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Subject: [spring] spring - Requested session has been scheduled for IETF 104
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Dear Bruno Decraene,

The session(s) that you have requested have been scheduled.
Below is the scheduled session information followed by
the original request. 


    spring Session 1 (2:00 requested)
    Thursday, 28 March 2019, Afternoon Session I 1350-1550
    Room Name: Congress Hall 2 size: 350
    ---------------------------------------------


iCalendar: https://datatracker.ietf.org/meeting/104/sessions/spring.ics

Request Information:


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

Number of Sessions: 1
Length of Session(s):  2 Hours
Number of Attendees: 120
Conflicts to Avoid: 
 First Priority: mpls lsr 6man
 Second Priority: idr sfc pce
 Third Priority: detnet teas


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

Resources Requested:

Special Requests:
  Could you please schedule during the afternoon, to ease remote participation from one chair.
One chair will remotely attend via meetecho. Not sure whether this requires something special.
Thank you.
---------------------------------------------------------


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From: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
To: Peter Psenak <ppsenak@cisco.com>
CC: "lsr@ietf.org" <lsr@ietf.org>, "spring@ietf.org" <spring@ietf.org>, "draft-ietf-isis-segment-routing-extensions.all@ietf.org" <draft-ietf-isis-segment-routing-extensions.all@ietf.org>
Thread-Topic: [spring] FlexAlgo and Global Adj-SIDs
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/vby_MH5a8lszTbzUqvsiurGg9ZI>
Subject: Re: [spring] FlexAlgo and Global Adj-SIDs
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Peter,
Lots of thanks for a prompt and hivhly informative response.

It seems that per-FlexAlgo Adj-SIDs can be useful even if they are local.
The relevant use case could be a protected local Adj-SID that is used in a=
 SR-TE LSP that has been set up with some constraints in mind. These const=
raints would be preserved when the protected adjacency in question is UP, =
but could be violated when it fails and the shortest path to the node at t=
he remote end of adjacency is used.

Local protected Adj-SIDs for sure have bern implemented, so this looks lik=
e a more relevant use case than global adjacencies to me.

What do you think?

Regards, and lots of thanks in advance,

Thumb typed by Sasha Vainshtein

________________________________
From: Peter Psenak <ppsenak@cisco.com>
Sent: Thursday, February 28, 2019 9:56:49 PM
To: Alexander Vainshtein; draft-ietf-isis-segment-routing-extensions@ietf.=
org
Cc: lsr@ietf.org; spring@ietf.org
Subject: Re: [spring] FlexAlgo and Global Adj-SIDs

Hi Alexander,

On 28/02/2019 19:19 , Alexander Vainshtein wrote:
> Dear colleagues,
>
> I have a question regarding global Adj-SIDs in
> draft-ietf-isis-segment-routing-extensions.
>
>
>
> Section 3.4 of RFC 8402 <https://tools.ietf.org/html/rfc8402>  defines
> definition and handling of global Adj-SIDs.
>
> The relevant text is given below:
>
>
>
> <quote>
>
>    Similarly, when using a global Adj-SID, a packet injected anywhere
>
>    within the SR domain with a segment list {SNL}, where SNL is a global=

>
>    Adj-SID attached by node N to its adjacency over link L, will be
>
>    forwarded along the shortest path to Nand then be switched by N,
>
>    without any IP shortest-path consideration, towards link L.
>
> ...
>
>    The use of global Adj-SID allows to reduce the size of the segment li=
st
>
>    When expressing a path at the cost of additional state (i.e., the glo=
bal
>
>    Adj-SID will be inserted by all routers within the area in their
>
>    forwarding table).
>
> <end quote>
>
>
>
> The definition of the Adjacency Segment Identifier=20Sub-TLV in Section
> 2.2.1 of the draft matches the behavior defined in RFC 8402, i.e., it
> allows advertisement of global Adj-SIDs.
>
> These advertisements can be associated with a specific IGP adjacency
> and, in multi-topology scenarios, a specific topology. But it is not
> associated with any specific algorithm since the default algorithm for
> reaching the advertising node is implicitly assumed in full alignment
> with RFC 8402.
>
>
>
> My question is about the situation in which multiple algorithms are
> supported by the routers in the SR domain, so that each node advertises
> a dedicated Node SID for each of these algorithm.
>
> In this scenario, the operator can set up a SR-TE LSP that meets
> specific constraints (incorporated in one of these algorithms, see IGP
> Flexible Algorithm
> <https://tools.ietf.org/html/draft-ietf-lsr-flex-algo-01> draft) by
> using Node SIDs that have been advertised with the corresponding
> algorithm and local Adj-SIDs. However, global Adj-SIDs cannot be used
> (e.g.,=20for reducing the label stack depth) in this situation.
>
> I wonder if the possibility to advertise global Adj-SID (that can be
> considered as replacing a combination of the Node SID of the advertising=

> node and one of its local Adj-SIDs) as associated with a specific
> algorithm has ever been considered?

to be honest, it has been not.

The usage of the global Adj-SID has not been widely considered due to
the additional forwarding entries it requires on rest of the routers in
the area. Not sure if there are implementations of the global ADj-SID
out there.

If you believe this is important, we can certainly addressed that in a
small draft.

thanks,
Peter




>
>
>
> Regards, and lots of thanks in advance,
>
> Sasha
>
>
>
> Office: +972-39266302
>
> Cell:      +972-549266302
>
> Email:   Alexander.Vainshtein@ecitele.com
>
>
>
>
> ________________________________________________________________________=
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<div dir=3D"auto" style=3D"direction:ltr; margin:0; padding:0; font-family=
:sans-serif; font-size:11pt; color:black">
Peter,<br>
</div>
<div dir=3D"auto" style=3D"direction:ltr; margin:0; padding:0; font-family=
:sans-serif; font-size:11pt; color:black">
Lots of thanks for a prompt and hivhly informative response.<br>
<br>
</div>
<div dir=3D"auto" style=3D"direction:ltr; margin:0; padding:0; font-family=
:sans-serif; font-size:11pt; color:black">
It seems that per-FlexAlgo Adj-SIDs can be useful even if they are local.<=
br>
</div>
<div dir=3D"auto" style=3D"direction:ltr; margin:0; padding:0; font-family=
:sans-serif; font-size:11pt; color:black">
The relevant use case could be a protected local Adj-SID that is used in a=
 SR-TE LSP that has been set up with some constraints in mind. These const=
raints would be preserved when the protected adjacency in question is UP, =
but could be violated when it fails
 and the shortest path to the node at the remote end of adjacency is used.=
 <br>
<br>
</div>
<div dir=3D"auto" style=3D"direction:ltr; margin:0; padding:0; font-family=
:sans-serif; font-size:11pt; color:black">
Local protected Adj-SIDs for sure have bern implemented, so this looks lik=
e a more relevant use case than global adjacencies to me.<br>
<br>
</div>
<div dir=3D"auto" style=3D"direction:ltr; margin:0; padding:0; font-family=
:sans-serif; font-size:11pt; color:black">
What do you think?<br>
<br>
</div>
<div dir=3D"auto" style=3D"direction:ltr; margin:0; padding:0; font-family=
:sans-serif; font-size:11pt; color:black">
Regards, and lots of thanks in advance,<br>
<br>
</div>
<div dir=3D"auto" style=3D"direction:ltr; margin:0; padding:0; font-family=
:sans-serif; font-size:11pt; color:black">
<div dir=3D"auto" style=3D"direction:ltr; margin:0; padding:0; font-family=
:sans-serif; font-size:11pt; color:black">
Thumb typed by Sasha Vainshtein</div>
<br>
</div>
<hr tabindex=3D"-1" style=3D"display:inline-block; width:98%">
<div id=3D"x_divRplyFwdMsg" dir=3D"ltr"><font face=3D"Calibri, sans-serif"=
 color=3D"#000000" style=3D"font-size:11pt"><b>From:</b> Peter Psenak &lt;=
ppsenak@cisco.com&gt;<br>
<b>Sent:</b> Thursday, February 28, 2019 9:56:49 PM<br>
<b>To:</b> Alexander Vainshtein; draft-ietf-isis-segment-routing-extension=
s@ietf.org<br>
<b>Cc:</b> lsr@ietf.org; spring@ietf.org<br>
<b>Subject:</b> Re: [spring] FlexAlgo and Global Adj-SIDs</font>
<div>&nbsp;</div>
</div>
</div>
<font size=3D"2"><span style=3D"font-size:11pt;">
<div class=3D"PlainText">Hi Alexander,<br>
<br>
On 28/02/2019 19:19 , Alexander Vainshtein wrote:<br>
&gt; Dear colleagues,<br>
&gt;<br>
&gt; I have a question regarding global Adj-SIDs in<br>
&gt; draft-ietf-isis-segment-routing-extensions.<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; Section 3.4 of RFC 8402 &lt;<a href=3D"https://tools.ietf.org/html/rf=
c8402">https://tools.ietf.org/html/rfc8402</a>&gt;&nbsp; defines<br>
&gt; definition and handling of global Adj-SIDs.<br>
&gt;<br>
&gt; The relevant text is given below:<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; &lt;quote&gt;<br>
&gt;<br>
&gt;&nbsp;&nbsp;&nbsp; Similarly, when using a global Adj-SID, a packet in=
jected anywhere<br>
&gt;<br>
&gt;&nbsp;&nbsp;&nbsp; within the SR domain with a segment list {SNL}, whe=
re SNL is a global<br>
&gt;<br>
&gt;&nbsp;&nbsp;&nbsp; Adj-SID attached by node N to its adjacency over li=
nk L, will be<br>
&gt;<br>
&gt;&nbsp;&nbsp;&nbsp; forwarded along the shortest path to Nand then be s=
witched by N,<br>
&gt;<br>
&gt;&nbsp;&nbsp;&nbsp; without any IP shortest-path consideration, towards=
 link L.<br>
&gt;<br>
&gt; ...<br>
&gt;<br>
&gt;&nbsp;&nbsp;&nbsp; The use of global Adj-SID allows to reduce the size=
 of the segment list<br>
&gt;<br>
&gt;&nbsp;&nbsp;&nbsp; When expressing a path at the cost of additional st=
ate (i.e., the global<br>
&gt;<br>
&gt;&nbsp;&nbsp;&nbsp; Adj-SID will be inserted by all routers within the =
area in their<br>
&gt;<br>
&gt;&nbsp;&nbsp;&nbsp; forwarding table).<br>
&gt;<br>
&gt; &lt;end quote&gt;<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; The definition of the Adjacency Segment Identifier Sub-TLV in Section=
<br>
&gt; 2.2.1 of the draft matches the behavior defined in RFC 8402, i.e., it=
<br>
&gt; allows advertisement of global Adj-SIDs.<br>
&gt;<br>
&gt; These advertisements can be associated with a specific IGP adjacency<=
br>
&gt; and, in multi-topology scenarios, a specific topology. But it is not<=
br>
&gt; associated with any specific algorithm since the default algorithm fo=
r<br>
&gt; reaching the advertising node is implicitly assumed in full alignment=
<br>
&gt; with RFC 8402.<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; My question is about the situation in which multiple algorithms are<b=
r>
&gt; supported by the routers in the SR domain, so that each node advertis=
es<br>
&gt; a dedicated Node SID for each of these algorithm.<br>
&gt;<br>
&gt; In this scenario, the operator can set up a SR-TE LSP that meets<br>
&gt; specific constraints (incorporated in one of these algorithms, see IG=
P<br>
&gt; Flexible Algorithm<br>
&gt; &lt;<a href=3D"https://tools.ietf.org/html/draft-ietf-lsr-flex-algo-0=
1">https://tools.ietf.org/html/draft-ietf-lsr-flex-algo-01</a>&gt; draft) =
by<br>
&gt; using Node SIDs that have been advertised with the corresponding<br>
&gt; algorithm and local Adj-SIDs. However, global Adj-SIDs cannot be used=
<br>
&gt; (e.g., for reducing the label stack depth) in this situation.<br>
&gt;<br>
&gt; I wonder if the possibility to advertise global Adj-SID (that can be<=
br>
&gt; considered as replacing a combination of the Node SID of the advertis=
ing<br>
&gt; node and one of its local Adj-SIDs) as associated with a specific<br>=

&gt; algorithm has ever been considered?<br>
<br>
to be honest, it has been not.<br>
<br>
The usage of the global Adj-SID has not been widely considered due to <br>=

the additional forwarding entries it requires on rest of the routers in <b=
r>
the area. Not sure if there are implementations of the global ADj-SID <br>=

out there.<br>
<br>
If you believe this is important, we can certainly addressed that in a <br=
>
small draft.<br>
<br>
thanks,<br>
Peter<br>
<br>
<br>
<br>
<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; Regards, and lots of thanks in advance,<br>
&gt;<br>
&gt; Sasha<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; Office: &#43;972-39266302<br>
&gt;<br>
&gt; Cell:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#43;972-549266302<br>
&gt;<br>
&gt; Email:&nbsp;&nbsp; Alexander.Vainshtein@ecitele.com<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; _____________________________________________________________________=
______<br>
&gt;<br>
&gt; This e-mail message is intended for the recipient only and contains<b=
r>
&gt; information which is<br>
&gt; CONFIDENTIAL and which may be proprietary to ECI Telecom. If you have=
<br>
&gt; received this<br>
&gt; transmission in error, please inform us by e-mail, phone or fax, and<=
br>
&gt; then delete the original<br>
&gt; and all copies thereof.<br>
&gt; _____________________________________________________________________=
______<br>
&gt;<br>
&gt;<br>
&gt; _______________________________________________<br>
&gt; spring mailing list<br>
&gt; spring@ietf.org<br>
&gt; <a href=3D"https://www.ietf.org/mailman/listinfo/spring">https://www.=
ietf.org/mailman/listinfo/spring</a><br>
&gt;<br>
<br>
</div>
</span></font>
<br clear=3D"both">
__________________________________________________________________________=
_<BR>
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This e-mail message is intended for the recipient only and contains inform=
ation which is <BR>
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From nobody Sun Mar  3 02:31:02 2019
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To: "spring@ietf.org" <spring@ietf.org>
Cc: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>, Matsushima Satoru <satoru.matsushima@g.softbank.co.jp>
References: <808167FE-26AA-4262-A283-73554B7192A2@cisco.com> <5A5B4DE12C0DAC44AF501CD9A2B01A8D8F54EB4A@DGGEMM532-MBX.china.huawei.com>
From: "Clarence Filsfils (cfilsfil)" <cfilsfil@cisco.com>
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Date: Sun, 3 Mar 2019 11:30:56 +0100
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Subject: Re: [spring] draft-filsfils-spring-srv6-network-programming
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Dear Spring,

Softbank and Cisco have announced the deployment of SRv6:

https://newsroom.cisco.com/press-release-content?type=webcontent&articleId=1969030

Another deployment is ongoing and several others are in preparation.

All these design and deployments extensively leverage the mature content 
of the SRv6 network programmability document and its various 
implementations:

. Cisco: 4 different hardware and 3 OS
. Linux: Kernal and srext module
. FD.io: VPP
. Apps: Snort, Wireshark, tcpdump, iptables and nftables
. Other vendor as previously reported on the list

Multiple interoperable verifications took place.

The maturity of the draft since March 2017 coupled with the large number 
of implementations, their interoperability and their concrete deployment 
on several networks indicate that the drafts are ready for adoption by 
the working group.

Cheers,
Clarence Filsfils


On 01-03-19 04:30, Lizhenbin wrote:
> SRv6 network programming is an important work for the network evolution. 
> After refining many times the draft is already stable.
> 
> Besides the implementation and inter-op test info proposed, this week it 
> was published that there was already the commercial deployment of SRv6.
> 
> Hope the draft can be adopted by the working group as the co-author.
> 
> Best Regards,
> 
> Zhenbin (Robin)
> 
> *From:*spring [mailto:spring-bounces@ietf.org] *On Behalf Of *Pablo 
> Camarillo (pcamaril)
> *Sent:* Thursday, February 14, 2019 4:56 PM
> *To:* spring@ietf.org
> *Subject:* [spring] draft-filsfils-spring-srv6-network-programming
> 
> Dear Spring,
> 
> We have submitted a new revision of 
> draft-filsfils-spring-srv6-network-programming. There are several minor 
> updates to the document, mainly addressing ICMP and having better 
> alignment with SRH draft. Also, based on WG feedback, we have split the 
> document moving the illustrations into a new informational draft.
> 
> As always, any feedback or question is more than welcome.
> 
> https://datatracker.ietf.org/doc/draft-filsfils-spring-srv6-network-programming/
> 
> https://datatracker.ietf.org/doc/draft-filsfils-spring-srv6-net-pgm-illustration/
> 
> We believe that the content of both drafts is mature and has been stable 
> since the first revision in March 2017. We are tracking several 
> opensource and vendor proprietary implementations. Some of these have 
> actually participated in a public interop more than a year ago.
> 
> For these reasons we believe that both documents are ready to progress 
> and be adopted by the working group.
> 
> Thanks,
> 
> Pablo (on behalf of authors&contributors)
> 


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From: "Rakesh Gandhi (rgandhi)" <rgandhi@cisco.com>
To: Greg Mirsky <gregimirsky@gmail.com>, spring <spring@ietf.org>, "IETF IPPM WG" <ippm@ietf.org>
Thread-Topic: Comments on draft-gandhi-spring-twamp-srpm
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Date: Sun, 3 Mar 2019 14:17:11 +0000
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Subject: Re: [spring] Comments on draft-gandhi-spring-twamp-srpm
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--_000_0A415208C4F54DA782C547E4C6A8E996ciscocom_--


From nobody Mon Mar  4 00:44:23 2019
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From: "Weiqiang Cheng" <chengweiqiang@chinamobile.com>
To: <bruno.decraene@orange.com>, "'SPRING WG'" <spring@ietf.org>, "'Jeff Tantsura'" <jefftant.ietf@gmail.com>, <draft-cheng-spring-mpls-path-segment@ietf.org>
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Date: Mon, 4 Mar 2019 16:44:15 +0800
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Subject: Re: [spring] IPR Poll for draft-cheng-spring-mpls-path-segment
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Dear Chairs and Group,

I am not aware of any IPR that applies to this document.

Weiqiang Cheng

-----=D3=CA=BC=FE=D4=AD=BC=FE-----
=B7=A2=BC=FE=C8=CB: bruno.decraene@orange.com =
[mailto:bruno.decraene@orange.com]=20
=B7=A2=CB=CD=CA=B1=BC=E4: 2019=C4=EA2=D4=C220=C8=D5 17:02
=CA=D5=BC=FE=C8=CB: SPRING WG; Jeff Tantsura; =
draft-cheng-spring-mpls-path-segment@ietf.
org
=D6=F7=CC=E2: IPR Poll for draft-cheng-spring-mpls-path-segment

Hi Jeff, authors, SPRING WG,

In parallel to the call for adoption for
draft-cheng-spring-mpls-path-segment (1), we would like to poll for IPR.

If you are aware of IPR that applies to =
draft-cheng-spring-mpls-path-segment
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.
If you are not an author or contributor, please explicitly respond only =
if
you are aware of IPR that has not yet been disclosed.

During IETF 103, Jeff said that Ericsson owns an IPR on this. Jeff, do =
you
want to provide more details on this? Do you want to fill a third party =
IPR
disclosure?

This document will not advance into the working group until IPR
confirmations have been received from all authors and contributors.

Thanks,

(1) https://tools.ietf.org/html/draft-cheng-spring-mpls-path-segment

--Bruno & Rob.


_________________________________________________________________________=
___
_____________________________________________

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From: Satoru Matsushima <satoru.matsushima@gmail.com>
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Date: Mon, 4 Mar 2019 18:53:25 +0900
Cc: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>, =?utf-8?B?5p2+5baL6IGh?= <satoru.matsushima@g.softbank.co.jp>, "Clarence Filsfils (cfilsfil)" <cfilsfil@cisco.com>
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Subject: Re: [spring] draft-filsfils-spring-srv6-network-programming
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Hi Spring,=20

It=E2=80=99s my pleasure that we can finally announce our successful =
SRv6 deployment. I think that the experience and knowledge from the =
project contributed to the maturity of SRv6 network programming I-D.

I hope that it helps the I-D to be adopted as a WG doc, and it also =
contributes to progress the discussion in Spring.=20

Best regards,
--satoru


> 2019/03/03 19:30=E3=80=81Clarence Filsfils (cfilsfil) =
<cfilsfil@cisco.com>=E3=81=AE=E3=83=A1=E3=83=BC=E3=83=AB:
>=20
> Dear Spring,
>=20
> Softbank and Cisco have announced the deployment of SRv6:
>=20
> =
https://newsroom.cisco.com/press-release-content?type=3Dwebcontent&article=
Id=3D1969030
>=20
> Another deployment is ongoing and several others are in preparation.
>=20
> All these design and deployments extensively leverage the mature =
content of the SRv6 network programmability document and its various =
implementations:
>=20
> .. Cisco: 4 different hardware and 3 OS
> .. Linux: Kernal and srext module
> .. FD.io: VPP
> .. Apps: Snort, Wireshark, tcpdump, iptables and nftables
> .. Other vendor as previously reported on the list
>=20
> Multiple interoperable verifications took place.
>=20
> The maturity of the draft since March 2017 coupled with the large =
number of implementations, their interoperability and their concrete =
deployment on several networks indicate that the drafts are ready for =
adoption by the working group.
>=20
> Cheers,
> Clarence Filsfils
>=20
>=20
> On 01-03-19 04:30, Lizhenbin wrote:
>> SRv6 network programming is an important work for the network =
evolution. After refining many times the draft is already stable.
>> Besides the implementation and inter-op test info proposed, this week =
it was published that there was already the commercial deployment of =
SRv6.
>> Hope the draft can be adopted by the working group as the co-author.
>> Best Regards,
>> Zhenbin (Robin)
>> *From:*spring [mailto:spring-bounces@ietf.org] *On Behalf Of *Pablo =
Camarillo (pcamaril)
>> *Sent:* Thursday, February 14, 2019 4:56 PM
>> *To:* spring@ietf.org
>> *Subject:* [spring] draft-filsfils-spring-srv6-network-programming
>> Dear Spring,
>> We have submitted a new revision of =
draft-filsfils-spring-srv6-network-programming. There are several minor =
updates to the document, mainly addressing ICMP and having better =
alignment with SRH draft. Also, based on WG feedback, we have split the =
document moving the illustrations into a new informational draft.
>> As always, any feedback or question is more than welcome.
>> =
https://datatracker.ietf.org/doc/draft-filsfils-spring-srv6-network-progra=
mming/
>> =
https://datatracker.ietf.org/doc/draft-filsfils-spring-srv6-net-pgm-illust=
ration/
>> We believe that the content of both drafts is mature and has been =
stable since the first revision in March 2017. We are tracking several =
opensource and vendor proprietary implementations. Some of these have =
actually participated in a public interop more than a year ago.
>> For these reasons we believe that both documents are ready to =
progress and be adopted by the working group.
>> Thanks,
>> Pablo (on behalf of authors&contributors)
>=20
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring


From nobody Mon Mar  4 05:01:01 2019
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To: Satoru Matsushima <satoru.matsushima@gmail.com>, "spring@ietf.org" <spring@ietf.org>
Cc: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>, "Clarence Filsfils (cfilsfil)" <cfilsfil@cisco.com>, =?UTF-8?B?5p2+5baL6IGh?= <satoru.matsushima@g.softbank.co.jp>
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From: Loa Andersson <loa@pi.nu>
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Subject: Re: [spring] draft-filsfils-spring-srv6-network-programming
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Satoru and Clarence,

The news of successful deployment of SRv6 is encouraging, a good step
for both V6 and SR.

Congrat's!

Since this was announced in a mail indicating draft-filsfils-spring-
srv6-network-programming, I took a look at the draft itself, in
particular the IANA section.

A few questions on on the the new sub-registry.

The registration procedure  (apart from a typo in the header) are listed
like this.

1. Do we really need

    +-------------+---------------+--------------------+----------------+
    | Range       |      Hex      |    Registration    |     Notes      |
    |             |               |     proceadure     |                |
    +-------------+---------------+--------------------+----------------+
    | 0           |     0x0000    |      Reserved      |    Invalid     |
    | 1-32767     | 0x0001-0x7FFF |    IETF review     |     Draft      |
    |             |               |                    | Specifications |
    | 32768-49151 | 0x8000-0xBFFF |    Reserved for    |                |
    |             |               |  experimental use  |                |
    | 49152-65534 | 0xC000-0xFFFE |    Reserved for    |                |
    |             |               |    private use     |                |
    | 65535       |     0xFFFF    |      Reserved      |     Opaque     |
    +-------------+---------------+--------------------+----------------+

1. Do we really need 16k code points for experimental use?
2. Do we really need 16k code points for private use?
    - experimental use and private use are quite similar, it seems to be
      overkill to allocate 32k code points for very similar purposes
3. IETF review is intended for RFCs, RFC 8126 says:


"4.8.  IETF Review

    (Formerly called "IETF Consensus" in the first edition of this
    document.)  With the IETF Review policy, new values are assigned only
    through RFCs in the IETF Stream -- those that have been shepherded
    through the IESG as AD-Sponsored or IETF working group documents
    [RFC2026] [RFC5378], have gone through IETF Last Call, and have been
    approved by the IESG as having IETF consensus.

    The intent is that the document and proposed assignment will be
    reviewed by the IETF community (including appropriate IETF working
    groups, directorates, and other experts) and by the IESG, to ensure
    that the proposed assignment will not negatively affect
    interoperability or otherwise extend IETF protocols in an
    inappropriate or damaging manner.

    Unless otherwise specified, any type of RFC is sufficient (currently
    Standards Track, BCP, Informational, Experimental, or Historic)."

It seems like this document is, in this context, to add IDs to this set
of documents. Since IETF review means IESG review, I don't see that
happen unless you are prepared to go ahead and publish an RFC.

It would be possible to describe a new registration procedure called
"Draft Specifications", but there is no such description in the
document. It should be carefully described, it is not clear if any
ID (e.g. Individual) sufficient or if this for wg documents only.

4. For what does "Opaque" for the Reserved value (65535) mean?

/Loa



On 2019-03-04 17:53, Satoru Matsushima wrote:
> Hi Spring,
> 
> It’s my pleasure that we can finally announce our successful SRv6 deployment. I think that the experience and knowledge from the project contributed to the maturity of SRv6 network programming I-D.
> 
> I hope that it helps the I-D to be adopted as a WG doc, and it also contributes to progress the discussion in Spring.
> 
> Best regards,
> --satoru
> 
> 
>> 2019/03/03 19:30、Clarence Filsfils (cfilsfil) <cfilsfil@cisco.com>のメール:
>>
>> Dear Spring,
>>
>> Softbank and Cisco have announced the deployment of SRv6:
>>
>> https://newsroom.cisco.com/press-release-content?type=webcontent&articleId=1969030
>>
>> Another deployment is ongoing and several others are in preparation.
>>
>> All these design and deployments extensively leverage the mature content of the SRv6 network programmability document and its various implementations:
>>
>> .. Cisco: 4 different hardware and 3 OS
>> .. Linux: Kernal and srext module
>> .. FD.io: VPP
>> .. Apps: Snort, Wireshark, tcpdump, iptables and nftables
>> .. Other vendor as previously reported on the list
>>
>> Multiple interoperable verifications took place.
>>
>> The maturity of the draft since March 2017 coupled with the large number of implementations, their interoperability and their concrete deployment on several networks indicate that the drafts are ready for adoption by the working group.
>>
>> Cheers,
>> Clarence Filsfils
>>
>>
>> On 01-03-19 04:30, Lizhenbin wrote:
>>> SRv6 network programming is an important work for the network evolution. After refining many times the draft is already stable.
>>> Besides the implementation and inter-op test info proposed, this week it was published that there was already the commercial deployment of SRv6.
>>> Hope the draft can be adopted by the working group as the co-author.
>>> Best Regards,
>>> Zhenbin (Robin)
>>> *From:*spring [mailto:spring-bounces@ietf.org] *On Behalf Of *Pablo Camarillo (pcamaril)
>>> *Sent:* Thursday, February 14, 2019 4:56 PM
>>> *To:* spring@ietf.org
>>> *Subject:* [spring] draft-filsfils-spring-srv6-network-programming
>>> Dear Spring,
>>> We have submitted a new revision of draft-filsfils-spring-srv6-network-programming. There are several minor updates to the document, mainly addressing ICMP and having better alignment with SRH draft. Also, based on WG feedback, we have split the document moving the illustrations into a new informational draft.
>>> As always, any feedback or question is more than welcome.
>>> https://datatracker.ietf.org/doc/draft-filsfils-spring-srv6-network-programming/
>>> https://datatracker.ietf.org/doc/draft-filsfils-spring-srv6-net-pgm-illustration/
>>> We believe that the content of both drafts is mature and has been stable since the first revision in March 2017. We are tracking several opensource and vendor proprietary implementations. Some of these have actually participated in a public interop more than a year ago.
>>> For these reasons we believe that both documents are ready to progress and be adopted by the working group.
>>> Thanks,
>>> Pablo (on behalf of authors&contributors)
>>
>> _______________________________________________
>> 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
> 

-- 


Loa Andersson                        email: loa@pi.nu
Senior MPLS Expert
Bronze Dragon Consulting             phone: +46 739 81 21 64


From nobody Mon Mar  4 08:55:17 2019
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From: <bruno.decraene@orange.com>
To: SPRING WG <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: IETF 104 - SPRING meeting
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Hi WG,

For IETF 104, the SPRING WG is currently scheduled to meet Thursday, March =
28, 13:50-15:50. We have a two hours session.
https://datatracker.ietf.org/meeting/104/agenda.html

It is time to start building the SPRING WG agenda.

Please send to chairs your request for a presentation slot, indicating draf=
t name, speaker, and desired duration (covering presentation and discussion=
), before Monday 2019-03-11 COB. Before is better.

If it is the first presentation of a non-WG draft, please first introduce y=
our draft on the mailing list.
Otherwise, please give a reason why it is required to have a new presentati=
on slot.

A checklist is available on the wiki: https://trac.ietf.org/trac/spring/wik=
i/Checklist%20for%20presenting%20at%20a%20SPRING%20meeting

Please send your slides before Tuesday, March 26, 13:00 local time. Earlier=
 is better.

Thank you,

--Bruno, Rob


___________________________________________________________________________=
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To: "=?utf-8?Q?bruno.decraene=40orange.com?=" <bruno.decraene@orange.com>,  SPRING WG <spring@ietf.org>,  "=?utf-8?Q?draft-cheng-spring-mpls-path-segment=40ietf.org?=" <draft-cheng-spring-mpls-path-segment@ietf.org>
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Bruno/SPRING,

Short update.
Ericsson=E2=80=99s IPR department has assessed the applicability of the I=
PR filled to the draft and is in process of filing the IPR declaration, t=
hat should be published ASAP.

This should clarify.

Cheers,
Jeff
>
> -----Original Message-----
> =46rom: spring =5Bmailto:spring-bounces=40ietf.org=5D On Behalf Of brun=
o.decraene=40orange.com
> Sent: Wednesday, =46ebruary 20, 2019 5:02 PM
> To: SPRING WG <spring=40ietf.org>; Jeff Tantsura <jefftant.ietf=40gmail=
.com>; draft-cheng-spring-mpls-path-segment=40ietf.org
> Subject: =5Bspring=5D IPR Poll for draft-cheng-spring-mpls-path-segment=

>
> Hi Jeff, authors, SPRING WG,
>
> In parallel to the call for adoption for draft-cheng-spring-mpls-path-s=
egment (1), we would like to poll for IPR.
>
> If you are aware of IPR that applies to draft-cheng-spring-mpls-path-se=
gment please respond to this email.
> If you are aware of IPR, please indicate whether it has been disclosed =
in accordance with IET=46 IPR rules (R=46Cs 3979, 4879, 3669 and 5378 pro=
vide more details).
>
> If you are an *author or contributor* please respond to this email rega=
rdless of whether or not you're aware of any IPR.
> If you are not an author or contributor, please explicitly respond only=
 if you are aware of IPR that has not yet been disclosed.
>
> During IET=46 103, Jeff said that Ericsson owns an IPR on this. Jeff, d=
o you want to provide more details on this=3F Do you want to fill a third=
 party IPR disclosure=3F
>
> This document will not advance into the working group until IPR confirm=
ations have been received from all authors and contributors.
>
> Thanks,
>
> (1) https://tools.ietf.org/html/draft-cheng-spring-mpls-path-segment
>
> --Bruno & Rob.
>
>
> =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
>
> Ce message et ses pieces jointes peuvent contenir des informations conf=
identielles ou privilegiees et ne doivent donc pas etre diffuses, exploit=
es 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 j=
ointes. Les messages electroniques etant susceptibles d'alteration, Orang=
e decline toute responsabilite si ce message a ete altere, deforme ou fal=
sifie. 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 b=
een modified, changed or falsified.
> Thank you.
>
> =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
> spring mailing list
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--5c7d8fcb_368db37e_cfe2
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<html xmlns=3D=22http://www.w3.org/1999/xhtml=22>
<head>
<title></title>
</head>
<body>
<div name=3D=22messageBodySection=22 style=3D=22font-size: 14px; font-fam=
ily: -apple-system, BlinkMacSystem=46ont, sans-serif;=22>Bruno/SPRING,
<div><br /></div>
<div>Short update.<br />
<div>Ericsson=E2=80=99s IPR department has assessed the applicability of =
the IPR filled to the draft and is in process of filing the IPR declarati=
on, that should be published ASAP.<br /></div>
</div>
<div><br /></div>
<div>This should clarify.&=23160;</div>
</div>
<div name=3D=22messageSignatureSection=22><br />
<div class=3D=22match=46ont=22>Cheers,
<div style=3D=22font-size: 14px; font-family: -apple-system, BlinkMacSyst=
em=46ont, sans-serif;=22>Jeff</div>
</div>
</div>
<div name=3D=22messageReplySection=22 style=3D=22font-size: 14px; font-fa=
mily: -apple-system, BlinkMacSystem=46ont, sans-serif;=22>
<blockquote type=3D=22cite=22 style=3D=22margin: 5px 5px; padding-left: 1=
0px; border-left: thin solid =231abc9c;=22><br />
-----Original Message-----<br />
=46rom: spring =5Bmailto:spring-bounces=40ietf.org=5D On Behalf Of bruno.=
decraene=40orange.com<br />
Sent: Wednesday, =46ebruary 20, 2019 5:02 PM<br />
To: SPRING WG &lt;spring=40ietf.org&gt;; Jeff Tantsura &lt;jefftant.ietf=40=
gmail.com&gt;; draft-cheng-spring-mpls-path-segment=40ietf.org<br />
Subject: =5Bspring=5D IPR Poll for draft-cheng-spring-mpls-path-segment<b=
r />
<br />
Hi Jeff, authors, SPRING WG,<br />
<br />
In parallel to the call for adoption for draft-cheng-spring-mpls-path-seg=
ment (1), we would like to poll for IPR.<br />
<br />
If you are aware of IPR that applies to draft-cheng-spring-mpls-path-segm=
ent please respond to this email.<br />
If you are aware of IPR, please indicate whether it has been disclosed in=
 accordance with IET=46 IPR rules (R=46Cs 3979, 4879, 3669 and 5378 provi=
de more details).<br />
<br />
If you are an *author or contributor* please respond to this email regard=
less of whether or not you're aware of any IPR.<br />
If you are not an author or contributor, please explicitly respond only i=
f you are aware of IPR that has not yet been disclosed.<br />
<br />
During IET=46 103, Jeff said that Ericsson owns an IPR on this. Jeff, do =
you want to provide more details on this=3F Do you want to fill a third p=
arty IPR disclosure=3F<br />
<br />
This document will not advance into the working group until IPR confirmat=
ions have been received from all authors and contributors.<br />
<br />
Thanks,<br />
<br />
(1) https://tools.ietf.org/html/draft-cheng-spring-mpls-path-segment<br /=
>
<br />
--Bruno &amp; Rob.<br />
<br />
<br />
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F<br />
<br />
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 recu ce message par erreur, ve=
uillez le signaler a l'expediteur et le detruire ainsi que les pieces joi=
ntes. Les messages electroniques etant susceptibles d'alteration, Orange =
decline toute responsabilite si ce message a ete altere, deforme ou falsi=
fie. Merci.<br />
<br />
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.<br />
If you have received this email in error, please notify the sender and de=
lete this message and its attachments.<br />
As emails may be altered, Orange is not liable for messages that have bee=
n modified, changed or falsified.<br />
Thank you.<br />
<br />
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F<br />
spring mailing list<br />
spring=40ietf.org<br />
https://www.ietf.org/mailman/listinfo/spring<br /></blockquote>
</div>
</body>
</html>

--5c7d8fcb_368db37e_cfe2--


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From: "Voyer, Daniel" <daniel.voyer@bell.ca>
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From: "Voyer, Daniel" <daniel.voyer@bell.ca>
To: Peter Psenak <ppsenak@cisco.com>, "adrian@olddog.co.uk" <adrian@olddog.co.uk>, "ietf@ietf.org" <ietf@ietf.org>
CC: "draft-ietf-spring-segment-routing-mpls@ietf.org" <draft-ietf-spring-segment-routing-mpls@ietf.org>, "spring@ietf.org" <spring@ietf.org>, "spring-chairs@ietf.org" <spring-chairs@ietf.org>, "shraddha@juniper.net" <shraddha@juniper.net>
Thread-Topic: [spring] Last Call: <draft-ietf-spring-segment-routing-mpls-18.txt> (Segment Routing with MPLS data plane) to Proposed Standard
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Date: Mon, 4 Mar 2019 21:28:05 +0000
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From: Gaurav Dawra <gdawra.ietf@gmail.com>
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Date: Mon, 4 Mar 2019 15:56:50 -0800
Cc: "adrian@olddog.co.uk" <adrian@olddog.co.uk>, "ietf@ietf.org" <ietf@ietf.org>, "martin.vigoureux@nokia.com" <martin.vigoureux@nokia.com>, "draft-ietf-spring-segment-routing-mpls@ietf.org" <draft-ietf-spring-segment-routing-mpls@ietf.org>,  "spring@ietf.org" <spring@ietf.org>, "spring-chairs@ietf.org" <spring-chairs@ietf.org>, "shraddha@juniper.net" <shraddha@juniper.net>
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To: "Bernier, Daniel" <daniel.bernier@bell.ca>
Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/n6RB1AjzCn5crhEHnE3k8Qgi87E>
Subject: Re: [spring] Last Call: <draft-ietf-spring-segment-routing-mpls-18.txt> (Segment Routing with MPLS data plane) to Proposed Standard
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+1=20

Gaurav Dawra

Sent from my iPhone

> On Feb 28, 2019, at 6:11 AM, Bernier, Daniel <daniel.bernier@bell.ca> wrot=
e:
>=20
> +1
>=20
> Dan B
>=20
> =EF=BB=BFOn 2019-02-26, 4:20 PM, "spring on behalf of Adrian Farrel" <spri=
ng-bounces@ietf.org on behalf of adrian@olddog.co.uk> wrote:
>=20
>    This draft has been around the block a bit, but certainly needs to prog=
ress
>    because a lot of other things are dependent on it.
>=20
>    Fortunately after plenty of review and updates (thanks to the authors),=
 I
>    think it is now ready to become an RFC.
>=20
>    Adrian
>=20
>    -----Original Message-----
>    From: spring <spring-bounces@ietf.org> On Behalf Of The IESG
>    Sent: 21 February 2019 18:42
>    To: IETF-Announce <ietf-announce@ietf.org>
>    Cc: martin.vigoureux@nokia.com;
>    draft-ietf-spring-segment-routing-mpls@ietf.org; spring@ietf.org;
>    spring-chairs@ietf.org; shraddha@juniper.net
>    Subject: [spring] Last Call: <draft-ietf-spring-segment-routing-mpls-18=
.txt>
>    (Segment Routing with MPLS data plane) to Proposed Standard
>=20
>=20
>    The IESG has received a request from the Source Packet Routing in Netwo=
rking
>    WG (spring) to consider the following document: - 'Segment Routing with=
 MPLS
>    data plane'
>      <draft-ietf-spring-segment-routing-mpls-18.txt> as Proposed Standard
>=20
>    The IESG plans to make a decision in the next few weeks, and solicits f=
inal
>    comments on this action. Please send substantive comments to the
>    ietf@ietf.org mailing lists by 2019-03-07. Exceptionally, comments may b=
e
>    sent to iesg@ietf.org instead. In either case, please retain the beginn=
ing
>    of
>    the Subject line to allow automated sorting.
>=20
>    Abstract
>=20
>=20
>       Segment Routing (SR) leverages the source routing paradigm.  A node
>       steers a packet through a controlled set of instructions, called
>       segments, by prepending the packet with an SR header.  In the MPLS
>       dataplane, the SR header is instantiated through a label stack. This=

>       document specifies the forwarding behavior to allow instantiating SR=

>       over the MPLS dataplane.
>=20
>=20
>=20
>=20
>    The file can be obtained via
>    https://datatracker.ietf.org/doc/draft-ietf-spring-segment-routing-mpls=
/
>=20
>    IESG discussion can be tracked via
>    https://datatracker.ietf.org/doc/draft-ietf-spring-segment-routing-mpls=
/ball
>    ot/
>=20
>    The following IPR Declarations may be related to this I-D:
>=20
>       https://datatracker.ietf.org/ipr/2880/
>       https://datatracker.ietf.org/ipr/2453/
>       https://datatracker.ietf.org/ipr/2454/
>=20
>=20
>=20
>=20
>=20
>    _______________________________________________
>    spring mailing list
>    spring@ietf.org
>    https://www.ietf.org/mailman/listinfo/spring
>=20
>    _______________________________________________
>    spring mailing list
>    spring@ietf.org
>    https://www.ietf.org/mailman/listinfo/spring
>=20
>=20
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring


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CC: SPRING WG <spring@ietf.org>, "draft-cheng-spring-mpls-path-segment@ietf.org" <draft-cheng-spring-mpls-path-segment@ietf.org>
Thread-Topic: IPR Poll for draft-cheng-spring-mpls-path-segment
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Date: Tue, 5 Mar 2019 08:47:06 +0000
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Subject: Re: [spring] IPR Poll for draft-cheng-spring-mpls-path-segment
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From nobody Tue Mar  5 01:50:02 2019
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From: IETF Secretariat <ietf-secretariat-reply@ietf.org>
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Subject: [spring] The SPRING WG has placed draft-cheng-spring-mpls-path-segment in state "Call For Adoption By WG Issued"
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The SPRING WG has placed draft-cheng-spring-mpls-path-segment in state
Call For Adoption By WG Issued (entered by Bruno Decraene)

The document is available at
https://datatracker.ietf.org/doc/draft-cheng-spring-mpls-path-segment/

Comment:
2 weeks call for adoption: from February 20 to March 6th 2019.

IPR call:
https://mailarchive.ietf.org/arch/msg/spring/ekBGBgqmwGTDqPSdgd83SpV0cDk WG
adoption call:
https://mailarchive.ietf.org/arch/msg/spring/YVL5_CnjZYETjXmK8XQD5Yuhh70


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From: "Andrew G. Malis" <agmalis@gmail.com>
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To: Bruno Decraene <bruno.decraene@orange.com>
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Subject: Re: [spring] Working Group Adoption Call for draft-cheng-spring-mpls-path-segment
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Like many others, I also support adoption, this draft is important for
SR-MPLS path protection and PM.

