC: This has already been discussed with Adrian. Please check this thread=
:
> https://mailarchive.ietf.org/arch/msg/spring/IOA_4nlNPacD2v7Jue2dkGeOABk
>
> GIM>> Thank you for the reference. In some aspects, part of my statement
> is repeating your answer to Adrain. The only length on an element in SRH
> considered is 128 bits, the length of IPv6 address. I think that your
> explanation of how you have arrived at th following formula
>
>     S08.   Max_LE =3D (Hdr Ext Len / 2) =E2=80=93 1
>
>  will benefit the document.
>
> My question to you and SPRING WG goes beyond this scenario. Considering
> presented in Singapore Unified Identifier proposals (
> draft-mirsky-6man-unified-id-sr
> <https://datatracker.ietf.org/doc/draft-mirsky-6man-unified-id-sr/> and
> draft-wmsaxw-6man-usid-id-use
> <https://datatracker.ietf.org/doc/draft-gmsm-bess-evpn-bfd/?include_text=
=3D1>),
> I believe other scenarios of using SRH, with elements of length other tha=
n
> 128 bits should be accommodated, e.g., 32 bits-long elements.
>
> i.
>
>
>
> PC: It is up to the draft-mirsky authors to standardize in their draft th=
e
> changes to the SRH processing. As per today the draft-mirsky proposal is
> still an individual document.
>
>
>
> =C2=B7         Another question is to Section 6.3. What value do you see =
in
> this section? I've noticed that draft-ietf-6man-spring-srv6-oam is in the
> Informational References section. I agree with that for the first sentenc=
e
> in the section. But I believe that the second sentence that refers to the
> new O-bit and OAM behaviors defined in  draft-ietf-6man-spring-srv6-oam
> requires it to be moved into the Normative References section. Unless
> you'll decide to remove the section altogether.
>
> PC: The O-bit and OAM behaviors described in
> draft-ietf-6man-spring-srv6-oam are not required to understand or impleme=
nt
> the technology described in draft-ietf-spring-srv6-network-programming.
> However, they are relevant as to provide additional information to the
> reader. Why would it be a normative reference?
>
> GIM>> Ali and I are discussing several aspects of
> draft-ietf-6man-spring-srv6-oam. For example, the O-bit is applicable to
> any OAM operation or to some part of them. Note that OAM apparatus usuall=
y
> considered to include Fault Management and Performance Monitoring
> protocols. Both may operate as proactive or on-demand. Is the O-bit
> applicable to all OAM methods? Then, Fault Management OAM supports
> Continuity Check, Connectivity Verification and, for some networks,
> Automatic Protection Coordination. How O-bit is used in these methods? No=
w,
> to the Performance Monitoring OAM. I think that the O-bit can be only use=
d
> in dual-ended one-way PM OAM. How O-bit may be used in single-ended two-w=
ay
> PM OAM? Can the O-bit support the Loss Measurement? As you may see, there
> are many questions to discuss and clarify in the document. I can imagine
> that the result of our work on draft-ietf-6man-spring-srv6-oam may be
> somewhat different from its current form. How to ensure synchronization
> between SRv6 programming and OAM specifications?
>
>
>
> PC: The current reference in draft-ietf-spring-srv6-network-programming
> does not explain particular mechanisms of draft-ietf-6man-spring-srv6-oam=
.
> It only says that draft-ietf-6man-spring-srv6-oam defines OAM mechanisms
> for SRv6 as well as the O-bit. This is flexible enough as to be correct
> regardless of the changes that you make during the WGLC to
> draft-ietf-6man-spring-srv6-oam.
>
>
>
> Regards,
>
> Greg
>
>
>
> On Thu, Dec 5, 2019 at 9:15 AM <bruno.decraene@orange.com> wrote:
>
> Hello SPRING,
>
>
>
> This email starts a two weeks Working Group Last Call on draft-ietf-sprin=
g-srv6-network-programming [1].
>
>
>
> Please read this document if you haven't read the most recent version, an=
d send your comments to the SPRING WG list, no later than December 20.
>
>
>
> You may copy the 6MAN WG for IPv6 related comment, but consider not dupli=
cating emails on the 6MAN mailing list for the comments which are only spri=
ng specifics.
>
>
>
> If you are raising a point which you expect will be specifically debated =
on the mailing list, consider using a specific email/thread for this point.
>
> This may help avoiding that the thread become specific to this point and =
that other points get forgotten (or that the thread get converted into para=
llel independent discussions)
>
>
>
> Thank you,
>
> Bruno
>
>
>
> [1] https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programmin=
g-05
>
>
>
>
>
> _________________________________________________________________________=
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>
>
>
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>
> pas etre diffuses, exploites ou copies sans autorisation. Si vous avez re=
cu ce message par erreur, veuillez le signaler
>
> a l'expediteur et le detruire ainsi que les pieces jointes. Les messages =
electroniques etant susceptibles d'alteration,
>
> Orange decline toute responsabilite si ce message a ete altere, deforme o=
u falsifie. Merci.
>
>
>
> This message and its attachments may contain confidential or privileged i=
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>
> they should not be distributed, used or copied without authorisation.
>
> If you have received this email in error, please notify the sender and de=
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>
> As emails may be altered, Orange is not liable for messages that have bee=
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>
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>
> --------------------------------------------------------------------
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--0000000000006e9240059d187aa8
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div dir=3D"ltr">Hi Pablo,<div>thank you for your thoughtf=
ul consideration of my comments. Please find my new notes in-line below tag=
ged GIM&gt;&gt;.</div><div><br></div><div>Regards,</div><div>Greg</div></di=
v><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On T=
ue, Jan 21, 2020 at 11:08 PM Pablo Camarillo (pcamaril) &lt;<a href=3D"mail=
to:pcamaril@cisco.com">pcamaril@cisco.com</a>&gt; wrote:<br></div><blockquo=
te class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px =
solid rgb(204,204,204);padding-left:1ex">





<div lang=3D"en-ES">
<div class=3D"gmail-m_4709508110174724463WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US">Hi Greg,<u></u><u></u></span></=
p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Inline.<u></u><u></u></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks,<u></u><u></u></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Pablo.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(181,196,223);padding:3pt 0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><b><span style=3D"font-si=
ze:12pt;color:black">From:
</span></b><span style=3D"font-size:12pt;color:black">Greg Mirsky &lt;<a hr=
ef=3D"mailto:gregimirsky@gmail.com" target=3D"_blank">gregimirsky@gmail.com=
</a>&gt;<br>
<b>Date: </b>Sunday, 19 January 2020 at 20:28<br>
<b>To: </b>&quot;Pablo Camarillo (pcamaril)&quot; &lt;<a href=3D"mailto:pca=
maril@cisco.com" target=3D"_blank">pcamaril@cisco.com</a>&gt;<br>
<b>Cc: </b>&quot;<a href=3D"mailto:spring@ietf.org" target=3D"_blank">sprin=
g@ietf.org</a>&quot; &lt;<a href=3D"mailto:spring@ietf.org" target=3D"_blan=
k">spring@ietf.org</a>&gt;<br>
<b>Subject: </b>Re: WGLC - draft-ietf-spring-srv6-network-programming<u></u=
><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><u></u>=C2=A0<u></u></p>
</div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">Hi Pablo,<u></u><u></u></=
p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">thank you for sharing you=
r opinion. I understand that you believe=C2=A0that draft-ietf-6man-spring-s=
rv6-oam will not change and will be published with defining the O-flag as=
=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">=C2=A0 =C2=A0 =C2=A0 O-fl=
ag: OAM flag.=C2=A0 When set, it indicates that this packet is an<br>
=C2=A0 =C2=A0 =C2=A0 operations and management (OAM) packet.<u></u><u></u><=
/p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">I, on the other hand, am =
much less certain that that draft and SRv6 OAM, in general, require the spe=
cial flag in SRH. I believe that progressing the=C2=A0draft-ietf-spring-srv=
6-network-programming with the current
 text and the informative reference increases the=C2=A0likelihood=C2=A0that=
 an Errata must be filed one the SRv6 OAM draft is published.<u></u><u></u>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">PC: <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">I believe that we can trim the =
text in section 6.3 to avoid mentioning the O-bit without reducing the over=
all quality of the document.
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&lt;old&gt;<u></u><u></u></span=
></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10pt;font-family:&quot;Cour=
ier New&quot;;color:black">=C2=A0=C2=A0 [<a name=3D"m_4709508110174724463_r=
ef-I-D.ietf-6man-spring-srv6-oam">I-D.ietf-6man-spring-srv6-oam</a>] define=
s OAM behaviors for SRv6.=C2=A0 This<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10pt;font-family:&quot;Cour=
ier New&quot;;color:black">=C2=A0=C2=A0 includes the definition of the SRH =
Flag &#39;O-bit&#39;, as well as<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10pt;font-family:&quot;Cour=
ier New&quot;;color:black">=C2=A0=C2=A0 additional SR Endpoint behaviors fo=
r OAM purposes.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&lt;/old&gt;<u></u><u></u></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&lt;new&gt;<u></u><u></u></span=
></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10pt;font-family:&quot;Cour=
ier New&quot;;color:black">=C2=A0=C2=A0 [I-D.ietf-6man-spring-srv6-oam] def=
ines OAM behaviors for SRv6.=C2=A0 This<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10pt;font-family:&quot;Cour=
ier New&quot;;color:black">=C2=A0=C2=A0 includes the definition of
</span><span lang=3D"EN-US" style=3D"font-size:10pt;font-family:&quot;Couri=
er New&quot;;color:black">a</span><span style=3D"font-size:10pt;font-family=
:&quot;Courier New&quot;;color:black">dditional SR Endpoint behaviors for O=
AM purposes.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&lt;/new&gt;<u></u><u></u></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Do you agree with this change?<=
/span></p></div></div></div></div></blockquote><div>GIM&gt;&gt; I agree tha=
t the new text is more clear and less dependent on the discussion of=C2=A0I=
-D.ietf-6man-spring-srv6-oam. Though the &quot;OAM behaviors for SRv6&quot;=
 that are introduced in the draft, i.e., &quot;punt the packet&quot; and &q=
uot;punt the packet with a timestamp&quot;, are being discussed and may cha=
nge as the result of the discussion by 6man WG. Hence I think that it be be=
tter to not to reference=C2=A0