Cheers,
Andy


On Wed, Feb 20, 2019 at 4:03 AM <bruno.decraene@orange.com> wrote:

> Hi SPRING WG,
>
> This email initiates a two week call for working group adoption for
> draft-cheng-spring-mpls-path-segment.
>
> Please indicate your support, comments, or objection, for adopting this
> draft as a working group item by March 6th 2019.
> We are particularly interested in hearing from working group members that
> are not co-authors of this draft.
> We are also looking for volunteers who would be ready to perform a
> technical review of this work at some later stage, such as before or during
> WG the last call.
>
> Additionally, there are currently 7 authors listed on this document.
> Please trim this to <= 5 front-page authors, utilising a "Contributors"
> section if required for the others. An approach to achieving this would be
> to list ~2 editors as the front-page authors.
>
> In parallel to this adoption call, I will send an IPR call for this
> document. We will need all authors and contributors to confirm their IPR
> position on this document.
>
> (1) https://tools.ietf.org/html/draft-cheng-spring-mpls-path-segment
>
> Thanks,
> --Bruno & Rob.
>
>
>
> _________________________________________________________________________________________________________________________
>
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<div dir=3D"ltr">Like many others, I also support adoption, this draft is i=
mportant for SR-MPLS path protection and PM.<div><br></div><div>Cheers,</di=
v><div>Andy</div><div><br></div></div><br><div class=3D"gmail_quote"><div d=
ir=3D"ltr" class=3D"gmail_attr">On Wed, Feb 20, 2019 at 4:03 AM &lt;<a href=
=3D"mailto:bruno.decraene@orange.com">bruno.decraene@orange.com</a>&gt; wro=
te:<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">Hi SPRING WG=
,<br>
<br>
This email initiates a two week call for working group adoption for draft-c=
heng-spring-mpls-path-segment.<br>
<br>
Please indicate your support, comments, or objection, for adopting this dra=
ft as a working group item by March 6th 2019.<br>
We are particularly interested in hearing from working group members that a=
re not co-authors of this draft.<br>
We are also looking for volunteers who would be ready to perform a technica=
l review of this work at some later stage, such as before or during WG the =
last call.<br>
<br>
Additionally, there are currently 7 authors listed on this document. Please=
 trim this to &lt;=3D 5 front-page authors, utilising a &quot;Contributors&=
quot; section if required for the others. An approach to achieving this wou=
ld be to list ~2 editors as the front-page authors.<br>
<br>
In parallel to this adoption call, I will send an IPR call for this documen=
t. We will need all authors and contributors to confirm their IPR position =
on this document.<br>
<br>
(1) <a href=3D"https://tools.ietf.org/html/draft-cheng-spring-mpls-path-seg=
ment" rel=3D"noreferrer" target=3D"_blank">https://tools.ietf.org/html/draf=
t-cheng-spring-mpls-path-segment</a><br>
<br>
Thanks,<br>
--Bruno &amp; Rob.<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>

--0000000000008614eb05835a21bd--


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From: Peter Psenak <ppsenak@cisco.com>
To: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
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Subject: Re: [spring] FlexAlgo and Global Adj-SIDs
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Hi Sasha,

On 02/03/2019 18:57 , Alexander Vainshtein wrote:
> Peter,
> Lots of thanks for a prompt and hivhly informative response.
>
> It seems that per-FlexAlgo Adj-SIDs can be useful even if they are local.
> The relevant use case could be a protected local Adj-SID that is used in
> a SR-TE LSP that has been set up with some constraints in mind. These
> constraints would be preserved when the protected adjacency in question
> is UP, but could be violated when it fails and the shortest path to the
> node at the remote end of adjacency is used.

yes, this is a possible use case. This would require a new Algo specific 
Adj-SID sub-TLV to be defined. This could be done.

thanks,
Peter



>
> Local protected Adj-SIDs for sure have bern implemented, so this looks
> like a more relevant use case than global adjacencies to me.
>
> What do you think?
>
> Regards, and lots of thanks in advance,
>
> Thumb typed by Sasha Vainshtein
>
> ------------------------------------------------------------------------
> *From:* Peter Psenak <ppsenak@cisco.com>
> *Sent:* Thursday, February 28, 2019 9:56:49 PM
> *To:* Alexander Vainshtein;
> draft-ietf-isis-segment-routing-extensions@ietf.org
> *Cc:* lsr@ietf.org; spring@ietf.org
> *Subject:* Re: [spring] FlexAlgo and Global Adj-SIDs
>
> Hi Alexander,
>
> On 28/02/2019 19:19 , Alexander Vainshtein wrote:
>> Dear colleagues,
>>
>> I have a question regarding global Adj-SIDs in
>> draft-ietf-isis-segment-routing-extensions.
>>
>>
>>
>> Section 3.4 of RFC 8402 <https://tools.ietf.org/html/rfc8402>  defines
>> definition and handling of global Adj-SIDs.
>>
>> The relevant text is given below:
>>
>>
>>
>> <quote>
>>
>>    Similarly, when using a global Adj-SID, a packet injected anywhere
>>
>>    within the SR domain with a segment list {SNL}, where SNL is a global
>>
>>    Adj-SID attached by node N to its adjacency over link L, will be
>>
>>    forwarded along the shortest path to Nand then be switched by N,
>>
>>    without any IP shortest-path consideration, towards link L.
>>
>> ...
>>
>>    The use of global Adj-SID allows to reduce the size of the segment list
>>
>>    When expressing a path at the cost of additional state (i.e., the global
>>
>>    Adj-SID will be inserted by all routers within the area in their
>>
>>    forwarding table).
>>
>> <end quote>
>>
>>
>>
>> The definition of the Adjacency Segment Identifier Sub-TLV in Section
>> 2.2.1 of the draft matches the behavior defined in RFC 8402, i.e., it
>> allows advertisement of global Adj-SIDs.
>>
>> These advertisements can be associated with a specific IGP adjacency
>> and, in multi-topology scenarios, a specific topology. But it is not
>> associated with any specific algorithm since the default algorithm for
>> reaching the advertising node is implicitly assumed in full alignment
>> with RFC 8402.
>>
>>
>>
>> My question is about the situation in which multiple algorithms are
>> supported by the routers in the SR domain, so that each node advertises
>> a dedicated Node SID for each of these algorithm.
>>
>> In this scenario, the operator can set up a SR-TE LSP that meets
>> specific constraints (incorporated in one of these algorithms, see IGP
>> Flexible Algorithm
>> <https://tools.ietf.org/html/draft-ietf-lsr-flex-algo-01> draft) by
>> using Node SIDs that have been advertised with the corresponding
>> algorithm and local Adj-SIDs. However, global Adj-SIDs cannot be used
>> (e.g., for reducing the label stack depth) in this situation.
>>
>> I wonder if the possibility to advertise global Adj-SID (that can be
>> considered as replacing a combination of the Node SID of the advertising
>> node and one of its local Adj-SIDs) as associated with a specific
>> algorithm has ever been considered?
>
> to be honest, it has been not.
>
> The usage of the global Adj-SID has not been widely considered due to
> the additional forwarding entries it requires on rest of the routers in
> the area. Not sure if there are implementations of the global ADj-SID
> out there.
>
> If you believe this is important, we can certainly addressed that in a
> small draft.
>
> thanks,
> Peter
>
>
>
>
>>
>>
>>
>> Regards, and lots of thanks in advance,
>>
>> Sasha
>>
>>
>>
>> Office: +972-39266302
>>
>> Cell:      +972-549266302
>>
>> Email:   Alexander.Vainshtein@ecitele.com
>>
>>
>>
>>
>> ___________________________________________________________________________
>>
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>> CONFIDENTIAL and which may be proprietary to ECI Telecom. If you have
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>
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> This e-mail message is intended for the recipient only and contains
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From nobody Tue Mar  5 07:36:27 2019
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Subject: [spring] IPR Disclosure Telefonaktiebolaget LM Ericsson (publ)'s Statement about IPR related to draft-cheng-spring-mpls-path-segment
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Dear Weiqiang Cheng, Lei Wang, Han Li, Mach Chen, Rakesh Gandhi, Royi Zigler, Shuangping Zhan:


An IPR disclosure that pertains to your Internet-Draft entitled "Path
Segment in MPLS Based Segment Routing Network"
(draft-cheng-spring-mpls-path-segment) was submitted to the IETF Secretariat
on  and has been posted on the "IETF Page of Intellectual Property Rights
Disclosures" (https://datatracker.ietf.org/ipr/3455/). The title of the IPR
disclosure is "Telefonaktiebolaget LM Ericsson (publ)'s Statement about
IPR related to draft-cheng-spring-mpls-path-segment"


Thank you

IETF Secretariat


From nobody Tue Mar  5 08:28:57 2019
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From: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
To: Peter Psenak <ppsenak@cisco.com>
CC: "lsr@ietf.org" <lsr@ietf.org>, "spring@ietf.org" <spring@ietf.org>, "draft-ietf-isis-segment-routing-extensions.all@ietf.org" <draft-ietf-isis-segment-routing-extensions.all@ietf.org>
Thread-Topic: [spring] FlexAlgo and Global Adj-SIDs
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/NDBaqJXiLbyObLiD6e1-I0kttY0>
Subject: Re: [spring] FlexAlgo and Global Adj-SIDs
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Peter,
Lots of thanks for a prompt and very encouraging response.

Do you think that the new Algo specific Adj-SID sub-TLV could be added to =
the current IS-IS segment Routing Extensions draft, or should be handled i=
n a small dedicated document?

Regards, and lots of thanks in advance,
Sasha

Office: +972-39266302
Cell:      +972-549266302
Email:   Alexander.Vainshtein@ecitele.com

-----Original Message-----
From: Peter Psenak <ppsenak@cisco.com>=20
Sent: Tuesday, March 5, 2019 5:28 PM
To: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
Cc: lsr@ietf.org; spring@ietf.org; draft-ietf-isis-segment-routing-extensi=
ons.all@ietf.org
Subject: Re: [spring] FlexAlgo and Global Adj-SIDs

Hi Sasha,

On 02/03/2019 18:57 , Alexander Vainshtein wrote:
> Peter,
> Lots of thanks for a prompt and hivhly informative response.
>
> It seems that per-FlexAlgo Adj-SIDs can be useful even if they are local=
.
> The relevant use case could be a protected local Adj-SID that is used=20=

> in a SR-TE LSP that has been set up with some=20constraints in mind.=20
> These constraints would be preserved when the protected adjacency in=20
> question is UP, but could be violated when it fails and the shortest=20
> path to the node at the remote end of adjacency is used.

yes, this is a possible use case. This would require a new Algo specific A=
dj-SID sub-TLV to be defined. This could be done.

thanks,
Peter



>
> Local protected Adj-SIDs for sure have bern implemented, so this looks=20=

> like a more relevant use case than global adjacencies to me.
>
> What do you think?
>
> Regards, and lots of thanks in advance,
>
> Thumb typed by Sasha Vainshtein
>
> ----------------------------------------------------------------------
> --
> *From:* Peter Psenak <ppsenak@cisco.com>
> *Sent:* Thursday, February 28, 2019 9:56:49 PM
> *To:* Alexander Vainshtein;
> draft-ietf-isis-segment-routing-extensions@ietf.org
> *Cc:* lsr@ietf.org; spring@ietf.org
> *Subject:* Re: [spring] FlexAlgo and Global Adj-SIDs
>
> Hi Alexander,
>
> On 28/02/2019 19:19 , Alexander Vainshtein wrote:
>> Dear colleagues,
>>
>> I have a question regarding global Adj-SIDs in=20
>> draft-ietf-isis-segment-routing-extensions.
>>
>>
>>
>> Section 3.4 of RFC 8402 <https://tools.ietf.org/html/rfc8402> =20
>> defines definition and handling of global Adj-SIDs.
>>
>> The relevant text is given below:
>>
>>
>>
>> <quote>
>>
>>    Similarly, when using a global Adj-SID, a packet injected anywhere
>>
>>    within the SR domain with a segment list {SNL}, where SNL is a=20
>> global
>>
>>    Adj-SID attached by node N to its adjacency over link L, will be
>>
>>    forwarded along the shortest path to Nand then be switched by N,
>>
>>    without any IP shortest-path consideration, towards link L.
>>
>> ...
>>
>>    The use of global Adj-SID allows to reduce the size of the segment=20=

>> list
>>
>>    When expressing a path at the cost of additional state (i.e., the=20=

>> global
>>
>>    Adj-SID will be inserted by all routers within the area in their
>>
>>    forwarding table).
>>
>> <end quote>
>>
>>
>>
>> The definition of the Adjacency Segment Identifier Sub-TLV in Section
>> 2.2.1 of the draft matches the behavior defined in RFC 8402, i.e., it=20=

>> allows advertisement of global Adj-SIDs.
>>
>> These advertisements can be associated with a specific IGP adjacency=20=

>> and, in multi-topology scenarios, a specific topology. But it is not=20=

>> associated with any specific algorithm since the default algorithm=20
>> for reaching the advertising node is implicitly assumed in full=20
>> alignment with RFC 8402.
>>
>>
>>
>> My question is about the situation in which multiple algorithms are=20
>> supported by the routers in the SR domain, so that each node=20
>> advertises a dedicated Node SID for each of these algorithm.
>>
>> In this scenario, the operator can set up a SR-TE LSP that meets=20
>> specific constraints (incorporated in one of these algorithms, see=20
>> IGP Flexible Algorithm=20
>> <https://tools.ietf.org/html/draft-ietf-lsr-flex-algo-01> draft) by=20
>> using Node SIDs that have been advertised with the corresponding=20
>> algorithm and local Adj-SIDs. However, global Adj-SIDs cannot be used=20=

>> (e.g., for reducing the label stack depth) in this situation.
>>
>> I wonder if the possibility to advertise global Adj-SID (that can be=20=

>> considered as replacing a combination of the Node SID of the=20
>> advertising node and one of its local Adj-SIDs) as associated with a=20=

>> specific algorithm has ever been considered?
>
> to be honest, it has been not.
>
> The usage of the global Adj-SID has not been widely considered due to=20=

> the additional forwarding entries it requires on rest of the routers=20
> in the area. Not sure if there are implementations of the global=20
> ADj-SID out there.
>
> If you believe this is important, we can certainly addressed that in a=20=

> small draft.
>
> thanks,
> Peter
>
>
>
>
>>
>>
>>
>> Regards, and lots of thanks in advance,
>>
>> Sasha
>>
>>
>>
>> Office: +972-39266302
>>
>> Cell:      +972-549266302
>>
>> Email:   Alexander.Vainshtein@ecitele.com
>>
>>
>>
>>
>> _____________________________________________________________________
>> ______
>>
>> This e-mail message is intended for the recipient only and contains=20
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>> Telecom. If you have received this transmission in error, please=20
>> inform us by e-mail, phone or fax, and then delete the original and=20
>> all copies thereof.
>> _____________________________________________________________________
>> ______
>>
>>
>> _______________________________________________
>> spring mailing list
>> spring@ietf.org
>> https://www.ietf.org/mailman/listinfo/spring
>>
>
>
> ______________________________________________________________________
> _____
>
> This e-mail message is intended for the recipient only and contains=20
> information which is CONFIDENTIAL and which may be proprietary to ECI=20=

> Telecom. If you have received this transmission in error, please=20
> inform us by e-mail, phone or fax, and then delete the original and=20
> all copies thereof.
> ______________________________________________________________________
> _____

__________________________________________________________________________=
_

This e-mail message is intended for the recipient only and contains inform=
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From: Peter Psenak <ppsenak@cisco.com>
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Subject: Re: [spring] FlexAlgo and Global Adj-SIDs
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Hi Sasha,

On 05/03/2019 17:28 , Alexander Vainshtein wrote:
> Peter,
> Lots of thanks for a prompt and very encouraging response.
>
> Do you think that the new Algo specific Adj-SID sub-TLV could be added to the current IS-IS segment Routing Extensions draft, or should be handled in a small dedicated document?

it would have to be a new draft, existing ISIS SR draft is on its way to 
become an RFC and we do not want to return it back to the WG due to this.

thanks,
Peter

>
> Regards, and lots of thanks in advance,
> Sasha
>
> Office: +972-39266302
> Cell:      +972-549266302
> Email:   Alexander.Vainshtein@ecitele.com
>
> -----Original Message-----
> From: Peter Psenak <ppsenak@cisco.com>
> Sent: Tuesday, March 5, 2019 5:28 PM
> To: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
> Cc: lsr@ietf.org; spring@ietf.org; draft-ietf-isis-segment-routing-extensions.all@ietf.org
> Subject: Re: [spring] FlexAlgo and Global Adj-SIDs
>
> Hi Sasha,
>
> On 02/03/2019 18:57 , Alexander Vainshtein wrote:
>> Peter,
>> Lots of thanks for a prompt and hivhly informative response.
>>
>> It seems that per-FlexAlgo Adj-SIDs can be useful even if they are local.
>> The relevant use case could be a protected local Adj-SID that is used
>> in a SR-TE LSP that has been set up with some constraints in mind.
>> These constraints would be preserved when the protected adjacency in
>> question is UP, but could be violated when it fails and the shortest
>> path to the node at the remote end of adjacency is used.
>
> yes, this is a possible use case. This would require a new Algo specific Adj-SID sub-TLV to be defined. This could be done.
>
> thanks,
> Peter
>
>
>
>>
>> Local protected Adj-SIDs for sure have bern implemented, so this looks
>> like a more relevant use case than global adjacencies to me.
>>
>> What do you think?
>>
>> Regards, and lots of thanks in advance,
>>
>> Thumb typed by Sasha Vainshtein
>>
>> ----------------------------------------------------------------------
>> --
>> *From:* Peter Psenak <ppsenak@cisco.com>
>> *Sent:* Thursday, February 28, 2019 9:56:49 PM
>> *To:* Alexander Vainshtein;
>> draft-ietf-isis-segment-routing-extensions@ietf.org
>> *Cc:* lsr@ietf.org; spring@ietf.org
>> *Subject:* Re: [spring] FlexAlgo and Global Adj-SIDs
>>
>> Hi Alexander,
>>
>> On 28/02/2019 19:19 , Alexander Vainshtein wrote:
>>> Dear colleagues,
>>>
>>> I have a question regarding global Adj-SIDs in
>>> draft-ietf-isis-segment-routing-extensions.
>>>
>>>
>>>
>>> Section 3.4 of RFC 8402 <https://tools.ietf.org/html/rfc8402>
>>> defines definition and handling of global Adj-SIDs.
>>>
>>> The relevant text is given below:
>>>
>>>
>>>
>>> <quote>
>>>
>>>    Similarly, when using a global Adj-SID, a packet injected anywhere
>>>
>>>    within the SR domain with a segment list {SNL}, where SNL is a
>>> global
>>>
>>>    Adj-SID attached by node N to its adjacency over link L, will be
>>>
>>>    forwarded along the shortest path to Nand then be switched by N,
>>>
>>>    without any IP shortest-path consideration, towards link L.
>>>
>>> ...
>>>
>>>    The use of global Adj-SID allows to reduce the size of the segment
>>> list
>>>
>>>    When expressing a path at the cost of additional state (i.e., the
>>> global
>>>
>>>    Adj-SID will be inserted by all routers within the area in their
>>>
>>>    forwarding table).
>>>
>>> <end quote>
>>>
>>>
>>>
>>> The definition of the Adjacency Segment Identifier Sub-TLV in Section
>>> 2.2.1 of the draft matches the behavior defined in RFC 8402, i.e., it
>>> allows advertisement of global Adj-SIDs.
>>>
>>> These advertisements can be associated with a specific IGP adjacency
>>> and, in multi-topology scenarios, a specific topology. But it is not
>>> associated with any specific algorithm since the default algorithm
>>> for reaching the advertising node is implicitly assumed in full
>>> alignment with RFC 8402.
>>>
>>>
>>>
>>> My question is about the situation in which multiple algorithms are
>>> supported by the routers in the SR domain, so that each node
>>> advertises a dedicated Node SID for each of these algorithm.
>>>
>>> In this scenario, the operator can set up a SR-TE LSP that meets
>>> specific constraints (incorporated in one of these algorithms, see
>>> IGP Flexible Algorithm
>>> <https://tools.ietf.org/html/draft-ietf-lsr-flex-algo-01> draft) by
>>> using Node SIDs that have been advertised with the corresponding
>>> algorithm and local Adj-SIDs. However, global Adj-SIDs cannot be used
>>> (e.g., for reducing the label stack depth) in this situation.
>>>
>>> I wonder if the possibility to advertise global Adj-SID (that can be
>>> considered as replacing a combination of the Node SID of the
>>> advertising node and one of its local Adj-SIDs) as associated with a
>>> specific algorithm has ever been considered?
>>
>> to be honest, it has been not.
>>
>> The usage of the global Adj-SID has not been widely considered due to
>> the additional forwarding entries it requires on rest of the routers
>> in the area. Not sure if there are implementations of the global
>> ADj-SID out there.
>>
>> If you believe this is important, we can certainly addressed that in a
>> small draft.
>>
>> thanks,
>> Peter
>>
>>
>>
>>
>>>
>>>
>>>
>>> Regards, and lots of thanks in advance,
>>>
>>> Sasha
>>>
>>>
>>>
>>> Office: +972-39266302
>>>
>>> Cell:      +972-549266302
>>>
>>> Email:   Alexander.Vainshtein@ecitele.com
>>>
>>>
>>>
>>>
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From: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
To: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>, "Peter Psenak (ppsenak)" <ppsenak@cisco.com>
CC: "lsr@ietf.org" <lsr@ietf.org>, "spring@ietf.org" <spring@ietf.org>, "draft-ietf-isis-segment-routing-extensions.all@ietf.org" <draft-ietf-isis-segment-routing-extensions.all@ietf.org>
Thread-Topic: [spring] FlexAlgo and Global Adj-SIDs
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Subject: Re: [spring] FlexAlgo and Global Adj-SIDs
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Sasha -

draft-ietf-isis-segment-routing-extensions is currently in AD review - and =
the companion OSPF document has already been approved and is waiting for a =
dependent draft to progress before publication as an RFC.

It is too late to make significant changes.

Further, while I agree with both your description and Peter's response, agr=
eeing that this "could" be done is not equivalent to having consensus that =
it "should" be done.
I think a more complete consideration of the deployment cases and the usefu=
lness of such an extension should be discussed by the WG before we decide t=
hat we actually want to define such an extension.

  Les


> -----Original Message-----
> From: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
> Sent: Tuesday, March 05, 2019 8:29 AM
> To: Peter Psenak (ppsenak) <ppsenak@cisco.com>
> Cc: lsr@ietf.org; spring@ietf.org; draft-ietf-isis-segment-routing-
> extensions.all@ietf.org
> Subject: RE: [spring] FlexAlgo and Global Adj-SIDs
>=20
> Peter,
> Lots of thanks for a prompt and very encouraging response.
>=20
> Do you think that the new Algo specific Adj-SID sub-TLV could be added to
> the current IS-IS segment Routing Extensions draft, or should be handled =
in a
> small dedicated document?
>=20
> Regards, and lots of thanks in advance,
> Sasha
>=20
> Office: +972-39266302
> Cell:      +972-549266302
> Email:   Alexander.Vainshtein@ecitele.com
>=20
> -----Original Message-----
> From: Peter Psenak <ppsenak@cisco.com>
> Sent: Tuesday, March 5, 2019 5:28 PM
> To: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
> Cc: lsr@ietf.org; spring@ietf.org; draft-ietf-isis-segment-routing-
> extensions.all@ietf.org
> Subject: Re: [spring] FlexAlgo and Global Adj-SIDs
>=20
> Hi Sasha,
>=20
> On 02/03/2019 18:57 , Alexander Vainshtein wrote:
> > Peter,
> > Lots of thanks for a prompt and hivhly informative response.
> >
> > It seems that per-FlexAlgo Adj-SIDs can be useful even if they are loca=
l


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From: "Fomin, Sergey (Nokia - RU/Saint Petersburg)" <sergey.fomin@nokia.com>
To: "draft-ietf-spring-segment-routing-mpls@ietf.org" <draft-ietf-spring-segment-routing-mpls@ietf.org>
CC: "Vigoureux, Martin (Nokia - FR/Paris-Saclay)" <martin.vigoureux@nokia.com>, "spring@ietf.org" <spring@ietf.org>, "spring-chairs@ietf.org" <spring-chairs@ietf.org>, "shraddha@juniper.net" <shraddha@juniper.net>, "ietf@ietf.org" <ietf@ietf.org>
Thread-Topic: [spring] Last Call: <draft-ietf-spring-segment-routing-mpls-18.txt> (Segment Routing with MPLS data plane) to Proposed Standard
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Subject: Re: [spring] Last Call: <draft-ietf-spring-segment-routing-mpls-18.txt> (Segment Routing with MPLS data plane) to Proposed Standard
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From: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
To: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
CC: "lsr@ietf.org" <lsr@ietf.org>, "spring@ietf.org" <spring@ietf.org>, "draft-ietf-isis-segment-routing-extensions.all@ietf.org" <draft-ietf-isis-segment-routing-extensions.all@ietf.org>, "Peter Psenak (ppsenak)" <ppsenak@cisco.com>
Thread-Topic: [spring] FlexAlgo and Global Adj-SIDs
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/djft-AyPzy-znEC4dOhBwS4dOZY>
Subject: Re: [spring] FlexAlgo and Global Adj-SIDs
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Les,
Lots of thanks for a prompt response.

I fully understand that the current SR extension drafts are too far advanc=
ed for any significant changes.

I also understand that Algo-specific Adj-SIDs require an update to RFC 840=
2 because today it does not recognize any such entities.
Therefore the discussion of use cases should probably start in the SPRING =
WG while effective the result would be "just" new Sub-TLV in IS-IS and OSP=
F with the actual work coming to the LSR WG.=20

Any ideas as to what would be the best way to start this kind of discussio=
ns?=20

Regards,
Sasha

Office: +972-39266302
Cell:      +972-549266302
Email:   Alexander.Vainshtein@ecitele.com


-----Original Message-----
From: Les Ginsberg (ginsberg) <ginsberg@cisco.com>=20
Sent: Tuesday, March 5, 2019 6:37 PM
To: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>; Peter Psenak =
(ppsenak) <ppsenak@cisco.com>
Cc: lsr@ietf.org; spring@ietf.org; draft-ietf-isis-segment-routing-extensi=
ons.all@ietf.org
Subject: RE: [spring] FlexAlgo and Global Adj-SIDs

Sasha -

draft-ietf-isis-segment-routing-extensions is currently in AD review - and=
 the companion OSPF document has already been approved and is waiting for =
a dependent draft to progress before publication as an RFC.

It is too late to make significant changes.

Further, while I agree with both your description and Peter's response, ag=
reeing that this "could" be done is not equivalent to having consensus tha=
t it "should" be done.
I think a more complete consideration of the deployment cases and the usef=
ulness of such an extension should be discussed by the WG before we decide=
 that we actually want to define such an extension.

  Les


> -----Original Message-----
> From: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
> Sent: Tuesday, March 05, 2019 8:29 AM
> To: Peter Psenak (ppsenak) <ppsenak@cisco.com>
> Cc: lsr@ietf.org; spring@ietf.org; draft-ietf-isis-segment-routing-=20
> extensions.all@ietf.org
> Subject: RE: [spring] FlexAlgo and Global Adj-SIDs
>=20
> Peter,
> Lots of thanks for a prompt and very encouraging response.
>=20
> Do you think that the new Algo specific Adj-SID sub-TLV could be added=20=

> to the current IS-IS segment Routing Extensions draft, or should be=20
> handled in a small dedicated document?
>=20
> Regards, and lots of thanks in advance, Sasha
>=20
> Office: +972-39266302
> Cell:      +972-549266302
> Email:   Alexander.Vainshtein@ecitele.com
>=20
> -----Original Message-----
> From: Peter Psenak <ppsenak@cisco.com>
> Sent: Tuesday, March 5, 2019 5:28 PM
> To: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
> Cc: lsr@ietf.org; spring@ietf.org; draft-ietf-isis-segment-routing-=20
> extensions.all@ietf.org
> Subject: Re: [spring] FlexAlgo and Global Adj-SIDs
>=20
> Hi Sasha,
>=20
> On 02/03/2019 18:57 , Alexander Vainshtein wrote:
> > Peter,
> > Lots of thanks for a prompt and hivhly informative response.
> >
> > It seems that per-FlexAlgo Adj-SIDs can be useful even if they are=20
> > local

__________________________________________________________________________=
_

This e-mail message=20is intended for the recipient only and contains info=
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CONFIDENTIAL and which may be proprietary to ECI Telecom. If you have rece=
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transmission in error, please inform us by e-mail, phone or fax, and then =
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From: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
To: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
CC: "lsr@ietf.org" <lsr@ietf.org>, "spring@ietf.org" <spring@ietf.org>, "draft-ietf-isis-segment-routing-extensions.all@ietf.org" <draft-ietf-isis-segment-routing-extensions.all@ietf.org>, "Peter Psenak (ppsenak)" <ppsenak@cisco.com>
Thread-Topic: [spring] FlexAlgo and Global Adj-SIDs
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Subject: Re: [spring] FlexAlgo and Global Adj-SIDs
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Sasha -

Although you raise a valid issue, I am not feeling any urgency here i.e., a=
lthough the local protected use case is valid I don't see it as operational=
ly critical.
However, that's just my opinion.

If you want to pursue this I think you could raise the issue in either LSR =
or SPRING (or both).
The gap in the architecture documents is less important than coming to cons=
ensus on the importance of the use case.  If there is consensus to address =
this then I think deciding what documents need updating will just follow lo=
gically.

Make sense to you?

   Les


> -----Original Message-----
> From: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
> Sent: Tuesday, March 05, 2019 8:47 AM
> To: Les Ginsberg (ginsberg) <ginsberg@cisco.com>
> Cc: lsr@ietf.org; spring@ietf.org; draft-ietf-isis-segment-routing-
> extensions.all@ietf.org; Peter Psenak (ppsenak) <ppsenak@cisco.com>
> Subject: RE: [spring] FlexAlgo and Global Adj-SIDs
>=20
> Les,
> Lots of thanks for a prompt response.
>=20
> I fully understand that the current SR extension drafts are too far advan=
ced
> for any significant changes.
>=20
> I also understand that Algo-specific Adj-SIDs require an update to RFC 84=
02
> because today it does not recognize any such entities.
> Therefore the discussion of use cases should probably start in the SPRING
> WG while effective the result would be "just" new Sub-TLV in IS-IS and OS=
PF
> with the actual work coming to the LSR WG.
>=20
> Any ideas as to what would be the best way to start this kind of discussi=
ons?
>=20
> Regards,
> Sasha
>=20
> Office: +972-39266302
> Cell:      +972-549266302
> Email:   Alexander.Vainshtein@ecitele.com
>=20
>=20
> -----Original Message-----
> From: Les Ginsberg (ginsberg) <ginsberg@cisco.com>
> Sent: Tuesday, March 5, 2019 6:37 PM
> To: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>; Peter
> Psenak (ppsenak) <ppsenak@cisco.com>
> Cc: lsr@ietf.org; spring@ietf.org; draft-ietf-isis-segment-routing-
> extensions.all@ietf.org
> Subject: RE: [spring] FlexAlgo and Global Adj-SIDs
>=20
> Sasha -
>=20
> draft-ietf-isis-segment-routing-extensions is currently in AD review - an=
d the
> companion OSPF document has already been approved and is waiting for a
> dependent draft to progress before publication as an RFC.
>=20
> It is too late to make significant changes.
>=20
> Further, while I agree with both your description and Peter's response,
> agreeing that this "could" be done is not equivalent to having consensus =
that
> it "should" be done.
> I think a more complete consideration of the deployment cases and the
> usefulness of such an extension should be discussed by the WG before we
> decide that we actually want to define such an extension.
>=20
>   Les
>=20
>=20
> > -----Original Message-----
> > From: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
> > Sent: Tuesday, March 05, 2019 8:29 AM
> > To: Peter Psenak (ppsenak) <ppsenak@cisco.com>
> > Cc: lsr@ietf.org; spring@ietf.org; draft-ietf-isis-segment-routing-
> > extensions.all@ietf.org
> > Subject: RE: [spring] FlexAlgo and Global Adj-SIDs
> >
> > Peter,
> > Lots of thanks for a prompt and very encouraging response.
> >
> > Do you think that the new Algo specific Adj-SID sub-TLV could be added
> > to the current IS-IS segment Routing Extensions draft, or should be
> > handled in a small dedicated document?
> >
> > Regards, and lots of thanks in advance, Sasha
> >
> > Office: +972-39266302
> > Cell:      +972-549266302
> > Email:   Alexander.Vainshtein@ecitele.com
> >
> > -----Original Message-----
> > From: Peter Psenak <ppsenak@cisco.com>
> > Sent: Tuesday, March 5, 2019 5:28 PM
> > To: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
> > Cc: lsr@ietf.org; spring@ietf.org; draft-ietf-isis-segment-routing-
> > extensions.all@ietf.org
> > Subject: Re: [spring] FlexAlgo and Global Adj-SIDs
> >
> > Hi Sasha,
> >
> > On 02/03/2019 18:57 , Alexander Vainshtein wrote:
> > > Peter,
> > > Lots of thanks for a prompt and hivhly informative response.
> > >
> > > It seems that per-FlexAlgo Adj-SIDs can be useful even if they are
> > > local
>=20
> __________________________________________________________
> _________________
>=20
> This e-mail message is intended for the recipient only and contains
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> received this
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From: Greg Mirsky <gregimirsky@gmail.com>
Date: Tue, 5 Mar 2019 19:24:10 -0800
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Hi Rakesh,
the common understanding of the TWAMP and TWAMP Light by IPPM WG is
reflected in draft-ietf-ippm-port-twamp-test
<https://datatracker.ietf.org/doc/draft-ietf-ippm-port-twamp-test/> (soon
to be published as RFC 8545). The work on STAMP is progressing and the base
specification, draft-ietf-ippm-stamp
<https://datatracker.ietf.org/doc/draft-ietf-ippm-stamp/>, is in WG LC
through March 15. Much appreciate your review and comments. Also, much
interested in your comments on draft-mirsky-ippm-stamp-option-tlv
<https://datatracker.ietf.org/doc/draft-mirsky-ippm-stamp-option-tlv/>. I
believe that there's a good reason for us to work together on STAMP
extensions that address specific SR scenarios.

Regards,
Greg

On Sun, Mar 3, 2019 at 6:17 AM Rakesh Gandhi (rgandhi) <rgandhi@cisco.com>
wrote:

> Thank you Greg for the thorough review of the document and your comments.
>
>
>
> Please see in line with <RG>=E2=80=A6
>
>
>
> *From: *Greg Mirsky <gregimirsky@gmail.com>
> *Date: *Thursday, February 28, 2019 at 7:05 PM
> *To: *"draft-gandhi-spring-twamp-srpm@ietf.org" <
> draft-gandhi-spring-twamp-srpm@ietf.org>, spring <spring@ietf.org>, IETF
> IPPM WG <ippm@ietf.org>
> *Subject: *Comments on draft-gandhi-spring-twamp-srpm
> *Resent-From: *<alias-bounces@ietf.org>
> *Resent-To: *"=3DSMTP:rgandhi@cisco. com" <rgandhi@cisco.com>, <
> cfilsfil@cisco.com>, <daniel.voyer@bell.ca>
> *Resent-Date: *Thursday, February 28, 2019 at 7:05 PM
>
>
>
> Dear Authors,
>
> I've read the draft and would share my comments with SPRING and IPPM WGs:
>
>
>    - Section 3.1.1
>
>
>    - what is introduced in this section? Note, that in OWAMP 'O' stands
>       for 'one-way', i.e., the receiver collects the measurement results.=
 RFC
>       4656 defines Client Fetch command to retrieve, possibly by the
>       Session-Sender, the measurement results.
>
> <RG> Idea is that the user provisions the UDP port and the attributes
> (e.g. timestamp format, authentication mode/type, etc. associated with th=
e
> UDP port) on both endpoints of SR paths. These configurations are used to
> interpret *WAMP(Light) payloads to provide delay and loss measurements. T=
he
> motivation is to eliminate the control-channel signaling - the spirit of =
SR.
>
>    - note that RFCs 4656 and 5357 defined the use only of NTP format for
>       timestamps. The use of PTP format was introduced by RFC 8186 for TW=
AMP only
>       as optional, not as the default mode. The default format for TWAMP-=
Test is
>       still NTP format. You may consider using the mechanism defined for
>       TWAMP-Control to change the default to PTP format.
>
> <RG> As mentioned above, the motivation of this work is to move away from
> the control-channel signaling to boot-strap PM sessions. So, we are not
> extending the control-channel signaling.
>
>    - Section 3.1.2
>
>
>    - a new format for Session-Sender's TWAMP-Test message introduced.
>       Note, that the format for Session-Sender TWAMP-Test message is the =
same as
>       defined in RFC 4656. If you want to define a new TWAMP-Test optiona=
l format
>       it first must be negotiated through TWAMP-Control protocol as has b=
een done
>       for all TWAMP extensions.
>       - how the format you've proposed is different from the one proposed
>       earlier in draft-xiao-ippm-twamp-ext-direct-loss
>       <https://tools.ietf.org/html/draft-xiao-ippm-twamp-ext-direct-loss-=
01>
>       .
>       - Your intention, if I understand correctly, is
>       to support direct-mode loss
>       measurement. draft-xiao-ippm-twamp-ext-direct-loss
>       proposed that earlier and with proper TWAMP-Control extension.
>       After the IPPM WG agreed to work on STAMP,
>       authors of draft-xiao-ippm-twamp-ext-direct-loss and STAMP agreed t=
o work
>       together and now the direct-mode loss measurement is part of
>       draft-mirsky-ippm-stamp-option-tlv
>       <https://datatracker.ietf.org/doc/draft-mirsky-ippm-stamp-option-tl=
v/?include_text=3D1>
>       .
>
> <RG> Your understanding is correct. Thank you for the background and
> pointing to the LM TLV. We can analyze to see if we can leverage the TLV.
> Again, we are not extending the control-channel signaling.
>
>    - the last bullet in the section refers to PSID but I couldn't find a
>       PSID field in any of the displayed formats, authenticated or not. I=
s it for
>       further versions?
>
> <RG> Ok, we will add the definition/detail in the next revision.
>
>    - Section 3.1.4.1
>
>
>    - what is illustrated in this sub-section? That TWAMP-Test message
>       with IP/UDP encapsulation can be carried over SR-MPLS tunnel?
>
> <RG> It shows how the measurement packet is carried over SR-MPLS Policy.
>
>    - Section 3.1.4.2
>
>
>    - same question as above.
>
> <RG> It shows how the measurement packet is carried over SRv6 Policy and
> what END function is used for timestamp and punting the packet.
>
>    - Section 4
>
>
>    - is the formula to calculate the packet loss using the direct-mode
>       measurement is worth repeating in RFC?
>
> <RG> It is good to have it at the early stage of the document. We can
> remove it later in the process.
>
>    - Section 5
>
>
>    - without the discussion of the impact on the Session-Sender that
>       reflected test packets may have, I cannot agree with the assumption=
:
>
>    The procedures for delay and loss measurement described in this
>
>    document for Point-to-Point (P2P) SR-MPLS Policies are also equally
>
>    applicable to the Point-to-Multipoint (P2MP) SR Policies.
>
>
>
> <RG> Yes, we can elaborate it in the next revision. Idea it that the
> querier uses the source address of the responders (i.e. leafs) to identif=
y
> the measurements to each leaf.
>
>
>    - Section 7
>
>
>    - OWAMP and TWAMP use HMAC-SHA1 for integrity protection. If your
>       intent is to use HMAC-SHA-256 in the authenticated mode for OWAMP a=
nd/or
>       TWAMP, then it may be supported as an optional extension with the p=
roper
>       extension in their respective control protocols. Should note that t=
he
>       use of HMAC-SHA-256 for STAMP was discussed at IPPM WG meeting in B=
angkok
>       and now is documented in the latest version of STAMP.
>
> <RG> Thanks for sharing this information. We will update the draft
> accordingly. This is also a property of the UDP port configured and both
> methods can be used. As mentioned earlier, we are moving away from using
> the control-channel signaling.
>
> Many thanks for the detailed review and feedbacks.
>
> Rakesh
>
>
>
> Regards,
>
> Greg
>
>
>
>
>

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<div dir=3D"ltr"><div dir=3D"ltr"><div dir=3D"ltr">Hi Rakesh,<div>the commo=
n understanding of the TWAMP and TWAMP Light by IPPM WG is reflected in=C2=
=A0<font face=3D"arial, helvetica, sans-serif"><a href=3D"https://datatrack=
er.ietf.org/doc/draft-ietf-ippm-port-twamp-test/"><span style=3D"color:rgb(=
32,33,36);font-variant-ligatures:no-contextual">draft-ietf-ippm-por</span><=
span style=3D"color:rgb(32,33,36);font-variant-ligatures:no-contextual">t-t=
wamp-test</span></a>=C2=A0(soon to be published as RFC 8545). The work on S=
TAMP is progressing and the base specification,=C2=A0<a href=3D"https://dat=
atracker.ietf.org/doc/draft-ietf-ippm-stamp/">draft-ietf-ippm-stamp</a>, is=
 in WG LC through March 15. Much appreciate your review and comments. Also,=
 much interested in your comments on=C2=A0<a href=3D"https://datatracker.ie=
tf.org/doc/draft-mirsky-ippm-stamp-option-tlv/">draft-mirsky-ippm-stamp-opt=
ion-tlv</a>. I believe=C2=A0that there&#39;s a good reason for us to work t=
ogether on STAMP extensions that address specific SR scenarios.</font></div=
><div><font face=3D"arial, helvetica, sans-serif"><br></font></div><div><fo=
nt face=3D"arial, helvetica, sans-serif">Regards,</font></div><div><font fa=
ce=3D"arial, helvetica, sans-serif">Greg</font></div></div></div></div><br>=
<div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Sun, Ma=
r 3, 2019 at 6:17 AM Rakesh Gandhi (rgandhi) &lt;<a href=3D"mailto:rgandhi@=
cisco.com">rgandhi@cisco.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 bgcolor=3D"white" lang=3D"EN-US">
<div class=3D"gmail-m_-261865343859794394WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-family:Calibri">Thank you Greg f=
or the thorough review of the document and your comments.<u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Calibri"><u></u>=C2=A0<u>=
</u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Calibri">Please see in li=
ne with &lt;RG&gt;=E2=80=A6<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Calibri"><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"><b><span style=3D"font-family:Calibri;color:black">F=
rom: </span>
</b><span style=3D"font-family:Calibri;color:black">Greg Mirsky &lt;<a href=
=3D"mailto:gregimirsky@gmail.com" target=3D"_blank">gregimirsky@gmail.com</=
a>&gt;<br>
<b>Date: </b>Thursday, February 28, 2019 at 7:05 PM<br>
<b>To: </b>&quot;<a href=3D"mailto:draft-gandhi-spring-twamp-srpm@ietf.org"=
 target=3D"_blank">draft-gandhi-spring-twamp-srpm@ietf.org</a>&quot; &lt;<a=
 href=3D"mailto:draft-gandhi-spring-twamp-srpm@ietf.org" target=3D"_blank">=
draft-gandhi-spring-twamp-srpm@ietf.org</a>&gt;, spring &lt;<a href=3D"mail=
to:spring@ietf.org" target=3D"_blank">spring@ietf.org</a>&gt;, IETF IPPM WG=
 &lt;<a href=3D"mailto:ippm@ietf.org" target=3D"_blank">ippm@ietf.org</a>&g=
t;<br>
<b>Subject: </b>Comments on draft-gandhi-spring-twamp-srpm<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>&quot;=3DSMTP:rgandhi@cisco. com&quot; &lt;<a href=3D"mai=
lto:rgandhi@cisco.com" target=3D"_blank">rgandhi@cisco.com</a>&gt;, &lt;<a =
href=3D"mailto:cfilsfil@cisco.com" target=3D"_blank">cfilsfil@cisco.com</a>=
&gt;, &lt;<a href=3D"mailto:daniel.voyer@bell.ca" target=3D"_blank">daniel.=
voyer@bell.ca</a>&gt;<br>
<b>Resent-Date: </b>Thursday, February 28, 2019 at 7:05 PM<u></u><u></u></s=
pan></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<div>
<div>
<div>
<div>
<div>
<p class=3D"MsoNormal">Dear Authors, <u></u><u></u></p>
<div>
<p class=3D"MsoNormal">I&#39;ve read the draft and would share my comments =
with SPRING and IPPM WGs:<u></u><u></u></p>
</div>
</div>
</div>
</div>
</div>
<blockquote style=3D"margin-left:30pt;margin-right:0cm">
<div>
<div>
<div>
<div>
<div>
<ul type=3D"disc">
<li class=3D"MsoNormal">
Section 3.1.1<u></u><u></u></li></ul>
<ul type=3D"disc">
<ul type=3D"circle">
<li class=3D"MsoNormal">
what is introduced in this section? Note, that in OWAMP &#39;O&#39; stands =
for &#39;one-way&#39;, i.e., the receiver collects the measurement results.=
 RFC 4656 defines Client Fetch command to retrieve, possibly by the Session=
-Sender, the measurement results.<u></u><u></u></li></ul>
</ul>
<p class=3D"MsoNormal">&lt;RG&gt; Idea is that the user provisions the UDP =
port and the attributes (e.g. timestamp format, authentication mode/type, e=
tc. associated with the UDP port) on both endpoints of SR
 paths. These configurations are used to interpret *WAMP(Light) payloads to=
 provide delay and loss measurements. The motivation is to eliminate the co=
ntrol-channel signaling - the spirit of SR.<u></u><u></u></p>
<ul type=3D"disc">
<ul type=3D"circle">
<li class=3D"MsoNormal">
note that RFCs 4656 and 5357 defined the use only of NTP format for timesta=
mps. The use of PTP format was introduced by RFC 8186 for TWAMP only as opt=
ional, not as the default mode. The default format for TWAMP-Test is still =
NTP format. You may consider using
 the mechanism defined for TWAMP-Control to change the default=C2=A0to PTP =
format.<u></u><u></u></li></ul>
</ul>
<p class=3D"MsoNormal">&lt;RG&gt; As mentioned above, the motivation of thi=
s work is to move away from the control-channel signaling to boot-strap PM =
sessions. So, we are not extending the control-channel signaling.<u></u><u>=
</u></p>
<ul type=3D"disc">
<li class=3D"MsoNormal">
Section 3.1.2<u></u><u></u></li></ul>
<ul type=3D"disc">
<ul type=3D"circle">
<li class=3D"MsoNormal">
a new format for Session-Sender&#39;s TWAMP-Test message introduced. Note, =
that the format for Session-Sender TWAMP-Test message is the same as define=
d in RFC 4656. If you want to define a new TWAMP-Test optional format it fi=
rst must be negotiated through TWAMP-Control
 protocol as has been done for all TWAMP extensions.<u></u><u></u></li><li =
class=3D"MsoNormal">
how the format you&#39;ve proposed is different from the one proposed earli=
er=C2=A0in=C2=A0<a href=3D"https://tools.ietf.org/html/draft-xiao-ippm-twam=
p-ext-direct-loss-01" target=3D"_blank">draft-xiao-ippm-twamp-ext-direct-lo=
ss</a>.<u></u><u></u></li><li class=3D"MsoNormal">
Your intention, if I understand correctly, is to=C2=A0support=C2=A0direct-m=
ode loss measurement.=C2=A0draft-xiao-ippm-twamp-ext-direct-loss proposed=
=C2=A0that=C2=A0earlier=C2=A0and=C2=A0with proper=C2=A0TWAMP-Control extens=
ion. After=C2=A0the=C2=A0IPPM WG=C2=A0agreed=C2=A0to=C2=A0work on=C2=A0STAM=
P, authors=C2=A0of=C2=A0draft-xiao-ippm-twamp-ext-direct-loss
 and STAMP agreed to=C2=A0work together and now=C2=A0the direct-mode loss m=
easurement=C2=A0is part of=C2=A0<a href=3D"https://datatracker.ietf.org/doc=
/draft-mirsky-ippm-stamp-option-tlv/?include_text=3D1" target=3D"_blank">dr=
aft-mirsky-ippm-stamp-option-tlv</a>.<u></u><u></u></li></ul>
</ul>
<p class=3D"MsoNormal">&lt;RG&gt; Your understanding is correct. Thank you =
for the background and pointing to the LM TLV. We can analyze to see if we =
can leverage the TLV. Again, we are not extending the control-channel
 signaling.<u></u><u></u></p>
<ul type=3D"disc">
<ul type=3D"circle">
<li class=3D"MsoNormal">
the last bullet in the section refers to PSID but I couldn&#39;t find a PSI=
D field in any of the displayed formats, authenticated or not. Is it for fu=
rther versions?<u></u><u></u></li></ul>
</ul>
<p class=3D"MsoNormal">&lt;RG&gt; Ok, we will add the definition/detail in =
the next revision.<u></u><u></u></p>
<ul type=3D"disc">
<li class=3D"MsoNormal">
Section 3.1.4.1<u></u><u></u></li></ul>
<ul type=3D"disc">
<ul type=3D"circle">
<li class=3D"MsoNormal">
what is illustrated in this sub-section? That TWAMP-Test message with IP/UD=
P encapsulation can be carried over SR-MPLS tunnel?<u></u><u></u></li></ul>
</ul>
<p class=3D"MsoNormal">&lt;RG&gt; It shows how the measurement packet is ca=
rried over SR-MPLS Policy.<u></u><u></u></p>
<ul type=3D"disc">
<li class=3D"MsoNormal">
Section 3.1.4.2<u></u><u></u></li></ul>
<ul type=3D"disc">
<ul type=3D"circle">
<li class=3D"MsoNormal">
same question as above.<u></u><u></u></li></ul>
</ul>
<p class=3D"MsoNormal">&lt;RG&gt; It shows how the measurement packet is ca=
rried over SRv6 Policy and what END function is used for timestamp and punt=
ing the packet.<u></u><u></u></p>
<ul type=3D"disc">
<li class=3D"MsoNormal">
Section 4<u></u><u></u></li></ul>
<ul type=3D"disc">
<ul type=3D"circle">
<li class=3D"MsoNormal">
is the formula to calculate the packet loss using the direct-mode measureme=
nt is worth repeating in RFC?<u></u><u></u></li></ul>
</ul>
<p class=3D"MsoNormal">&lt;RG&gt; It is good to have it at the early stage =
of the document. We can remove it later in the process.<u></u><u></u></p>
<ul type=3D"disc">
<li class=3D"MsoNormal">
Section 5<u></u><u></u></li></ul>
<ul type=3D"disc">
<ul type=3D"circle">
<li class=3D"MsoNormal">
without the discussion of the impact on the Session-Sender that reflected t=
est packets may have, I cannot agree with the assumption:<u></u><u></u></li=
></ul>
</ul>
</div>
</div>
</div>
</div>
</div>
</blockquote>
</div>
<blockquote style=3D"margin-left:30pt;margin-right:0cm">
<div>
<blockquote style=3D"margin-left:30pt;margin-right:0cm">
<blockquote style=3D"margin-left:30pt;margin-right:0cm">
<div>
<div>
<div>
<div>
<div>
<div>
<p class=3D"MsoNormal">=C2=A0 =C2=A0The procedures for delay and loss measu=
rement described in this<u></u><u></u></p>
</div>
</div>
</div>
</div>
</div>
</div>
</blockquote>
</blockquote>
</div>
<div>
<blockquote style=3D"margin-left:30pt;margin-right:0cm">
<blockquote style=3D"margin-left:30pt;margin-right:0cm">
<div>
<div>
<div>
<div>
<div>
<p class=3D"MsoNormal">=C2=A0 =C2=A0document for Point-to-Point (P2P) SR-MP=
LS Policies are also equally<u></u><u></u></p>
</div>
</div>
</div>
</div>
</div>
</blockquote>
</blockquote>
</div>
<div>
<blockquote style=3D"margin-left:30pt;margin-right:0cm">
<blockquote style=3D"margin-left:30pt;margin-right:0cm">
<div>
<div>
<div>
<div>
<div>
<p class=3D"MsoNormal">=C2=A0 =C2=A0applicable to the Point-to-Multipoint (=
P2MP) SR Policies.<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">&lt;RG&gt; Yes, we can elaborate it in the next revi=
sion. Idea it that the querier uses the source address of the responders (i=
.e. leafs) to identify the measurements to each leaf.<u></u><u></u></p>
</div>
</div>
</div>
</div>
</div>
</blockquote>
</blockquote>
</div>
</blockquote>
<div>
<blockquote style=3D"margin-left:30pt;margin-right:0cm">
<ul type=3D"disc">
<li class=3D"MsoNormal">
Section 7<u></u><u></u></li></ul>
<ul type=3D"disc">
<ul type=3D"circle">
<li class=3D"MsoNormal">
OWAMP and TWAMP use HMAC-SHA1 for integrity protection. If your intent is t=
o use HMAC-SHA-256 in the authenticated mode for OWAMP and/or TWAMP, then i=
t may be supported as an optional extension with the proper extension in th=
eir respective control protocols.
 Should note that the use=C2=A0of HMAC-SHA-256 for STAMP was discussed at I=
PPM WG meeting in Bangkok and now is documented in the latest version of ST=
AMP.<u></u><u></u></li></ul>
</ul>
<p class=3D"MsoNormal">&lt;RG&gt; Thanks for sharing this information. We w=
ill update the draft accordingly. This is also a property of the UDP port c=
onfigured and both methods can be used. As mentioned earlier,
 we are moving away from using the control-channel signaling.<u></u><u></u>=
</p>
<p class=3D"MsoNormal">Many thanks for the detailed review and feedbacks.<u=
></u><u></u></p>
<p class=3D"MsoNormal">Rakesh<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</blockquote>
<blockquote style=3D"margin-left:30pt;margin-right:0cm">
<div>
<p class=3D"MsoNormal">Regards,<u></u><u></u></p>
</div>
</blockquote>
<blockquote style=3D"margin-left:30pt;margin-right:0cm">
<div>
<p class=3D"MsoNormal">Greg<u></u><u></u></p>
</div>
</blockquote>
</div>
<blockquote style=3D"margin-left:30pt;margin-right:0cm">
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
</blockquote>
<div>
<div>
<div>
<div>
<div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>

</blockquote></div>

--0000000000008a295f0583648652--


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Date: Wed, 6 Mar 2019 09:26:35 +0530
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Subject: [spring] Questions on Segment Routing
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Hi Experts,

I have few questions on Segment Routing. Can you please clarify my doubts.

1) How OAM can be done in segment-routed networks ?

     I think, MPLS OAM is not possible with SR as network infrastructure
doesn't have any LSP state.

     With SDN controller in place, do we really need traditional OAM ?

     SDN controller can do OAM, but at what cost (like BGP-LS) ?



2) How will the traffic handoff happen from aggregate network to core
network ?

    core is running RSVP-TE, so IP handoff  can be done on edge router ?

    I don't think, SDN controller can control RSVP enabled routers. So, how
it is to make end-to-end TE i.e from Aggregate router to Core Router ?



3) can prefix sid be used to replace VRF in L3VPN scenario? (or any other
way in SR can avoid vrf ?)

     Assume, on a router there are two interfaces. one is 10.1.1.0 VRF-1,
another one is VRF2-10.1.1.0.

     Which SID should I use to differentiate them? Can I use, prefix SID in
this case ?

     Is the below will work ?

     Eth1 - VRF-1: 10.1.1.0  == Prefix SID: 1000

     Eth2 - VRF-2: 10.1.1.0  == Prefix SID: 2000



4) How to handle multicast/broadcast using SR ?



5) SRv6 stacking ipv6 SRH might hit MTU limit somewhere in the network.

     Is my understanding correct ?



6) Does VRRP work with SR ? how fault would be propagated in a necklace
topology?



7) Is there any known issues related to interop with different vendors ?


8) While programming Node-SID on MPLS ILM table, can I assume node-SID
would always be programmed with SWAP operation except on PHP node?


Thanks,

__kals__

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Content-Type: text/html; charset="UTF-8"
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<div dir=3D"ltr">Hi Experts,<div><br></div><div>I have few questions on Seg=
ment Routing. Can you please clarify my doubts.</div><div><br></div><div><p=
 style=3D"background-image:initial;background-position:initial;background-s=
ize:initial;background-repeat:initial;background-origin:initial;background-=
clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times=
 New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-serif;color=
:black">1) How OAM can be=C2=A0done in=C2=A0segment-routed networks ?</span=
></p><p style=3D"background-image:initial;background-position:initial;backg=
round-size:initial;background-repeat:initial;background-origin:initial;back=
ground-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quo=
t;Times New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-seri=
f;color:black">=C2=A0 =C2=A0 =C2=A0I think, MPLS OAM is not possible with S=
R as=C2=A0</span><span style=3D"color:rgb(0,0,0);font-family:Calibri,sans-s=
erif">network infrastructure doesn&#39;t have any LSP state.</span></p>

<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-serif;col=
or:black">=C2=A0 =C2=A0 =C2=A0W</span><span style=3D"color:black;font-famil=
y:Calibri,sans-serif;font-size:12pt">ith SDN controller in place,=C2=A0do w=
e
really need traditional OAM=C2=A0?</span></p>

<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-serif;col=
or:black">=C2=A0<span style=3D"background-image:initial;background-position=
:initial;background-size:initial;background-repeat:initial;background-origi=
n:initial;background-clip:initial">=C2=A0 =C2=A0=C2=A0SDN
controller can do=C2=A0OAM, but at what cost (like BGP-LS) ?</span></span><=
/p>

<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-serif;col=
or:black">=C2=A0</span></p>

<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-serif;col=
or:black;background-image:initial;background-position:initial;background-si=
ze:initial;background-repeat:initial;background-origin:initial;background-c=
lip:initial">2) How will the traffic handoff happen from
aggregate network to core network ?</span><span style=3D"font-family:Calibr=
i,sans-serif;color:black"></span></p>

<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-serif;col=
or:black;background-image:initial;background-position:initial;background-si=
ze:initial;background-repeat:initial;background-origin:initial;background-c=
lip:initial">=C2=A0 =C2=A0 core is running RSVP-TE, so=C2=A0IP
handoff=C2=A0 can be done=C2=A0on edge router ?</span><span style=3D"font-f=
amily:Calibri,sans-serif;color:black"></span></p>

<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-serif;col=
or:black">=C2=A0 =C2=A0 I don&#39;t think, SDN controller can=C2=A0control =
RSVP
enabled=C2=A0routers. So,=C2=A0</span><span style=3D"color:black;font-famil=
y:Calibri,sans-serif;font-size:12pt">how it is to make end-to-end=C2=A0TE i=
.e from Aggregate router to Core Router ?</span></p>

<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-serif;col=
or:black">=C2=A0</span></p>

<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-serif;col=
or:black">3)=C2=A0</span><span style=3D"font-size:12pt;color:black;font-fam=
ily:Calibri,sans-serif">can prefix sid be used to replace VRF=C2=A0in L3VPN
scenario?=C2=A0</span><span style=3D"font-size:12pt;background-image:initia=
l;background-position:initial;background-size:initial;background-repeat:ini=
tial;background-origin:initial;background-clip:initial;color:black;font-fam=
ily:Calibri,sans-serif">(or any other way in SR can avoid
vrf=C2=A0?)</span></p>

<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-serif;col=
or:black">=C2=A0 =C2=A0 =C2=A0Assume, on a router there are two interfaces.=
 one is 10.1.1.0 VRF-1, another one is VRF2-10.1.1.0.=C2=A0</span></p><p st=
yle=3D"background-image:initial;background-position:initial;background-size=
:initial;background-repeat:initial;background-origin:initial;background-cli=
p:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times Ne=
w Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-serif;color:bl=
ack">=C2=A0 =C2=A0 =C2=A0Which SID should I use to differentiate them? Can =
I use, prefix SID in this case ?</span></p><p style=3D"background-image:ini=
tial;background-position:initial;background-size:initial;background-repeat:=
initial;background-origin:initial;background-clip:initial;margin:0in 0in 0.=
0001pt;font-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><span =
style=3D"font-family:Calibri,sans-serif;color:black">=C2=A0 =C2=A0 =C2=A0Is=
 the below will work ?</span></p><p style=3D"background-image:initial;backg=
round-position:initial;background-size:initial;background-repeat:initial;ba=
ckground-origin:initial;background-clip:initial;margin:0in 0in 0.0001pt;fon=
t-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><span style=3D"f=
ont-family:Calibri,sans-serif;color:black">=C2=A0 =C2=A0 =C2=A0Eth1 - VRF-1=
: 10.1.1.0=C2=A0 =3D=3D Prefix SID: 1000</span></p><p style=3D"background-i=
mage:initial;background-position:initial;background-size:initial;background=
-repeat:initial;background-origin:initial;background-clip:initial;margin:0i=
n 0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Roman&quot;,serif=
"><span style=3D"color:rgb(0,0,0);font-family:Calibri,sans-serif">=C2=A0 =
=C2=A0 =C2=A0Eth2 - VRF-2: 10.1.1.0=C2=A0 =3D=3D Prefix SID: 2000</span>=C2=
=A0=C2=A0<span style=3D"font-family:Calibri,sans-serif;color:black"><br></s=
pan></p>

<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-serif;col=
or:black">=C2=A0</span></p>

<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-serif;col=
or:black">4) How to handle multicast/broadcast using SR=C2=A0?</span></p>

<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-serif;col=
or:black">=C2=A0</span></p>

<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-serif;col=
or:black">5) SRv6 stacking ipv6 SRH might hit MTU limit somewhere in the
network.</span></p><p style=3D"background-image:initial;background-position=
:initial;background-size:initial;background-repeat:initial;background-origi=
n:initial;background-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;fo=
nt-family:&quot;Times New Roman&quot;,serif"><span style=3D"font-family:Cal=
ibri,sans-serif;color:black">=C2=A0 =C2=A0 =C2=A0Is my understanding correc=
t ?</span></p>

<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-serif;col=
or:black">=C2=A0</span></p>

<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-serif;col=
or:black">6) Does=C2=A0VRRP work=C2=A0with SR ?=C2=A0how fault would be
propagated=C2=A0in a necklace topology?=C2=A0</span></p>

<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-serif;col=
or:black">=C2=A0</span></p>

<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-serif;col=
or:black">7) Is there any known issues related to=C2=A0interop with=C2=A0di=
fferent vendors ?</span></p><p style=3D"background-image:initial;background=
-position:initial;background-size:initial;background-repeat:initial;backgro=
und-origin:initial;background-clip:initial;margin:0in 0in 0.0001pt;font-siz=
e:12pt;font-family:&quot;Times New Roman&quot;,serif"><span style=3D"font-f=
amily:Calibri,sans-serif;color:black"><br></span></p><p style=3D"background=
-image:initial;background-position:initial;background-size:initial;backgrou=
nd-repeat:initial;background-origin:initial;background-clip:initial;margin:=
0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Roman&quot;,ser=
if"><span style=3D"font-family:Calibri,sans-serif;color:black">8) While pro=
gramming Node-SID on MPLS ILM table, can I assume node-SID would always be =
programmed with SWAP operation except on PHP node?</span></p><p style=3D"ba=
ckground-image:initial;background-position:initial;background-size:initial;=
background-repeat:initial;background-origin:initial;background-clip:initial=
;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Roman&q=
uot;,serif"><span style=3D"font-family:Calibri,sans-serif;color:black"><br>=
</span></p><p style=3D"background-image:initial;background-position:initial=
;background-size:initial;background-repeat:initial;background-origin:initia=
l;background-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-famil=
y:&quot;Times New Roman&quot;,serif"><span style=3D"color:black;font-family=
:Calibri,sans-serif;font-size:12pt">Thanks,</span><br></p><p style=3D"backg=
round-image:initial;background-position:initial;background-size:initial;bac=
kground-repeat:initial;background-origin:initial;background-clip:initial;ma=
rgin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Roman&quot=
;,serif"><span style=3D"font-family:Calibri,sans-serif;color:black">__kals_=
_</span></p></div></div>

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From: Dhruv Dhody <dhruv.ietf@gmail.com>
Date: Wed, 6 Mar 2019 10:20:52 +0530
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To: bruno.decraene@orange.com
Cc: SPRING WG <spring@ietf.org>,  "draft-cheng-spring-mpls-path-segment@ietf.org" <draft-cheng-spring-mpls-path-segment@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/tdtUiwaA8y0DljR7Lv0sY9os3yc>
Subject: Re: [spring] Working Group Adoption Call for draft-cheng-spring-mpls-path-segment
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Hi Bruno,

I support adoption of this work in Spring.
This would also give us confidence in progressing the related work in PCE.

Thanks!
Dhruv

On Wed, Feb 20, 2019 at 2:33 PM <bruno.decraene@orange.com> wrote:

> Hi SPRING WG,
>
> This email initiates a two week call for working group adoption for
> draft-cheng-spring-mpls-path-segment.
>
> Please indicate your support, comments, or objection, for adopting this
> draft as a working group item by March 6th 2019.
> We are particularly interested in hearing from working group members that
> are not co-authors of this draft.
> We are also looking for volunteers who would be ready to perform a
> technical review of this work at some later stage, such as before or during
> WG the last call.
>
> Additionally, there are currently 7 authors listed on this document.
> Please trim this to <= 5 front-page authors, utilising a "Contributors"
> section if required for the others. An approach to achieving this would be
> to list ~2 editors as the front-page authors.
>
> In parallel to this adoption call, I will send an IPR call for this
> document. We will need all authors and contributors to confirm their IPR
> position on this document.
>
> (1) https://tools.ietf.org/html/draft-cheng-spring-mpls-path-segment
>
> Thanks,
> --Bruno & Rob.
>
>
>
> _________________________________________________________________________________________________________________________
>
> 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
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>
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> they should not be distributed, used or copied without authorisation.
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> modified, changed or falsified.
> Thank you.
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

--000000000000283008058365be84
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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:monospac=
e,monospace">Hi Bruno,=C2=A0</div><div class=3D"gmail_default" style=3D"fon=
t-family:monospace,monospace"><br></div><div class=3D"gmail_default" style=
=3D"font-family:monospace,monospace">I support adoption of this work in Spr=
ing.=C2=A0</div><div class=3D"gmail_default" style=3D"font-family:monospace=
,monospace"><span style=3D"font-size:small">This would also give us confide=
nce in progressing the related work in PCE.</span></div><div class=3D"gmail=
_default" style=3D"font-family:monospace,monospace"><span style=3D"font-siz=
e:small"><br></span></div><div class=3D"gmail_default" style=3D"font-family=
:monospace,monospace"><span style=3D"font-size:small">Thanks!=C2=A0</span><=
/div><div class=3D"gmail_default" style=3D"font-family:monospace,monospace"=
><span style=3D"font-size:small">Dhruv=C2=A0</span><br></div></div><br><div=
 class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Wed, Feb 20=
, 2019 at 2:33 PM &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">Hi SPRING WG,<br>
<br>
This email initiates a two week call for working group adoption for draft-c=
heng-spring-mpls-path-segment.<br>
<br>
Please indicate your support, comments, or objection, for adopting this dra=
ft as a working group item by March 6th 2019.<br>
We are particularly interested in hearing from working group members that a=
re not co-authors of this draft.<br>
We are also looking for volunteers who would be ready to perform a technica=
l review of this work at some later stage, such as before or during WG the =
last call.<br>
<br>
Additionally, there are currently 7 authors listed on this document. Please=
 trim this to &lt;=3D 5 front-page authors, utilising a &quot;Contributors&=
quot; section if required for the others. An approach to achieving this wou=
ld be to list ~2 editors as the front-page authors.<br>
<br>
In parallel to this adoption call, I will send an IPR call for this documen=
t. We will need all authors and contributors to confirm their IPR position =
on this document.<br>
<br>
(1) <a href=3D"https://tools.ietf.org/html/draft-cheng-spring-mpls-path-seg=
ment" rel=3D"noreferrer" target=3D"_blank">https://tools.ietf.org/html/draf=
t-cheng-spring-mpls-path-segment</a><br>
<br>
Thanks,<br>
--Bruno &amp; Rob.<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: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
To: "ask-segment-routing@cisco.com" <ask-segment-routing@cisco.com>, "Stefano Previdi (sprevidi)" <sprevidi@cisco.com>, "cfilsfil@cisco.com" <cfilsfil@cisco.com>, "Ahmed Bashandy (bashandy)" <bashandy@cisco.com>, "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, "Peter Psenak (ppsenak)" <ppsenak@cisco.com>, "martin.pilka@pantheon.tech" <martin.pilka@pantheon.tech>, "spring@ietf.org" <spring@ietf.org>, tech_kals Kals <tech.kals@gmail.com>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/CBi0xBQjSRroptZKF8kmDWN9xn4>
Subject: Re: [spring] Questions on Segment Routing
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Kals,
Some short answers reflecting my personal understandings
1. LSP Ping and Traceroute work just fine with SR-MPLS. Therefore on-deman=
d OAM is not a problem.
2. There are several options for proactive OAM in SR-MPLS, including usage=
 of Path Segments.
3. Prefix SIDs are NOT a replacement for BGP/MPLS IP VPNs.

Thumb typed by Sasha Vainshtein

________________________________
From: spring <spring-bounces@ietf.org> on behalf of tech_kals Kals <tech.k=
als@gmail.com>
Sent: Wednesday, March 6, 2019 5:56:35 AM
To: ask-segment-routing@cisco.com; Stefano Previdi (sprevidi); cfilsfil@ci=
sco.com; Ahmed Bashandy (bashandy); Les Ginsberg (ginsberg); Peter Psenak =
(ppsenak); martin.pilka@pantheon.tech; spring@ietf.org
Subject: [spring] Questions on Segment Routing

Hi Experts,

I have few questions on Segment Routing. Can you please clarify my doubts.=



1) How OAM can be done in segment-routed networks ?

     I think, MPLS OAM is not possible with SR as network infrastructure d=
oesn't have any LSP state.

     With SDN controller in place, do we really need traditional OAM ?

     SDN controller can do OAM, but at what cost (like BGP-LS) ?



2) How will the traffic handoff happen from aggregate network to core netw=
ork ?

    core is running RSVP-TE, so IP handoff  can be done on edge router ?

    I don't think, SDN controller can control RSVP enabled routers. So, ho=
w it is to make end-to-end TE i..e from Aggregate router to Core Router ?



3) can prefix sid be used to replace VRF in L3VPN scenario? (or any other =
way in SR can avoid vrf ?)

     Assume, on a router there are two interfaces. one is 10.1.1.0 VRF-1, =
another one is VRF2-10.1.1.0.

     Which SID should I use to differentiate them? Can I use, prefix SID i=
n this case ?

     Is the below will work ?

     Eth1 - VRF-1: 10.1.1.0  =3D=3D Prefix SID: 1000

     Eth2 - VRF-2: 10.1.1.0  =3D=3D Prefix SID: 2000



4) How to handle multicast/broadcast using SR ?



5) SRv6 stacking ipv6 SRH might hit MTU limit somewhere in the network.

     Is my understanding correct ?



6) Does VRRP work with SR ? how fault would be propagated in a necklace to=
pology?



7) Is there any known issues related to interop with different vendors ?


8) While programming Node-SID on MPLS ILM table, can I assume node-SID wou=
ld always be programmed with SWAP operation except on PHP node?


Thanks,

__kals__

__________________________________________________________________________=
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<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dus-ascii=
">
<meta content=3D"text/html; charset=3Dutf-8">
</head>
<body>
<div dir=3D"auto" style=3D"direction:ltr; margin:0; padding:0; font-family=
:sans-serif; font-size:11pt; color:black">
Kals, <br>
</div>
<div dir=3D"auto" style=3D"direction:ltr; margin:0; padding:0; font-family=
:sans-serif; font-size:11pt; color:black">
Some short answers reflecting my personal understandings<br>
</div>
<div dir=3D"auto" style=3D"direction:ltr; margin:0; padding:0; font-family=
:sans-serif; font-size:11pt; color:black">
1. LSP Ping and Traceroute work just fine with SR-MPLS. Therefore on-deman=
d OAM is not a problem.<br>
</div>
<div dir=3D"auto" style=3D"direction:ltr; margin:0; padding:0; font-family=
:sans-serif; font-size:11pt; color:black">
2. There are several options for proactive OAM in SR-MPLS, including usage=
 of Path Segments.<br>
</div>
<div dir=3D"auto" style=3D"direction:ltr; margin:0; padding:0; font-family=
:sans-serif; font-size:11pt; color:black">
3. Prefix SIDs are NOT a replacement for BGP/MPLS IP VPNs.<br>
<br>
</div>
<div dir=3D"auto" style=3D"direction:ltr; margin:0; padding:0; font-family=
:sans-serif; font-size:11pt; color:black">
<div dir=3D"auto" style=3D"direction:ltr; margin:0; padding:0; font-family=
:sans-serif; font-size:11pt; color:black">
Thumb typed by Sasha Vainshtein</div>
<br>
</div>
<hr tabindex=3D"-1" style=3D"display:inline-block; width:98%">
<div id=3D"divRplyFwdMsg" dir=3D"ltr"><font face=3D"Calibri, sans-serif" c=
olor=3D"#000000" style=3D"font-size:11pt"><b>From:</b> spring &lt;spring-b=
ounces@ietf.org&gt; on behalf of tech_kals Kals &lt;tech.kals@gmail.com&gt=
;<br>
<b>Sent:</b> Wednesday, March 6, 2019 5:56:35 AM<br>
<b>To:</b> ask-segment-routing@cisco.com; Stefano Previdi (sprevidi); cfil=
sfil@cisco.com; Ahmed Bashandy (bashandy); Les Ginsberg (ginsberg); Peter =
Psenak (ppsenak); martin.pilka@pantheon.tech; spring@ietf.org<br>
<b>Subject:</b> [spring] Questions on Segment Routing</font>
<div>&nbsp;</div>
</div>
<div>
<div dir=3D"ltr">Hi Experts,
<div><br>
</div>
<div>I have few questions on Segment Routing. Can you please clarify my do=
ubts.</div>
<div><br>
</div>
<div>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black">1) How OAM can=
 be&nbsp;done in&nbsp;segment-routed networks ?</span></p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black">&nbsp; &nbsp; =
&nbsp;I think, MPLS OAM is not possible with SR as&nbsp;</span><span style=
=3D"color:rgb(0,0,0); font-family:Calibri,sans-serif">network infrastructu=
re doesn't have any LSP state.</span></p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black">&nbsp; &nbsp; =
&nbsp;W</span><span style=3D"color:black; font-family:Calibri,sans-serif; =
font-size:12pt">ith SDN controller in place,&nbsp;do we really need tradit=
ional OAM&nbsp;?</span></p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black">&nbsp;<span st=
yle=3D"background-image:initial; background-position:initial; background-s=
ize:initial; background-repeat:initial; background-origin:initial; backgro=
und-clip:initial">&nbsp; &nbsp;&nbsp;SDN controller can do&nbsp;OAM,
 but at what cost (like BGP-LS) ?</span></span></p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black">&nbsp;</span><=
/p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black; background-ima=
ge:initial; background-position:initial; background-size:initial; backgrou=
nd-repeat:initial; background-origin:initial; background-clip:initial">2) =
How will the traffic handoff happen from
 aggregate network to core network ?</span><span style=3D"font-family:Cali=
bri,sans-serif; color:black"></span></p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black; background-ima=
ge:initial; background-position:initial; background-size:initial; backgrou=
nd-repeat:initial; background-origin:initial; background-clip:initial">&nb=
sp; &nbsp; core is running RSVP-TE, so&nbsp;IP handoff&nbsp;
 can be done&nbsp;on edge router ?</span><span style=3D"font-family:Calibr=
i,sans-serif; color:black"></span></p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black">&nbsp; &nbsp; =
I don't think, SDN controller can&nbsp;control RSVP enabled&nbsp;routers. =
So,&nbsp;</span><span style=3D"color:black; font-family:Calibri,sans-serif=
; font-size:12pt">how it is to make end-to-end&nbsp;TE i..e from Aggregate=

 router to Core Router ?</span></p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black">&nbsp;</span><=
/p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black">3)&nbsp;</span=
><span style=3D"font-size:12pt; color:black; font-family:Calibri,sans-seri=
f">can prefix sid be used to replace VRF&nbsp;in L3VPN scenario?&nbsp;</sp=
an><span style=3D"font-size:12pt; background-image:initial; background-pos=
ition:initial; background-size:initial; background-repeat:initial; backgro=
und-origin:initial; background-clip:initial; color:black; font-family:Cali=
bri,sans-serif">(or
 any other way in SR can avoid vrf&nbsp;?)</span></p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black">&nbsp; &nbsp; =
&nbsp;Assume, on a router there are two interfaces. one is 10.1.1.0 VRF-1,=
 another one is VRF2-10.1.1.0.&nbsp;</span></p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black">&nbsp; &nbsp; =
&nbsp;Which SID should I use to differentiate them? Can I use, prefix SID =
in this case ?</span></p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black">&nbsp; &nbsp; =
&nbsp;Is the below will work ?</span></p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black">&nbsp; &nbsp; =
&nbsp;Eth1 - VRF-1: 10.1.1.0&nbsp; =3D=3D Prefix SID: 1000</span></p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"color:rgb(0,0,0); font-family:Calibri,sans-serif">&nbsp; &n=
bsp; &nbsp;Eth2 - VRF-2: 10.1.1.0&nbsp; =3D=3D Prefix SID: 2000</span>&nbs=
p;&nbsp;<span style=3D"font-family:Calibri,sans-serif; color:black"><br>
</span></p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black">&nbsp;</span><=
/p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black">4) How to hand=
le multicast/broadcast using SR&nbsp;?</span></p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black">&nbsp;</span><=
/p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black">5) SRv6 stacki=
ng ipv6 SRH might hit MTU limit somewhere in the network.</span></p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black">&nbsp; &nbsp; =
&nbsp;Is my understanding correct ?</span></p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black">&nbsp;</span><=
/p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black">6) Does&nbsp;V=
RRP work&nbsp;with SR ?&nbsp;how fault would be propagated&nbsp;in a neckl=
ace topology?&nbsp;</span></p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black">&nbsp;</span><=
/p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black">7) Is there an=
y known issues related to&nbsp;interop with&nbsp;different vendors ?</span=
></p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black"><br>
</span></p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black">8) While progr=
amming Node-SID on MPLS ILM table, can I assume node-SID would always be p=
rogrammed with SWAP operation except on PHP node?</span></p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black"><br>
</span></p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"color:black; font-family:Calibri,sans-serif; font-size:12pt=
">Thanks,</span><br>
</p>
<p style=3D"background-image:initial; background-position:initial; backgro=
und-size:initial; background-repeat:initial; background-origin:initial; ba=
ckground-clip:initial; margin:0in 0in 0.0001pt; font-size:12pt; font-famil=
y:&quot;Times New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif; color:black">__kals__</span=
></p>
</div>
</div>
</div>
<br clear=3D"both">
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From: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
To: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
CC: "lsr@ietf.org" <lsr@ietf.org>, "spring@ietf.org" <spring@ietf.org>, "draft-ietf-isis-segment-routing-extensions.all@ietf.org" <draft-ietf-isis-segment-routing-extensions.all@ietf.org>, "Peter Psenak (ppsenak)" <ppsenak@cisco.com>
Thread-Topic: [spring] FlexAlgo and Global Adj-SIDs
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/OKZYXg3hjFJvvqR0gaoxXnQ-pcM>
Subject: Re: [spring] FlexAlgo and Global Adj-SIDs
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--_000_AM0PR03MB38287626F8B5567DA01B82879D730AM0PR03MB3828eurp_
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable

Les,
Lots of thanks, makes sense to me.

Thumb typed by Sasha Vainshtein

________________________________
From: Les Ginsberg (ginsberg) <ginsberg@cisco.com>
Sent: Tuesday, March 5, 2019 10:48:43 PM
To: Alexander Vainshtein
Cc: lsr@ietf.org; spring@ietf.org; draft-ietf-isis-segment-routing-extensi=
ons.all@ietf.org; Peter Psenak (ppsenak)
Subject: RE: [spring] FlexAlgo and Global Adj-SIDs

Sasha -

Although you raise a valid issue, I am not feeling any urgency here i.e., =
although the local protected use case is valid I don't see it as operation=
ally critical.
However, that's just my opinion.

If you want to pursue this I think you could raise the issue in either LSR=
 or SPRING (or both).
The gap in the architecture documents is less important than coming to con=
sensus on the importance of the use case.  If there is consensus to addres=
s this then I think deciding what documents need updating will just follow=
 logically.

Make sense to you?