=C2=A0I-D.ietf-6man-spring-srv6-oam altogether.</div><blockquote class=3D"g=
mail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204=
,204,204);padding-left:1ex"><div lang=3D"en-ES"><div class=3D"gmail-m_47095=
08110174724463WordSection1"><div><div><p class=3D"MsoNormal"><span lang=3D"=
EN-US"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">And as we&#39;re discussi=
ng a sub-section in the Operation section, I&#39;ve got few questions on co=
unters, hope you don&#39;t mind:<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<u></u><span style=3D"font-size:10pt;font-family:Symbol"><span>=C2=B7<span =
style=3D"font:7pt &quot;Times New Roman&quot;">=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0
</span></span></span><u></u><span dir=3D"LTR"></span>As this is part of the=
 operational considerations, should there be any recommendation on the leng=
th of the counters?<u></u><u></u></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">PC: Counter length is implement=
ation dependent. The capabilities of different platforms have significant h=
airpin as to make any recommendation irrelevant.<u></u><u></u></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<u></u><span style=3D"font-size:10pt;font-family:Symbol"><span>=C2=B7<span =
style=3D"font:7pt &quot;Times New Roman&quot;">=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0
</span></span></span><u></u><span dir=3D"LTR"></span>Also, the usual drawba=
ck of detailed statistics to characterize a flow is scaling. Any considerat=
ion and recommendation on that?<u></u><u></u></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">PC: There is no per-flow statis=
tics. It is a counter per SRv6 SID. An SRv6 SID is shared among different f=
lows. No per-flow scaling is required.
<u></u><u></u></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<u></u><span style=3D"font-size:10pt;font-family:Symbol"><span>=C2=B7<span =
style=3D"font:7pt &quot;Times New Roman&quot;">=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0
</span></span></span><u></u><span dir=3D"LTR"></span>And last. I didn&#39;t=
 find any of these counters being discussed in=C2=A0draft-ietf-6man-spring-=
srv6-oam. Perhaps you can help me with a reference to the SRv6 document tha=
t uses them.<u></u><u></u></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">PC: The counters are required b=
y the controller. Its usage is out of the scope of this document.</span></p=
></div></div></div></div></blockquote><div>GIM&gt;&gt; I think that if SRv6=
 OAM was part of the network programming draft, then defining these counter=
s, that are, in my understanding, an integral part of SRv6 OAM, logical, in=
 the right place. But since SRv6 OAM is discussed in the draft of its own, =
I suggest considering moving Section 6.1 Counters to I-D.ietf-6man-spring-s=
rv6-oam.</div><div><br></div><blockquote class=3D"gmail_quote" style=3D"mar=
gin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1=
ex"><div lang=3D"en-ES"><div class=3D"gmail-m_4709508110174724463WordSectio=
n1"><div><div><p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u><u></u></s=
pan></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">Regards,<u></u><u></u></p=
>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">Greg<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><u></u>=C2=A0<u></u></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><u></u>=C2=A0<u></u></p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">On Mon, Jan 13, 2020 at 1=
0:23 AM Pablo Camarillo (pcamaril) &lt;<a href=3D"mailto:pcamaril@cisco.com=
" target=3D"_blank">pcamaril@cisco.com</a>&gt; wrote:<u></u><u></u></p>
</div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0cm 0cm 0cm 6pt;margin:5pt 0c=
m 5pt 4.8pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">
<span lang=3D"EN-GB">Hi Greg,</span><span lang=3D"EN-US"><u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">
<span lang=3D"EN-GB">=C2=A0</span><span lang=3D"EN-US"><u></u><u></u></span=
></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">
<span lang=3D"EN-GB">Inline.</span><span lang=3D"EN-US"><u></u><u></u></spa=
n></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">
<span lang=3D"EN-GB">=C2=A0</span><span lang=3D"EN-US"><u></u><u></u></span=
></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">
<span lang=3D"EN-GB">Thank you,</span><span lang=3D"EN-US"><u></u><u></u></=
span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">
<span lang=3D"EN-GB">Pablo.</span><span lang=3D"EN-US"><u></u><u></u></span=
></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">
<span lang=3D"EN-GB">=C2=A0</span><span lang=3D"EN-US"><u></u><u></u></span=
></p>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(181,196,223);padding:3pt 0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<b><span lang=3D"EN-US" style=3D"font-size:12pt;color:black">From: </span><=
/b><span lang=3D"EN-US" style=3D"font-size:12pt;color:black">Greg Mirsky &l=
t;</span><a href=3D"mailto:gregimirsky@gmail.com" target=3D"_blank"><span l=
ang=3D"EN-US" style=3D"font-size:12pt">gregimirsky@gmail.com</span></a><spa=
n lang=3D"EN-US" style=3D"font-size:12pt;color:black">&gt;<br>
<b>Date: </b>Sunday, 12 January 2020 at 04:01<br>
<b>To: </b></span><span lang=3D"EN-US" style=3D"font-size:12pt">=E2=80=9C<s=
pan style=3D"color:black">Pablo Camarillo (pcamaril)</span>=E2=80=9D<span s=
tyle=3D"color:black"> &lt;</span></span><a href=3D"mailto:pcamaril@cisco.co=
m" target=3D"_blank"><span lang=3D"EN-US" style=3D"font-size:12pt">pcamaril=
@cisco.com</span></a><span lang=3D"EN-US" style=3D"font-size:12pt;color:bla=
ck">&gt;<br>
<b>Cc: </b></span><span lang=3D"EN-US" style=3D"font-size:12pt">=E2=80=9C</=
span><a href=3D"mailto:spring@ietf.org" target=3D"_blank"><span lang=3D"EN-=
US" style=3D"font-size:12pt">spring@ietf.org</span></a><span lang=3D"EN-US"=
 style=3D"font-size:12pt">=E2=80=9D<span style=3D"color:black">
 &lt;</span></span><a href=3D"mailto:spring@ietf.org" target=3D"_blank"><sp=
an lang=3D"EN-US" style=3D"font-size:12pt">spring@ietf.org</span></a><span =
lang=3D"EN-US" style=3D"font-size:12pt;color:black">&gt;<br>
<b>Subject: </b>Re: WGLC </span><span lang=3D"EN-US" style=3D"font-size:12p=
t">=E2=80=93<span style=3D"color:black"> draft-ietf-spring-srv6-network-pro=
gramming</span></span><span lang=3D"EN-US"><u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
</div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">Hi Pablo, <u></u><u></u></span></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">thank you for your expedient response. Please find my =