   Les


> -----Original Message-----
> From: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
> Sent: Tuesday, March 05, 2019 8:47 AM
> To: Les Ginsberg (ginsberg) <ginsberg@cisco.com>
> Cc: lsr@ietf.org; spring@ietf.org; draft-ietf-isis-segment-routing-
> extensions.all@ietf.org; Peter Psenak (ppsenak) <ppsenak@cisco.com>
> Subject: RE: [spring] FlexAlgo and Global Adj-SIDs
>
> Les,
> Lots of thanks for a prompt response.
>
> I fully understand that the current SR extension drafts are too far adva=
nced
> for any significant changes.
>
> I also understand that Algo-specific Adj-SIDs require an update to RFC 8=
402
> because today it does not recognize any such entities.
> Therefore the discussion of use cases should probably start in the SPRIN=
G
> WG while effective the result would be "just" new Sub-TLV in IS-IS and O=
SPF
> with the actual work coming to the LSR WG.
>
> Any ideas as to what would be the best way to start this kind of discuss=
ions?
>
> Regards,
> Sasha
>
> Office: +972-39266302
> Cell:      +972-549266302
> Email:   Alexander.Vainshtein@ecitele.com
>
>
> -----Original Message-----
> From: Les Ginsberg (ginsberg) <ginsberg@cisco.com>
> Sent: Tuesday, March 5, 2019 6:37 PM
> To: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>; Peter
> Psenak (ppsenak) <ppsenak@cisco.com>
> Cc: lsr@ietf.org; spring@ietf.org; draft-ietf-isis-segment-routing-
> extensions.all@ietf.org
> Subject: RE: [spring] FlexAlgo and Global Adj-SIDs
>
> Sasha -
>
> draft-ietf-isis-segment-routing-extensions is currently in AD review - a=
nd the
> companion OSPF document has already been approved and is waiting for a
> dependent draft to progress before publication as an RFC.
>
> It is too late to make significant changes.
>
> Further, while I agree with both your description and Peter's response,
> agreeing that this "could" be done is not equivalent to having consensus=
 that
> it "should" be done.
> I think a more complete consideration of the deployment cases and the
> usefulness of such an extension should be discussed by the WG before we
> decide that we actually want to define such an extension.
>
>   Les
>
>
> > -----Original Message-----
> > From: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
> > Sent: Tuesday, March 05, 2019 8:29 AM
> > To: Peter Psenak (ppsenak) <ppsenak@cisco.com>
> > Cc: lsr@ietf.org; spring@ietf.org; draft-ietf-isis-segment-routing-
> > extensions.all@ietf.org
> > Subject: RE: [spring] FlexAlgo and Global Adj-SIDs
> >
> > Peter,
> > Lots of thanks for a prompt and very encouraging response.
> >
> > Do you think that the new Algo specific Adj-SID sub-TLV could be added=

> > to the current IS-IS segment Routing Extensions draft, or should be
> > handled in a small dedicated document?
> >
> > Regards, and lots of thanks in advance, Sasha
> >
> > Office: +972-39266302
> > Cell:      +972-549266302
> > Email:   Alexander.Vainshtein@ecitele.com
> >
> > -----Original Message-----
> > From: Peter Psenak <ppsenak@cisco.com>
> > Sent: Tuesday, March 5, 2019 5:28 PM
> > To: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
> > Cc: lsr@ietf.org; spring@ietf.org; draft-ietf-isis-segment-routing-
> > extensions.all@ietf.org
> > Subject: Re: [spring] FlexAlgo and Global Adj-SIDs
> >
> > Hi Sasha,
> >
> > On 02/03/2019 18:57 , Alexander Vainshtein wrote:
> > > Peter,
> > > Lots of thanks for a prompt and hivhly informative response.
> > >
> > > It seems that per-FlexAlgo Adj-SIDs can be useful even if they are
> > > local
>
> __________________________________________________________
> _________________
>
> 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 the=
n
> delete the original
> and all copies thereof.
> __________________________________________________________
> _________________

__________________________________________________________________________=
_

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ation which is=20
CONFIDENTIAL and which may be proprietary to ECI Telecom. If you have rece=
ived this=20
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--_000_AM0PR03MB38287626F8B5567DA01B82879D730AM0PR03MB3828eurp_
Content-Type: text/html; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable

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">
<meta name=3D"Generator" content=3D"Microsoft Exchange Server">
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<div>
<div dir=3D"auto" style=3D"direction:ltr; margin:0; padding:0; font-family=
:sans-serif; font-size:11pt; color:black">
Les,<br>
</div>
<div dir=3D"auto" style=3D"direction:ltr; margin:0; padding:0; font-family=
:sans-serif; font-size:11pt; color:black">
Lots of thanks, makes sense to me.<br>
<br>
</div>
<div dir=3D"auto" style=3D"direction:ltr; margin:0; padding:0; font-family=
:sans-serif; font-size:11pt; color:black">
<div dir=3D"auto" style=3D"direction:ltr; margin:0; padding:0; font-family=
:sans-serif; font-size:11pt; color:black">
Thumb typed by Sasha Vainshtein</div>
<br>
</div>
<hr tabindex=3D"-1" style=3D"display:inline-block; width:98%">
<div id=3D"x_divRplyFwdMsg" dir=3D"ltr"><font face=3D"Calibri, sans-serif"=
 color=3D"#000000" style=3D"font-size:11pt"><b>From:</b> Les Ginsberg (gin=
sberg) &lt;ginsberg@cisco.com&gt;<br>
<b>Sent:</b> Tuesday, March 5, 2019 10:48:43 PM<br>
<b>To:</b> Alexander Vainshtein<br>
<b>Cc:</b> lsr@ietf.org; spring@ietf.org; draft-ietf-isis-segment-routing-=
extensions.all@ietf.org; Peter Psenak (ppsenak)<br>
<b>Subject:</b> RE: [spring] FlexAlgo and Global Adj-SIDs</font>
<div>&nbsp;</div>
</div>
</div>
<font size=3D"2"><span style=3D"font-size:11pt;">
<div class=3D"PlainText">Sasha -<br>
<br>
Although you raise a valid issue, I am not feeling any urgency here i.e., =
although the local protected use case is valid I don't see it as operation=
ally critical.<br>
However, that's just my opinion.<br>
<br>
If you want to pursue this I think you could raise the issue in either LSR=
 or SPRING (or both).<br>
The gap in the architecture documents is less important than coming to con=
sensus on the importance of the use case.&nbsp; If there is consensus to a=
ddress this then I think deciding what documents need updating will just f=
ollow logically.<br>
<br>
Make sense to you?<br>
<br>
&nbsp;&nbsp; Les<br>
<br>
<br>
&gt; -----Original Message-----<br>
&gt; From: Alexander Vainshtein &lt;Alexander.Vainshtein@ecitele.com&gt;<b=
r>
&gt; Sent: Tuesday, March 05, 2019 8:47 AM<br>
&gt; To: Les Ginsberg (ginsberg) &lt;ginsberg@cisco.com&gt;<br>
&gt; Cc: lsr@ietf.org; spring@ietf.org; draft-ietf-isis-segment-routing-<b=
r>
&gt; extensions.all@ietf.org; Peter Psenak (ppsenak) &lt;ppsenak@cisco.com=
&gt;<br>
&gt; Subject: RE: [spring] FlexAlgo and Global Adj-SIDs<br>
&gt; <br>
&gt; Les,<br>
&gt; Lots of thanks for a prompt response.<br>
&gt; <br>
&gt; I fully understand that the current SR extension drafts are too far a=
dvanced<br>
&gt; for any significant changes.<br>
&gt; <br>
&gt; I also understand that Algo-specific Adj-SIDs require an update to RF=
C 8402<br>
&gt; because today it does not recognize any such entities.<br>
&gt; Therefore the discussion of use cases should probably start in the SP=
RING<br>
&gt; WG while effective the result would be &quot;just&quot; new Sub-TLV i=
n IS-IS and OSPF<br>
&gt; with the actual work coming to the LSR WG.<br>
&gt; <br>
&gt; Any ideas as to what would be the best way to start this kind of disc=
ussions?<br>
&gt; <br>
&gt; Regards,<br>
&gt; Sasha<br>
&gt; <br>
&gt; Office: &#43;972-39266302<br>
&gt; Cell:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#43;972-549266302<br>
&gt; Email:&nbsp;&nbsp; Alexander.Vainshtein@ecitele.com<br>
&gt; <br>
&gt; <br>
&gt; -----Original Message-----<br>
&gt; From: Les Ginsberg (ginsberg) &lt;ginsberg@cisco.com&gt;<br>
&gt; Sent: Tuesday, March 5, 2019 6:37 PM<br>
&gt; To: Alexander Vainshtein &lt;Alexander.Vainshtein@ecitele.com&gt;; Pe=
ter<br>
&gt; Psenak (ppsenak) &lt;ppsenak@cisco.com&gt;<br>
&gt; Cc: lsr@ietf.org; spring@ietf.org; draft-ietf-isis-segment-routing-<b=
r>
&gt; extensions.all@ietf.org<br>
&gt; Subject: RE: [spring] FlexAlgo and Global Adj-SIDs<br>
&gt; <br>
&gt; Sasha -<br>
&gt; <br>
&gt; draft-ietf-isis-segment-routing-extensions is currently in AD review =
- and the<br>
&gt; companion OSPF document has already been approved and is waiting for =
a<br>
&gt; dependent draft to progress before publication as an RFC.<br>
&gt; <br>
&gt; It is too late to make significant changes.<br>
&gt; <br>
&gt; Further, while I agree with both your description and Peter's respons=
e,<br>
&gt; agreeing that this &quot;could&quot; be done is not equivalent to hav=
ing consensus that<br>
&gt; it &quot;should&quot; be done.<br>
&gt; I think a more complete consideration of the deployment cases and the=
<br>
&gt; usefulness of such an extension should be discussed by the WG before =
we<br>
&gt; decide that we actually want to define such an extension.<br>
&gt; <br>
&gt;&nbsp;&nbsp; Les<br>
&gt; <br>
&gt; <br>
&gt; &gt; -----Original Message-----<br>
&gt; &gt; From: Alexander Vainshtein &lt;Alexander.Vainshtein@ecitele.com&=
gt;<br>
&gt; &gt; Sent: Tuesday, March 05, 2019 8:29 AM<br>
&gt; &gt; To: Peter Psenak (ppsenak) &lt;ppsenak@cisco.com&gt;<br>
&gt; &gt; Cc: lsr@ietf.org; spring@ietf.org; draft-ietf-isis-segment-routi=
ng-<br>
&gt; &gt; extensions.all@ietf.org<br>
&gt; &gt; Subject: RE: [spring] FlexAlgo and Global Adj-SIDs<br>
&gt; &gt;<br>
&gt; &gt; Peter,<br>
&gt; &gt; Lots of thanks for a prompt and very encouraging response.<br>
&gt; &gt;<br>
&gt; &gt; Do you think that the new Algo specific Adj-SID sub-TLV could be=
 added<br>
&gt; &gt; to the current IS-IS segment Routing Extensions draft, or should=
 be<br>
&gt; &gt; handled in a small dedicated document?<br>
&gt; &gt;<br>
&gt; &gt; Regards, and lots of thanks in advance, Sasha<br>
&gt; &gt;<br>
&gt; &gt; Office: &#43;972-39266302<br>
&gt; &gt; Cell:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#43;972-549266302<br>
&gt; &gt; Email:&nbsp;&nbsp; Alexander.Vainshtein@ecitele.com<br>
&gt; &gt;<br>
&gt; &gt; -----Original Message-----<br>
&gt; &gt; From: Peter Psenak &lt;ppsenak@cisco.com&gt;<br>
&gt; &gt; Sent: Tuesday, March 5, 2019 5:28 PM<br>
&gt; &gt; To: Alexander Vainshtein &lt;Alexander.Vainshtein@ecitele.com&gt=
;<br>
&gt; &gt; Cc: lsr@ietf.org; spring@ietf.org; draft-ietf-isis-segment-routi=
ng-<br>
&gt; &gt; extensions.all@ietf.org<br>
&gt; &gt; Subject: Re: [spring] FlexAlgo and Global Adj-SIDs<br>
&gt; &gt;<br>
&gt; &gt; Hi Sasha,<br>
&gt; &gt;<br>
&gt; &gt; On 02/03/2019 18:57 , Alexander Vainshtein wrote:<br>
&gt; &gt; &gt; Peter,<br>
&gt; &gt; &gt; Lots of thanks for a prompt and hivhly informative response=
.<br>
&gt; &gt; &gt;<br>
&gt; &gt; &gt; It seems that per-FlexAlgo Adj-SIDs can be useful even if t=
hey are<br>
&gt; &gt; &gt; local<br>
&gt; <br>
&gt; __________________________________________________________<br>
&gt; _________________<br>
&gt; <br>
&gt; This e-mail message is intended for the recipient only and contains<b=
r>
&gt; information which is<br>
&gt; CONFIDENTIAL and which may be proprietary to ECI Telecom. If you have=
<br>
&gt; received this<br>
&gt; transmission in error, please inform us by e-mail, phone or fax, and =
then<br>
&gt; delete the original<br>
&gt; and all copies thereof.<br>
&gt; __________________________________________________________<br>
&gt; _________________<br>
</div>
</span></font>
<br clear=3D"both">
__________________________________________________________________________=
_<BR>
<BR>
This e-mail message is intended for the recipient only and contains inform=
ation which is <BR>
CONFIDENTIAL and which may be proprietary to ECI Telecom. If you have rece=
ived this <BR>
transmission in error, please inform us by e-mail, phone or fax, and then =
delete the original <BR>
and all copies thereof.<BR>
__________________________________________________________________________=
_<BR>
</body>
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--_000_AM0PR03MB38287626F8B5567DA01B82879D730AM0PR03MB3828eurp_--


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Subject: Re: [spring] Flow Label in End.DX4 (draft-filsfils-spring-srv6-network-programming-07
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From: Ron Bonica <rbonica@juniper.net>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/IieKSKb7YpmhxRY4FxZ0AeHi0Cs>
Subject: Re: [spring] Working Group Adoption Call for draft-cheng-spring-mpls-path-segment
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Support

> -----Original Message-----
> From: spring <spring-bounces@ietf.org> On Behalf Of
> bruno.decraene@orange.com
> Sent: Wednesday, February 20, 2019 4:04 AM
> To: SPRING WG <spring@ietf.org>
> Cc: draft-cheng-spring-mpls-path-segment@ietf.org
> Subject: [spring] Working Group Adoption Call for draft-cheng-spring-mpls=
-
> path-segment
>=20
> Hi SPRING WG,
>=20
> This email initiates a two week call for working group adoption for draft=
-
> cheng-spring-mpls-path-segment.
>=20
> Please indicate your support, comments, or objection, for adopting this d=
raft
> as a working group item by March 6th 2019.
> We are particularly interested in hearing from working group members that
> are not co-authors of this draft.
> We are also looking for volunteers who would be ready to perform a techni=
cal
> review of this work at some later stage, such as before or during WG the =
last
> call.
>=20
> Additionally, there are currently 7 authors listed on this document. Plea=
se trim
> this to <=3D 5 front-page authors, utilising a "Contributors" section if =
required
> for the others. An approach to achieving this would be to list ~2 editors=
 as the
> front-page authors.
>=20
> In parallel to this adoption call, I will send an IPR call for this docum=
ent. We will
> need all authors and contributors to confirm their IPR position on this
> document.
>=20
> (1) https://urldefense.proofpoint.com/v2/url?u=3Dhttps-
> 3A__tools.ietf.org_html_draft-2Dcheng-2Dspring-2Dmpls-2Dpath-
> 2Dsegment&d=3DDwICAg&c=3DHAkYuh63rsuhr6Scbfh0UjBXeMK-
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> DaCyloRAnwYG3dvTAxYbVjB4&e=3D
>=20
> Thanks,
> --Bruno & Rob.
>=20
>=20
> ___________________________________________________________
> ___________________________________________________________
> ___
>=20
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>=20
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>=20
> _______________________________________________
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From: "Rakesh Gandhi (rgandhi)" <rgandhi@cisco.com>
To: Greg Mirsky <gregimirsky@gmail.com>
CC: spring <spring@ietf.org>, IETF IPPM WG <ippm@ietf.org>
Thread-Topic: Comments on draft-gandhi-spring-twamp-srpm
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Date: Wed, 6 Mar 2019 18:04:19 +0000
Message-ID: <AF2CA449-2571-49E7-ABA7-881F8777846A@cisco.com>
References: <CA+RyBmW1JJZYQQOctSMJU8J0Fr1+k163ocg7PyJqgTTsSEU7HA@mail.gmail.com> <0A415208-C4F5-4DA7-82C5-47E4C6A8E996@cisco.com> <CA+RyBmU6PcTtdjhSzxkJuR_2S-8zpkLaNTGOc-HHk-cOR1qZeQ@mail.gmail.com>
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Subject: Re: [spring] Comments on draft-gandhi-spring-twamp-srpm
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From: Ron Bonica <rbonica@juniper.net>
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Subject: [spring] SRv6 enhancement Drafts
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Folks,

The following drafts propose improvements to SRv6:

- https://datatracker.ietf.org/doc/draft-bonica-6man-comp-rtg-hdr/
- https://datatracker.ietf.org/doc/draft-bonica-6man-vpn-dest-opt/
- https://datatracker.ietf.org/doc/draft-bonica-6man-oam/
- https://datatracker.ietf.org/doc/draft-bonica-6man-seg-end-opt/

Please review and comment.

                                                              Ron


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From: Shraddha Hegde <shraddha@juniper.net>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
CC: "draft-cheng-spring-mpls-path-segment@ietf.org" <draft-cheng-spring-mpls-path-segment@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/7KLOz_gmefveSpq1QyzcBC5HCL4>
Subject: Re: [spring] Working Group Adoption Call for draft-cheng-spring-mpls-path-segment
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Path segment has multiple useful use cases.
I support the WG adoption of this draft.

Few comments
1. The fact that service labels appear below path-segment should be clearly=
 mentioned.
At the egress, multiple labels may have to be looked-up and popped for UHP =
cases. This may need
special hardware capability. This egress processing needs to be explained i=
n the draft.

2. The ability to have a globally significant path-ID representation is ver=
y useful
for various accounting purposes. I believe, we should continue to have glob=
ally scoped
path-segment.

3. The path-segment should be pushed in a packet only when egress is capabl=
e of=20
processing the path-segment. This aspect needs to be explained in this draf=
t.

Rgds
Shraddha

-----Original Message-----
From: spring <spring-bounces@ietf.org> On Behalf Of bruno.decraene@orange.c=
om
Sent: Wednesday, February 20, 2019 2:34 PM
To: SPRING WG <spring@ietf.org>
Cc: draft-cheng-spring-mpls-path-segment@ietf.org
Subject: [spring] Working Group Adoption Call for draft-cheng-spring-mpls-p=
ath-segment

Hi SPRING WG,

This email initiates a two week call for working group adoption for draft-c=
heng-spring-mpls-path-segment.

Please indicate your support, comments, or objection, for adopting this dra=
ft as a working group item by March 6th 2019.
We are particularly interested in hearing from working group members that a=
re not co-authors of this draft.
We are also looking for volunteers who would be ready to perform a technica=
l review of this work at some later stage, such as before or during WG the =
last call.

Additionally, there are currently 7 authors listed on this document. Please=
 trim this to <=3D 5 front-page authors, utilising a "Contributors" section=
 if required for the others. An approach to achieving this would be to list=
 ~2 editors as the front-page authors.

In parallel to this adoption call, I will send an IPR call for this documen=
t. We will need all authors and contributors to confirm their IPR position =
on this document.

(1) https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__tools.ietf.org_h=
tml_draft-2Dcheng-2Dspring-2Dmpls-2Dpath-2Dsegment&d=3DDwICAg&c=3DHAkYuh63r=
suhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=3DNyjLsr7JA7mvpCJa0YmPdVKcmMXJ31bpbBaN=
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sVmn6BDxD3rSl6dJUudnCulEvofk&e=3D

Thanks,
--Bruno & Rob.


___________________________________________________________________________=
______________________________________________

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From: "Chengli (Cheng Li)" <chengli13@huawei.com>
To: "Ketan Talaulikar (ketant)" <ketant@cisco.com>, "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
CC: "draft-cheng-spring-mpls-path-segment@ietf.org" <draft-cheng-spring-mpls-path-segment@ietf.org>
Thread-Topic: Working Group Adoption Call for draft-cheng-spring-mpls-path-segment
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Subject: Re: [spring] Working Group Adoption Call for draft-cheng-spring-mpls-path-segment
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From: "Ketan Talaulikar (ketant)" <ketant@cisco.com>
To: "Chengli (Cheng Li)" <chengli13@huawei.com>, "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
CC: "draft-cheng-spring-mpls-path-segment@ietf.org" <draft-cheng-spring-mpls-path-segment@ietf.org>
Thread-Topic: Working Group Adoption Call for draft-cheng-spring-mpls-path-segment
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/aIjWoUvaUmL1kuV4nUJ0aVFCFYs>
Subject: Re: [spring] Working Group Adoption Call for draft-cheng-spring-mpls-path-segment
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Thanks Cheng for your clarifications.


-----Original Message-----
From: spring <spring-bounces@ietf.org> On Behalf Of Chengli (Cheng Li)
Sent: 07 March 2019 14:05
To: Ketan Talaulikar (ketant) <ketant@cisco.com>; bruno.decraene@orange.com=
; SPRING WG <spring@ietf.org>
Cc: draft-cheng-spring-mpls-path-segment@ietf.org
Subject: Re: [spring] Working Group Adoption Call for draft-cheng-spring-mp=
ls-path-segment

Hi Ketan,=20

Thank you for your support and comments, please see my reply inline.

Regards,
Cheng


-----Original Message-----
From: spring [mailto:spring-bounces@ietf.org] On Behalf Of Ketan Talaulikar=
 (ketant)
Sent: Wednesday, February 27, 2019 12:20 PM
To: bruno.decraene@orange.com; SPRING WG <spring@ietf.org>
Cc: draft-cheng-spring-mpls-path-segment@ietf.org
Subject: Re: [spring] Working Group Adoption Call for draft-cheng-spring-mp=
ls-path-segment

Hello,

I support the adoption of this draft by the WG. I have some comments which =
I would like to bring to the author's and WG though - some of these were ra=
ised when this draft was presented in Bangkok but I don't see them addresse=
d as yet.

1) Sec 2.
A Path Segment is a single label that is assigned from the Segment
   Routing Local Block (SRLB) or Segment Routing Global Block (SRGB) of
   the egress node of an SR path.

KT> Why can't the Path Segment be allocated from the dynamic MPLS label poo=
l on the egress node? Can this be added as discussed in Bangkok? This mode =
would help achieve a good scalability for SR Policies along with the option=
 of using SRLB. On the other hand, I do not understand the use-case for all=
ocating Path Segments from the SRGB. If there is none, do we want to preclu=
de SRGB usage for Path Segments?

[Cheng] Yes, path segment can be allocated from dynamic MPLS lable pool as =
we answered you at Bangkok. We will add text to specify that. Regarding SRG=
B, We won't suggest to allocate path segment from SRGB due to scalability c=
onsideration, but we don't stop people to do that.


2) Can the authors clarify on the relationship and usage of Path Segment wi=
th Entropy label (https://tools.ietf.org/html/draft-ietf-mpls-spring-entrop=
y-label-12)? There are examples of nested segments. Similarly, the draft co=
uld use some text to discuss the MSD capabilities of the headend when enabl=
ing path segment usage.

[Cheng] Regarding EL, I think it can be pushed before or after path segment=
, it does not matter. But we would suggest to place path segment before EL.
Only need to make sure that path segment to be read by the egress node.
Thus, it should be placed after the "routing segment=1B$B!J=1B(Badj/node/pr=
efix=1B$B!K=1B(B" pointing to the egress node.

Thanks, will add text to describe MSD.


3) This seems SR/MPLS specific to me. Is that correct? If so, why put refer=
ence to SRv6 documents in there as that would create confusion?
[Cheng] Correct, will delete those references.

Thanks,
Ketan

-----Original Message-----
From: spring <spring-bounces@ietf.org> On Behalf Of bruno.decraene@orange.c=
om
Sent: 20 February 2019 14:34
To: SPRING WG <spring@ietf.org>
Cc: draft-cheng-spring-mpls-path-segment@ietf.org
Subject: [spring] Working Group Adoption Call for draft-cheng-spring-mpls-p=
ath-segment

Hi SPRING WG,

This email initiates a two week call for working group adoption for draft-c=
heng-spring-mpls-path-segment.

Please indicate your support, comments, or objection, for adopting this dra=
ft as a working group item by March 6th 2019.
We are particularly interested in hearing from working group members that a=
re not co-authors of this draft.
We are also looking for volunteers who would be ready to perform a technica=
l review of this work at some later stage, such as before or during WG the =
last call.

Additionally, there are currently 7 authors listed on this document. Please=
 trim this to <=3D 5 front-page authors, utilising a "Contributors" section=
 if required for the others. An approach to achieving this would be to list=
 ~2 editors as the front-page authors.

In parallel to this adoption call, I will send an IPR call for this documen=
t. We will need all authors and contributors to confirm their IPR position =
on this document.

(1) https://tools.ietf.org/html/draft-cheng-spring-mpls-path-segment

Thanks,
--Bruno & Rob.


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To: "draft-cheng-spring-mpls-path-segment@ietf.org" <draft-cheng-spring-mpls-path-segment@ietf.org>
CC: SPRING WG <spring@ietf.org>
Thread-Topic: Working Group Adoption Call for draft-cheng-spring-mpls-path-segment
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Hi authors, WG,

draft-cheng-spring-mpls-path-segment has been accepted as a WG document.
Please republish as draft-ietf-spring-mpls-path-segment with no more than 5=
 front-page authors.

As this is now a WG document, please engage discussions to resolve past and=
 future comments and update the document accordingly.

Thanks,
--Bruno & Rob.

-----Original Message-----
From: spring [mailto:spring-bounces@ietf.org] On Behalf Of bruno.decraene@o=
range.com
Sent: Wednesday, February 20, 2019 10:04 AM
To: SPRING WG
Cc: draft-cheng-spring-mpls-path-segment@ietf.org
Subject: [spring] Working Group Adoption Call for draft-cheng-spring-mpls-p=
ath-segment

Hi SPRING WG,

This email initiates a two week call for working group adoption for draft-c=
heng-spring-mpls-path-segment.

Please indicate your support, comments, or objection, for adopting this dra=
ft as a working group item by March 6th 2019.
We are particularly interested in hearing from working group members that a=
re not co-authors of this draft.
We are also looking for volunteers who would be ready to perform a technica=
l review of this work at some later stage, such as before or during WG the =
last call.

Additionally, there are currently 7 authors listed on this document. Please=
 trim this to <=3D 5 front-page authors, utilising a "Contributors" section=
 if required for the others. An approach to achieving this would be to list=
 ~2 editors as the front-page authors.

In parallel to this adoption call, I will send an IPR call for this documen=
t. We will need all authors and contributors to confirm their IPR position =
on this document.

(1) https://tools.ietf.org/html/draft-cheng-spring-mpls-path-segment

Thanks,
--Bruno & Rob.


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From nobody Thu Mar  7 05:24:49 2019
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From: "Weiqiang Cheng" <chengweiqiang@chinamobile.com>
To: <bruno.decraene@orange.com>, <draft-cheng-spring-mpls-path-segment@ietf.org>
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Subject: Re: [spring] Working Group Adoption Call for draft-cheng-spring-mpls-path-segment
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Thanks a lot.
We will generate a new version with no more than 5 front-page authors.

B.R.
Weiqiang Cheng

-----=D3=CA=BC=FE=D4=AD=BC=FE-----
=B7=A2=BC=FE=C8=CB: bruno.decraene@orange.com =
[mailto:bruno.decraene@orange.com]=20
=B7=A2=CB=CD=CA=B1=BC=E4: 2019=C4=EA3=D4=C27=C8=D5 20:26
=CA=D5=BC=FE=C8=CB: draft-cheng-spring-mpls-path-segment@ietf.org
=B3=AD=CB=CD: SPRING WG
=D6=F7=CC=E2: RE: Working Group Adoption Call for
draft-cheng-spring-mpls-path-segment

Hi authors, WG,

draft-cheng-spring-mpls-path-segment has been accepted as a WG document.
Please republish as draft-ietf-spring-mpls-path-segment with no more =
than 5
front-page authors.

As this is now a WG document, please engage discussions to resolve past =
and
future comments and update the document accordingly.

Thanks,
--Bruno & Rob.

-----Original Message-----
From: spring [mailto:spring-bounces@ietf.org] On Behalf Of
bruno.decraene@orange.com
Sent: Wednesday, February 20, 2019 10:04 AM
To: SPRING WG
Cc: draft-cheng-spring-mpls-path-segment@ietf.org
Subject: [spring] Working Group Adoption Call for
draft-cheng-spring-mpls-path-segment

Hi SPRING WG,

This email initiates a two week call for working group adoption for
draft-cheng-spring-mpls-path-segment.

Please indicate your support, comments, or objection, for adopting this
draft as a working group item by March 6th 2019.
We are particularly interested in hearing from working group members =
that
are not co-authors of this draft.
We are also looking for volunteers who would be ready to perform a =
technical
review of this work at some later stage, such as before or during WG the
last call.

Additionally, there are currently 7 authors listed on this document. =
Please
trim this to <=3D 5 front-page authors, utilising a "Contributors" =
section if
required for the others. An approach to achieving this would be to list =
~2
editors as the front-page authors.

In parallel to this adoption call, I will send an IPR call for this
document. We will need all authors and contributors to confirm their IPR
position on this document.

(1) https://tools.ietf.org/html/draft-cheng-spring-mpls-path-segment

Thanks,
--Bruno & Rob.


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From: tech_kals Kals <tech.kals@gmail.com>
Date: Fri, 8 Mar 2019 10:32:54 +0530
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To: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
Cc: "ask-segment-routing@cisco.com" <ask-segment-routing@cisco.com>,  "Stefano Previdi (sprevidi)" <sprevidi@cisco.com>, "cfilsfil@cisco.com" <cfilsfil@cisco.com>,  "Ahmed Bashandy (bashandy)" <bashandy@cisco.com>, "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>,  "Peter Psenak (ppsenak)" <ppsenak@cisco.com>, "spring@ietf.org" <spring@ietf.org>, tech_kals Kals <tech.kals@gmail.com>
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--000000000000ab824105838e26a2
Content-Type: text/plain; charset="UTF-8"

Hi Alexander,

Thank you so much for your response.

Am looking answer for other questions as well. Can someone please reply if
you can.

Thanks in advance.

Regards,
Kaliyaperumal K



On Wed, Mar 6, 2019 at 11:03 AM Alexander Vainshtein <
Alexander.Vainshtein@ecitele.com> wrote:

> Kals,
> Some short answers reflecting my personal understandings
> 1. LSP Ping and Traceroute work just fine with SR-MPLS. Therefore
> on-demand OAM is not a problem.
> 2. There are several options for proactive OAM in SR-MPLS, including usage
> of Path Segments.
> 3. Prefix SIDs are NOT a replacement for BGP/MPLS IP VPNs.
>
> Thumb typed by Sasha Vainshtein
>
> ------------------------------
> *From:* spring <spring-bounces@ietf.org> on behalf of tech_kals Kals <
> tech.kals@gmail.com>
> *Sent:* Wednesday, March 6, 2019 5:56:35 AM
> *To:* ask-segment-routing@cisco.com; Stefano Previdi (sprevidi);
> cfilsfil@cisco.com; Ahmed Bashandy (bashandy); Les Ginsberg (ginsberg);
> Peter Psenak (ppsenak); martin.pilka@pantheon.tech; spring@ietf.org
> *Subject:* [spring] Questions on Segment Routing
>
> Hi Experts,
>
> I have few questions on Segment Routing. Can you please clarify my doubts.
>
> 1) How OAM can be done in segment-routed networks ?
>
>      I think, MPLS OAM is not possible with SR as network infrastructure
> doesn't have any LSP state.
>
>      With SDN controller in place, do we really need traditional OAM ?
>
>      SDN controller can do OAM, but at what cost (like BGP-LS) ?
>
>
>
> 2) How will the traffic handoff happen from aggregate network to core
> network ?
>
>     core is running RSVP-TE, so IP handoff  can be done on edge router ?
>
>     I don't think, SDN controller can control RSVP enabled routers. So, how
> it is to make end-to-end TE i..e from Aggregate router to Core Router ?
>
>
>
> 3) can prefix sid be used to replace VRF in L3VPN scenario? (or any other
> way in SR can avoid vrf ?)
>
>      Assume, on a router there are two interfaces. one is 10.1.1.0 VRF-1,
> another one is VRF2-10.1.1.0.
>
>      Which SID should I use to differentiate them? Can I use, prefix SID
> in this case ?
>
>      Is the below will work ?
>
>      Eth1 - VRF-1: 10.1.1.0  == Prefix SID: 1000
>
>      Eth2 - VRF-2: 10.1.1.0  == Prefix SID: 2000
>
>
>
> 4) How to handle multicast/broadcast using SR ?
>
>
>
> 5) SRv6 stacking ipv6 SRH might hit MTU limit somewhere in the network.
>
>      Is my understanding correct ?
>
>
>
> 6) Does VRRP work with SR ? how fault would be propagated in a necklace
> topology?
>
>
>
> 7) Is there any known issues related to interop with different vendors ?
>
>
> 8) While programming Node-SID on MPLS ILM table, can I assume node-SID
> would always be programmed with SWAP operation except on PHP node?
>
>
> Thanks,
>
> __kals__
>
> ___________________________________________________________________________
>
> 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.
> ___________________________________________________________________________
>

--000000000000ab824105838e26a2
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Hi Alexander,<div><br></div><div>Thank you so much for you=
r response.</div><div><br></div><div>Am looking answer for other questions =
as well. Can someone please reply if you can.</div><div><br></div><div>Than=
ks in advance.</div><div><br></div><div>Regards,</div><div>Kaliyaperumal K<=
/div><div><br></div><div><br></div></div><br><div class=3D"gmail_quote"><di=
v dir=3D"ltr" class=3D"gmail_attr">On Wed, Mar 6, 2019 at 11:03 AM Alexande=
r Vainshtein &lt;<a href=3D"mailto:Alexander.Vainshtein@ecitele.com">Alexan=
der.Vainshtein@ecitele.com</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>
<div dir=3D"auto" style=3D"direction:ltr;margin:0px;padding:0px;font-family=
:sans-serif;font-size:11pt;color:black">
Kals, <br>
</div>
<div dir=3D"auto" style=3D"direction:ltr;margin:0px;padding:0px;font-family=
:sans-serif;font-size:11pt;color:black">
Some short answers reflecting my personal understandings<br>
</div>
<div dir=3D"auto" style=3D"direction:ltr;margin:0px;padding:0px;font-family=
:sans-serif;font-size:11pt;color:black">
1. LSP Ping and Traceroute work just fine with SR-MPLS. Therefore on-demand=
 OAM is not a problem.<br>
</div>
<div dir=3D"auto" style=3D"direction:ltr;margin:0px;padding:0px;font-family=
:sans-serif;font-size:11pt;color:black">
2. There are several options for proactive OAM in SR-MPLS, including usage =
of Path Segments.<br>
</div>
<div dir=3D"auto" style=3D"direction:ltr;margin:0px;padding:0px;font-family=
:sans-serif;font-size:11pt;color:black">
3. Prefix SIDs are NOT a replacement for BGP/MPLS IP VPNs.<br>
<br>
</div>
<div dir=3D"auto" style=3D"direction:ltr;margin:0px;padding:0px;font-family=
:sans-serif;font-size:11pt;color:black">
<div dir=3D"auto" style=3D"direction:ltr;margin:0px;padding:0px;font-family=
:sans-serif;font-size:11pt;color:black">
Thumb typed by Sasha Vainshtein</div>
<br>
</div>
<hr style=3D"display:inline-block;width:98%">
<div id=3D"gmail-m_3632511918143968223divRplyFwdMsg" dir=3D"ltr"><font face=
=3D"Calibri, sans-serif" color=3D"#000000" style=3D"font-size:11pt"><b>From=
:</b> spring &lt;<a href=3D"mailto:spring-bounces@ietf.org" target=3D"_blan=
k">spring-bounces@ietf.org</a>&gt; on behalf of tech_kals Kals &lt;<a href=
=3D"mailto:tech.kals@gmail.com" target=3D"_blank">tech.kals@gmail.com</a>&g=
t;<br>
<b>Sent:</b> Wednesday, March 6, 2019 5:56:35 AM<br>
<b>To:</b> <a href=3D"mailto:ask-segment-routing@cisco.com" target=3D"_blan=
k">ask-segment-routing@cisco.com</a>; Stefano Previdi (sprevidi); <a href=
=3D"mailto:cfilsfil@cisco.com" target=3D"_blank">cfilsfil@cisco.com</a>; Ah=
med Bashandy (bashandy); Les Ginsberg (ginsberg); Peter Psenak (ppsenak); m=
artin.pilka@pantheon.tech; <a href=3D"mailto:spring@ietf.org" target=3D"_bl=
ank">spring@ietf.org</a><br>
<b>Subject:</b> [spring] Questions on Segment Routing</font>
<div>=C2=A0</div>
</div>
<div>
<div dir=3D"ltr">Hi Experts,
<div><br>
</div>
<div>I have few questions on Segment Routing. Can you please clarify my dou=
bts.</div>
<div><br>
</div>
<div>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black">1) How OAM can b=
e=C2=A0done in=C2=A0segment-routed networks ?</span></p>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black">=C2=A0 =C2=A0 =
=C2=A0I think, MPLS OAM is not possible with SR as=C2=A0</span><span style=
=3D"color:rgb(0,0,0);font-family:Calibri,sans-serif">network infrastructure=
 doesn&#39;t have any LSP state.</span></p>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black">=C2=A0 =C2=A0 =
=C2=A0W</span><span style=3D"color:black;font-family:Calibri,sans-serif;fon=
t-size:12pt">ith SDN controller in place,=C2=A0do we really need traditiona=
l OAM=C2=A0?</span></p>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black">=C2=A0<span styl=
e=3D"background-image:initial;background-position:initial;background-size:i=
nitial;background-repeat:initial;background-origin:initial;background-clip:=
initial">=C2=A0 =C2=A0=C2=A0SDN controller can do=C2=A0OAM,
 but at what cost (like BGP-LS) ?</span></span></p>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black">=C2=A0</span></p=
>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black;background-image:=
initial;background-position:initial;background-size:initial;background-repe=
at:initial;background-origin:initial;background-clip:initial">2) How will t=
he traffic handoff happen from
 aggregate network to core network ?</span><span style=3D"font-family:Calib=
ri,sans-serif;color:black"></span></p>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black;background-image:=
initial;background-position:initial;background-size:initial;background-repe=
at:initial;background-origin:initial;background-clip:initial">=C2=A0 =C2=A0=
 core is running RSVP-TE, so=C2=A0IP handoff=C2=A0
 can be done=C2=A0on edge router ?</span><span style=3D"font-family:Calibri=
,sans-serif;color:black"></span></p>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black">=C2=A0 =C2=A0 I =
don&#39;t think, SDN controller can=C2=A0control RSVP enabled=C2=A0routers.=
 So,=C2=A0</span><span style=3D"color:black;font-family:Calibri,sans-serif;=
font-size:12pt">how it is to make end-to-end=C2=A0TE i..e from Aggregate
 router to Core Router ?</span></p>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black">=C2=A0</span></p=
>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black">3)=C2=A0</span><=
span style=3D"font-size:12pt;color:black;font-family:Calibri,sans-serif">ca=
n prefix sid be used to replace VRF=C2=A0in L3VPN scenario?=C2=A0</span><sp=
an style=3D"font-size:12pt;background-image:initial;background-position:ini=
tial;background-size:initial;background-repeat:initial;background-origin:in=
itial;background-clip:initial;color:black;font-family:Calibri,sans-serif">(=
or
 any other way in SR can avoid vrf=C2=A0?)</span></p>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black">=C2=A0 =C2=A0 =
=C2=A0Assume, on a router there are two interfaces. one is 10.1.1.0 VRF-1, =
another one is VRF2-10.1.1.0.=C2=A0</span></p>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black">=C2=A0 =C2=A0 =
=C2=A0Which SID should I use to differentiate them? Can I use, prefix SID i=
n this case ?</span></p>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black">=C2=A0 =C2=A0 =
=C2=A0Is the below will work ?</span></p>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black">=C2=A0 =C2=A0 =
=C2=A0Eth1 - VRF-1: 10.1.1.0=C2=A0 =3D=3D Prefix SID: 1000</span></p>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"color:rgb(0,0,0);font-family:Calibri,sans-serif">=C2=A0 =C2=
=A0 =C2=A0Eth2 - VRF-2: 10.1.1.0=C2=A0 =3D=3D Prefix SID: 2000</span>=C2=A0=
=C2=A0<span style=3D"font-family:Calibri,sans-serif;color:black"><br>
</span></p>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black">=C2=A0</span></p=
>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black">4) How to handle=
 multicast/broadcast using SR=C2=A0?</span></p>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black">=C2=A0</span></p=
>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black">5) SRv6 stacking=
 ipv6 SRH might hit MTU limit somewhere in the network.</span></p>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black">=C2=A0 =C2=A0 =
=C2=A0Is my understanding correct ?</span></p>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black">=C2=A0</span></p=
>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black">6) Does=C2=A0VRR=
P work=C2=A0with SR ?=C2=A0how fault would be propagated=C2=A0in a necklace=
 topology?=C2=A0</span></p>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black">=C2=A0</span></p=
>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black">7) Is there any =
known issues related to=C2=A0interop with=C2=A0different vendors ?</span></=
p>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black"><br>
</span></p>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black">8) While program=
ming Node-SID on MPLS ILM table, can I assume node-SID would always be prog=
rammed with SWAP operation except on PHP node?</span></p>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black"><br>
</span></p>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"color:black;font-family:Calibri,sans-serif;font-size:12pt">T=
hanks,</span><br>
</p>
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif">
<span style=3D"font-family:Calibri,sans-serif;color:black">__kals__</span><=
/p>
</div>
</div>
</div>
<br clear=3D"both">
___________________________________________________________________________=
<br>
<br>
This e-mail message is intended for the recipient only and contains informa=
tion which is <br>
CONFIDENTIAL and which may be proprietary to ECI Telecom. If you have recei=
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transmission in error, please inform us by e-mail, phone or fax, and then d=
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</div>

</blockquote></div>

--000000000000ab824105838e26a2--


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From: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
To: Loa Andersson <loa@pi.nu>, Satoru Matsushima <satoru.matsushima@gmail.com>, "spring@ietf.org" <spring@ietf.org>
CC: "Clarence Filsfils (cfilsfil)" <cfilsfil@cisco.com>, =?utf-8?B?5p2+5baL6IGh?= <satoru.matsushima@g.softbank.co.jp>
Thread-Topic: [spring] draft-filsfils-spring-srv6-network-programming
Thread-Index: AQHU0nAsVpOq4TWhA0CD35PlylejmaX7b7aAgAYWZQA=
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From: "Kentaro Ebisawa" <ebiken.g@gmail.com>
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>, "spring@ietf.org" <spring@ietf.org>
Date: Sun, 10 Mar 2019 06:24:16 +0000
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In-Reply-To: <8FC5A8F7-3CE0-4706-A842-E2A5D812F504@cisco.com>
References: <em8912878f-9de2-434b-95f1-400dcd40ba95@ebiken-note> <8FC5A8F7-3CE0-4706-A842-E2A5D812F504@cisco.com>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/_678xaECaP4Lx9czfjh6Ae45Dhs>
Subject: Re: [spring] Flow Label in End.DX4 (draft-filsfils-spring-srv6-network-programming-07
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--------=_MBE21D066B-2AEF-4FEF-A0B2-A64164824533
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Hi Pablo,

Why does the hash needs to be based on the outer IPv6 header?

I understand there are some cases using outer IPv6 header (especially=20
Flow Label) will be suitable.
But I was not sure why we want to specifically limit the hash fields to=20
outer IPv6 in the draft, since there might be some cases you want  to=20
use inner IPv4 header fields.

For example, one might want to use DX4 for IPv4 over SRv6 tunnel which=20
IPv6 SA/DA would be same for all packets and thus inner IPv4 header=20
might have more entropy.

Also, some hardware (ASIC/FPGA) implementation might want to chose using=20
inner IPv4 to reduce memory consumption by not keeping the already poped=20
outer IPv6 header fields or the hash calculated from it.

--
Kentaro Ebisawa <ebiken.g@gmail.com>

------ Original Message ------
From: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
To: "ebiken.g@gmail.com" <ebiken.g@gmail.com>; "spring@ietf.org"=20
<spring@ietf.org>
Sent: 2019/03/06 18:20:59
Subject: Re: [spring] Flow Label in End.DX4=20
(draft-filsfils-spring-srv6-network-programming-07

>Hi Kentaro,
>
>
>
>The pseudocode is correct. The hash is based on the outer IPv6 header=20
>(SA, DA, and Flow Label) before popping it.
>
>
>
>Thanks,
>
>Pablo.
>
>
>
>From: spring <spring-bounces@ietf.org> on behalf of Kentaro Ebisawa=20
><ebiken.g@gmail.com>
>Reply-To: Kentaro Ebisawa <ebiken.g@gmail.com>
>Date: Thursday, 21 February 2019 at 05:32
>To: "spring@ietf.org" <spring@ietf.org>
>Subject: [spring] Flow Label in End.DX4=20
>(draft-filsfils-spring-srv6-network-programming-07
>
>
>
>Hi
>
>
>
>In 4.9 End.DX4 (draft-filsfils-spring-srv6-network-programming-07), I=20
>noticed it requires Flow Label to be included in the hash in "after"=20
>poping IPv6 header.
>
>
>
> > 3. ELSE IF ENH =3D 4 ;; Ref2
>
> > 4. pop the (outer) IPv6 header and its extension headers
>
> > 5. forward to layer-3 adjacency bound to the SID S ;; Ref3
>
>  ...
>
> > Ref3: Selected based on a hash of the packet=E2=80=99s header (at least =
SA,=20
>DA, Flow Label)
>
>
>
>Since IPv6 packet is already poped,  I think it might not be=20
>appropriate to mandate use of Flow Label in this case but using=20
>"identification field" for DX4. (unlike DX6)
>
>
>
>Is this intentional or just a typo when copying from DX6?
>
>
>
>Thanks,
>
>--
>
>Kentaro Ebisawa <ebiken.g@gmail.com>
>
>
>
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<body><div>Hi Pablo,</div><div><br /></div><div>Why does the hash needs to=
 be based on the outer IPv6 header?</div><div><div><div><br /></div><div>I u=
nderstand there are some cases using outer IPv6 header (especially Flow Lab=
el) will be suitable.</div><div></div></div></div><div>But I was not sure w=
hy we want to specifically limit the hash fields to outer IPv6 in the draft=
,=C2=A0since=C2=A0there might be some cases you want =C2=A0to use inner IPv=
4 header fields.</div><div><br /></div><div>For example, one might want to=
 use DX4 for IPv4 over SRv6 tunnel which IPv6 SA/DA would be same for all pa=
ckets and thus inner IPv4 header might have more entropy.</div><div><br /><=
/div><div>Also, some hardware (ASIC/FPGA) implementation might want to chos=
e using inner IPv4 to reduce memory consumption by not keeping the already=
 poped outer IPv6 header fields or the hash calculated from it.</div>
<div><br /></div><div id=3D"signature_old"><div id=3D"xbbc0072bd4834e7"><di=
v>--=C2=A0<div>Kentaro Ebisawa &lt;<a href=3D"mailto:ebiken.g@gmail.com">eb=
iken.g@gmail.com</a>&gt;</div></div></div></div><div><br /></div>
<div>------ Original Message ------</div>
<div>From: "Pablo Camarillo (pcamaril)" &lt;<a href=3D"mailto:pcamaril@cisc=
o.com">pcamaril@cisco.com</a>&gt;</div>
<div>To: "ebiken.g@gmail.com" &lt;<a href=3D"mailto:ebiken.g@gmail.com">ebi=
ken.g@gmail.com</a>&gt;; "spring@ietf.org" &lt;<a href=3D"mailto:spring@iet=
f.org">spring@ietf.org</a>&gt;</div>
<div>Sent: 2019/03/06 18:20:59</div>
<div>Subject: Re: [spring] Flow Label in End.DX4 (draft-filsfils-spring-srv=
6-network-programming-07</div><div><br /></div>
<div id=3D"xcb25a984d4b4484"><blockquote cite=3D"8FC5A8F7-3CE0-4706-A842-E2=
A5D812F504@cisco.com" type=3D"cite" class=3D"cite2">

<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Hi Kentaro,<o:p xmlns:o=3D"#unk=
nown"></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p xmlns:o=3D"#unknown">=C2=
=A0</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:black">The pseud=
ocode is correct. The hash is based on the outer IPv6 header (SA, DA, and F=
low Label) before popping it.</span><span lang=3D"EN-US"><o:p xmlns:o=3D"#u=
nknown"></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p xmlns:o=3D"#unknown">=C2=
=A0</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Thanks,<o:p xmlns:o=3D"#unknown=
"></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Pablo. <o:p xmlns:o=3D"#unknown=
"></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p xmlns:o=3D"#unknown">=C2=
=A0</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:36.0pt"><b><span lang=3D"EN-US" =
style=3D"font-size:12.0pt;color: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 Kentaro Ebisawa &lt;<a href=3D"mailto:ebiken.g@gmail.co=
m">ebiken.g@gmail.com</a>&gt;<br />
<b>Reply-To: </b>Kentaro Ebisawa &lt;<a href=3D"mailto:ebiken.g@gmail.com">=
ebiken.g@gmail.com</a>&gt;<br />
<b>Date: </b>Thursday, 21 February 2019 at 05:32<br />
<b>To: </b>"<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>" &lt;<a=
 href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&gt;<br />
<b>Subject: </b>[spring] Flow Label in End.DX4 (draft-filsfils-spring-srv6-=
network-programming-07<o:p xmlns:o=3D"#unknown"></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US"><o=
:p xmlns:o=3D"#unknown">=C2=A0</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US">Hi=
<o:p xmlns:o=3D"#unknown"></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US"><o=
:p xmlns:o=3D"#unknown">=C2=A0</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US">In =
4.9 End.DX4 (draft-filsfils-spring-srv6-network-programming-07), I noticed =
it requires Flow Label to be included in the hash in "after" poping IPv6 h=
eader.<o:p xmlns:o=3D"#unknown"></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US"><o=
:p xmlns:o=3D"#unknown">=C2=A0</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US">&g=
t; 3. ELSE IF ENH =3D 4 ;; Ref2<o:p xmlns:o=3D"#unknown"></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US">&g=
t; 4. pop the (outer) IPv6 header and its extension headers<o:p xmlns:o=3D"=
#unknown"></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US">&g=
t; 5. forward to layer-3 adjacency bound to the SID S ;; Ref3<o:p xmlns:o=
=3D"#unknown"></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US">=
=C2=A0...<o:p xmlns:o=3D"#unknown"></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US">&g=
t; Ref3: Selected based on a hash of the packet=E2=80=99s header (at least=
 SA,=C2=A0DA, Flow Label)<o:p xmlns:o=3D"#unknown"></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US"><o=
:p xmlns:o=3D"#unknown">=C2=A0</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US">Si=
nce IPv6 packet is already poped, =C2=A0I think it might not be appropriate =
to mandate use of Flow Label in this case but using "identification field" =
for DX4. (unlike DX6)<o:p xmlns:o=3D"#unknown"></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US"><o=
:p xmlns:o=3D"#unknown">=C2=A0</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US">Is =
this intentional or just a typo when copying from DX6?<o:p xmlns:o=3D"#unk=
nown"></o:p></span></p>
</div>
<div id=3D"signature_old">
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US"><o=
:p xmlns:o=3D"#unknown">=C2=A0</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US">Th=
anks,<o:p xmlns:o=3D"#unknown"></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US">--=
=C2=A0<o:p xmlns:o=3D"#unknown"></o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US">Ke=
ntaro Ebisawa &lt;<a href=3D"mailto:ebiken.g@gmail.com">ebiken.g@gmail.com<=
/a>&gt;<o:p xmlns:o=3D"#unknown"></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US"><o=
:p xmlns:o=3D"#unknown">=C2=A0</o:p></span></p>
</div>
</div>
</blockquote></div>


</body></html>
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From: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
To: "rtg-ads@ietf.org" <rtg-ads@ietf.org>
CC: "rtg-dir@ietf.org" <rtg-dir@ietf.org>, "spring@ietf.org" <spring@ietf.org>, "mpls@ietf.org" <mpls@ietf.org>, "draft-ietf-spring-segment-routing-mpls.authors@ietf.org" <draft-ietf-spring-segment-routing-mpls.authors@ietf.org>, Min Ye <amy.yemin@huawei.com>
Thread-Topic: RTG-DIR Last Call review of draft-ietf-spring-segment-routing-mpls-18
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/9faXthcAfXnXvW94cvHlnjBy0sE>
Subject: [spring] RTG-DIR Last Call review of draft-ietf-spring-segment-routing-mpls-18
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From nobody Mon Mar 11 01:36:12 2019
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Subject: [spring] I-D Action: draft-ietf-spring-mpls-path-segment-00.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           : Path Segment in MPLS Based Segment Routing Network
        Authors         : Weiqiang Cheng
                          Han Li
                          Mach(Guoyi) Chen
                          Rakesh Gandhi
                          Royi Zigler
	Filename        : draft-ietf-spring-mpls-path-segment-00.txt
	Pages           : 11
	Date            : 2019-03-10

Abstract:
   A Segment Routing (SR) path is identified by an SR segment list, one
   or partial segments of the list cannot uniquely identify the SR path.
   Path identification is a pre-requisite for various use-cases such as
   performance measurement (PM) of an SR path.

   This document defines a new type of segment that is referred to as
   Path Segment, which is used to identify an SR path.  When used, it is
   inserted at the ingress node of the SR path and immediately follows
   the last segment of the SR path.  The Path Segment will not be popped
   off until it reaches the egress node of the SR path.

   Path Segment can be used by the egress node to implement path
   identification hence to support various use-cases including SR path
   PM, end-to-end 1+1 SR path protection and bidirectional SR paths
   correlation.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-spring-mpls-path-segment-00
https://datatracker.ietf.org/doc/html/draft-ietf-spring-mpls-path-segment-00


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/


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Subject: [spring] draft-ietf-spring-segment-routing-policy
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Hi Bruno, Rob:

We believe that the SR policy draft (draft-ietf-spring-segment-routing-poli=
cy-02.txt) has been discussed in the mailing list well enough, and has been=
 stable for quite some time.

To the best of our knowledge, all comments have been addressed.

Thus,  we solicit WG LC on this draft.

Thanks,
Siva (on behalf of authors and contributors)

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<p class=3D"MsoNormal">Hi Bruno, Rob:<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal">We believe that the SR policy draft (<span style=3D"=
color:black">draft-ietf-spring-segment-routing-policy-02.txt) has been disc=
ussed in the mailing list well enough, and has been stable for quite some t=
ime.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:black"><o:p>&nbsp;</o:p></span>=
</p>
<p class=3D"MsoNormal"><span style=3D"color:black">To the best of our knowl=
edge, all comments have been addressed.</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"color:black">&nbsp;</span><o:p></o:p>=
</p>
<p class=3D"MsoNormal"><span style=3D"color:black">Thus,&nbsp; we solicit W=
G LC on this draft.</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"color:black">&nbsp;</span><o:p></o:p>=
</p>
<p class=3D"MsoNormal"><span style=3D"color:black">Thanks,</span><o:p></o:p=
></p>
<p class=3D"MsoNormal"><span style=3D"color:black">Siva (on behalf of autho=
rs and contributors)</span><o:p></o:p></p>
</div>
</body>
</html>

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From: Xufeng Liu <xufeng.liu.ietf@gmail.com>
Date: Mon, 11 Mar 2019 21:48:59 -0400
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To: TEAS WG <teas@ietf.org>, spring@ietf.org
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Subject: Re: [spring] [Teas] I-D Action: draft-ietf-teas-yang-sr-te-topo-04.txt
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TEAS and SPRING WGs:

An updated version of draft-ietf-teas-yang-sr-te-topo has been posted. The
changes are:

- Synchronize with the updated draft-ietf-spring-sr-yang-12, which provides
several shared groupings, including srgb and srlb.

- Added a leaf to indicate the instance of the information source, in
addition to the existing information source protocol type, to cater to the
use-cases where the information is learned via different instances of the
same source protocol (different instances of the same IGP).

Thanks,
- Xufeng


On Mon, Mar 11, 2019 at 2:25 PM <internet-drafts@ietf.org> wrote:

>
> A New Internet-Draft is available from the on-line Internet-Drafts
> directories.
> This draft is a work item of the Traffic Engineering Architecture and
> Signaling WG of the IETF.
>
>         Title           : YANG Data Model for SR and SR TE Topologies
>         Authors         : Xufeng Liu
>                           Igor Bryskin
>                           Vishnu Pavan Beeram
>                           Tarek Saad
>                           Himanshu Shah
>                           Stephane Litkowski
>         Filename        : draft-ietf-teas-yang-sr-te-topo-04.txt
>         Pages           : 31
>         Date            : 2019-03-11
>
> Abstract:
>    This document defines a YANG data model for Segment Routing (SR)
>    topology and Segment Routing (SR) traffic engineering (TE) topology.
>
>
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-teas-yang-sr-te-topo/
>
> There are also htmlized versions available at:
> https://tools.ietf.org/html/draft-ietf-teas-yang-sr-te-topo-04
> https://datatracker.ietf.org/doc/html/draft-ietf-teas-yang-sr-te-topo-04
>
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-teas-yang-sr-te-topo-04
>
>
> 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/
>
> _______________________________________________
> Teas mailing list
> Teas@ietf.org
> https://www.ietf.org/mailman/listinfo/teas
>

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<div dir=3D"ltr"><div dir=3D"ltr"><div>TEAS and SPRING WGs:</div><div><br><=
/div><div>An updated version of draft-ietf-teas-yang-sr-te-topo has been po=
sted. The changes are:<br><br>- Synchronize with the updated draft-ietf-spr=
ing-sr-yang-12, which provides several shared groupings, including srgb and=
 srlb.</div><div><br>- Added a leaf to indicate the instance of the informa=
tion source, in addition to the existing information source protocol type, =
to cater to the use-cases where the information is learned via different in=
stances of the same source protocol (different instances of the same IGP). =
<br></div><div><br></div><div>Thanks,</div><div>- Xufeng<br></div><div><br>=
</div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">=
On Mon, Mar 11, 2019 at 2:25 PM &lt;<a href=3D"mailto:internet-drafts@ietf.=
org">internet-drafts@ietf.org</a>&gt; wrote:<br></div><blockquote class=3D"=
gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(20=
4,204,204);padding-left:1ex"><br>
A New Internet-Draft is available from the on-line Internet-Drafts director=
ies.<br>
This draft is a work item of the Traffic Engineering Architecture and Signa=
ling WG of the IETF.<br>
<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Title=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0:=
 YANG Data Model for SR and SR TE Topologies<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Authors=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0: Xufe=
ng Liu<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 Igor Bryskin<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 Vishnu Pavan Beeram<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 Tarek Saad<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 Himanshu Shah<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 Stephane Litkowski<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Filename=C2=A0 =C2=A0 =C2=A0 =C2=A0 : draft-iet=
f-teas-yang-sr-te-topo-04.txt<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Pages=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0:=
 31<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Date=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 :=
 2019-03-11<br>
<br>
Abstract:<br>
=C2=A0 =C2=A0This document defines a YANG data model for Segment Routing (S=
R)<br>
=C2=A0 =C2=A0topology and Segment Routing (SR) traffic engineering (TE) top=
ology.<br>
<br>
<br>
The IETF datatracker status page for this draft is:<br>
<a href=3D"https://datatracker.ietf.org/doc/draft-ietf-teas-yang-sr-te-topo=
/" rel=3D"noreferrer" target=3D"_blank">https://datatracker.ietf.org/doc/dr=
aft-ietf-teas-yang-sr-te-topo/</a><br>
<br>
There are also htmlized versions available at:<br>
<a href=3D"https://tools.ietf.org/html/draft-ietf-teas-yang-sr-te-topo-04" =
rel=3D"noreferrer" target=3D"_blank">https://tools.ietf.org/html/draft-ietf=
-teas-yang-sr-te-topo-04</a><br>
<a href=3D"https://datatracker.ietf.org/doc/html/draft-ietf-teas-yang-sr-te=
-topo-04" rel=3D"noreferrer" target=3D"_blank">https://datatracker.ietf.org=
/doc/html/draft-ietf-teas-yang-sr-te-topo-04</a><br>
<br>
A diff from the previous version is available at:<br>
<a href=3D"https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-teas-yang-sr-te-t=
opo-04" rel=3D"noreferrer" target=3D"_blank">https://www.ietf.org/rfcdiff?u=
rl2=3Ddraft-ietf-teas-yang-sr-te-topo-04</a><br>
<br>
<br>
Please note that it may take a couple of minutes from the time of submissio=
n<br>
until the htmlized version and diff are available at <a href=3D"http://tool=
s.ietf.org" rel=3D"noreferrer" target=3D"_blank">tools.ietf.org</a>.<br>
<br>
Internet-Drafts are also available by anonymous FTP at:<br>
<a href=3D"ftp://ftp.ietf.org/internet-drafts/" rel=3D"noreferrer" target=
=3D"_blank">ftp://ftp.ietf.org/internet-drafts/</a><br>
<br>
_______________________________________________<br>
Teas mailing list<br>
<a href=3D"mailto:Teas@ietf.org" target=3D"_blank">Teas@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/teas" rel=3D"noreferrer" t=
arget=3D"_blank">https://www.ietf.org/mailman/listinfo/teas</a><br>
</blockquote></div></div></div>

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Subject: [spring] Which SID is used to represent links when both of them have same IP address.
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Hi experts,


Would like to know which SID can be used for the interfaces which are
having same IP address and have different VRFs.


Assume there are two interfaces on the same router.

Both are having same IP address and they are differentiated using VRF.

So, the config looks as shown below.


eth1 ----> VRF1: 20.1.1.1/24

eth2 ----> VRF2: 20.1.1.1/24


Which SID can be used to represent these links ? Can we use AdjSID ?


Thanks,

Kaliyaperumal K

--000000000000c6c2c80583df10c0
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Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><p style=3D"color:rgb(80,0,80);background-image:initial;ba=
ckground-position:initial;background-size:initial;background-repeat:initial=
;background-origin:initial;background-clip:initial;margin:0in 0in 0.0001pt;=
font-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><span style=
=3D"font-size:12pt;color:black;font-family:Calibri,sans-serif">Hi experts,<=
/span></p><p style=3D"color:rgb(80,0,80);background-image:initial;backgroun=
d-position:initial;background-size:initial;background-repeat:initial;backgr=
ound-origin:initial;background-clip:initial;margin:0in 0in 0.0001pt;font-si=
ze:12pt;font-family:&quot;Times New Roman&quot;,serif"><br></p><p style=3D"=
color:rgb(80,0,80);background-image:initial;background-position:initial;bac=
kground-size:initial;background-repeat:initial;background-origin:initial;ba=
ckground-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&q=
uot;Times New Roman&quot;,serif">Would like to know which SID can be used f=
or the interfaces which are having same IP address and have different VRFs.=
</p><p style=3D"color:rgb(80,0,80);background-image:initial;background-posi=
tion:initial;background-size:initial;background-repeat:initial;background-o=
rigin:initial;background-clip:initial;margin:0in 0in 0.0001pt;font-size:12p=
t;font-family:&quot;Times New Roman&quot;,serif"><br></p><p style=3D"color:=
rgb(80,0,80);background-image:initial;background-position:initial;backgroun=
d-size:initial;background-repeat:initial;background-origin:initial;backgrou=
nd-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Ti=
mes New Roman&quot;,serif"><span style=3D"font-size:12pt;color:black;font-f=
amily:Calibri,sans-serif">Assume there are two interfaces on the same route=
r.=C2=A0</span></p><p style=3D"color:rgb(80,0,80);background-image:initial;=
background-position:initial;background-size:initial;background-repeat:initi=
al;background-origin:initial;background-clip:initial;margin:0in 0in 0.0001p=
t;font-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><span style=
=3D"font-size:12pt;color:black;font-family:Calibri,sans-serif">Both are hav=
ing same IP address and they are differentiated using VRF.</span></p><p sty=
le=3D"color:rgb(80,0,80);background-image:initial;background-position:initi=
al;background-size:initial;background-repeat:initial;background-origin:init=
ial;background-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-fam=
ily:&quot;Times New Roman&quot;,serif"><span style=3D"font-size:12pt;color:=
black;font-family:Calibri,sans-serif">So, the config looks as shown below.<=
/span></p><p style=3D"color:rgb(80,0,80);background-image:initial;backgroun=
d-position:initial;background-size:initial;background-repeat:initial;backgr=
ound-origin:initial;background-clip:initial;margin:0in 0in 0.0001pt;font-si=
ze:12pt;font-family:&quot;Times New Roman&quot;,serif"><span style=3D"font-=
size:12pt;color:black;font-family:Calibri,sans-serif"><br></span></p><p sty=
le=3D"color:rgb(80,0,80);background-image:initial;background-position:initi=
al;background-size:initial;background-repeat:initial;background-origin:init=
ial;background-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-fam=
ily:&quot;Times New Roman&quot;,serif"><span style=3D"font-size:12pt;color:=
black;font-family:Calibri,sans-serif">eth1 ----&gt; VRF1: <a href=3D"http:/=
/20.1.1.1/24">20.1.1.1/24</a></span></p><p style=3D"color:rgb(80,0,80);back=
ground-image:initial;background-position:initial;background-size:initial;ba=
ckground-repeat:initial;background-origin:initial;background-clip:initial;m=
argin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Roman&quo=
t;,serif"><span style=3D"color:rgb(0,0,0);font-family:Calibri,sans-serif">e=
th2 ----&gt; VRF2: <a href=3D"http://20.1.1.1/24">20.1.1.1/24</a></span>=C2=
=A0=C2=A0<span style=3D"font-size:12pt;color:black;font-family:Calibri,sans=
-serif"><br></span></p><p style=3D"color:rgb(80,0,80);background-image:init=
ial;background-position:initial;background-size:initial;background-repeat:i=
nitial;background-origin:initial;background-clip:initial;margin:0in 0in 0.0=
001pt;font-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><span s=
tyle=3D"font-size:12pt;color:black;font-family:Calibri,sans-serif"><br></sp=
an></p><p style=3D"background-image:initial;background-position:initial;bac=
kground-size:initial;background-repeat:initial;background-origin:initial;ba=
ckground-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt"><font color=
=3D"#000000" face=3D"Calibri, sans-serif">Which SID can be used to represen=
t these links ? Can we use AdjSID ?</font></p><p style=3D"background-image:=
initial;background-position:initial;background-size:initial;background-repe=
at:initial;background-origin:initial;background-clip:initial;margin:0in 0in=
 0.0001pt;font-size:12pt"><font color=3D"#000000" face=3D"Calibri, sans-ser=
if"><br></font></p><p style=3D"background-image:initial;background-position=
:initial;background-size:initial;background-repeat:initial;background-origi=
n:initial;background-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt"><=
font color=3D"#000000" face=3D"Calibri, sans-serif">Thanks,</font></p><p st=
yle=3D"background-image:initial;background-position:initial;background-size=
:initial;background-repeat:initial;background-origin:initial;background-cli=
p:initial;margin:0in 0in 0.0001pt;font-size:12pt"><font color=3D"#000000" f=
ace=3D"Calibri, sans-serif">Kaliyaperumal K</font></p></div>

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Subject: [spring] Which SID is used to represent links when both of them have same IP address.
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Hi experts,


Would like to know which SID can be used for the interfaces which are
having same IP address and have different VRFs.


Assume there are two interfaces on the same router.

Both are having same IP address and they are differentiated using VRF.

So, the config looks as shown below.


eth1 ----> VRF1: 20.1.1.1/24

eth2 ----> VRF2: 20.1.1.1/24


Which SID can be used to represent these links ? Can we use AdjSID ?


Thanks,

Kaliyaperumal K

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<div dir=3D"ltr"><p style=3D"color:rgb(80,0,80);background-image:initial;ba=
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;background-origin:initial;background-clip:initial;margin:0in 0in 0.0001pt;=
font-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><span style=
=3D"font-size:12pt;color:black;font-family:Calibri,sans-serif">Hi experts,<=
/span></p><p style=3D"color:rgb(80,0,80);background-image:initial;backgroun=
d-position:initial;background-size:initial;background-repeat:initial;backgr=
ound-origin:initial;background-clip:initial;margin:0in 0in 0.0001pt;font-si=
ze:12pt;font-family:&quot;Times New Roman&quot;,serif"><br></p><p style=3D"=
color:rgb(80,0,80);background-image:initial;background-position:initial;bac=
kground-size:initial;background-repeat:initial;background-origin:initial;ba=
ckground-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&q=
uot;Times New Roman&quot;,serif">Would like to know which SID can be used f=
or the interfaces which are having same IP address and have different VRFs.=
</p><p style=3D"color:rgb(80,0,80);background-image:initial;background-posi=
tion:initial;background-size:initial;background-repeat:initial;background-o=
rigin:initial;background-clip:initial;margin:0in 0in 0.0001pt;font-size:12p=
t;font-family:&quot;Times New Roman&quot;,serif"><br></p><p style=3D"color:=
rgb(80,0,80);background-image:initial;background-position:initial;backgroun=
d-size:initial;background-repeat:initial;background-origin:initial;backgrou=
nd-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Ti=
mes New Roman&quot;,serif"><span style=3D"font-size:12pt;color:black;font-f=
amily:Calibri,sans-serif">Assume there are two interfaces on the same route=
r.=C2=A0</span></p><p style=3D"color:rgb(80,0,80);background-image:initial;=
background-position:initial;background-size:initial;background-repeat:initi=
al;background-origin:initial;background-clip:initial;margin:0in 0in 0.0001p=
t;font-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><span style=
=3D"font-size:12pt;color:black;font-family:Calibri,sans-serif">Both are hav=
ing same IP address and they are differentiated using VRF.</span></p><p sty=
le=3D"color:rgb(80,0,80);background-image:initial;background-position:initi=
al;background-size:initial;background-repeat:initial;background-origin:init=
ial;background-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-fam=
ily:&quot;Times New Roman&quot;,serif"><span style=3D"font-size:12pt;color:=
black;font-family:Calibri,sans-serif">So, the config looks as shown below.<=
/span></p><p style=3D"color:rgb(80,0,80);background-image:initial;backgroun=
d-position:initial;background-size:initial;background-repeat:initial;backgr=
ound-origin:initial;background-clip:initial;margin:0in 0in 0.0001pt;font-si=
ze:12pt;font-family:&quot;Times New Roman&quot;,serif"><span style=3D"font-=
size:12pt;color:black;font-family:Calibri,sans-serif"><br></span></p><p sty=
le=3D"color:rgb(80,0,80);background-image:initial;background-position:initi=
al;background-size:initial;background-repeat:initial;background-origin:init=
ial;background-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-fam=
ily:&quot;Times New Roman&quot;,serif"><span style=3D"font-size:12pt;color:=
black;font-family:Calibri,sans-serif">eth1 ----&gt; VRF1: <a href=3D"http:/=
/20.1.1.1/24">20.1.1.1/24</a></span></p><p style=3D"color:rgb(80,0,80);back=
ground-image:initial;background-position:initial;background-size:initial;ba=
ckground-repeat:initial;background-origin:initial;background-clip:initial;m=
argin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Roman&quo=
t;,serif"><span style=3D"color:rgb(0,0,0);font-family:Calibri,sans-serif">e=
th2 ----&gt; VRF2: <a href=3D"http://20.1.1.1/24">20.1.1.1/24</a></span>=C2=
=A0=C2=A0<span style=3D"font-size:12pt;color:black;font-family:Calibri,sans=
-serif"><br></span></p><p style=3D"color:rgb(80,0,80);background-image:init=
ial;background-position:initial;background-size:initial;background-repeat:i=
nitial;background-origin:initial;background-clip:initial;margin:0in 0in 0.0=
001pt;font-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><span s=
tyle=3D"font-size:12pt;color:black;font-family:Calibri,sans-serif"><br></sp=
an></p><p style=3D"background-image:initial;background-position:initial;bac=
kground-size:initial;background-repeat:initial;background-origin:initial;ba=
ckground-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt"><font color=
=3D"#000000" face=3D"Calibri, sans-serif">Which SID can be used to represen=
t these links ? Can we use AdjSID ?</font></p><p style=3D"background-image:=
initial;background-position:initial;background-size:initial;background-repe=
at:initial;background-origin:initial;background-clip:initial;margin:0in 0in=
 0.0001pt;font-size:12pt"><font color=3D"#000000" face=3D"Calibri, sans-ser=
if"><br></font></p><p style=3D"background-image:initial;background-position=
:initial;background-size:initial;background-repeat:initial;background-origi=
n:initial;background-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt"><=
font color=3D"#000000" face=3D"Calibri, sans-serif">Thanks,</font></p><p st=
yle=3D"background-image:initial;background-position:initial;background-size=
:initial;background-repeat:initial;background-origin:initial;background-cli=
p:initial;margin:0in 0in 0.0001pt;font-size:12pt"><font color=3D"#000000" f=
ace=3D"Calibri, sans-serif">Kaliyaperumal K</font></p></div>

--000000000000c6c2c80583df10c0--


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From: Xiejingrong <xiejingrong@huawei.com>
To: "draft-filsfils-spring-srv6-network-programming.authors@ietf.org" <draft-filsfils-spring-srv6-network-programming.authors@ietf.org>
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Date: Tue, 12 Mar 2019 14:28:00 +0000
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--_000_16253F7987E4F346823E305D08F9115AAB83CDDCnkgeml514mbxchi_
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Dear authors of <srv6-network-programming>:

Thanks for introducing this great concept about how to develop the 128-bit =
IPv6 address.

One comment/question:
Next header value 59 is used when an Ethernet-packet is as the IPv6 payload=
 in SRv6-L2VPN scenario.
It is confusing, because 59 is generally used to indicate that there is *no=
* payload after the IPv6 header and the extension headers. RFC4380 has such=
 an example.
Though RFC8200 allow a packet with Next Header 59 with some payload, but it=
 is not the normal case.
For example, a firewall, or acl rules on a legacy router may drop a packet =
with next header 59.
The IP/IPv6 should use Next Header to indicate the payload format *explicit=
ly* as its original paradigm.
This document also has a good example to use this correctly:
Next Header value 4/41 for IPv4/IPv6 payload in SRv6-L3VPN like End.DT4 or =
End.DT6.

Should this value 59 be changed to TBD and be allocated from IANA officiall=
y?
Does the words "we conveniently reuse the next-header value 59" in the docu=
ment imply this work ?

Thanks
Jingrong

--_000_16253F7987E4F346823E305D08F9115AAB83CDDCnkgeml514mbxchi_
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<p class=3D"MsoNormal"><span lang=3D"EN-US">Dear authors of &lt;srv6-networ=
k-programming&gt;:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks for introducing this gre=
at concept about how to develop the 128-bit IPv6 address.<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">One comment/question:<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Next header value 59 is used wh=
en an Ethernet-packet is as the IPv6 payload in SRv6-L2VPN scenario.<o:p></=
o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">It is confusing, because 59 is =
generally used to indicate that there is *no* payload after the IPv6 header=
 and the extension headers. RFC4380 has such an example.<o:p></o:p></span><=
/p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Though RFC8200 allow a packet w=
ith Next Header 59 with some payload, but it is not the normal case.<o:p></=
o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">For example, a firewall, or acl=
 rules on a legacy router may drop a packet with next header 59.<o:p></o:p>=
</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">The IP/IPv6 should use Next Hea=
der to indicate the payload format *explicitly* as its original paradigm.<o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">This document also has a good e=
xample to use this correctly:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Next Header value 4/41 for IPv4=
/IPv6 payload in SRv6-L3VPN like End.DT4 or End.DT6.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Should this value 59 be changed=
 to TBD and be allocated from IANA officially?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Does the words &quot;we conveni=
ently reuse the next-header value 59&quot; in the document imply this work =
?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Jingrong<o:p></o:p></span></p>
</div>
</body>
</html>

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From: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
To: tech_kals Kals <tech.kals@gmail.com>, "Clarence Filsfils (cfilsfil)" <cfilsfil@cisco.com>, "martin.pilka@pantheon.tech" <martin.pilka@pantheon.tech>, "spring@ietfa.amsl.com" <spring@ietfa.amsl.com>, "ask-segment-routing(mailer list)" <ask-segment-routing@cisco.com>, "Stefano Previdi (sprevidi)" <sprevidi@cisco.com>, "Ahmed Bashandy (bashandy)" <bashandy@cisco.com>, "Peter Psenak (ppsenak)" <ppsenak@cisco.com>, "spring@ietf.org" <spring@ietf.org>
Thread-Topic: Which SID is used to represent links when both of them have same IP address.
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Date: Tue, 12 Mar 2019 14:42:10 +0000
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Subject: Re: [spring] Which SID is used to represent links when both of them have same IP address.
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From: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
To: tech_kals Kals <tech.kals@gmail.com>, "Clarence Filsfils (cfilsfil)" <cfilsfil@cisco.com>, "martin.pilka@pantheon.tech" <martin.pilka@pantheon.tech>, "spring@ietfa.amsl.com" <spring@ietfa.amsl.com>, "ask-segment-routing(mailer list)" <ask-segment-routing@cisco.com>, "Stefano Previdi (sprevidi)" <sprevidi@cisco.com>, "Ahmed Bashandy (bashandy)" <bashandy@cisco.com>, "Peter Psenak (ppsenak)" <ppsenak@cisco.com>, "spring@ietf.org" <spring@ietf.org>
Thread-Topic: Which SID is used to represent links when both of them have same IP address.
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Date: Tue, 12 Mar 2019 14:42:10 +0000
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Subject: Re: [spring] Which SID is used to represent links when both of them have same IP address.
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Thread-Topic: [spring] Which SID is used to represent links when both of them have same IP address.
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Subject: Re: [spring] Which SID is used to represent links when both of them have same IP address.
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From: Paul Mattes <pamattes@microsoft.com>
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Thread-Topic: [spring] Which SID is used to represent links when both of them have same IP address.
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Subject: Re: [spring] Which SID is used to represent links when both of them have same IP address.
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From: Yu Tianpeng <yutianpeng.ietf@gmail.com>
Date: Tue, 12 Mar 2019 17:31:23 +0000
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To: tech_kals Kals <tech.kals@gmail.com>
Cc: martin.pilka@pantheon.tech, ask-segment-routing@cisco.com, spring@ietf.org
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Subject: Re: [spring] Which SID is used to represent links when both of them have same IP address.
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Hi,
Brief answer below:
Each vrf can be steered into a sr policy.
In the sr policy you can use prefix or adj sids or combination.
There is no much mystery if you know RSVP TE well. A sr policy gives
similar capabilities of a RSVP TE tunnel but aimed to be simplified without
maintaining signaling status along the path. SR aims to be simplified.
You can also steer traffic into different sr policies per destination ip or
even more criterias.
Cheers,
Tim



On Tue, 12 Mar 2019, 05:36 tech_kals Kals, <tech.kals@gmail.com> wrote:

> Hi experts,
>
>
> Would like to know which SID can be used for the interfaces which are
> having same IP address and have different VRFs.
>
>
> Assume there are two interfaces on the same router.
>
> Both are having same IP address and they are differentiated using VRF.
>
> So, the config looks as shown below.
>
>
> eth1 ----> VRF1: 20.1.1.1/24
>
> eth2 ----> VRF2: 20.1.1.1/24
>
>
> Which SID can be used to represent these links ? Can we use AdjSID ?
>
>
> Thanks,
>
> Kaliyaperumal K
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

--0000000000008d07b80583e90f63
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<div dir=3D"auto">Hi,<div dir=3D"auto">Brief answer below:<br><div dir=3D"a=
uto">Each vrf can be steered into a sr policy.</div><div dir=3D"auto">In th=
e sr policy you can use prefix or adj sids or combination.</div><div dir=3D=
"auto">There is no much mystery if you know RSVP TE well. A sr policy gives=
 similar capabilities of a RSVP TE tunnel but aimed to be simplified withou=
t maintaining signaling status along the path. SR aims to be simplified.</d=
iv><div dir=3D"auto">You can also steer traffic into different sr policies =
per destination ip or even more criterias.=C2=A0</div><div dir=3D"auto">Che=
ers,</div><div dir=3D"auto">Tim</div><div dir=3D"auto"><br></div></div><br>=
<br><div class=3D"gmail_quote" dir=3D"auto"><div dir=3D"ltr" class=3D"gmail=
_attr">On Tue, 12 Mar 2019, 05:36 tech_kals Kals, &lt;<a href=3D"mailto:tec=
h.kals@gmail.com" target=3D"_blank" rel=3D"noreferrer">tech.kals@gmail.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 dir=3D"ltr"><p =
style=3D"color:rgb(80,0,80);background-image:initial;background-position:in=
itial;background-size:initial;background-repeat:initial;background-origin:i=
nitial;background-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-=
family:&quot;Times New Roman&quot;,serif"><span style=3D"font-size:12pt;col=
or:black;font-family:Calibri,sans-serif">Hi experts,</span></p><p style=3D"=
color:rgb(80,0,80);background-image:initial;background-position:initial;bac=
kground-size:initial;background-repeat:initial;background-origin:initial;ba=
ckground-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&q=
uot;Times New Roman&quot;,serif"><br></p><p style=3D"color:rgb(80,0,80);bac=
kground-image:initial;background-position:initial;background-size:initial;b=
ackground-repeat:initial;background-origin:initial;background-clip:initial;=
margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Roman&qu=
ot;,serif">Would like to know which SID can be used for the interfaces whic=
h are having same IP address and have different VRFs.</p><p style=3D"color:=
rgb(80,0,80);background-image:initial;background-position:initial;backgroun=
d-size:initial;background-repeat:initial;background-origin:initial;backgrou=
nd-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Ti=
mes New Roman&quot;,serif"><br></p><p style=3D"color:rgb(80,0,80);backgroun=
d-image:initial;background-position:initial;background-size:initial;backgro=
und-repeat:initial;background-origin:initial;background-clip:initial;margin=
:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Roman&quot;,se=
rif"><span style=3D"font-size:12pt;color:black;font-family:Calibri,sans-ser=
if">Assume there are two interfaces on the same router.=C2=A0</span></p><p =
style=3D"color:rgb(80,0,80);background-image:initial;background-position:in=
itial;background-size:initial;background-repeat:initial;background-origin:i=
nitial;background-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-=
family:&quot;Times New Roman&quot;,serif"><span style=3D"font-size:12pt;col=
or:black;font-family:Calibri,sans-serif">Both are having same IP address an=
d they are differentiated using VRF.</span></p><p style=3D"color:rgb(80,0,8=
0);background-image:initial;background-position:initial;background-size:ini=
tial;background-repeat:initial;background-origin:initial;background-clip:in=
itial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Ro=
man&quot;,serif"><span style=3D"font-size:12pt;color:black;font-family:Cali=
bri,sans-serif">So, the config looks as shown below.</span></p><p style=3D"=
color:rgb(80,0,80);background-image:initial;background-position:initial;bac=
kground-size:initial;background-repeat:initial;background-origin:initial;ba=
ckground-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&q=
uot;Times New Roman&quot;,serif"><span style=3D"font-size:12pt;color:black;=
font-family:Calibri,sans-serif"><br></span></p><p style=3D"color:rgb(80,0,8=
0);background-image:initial;background-position:initial;background-size:ini=
tial;background-repeat:initial;background-origin:initial;background-clip:in=
itial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Ro=
man&quot;,serif"><span style=3D"font-size:12pt;color:black;font-family:Cali=
bri,sans-serif">eth1 ----&gt; VRF1: <a href=3D"http://20.1.1.1/24" rel=3D"n=
oreferrer noreferrer" target=3D"_blank">20.1.1.1/24</a></span></p><p style=
=3D"color:rgb(80,0,80);background-image:initial;background-position:initial=
;background-size:initial;background-repeat:initial;background-origin:initia=
l;background-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-famil=
y:&quot;Times New Roman&quot;,serif"><span style=3D"color:rgb(0,0,0);font-f=
amily:Calibri,sans-serif">eth2 ----&gt; VRF2: <a href=3D"http://20.1.1.1/24=
" rel=3D"noreferrer noreferrer" target=3D"_blank">20.1.1.1/24</a></span>=C2=
=A0=C2=A0<span style=3D"font-size:12pt;color:black;font-family:Calibri,sans=
-serif"><br></span></p><p style=3D"color:rgb(80,0,80);background-image:init=
ial;background-position:initial;background-size:initial;background-repeat:i=
nitial;background-origin:initial;background-clip:initial;margin:0in 0in 0.0=
001pt;font-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><span s=
tyle=3D"font-size:12pt;color:black;font-family:Calibri,sans-serif"><br></sp=
an></p><p style=3D"background-image:initial;background-position:initial;bac=
kground-size:initial;background-repeat:initial;background-origin:initial;ba=
ckground-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt"><font color=
=3D"#000000" face=3D"Calibri, sans-serif">Which SID can be used to represen=
t these links ? Can we use AdjSID ?</font></p><p style=3D"background-image:=
initial;background-position:initial;background-size:initial;background-repe=
at:initial;background-origin:initial;background-clip:initial;margin:0in 0in=
 0.0001pt;font-size:12pt"><font color=3D"#000000" face=3D"Calibri, sans-ser=
if"><br></font></p><p style=3D"background-image:initial;background-position=
:initial;background-size:initial;background-repeat:initial;background-origi=
n:initial;background-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt"><=
font color=3D"#000000" face=3D"Calibri, sans-serif">Thanks,</font></p><p st=
yle=3D"background-image:initial;background-position:initial;background-size=
:initial;background-repeat:initial;background-origin:initial;background-cli=
p:initial;margin:0in 0in 0.0001pt;font-size:12pt"><font color=3D"#000000" f=
ace=3D"Calibri, sans-serif">Kaliyaperumal K</font></p></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>

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To: ask-segment-routing@cisco.com,  "Stefano Previdi (sprevidi)" <sprevidi@cisco.com>, cfilsfil@cisco.com,  "Ahmed Bashandy (bashandy)" <bashandy@cisco.com>, "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>,  "Peter Psenak (ppsenak)" <ppsenak@cisco.com>, martin.pilka@pantheon.tech,  "spring@ietf.org" <spring@ietf.org>
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Subject: [spring] How would Traffic handoff happen from aggregate network to core network ?
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Hi Experts,


I just want to know how will the traffic handoff happen from aggregate
network to core network ?

Assume, core is running RSVP-TE, so IP handoff  can be done on edge router ?



I don't think, SDN controller can control RSVP enabled routers. So, how it
is to make end-to-end TE i.e from Aggregate router to Core Router ?


Thanks,

__kals__

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<div dir=3D"ltr"><p style=3D"background-image:initial;background-position:i=
nitial;background-size:initial;background-repeat:initial;background-origin:=
initial;background-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font=
-family:&quot;Times New Roman&quot;,serif"><span style=3D"font-family:Calib=
ri,sans-serif;color:black;background-image:initial;background-position:init=
ial;background-size:initial;background-repeat:initial;background-origin:ini=
tial;background-clip:initial">Hi Experts,</span></p><p style=3D"background-=
image:initial;background-position:initial;background-size:initial;backgroun=
d-repeat:initial;background-origin:initial;background-clip:initial;margin:0=
in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Roman&quot;,seri=
f"><span style=3D"font-family:Calibri,sans-serif;color:black;background-ima=
ge:initial;background-position:initial;background-size:initial;background-r=
epeat:initial;background-origin:initial;background-clip:initial"><br></span=
></p><p style=3D"background-image:initial;background-position:initial;backg=
round-size:initial;background-repeat:initial;background-origin:initial;back=
ground-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quo=
t;Times New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-seri=
f;color:black;background-image:initial;background-position:initial;backgrou=
nd-size:initial;background-repeat:initial;background-origin:initial;backgro=
und-clip:initial">I just want to know how</span><span style=3D"color:black;=
font-family:Calibri,sans-serif;font-size:12pt">=C2=A0will the traffic hando=
ff happen from aggregate network to core network ?</span></p><p style=3D"ba=
ckground-image:initial;background-position:initial;background-size:initial;=
background-repeat:initial;background-origin:initial;background-clip:initial=
;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Roman&q=
uot;,serif"><span style=3D"font-family:Calibri,sans-serif;color:black"></sp=
an></p><p style=3D"background-image:initial;background-position:initial;bac=
kground-size:initial;background-repeat:initial;background-origin:initial;ba=
ckground-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&q=
uot;Times New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-se=
rif;color:black;background-image:initial;background-position:initial;backgr=
ound-size:initial;background-repeat:initial;background-origin:initial;backg=
round-clip:initial">Assume, core is running RSVP-TE, so=C2=A0IP handoff=C2=
=A0 can be done=C2=A0on edge router ?</span><span style=3D"font-size:12pt;f=
ont-family:Calibri,sans-serif;color:black">=C2=A0 =C2=A0=C2=A0</span></p><p=
 style=3D"background-image:initial;background-position:initial;background-s=
ize:initial;background-repeat:initial;background-origin:initial;background-=
clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times=
 New Roman&quot;,serif"><span style=3D"font-size:12pt;font-family:Calibri,s=
ans-serif;color:black"><br></span></p><p style=3D"background-image:initial;=
background-position:initial;background-size:initial;background-repeat:initi=
al;background-origin:initial;background-clip:initial;margin:0in 0in 0.0001p=
t;font-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><span style=
=3D"font-size:12pt;font-family:Calibri,sans-serif;color:black">I don&#39;t =
think, SDN controller can=C2=A0control RSVP enabled=C2=A0routers. So,=C2=A0=
</span><span style=3D"font-size:12pt;color:black;font-family:Calibri,sans-s=
erif">how it is to make end-to-end=C2=A0TE i.e from Aggregate router to Cor=
e Router ?</span></p><p style=3D"background-image:initial;background-positi=
on:initial;background-size:initial;background-repeat:initial;background-ori=
gin:initial;background-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;=
font-family:&quot;Times New Roman&quot;,serif"><span style=3D"font-size:12p=
t;color:black;font-family:Calibri,sans-serif"><br></span></p><p style=3D"ba=
ckground-image:initial;background-position:initial;background-size:initial;=
background-repeat:initial;background-origin:initial;background-clip:initial=
;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Roman&q=
uot;,serif"><span style=3D"font-size:12pt;color:black;font-family:Calibri,s=
ans-serif">Thanks,</span></p><p style=3D"background-image:initial;backgroun=
d-position:initial;background-size:initial;background-repeat:initial;backgr=
ound-origin:initial;background-clip:initial;margin:0in 0in 0.0001pt;font-si=
ze:12pt;font-family:&quot;Times New Roman&quot;,serif"><span style=3D"font-=
size:12pt;color:black;font-family:Calibri,sans-serif">__kals__</span></p></=
div>

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From: tech_kals Kals <tech.kals@gmail.com>
Date: Wed, 13 Mar 2019 10:49:34 +0530
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To: ask-segment-routing@cisco.com,  "Stefano Previdi (sprevidi)" <sprevidi@cisco.com>, cfilsfil@cisco.com,  "Ahmed Bashandy (bashandy)" <bashandy@cisco.com>, "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>,  "Peter Psenak (ppsenak)" <ppsenak@cisco.com>, martin.pilka@pantheon.tech,  "spring@ietf.org" <spring@ietf.org>
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Subject: [spring] How to support OAM on SR networks ?
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Content-Type: text/plain; charset="UTF-8"

Hi experts,

Am so curious to know about how OAM can be supported on segment-routing
networks ?


I think, MPLS OAM is not possible with SR as network infrastructure doesn't
have any LSP state.