new notes under GIM&gt;&gt; tag below in-line.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">Regards,<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">Greg<u></u><u></u></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">On Fri, Jan 10, 2020 at 1:09 PM Pablo Camarillo (pcama=
ril) &lt;</span><a href=3D"mailto:pcamaril@cisco.com" target=3D"_blank"><sp=
an lang=3D"EN-US">pcamaril@cisco.com</span></a><span lang=3D"EN-US">&gt; wr=
ote:<u></u><u></u></span></p>
</div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0cm 0cm 0cm 6pt;margin:5pt 0c=
m 5pt 4.8pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-GB">Hi Greg,</span><span lang=3D"EN-US"><u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-GB">=C2=A0</span><span lang=3D"EN-US"><u></u><u></u></span=
></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-GB">Inline.</span><span lang=3D"EN-US"><u></u><u></u></spa=
n></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-GB">=C2=A0</span><span lang=3D"EN-US"><u></u><u></u></span=
></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-GB">Thanks,</span><span lang=3D"EN-US"><u></u><u></u></spa=
n></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-GB">Pablo.</span><span lang=3D"EN-US"><u></u><u></u></span=
></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-GB">=C2=A0</span><span lang=3D"EN-US"><u></u><u></u></span=
></p>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(181,196,223);padding:3pt 0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:108pt">
<b><span lang=3D"EN-US" style=3D"font-size:12pt;color:black">From: </span><=
/b><span lang=3D"EN-US" style=3D"font-size:12pt;color:black">Greg Mirsky &l=
t;</span><a href=3D"mailto:gregimirsky@gmail.com" target=3D"_blank"><span l=
ang=3D"EN-US" style=3D"font-size:12pt">gregimirsky@gmail.com</span></a><spa=
n lang=3D"EN-US" style=3D"font-size:12pt;color:black">&gt;<br>
<b>Date: </b>Tuesday, 7 January 2020 at 21:01<br>
<b>To: </b>Bruno Decraene &lt;</span><a href=3D"mailto:bruno.decraene@orang=
e.com" target=3D"_blank"><span lang=3D"EN-US" style=3D"font-size:12pt">brun=
o.decraene@orange.com</span></a><span lang=3D"EN-US" style=3D"font-size:12p=
t;color:black">&gt;<br>
<b>Cc: </b>SPRING WG List &lt;</span><a href=3D"mailto:spring@ietf.org" tar=
get=3D"_blank"><span lang=3D"EN-US" style=3D"font-size:12pt">spring@ietf.or=
g</span></a><span lang=3D"EN-US" style=3D"font-size:12pt;color:black">&gt;,
</span><span lang=3D"EN-US" style=3D"font-size:12pt">=E2=80=9C</span><a hre=
f=3D"mailto:6man@ietf.org" target=3D"_blank"><span lang=3D"EN-US" style=3D"=
font-size:12pt">6man@ietf.org</span></a><span lang=3D"EN-US" style=3D"font-=
size:12pt">=E2=80=9D<span style=3D"color:black"> &lt;</span></span><a href=
=3D"mailto:6man@ietf.org" target=3D"_blank"><span lang=3D"EN-US" style=3D"f=
ont-size:12pt">6man@ietf.org</span></a><span lang=3D"EN-US" style=3D"font-s=
ize:12pt;color:black">&gt;,
 draft-ietf-spring-srv6-network-programming &lt;</span><a href=3D"mailto:dr=
aft-ietf-spring-srv6-network-programming@ietf.org" target=3D"_blank"><span =
lang=3D"EN-US" style=3D"font-size:12pt">draft-ietf-spring-srv6-network-prog=
ramming@ietf.org</span></a><span lang=3D"EN-US" style=3D"font-size:12pt;col=
or:black">&gt;<br>
<b>Subject: </b>Re: WGLC </span><span lang=3D"EN-US" style=3D"font-size:12p=
t">=E2=80=93<span style=3D"color:black"> draft-ietf-spring-srv6-network-pro=
gramming<br>
<b>Resent from: </b>&lt;</span></span><a href=3D"mailto:alias-bounces@ietf.=
org" target=3D"_blank"><span lang=3D"EN-US" style=3D"font-size:12pt">alias-=
bounces@ietf.org</span></a><span lang=3D"EN-US" style=3D"font-size:12pt;col=
or:black">&gt;<br>
<b>Resent to: </b>&lt;</span><a href=3D"mailto:cf@cisco.com" target=3D"_bla=
nk"><span lang=3D"EN-US" style=3D"font-size:12pt">cf@cisco.com</span></a><s=
pan lang=3D"EN-US" style=3D"font-size:12pt;color:black">&gt;, &lt;</span><a=
 href=3D"mailto:pcamaril@cisco.com" target=3D"_blank"><span lang=3D"EN-US" =
style=3D"font-size:12pt">pcamaril@cisco.com</span></a><span lang=3D"EN-US" =
style=3D"font-size:12pt;color:black">&gt;,
 &lt;</span><a href=3D"mailto:john@leddy.net" target=3D"_blank"><span lang=
=3D"EN-US" style=3D"font-size:12pt">john@leddy.net</span></a><span lang=3D"=
EN-US" style=3D"font-size:12pt;color:black">&gt;, &lt;</span><a href=3D"mai=
lto:daniel.voyer@bell.ca" target=3D"_blank"><span lang=3D"EN-US" style=3D"f=
ont-size:12pt">daniel.voyer@bell.ca</span></a><span lang=3D"EN-US" style=3D=
"font-size:12pt;color:black">&gt;,
 &lt;</span><a href=3D"mailto:satoru.matsushima@g.softbank.co.jp" target=3D=
"_blank"><span lang=3D"EN-US" style=3D"font-size:12pt">satoru.matsushima@g.=
softbank.co.jp</span></a><span lang=3D"EN-US" style=3D"font-size:12pt;color=
:black">&gt;, &lt;</span><a href=3D"mailto:lizhenbin@huawei.com" target=3D"=
_blank"><span lang=3D"EN-US" style=3D"font-size:12pt">lizhenbin@huawei.com<=
/span></a><span lang=3D"EN-US" style=3D"font-size:12pt;color:black">&gt;<br=
>
<b>Resent date: </b>Tuesday, 7 January 2020 at 21:01</span><span lang=3D"EN=
-US"><u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:108pt">
<span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:108pt">
<span lang=3D"EN-US">Dear Authors, WG Chairs, et al., <u></u><u></u></span>=
</p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:108pt">
<span lang=3D"EN-US">I hope I=E2=80=99m not too late with my comments and q=
uestions on the document. Please kindly consider them as WG LC comments:<u>=
</u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:144pt">
<span lang=3D"EN-US" style=3D"font-size:10pt;font-family:Symbol">=C2=B7</sp=
an><span lang=3D"EN-US" style=3D"font-size:7pt;font-family:&quot;Times New =
Roman&quot;,serif">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span><span lang=3D"EN-US">I have a question regarding the following pseud=
o-code:<u></u><u></u></span></p>
</div>
<blockquote style=3D"margin:5pt 0cm 5pt 30pt">
<div>
<p class=3D"MsoNormal" style=3D"margin-left:108pt">
<span lang=3D"EN-US">=C2=A0 S08. =C2=A0 Max_LE =3D (Hdr Ext Len / 2) =E2=80=
=93 1<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:108pt">
<span lang=3D"EN-US">=C2=A0 S09. =C2=A0 If ((Last Entry &gt; max_LE) or (Se=
gments Left &gt; (Last Entry+1)) {<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:108pt">
<span lang=3D"EN-US">=C2=A0 S10. =C2=A0 =C2=A0 =C2=A0Send an ICMP Parameter=
 Problem to the Source Address,<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:108pt">
<span lang=3D"EN-US">=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0Code 0 (Erroneous header field encountered),<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:108pt">
<span lang=3D"EN-US">=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0Pointer set to the Segments Left field.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:108pt">
<span lang=3D"EN-US">=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0Interrupt packet processing and discard the packet.<u></u><u></u></span>=
</p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:108pt">
<span lang=3D"EN-US">=C2=A0 S11. =C2=A0 }<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:108pt">
<span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:108pt">
<span lang=3D"EN-US">According to RFC 8200, Hdr Ext Len is the length of th=
e extension header in 8-octet units, not including the first 8 octets. Thus=
, as I understand, max_LE is the length in 8-octet units of half of the ext=
ension header less one. On the other
 hand, Last Entry and Segments Left are indices. Hence my question, What is=
 being compared in line S09 ( Last Entry &gt; max_LE)? Length and index? If=
 the goal is to use Hdr Ext Len to calculate the number of entries in the h=
eader, then what assumption is used
 in S08? Is it that the entry=E2=80=99s length is always and only 128 bits,=
 i.e. 16 octets? I believe that using such an assumption is too narrowing a=
nd limiting to SRH.<u></u><u></u></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">PC: This has already been discussed with Adrian. Pleas=
e check this thread:
</span><a href=3D"https://mailarchive.ietf.org/arch/msg/spring/IOA_4nlNPacD=
2v7Jue2dkGeOABk" target=3D"_blank"><span lang=3D"EN-US" style=3D"color:wind=
owtext;text-decoration:none">https://mailarchive.ietf.org/arch/msg/spring/I=
OA_4nlNPacD2v7Jue2dkGeOABk</span></a><span lang=3D"EN-US"><u></u><u></u></s=
pan></p>
</div>
</blockquote>
</div>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">GIM&gt;&gt; Thank you for the reference. In some aspec=
ts, part of my statement is repeating your answer to Adrain. The only lengt=
h on an element in SRH considered is 128 bits, the length of IPv6 address. =
I think that your explanation of how you
 have arrived at th following formula<u></u><u></u></span></p>
</div>
</div>
<blockquote style=3D"margin:5pt 0cm 5pt 30pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">=C2=A0 =C2=A0 S08. =C2=A0 Max_LE =3D (Hdr Ext Len / 2)=
 =E2=80=93 1=C2=A0 =C2=A0=C2=A0<u></u><u></u></span></p>
</div>
</div>
</blockquote>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">=C2=A0will benefit the document.=C2=A0<u></u><u></u></=
span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">My question to you and SPRING WG goes beyond this scen=
ario. Considering presented in Singapore Unified Identifier proposals (</sp=
an><a href=3D"https://datatracker.ietf.org/doc/draft-mirsky-6man-unified-id=
-sr/" target=3D"_blank"><span lang=3D"EN-US">draft-mirsky-6man-unified-id-s=
r</span></a><span lang=3D"EN-US">=C2=A0and=C2=A0</span><a href=3D"https://d=
atatracker.ietf.org/doc/draft-gmsm-bess-evpn-bfd/?include_text=3D1" target=
=3D"_blank"><span lang=3D"EN-US">draft-wmsaxw-6man-usid-id-use</span></a><s=
pan lang=3D"EN-US">),
 I believe other scenarios of using SRH, with elements of length other than=
 128 bits should be accommodated, e.g., 32 bits-long elements.<u></u><u></u=
></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">i.<u></u><u></u></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">
<span lang=3D"EN-US">PC: It is up to the draft-mirsky authors to standardiz=
e in their draft the changes to the SRH processing. As per today the draft-=
mirsky proposal is still an individual document.<u></u><u></u></span></p>
<div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0cm 0cm 0cm 6pt;margin:5pt 0c=
m 5pt 4.8pt">
<div>
<div>
<div>
<blockquote style=3D"margin:5pt 0cm 5pt 30pt">
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
</div>
</blockquote>
<p class=3D"MsoNormal" style=3D"margin-left:144pt">
<span lang=3D"EN-US" style=3D"font-size:10pt;font-family:Symbol">=C2=B7</sp=
an><span lang=3D"EN-US" style=3D"font-size:7pt;font-family:&quot;Times New =
Roman&quot;,serif">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span><span lang=3D"EN-US">Another question is to Section 6.3. What value =
do you see in this section? I&#39;ve noticed that draft-ietf-6man-spring-sr=
v6-oam is in the Informational References section. I agree with that for th=
e first sentence in the section. But I
 believe that the second sentence that refers to the new O-bit and OAM beha=
viors defined in=C2=A0 draft-ietf-6man-spring-srv6-oam requires it to be mo=
ved into the Normative References section. Unless you&#39;ll decide to remo=
ve the section altogether.<u></u><u></u></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">PC: The O-bit and OAM behaviors described in draft-iet=
f-6man-spring-srv6-oam are not required to understand or implement the tech=
nology described in draft-ietf-spring-srv6-network-programming. However, th=
ey are relevant as to provide additional
 information to the reader. Why would it be a normative reference?<u></u><u=
></u></span></p>
</div>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:72pt">
<span lang=3D"EN-US">GIM&gt;&gt; Ali and I are discussing several aspects o=
f draft-ietf-6man-spring-srv6-oam. For example, the O-bit is applicable to =
any OAM operation or to some part of them. Note that OAM apparatus usually =
considered to include Fault Management and
 Performance Monitoring protocols. Both may operate as proactive or on-dema=
nd. Is the O-bit applicable to all OAM methods? Then, Fault Management OAM =
supports Continuity Check, Connectivity Verification and, for some networks=
, Automatic Protection Coordination.
 How O-bit is used in these methods? Now, to the Performance Monitoring OAM=
. I think that the O-bit can be only used in dual-ended one-way PM OAM. How=
 O-bit may be used in single-ended two-way PM OAM? Can the O-bit support th=
e Loss Measurement? As you may see,
 there are many questions to discuss and clarify in the document. I can ima=
gine that the result of our work on draft-ietf-6man-spring-srv6-oam may be =
somewhat different from its current form. How to ensure synchronization bet=
ween SRv6 programming and OAM specifications?<u></u><u></u></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">
<span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">
<span lang=3D"EN-US">PC: The current reference in draft-ietf-spring-srv6-ne=
twork-programming does not explain particular mechanisms of draft-ietf-6man=
-spring-srv6-oam. It only says that draft-ietf-6man-spring-srv6-oam defines=