With SDN controller in place, do we really need traditional OAM ?

Assume, SDN controller can identify the issue on the network, and it can
configure an alternate path on the defected node.


If SDN controller can do OAM, but at what cost (like BGP-LS) ?


Thanks,

__Kals__

--0000000000000058b60583f2f81b
Content-Type: text/html; charset="UTF-8"
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<div dir=3D"ltr">Hi experts,<div><br></div><div>Am so curious to know about=
 how OAM can be supported o<span style=3D"color:black;font-family:Calibri,s=
ans-serif;font-size:12pt">n=C2=A0segment-routing networks ?</span></div><di=
v><p style=3D"background-image:initial;background-position:initial;backgrou=
nd-size:initial;background-repeat:initial;background-origin:initial;backgro=
und-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;T=
imes New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-serif;c=
olor:black"><br></span></p><p style=3D"background-image:initial;background-=
position:initial;background-size:initial;background-repeat:initial;backgrou=
nd-origin:initial;background-clip:initial;margin:0in 0in 0.0001pt;font-size=
:12pt;font-family:&quot;Times New Roman&quot;,serif"><span style=3D"font-fa=
mily:Calibri,sans-serif;color:black">I think, MPLS OAM is not possible with=
 SR as=C2=A0</span><span style=3D"color:rgb(0,0,0);font-family:Calibri,sans=
-serif">network infrastructure doesn&#39;t have any LSP state.</span></p><p=
 style=3D"background-image:initial;background-position:initial;background-s=
ize:initial;background-repeat:initial;background-origin:initial;background-=
clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times=
 New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-serif;color=
:black"><br></span></p><p style=3D"background-image:initial;background-posi=
tion:initial;background-size:initial;background-repeat:initial;background-o=
rigin:initial;background-clip:initial;margin:0in 0in 0.0001pt;font-size:12p=
t;font-family:&quot;Times New Roman&quot;,serif"><span style=3D"font-family=
:Calibri,sans-serif;color:black">W</span><span style=3D"color:black;font-fa=
mily:Calibri,sans-serif;font-size:12pt">ith SDN controller in place,=C2=A0d=
o we really need traditional OAM=C2=A0?=C2=A0</span></p><p style=3D"backgro=
und-image:initial;background-position:initial;background-size:initial;backg=
round-repeat:initial;background-origin:initial;background-clip:initial;marg=
in:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Roman&quot;,=
serif"><span style=3D"color:black;font-family:Calibri,sans-serif;font-size:=
12pt">Assume, SDN controller can identify the issue on the network, and it =
can configure an alternate path on the defected node.</span></p><p style=3D=
"background-image:initial;background-position:initial;background-size:initi=
al;background-repeat:initial;background-origin:initial;background-clip:init=
ial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Roma=
n&quot;,serif"><br></p><p style=3D"background-image:initial;background-posi=
tion:initial;background-size:initial;background-repeat:initial;background-o=
rigin:initial;background-clip:initial;margin:0in 0in 0.0001pt;font-size:12p=
t;font-family:&quot;Times New Roman&quot;,serif"><span style=3D"font-family=
:Calibri,sans-serif;color:black"><span style=3D"background-image:initial;ba=
ckground-position:initial;background-size:initial;background-repeat:initial=
;background-origin:initial;background-clip:initial">If SDN controller can d=
o=C2=A0OAM, but at what cost (like BGP-LS) ?</span></span></p><p style=3D"b=
ackground-image:initial;background-position:initial;background-size:initial=
;background-repeat:initial;background-origin:initial;background-clip:initia=
l;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Roman&=
quot;,serif"><span style=3D"font-family:Calibri,sans-serif;color:black"><sp=
an style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial"><br></span></span></p><p style=3D"background-image:initial;=
background-position:initial;background-size:initial;background-repeat:initi=
al;background-origin:initial;background-clip:initial;margin:0in 0in 0.0001p=
t;font-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><span style=
=3D"font-family:Calibri,sans-serif;color:black"><span style=3D"background-i=
mage:initial;background-position:initial;background-size:initial;background=
-repeat:initial;background-origin:initial;background-clip:initial">Thanks,<=
/span></span></p><p style=3D"background-image:initial;background-position:i=
nitial;background-size:initial;background-repeat:initial;background-origin:=
initial;background-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font=
-family:&quot;Times New Roman&quot;,serif"><span style=3D"font-family:Calib=
ri,sans-serif;color:black"><span style=3D"background-image:initial;backgrou=
nd-position:initial;background-size:initial;background-repeat:initial;backg=
round-origin:initial;background-clip:initial">__Kals__</span></span></p><p =
style=3D"background-image:initial;background-position:initial;background-si=
ze:initial;background-repeat:initial;background-origin:initial;background-c=
lip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times =
New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-serif;color:=
black"><span style=3D"background-image:initial;background-position:initial;=
background-size:initial;background-repeat:initial;background-origin:initial=
;background-clip:initial"><br></span></span></p></div></div>

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From: "Ketan Talaulikar (ketant)" <ketant@cisco.com>
To: tech_kals Kals <tech.kals@gmail.com>, Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
CC: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, "spring@ietf.org" <spring@ietf.org>, "Clarence Filsfils (cfilsfil)" <cfilsfil@cisco.com>, "ask-segment-routing(mailer list)" <ask-segment-routing@cisco.com>, "Stefano Previdi (sprevidi)" <sprevidi@cisco.com>, "Peter Psenak (ppsenak)" <ppsenak@cisco.com>
Thread-Topic: [spring] Questions on Segment Routing
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From: Rajesh M <mrajesh@juniper.net>
To: "cfilsfil@cisco.com" <cfilsfil@cisco.com>, "stefano@previdi.net" <stefano@previdi.net>, "john@leddy.net" <john@leddy.net>, "satoru.matsushima@g.softbank.co.jp" <satoru.matsushima@g.softbank.co.jp>
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Please find observations on draft-ietf-6man-segment-routing-header-16


  1.  Section 8.1 Segment Routing Header Flags Register why we need this bi=
t for HMAC ? we should remove this section from this draft

Suggested Description Reference
Bit
-----------------------------------------------------
4         HMAC         This document


  1.  Better to mention Last Entry field usage apart from validation (to de=
termine the starting location of the TLVs)

Thanks
Rajesh


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<p class=3D"MsoNormal">Please find observations on draft-ietf-6man-segment-=
routing-header-16<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 =
lfo1">Section 8.1
<span style=3D"font-size:10.0pt;font-family:Courier">Segment Routing Header=
 Flags Register why we need this bit for HMAC ? we should remove this secti=
on from this draft</span><o:p></o:p></li></ol>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:10.0pt;font-family:Courier">Suggested Description Reference<o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:10.0pt;font-family:Courier">Bit<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:10.0pt;font-family:Courier">--------------------------------------------=
---------<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:Courier"=
>4 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;HMAC &nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This document<o:p></o:p></span></p>
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<li class=3D"MsoListParagraph" style=3D"margin-left:0in;mso-list:l0 level1 =
lfo1">Better to mention
<span style=3D"font-size:10.0pt;font-family:Courier">Last Entry field usage=
 apart from validation
</span><span style=3D"font-size:12.0pt;font-family:Courier">(</span><span s=
tyle=3D"font-size:12.0pt">to determine the starting location of the TLVs)</=
span><o:p></o:p></li></ol>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Thanks<o:p></o:p></p>
<p class=3D"MsoNormal">Rajesh<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
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From: Rajesh M <mrajesh@juniper.net>
To: "ppsenak@cisco.com" <ppsenak@cisco.com>, "cfilsfil@cisco.com" <cfilsfil@cisco.com>, "abashandy.ietf@gmail.com" <abashandy.ietf@gmail.com>, "bruno.decraene@orange.com" <bruno.decraene@orange.com>, "huzhibo@huawei.com" <huzhibo@huawei.com>
CC: Ron Bonica <rbonica@juniper.net>, SPRING WG <spring@ietf.org>, "ipv6@ietf.org" <ipv6@ietf.org>
Thread-Topic: draft-bashandy-isis-srv6-extensions-05.txt
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Subject: [spring] draft-bashandy-isis-srv6-extensions-05.txt
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1)
SRv6 Endpoint Function: 2 octets. As defined in [I-D.filsfils-spring-srv6-n=
etwork-programming]
Legal function values for this sub-TLV are defined in Section 7.

This should be Section 8 I think, section 8 contains Advertising Endpoint B=
ehaviors.
Al reference to section 7 , we must change to section 8 (4 places)

2)

SRv6 Endpoint Function already mentions Endpoint Function Types.

SID usually will be a combination of Locator:Function:ARGS.

Since SID already contains Function, why there is a need for additional SRv=
6 Endpoint Function field ? Am I missing something.

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Flags | SRv6 Endpoint Function |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| SID (128 bits) . . . |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| SID (cont . . .) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| SID (cont . . .) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| SID (cont . . .) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


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<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:10.0pt;font-family:Courier;color:black">1)<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:10.0pt;font-family:Courier;color:black">SRv6 Endpoint Function: 2 octets=
. As defined in [</span><span style=3D"font-size:10.0pt;font-family:Courier=
;color:blue">I-D.filsfils-spring-srv6-network-programming</span><span style=
=3D"font-size:10.0pt;font-family:Courier;color:black">]<o:p></o:p></span></=
p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:Courier;=
color:black">Legal function values for this sub-TLV are defined in
</span><span style=3D"font-size:10.0pt;font-family:Courier;color:blue">Sect=
ion 7</span><span style=3D"font-size:10.0pt;font-family:Courier;color:black=
">.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:Courier;=
color:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:Courier;=
color:red">This should be Section 8 I think, section 8 contains
</span><span style=3D"font-size:10.0pt;font-family:Courier">Advertising End=
point Behaviors.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:Courier"=
>Al reference to section 7 , we must change to section 8 (4 places)<o:p></o=
:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:Courier;=
color:red"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal">2)<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:Courier;=
color:red">SRv6 Endpoint Function
</span><span style=3D"font-size:10.0pt;font-family:Courier">already mention=
s Endpoint Function Types.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:Courier"=
><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:Courier;=
color:#0070C0">SID</span><span style=3D"font-size:10.0pt;font-family:Courie=
r"> usually will be a combination of Locator:<span style=3D"color:#00B050">=
Function</span>:ARGS.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:Courier"=
><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:Courier"=
>Since SID already contains
<span style=3D"color:#00B050">Function</span>, why there is a need for addi=
tional <span style=3D"color:red">
SRv6 Endpoint Function field ? Am I missing something.</span><o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:10.0pt;font-family:Courier">&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#=
43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;=
-&#43;-&#43;-&#43;-&#43;-&#43;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:10.0pt;font-family:Courier">| Flags |
<span style=3D"color:red">SRv6 Endpoint Function </span>|<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:10.0pt;font-family:Courier">&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#=
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-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#=
43;<o:p></o:p></span></p>
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ze:10.0pt;font-family:Courier;color:#0070C0">| SID (128 bits) . . . |<o:p><=
/o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:10.0pt;font-family:Courier;color:#0070C0">&#43;-&#43;-&#43;-&#43;-&#43;-=
&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#4=
3;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-=
&#43;-&#43;-&#43;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:10.0pt;font-family:Courier;color:#0070C0">| SID (cont . . .) |<o:p></o:p=
></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:10.0pt;font-family:Courier;color:#0070C0">&#43;-&#43;-&#43;-&#43;-&#43;-=
&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#4=
3;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-=
&#43;-&#43;-&#43;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:10.0pt;font-family:Courier;color:#0070C0">| SID (cont . . .) |<o:p></o:p=
></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:10.0pt;font-family:Courier;color:#0070C0">&#43;-&#43;-&#43;-&#43;-&#43;-=
&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#4=
3;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-=
&#43;-&#43;-&#43;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:10.0pt;font-family:Courier;color:#0070C0">| SID (cont . . .) |<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:Courier;=
color:#0070C0">&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-=
&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#4=
3;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;-&#43;</span><span =
style=3D"font-size:10.0pt;font-family:Courier"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
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From nobody Wed Mar 13 05:42:55 2019
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To: Rajesh M <mrajesh@juniper.net>, "cfilsfil@cisco.com" <cfilsfil@cisco.com>,  "abashandy.ietf@gmail.com" <abashandy.ietf@gmail.com>, "bruno.decraene@orange.com" <bruno.decraene@orange.com>, "huzhibo@huawei.com" <huzhibo@huawei.com>
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From: Peter Psenak <ppsenak@cisco.com>
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Hi Rajesh,


On 13/03/2019 07:02 , Rajesh M wrote:
> 1)
>
> SRv6 Endpoint Function: 2 octets. As defined in
> [I-D.filsfils-spring-srv6-network-programming]
>
> Legal function values for this sub-TLV are defined in Section 7.
>
>
>
> This should be Section 8 I think, section 8 contains Advertising
> Endpoint Behaviors.
>
> Al reference to section 7 , we must change to section 8 (4 places)
>

fair enough, will fix that in the next version.

>
>
> 2)
>
>
>
> SRv6 Endpoint Function already mentions Endpoint Function Types.
>
>
>
> SIDusually will be a combination of Locator:Function:ARGS.
>
>
>
> Since SID already contains Function, why there is a need for additional
> SRv6 Endpoint Function field ? Am I missing something.


SRv6 Endpoint Function represents the behavior, which comes from
"SRv6 Endpoint Behaviors Registry". That value is not present in the 128 
bits SID value, which is locally assigned by the advertising node.

thanks,
Peter





>
>
>
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>
> | Flags | SRv6 Endpoint Function |
>
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>
> | SID (128 bits) . . . |
>
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>
> | SID (cont . . .) |
>
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>
> | SID (cont . . .) |
>
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>
> | SID (cont . . .) |
>
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>
>
>


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Hi SPRING WG,



This email initiates a three week call for working group adoption for draft=
-filsfils-spring-srv6-network-programming. (Three weeks to account for the =
IETF week)



Please indicate your support, comments, or objection, for adopting this dra=
ft as a working group item by April, 3rd, 2019 (aka 2019-04-03)

We are particularly interested in hearing from working group members that a=
re not co-authors of this draft.



We are also looking for volunteers who would be ready to perform a technica=
l review of this work at some later stage, such as before or during WG the =
last call.



In parallel to this adoption call, I will send an IPR call for this documen=
t. We will need all authors and contributors to confirm their IPR position =
on this document.

There is currently 1 IPR filled (2)



(1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-program=
ming-07

(2)  https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-sr=
v6-network-programming&submit=3Ddraft





Thank you,

--Bruno & Rob.


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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 email init=
iates a three week call for working group adoption for draft-filsfils-sprin=
g-srv6-network-programming. (Three weeks to account for the IETF week)<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">Please indicate=
 your support, comments, or objection, for adopting this draft as a working=
 group item by April, 3<sup>rd</sup>, 2019 (aka 2019-04-03)<o:p></o:p></spa=
n></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">We are particul=
arly interested in hearing from working group members that are not co-autho=
rs of this 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">We are also loo=
king for volunteers who would be ready to perform a technical review of thi=
s work at some later stage, such as before or during WG the last call.<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 to =
this adoption call, I will send an IPR call for this document. We will need=
 all authors and contributors to confirm their IPR position on this documen=
t.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">There is curren=
tly 1 IPR filled (2)<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 style=3D"margin-left:42.0pt;text-indent:-24.0pt;mso-list:l1 level1 lfo=
2"><![if !supportLists]><span lang=3D"EN-US" style=3D"mso-fareast-font-fami=
ly:&quot;Courier New&quot;;mso-ansi-language:EN-US"><span style=3D"mso-list=
:Ignore">(1)<span style=3D"font:7.0pt &quot;Times New Roman&quot;">&nbsp; <=
/span></span></span><![endif]><span lang=3D"EN-US" style=3D"mso-ansi-langua=
ge:EN-US"><a href=3D"https://tools.ietf.org/html/draft-filsfils-spring-srv6=
-network-programming-07">https://tools.ietf.org/html/draft-filsfils-spring-=
srv6-network-programming-07</a><o:p></o:p></span></pre>
<pre style=3D"margin-left:42.0pt;text-indent:-24.0pt;mso-list:l1 level1 lfo=
2"><![if !supportLists]><span lang=3D"EN-US" style=3D"mso-fareast-font-fami=
ly:&quot;Courier New&quot;;mso-ansi-language:EN-US"><span style=3D"mso-list=
:Ignore">(2)<span style=3D"font:7.0pt &quot;Times New Roman&quot;">&nbsp; <=
/span></span></span><![endif]><span lang=3D"EN-US" style=3D"mso-ansi-langua=
ge:EN-US"><a href=3D"https://datatracker.ietf.org/ipr/search/?id=3Ddraft-fi=
lsfils-spring-srv6-network-programming&amp;submit=3Ddraft">https://datatrac=
ker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-srv6-network-programmin=
g&amp;submit=3Ddraft</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"><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 &amp; Rob.<o:p></o:p></pre>
<p class=3D"MsoNormal" style=3D"tab-stops:179.25pt"><o:p>&nbsp;</o:p></p>
</div>
<PRE>______________________________________________________________________=
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Hi authors, SPRING WG,



In parallel to the call for adoption for draft-filsfils-spring-srv6-network=
-programming (1), we would like to poll for IPR.



If you are aware of IPR that applies to draft-filsfils-spring-srv6-network-=
programming please respond to this email.

If you are aware of IPR, please indicate whether it has been disclosed in a=
ccordance 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.

If you are not an author or contributor, please explicitly respond only if =
you are aware of IPR that has not yet been disclosed.



This document will not advance into the working group until IPR confirmatio=
ns have been received from all authors and contributors.



Thank you,



(1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-program=
ming-07





--Bruno & Rob.


___________________________________________________________________________=
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pt">
<div class=3D"WordSection1">
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">Hi authors, SPR=
ING 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">In parallel to =
the call for adoption for draft-filsfils-spring-srv6-network-programming (1=
), we would like to poll for IPR.<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 are awar=
e of IPR that applies to draft-filsfils-spring-srv6-network-programming ple=
ase respond to this email.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">If you are awar=
e of IPR, please indicate whether it has been disclosed in accordance with =
IETF IPR rules (RFCs 3979, 4879, 3669 and 5378 provide more details).<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 are an *=
author or contributor* please respond to this email regardless of whether o=
r not you're aware of any IPR.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">If you are not =
an author or contributor, please explicitly respond only if you are aware o=
f IPR that has not yet been disclosed.<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 document w=
ill not advance into the working group until IPR confirmations have been re=
ceived from all authors and contributors.<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">Thank you,<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 style=3D"margin-left:24.0pt;text-indent:-24.0pt;mso-list:l0 level1 lfo=
1"><![if !supportLists]><span lang=3D"EN-US" style=3D"mso-fareast-font-fami=
ly:&quot;Courier New&quot;;mso-ansi-language:EN-US"><span style=3D"mso-list=
:Ignore">(1)<span style=3D"font:7.0pt &quot;Times New Roman&quot;">&nbsp; <=
/span></span></span><![endif]><span lang=3D"EN-US" style=3D"mso-ansi-langua=
ge:EN-US"><a href=3D"https://tools.ietf.org/html/draft-filsfils-spring-srv6=
-network-programming-07">https://tools.ietf.org/html/draft-filsfils-spring-=
srv6-network-programming-07</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"><o:p>&nbsp;</o:=
p></span></pre>
<pre>--Bruno &amp; Rob.<o:p></o:p></pre>
<p class=3D"MsoNormal" style=3D"tab-stops:135.0pt"><o:p>&nbsp;</o:p></p>
</div>
<PRE>______________________________________________________________________=
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From nobody Wed Mar 13 12:31:18 2019
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Subject: [spring] The SPRING WG has placed draft-filsfils-spring-srv6-network-programming in state "Call For Adoption By WG Issued"
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The SPRING WG has placed draft-filsfils-spring-srv6-network-programming in
state Call For Adoption By WG Issued (entered by Bruno Decraene)

The document is available at
https://datatracker.ietf.org/doc/draft-filsfils-spring-srv6-network-programming/

Comment:
IPR call:
https://mailarchive.ietf.org/arch/msg/spring/ewznLZ_nIkkLyeOL76QU7ENr6Fs

Adoption call:
https://mailarchive.ietf.org/arch/msg/spring/Fr8RtiWt-tLjHtWnhPkhCAPmesM


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To: bruno.decraene@orange.com, SPRING WG <spring@ietf.org>
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Cc: "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
From: Peter Psenak <ppsenak@cisco.com>
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Subject: Re: [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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I support the working group adoption.

Peter

On 13/03/2019 19:49 , bruno.decraene@orange.com wrote:
> Hi SPRING WG,
>
>
>
> This email initiates a three week call for working group adoption for
> draft-filsfils-spring-srv6-network-programming. (Three weeks to account
> for the IETF week)
>
>
>
> Please indicate your support, comments, or objection, for adopting this
> draft as a working group item by April, 3^rd , 2019 (aka 2019-04-03)
>
> We are particularly interested in hearing from working group members
> that are not co-authors of this draft.
>
>
>
> We are also looking for volunteers who would be ready to perform a
> technical review of this work at some later stage, such as before or
> during WG the last call.
>
>
>
> In parallel to this adoption call, I will send an IPR call for this
> document. We will need all authors and contributors to confirm their IPR
> position on this document.
>
> There is currently 1 IPR filled (2)
>
>
>
> (1)
> https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-07
>
> (2)
> https://datatracker.ietf.org/ipr/search/?id=draft-filsfils-spring-srv6-network-programming&submit=draft
>
>
>
>
>
> Thank you,
>
> --Bruno & Rob.
>
>
>
> _________________________________________________________________________________________________________________________
>
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Subject: Re: [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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From: Robert Raszuk <rraszuk@gmail.com>
Date: Wed, 13 Mar 2019 21:07:03 +0100
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To: Bruno Decraene <bruno.decraene@orange.com>
Cc: SPRING WG <spring@ietf.org>,  "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/xygCl1KVy8Msfkx6TR6fnEREd94>
Subject: Re: [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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Support !

Thx,
R.

On Wed, Mar 13, 2019 at 7:49 PM <bruno.decraene@orange.com> wrote:

> Hi SPRING WG,
>
>
>
> This email initiates a three week call for working group adoption for draft-filsfils-spring-srv6-network-programming. (Three weeks to account for the IETF week)
>
>
>
> Please indicate your support, comments, or objection, for adopting this draft as a working group item by April, 3rd, 2019 (aka 2019-04-03)
>
> We are particularly interested in hearing from working group members that are not co-authors of this draft.
>
>
>
> We are also looking for volunteers who would be ready to perform a technical review of this work at some later stage, such as before or during WG the last call.
>
>
>
> In parallel to this adoption call, I will send an IPR call for this document. We will need all authors and contributors to confirm their IPR position on this document.
>
> There is currently 1 IPR filled (2)
>
>
>
> (1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-07
>
> (2)  https://datatracker.ietf.org/ipr/search/?id=draft-filsfils-spring-srv6-network-programming&submit=draft
>
>
>
>
>
> Thank you,
>
> --Bruno & Rob.
>
>
>
> _________________________________________________________________________________________________________________________
>
> 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.
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

--000000000000f0c4ab0583ff5937
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:arial,he=
lvetica,sans-serif;font-size:small">Support !=C2=A0</div><div class=3D"gmai=
l_default" style=3D"font-family:arial,helvetica,sans-serif;font-size:small"=
><br></div><div class=3D"gmail_default" style=3D"font-family:arial,helvetic=
a,sans-serif;font-size:small">Thx,</div><div class=3D"gmail_default" style=
=3D"font-family:arial,helvetica,sans-serif;font-size:small">R.</div></div><=
br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Wed,=
 Mar 13, 2019 at 7:49 PM &lt;<a href=3D"mailto:bruno.decraene@orange.com">b=
runo.decraene@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);padding-left:1ex">







<div lang=3D"FR">
<div class=3D"gmail-m_381807168461184353WordSection1">
<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 email initiates a three week call for workin=
g group adoption for draft-filsfils-spring-srv6-network-programming. (Three=
 weeks to account for the IETF week)<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 indicate your support, comments, or object=
ion, for adopting this draft as a working group item by April, 3<sup>rd</su=
p>, 2019 (aka 2019-04-03)<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US">We are particularly interested in hearing from wo=
rking group members that are not co-authors of this draft.<u></u><u></u></s=
pan></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">We are also looking for volunteers who would be r=
eady to perform a technical review of this work at some later stage, such a=
s before or during WG the last call.<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 to this adoption call, I will send an=
 IPR call for this document. We will need all authors and contributors to c=
onfirm their IPR position on this document.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US">There is currently 1 IPR filled (2)<u></u><u></u>=
</span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre style=3D"margin-left:42pt"><u></u><span lang=3D"EN-US"><span>(1)<span =
style=3D"font:7pt &quot;Times New Roman&quot;">=C2=A0 </span></span></span>=
<u></u><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draft-fi=
lsfils-spring-srv6-network-programming-07" target=3D"_blank">https://tools.=
ietf.org/html/draft-filsfils-spring-srv6-network-programming-07</a><u></u><=
u></u></span></pre>
<pre style=3D"margin-left:42pt"><u></u><span lang=3D"EN-US"><span>(2)<span =
style=3D"font:7pt &quot;Times New Roman&quot;">=C2=A0 </span></span></span>=
<u></u><span lang=3D"EN-US"><a href=3D"https://datatracker.ietf.org/ipr/sea=
rch/?id=3Ddraft-filsfils-spring-srv6-network-programming&amp;submit=3Ddraft=
" target=3D"_blank">https://datatracker.ietf.org/ipr/search/?id=3Ddraft-fil=
sfils-spring-srv6-network-programming&amp;submit=3Ddraft</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"><u></u>=C2=A0<u></u></span></pre>
<pre><span class=3D"gmail-m_381807168461184353SpellE">Thank</span> <span cl=
ass=3D"gmail-m_381807168461184353SpellE">you</span>,<u></u><u></u></pre>
<pre>--Bruno &amp; Rob.<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=
>
<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: "Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com>
To: IETF Secretariat <ietf-secretariat-reply@ietf.org>, "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>, "spring-chairs@ietf.org" <spring-chairs@ietf.org>, "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [spring] The SPRING WG has placed draft-filsfils-spring-srv6-network-programming in state "Call For Adoption By WG Issued"
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Subject: Re: [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/BIx2vIgUzBYjGxZPMkHomaBJx4w>
Subject: Re: [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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Support.

        pdm

From: spring <spring-bounces@ietf.org> On Behalf Of bruno.decraene@orange.c=
om
Sent: Wednesday, March 13, 2019 11:50 AM
To: SPRING WG <spring@ietf.org>
Cc: draft-filsfils-spring-srv6-network-programming@ietf.org
Subject: [spring] Working Group Adoption Call for draft-filsfils-spring-srv=
6-network-programming


Hi SPRING WG,



This email initiates a three week call for working group adoption for draft=
-filsfils-spring-srv6-network-programming. (Three weeks to account for the =
IETF week)



Please indicate your support, comments, or objection, for adopting this dra=
ft as a working group item by April, 3rd, 2019 (aka 2019-04-03)

We are particularly interested in hearing from working group members that a=
re not co-authors of this draft.



We are also looking for volunteers who would be ready to perform a technica=
l review of this work at some later stage, such as before or during WG the =
last call.



In parallel to this adoption call, I will send an IPR call for this documen=
t. We will need all authors and contributors to confirm their IPR position =
on this document.

There is currently 1 IPR filled (2)



(1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-program=
ming-07<https://nam06.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2=
Ftools.ietf.org%2Fhtml%2Fdraft-filsfils-spring-srv6-network-programming-07&=
data=3D02%7C01%7Cpamattes%40microsoft.com%7C8585f7d3f8dc4b7ab09208d6a7e4ab3=
5%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636880997907942811&sdata=3Dd=
Bm%2BHfifgpWQ%2FK0s5Ps4CdTdRnCQCguAqiaXvKaB%2Fpw%3D&reserved=3D0>

(2)  https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-sr=
v6-network-programming&submit=3Ddraft<https://nam06.safelinks.protection.ou=
tlook.com/?url=3Dhttps%3A%2F%2Fdatatracker.ietf.org%2Fipr%2Fsearch%2F%3Fid%=
3Ddraft-filsfils-spring-srv6-network-programming%26submit%3Ddraft&data=3D02=
%7C01%7Cpamattes%40microsoft.com%7C8585f7d3f8dc4b7ab09208d6a7e4ab35%7C72f98=
8bf86f141af91ab2d7cd011db47%7C1%7C0%7C636880997907952819&sdata=3DH22IV4L3aS=
kQXXGSLrNvtHX2csTzMK2d9LyZf2YtMyM%3D&reserved=3D0>





Thank you,

--Bruno & Rob.


___________________________________________________________________________=
______________________________________________



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Orange decline toute responsabilite si ce message a ete altere, deforme ou =
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<body lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal">Support.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <i>pdm</i=
><o:p></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;spring-bounces@ietf.org&gt; =
<b>On Behalf Of
</b>bruno.decraene@orange.com<br>
<b>Sent:</b> Wednesday, March 13, 2019 11:50 AM<br>
<b>To:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Cc:</b> draft-filsfils-spring-srv6-network-programming@ietf.org<br>
<b>Subject:</b> [spring] Working Group Adoption Call for draft-filsfils-spr=
ing-srv6-network-programming<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 email initiates a three week call for working group adoption for =
draft-filsfils-spring-srv6-network-programming. (Three weeks to account for=
 the IETF week)<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>Please indicate your support, comments, or objection, for adopting thi=
s draft as a working group item by April, 3<sup>rd</sup>, 2019 (aka 2019-04=
-03)<o:p></o:p></pre>
<pre>We are particularly interested in hearing from working group members t=
hat are not co-authors of this draft.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>We are also looking for volunteers who would be ready to perform a tec=
hnical review of this work at some later stage, such as before or during WG=
 the last call.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>In parallel to this adoption call, I will send an IPR call for this do=
cument. We will need all authors and contributors to confirm their IPR posi=
tion on this document.<o:p></o:p></pre>
<pre>There is currently 1 IPR filled (2)<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre style=3D"margin-left:42.0pt;text-indent:-24.0pt;mso-list:l0 level1 lfo=
2"><![if !supportLists]><span style=3D"mso-list:Ignore">(1)<span style=3D"f=
ont:7.0pt &quot;Times New Roman&quot;">&nbsp; </span></span><![endif]><a hr=
ef=3D"https://nam06.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Ft=
ools.ietf.org%2Fhtml%2Fdraft-filsfils-spring-srv6-network-programming-07&am=
p;data=3D02%7C01%7Cpamattes%40microsoft.com%7C8585f7d3f8dc4b7ab09208d6a7e4a=
b35%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636880997907942811&amp;sda=
ta=3DdBm%2BHfifgpWQ%2FK0s5Ps4CdTdRnCQCguAqiaXvKaB%2Fpw%3D&amp;reserved=3D0"=
>https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming=
-07</a><o:p></o:p></pre>
<pre style=3D"margin-left:42.0pt;text-indent:-24.0pt;mso-list:l0 level1 lfo=
2"><![if !supportLists]><span style=3D"mso-list:Ignore">(2)<span style=3D"f=
ont:7.0pt &quot;Times New Roman&quot;">&nbsp; </span></span><![endif]><a hr=
ef=3D"https://nam06.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fd=
atatracker.ietf.org%2Fipr%2Fsearch%2F%3Fid%3Ddraft-filsfils-spring-srv6-net=
work-programming%26submit%3Ddraft&amp;data=3D02%7C01%7Cpamattes%40microsoft=
.com%7C8585f7d3f8dc4b7ab09208d6a7e4ab35%7C72f988bf86f141af91ab2d7cd011db47%=
7C1%7C0%7C636880997907952819&amp;sdata=3DH22IV4L3aSkQXXGSLrNvtHX2csTzMK2d9L=
yZf2YtMyM%3D&amp;reserved=3D0">https://datatracker.ietf.org/ipr/search/?id=
=3Ddraft-filsfils-spring-srv6-network-programming&amp;submit=3Ddraft</a><o:=
p></o:p></pre>
<pre><o:p>&nbsp;</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 &amp; Rob.<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: "Acee Lindem (acee)" <acee@cisco.com>
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Subject: Re: [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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Date: Wed, 13 Mar 2019 13:37:21 -0700
From: Jeff Tantsura <jefftant.ietf@gmail.com>
To: SPRING WG <spring@ietf.org>, bruno.decraene@orange.com
Cc: "=?utf-8?Q?draft-filsfils-spring-srv6-network-programming=40ietf.org?=" <draft-filsfils-spring-srv6-network-programming@ietf.org>
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Subject: Re: [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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yes/support

Cheers,
Jeff
On Mar 13, 2019, 11:49 AM -0700, bruno.decraene@orange.com, wrote:
> Hi SPRING WG,
> This email initiates a three week call for working group adoption for draft-filsfils-spring-srv6-network-programming. (Three weeks to account for the IETF week)
> Please indicate your support, comments, or objection, for adopting this draft as a working group item by April, 3rd, 2019 (aka 2019-04-03)
> We are particularly interested in hearing from working group members that are not co-authors of this draft.
> We are also looking for volunteers who would be ready to perform a technical review of this work at some later stage, such as before or during WG the last call.
> In parallel to this adoption call, I will send an IPR call for this document. We will need all authors and contributors to confirm their IPR position on this document.
> There is currently 1 IPR filled (2)
> https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-07
> https://datatracker.ietf.org/ipr/search/?id=draft-filsfils-spring-srv6-network-programming&submit=draft
> Thank you,
> --Bruno & Rob.
>
> _________________________________________________________________________________________________________________________
>
> Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc
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> Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci.
>
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<html xmlns=3D=22http://www.w3.org/1999/xhtml=22>
<head>
<title></title>
</head>
<body>
<div name=3D=22messageBodySection=22 style=3D=22font-size: 14px; font-fam=
ily: -apple-system, BlinkMacSystem=46ont, sans-serif;=22>yes/support</div=
>
<div name=3D=22messageSignatureSection=22><br />
<div class=3D=22match=46ont=22>Cheers,
<div style=3D=22font-size: 14px; font-family: -apple-system, BlinkMacSyst=
em=46ont, sans-serif;=22>Jeff</div>
</div>
</div>
<div name=3D=22messageReplySection=22 style=3D=22font-size: 14px; font-fa=
mily: -apple-system, BlinkMacSystem=46ont, sans-serif;=22>On Mar 13, 2019=
, 11:49 AM -0700, bruno.decraene=40orange.com, wrote:<br />
<blockquote type=3D=22cite=22 style=3D=22margin: 5px 5px; padding-left: 1=
0px; border-left: thin solid =231abc9c;=22>
<div class=3D=22WordSection1=22>
<pre><span lang=3D=22EN-US=22 style=3D=22mso-ansi-language:EN-US=22 xml:l=
ang=3D=22EN-US=22>Hi SPRING WG,</span></pre>
<pre><span lang=3D=22EN-US=22 style=3D=22mso-ansi-language:EN-US=22 xml:l=
ang=3D=22EN-US=22> </span></pre>
<pre><span lang=3D=22EN-US=22 style=3D=22mso-ansi-language:EN-US=22 xml:l=
ang=3D=22EN-US=22>This email initiates a three week call for working grou=
p adoption for draft-filsfils-spring-srv6-network-programming. (Three wee=
ks to account for the IET=46 week)</span></pre>
<pre><span lang=3D=22EN-US=22 style=3D=22mso-ansi-language:EN-US=22 xml:l=
ang=3D=22EN-US=22> </span></pre>
<pre><span lang=3D=22EN-US=22 style=3D=22mso-ansi-language:EN-US=22 xml:l=
ang=3D=22EN-US=22>Please indicate your support, comments, or objection, f=
or adopting this draft as a working group item by April, 3<sup>rd</sup>, =
2019 (aka 2019-04-03)</span></pre>
<pre><span lang=3D=22EN-US=22 style=3D=22mso-ansi-language:EN-US=22 xml:l=
ang=3D=22EN-US=22>We are particularly interested in hearing from working =
group members that are not co-authors of this draft.</span></pre>
<pre><span lang=3D=22EN-US=22 style=3D=22mso-ansi-language:EN-US=22 xml:l=
ang=3D=22EN-US=22> </span></pre>
<pre><span lang=3D=22EN-US=22 style=3D=22mso-ansi-language:EN-US=22 xml:l=
ang=3D=22EN-US=22>We are also looking for volunteers who would be ready t=
o perform a technical review of this work at some later stage, such as be=
fore or during WG the last call.</span></pre>
<pre><span lang=3D=22EN-US=22 style=3D=22mso-ansi-language:EN-US=22 xml:l=
ang=3D=22EN-US=22> </span></pre>
<pre><span lang=3D=22EN-US=22 style=3D=22mso-ansi-language:EN-US=22 xml:l=
ang=3D=22EN-US=22>In parallel to this adoption call, I will send an IPR c=
all for this document. We will need all authors and contributors to confi=
rm their IPR position on this document.</span></pre>
<pre><span lang=3D=22EN-US=22 style=3D=22mso-ansi-language:EN-US=22 xml:l=
ang=3D=22EN-US=22>There is currently 1 IPR filled (2)</span></pre>
<pre><span lang=3D=22EN-US=22 style=3D=22mso-ansi-language:EN-US=22 xml:l=
ang=3D=22EN-US=22> </span></pre>
<pre style=3D=22margin-left:42.0pt;text-indent:-24.0pt;mso-list:l1 level1=
 lfo2=22><span lang=3D=22EN-US=22 style=3D=22mso-ansi-language:EN-US=22 x=
ml:lang=3D=22EN-US=22><a href=3D=22https://tools.ietf.org/html/draft-fils=
fils-spring-srv6-network-programming-07=22>https://tools.ietf.org/html/dr=
aft-filsfils-spring-srv6-network-programming-07</a></span></pre>
<pre style=3D=22margin-left:42.0pt;text-indent:-24.0pt;mso-list:l1 level1=
 lfo2=22><span lang=3D=22EN-US=22 style=3D=22mso-ansi-language:EN-US=22 x=
ml:lang=3D=22EN-US=22><a href=3D=22https://datatracker.ietf.org/ipr/searc=
h/=3Fid=3Ddraft-filsfils-spring-srv6-network-programming&amp;submit=3Ddra=
ft=22>https://datatracker.ietf.org/ipr/search/=3Fid=3Ddraft-filsfils-spri=
ng-srv6-network-programming&amp;submit=3Ddraft</a></span></pre>
<pre><span lang=3D=22EN-US=22 style=3D=22mso-ansi-language:EN-US=22 xml:l=
ang=3D=22EN-US=22> </span></pre>
<pre><span lang=3D=22EN-US=22 style=3D=22mso-ansi-language:EN-US=22 xml:l=
ang=3D=22EN-US=22> </span></pre>
<pre><span class=3D=22SpellE=22>Thank</span> <span class=3D=22SpellE=22>y=
ou</span>,</pre>
<pre>--Bruno &amp; Rob.</pre>
<p class=3D=22MsoNormal=22 style=3D=22tab-stops:179.25pt=22>&=23160;</p>
</div>
<pre>=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F

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.
</pre>
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
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From: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
CC: "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
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Subject: Re: [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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Support.

   Les

From: spring <spring-bounces@ietf.org> On Behalf Of bruno.decraene@orange.c=
om
Sent: Wednesday, March 13, 2019 11:50 AM
To: SPRING WG <spring@ietf.org>
Cc: draft-filsfils-spring-srv6-network-programming@ietf.org
Subject: [spring] Working Group Adoption Call for draft-filsfils-spring-srv=
6-network-programming


Hi SPRING WG,



This email initiates a three week call for working group adoption for draft=
-filsfils-spring-srv6-network-programming. (Three weeks to account for the =
IETF week)



Please indicate your support, comments, or objection, for adopting this dra=
ft as a working group item by April, 3rd, 2019 (aka 2019-04-03)

We are particularly interested in hearing from working group members that a=
re not co-authors of this draft.



We are also looking for volunteers who would be ready to perform a technica=
l review of this work at some later stage, such as before or during WG the =
last call.



In parallel to this adoption call, I will send an IPR call for this documen=
t. We will need all authors and contributors to confirm their IPR position =
on this document.

There is currently 1 IPR filled (2)



(1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-program=
ming-07

(2)  https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-sr=
v6-network-programming&submit=3Ddraft





Thank you,

--Bruno & Rob.


___________________________________________________________________________=
______________________________________________



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<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Support.<o:p></o:p></s=
pan></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">&nbsp;&nbsp; Les<o:p><=
/o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in =
4.0pt">
<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> Wednesday, March 13, 2019 11:50 AM<br>
<b>To:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Cc:</b> draft-filsfils-spring-srv6-network-programming@ietf.org<br>
<b>Subject:</b> [spring] Working Group Adoption Call for draft-filsfils-spr=
ing-srv6-network-programming<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 email initiates a three week call for working group adoption for =
draft-filsfils-spring-srv6-network-programming. (Three weeks to account for=
 the IETF week)<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>Please indicate your support, comments, or objection, for adopting thi=
s draft as a working group item by April, 3<sup>rd</sup>, 2019 (aka 2019-04=
-03)<o:p></o:p></pre>
<pre>We are particularly interested in hearing from working group members t=
hat are not co-authors of this draft.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>We are also looking for volunteers who would be ready to perform a tec=
hnical review of this work at some later stage, such as before or during WG=
 the last call.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>In parallel to this adoption call, I will send an IPR call for this do=
cument. We will need all authors and contributors to confirm their IPR posi=
tion on this document.<o:p></o:p></pre>
<pre>There is currently 1 IPR filled (2)<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre style=3D"margin-left:42.0pt;text-indent:-24.0pt;mso-list:l0 level1 lfo=
2"><![if !supportLists]><span style=3D"mso-list:Ignore">(1)<span style=3D"f=
ont:7.0pt &quot;Times New Roman&quot;">&nbsp; </span></span><![endif]><a hr=
ef=3D"https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-progra=
mming-07">https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-pr=
ogramming-07</a><o:p></o:p></pre>
<pre style=3D"margin-left:42.0pt;text-indent:-24.0pt;mso-list:l0 level1 lfo=
2"><![if !supportLists]><span style=3D"mso-list:Ignore">(2)<span style=3D"f=
ont:7.0pt &quot;Times New Roman&quot;">&nbsp; </span></span><![endif]><a hr=
ef=3D"https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-s=
rv6-network-programming&amp;submit=3Ddraft">https://datatracker.ietf.org/ip=
r/search/?id=3Ddraft-filsfils-spring-srv6-network-programming&amp;submit=3D=
draft</a><o:p></o:p></pre>
<pre><o:p>&nbsp;</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 &amp; Rob.<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: "Zafar Ali (zali)" <zali@cisco.com>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
CC: "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>, "Zafar Ali (zali)" <zali@cisco.com>
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From: Ahmed Bashandy <abashandy.ietf@gmail.com>
Date: Wed, 13 Mar 2019 23:34:35 +0200
Message-ID: <CAAgvS4pjRX28Pmj5MhuB=MLXhuBC4gBd+wMq5R34Zq9-eOTT9w@mail.gmail.com>
To: Bruno Decraene <bruno.decraene@orange.com>
Cc: SPRING WG List <spring@ietf.org>,  "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
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Subject: Re: [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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Content-Type: text/plain; charset="UTF-8"

Support the WG adoption

Ahmed

On Wed, Mar 13, 2019, 8:49 PM <bruno.decraene@orange.com> wrote:

> Hi SPRING WG,
>
>
>
> This email initiates a three week call for working group adoption for draft-filsfils-spring-srv6-network-programming. (Three weeks to account for the IETF week)
>
>
>
> Please indicate your support, comments, or objection, for adopting this draft as a working group item by April, 3rd, 2019 (aka 2019-04-03)
>
> We are particularly interested in hearing from working group members that are not co-authors of this draft.
>
>
>
> We are also looking for volunteers who would be ready to perform a technical review of this work at some later stage, such as before or during WG the last call.
>
>
>
> In parallel to this adoption call, I will send an IPR call for this document. We will need all authors and contributors to confirm their IPR position on this document.
>
> There is currently 1 IPR filled (2)
>
>
>
> (1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-07
>
> (2)  https://datatracker.ietf.org/ipr/search/?id=draft-filsfils-spring-srv6-network-programming&submit=draft
>
>
>
>
>
> Thank you,
>
> --Bruno & Rob.
>
>
>
> _________________________________________________________________________________________________________________________
>
> 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.
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

--00000000000028c4b305840093d1
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<div dir=3D"auto">Support the WG adoption=C2=A0<div dir=3D"auto"><br></div>=
<div dir=3D"auto">Ahmed=C2=A0</div></div><br><div class=3D"gmail_quote"><di=
v dir=3D"ltr">On Wed, Mar 13, 2019, 8:49 PM  &lt;<a href=3D"mailto:bruno.de=
craene@orange.com">bruno.decraene@orange.com</a>&gt; wrote:<br></div><block=
quote 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 class=3D"m_-7841105516951908424WordSection1">
<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 email initiates a three week call for workin=
g group adoption for draft-filsfils-spring-srv6-network-programming. (Three=
 weeks to account for the IETF week)<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 indicate your support, comments, or object=
ion, for adopting this draft as a working group item by April, 3<sup>rd</su=
p>, 2019 (aka 2019-04-03)<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US">We are particularly interested in hearing from wo=
rking group members that are not co-authors of this draft.<u></u><u></u></s=
pan></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">We are also looking for volunteers who would be r=
eady to perform a technical review of this work at some later stage, such a=
s before or during WG the last call.<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 to this adoption call, I will send an=
 IPR call for this document. We will need all authors and contributors to c=
onfirm their IPR position on this document.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US">There is currently 1 IPR filled (2)<u></u><u></u>=
</span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre style=3D"margin-left:42.0pt"><u></u><span lang=3D"EN-US"><span>(1)<spa=
n style=3D"font:7.0pt &quot;Times New Roman&quot;">=C2=A0 </span></span></s=
pan><u></u><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draf=
t-filsfils-spring-srv6-network-programming-07" target=3D"_blank" rel=3D"nor=
eferrer">https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-pro=
gramming-07</a><u></u><u></u></span></pre>
<pre style=3D"margin-left:42.0pt"><u></u><span lang=3D"EN-US"><span>(2)<spa=
n style=3D"font:7.0pt &quot;Times New Roman&quot;">=C2=A0 </span></span></s=
pan><u></u><span lang=3D"EN-US"><a href=3D"https://datatracker.ietf.org/ipr=
/search/?id=3Ddraft-filsfils-spring-srv6-network-programming&amp;submit=3Dd=
raft" target=3D"_blank" rel=3D"noreferrer">https://datatracker.ietf.org/ipr=
/search/?id=3Ddraft-filsfils-spring-srv6-network-programming&amp;submit=3Dd=
raft</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"><u></u>=C2=A0<u></u></span></pre>
<pre><span class=3D"m_-7841105516951908424SpellE">Thank</span> <span class=
=3D"m_-7841105516951908424SpellE">you</span>,<u></u><u></u></pre>
<pre>--Bruno &amp; Rob.<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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From: Gaurav Dawra <gdawra.ietf@gmail.com>
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Cc: IETF Secretariat <ietf-secretariat-reply@ietf.org>, "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>,  "spring-chairs@ietf.org" <spring-chairs@ietf.org>, "spring@ietf.org" <spring@ietf.org>
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To: "Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com>
Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/6fCs9p2thsdyKNuW_pPpcpGn0OQ>
Subject: Re: [spring] The SPRING WG has placed draft-filsfils-spring-srv6-network-programming in state "Call For Adoption By WG Issued"
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Support.

Gaurav

Sent from my iPhone

> On Mar 13, 2019, at 1:23 PM, Nagendra Kumar Nainar (naikumar) <naikumar@ci=
sco.com> wrote:
>=20
> Support.
>=20
> Regards,
> Nagendra
>=20
> =EF=BB=BFOn 3/13/19, 3:31 PM, "spring on behalf of IETF Secretariat" <spri=
ng-bounces@ietf.org on behalf of ietf-secretariat-reply@ietf.org> wrote:
>=20
>=20
>    The SPRING WG has placed draft-filsfils-spring-srv6-network-programming=
 in
>    state Call For Adoption By WG Issued (entered by Bruno Decraene)
>=20
>    The document is available at
>    https://datatracker.ietf.org/doc/draft-filsfils-spring-srv6-network-pro=
gramming/
>=20
>    Comment:
>    IPR call:
>    https://mailarchive.ietf.org/arch/msg/spring/ewznLZ_nIkkLyeOL76QU7ENr6Fs=

>=20
>    Adoption call:
>    https://mailarchive.ietf.org/arch/msg/spring/Fr8RtiWt-tLjHtWnhPkhCAPmes=
M
>=20
>    _______________________________________________
>    spring mailing list
>    spring@ietf.org
>    https://www.ietf.org/mailman/listinfo/spring
>=20
>=20
> _______________________________________________
> spring mailing list
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From: Gaurav Dawra <gdawra.ietf@gmail.com>
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Date: Wed, 13 Mar 2019 15:27:34 -0700
Cc: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>, "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
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To: Paul Mattes <pamattes=40microsoft.com@dmarc.ietf.org>
Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/fegOsF0SDi_JuF2CfVQHWJ_y4w0>
Subject: Re: [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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Support

Gaurav

Sent from my iPhone

> On Mar 13, 2019, at 1:35 PM, Paul Mattes <pamattes=3D40microsoft.com@dmarc=
.ietf.org> wrote:
>=20
> Support.
> =20
>         pdm
> =20
> From: spring <spring-bounces@ietf.org> On Behalf Of bruno.decraene@orange.=
com
> Sent: Wednesday, March 13, 2019 11:50 AM
> To: SPRING WG <spring@ietf.org>
> Cc: draft-filsfils-spring-srv6-network-programming@ietf.org
> Subject: [spring] Working Group Adoption Call for draft-filsfils-spring-sr=
v6-network-programming
> =20
> Hi SPRING WG,
> =20
> This email initiates a three week call for working group adoption for draf=
t-filsfils-spring-srv6-network-programming. (Three weeks to account for the I=
ETF week)
> =20
> Please indicate your support, comments, or objection, for adopting this dr=
aft as a working group item by April, 3rd, 2019 (aka 2019-04-03)
> We are particularly interested in hearing from working group members that a=
re not co-authors of this draft.
> =20
> We are also looking for volunteers who would be ready to perform a technic=
al review of this work at some later stage, such as before or during WG the l=
ast call.
> =20
> In parallel to this adoption call, I will send an IPR call for this docume=
nt. We will need all authors and contributors to confirm their IPR position o=
n this document.
> There is currently 1 IPR filled (2)
> =20
> (1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-progra=
mming-07
> (2)  https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-s=
rv6-network-programming&submit=3Ddraft
> =20
> =20
> Thank you,
> --Bruno & Rob.
> =20
> __________________________________________________________________________=
_______________________________________________
> =20
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<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">Support<div><br></div><div>Gaurav<br><br><div id="AppleMailSignature" dir="ltr">Sent from my iPhone</div><div dir="ltr"><br>On Mar 13, 2019, at 1:35 PM, Paul Mattes &lt;<a href="mailto:pamattes=40microsoft.com@dmarc.ietf.org">pamattes=40microsoft.com@dmarc.ietf.org</a>&gt; wrote:<br><br></div><blockquote type="cite"><div dir="ltr">

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<div class="WordSection1">
<p class="MsoNormal">Support.<o:p></o:p></p>
<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<p class="MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <i>pdm</i><o:p></o:p></p>
</div>
<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> spring &lt;<a href="mailto:spring-bounces@ietf.org">spring-bounces@ietf.org</a>&gt; <b>On Behalf Of
</b><a href="mailto:bruno.decraene@orange.com">bruno.decraene@orange.com</a><br>
<b>Sent:</b> Wednesday, March 13, 2019 11:50 AM<br>
<b>To:</b> SPRING WG &lt;<a href="mailto:spring@ietf.org">spring@ietf.org</a>&gt;<br>
<b>Cc:</b> <a href="mailto:draft-filsfils-spring-srv6-network-programming@ietf.org">draft-filsfils-spring-srv6-network-programming@ietf.org</a><br>
<b>Subject:</b> [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming<o:p></o:p></p>
</div>
</div>
<p class="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 email initiates a three week call for working group adoption for draft-filsfils-spring-srv6-network-programming. (Three weeks to account for the IETF week)<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>Please indicate your support, comments, or objection, for adopting this draft as a working group item by April, 3<sup>rd</sup>, 2019 (aka 2019-04-03)<o:p></o:p></pre>
<pre>We are particularly interested in hearing from working group members that are not co-authors of this draft.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>We are also looking for volunteers who would be ready to perform a technical review of this work at some later stage, such as before or during WG the last call.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>In parallel to this adoption call, I will send an IPR call for this document. We will need all authors and contributors to confirm their IPR position on this document.<o:p></o:p></pre>
<pre>There is currently 1 IPR filled (2)<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre style="margin-left:42.0pt;text-indent:-24.0pt;mso-list:l0 level1 lfo2"><!--[if !supportLists]--><span style="mso-list:Ignore">(1)<span style="font:7.0pt &quot;Times New Roman&quot;">&nbsp; </span></span><!--[endif]--><a href="https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftools.ietf.org%2Fhtml%2Fdraft-filsfils-spring-srv6-network-programming-07&amp;data=02%7C01%7Cpamattes%40microsoft.com%7C8585f7d3f8dc4b7ab09208d6a7e4ab35%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636880997907942811&amp;sdata=dBm%2BHfifgpWQ%2FK0s5Ps4CdTdRnCQCguAqiaXvKaB%2Fpw%3D&amp;reserved=0">https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-07</a><o:p></o:p></pre>
<pre style="margin-left:42.0pt;text-indent:-24.0pt;mso-list:l0 level1 lfo2"><!--[if !supportLists]--><span style="mso-list:Ignore">(2)<span style="font:7.0pt &quot;Times New Roman&quot;">&nbsp; </span></span><!--[endif]--><a href="https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdatatracker.ietf.org%2Fipr%2Fsearch%2F%3Fid%3Ddraft-filsfils-spring-srv6-network-programming%26submit%3Ddraft&amp;data=02%7C01%7Cpamattes%40microsoft..com%7C8585f7d3f8dc4b7ab09208d6a7e4ab35%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636880997907952819&amp;sdata=H22IV4L3aSkQXXGSLrNvtHX2csTzMK2d9LyZf2YtMyM%3D&amp;reserved=0">https://datatracker.ietf.org/ipr/search/?id=draft-filsfils-spring-srv6-network-programming&amp;submit=draft</a><o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre><span lang="FR">Thank you,<o:p></o:p></span></pre>
<pre><span lang="FR">--Bruno &amp; Rob.<o:p></o:p></span></pre>
<p class="MsoNormal"><span lang="FR"><o:p>&nbsp;</o:p></span></p>
<pre><span lang="FR">_________________________________________________________________________________________________________________________<o:p></o:p></span></pre>
<pre><span lang="FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang="FR">Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc<o:p></o:p></span></pre>
<pre><span lang="FR">pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler<o:p></o:p></span></pre>
<pre><span lang="FR">a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration,<o:p></o:p></span></pre>
<pre><span lang="FR">Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci.<o:p></o:p></span></pre>
<pre><span lang="FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang="FR">This message and its attachments may contain confidential or privileged information that may be protected by law;<o:p></o:p></span></pre>
<pre><span lang="FR">they should not be distributed, used or copied without authorisation.<o:p></o:p></span></pre>
<pre><span lang="FR">If you have received this email in error, please notify the sender and delete this message and its attachments.<o:p></o:p></span></pre>
<pre><span lang="FR">As emails may be altered, Orange is not liable for messages that have been modified, changed or falsified.<o:p></o:p></span></pre>
<pre><span lang="FR">Thank you.<o:p></o:p></span></pre>
</div>


</div></blockquote><blockquote type="cite"><div dir="ltr"><span>_______________________________________________</span><br><span>spring mailing list</span><br><span><a href="mailto:spring@ietf.org">spring@ietf.org</a></span><br><span><a href="https://www.ietf.org/mailman/listinfo/spring">https://www.ietf.org/mailman/listinfo/spring</a></span><br></div></blockquote></div></body></html>
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From: "Zafar Ali (zali)" <zali@cisco.com>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
CC: "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>, "Zafar Ali (zali)" <zali@cisco.com>
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Subject: Re: [spring] IPR Poll for draft-filsfils-spring-srv6-network-programming
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Date: Wed, 13 Mar 2019 19:46:22 -0400 (EDT)
From: "john leddy.net" <john@leddy.net>
Reply-To: "john leddy.net" <john@leddy.net>
To: bruno.decraene@orange.com, SPRING WG <spring@ietf.org>
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Subject: Re: [spring] IPR Poll for draft-filsfils-spring-srv6-network-programming
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I am not aware of IPR that applies to draft-filsfils-spring-srv6-network-programming


John Leddy

> On March 13, 2019 at 2:50 PM bruno.decraene@orange.com wrote:
> 
> 
>     Hi authors, SPRING WG,
>           
> 
>           
>             
>           
> 
>     In parallel to the call for adoption for draft-filsfils-spring-srv6-network-programming (1), we would like to poll for IPR.
>           
> 
>           
>             
>           
> 
>     If you are aware of IPR that applies to draft-filsfils-spring-srv6-network-programming 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.
>           
> 
>     If you are not an author or contributor, please explicitly respond only if you are aware of IPR that has not yet been disclosed.
>           
> 
>           
>             
>           
> 
>     This document will not advance into the working group until IPR confirmations have been received from all authors and contributors.
>           
> 
>           
>             
>           
> 
>     Thank you,
>           
> 
>           
>             
>           
> 
>       (1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-07
>             
> 
>           
>             
>           
> 
>           
>             
>           
> 
>     --Bruno & Rob.
>          
> 
>      
> 
>     _________________________________________________________________________________________________________________________
> 
>     Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc
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> 


 

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</head><body><p>I am not aware of IPR that applies to draft-filsfils-spring-srv6-network-programming</p><p><br></p><p>John Leddy</p><blockquote type="cite">On March 13, 2019 at 2:50 PM bruno.decraene@orange.com wrote: <br> <br><div class="ox-f6b331d4b2-ox-53389c1fb9-ox-880794b332-WordSection1"><pre>Hi authors, SPRING WG,
      </pre><pre>      
       &#160;
      </pre><pre>In parallel to the call for adoption for draft-filsfils-spring-srv6-network-programming (1), we would like to poll for IPR.
      </pre><pre>      
       &#160;
      </pre><pre>If you are aware of IPR that applies to draft-filsfils-spring-srv6-network-programming please respond to this email.
      </pre><pre>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).
      </pre><pre>      
       &#160;
      </pre><pre>If you are an *author or contributor* please respond to this email regardless of whether or not you&#39;re aware of any IPR.
      </pre><pre>If you are not an author or contributor, please explicitly respond only if you are aware of IPR that has not yet been disclosed.
      </pre><pre>      
       &#160;
      </pre><pre>This document will not advance into the working group until IPR confirmations have been received from all authors and contributors.
      </pre><pre>      
       &#160;
      </pre><pre>Thank you,
      </pre><pre>      
       &#160;
      </pre><pre style="margin-left: 24.0pt; text-indent: -24.0pt;">(1)<span style="font: 7.0pt 'Times New Roman';">&#160; </span><a href="https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-07">https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-07</a>
      </pre><pre>      
       &#160;
      </pre><pre>      
       &#160;
      </pre><pre>--Bruno &#38; Rob.
     </pre><p class="ox-f6b331d4b2-ox-53389c1fb9-ox-880794b332-MsoNormal">&#160;</p></div><pre>_________________________________________________________________________________________________________________________

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</pre></blockquote><p class="ox-f6b331d4b2-ox-53389c1fb9-default-style"><br>&#160;</p><blockquote type="cite">_______________________________________________ <br>spring mailing list <br>spring@ietf.org <br>https://www.ietf.org/mailman/listinfo/spring <br></blockquote><p class="ox-f6b331d4b2-ox-53389c1fb9-default-style"><br>&#160;</p></body></html>
 
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Support !

Thanks,
Shunwan


From: spring [mailto:spring-bounces@ietf.org] On Behalf Of bruno.decraene@o=
range.com
Sent: Thursday, March 14, 2019 2:50 AM
To: SPRING WG <spring@ietf.org>
Cc: draft-filsfils-spring-srv6-network-programming@ietf.org
Subject: [spring] Working Group Adoption Call for draft-filsfils-spring-srv=
6-network-programming


Hi SPRING WG,



This email initiates a three week call for working group adoption for draft=
-filsfils-spring-srv6-network-programming. (Three weeks to account for the =
IETF week)



Please indicate your support, comments, or objection, for adopting this dra=
ft as a working group item by April, 3rd, 2019 (aka 2019-04-03)

We are particularly interested in hearing from working group members that a=
re not co-authors of this draft.



We are also looking for volunteers who would be ready to perform a technica=
l review of this work at some later stage, such as before or during WG the =
last call.



In parallel to this adoption call, I will send an IPR call for this documen=
t. We will need all authors and contributors to confirm their IPR position =
on this document.

There is currently 1 IPR filled (2)



(1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-program=
ming-07

(2)  https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-sr=
v6-network-programming&submit=3Ddraft





Thank you,

--Bruno & Rob.


___________________________________________________________________________=
______________________________________________



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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Arial&quot;,sans-se=
rif">Support !&nbsp;</span><span style=3D"font-size:12.0pt;font-family:&quo=
t;Arial&quot;,sans-serif"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Arial&quot;,sans-se=
rif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Arial&quot;,sans-se=
rif">Thanks,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Arial&quot;,sans-se=
rif">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>
<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> Thursday, March 14, 2019 2:50 AM<br>
<b>To:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Cc:</b> draft-filsfils-spring-srv6-network-programming@ietf.org<br>
<b>Subject:</b> [spring] Working Group Adoption Call for draft-filsfils-spr=
ing-srv6-network-programming<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 email initiates a three week call for working group adoption for =
draft-filsfils-spring-srv6-network-programming. (Three weeks to account for=
 the IETF week)<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>Please indicate your support, comments, or objection, for adopting thi=
s draft as a working group item by April, 3<sup>rd</sup>, 2019 (aka 2019-04=
-03)<o:p></o:p></pre>
<pre>We are particularly interested in hearing from working group members t=
hat are not co-authors of this draft.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>We are also looking for volunteers who would be ready to perform a tec=
hnical review of this work at some later stage, such as before or during WG=
 the last call.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>In parallel to this adoption call, I will send an IPR call for this do=
cument. We will need all authors and contributors to confirm their IPR posi=
tion on this document.<o:p></o:p></pre>
<pre>There is currently 1 IPR filled (2)<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre style=3D"margin-left:42.0pt;text-indent:-24.0pt;mso-list:l0 level1 lfo=
2"><![if !supportLists]><span style=3D"mso-list:Ignore">(1)<span style=3D"f=
ont:7.0pt &quot;Times New Roman&quot;">&nbsp; </span></span><![endif]><a hr=
ef=3D"https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-progra=
mming-07">https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-pr=
ogramming-07</a><o:p></o:p></pre>
<pre style=3D"margin-left:42.0pt;text-indent:-24.0pt;mso-list:l0 level1 lfo=
2"><![if !supportLists]><span style=3D"mso-list:Ignore">(2)<span style=3D"f=
ont:7.0pt &quot;Times New Roman&quot;">&nbsp; </span></span><![endif]><a hr=
ef=3D"https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-s=
rv6-network-programming&amp;submit=3Ddraft">https://datatracker.ietf.org/ip=
r/search/?id=3Ddraft-filsfils-spring-srv6-network-programming&amp;submit=3D=
draft</a><o:p></o:p></pre>
<pre><o:p>&nbsp;</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 &amp; Rob.<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: Xiejingrong <xiejingrong@huawei.com>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
CC: "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
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I Support the adoption but I also have a comment.
The Next Header value 59 used in SRv6-L2VPN scenario should be a new value =
applied from IANA officially.
Please find in the WG mail list my comment yesterday.

Thanks
Jingrong
From: spring [mailto:spring-bounces@ietf.org] On Behalf Of bruno.decraene@o=
range.com
Sent: Thursday, March 14, 2019 2:50 AM
To: SPRING WG <spring@ietf.org>
Cc: draft-filsfils-spring-srv6-network-programming@ietf.org
Subject: [spring] Working Group Adoption Call for draft-filsfils-spring-srv=
6-network-programming


Hi SPRING WG,



This email initiates a three week call for working group adoption for draft=
-filsfils-spring-srv6-network-programming. (Three weeks to account for the =
IETF week)



Please indicate your support, comments, or objection, for adopting this dra=
ft as a working group item by April, 3rd, 2019 (aka 2019-04-03)

We are particularly interested in hearing from working group members that a=
re not co-authors of this draft.



We are also looking for volunteers who would be ready to perform a technica=
l review of this work at some later stage, such as before or during WG the =
last call.



In parallel to this adoption call, I will send an IPR call for this documen=
t. We will need all authors and contributors to confirm their IPR position =
on this document.

There is currently 1 IPR filled (2)



(1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-program=
ming-07

(2)  https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-sr=
v6-network-programming&submit=3Ddraft





Thank you,

--Bruno & Rob.


___________________________________________________________________________=
______________________________________________



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Orange decline toute responsabilite si ce message a ete altere, deforme ou =
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they should not be distributed, used or copied without authorisation.

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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">I Support the adoption but I also have=
 a comment.
<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">The Next Header value 59 used in SRv6-=
L2VPN scenario should be a new value applied from IANA officially.<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">Please find in the WG mail list my com=
ment yesterday.<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">Thanks<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">Jingrong<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> Thursday, March 14, 2019 2:50 AM<br>
<b>To:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Cc:</b> draft-filsfils-spring-srv6-network-programming@ietf.org<br>
<b>Subject:</b> [spring] Working Group Adoption Call for draft-filsfils-spr=
ing-srv6-network-programming<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 email initiates a three week call for workin=
g group adoption for draft-filsfils-spring-srv6-network-programming. (Three=
 weeks to account for the IETF week)<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">Please indicate your support, comments, or object=
ion, for adopting this draft as a working group item by April, 3<sup>rd</su=
p>, 2019 (aka 2019-04-03)<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">We are particularly interested in hearing from wo=
rking group members that are not co-authors of this 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">We are also looking for volunteers who would be r=
eady to perform a technical review of this work at some later stage, such a=
s before or during WG the last call.<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 to this adoption call, I will send an=
 IPR call for this document. We will need all authors and contributors to c=
onfirm their IPR position on this document.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">There is currently 1 IPR filled (2)<o:p></o:p></s=
pan></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:42.0pt;text-indent:-24.0pt;mso-list:l0 level1 lfo=
2"><![if !supportLists]><span lang=3D"EN-US"><span style=3D"mso-list:Ignore=
">(1)<span style=3D"font:7.0pt &quot;Times New Roman&quot;">&nbsp; </span><=
/span></span><![endif]><span lang=3D"EN-US"><a href=3D"https://tools.ietf.o=
rg/html/draft-filsfils-spring-srv6-network-programming-07">https://tools.ie=
tf.org/html/draft-filsfils-spring-srv6-network-programming-07</a><o:p></o:p=
></span></pre>
<pre style=3D"margin-left:42.0pt;text-indent:-24.0pt;mso-list:l0 level1 lfo=
2"><![if !supportLists]><span lang=3D"EN-US"><span style=3D"mso-list:Ignore=
">(2)<span style=3D"font:7.0pt &quot;Times New Roman&quot;">&nbsp; </span><=
/span></span><![endif]><span lang=3D"EN-US"><a href=3D"https://datatracker.=
ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-srv6-network-programming&am=
p;submit=3Ddraft">https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsf=
ils-spring-srv6-network-programming&amp;submit=3Ddraft</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"><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 &amp; Rob.<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=
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n></pre>
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From: Huzhibo <huzhibo@huawei.com>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
CC: "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
Thread-Topic: Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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Support!

Ths
Zhibo Hu

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of bruno.decraene@o=
range.com
Sent: Thursday, March 14, 2019 2:50 AM
To: SPRING WG <spring@ietf.org>
Cc: draft-filsfils-spring-srv6-network-programming@ietf.org
Subject: [spring] Working Group Adoption Call for draft-filsfils-spring-srv=
6-network-programming


Hi SPRING WG,



This email initiates a three week call for working group adoption for draft=
-filsfils-spring-srv6-network-programming. (Three weeks to account for the =
IETF week)



Please indicate your support, comments, or objection, for adopting this dra=
ft as a working group item by April, 3rd, 2019 (aka 2019-04-03)

We are particularly interested in hearing from working group members that a=
re not co-authors of this draft.



We are also looking for volunteers who would be ready to perform a technica=
l review of this work at some later stage, such as before or during WG the =
last call.



In parallel to this adoption call, I will send an IPR call for this documen=
t. We will need all authors and contributors to confirm their IPR position =
on this document.

There is currently 1 IPR filled (2)



(1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-program=
ming-07

(2)  https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-sr=
v6-network-programming&submit=3Ddraft





Thank you,

--Bruno & Rob.


___________________________________________________________________________=
______________________________________________



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 =
falsifie. Merci.



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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">Support!<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">Ths<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">Zhibo Hu<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> Thursday, March 14, 2019 2:50 AM<br>
<b>To:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Cc:</b> draft-filsfils-spring-srv6-network-programming@ietf.org<br>
<b>Subject:</b> [spring] Working Group Adoption Call for draft-filsfils-spr=
ing-srv6-network-programming<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 email initiates a three week call for workin=
g group adoption for draft-filsfils-spring-srv6-network-programming. (Three=
 weeks to account for the IETF week)<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">Please indicate your support, comments, or object=
ion, for adopting this draft as a working group item by April, 3<sup>rd</su=
p>, 2019 (aka 2019-04-03)<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">We are particularly interested in hearing from wo=
rking group members that are not co-authors of this 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">We are also looking for volunteers who would be r=
eady to perform a technical review of this work at some later stage, such a=
s before or during WG the last call.<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 to this adoption call, I will send an=
 IPR call for this document. We will need all authors and contributors to c=
onfirm their IPR position on this document.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">There is currently 1 IPR filled (2)<o:p></o:p></s=
pan></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:42.0pt;text-indent:-24.0pt;mso-list:l0 level1 lfo=
2"><![if !supportLists]><span lang=3D"EN-US"><span style=3D"mso-list:Ignore=
">(1)<span style=3D"font:7.0pt &quot;Times New Roman&quot;">&nbsp; </span><=
/span></span><![endif]><span lang=3D"EN-US"><a href=3D"https://tools.ietf.o=
rg/html/draft-filsfils-spring-srv6-network-programming-07">https://tools.ie=
tf.org/html/draft-filsfils-spring-srv6-network-programming-07</a><o:p></o:p=
></span></pre>
<pre style=3D"margin-left:42.0pt;text-indent:-24.0pt;mso-list:l0 level1 lfo=
2"><![if !supportLists]><span lang=3D"EN-US"><span style=3D"mso-list:Ignore=
">(2)<span style=3D"font:7.0pt &quot;Times New Roman&quot;">&nbsp; </span><=
/span></span><![endif]><span lang=3D"EN-US"><a href=3D"https://datatracker.=
ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-srv6-network-programming&am=
p;submit=3Ddraft">https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsf=
ils-spring-srv6-network-programming&amp;submit=3Ddraft</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"><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 &amp; Rob.<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>
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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>
CC: "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
Thread-Topic: IPR Poll for draft-filsfils-spring-srv6-network-programming
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Date: Thu, 14 Mar 2019 01:58:38 +0000
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Subject: Re: [spring] IPR Poll for draft-filsfils-spring-srv6-network-programming
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Support the WG adoption.

Thanks,
Shuping

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of bruno.decraene@o=
range.com
Sent: Thursday, March 14, 2019 2:50 AM
To: SPRING WG <spring@ietf.org>
Cc: draft-filsfils-spring-srv6-network-programming@ietf.org
Subject: [spring] IPR Poll for draft-filsfils-spring-srv6-network-programmi=
ng


Hi authors, SPRING WG,



In parallel to the call for adoption for draft-filsfils-spring-srv6-network=
-programming (1), we would like to poll for IPR.



If you are aware of IPR that applies to draft-filsfils-spring-srv6-network-=
programming please respond to this email.

If you are aware of IPR, please indicate whether it has been disclosed in a=
ccordance 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.

If you are not an author or contributor, please explicitly respond only if =
you are aware of IPR that has not yet been disclosed.



This document will not advance into the working group until IPR confirmatio=
ns have been received from all authors and contributors.



Thank you,



(1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-program=
ming-07





--Bruno & Rob.


___________________________________________________________________________=
______________________________________________



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<p class=3D"MsoNormal"><span style=3D"color:#1F497D;mso-fareast-language:ZH=
-CN">Support the WG adoption.
<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>
<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">Shuping
<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>
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<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> Thursday, March 14, 2019 2:50 AM<br>
<b>To:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Cc:</b> draft-filsfils-spring-srv6-network-programming@ietf.org<br>
<b>Subject:</b> [spring] IPR Poll for draft-filsfils-spring-srv6-network-pr=
ogramming<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<pre>Hi authors, SPRING WG,<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>In parallel to the call for adoption for draft-filsfils-spring-srv6-ne=
twork-programming (1), we would like to poll for IPR.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>If you are aware of IPR that applies to draft-filsfils-spring-srv6-net=
work-programming please respond to this email.<o:p></o:p></pre>
<pre>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).<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>If you are an *author or contributor* please respond to this email reg=
ardless of whether or not you're aware of any IPR.<o:p></o:p></pre>
<pre>If you are not an author or contributor, please explicitly respond onl=
y if you are aware of IPR that has not yet been disclosed.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>This document will not advance into the working group until IPR confir=
mations have been received from all authors and contributors.<o:p></o:p></p=
re>
<pre><o:p>&nbsp;</o:p></pre>
<pre>Thank you,<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre style=3D"margin-left:24.0pt;text-indent:-24.0pt;mso-list:l0 level1 lfo=
2"><![if !supportLists]><span style=3D"mso-list:Ignore">(1)<span style=3D"f=
ont:7.0pt &quot;Times New Roman&quot;">&nbsp; </span></span><![endif]><a hr=
ef=3D"https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-progra=
mming-07">https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-pr=
ogramming-07</a><o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre><span lang=3D"FR">--Bruno &amp; Rob.<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=
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ut authorisation.<o:p></o:p></span></pre>
<pre><span lang=3D"FR">If you have received this email in error, please not=
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<pre><span lang=3D"FR">As emails may be altered, Orange is not liable for m=
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From: "Chengli (Cheng Li)" <chengli13@huawei.com>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
CC: "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
Thread-Topic: Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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Subject: Re: [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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Support.

The solution defined in this document has been implemented by several vendo=
rs and open source data plane,
and I think it is ready to be adopted for better help on implementation.

My comments regarding USD/PSP/USP have been addressed, hope to see the corr=
ect text in the next version.

Thanks,
Cheng

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of bruno.decraene@o=
range.com
Sent: Thursday, March 14, 2019 2:50 AM
To: SPRING WG <spring@ietf.org>
Cc: draft-filsfils-spring-srv6-network-programming@ietf.org
Subject: [spring] Working Group Adoption Call for draft-filsfils-spring-srv=
6-network-programming


Hi SPRING WG,



This email initiates a three week call for working group adoption for draft=
-filsfils-spring-srv6-network-programming. (Three weeks to account for the =
IETF week)



Please indicate your support, comments, or objection, for adopting this dra=
ft as a working group item by April, 3rd, 2019 (aka 2019-04-03)

We are particularly interested in hearing from working group members that a=
re not co-authors of this draft.



We are also looking for volunteers who would be ready to perform a technica=
l review of this work at some later stage, such as before or during WG the =
last call.



In parallel to this adoption call, I will send an IPR call for this documen=
t. We will need all authors and contributors to confirm their IPR position =
on this document.

There is currently 1 IPR filled (2)



(1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-program=
ming-07

(2)  https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-sr=
v6-network-programming&submit=3Ddraft





Thank you,

--Bruno & Rob.


___________________________________________________________________________=
______________________________________________



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

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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.

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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"color:#1F497D;mso-fareast-language:ZH=
-CN">Support.
<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>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D;mso-fareast-language:ZH=
-CN">The solution defined in this document has been implemented by several =
vendors and open source data plane,
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D;mso-fareast-language:ZH=
-CN">and I think it is ready to be adopted for better help on implementatio=
n.<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>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D;mso-fareast-language:ZH=
-CN">My comments regarding USD/PSP/USP have been addressed, hope to see the=
 correct text in the next version.<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>
<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">Cheng<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> Thursday, March 14, 2019 2:50 AM<br>
<b>To:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Cc:</b> draft-filsfils-spring-srv6-network-programming@ietf.org<br>
<b>Subject:</b> [spring] Working Group Adoption Call for draft-filsfils-spr=
ing-srv6-network-programming<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 email initiates a three week call for working group adoption for =
draft-filsfils-spring-srv6-network-programming. (Three weeks to account for=
 the IETF week)<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>Please indicate your support, comments, or objection, for adopting thi=
s draft as a working group item by April, 3<sup>rd</sup>, 2019 (aka 2019-04=
-03)<o:p></o:p></pre>
<pre>We are particularly interested in hearing from working group members t=
hat are not co-authors of this draft.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>We are also looking for volunteers who would be ready to perform a tec=
hnical review of this work at some later stage, such as before or during WG=
 the last call.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>In parallel to this adoption call, I will send an IPR call for this do=
cument. We will need all authors and contributors to confirm their IPR posi=
tion on this document.<o:p></o:p></pre>
<pre>There is currently 1 IPR filled (2)<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre style=3D"margin-left:42.0pt;text-indent:-24.0pt;mso-list:l0 level1 lfo=
2"><![if !supportLists]><span style=3D"mso-list:Ignore">(1)<span style=3D"f=
ont:7.0pt &quot;Times New Roman&quot;">&nbsp; </span></span><![endif]><a hr=
ef=3D"https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-progra=
mming-07">https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-pr=
ogramming-07</a><o:p></o:p></pre>
<pre style=3D"margin-left:42.0pt;text-indent:-24.0pt;mso-list:l0 level1 lfo=
2"><![if !supportLists]><span style=3D"mso-list:Ignore">(2)<span style=3D"f=
ont:7.0pt &quot;Times New Roman&quot;">&nbsp; </span></span><![endif]><a hr=
ef=3D"https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-s=
rv6-network-programming&amp;submit=3Ddraft">https://datatracker.ietf.org/ip=
r/search/?id=3Ddraft-filsfils-spring-srv6-network-programming&amp;submit=3D=
draft</a><o:p></o:p></pre>
<pre><o:p>&nbsp;</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 &amp; Rob.<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>
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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>
CC: "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
Thread-Topic: Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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Date: Thu, 14 Mar 2019 02:22:29 +0000
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Subject: Re: [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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Hi,

Yes/support.

This is the fundamental document of SRv6, I have read several versions of t=
his draft, it becomes more stable and mature. I think it's ready for WG ado=
ption.

Best regards,
Mach

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of bruno.decraene@o=
range.com
Sent: Thursday, March 14, 2019 2:50 AM
To: SPRING WG <spring@ietf.org>
Cc: draft-filsfils-spring-srv6-network-programming@ietf.org
Subject: [spring] Working Group Adoption Call for draft-filsfils-spring-srv=
6-network-programming


Hi SPRING WG,



This email initiates a three week call for working group adoption for draft=
-filsfils-spring-srv6-network-programming. (Three weeks to account for the =
IETF week)



Please indicate your support, comments, or objection, for adopting this dra=
ft as a working group item by April, 3rd, 2019 (aka 2019-04-03)

We are particularly interested in hearing from working group members that a=
re not co-authors of this draft.



We are also looking for volunteers who would be ready to perform a technica=
l review of this work at some later stage, such as before or during WG the =
last call.



In parallel to this adoption call, I will send an IPR call for this documen=
t. We will need all authors and contributors to confirm their IPR position =
on this document.

There is currently 1 IPR filled (2)



(1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-program=
ming-07

(2)  https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-sr=
v6-network-programming&submit=3Ddraft





Thank you,

--Bruno & Rob.


___________________________________________________________________________=
______________________________________________



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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><font size=3D"2" color=3D"#1f497d" face=3D"Calibri">=
<span style=3D"font-size:11.0pt;color:#1F497D;mso-fareast-language:ZH-CN">H=
i,<o:p></o:p></span></font></p>
<p class=3D"MsoNormal"><font size=3D"2" color=3D"#1f497d" face=3D"Calibri">=
<span style=3D"font-size:11.0pt;color:#1F497D;mso-fareast-language:ZH-CN"><=
o:p>&nbsp;</o:p></span></font></p>
<p class=3D"MsoNormal"><font size=3D"2" color=3D"#1f497d" face=3D"Calibri">=
<span style=3D"font-size:11.0pt;color:#1F497D;mso-fareast-language:ZH-CN">Y=
es/support.<o:p></o:p></span></font></p>
<p class=3D"MsoNormal"><font size=3D"2" color=3D"#1f497d" face=3D"Calibri">=
<span style=3D"font-size:11.0pt;color:#1F497D;mso-fareast-language:ZH-CN"><=
o:p>&nbsp;</o:p></span></font></p>
<p class=3D"MsoNormal"><font size=3D"2" color=3D"#1f497d" face=3D"Calibri">=
<span style=3D"font-size:11.0pt;color:#1F497D;mso-fareast-language:ZH-CN">T=
his is the fundamental document of SRv6, I have read several versions of th=
is draft, it becomes more stable and mature.
 I think it&#8217;s ready for WG adoption. <o:p></o:p></span></font></p>
<p class=3D"MsoNormal"><font size=3D"2" color=3D"#1f497d" face=3D"Calibri">=
<span style=3D"font-size:11.0pt;color:#1F497D;mso-fareast-language:ZH-CN"><=
o:p>&nbsp;</o:p></span></font></p>
<p class=3D"MsoNormal"><font size=3D"2" color=3D"#1f497d" face=3D"Calibri">=
<span style=3D"font-size:11.0pt;color:#1F497D;mso-fareast-language:ZH-CN">B=
est regards,<o:p></o:p></span></font></p>
<p class=3D"MsoNormal"><font size=3D"2" color=3D"#1f497d" face=3D"Calibri">=
<span style=3D"font-size:11.0pt;color:#1F497D;mso-fareast-language:ZH-CN">M=
ach
<o:p></o:p></span></font></p>
<p class=3D"MsoNormal"><font size=3D"2" color=3D"#1f497d" face=3D"Calibri">=
<span style=3D"font-size:11.0pt;color:#1F497D;mso-fareast-language:ZH-CN"><=
o:p>&nbsp;</o:p></span></font></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt">
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><font size=3D"2" face=3D"Calibri"><span style=3D"=
font-size:11.0pt;mso-fareast-language:ZH-CN;font-weight:bold">From:</span><=
/font></b><span style=3D"mso-fareast-language:ZH-CN"> spring [mailto:spring=
-bounces@ietf.org]
<b><span style=3D"font-weight:bold">On Behalf Of </span></b>bruno.decraene@=
orange.com<br>
<b><span style=3D"font-weight:bold">Sent:</span></b> Thursday, March 14, 20=
19 2:50 AM<br>
<b><span style=3D"font-weight:bold">To:</span></b> SPRING WG &lt;spring@iet=
f.org&gt;<br>
<b><span style=3D"font-weight:bold">Cc:</span></b> draft-filsfils-spring-sr=
v6-network-programming@ietf.org<br>
<b><span style=3D"font-weight:bold">Subject:</span></b> [spring] Working Gr=
oup Adoption Call for draft-filsfils-spring-srv6-network-programming<o:p></=
o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><font size=3D"2" face=3D"Calibri"><span style=3D"fon=
t-size:11.0pt"><o:p>&nbsp;</o:p></span></font></p>
<pre><font size=3D"2" face=3D"Courier New"><span style=3D"font-size:10.0pt"=
>Hi SPRING WG,<o:p></o:p></span></font></pre>
<pre><font size=3D"2" face=3D"Courier New"><span style=3D"font-size:10.0pt"=
><o:p>&nbsp;</o:p></span></font></pre>
<pre><font size=3D"2" face=3D"Courier New"><span style=3D"font-size:10.0pt"=
>This email initiates a three week call for working group adoption for draf=
t-filsfils-spring-srv6-network-programming. (Three weeks to account for the=
 IETF week)<o:p></o:p></span></font></pre>
<pre><font size=3D"2" face=3D"Courier New"><span style=3D"font-size:10.0pt"=
><o:p>&nbsp;</o:p></span></font></pre>
<pre><font size=3D"2" face=3D"Courier New"><span style=3D"font-size:10.0pt"=
>Please indicate your support, comments, or objection, for adopting this dr=
aft as a working group item by April, 3<sup>rd</sup>, 2019 (aka 2019-04-03)=
<o:p></o:p></span></font></pre>
<pre><font size=3D"2" face=3D"Courier New"><span style=3D"font-size:10.0pt"=
>We are particularly interested in hearing from working group members that =
are not co-authors of this draft.<o:p></o:p></span></font></pre>
<pre><font size=3D"2" face=3D"Courier New"><span style=3D"font-size:10.0pt"=
><o:p>&nbsp;</o:p></span></font></pre>
<pre><font size=3D"2" face=3D"Courier New"><span style=3D"font-size:10.0pt"=
>We are also looking for volunteers who would be ready to perform a technic=
al review of this work at some later stage, such as before or during WG the=
 last call.<o:p></o:p></span></font></pre>
<pre><font size=3D"2" face=3D"Courier New"><span style=3D"font-size:10.0pt"=
><o:p>&nbsp;</o:p></span></font></pre>
<pre><font size=3D"2" face=3D"Courier New"><span style=3D"font-size:10.0pt"=
>In parallel to this adoption call, I will send an IPR call for this docume=
nt. We will need all authors and contributors to confirm their IPR position=
 on this document.<o:p></o:p></span></font></pre>
<pre><font size=3D"2" face=3D"Courier New"><span style=3D"font-size:10.0pt"=
>There is currently 1 IPR filled (2)<o:p></o:p></span></font></pre>
<pre><font size=3D"2" face=3D"Courier New"><span style=3D"font-size:10.0pt"=
><o:p>&nbsp;</o:p></span></font></pre>
<pre style=3D"margin-left:42.0pt;text-indent:-24.0pt;mso-list:l0 level1 lfo=
2"><![if !supportLists]><font size=3D"2" face=3D"Courier New"><span style=
=3D"font-size:10.0pt"><span style=3D"mso-list:Ignore">(1)<font size=3D"1" f=
ace=3D"Times New Roman"><span style=3D"font:7.0pt &quot;Times New Roman&quo=
t;">&nbsp; </span></font></span></span></font><![endif]><a href=3D"https://=
tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-07">http=
s://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-07</=
a><o:p></o:p></pre>
<pre style=3D"margin-left:42.0pt;text-indent:-24.0pt;mso-list:l0 level1 lfo=
2"><![if !supportLists]><font size=3D"2" face=3D"Courier New"><span style=
=3D"font-size:10.0pt"><span style=3D"mso-list:Ignore">(2)<font size=3D"1" f=
ace=3D"Times New Roman"><span style=3D"font:7.0pt &quot;Times New Roman&quo=
t;">&nbsp; </span></font></span></span></font><![endif]><a href=3D"https://=
datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-srv6-network-pr=
ogramming&amp;submit=3Ddraft">https://datatracker.ietf.org/ipr/search/?id=
=3Ddraft-filsfils-spring-srv6-network-programming&amp;submit=3Ddraft</a><o:=
p></o:p></pre>
<pre><font size=3D"2" face=3D"Courier New"><span style=3D"font-size:10.0pt"=
><o:p>&nbsp;</o:p></span></font></pre>
<pre><font size=3D"2" face=3D"Courier New"><span style=3D"font-size:10.0pt"=
><o:p>&nbsp;</o:p></span></font></pre>
<pre><font size=3D"2" face=3D"Courier New"><span lang=3D"FR" style=3D"font-=
size:10.0pt">Thank you,<o:p></o:p></span></font></pre>
<pre><font size=3D"2" face=3D"Courier New"><span lang=3D"FR" style=3D"font-=
size:10.0pt">--Bruno &amp; Rob.<o:p></o:p></span></font></pre>
<p class=3D"MsoNormal"><font size=3D"2" face=3D"Calibri"><span lang=3D"FR" =
style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></span></font></p>
<pre><font size=3D"2" face=3D"Courier New"><span lang=3D"FR" style=3D"font-=
size:10.0pt">______________________________________________________________=
___________________________________________________________<o:p></o:p></spa=
n></font></pre>
<pre><font size=3D"2" face=3D"Courier New"><span lang=3D"FR" style=3D"font-=
size:10.0pt"><o:p>&nbsp;</o:p></span></font></pre>
<pre><font size=3D"2" face=3D"Courier New"><span lang=3D"FR" style=3D"font-=
size:10.0pt">Ce message et ses pieces jointes peuvent contenir des informat=
ions confidentielles ou privilegiees et ne doivent donc<o:p></o:p></span></=
font></pre>
<pre><font size=3D"2" face=3D"Courier New"><span lang=3D"FR" style=3D"font-=
size:10.0pt">pas etre diffuses, exploites ou copies sans autorisation. Si v=
ous avez recu ce message par erreur, veuillez le signaler<o:p></o:p></span>=
</font></pre>
<pre><font size=3D"2" face=3D"Courier New"><span lang=3D"FR" style=3D"font-=
size:10.0pt">a l'expediteur et le detruire ainsi que les pieces jointes. Le=
s messages electroniques etant susceptibles d'alteration,<o:p></o:p></span>=
</font></pre>
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From: "Dongjie (Jimmy)" <jie.dong@huawei.com>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
CC: "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
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Yes, support.