 OAM mechanisms for SRv6 as well as
 the O-bit. This is flexible enough as to be correct regardless of the chan=
ges that you make during the WGLC to draft-ietf-6man-spring-srv6-oam.<u></u=
><u></u></span></p>
</div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0cm 0cm 0cm 6pt;margin:5pt 0c=
m 5pt 4.8pt">
<div>
<div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:108pt">
<span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:108pt">
<span lang=3D"EN-US">Regards,<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:108pt">
<span lang=3D"EN-US">Greg<u></u><u></u></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:108pt">
<span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:108pt">
<span lang=3D"EN-US">On Thu, Dec 5, 2019 at 9:15 AM &lt;</span><a href=3D"m=
ailto:bruno.decraene@orange.com" target=3D"_blank"><span lang=3D"EN-US">bru=
no.decraene@orange.com</span></a><span lang=3D"EN-US">&gt; wrote:<u></u><u>=
</u></span></p>
</div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0cm 0cm 0cm 6pt;margin:5pt 0c=
m 5pt 4.8pt">
<div>
<div>
<pre style=3D"margin-left:108pt"><span lang=3D"EN-US">Hello SPRING,<u></u><=
u></u></span></pre>
<pre style=3D"margin-left:108pt"><span lang=3D"EN-US">=C2=A0<u></u><u></u><=
/span></pre>
<pre style=3D"margin-left:108pt"><span lang=3D"EN-US">This email starts a t=
wo weeks Working Group Last Call on draft-ietf-spring-srv6-network-programm=
ing [1].<u></u><u></u></span></pre>
<pre style=3D"margin-left:108pt"><span lang=3D"EN-US">=C2=A0<u></u><u></u><=
/span></pre>
<pre style=3D"margin-left:108pt"><span lang=3D"EN-US">Please read this docu=
ment if you haven&#39;t read the most recent version, and send your comment=
s to the SPRING WG list, no later than December 20.<u></u><u></u></span></p=
re>
<pre style=3D"margin-left:108pt"><span lang=3D"EN-US">=C2=A0<u></u><u></u><=
/span></pre>
<pre style=3D"margin-left:108pt"><span lang=3D"EN-US">You may copy the 6MAN=
 WG for IPv6 related comment, but consider not duplicating emails on the 6M=
AN mailing list for the comments which are only spring specifics.<u></u><u>=
</u></span></pre>
<pre style=3D"margin-left:108pt"><span lang=3D"EN-US">=C2=A0<u></u><u></u><=
/span></pre>
<pre style=3D"margin-left:108pt"><span lang=3D"EN-US">If you are raising a =
point which you expect will be specifically debated on the mailing list, co=
nsider using a specific email/thread for this point.<u></u><u></u></span></=
pre>
<pre style=3D"margin-left:108pt"><span lang=3D"EN-US">This may help avoidin=
g that the thread become specific to this point and that other points get f=
orgotten (or that the thread get converted into parallel independent discus=
sions)<u></u><u></u></span></pre>
<pre style=3D"margin-left:108pt"><span lang=3D"EN-US">=C2=A0<u></u><u></u><=
/span></pre>
<pre style=3D"margin-left:108pt"><span lang=3D"EN-US">Thank you,<u></u><u><=
/u></span></pre>
<pre style=3D"margin-left:108pt"><span lang=3D"EN-US">Bruno<u></u><u></u></=
span></pre>
<pre style=3D"margin-left:108pt"><span lang=3D"EN-US">=C2=A0<u></u><u></u><=
/span></pre>
<pre style=3D"margin-left:108pt"><span lang=3D"EN-US">[1] </span><a href=3D=
"https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-05"=
 target=3D"_blank"><span lang=3D"EN-US">https://tools.ietf.org/html/draft-i=
etf-spring-srv6-network-programming-05</span></a><span lang=3D"EN-US"><u></=
u><u></u></span></pre>
<pre style=3D"margin-left:108pt"><span lang=3D"EN-US">=C2=A0<u></u><u></u><=
/span></pre>
<p class=3D"MsoNormal" style=3D"margin-left:108pt">
<span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
</div>
<pre style=3D"margin-left:108pt"><span lang=3D"FR">________________________=
___________________________________________________________________________=
______________________</span><span lang=3D"EN-US"><u></u><u></u></span></pr=
e>
<pre style=3D"margin-left:108pt"><span lang=3D"FR">=C2=A0</span><span lang=
=3D"EN-US"><u></u><u></u></span></pre>
<pre style=3D"margin-left:108pt"><span lang=3D"FR">Ce message et ses pieces=
 jointes peuvent contenir des informations confidentielles ou privilegiees =
et ne doivent donc</span><span lang=3D"EN-US"><u></u><u></u></span></pre>
<pre style=3D"margin-left:108pt"><span lang=3D"FR">pas etre diffuses, explo=
ites ou copies sans autorisation. Si vous avez recu ce message par erreur, =
veuillez le signaler</span><span lang=3D"ES"><u></u><u></u></span></pre>
<pre style=3D"margin-left:108pt"><span lang=3D"FR">a l&#39;expediteur et le=
 detruire ainsi que les pieces jointes. Les messages electroniques etant su=
sceptibles d&#39;alteration,<u></u><u></u></span></pre>
<pre style=3D"margin-left:108pt"><span lang=3D"FR">Orange decline toute res=
ponsabilite si ce message a ete altere, deforme ou falsifie. Merci.<u></u><=
u></u></span></pre>
<pre style=3D"margin-left:108pt"><span lang=3D"FR">=C2=A0<u></u><u></u></sp=
an></pre>
<pre style=3D"margin-left:108pt"><span lang=3D"FR">This message and its att=
achments may contain confidential or privileged information that may be pro=
tected by law;</span><span lang=3D"EN-US"><u></u><u></u></span></pre>
<pre style=3D"margin-left:108pt"><span lang=3D"FR">they should not be distr=
ibuted, used or copied without authorisation.</span><span lang=3D"EN-US"><u=
></u><u></u></span></pre>
<pre style=3D"margin-left:108pt"><span lang=3D"FR">If you have received thi=
s email in error, please notify the sender and delete this message and its =
attachments.</span><span lang=3D"EN-US"><u></u><u></u></span></pre>
<pre style=3D"margin-left:108pt"><span lang=3D"FR">As emails may be altered=
, Orange is not liable for messages that have been modified, changed or fal=
sified.</span><span lang=3D"EN-US"><u></u><u></u></span></pre>
<pre style=3D"margin-left:108pt"><span lang=3D"FR">Thank you.</span><span l=
ang=3D"EN-US"><u></u><u></u></span></pre>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:108pt">
<span lang=3D"EN-US">------------------------------------------------------=
--------------<br>
IETF IPv6 working group mailing list<br>
</span><a href=3D"mailto:ipv6@ietf.org" target=3D"_blank"><span lang=3D"EN-=
US">ipv6@ietf.org</span></a><span lang=3D"EN-US"><br>
Administrative Requests: </span><a href=3D"https://www.ietf.org/mailman/lis=
tinfo/ipv6" target=3D"_blank"><span lang=3D"EN-US">https://www.ietf.org/mai=
lman/listinfo/ipv6</span></a><span lang=3D"EN-US"><br>
--------------------------------------------------------------------<u></u>=
<u></u></span></p>
</blockquote>
</div>
</div>
</div>
</blockquote>
</div>
</div>
</div>
</div>
</blockquote>
</div>
</div>
</div>
</div>

</blockquote></div></div>

--0000000000006e9240059d187aa8--


From nobody Fri Jan 31 07:50:36 2020
Return-Path: <maho@lab.dtag.de>
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From: Martin Horneffer <maho@lab.dtag.de>
To: SPRING WG List <spring@ietf.org>
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Subject: [spring] Question on RFC8660
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Hello everyone,

again it seems the interesting questions only show up when applying 
something to the live network...

We ran into something that poses a question related to RFC8660: What is 
the exact meaning of section 2.10.1, "Forwarding for PUSH and CONTINUE 
of Global SIDs", when the chosen neighbor doesn't provide a valid MPLS path?

The relevant sections reads:

       -  Else, if there are other usable next hops, use them to forward
          the incoming packet.  The method by which the router "R0"
          decides on the possibility of using other next hops is beyond
          the scope of this document.  For example, the MCC on "R0" may
          chose the send an IPv4 packet without pushing any label to
          another next hop.

Does the part "send an IPv4 packet without pushing any label" apply to 
PUSH and CONTINUE, or just to PUSH?
Does R0 have to validate that neighbor N can correctly process to 
packet? Or can it forward the packet regardless?

The reason for asking is that we are now seeing issues similar to ones 
we had when starting with LDP based MPLS about two decades ago: traffic 
being black holed even though a path to the destination exists, because 
the MPLS path is interrupted somewhere in the middle.

With LDP we know the case of LFIBentries called "unlabelled". While this 
does break connectivity for many kinds of service, e.g. those relying on 
an additional service labels, it still works for plain IP(v4) traffic. 
In our cases, this works perfectly fine for all internal routing and 
control traffic. And even for IPv4 traffic that gets collected by a 
central router that injects a default route.

However, depending on the exact interpretation of the above paragraph, 
an implementor might feel obliged to chose the next paragraph:

       -  Otherwise, drop the packet.

Which is, at least in our case, very unfortunate...

Any advice or opinion appreciated!


Best regards, Martin





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Subject: [spring] Updates to draft-gandhi-spring-twamp-srpm-05.txt
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--00000000000063493d059d7649f1
Content-Type: text/plain; charset="UTF-8"
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Hi WG,
We have posted a revised draft with the following updates:

   - Added control-code field (similar to RFC 6374)
   - Added Node-Address TLV (e.g. destination-address) =E2=80=93 to carry t=
he
   intended recipient of the probe query when using 127/8 address
   - Added Return Address in the Return Path TLV =E2=80=93 to send reply to=
 other
   than source-address
   - Added SR Policy with different endpoint addresses
   - Various editorial changes



Welcome your review comments and suggestions.

Thanks,

Rakesh (on behalf of authors)


=EF=BB=BFOn 2019-12-05, 1:48 PM, "internet-drafts@ietf.org"
<internet-drafts@ietf.org> wrote:



    A new version of I-D, draft-gandhi-spring-twamp-srpm-05.txt

    has been successfully submitted by Rakesh Gandhi and posted to the

    IETF repository.



    Name:                              draft-gandhi-spring-twamp-srpm

    Revision:          05

    Title:                  Performance Measurement Using TWAMP Light for
Segment Routing Networks

    Document date:           2019-12-05

    Group:                              Individual Submission

    Pages:                               30

    URL:
https://www.ietf.org/internet-drafts/draft-gandhi-spring-twamp-srpm-05.txt

    Status:
https://datatracker.ietf.org/doc/draft-gandhi-spring-twamp-srpm/

    Htmlized:
https://tools.ietf.org/html/draft-gandhi-spring-twamp-srpm-05

    Htmlized:
https://datatracker.ietf.org/doc/html/draft-gandhi-spring-twamp-srpm

    Diff:
https://www.ietf.org/rfcdiff?url2=3Ddraft-gandhi-spring-twamp-srpm-05



    Abstract:

       Segment Routing (SR) leverages the source routing paradigm.  SR is

       applicable to both Multiprotocol Label Switching (SR-MPLS) and IPv6

       (SRv6) data planes.  This document specifies procedure for sending

       and processing probe query and response messages for Performance

       Measurement (PM) in Segment Routing networks.  The procedure uses th=
e

       mechanisms defined in RFC 5357 (Two-Way Active Measurement Protocol

       (TWAMP) Light) and Simple Two-Way Active Measurement Protocol (STAMP=
)

       for Delay Measurement, and also uses the mechanisms defined in this

       document for Loss Measurement.  The procedure specified is applicabl=
e

       to SR-MPLS and SRv6 data planes and are used for both links and

       end-to-end SR Policies.



    Please note that it may take a couple of minutes from the time of
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    until the htmlized version and diff are available at tools.ietf.org.



    The IETF Secretariat

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<div dir=3D"ltr"><div><span style=3D"font-family:verdana,sans-serif"><font =
size=3D"2">Hi WG,</font></span></div><div><span style=3D"font-family:verdan=
a,sans-serif"><font size=3D"2">We have posted a revised draft with the foll=
owing updates:</font></span></div><div>




















<ul style=3D"margin-top:0cm;margin-bottom:0cm" type=3D"disc"><li class=3D"g=
mail-MsoListParagraph" style=3D"margin:0cm 0cm 0.0001pt"><span style=3D"fon=
t-family:verdana,sans-serif"><font size=3D"2"><span>Added control-code fiel=
d (similar to RFC 6374)<span></span></span></font></span></li><li class=3D"=
gmail-MsoListParagraph" style=3D"margin:0cm 0cm 0.0001pt"><span style=3D"fo=
nt-family:verdana,sans-serif"><font size=3D"2"><span>Added Node-Address TLV=
 (e.g. destination-address)
     =E2=80=93 to carry the intended recipient of the probe query when usin=
g 127/8
     address<span></span></span></font></span></li><li class=3D"gmail-MsoLi=
stParagraph" style=3D"margin:0cm 0cm 0.0001pt"><span style=3D"font-family:v=
erdana,sans-serif"><font size=3D"2"><span>Added Return Address in the Retur=
n Path TLV =E2=80=93 to
     send reply to other than source-address</span></font></span></li><li c=
lass=3D"gmail-MsoListParagraph" style=3D"margin:0cm 0cm 0.0001pt"><span sty=
le=3D"font-family:verdana,sans-serif"><font size=3D"2"><span>Added SR Polic=
y with different endpoint addresses<br></span></font></span></li><li class=
=3D"gmail-MsoListParagraph" style=3D"margin:0cm 0cm 0.0001pt"><span style=
=3D"font-family:verdana,sans-serif"><font size=3D"2"><span>Various editoria=
l changes<span></span></span></font></span></li></ul>

<p class=3D"MsoNormal" style=3D"margin:0cm 0cm 0.0001pt"><span style=3D"fon=
t-family:verdana,sans-serif"><font size=3D"2"><span><span>=C2=A0</span></sp=
an></font></span></p>

<p class=3D"MsoNormal" style=3D"margin:0cm 0cm 0.0001pt"><span style=3D"fon=
t-family:verdana,sans-serif"><font size=3D"2"><span><span>Welcome your revi=
ew comments and suggestions.</span></span></font></span></p><p class=3D"Mso=
Normal" style=3D"margin:0cm 0cm 0.0001pt"><span style=3D"font-family:verdan=
a,sans-serif"><font size=3D"2"><span><span>Thanks,</span></span></font></sp=
an></p><p class=3D"MsoNormal" style=3D"margin:0cm 0cm 0.0001pt"><span style=
=3D"font-family:verdana,sans-serif"><font size=3D"2"><span><span>Rakesh (on=
 behalf of authors)<br></span></span></font></span></p>





</div><div><br></div><div>


















<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><br></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><a name=3D"_MailOriginal">=
=EF=BB=BFOn 2019-12-05, 1:48 PM,
&quot;internet-drafts@ietf.org&quot; &lt;internet-drafts@ietf.org&gt; wrote=
:<span></span></a></p><p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0=
cm 0.0001pt;font-size:11pt;font-family:&quot;Calibri&quot;,sans-serif"><spa=
n><span>=C2=A0=C2=A0=C2=A0 </span><span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0 </span>A new version of I-D,
draft-gandhi-spring-twamp-srpm-05.txt<span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0 </span>has been successfully submitted by Rakesh
Gandhi and posted to the<span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0 </span>IETF repository.<span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0 </span><span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0 </span>Name:<span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span>draft-gandhi-spr=
ing-twamp-srpm<span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0 </span>Revision:<span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0 </span>05<span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0 </span>Title:<span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span>Performance
Measurement Using TWAMP Light for Segment Routing Networks<span></span></sp=
an></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0 </span>Document date:<span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0 </span>2019-12-05<span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0 </span>Group:<span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span>Individual
Submission<span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0 </span>Pages:<span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span>30<span></=
span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0 </span>URL:<span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0
</span><a href=3D"https://www.ietf.org/internet-drafts/draft-gandhi-spring-=
twamp-srpm-05.txt">https://www.ietf.org/internet-drafts/draft-gandhi-spring=
-twamp-srpm-05.txt</a><span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0 </span>Status:<span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span><a href=3D"https://datatracker.ietf.org/doc/draft-gandhi-spring-twam=
p-srpm/">https://datatracker.ietf.org/doc/draft-gandhi-spring-twamp-srpm/</=
a><span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0 </span>Htmlized: <span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0</span><a=
 href=3D"https://tools.ietf.org/html/draft-gandhi-spring-twamp-srpm-05">htt=
ps://tools.ietf.org/html/draft-gandhi-spring-twamp-srpm-05</a><span></span>=
</span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0 </span>Htmlized:<span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span><a href=3D"https://datatracker.ietf.org/doc/html/draft-gandhi-spring=
-twamp-srpm">https://datatracker.ietf.org/doc/html/draft-gandhi-spring-twam=
p-srpm</a><span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0 </span>Diff:<span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0
</span><a href=3D"https://www.ietf.org/rfcdiff?url2=3Ddraft-gandhi-spring-t=
wamp-srpm-05">https://www.ietf.org/rfcdiff?url2=3Ddraft-gandhi-spring-twamp=
-srpm-05</a><span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0 </span><span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0 </span>Abstract:<span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0 </span>Segment Routing (SR) leverages the
source routing paradigm.<span>=C2=A0 </span>SR is<span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0 </span>applicable to both Multiprotocol Label
Switching (SR-MPLS) and IPv6<span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0 </span>(SRv6) data planes.<span>=C2=A0 </span>This=
 document specifies procedure for sending<span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0 </span>and processing probe query and response
messages for Performance<span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0 </span>Measurement (PM) in Segment Routing
networks.<span>=C2=A0 </span>The procedure uses the<span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0 </span>mechanisms defined in RFC 5357 (Two-Way
Active Measurement Protocol<span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0 </span>(TWAMP) Light) and Simple Two-Way Active
Measurement Protocol (STAMP)<span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0 </span>for Delay Measurement, and also uses the
mechanisms defined in this<span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0 </span>document for Loss Measurement.<span>=C2=A0 =
</span>The procedure specified is applicable<span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0 </span>to SR-MPLS and SRv6 data planes and are
used for both links and<span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0 </span>end-to-end SR Policies.<span></span></span>=
</p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0 </span><span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0 </span>Please note that it may take a couple of
minutes from the time of submission<span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0 </span>until the htmlized version and diff are
available at <a href=3D"http://tools.ietf.org">tools.ietf.org</a>.<span></s=
pan></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0 </span><span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0 </span>The IETF Secretariat<span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0 </span><span></span></span></p>

<p class=3D"gmail-MsoPlainText" style=3D"margin:0cm 0cm 0.0001pt;font-size:=
11pt;font-family:&quot;Calibri&quot;,sans-serif"><span><span>=C2=A0=C2=A0=
=C2=A0 </span></span><span></span></p>





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