This document is fundamental to SRv6, and there are several drafts relying =
on its progress.

Best regards,
Jie

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of bruno.decraene@o=
range.com
Sent: Thursday, March 14, 2019 2:50 AM
To: SPRING WG <spring@ietf.org>
Cc: draft-filsfils-spring-srv6-network-programming@ietf.org
Subject: [spring] Working Group Adoption Call for draft-filsfils-spring-srv=
6-network-programming


Hi SPRING WG,



This email initiates a three week call for working group adoption for draft=
-filsfils-spring-srv6-network-programming. (Three weeks to account for the =
IETF week)



Please indicate your support, comments, or objection, for adopting this dra=
ft as a working group item by April, 3rd, 2019 (aka 2019-04-03)

We are particularly interested in hearing from working group members that a=
re not co-authors of this draft.



We are also looking for volunteers who would be ready to perform a technica=
l review of this work at some later stage, such as before or during WG the =
last call.



In parallel to this adoption call, I will send an IPR call for this documen=
t. We will need all authors and contributors to confirm their IPR position =
on this document.

There is currently 1 IPR filled (2)



(1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-program=
ming-07

(2)  https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-sr=
v6-network-programming&submit=3Ddraft





Thank you,

--Bruno & Rob.


___________________________________________________________________________=
______________________________________________



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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">Yes, support.
<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">This document is fundamental to SRv6, =
and there are several drafts relying on its progress.
<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 style=3D"border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt">
<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> Thursday, March 14, 2019 2:50 AM<br>
<b>To:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Cc:</b> draft-filsfils-spring-srv6-network-programming@ietf.org<br>
<b>Subject:</b> [spring] Working Group Adoption Call for draft-filsfils-spr=
ing-srv6-network-programming<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 email initiates a three week call for workin=
g group adoption for draft-filsfils-spring-srv6-network-programming. (Three=
 weeks to account for the IETF week)<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">Please indicate your support, comments, or object=
ion, for adopting this draft as a working group item by April, 3<sup>rd</su=
p>, 2019 (aka 2019-04-03)<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">We are particularly interested in hearing from wo=
rking group members that are not co-authors of this 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">We are also looking for volunteers who would be r=
eady to perform a technical review of this work at some later stage, such a=
s before or during WG the last call.<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 to this adoption call, I will send an=
 IPR call for this document. We will need all authors and contributors to c=
onfirm their IPR position on this document.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">There is currently 1 IPR filled (2)<o:p></o:p></s=
pan></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:42.0pt;text-indent:-24.0pt;mso-list:l0 level1 lfo=
2"><![if !supportLists]><span lang=3D"EN-US"><span style=3D"mso-list:Ignore=
">(1)<span style=3D"font:7.0pt &quot;Times New Roman&quot;">&nbsp; </span><=
/span></span><![endif]><span lang=3D"EN-US"><a href=3D"https://tools.ietf.o=
rg/html/draft-filsfils-spring-srv6-network-programming-07">https://tools.ie=
tf.org/html/draft-filsfils-spring-srv6-network-programming-07</a><o:p></o:p=
></span></pre>
<pre style=3D"margin-left:42.0pt;text-indent:-24.0pt;mso-list:l0 level1 lfo=
2"><![if !supportLists]><span lang=3D"EN-US"><span style=3D"mso-list:Ignore=
">(2)<span style=3D"font:7.0pt &quot;Times New Roman&quot;">&nbsp; </span><=
/span></span><![endif]><span lang=3D"EN-US"><a href=3D"https://datatracker.=
ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-srv6-network-programming&am=
p;submit=3Ddraft">https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsf=
ils-spring-srv6-network-programming&amp;submit=3Ddraft</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"><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 &amp; Rob.<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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--_000_76CD132C3ADEF848BD84D028D243C927C351E189NKGEML515MBXchi_--


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Subject: Re: [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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Support WG adoption of this key document for SR.

Thanks,
Ketan

From: spring <spring-bounces@ietf.org> On Behalf Of bruno.decraene@orange.c=
om
Sent: 14 March 2019 00:20
To: SPRING WG <spring@ietf.org>
Cc: draft-filsfils-spring-srv6-network-programming@ietf.org
Subject: [spring] Working Group Adoption Call for draft-filsfils-spring-srv=
6-network-programming


Hi SPRING WG,



This email initiates a three week call for working group adoption for draft=
-filsfils-spring-srv6-network-programming. (Three weeks to account for the =
IETF week)



Please indicate your support, comments, or objection, for adopting this dra=
ft as a working group item by April, 3rd, 2019 (aka 2019-04-03)

We are particularly interested in hearing from working group members that a=
re not co-authors of this draft.



We are also looking for volunteers who would be ready to perform a technica=
l review of this work at some later stage, such as before or during WG the =
last call.



In parallel to this adoption call, I will send an IPR call for this documen=
t. We will need all authors and contributors to confirm their IPR position =
on this document.

There is currently 1 IPR filled (2)



(1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-program=
ming-07

(2)  https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-sr=
v6-network-programming&submit=3Ddraft





Thank you,

--Bruno & Rob.


___________________________________________________________________________=
______________________________________________



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<p class=3D"MsoNormal">Support WG adoption of this key document for SR.<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> 14 March 2019 00:20<br>
<b>To:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Cc:</b> draft-filsfils-spring-srv6-network-programming@ietf.org<br>
<b>Subject:</b> [spring] Working Group Adoption Call for draft-filsfils-spr=
ing-srv6-network-programming<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 email initiates a three week call for workin=
g group adoption for draft-filsfils-spring-srv6-network-programming. (Three=
 weeks to account for the IETF week)<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">Please indicate your support, comments, or object=
ion, for adopting this draft as a working group item by April, 3<sup>rd</su=
p>, 2019 (aka 2019-04-03)<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">We are particularly interested in hearing from wo=
rking group members that are not co-authors of this 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">We are also looking for volunteers who would be r=
eady to perform a technical review of this work at some later stage, such a=
s before or during WG the last call.<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 to this adoption call, I will send an=
 IPR call for this document. We will need all authors and contributors to c=
onfirm their IPR position on this document.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US">There is currently 1 IPR filled (2)<o:p></o:p></s=
pan></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:42.0pt;text-indent:-24.0pt;mso-list:l0 level1 lfo=
2"><![if !supportLists]><span lang=3D"EN-US"><span style=3D"mso-list:Ignore=
">(1)<span style=3D"font:7.0pt &quot;Times New Roman&quot;">&nbsp; </span><=
/span></span><![endif]><span lang=3D"EN-US"><a href=3D"https://tools.ietf.o=
rg/html/draft-filsfils-spring-srv6-network-programming-07">https://tools.ie=
tf.org/html/draft-filsfils-spring-srv6-network-programming-07</a><o:p></o:p=
></span></pre>
<pre style=3D"margin-left:42.0pt;text-indent:-24.0pt;mso-list:l0 level1 lfo=
2"><![if !supportLists]><span lang=3D"EN-US"><span style=3D"mso-list:Ignore=
">(2)<span style=3D"font:7.0pt &quot;Times New Roman&quot;">&nbsp; </span><=
/span></span><![endif]><span lang=3D"EN-US"><a href=3D"https://datatracker.=
ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-srv6-network-programming&am=
p;submit=3Ddraft">https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsf=
ils-spring-srv6-network-programming&amp;submit=3Ddraft</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"><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 &amp; Rob.<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>
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ut authorisation.<o:p></o:p></span></pre>
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From: Lizhenbin <lizhenbin@huawei.com>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
CC: "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
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10pt;">
<p><span style=3D"COLOR: #1f497d">Support as the co-author.</span></p>
<p><span style=3D"COLOR: #1f497d"></span>&nbsp;</p>
<p><span style=3D"COLOR: #1f497d">Best Regards,</span></p>
<p><span style=3D"COLOR: #1f497d">Zhenbin (Robin)</span></p>
<p><span style=3D"COLOR: #1f497d"></span>&nbsp;</p>
<p><span style=3D"COLOR: #1f497d"></span>&nbsp;</p>
<div style=3D"FONT-SIZE: 16px; FONT-FAMILY: Times New Roman; COLOR: #000000=
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T: 0cm; BORDER-LEFT: medium none; PADDING-RIGHT: 0cm">
<p class=3D"MsoNormal"><b><span>From:</span></b><span> spring [mailto:sprin=
g-bounces@ietf.org]
<b>On Behalf Of </b>bruno.decraene@orange.com<br>
<b>Sent:</b> Thursday, March 14, 2019 2:50 AM<br>
<b>To:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Cc:</b> draft-filsfils-spring-srv6-network-programming@ietf.org<br>
<b>Subject:</b> [spring] IPR Poll for draft-filsfils-spring-srv6-network-pr=
ogramming</span></p>
</div>
</div>
<p class=3D"MsoNormal">&nbsp;</p>
<pre>Hi authors, SPRING WG,</pre>
<pre>&nbsp;</pre>
<pre>In parallel to the call for adoption for draft-filsfils-spring-srv6-ne=
twork-programming (1), we would like to poll for IPR.</pre>
<pre>&nbsp;</pre>
<pre>If you are aware of IPR that applies to draft-filsfils-spring-srv6-net=
work-programming please respond to this email.</pre>
<pre>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).</pre>
<pre>&nbsp;</pre>
<pre>If you are an *author or contributor* please respond to this email reg=
ardless of whether or not you're aware of any IPR.</pre>
<pre>If you are not an author or contributor, please explicitly respond onl=
y if you are aware of IPR that has not yet been disclosed.</pre>
<pre>&nbsp;</pre>
<pre>This document will not advance into the working group until IPR confir=
mations have been received from all authors and contributors.</pre>
<pre>&nbsp;</pre>
<pre>Thank you,</pre>
<pre>&nbsp;</pre>
<pre style=3D"MARGIN-LEFT: 24pt; TEXT-INDENT: -24pt"><span>(1)<span style=
=3D"FONT: 7pt &quot;Times New Roman&quot;">&nbsp; </span></span><a href=3D"=
https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-=
07" rel=3D"noopener noreferrer" target=3D"_blank">https://tools.ietf.org/ht=
ml/draft-filsfils-spring-srv6-network-programming-07</a></pre>
<pre>&nbsp;</pre>
<pre>&nbsp;</pre>
<pre><span lang=3D"FR">--Bruno &amp; Rob.</span></pre>
<p class=3D"MsoNormal"><span lang=3D"FR"></span>&nbsp;</p>
<pre><span lang=3D"FR">____________________________________________________=
_____________________________________________________________________</span=
></pre>
<pre><span lang=3D"FR">&nbsp;</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</span></p=
re>
<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</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,</span><=
/pre>
<pre><span lang=3D"FR">Orange decline toute responsabilite si ce message a =
ete altere, deforme ou falsifie. Merci.</span></pre>
<pre><span lang=3D"FR">&nbsp;</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;</span></pre>
<pre><span lang=3D"FR">they should not be distributed, used or copied witho=
ut authorisation.</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.</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.</span></pre>
<pre><span lang=3D"FR">Thank you.</span></pre>
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From: Lizhenbin <lizhenbin@huawei.com>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
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10pt;">
<p>Support as the co-author.</p>
<p>&nbsp;</p>
<p>Best Regards,</p>
<p>Zhenbin (Robin)</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<div style=3D"FONT-SIZE: 16px; FONT-FAMILY: Times New Roman; COLOR: #000000=
">
<hr tabindex=3D"-1">
<div id=3D"divRpF908263" style=3D"DIRECTION: ltr"><font color=3D"#000000" s=
ize=3D"2" face=3D"Tahoma"><b>=B7=A2=BC=FE=C8=CB:</b> bruno.decraene@orange.=
com [bruno.decraene@orange.com]<br>
<b>=B7=A2=CB=CD=CA=B1=BC=E4:</b> 2019=C4=EA3=D4=C214=C8=D5 2:49<br>
<b>=CA=D5=BC=FE=C8=CB:</b> SPRING WG<br>
<b>=B3=AD=CB=CD:</b> draft-filsfils-spring-srv6-network-programming@ietf.or=
g<br>
<b>=D6=F7=CC=E2:</b> Working Group Adoption Call for draft-filsfils-spring-=
srv6-network-programming<br>
</font><br>
</div>
<div></div>
<div>
<div class=3D"WordSection1">
<pre><span lang=3D"EN-US">Hi SPRING WG,</span></pre>
<pre><span lang=3D"EN-US">&nbsp;</span></pre>
<pre><span lang=3D"EN-US">This email initiates a three week call for workin=
g group adoption for draft-filsfils-spring-srv6-network-programming. (Three=
 weeks to account for the IETF week)</span></pre>
<pre><span lang=3D"EN-US">&nbsp;</span></pre>
<pre><span lang=3D"EN-US">Please indicate your support, comments, or object=
ion, for adopting this draft as a working group item by April, 3<sup>rd</su=
p>, 2019 (aka 2019-04-03)</span></pre>
<pre><span lang=3D"EN-US">We are particularly interested in hearing from wo=
rking group members that are not co-authors of this draft.</span></pre>
<pre><span lang=3D"EN-US">&nbsp;</span></pre>
<pre><span lang=3D"EN-US">We are also looking for volunteers who would be r=
eady to perform a technical review of this work at some later stage, such a=
s before or during WG the last call.</span></pre>
<pre><span lang=3D"EN-US">&nbsp;</span></pre>
<pre><span lang=3D"EN-US">In parallel to this adoption call, I will send an=
 IPR call for this document. We will need all authors and contributors to c=
onfirm their IPR position on this document.</span></pre>
<pre><span lang=3D"EN-US">There is currently 1 IPR filled (2)</span></pre>
<pre><span lang=3D"EN-US">&nbsp;</span></pre>
<pre style=3D"MARGIN-LEFT: 42pt; TEXT-INDENT: -24pt"><span lang=3D"EN-US"><=
span>(1)<span style=3D"FONT: 7pt &quot;Times New Roman&quot;">&nbsp; </span=
></span></span><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/=
draft-filsfils-spring-srv6-network-programming-07" rel=3D"noopener noreferr=
er" target=3D"_blank">https://tools.ietf.org/html/draft-filsfils-spring-srv=
6-network-programming-07</a></span></pre>
<pre style=3D"MARGIN-LEFT: 42pt; TEXT-INDENT: -24pt"><span lang=3D"EN-US"><=
span>(2)<span style=3D"FONT: 7pt &quot;Times New Roman&quot;">&nbsp; </span=
></span></span><span lang=3D"EN-US"><a href=3D"https://datatracker.ietf.org=
/ipr/search/?id=3Ddraft-filsfils-spring-srv6-network-programming&amp;submit=
=3Ddraft" rel=3D"noopener noreferrer" target=3D"_blank">https://datatracker=
.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-srv6-network-programming&a=
mp;submit=3Ddraft</a></span></pre>
<pre><span lang=3D"EN-US">&nbsp;</span></pre>
<pre><span lang=3D"EN-US">&nbsp;</span></pre>
<pre><span class=3D"SpellE">Thank</span> <span class=3D"SpellE">you</span>,=
</pre>
<pre>--Bruno &amp; Rob.</pre>
<p class=3D"MsoNormal">&nbsp;</p>
</div>
<pre>______________________________________________________________________=
___________________________________________________

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<p>I am not aware of any IPR about the draft except the disclosed one.</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>Best Regards,</p>
<p>Zhenbin (Robin)</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<div style=3D"FONT-SIZE: 16px; FONT-FAMILY: Times New Roman; COLOR: #000000=
">
<hr tabindex=3D"-1">
<div id=3D"divRpF597407" style=3D"DIRECTION: ltr"><font color=3D"#000000" s=
ize=3D"2" face=3D"Tahoma"><b>=B7=A2=BC=FE=C8=CB:</b> bruno.decraene@orange.=
com [bruno.decraene@orange.com]<br>
<b>=B7=A2=CB=CD=CA=B1=BC=E4:</b> 2019=C4=EA3=D4=C214=C8=D5 2:50<br>
<b>=CA=D5=BC=FE=C8=CB:</b> SPRING WG<br>
<b>=B3=AD=CB=CD:</b> draft-filsfils-spring-srv6-network-programming@ietf.or=
g<br>
<b>=D6=F7=CC=E2:</b> IPR Poll for draft-filsfils-spring-srv6-network-progra=
mming<br>
</font><br>
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<div>
<div class=3D"WordSection1">
<pre><span lang=3D"EN-US">Hi authors, SPRING WG,</span></pre>
<pre><span lang=3D"EN-US">&nbsp;</span></pre>
<pre><span lang=3D"EN-US">In parallel to the call for adoption for draft-fi=
lsfils-spring-srv6-network-programming (1), we would like to poll for IPR.<=
/span></pre>
<pre><span lang=3D"EN-US">&nbsp;</span></pre>
<pre><span lang=3D"EN-US">If you are aware of IPR that applies to draft-fil=
sfils-spring-srv6-network-programming please respond to this email.</span><=
/pre>
<pre><span lang=3D"EN-US">If you are aware of IPR, please indicate whether =
it has been disclosed in accordance with IETF IPR rules (RFCs 3979, 4879, 3=
669 and 5378 provide more details).</span></pre>
<pre><span lang=3D"EN-US">&nbsp;</span></pre>
<pre><span lang=3D"EN-US">If you are an *author or contributor* please resp=
ond to this email regardless of whether or not you're aware of any IPR.</sp=
an></pre>
<pre><span lang=3D"EN-US">If you are not an author or contributor, please e=
xplicitly respond only if you are aware of IPR that has not yet been disclo=
sed.</span></pre>
<pre><span lang=3D"EN-US">&nbsp;</span></pre>
<pre><span lang=3D"EN-US">This document will not advance into the working g=
roup until IPR confirmations have been received from all authors and contri=
butors.</span></pre>
<pre><span lang=3D"EN-US">&nbsp;</span></pre>
<pre><span lang=3D"EN-US">Thank you,</span></pre>
<pre><span lang=3D"EN-US">&nbsp;</span></pre>
<pre style=3D"MARGIN-LEFT: 24pt; TEXT-INDENT: -24pt"><span lang=3D"EN-US"><=
span>(1)<span style=3D"FONT: 7pt &quot;Times New Roman&quot;">&nbsp; </span=
></span></span><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/=
draft-filsfils-spring-srv6-network-programming-07" rel=3D"noopener noreferr=
er" target=3D"_blank">https://tools.ietf.org/html/draft-filsfils-spring-srv=
6-network-programming-07</a></span></pre>
<pre><span lang=3D"EN-US">&nbsp;</span></pre>
<pre><span lang=3D"EN-US">&nbsp;</span></pre>
<pre>--Bruno &amp; Rob.</pre>
<p class=3D"MsoNormal">&nbsp;</p>
</div>
<pre>______________________________________________________________________=
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From: tech_kals Kals <tech.kals@gmail.com>
Date: Thu, 14 Mar 2019 10:09:30 +0530
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To: "Ketan Talaulikar (ketant)" <ketant@cisco.com>
Cc: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>,  "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, "spring@ietf.org" <spring@ietf.org>,  "Clarence Filsfils (cfilsfil)" <cfilsfil@cisco.com>,  "ask-segment-routing(mailer list)" <ask-segment-routing@cisco.com>,  "Stefano Previdi (sprevidi)" <sprevidi@cisco.com>, "Peter Psenak (ppsenak)" <ppsenak@cisco.com>
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Subject: Re: [spring] Questions on Segment Routing
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Hi Ketan,

Thanks for your reply.

Sure, I will go through them.

Meanwhile, let us wait if someone can answer to my questions.

thanks,
__kals__


On Wed, Mar 13, 2019 at 11:10 AM Ketan Talaulikar (ketant) <ketant@cisco.com>
wrote:

> Hi Kaliyaperumal,
>
>
>
> May I suggest some pointers to resources which would help you?
>
>
>
> https://datatracker.ietf.org/wg/spring/documents/
>
>
>
> More specifically, pertaining to your questions below:
>
> https://datatracker.ietf.org/doc/rfc8402/
>
> https://datatracker.ietf.org/doc/rfc8403/
>
> https://datatracker.ietf.org/doc/rfc8426/
>
> https://datatracker.ietf.org/doc/draft-ietf-6man-segment-routing-header/
>
>
> https://datatracker.ietf.org/doc/draft-voyer-6man-extension-header-insertion/
>
> https://datatracker.ietf.org/doc/draft-dukes-spring-mtu-overhead-analysis/
>
>
>
> There are several others in an around the areas of your questions.
>
>
>
> For Interop, I would suggest looking up EANTC reports of their tests.
>
>
>
> Besides this, if you were to search the web, you would find other
> resources that gives you further information that are design and deployment
> specific.
>
>
>
> Hope this helps.
>
>
>
> Thanks,
>
> Ketan
>
>
>
> *From:* spring <spring-bounces@ietf.org> *On Behalf Of *tech_kals Kals
> *Sent:* 08 March 2019 10:33
> *To:* Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
> *Cc:* Les Ginsberg (ginsberg) <ginsberg@cisco.com>; spring@ietf.org;
> Ahmed Bashandy (bashandy) <bashandy@cisco.com>; tech_kals Kals <
> tech.kals@gmail.com>; Clarence Filsfils (cfilsfil) <cfilsfil@cisco.com>;
> ask-segment-routing(mailer list) <ask-segment-routing@cisco.com>; Stefano
> Previdi (sprevidi) <sprevidi@cisco.com>; Peter Psenak (ppsenak) <
> ppsenak@cisco.com>
> *Subject:* Re: [spring] Questions on Segment Routing
>
>
>
> Hi Alexander,
>
>
>
> Thank you so much for your response.
>
>
>
> Am looking answer for other questions as well. Can someone please reply if
> you can.
>
>
>
> Thanks in advance.
>
>
>
> Regards,
>
> Kaliyaperumal K
>
>
>
>
>
>
>
> On Wed, Mar 6, 2019 at 11:03 AM Alexander Vainshtein <
> Alexander.Vainshtein@ecitele.com> wrote:
>
> Kals,
>
> Some short answers reflecting my personal understandings
>
> 1. LSP Ping and Traceroute work just fine with SR-MPLS. Therefore
> on-demand OAM is not a problem.
>
> 2. There are several options for proactive OAM in SR-MPLS, including usage
> of Path Segments.
>
> 3. Prefix SIDs are NOT a replacement for BGP/MPLS IP VPNs.
>
> Thumb typed by Sasha Vainshtein
>
>
> ------------------------------
>
> *From:* spring <spring-bounces@ietf.org> on behalf of tech_kals Kals <
> tech.kals@gmail.com>
> *Sent:* Wednesday, March 6, 2019 5:56:35 AM
> *To:* ask-segment-routing@cisco.com; Stefano Previdi (sprevidi);
> cfilsfil@cisco.com; Ahmed Bashandy (bashandy); Les Ginsberg (ginsberg);
> Peter Psenak (ppsenak); martin.pilka@pantheon.tech; spring@ietf.org
> *Subject:* [spring] Questions on Segment Routing
>
>
>
> Hi Experts,
>
>
>
> I have few questions on Segment Routing. Can you please clarify my doubts.
>
>
>
> 1) How OAM can be done in segment-routed networks ?
>
>      I think, MPLS OAM is not possible with SR as network infrastructure
> doesn't have any LSP state.
>
>      With SDN controller in place, do we really need traditional OAM ?
>
>      SDN controller can do OAM, but at what cost (like BGP-LS) ?
>
>
>
> 2) How will the traffic handoff happen from aggregate network to core
> network ?
>
>     core is running RSVP-TE, so IP handoff  can be done on edge router ?
>
>     I don't think, SDN controller can control RSVP enabled routers.
> So, how it is to make end-to-end TE i..e from Aggregate router to Core
> Router ?
>
>
>
> 3) can prefix sid be used to replace VRF in L3VPN scenario? (or any other
> way in SR can avoid vrf ?)
>
>      Assume, on a router there are two interfaces. one is 10.1.1.0 VRF-1,
> another one is VRF2-10.1.1.0.
>
>      Which SID should I use to differentiate them? Can I use, prefix SID
> in this case ?
>
>      Is the below will work ?
>
>      Eth1 - VRF-1: 10.1.1.0  == Prefix SID: 1000
>
>      Eth2 - VRF-2: 10.1.1.0  == Prefix SID: 2000
>
>
>
> 4) How to handle multicast/broadcast using SR ?
>
>
>
> 5) SRv6 stacking ipv6 SRH might hit MTU limit somewhere in the network.
>
>      Is my understanding correct ?
>
>
>
> 6) Does VRRP work with SR ? how fault would be propagated in a necklace
> topology?
>
>
>
> 7) Is there any known issues related to interop with different vendors ?
>
>
>
> 8) While programming Node-SID on MPLS ILM table, can I assume node-SID
> would always be programmed with SWAP operation except on PHP node?
>
>
>
> Thanks,
>
> __kals__
>
>
> ___________________________________________________________________________
>
> 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.
> ___________________________________________________________________________
>
>

--0000000000009de1250584068668
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Hi Ketan,<div><br></div><div>Thanks for your reply.</div><=
div><br></div><div>Sure, I will go through them.</div><div><br></div><div>M=
eanwhile, let us wait if someone can answer to my questions.</div><div><br>=
</div><div>thanks,</div><div>__kals__</div><div><br></div></div><br><div cl=
ass=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Wed, Mar 13, 2=
019 at 11:10 AM Ketan Talaulikar (ketant) &lt;<a href=3D"mailto:ketant@cisc=
o.com">ketant@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"EN-IN">
<div class=3D"gmail-m_-4847054973784373118WordSection1">
<p class=3D"MsoNormal"><span>Hi Kaliyaperumal,<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>May I suggest some pointers to resources which=
 would help you?<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span><a href=3D"https://datatracker.ietf.org/wg/spr=
ing/documents/" target=3D"_blank">https://datatracker.ietf.org/wg/spring/do=
cuments/</a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>More specifically, pertaining to your question=
s below:<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><a href=3D"https://datatracker.ietf.org/doc/rf=
c8402/" target=3D"_blank">https://datatracker.ietf.org/doc/rfc8402/</a><u><=
/u><u></u></span></p>
<p class=3D"MsoNormal"><span><a href=3D"https://datatracker.ietf.org/doc/rf=
c8403/" target=3D"_blank">https://datatracker.ietf.org/doc/rfc8403/</a><u><=
/u><u></u></span></p>
<p class=3D"MsoNormal"><span><a href=3D"https://datatracker.ietf.org/doc/rf=
c8426/" target=3D"_blank">https://datatracker.ietf.org/doc/rfc8426/</a><u><=
/u><u></u></span></p>
<p class=3D"MsoNormal"><span><a href=3D"https://datatracker.ietf.org/doc/dr=
aft-ietf-6man-segment-routing-header/" target=3D"_blank">https://datatracke=
r.ietf.org/doc/draft-ietf-6man-segment-routing-header/</a><u></u><u></u></s=
pan></p>
<p class=3D"MsoNormal"><span><a href=3D"https://datatracker.ietf.org/doc/dr=
aft-voyer-6man-extension-header-insertion/" target=3D"_blank">https://datat=
racker.ietf.org/doc/draft-voyer-6man-extension-header-insertion/</a><u></u>=
<u></u></span></p>
<p class=3D"MsoNormal"><span><a href=3D"https://datatracker.ietf.org/doc/dr=
aft-dukes-spring-mtu-overhead-analysis/" target=3D"_blank">https://datatrac=
ker.ietf.org/doc/draft-dukes-spring-mtu-overhead-analysis/</a><u></u><u></u=
></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>There are several others in an around the area=
s of your questions.
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>For Interop, I would suggest looking up EANTC =
reports of their tests.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>Besides this, if you were to search the web, y=
ou would find other resources that gives you further information that are d=
esign and deployment specific.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>Hope this helps.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>Thanks,<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span>Ketan<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></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>tech_kals Kals<br>
<b>Sent:</b> 08 March 2019 10:33<br>
<b>To:</b> Alexander Vainshtein &lt;<a href=3D"mailto:Alexander.Vainshtein@=
ecitele.com" target=3D"_blank">Alexander.Vainshtein@ecitele.com</a>&gt;<br>
<b>Cc:</b> Les Ginsberg (ginsberg) &lt;<a href=3D"mailto:ginsberg@cisco.com=
" target=3D"_blank">ginsberg@cisco.com</a>&gt;; <a href=3D"mailto:spring@ie=
tf.org" target=3D"_blank">spring@ietf.org</a>; Ahmed Bashandy (bashandy) &l=
t;<a href=3D"mailto:bashandy@cisco.com" target=3D"_blank">bashandy@cisco.co=
m</a>&gt;; tech_kals Kals &lt;<a href=3D"mailto:tech.kals@gmail.com" target=
=3D"_blank">tech.kals@gmail.com</a>&gt;; Clarence Filsfils (cfilsfil) &lt;<=
a href=3D"mailto:cfilsfil@cisco.com" target=3D"_blank">cfilsfil@cisco.com</=
a>&gt;; ask-segment-routing(mailer list) &lt;<a href=3D"mailto:ask-segment-=
routing@cisco.com" target=3D"_blank">ask-segment-routing@cisco.com</a>&gt;;
 Stefano Previdi (sprevidi) &lt;<a href=3D"mailto:sprevidi@cisco.com" targe=
t=3D"_blank">sprevidi@cisco.com</a>&gt;; Peter Psenak (ppsenak) &lt;<a href=
=3D"mailto:ppsenak@cisco.com" target=3D"_blank">ppsenak@cisco.com</a>&gt;<b=
r>
<b>Subject:</b> Re: [spring] Questions on Segment Routing<u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<div>
<p class=3D"MsoNormal">Hi Alexander,<u></u><u></u></p>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Thank you so much for your response.<u></u><u></u></=
p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Am looking answer for other questions as well. Can s=
omeone please reply if you can.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Thanks in advance.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Regards,<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Kaliyaperumal K<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>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<div>
<div>
<p class=3D"MsoNormal">On Wed, Mar 6, 2019 at 11:03 AM Alexander Vainshtein=
 &lt;<a href=3D"mailto:Alexander.Vainshtein@ecitele.com" target=3D"_blank">=
Alexander.Vainshtein@ecitele.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-left:4=
.8pt;margin-right:0cm">
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-family:Arial,sans-serif;color:bl=
ack">Kals,
<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-family:Arial,sans-serif;color:bl=
ack">Some short answers reflecting my personal understandings<u></u><u></u>=
</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-family:Arial,sans-serif;color:bl=
ack">1. LSP Ping and Traceroute work just fine with SR-MPLS. Therefore on-d=
emand OAM is not a problem.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-family:Arial,sans-serif;color:bl=
ack">2. There are several options for proactive OAM in SR-MPLS, including u=
sage of Path Segments.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-bottom:12pt"><span style=3D"font-fam=
ily:Arial,sans-serif;color:black">3. Prefix SIDs are NOT a replacement for =
BGP/MPLS IP VPNs.<u></u><u></u></span></p>
</div>
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-family:Arial,sans-serif;color:bl=
ack">Thumb typed by Sasha Vainshtein<u></u><u></u></span></p>
</div>
<p class=3D"MsoNormal"><span style=3D"font-family:Arial,sans-serif;color:bl=
ack"><u></u>=C2=A0<u></u></span></p>
</div>
<div class=3D"MsoNormal" align=3D"center" style=3D"text-align:center">
<hr size=3D"3" width=3D"98%" align=3D"center">
</div>
<div id=3D"gmail-m_-4847054973784373118gmail-m_3632511918143968223divRplyFw=
dMsg">
<p class=3D"MsoNormal"><b><span style=3D"color:black">From:</span></b><span=
 style=3D"color:black"> spring &lt;<a href=3D"mailto:spring-bounces@ietf.or=
g" target=3D"_blank">spring-bounces@ietf.org</a>&gt; on behalf of tech_kals=
 Kals &lt;<a href=3D"mailto:tech.kals@gmail.com" target=3D"_blank">tech.kal=
s@gmail.com</a>&gt;<br>
<b>Sent:</b> Wednesday, March 6, 2019 5:56:35 AM<br>
<b>To:</b> <a href=3D"mailto:ask-segment-routing@cisco.com" target=3D"_blan=
k">ask-segment-routing@cisco.com</a>; Stefano Previdi (sprevidi);
<a href=3D"mailto:cfilsfil@cisco.com" target=3D"_blank">cfilsfil@cisco.com<=
/a>; Ahmed Bashandy (bashandy); Les Ginsberg (ginsberg); Peter Psenak (ppse=
nak);
<a href=3D"mailto:martin.pilka@pantheon.tech" target=3D"_blank">martin.pilk=
a@pantheon.tech</a>; <a href=3D"mailto:spring@ietf.org" target=3D"_blank">
spring@ietf.org</a><br>
<b>Subject:</b> [spring] Questions on Segment Routing</span> <u></u><u></u>=
</p>
<div>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
</div>
</div>
<div>
<div>
<p class=3D"MsoNormal">Hi Experts, <u></u><u></u></p>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">I have few questions on Segment Routing. Can you ple=
ase clarify my doubts.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">1) How OAM can be=C2=A0done in=
=C2=A0segment-routed networks ?</span><span style=3D"font-size:12pt;font-fa=
mily:&quot;Times New Roman&quot;,serif"><u></u><u></u></span></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">=C2=A0 =C2=A0 =C2=A0I think, MPL=
S OAM is not possible with SR as=C2=A0network infrastructure doesn&#39;t ha=
ve any LSP state.</span><span style=3D"font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><u></u><u></u></span></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">=C2=A0 =C2=A0 =C2=A0With SDN con=
troller in place,=C2=A0do we really need traditional OAM=C2=A0?</span><span=
 style=3D"font-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><u>=
</u><u></u></span></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">=C2=A0=C2=A0 =C2=A0=C2=A0SDN con=
troller can do=C2=A0OAM, but at what cost (like BGP-LS) ?</span><span style=
=3D"font-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><u></u><u=
></u></span></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">=C2=A0</span><span style=3D"font=
-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><u></u><u></u></s=
pan></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">2) How will the traffic handoff =
happen from aggregate network to core network ?</span><span style=3D"font-s=
ize:12pt;font-family:&quot;Times New Roman&quot;,serif"><u></u><u></u></spa=
n></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">=C2=A0 =C2=A0 core is running RS=
VP-TE, so=C2=A0IP handoff=C2=A0 can be done=C2=A0on edge router ?</span><sp=
an style=3D"font-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><=
u></u><u></u></span></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">=C2=A0 =C2=A0 I don&#39;t think,=
 SDN controller can=C2=A0control RSVP enabled=C2=A0routers. So,=C2=A0how it=
 is to make end-to-end=C2=A0TE i..e from Aggregate router to Core Router ?<=
/span><span style=3D"font-size:12pt;font-family:&quot;Times New Roman&quot;=
,serif"><u></u><u></u></span></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">=C2=A0</span><span style=3D"font=
-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><u></u><u></u></s=
pan></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">3)=C2=A0can prefix sid be used t=
o replace VRF=C2=A0in L3VPN scenario?=C2=A0(or any other way in SR can avoi=
d vrf=C2=A0?)</span><span style=3D"font-size:12pt;font-family:&quot;Times N=
ew Roman&quot;,serif"><u></u><u></u></span></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">=C2=A0 =C2=A0 =C2=A0Assume, on a=
 router there are two interfaces. one is 10.1.1.0 VRF-1, another one is VRF=
2-10.1.1.0.=C2=A0</span><span style=3D"font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><u></u><u></u></span></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">=C2=A0 =C2=A0 =C2=A0Which SID sh=
ould I use to differentiate them? Can I use, prefix SID in this case ?</spa=
n><span style=3D"font-size:12pt;font-family:&quot;Times New Roman&quot;,ser=
if"><u></u><u></u></span></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">=C2=A0 =C2=A0 =C2=A0Is the below=
 will work ?</span><span style=3D"font-size:12pt;font-family:&quot;Times Ne=
w Roman&quot;,serif"><u></u><u></u></span></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">=C2=A0 =C2=A0 =C2=A0Eth1 - VRF-1=
: 10.1.1.0=C2=A0 =3D=3D Prefix SID: 1000</span><span style=3D"font-size:12p=
t;font-family:&quot;Times New Roman&quot;,serif"><u></u><u></u></span></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">=C2=A0 =C2=A0 =C2=A0Eth2 - VRF-2=
: 10.1.1.0=C2=A0 =3D=3D Prefix SID: 2000</span><span style=3D"font-size:12p=
t;font-family:&quot;Times New Roman&quot;,serif">=C2=A0=C2=A0<u></u><u></u>=
</span></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">=C2=A0</span><span style=3D"font=
-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><u></u><u></u></s=
pan></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">4) How to handle multicast/broad=
cast using SR=C2=A0?</span><span style=3D"font-size:12pt;font-family:&quot;=
Times New Roman&quot;,serif"><u></u><u></u></span></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">=C2=A0</span><span style=3D"font=
-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><u></u><u></u></s=
pan></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">5) SRv6 stacking ipv6 SRH might =
hit MTU limit somewhere in the network.</span><span style=3D"font-size:12pt=
;font-family:&quot;Times New Roman&quot;,serif"><u></u><u></u></span></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">=C2=A0 =C2=A0 =C2=A0Is my unders=
tanding correct ?</span><span style=3D"font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><u></u><u></u></span></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">=C2=A0</span><span style=3D"font=
-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><u></u><u></u></s=
pan></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">6) Does=C2=A0VRRP work=C2=A0with=
 SR ?=C2=A0how fault would be propagated=C2=A0in a necklace topology?=C2=A0=
</span><span style=3D"font-size:12pt;font-family:&quot;Times New Roman&quot=
;,serif"><u></u><u></u></span></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">=C2=A0</span><span style=3D"font=
-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><u></u><u></u></s=
pan></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">7) Is there any known issues rel=
ated to=C2=A0interop with=C2=A0different vendors ?</span><span style=3D"fon=
t-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><u></u><u></u></=
span></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;font-family:&quot;Times New Roman&quot;,serif=
"><u></u>=C2=A0<u></u></span></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">8) While programming Node-SID on=
 MPLS ILM table, can I assume node-SID would always be programmed with SWAP=
 operation except on PHP node?</span><span style=3D"font-size:12pt;font-fam=
ily:&quot;Times New Roman&quot;,serif"><u></u><u></u></span></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;font-family:&quot;Times New Roman&quot;,serif=
"><u></u>=C2=A0<u></u></span></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">Thanks,</span><span style=3D"fon=
t-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><u></u><u></u></=
span></p>
<p style=3D"margin:0cm 0cm 0.0001pt;background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial">
<span style=3D"font-size:12pt;color:black">__kals__</span><span style=3D"fo=
nt-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><u></u><u></u><=
/span></p>
</div>
</div>
</div>
<p class=3D"MsoNormal"><br>
___________________________________________________________________________=
<br>
<br>
This e-mail message is intended for the recipient only and contains informa=
tion which is
<br>
CONFIDENTIAL and which may be proprietary to ECI Telecom. If you have recei=
ved this
<br>
transmission in error, please inform us by e-mail, phone or fax, and then d=
elete the original
<br>
and all copies thereof.<br>
___________________________________________________________________________=
<u></u><u></u></p>
</div>
</blockquote>
</div>
</div>
</div>

</blockquote></div>

--0000000000009de1250584068668--


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From: "Pengshuping (Peng Shuping)" <pengshuping@huawei.com>
To: bruno.decraene <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
CC: draft-filsfils-spring-srv6-network-programming <draft-filsfils-spring-srv6-network-programming@ietf.org>
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<div style=3D"font-family:Calibri,Helvetica!important">I am not aware of an=
y IPR about the draft except the disclosed one.
<br>
<br>
Best regards,<br>
Shuping<br>
<br>
</div>
<div name=3D"AnyOffice-Background-Image" style=3D"border-top:1px solid #B5C=
4DF; padding:8px">
<div><b>=B7=A2=BC=FE=C8=CB=A3=BA </b>Pengshuping (Peng Shuping)&lt;<a href=
=3D"mailto:pengshuping@huawei.com">pengshuping@huawei.com</a>&gt;</div>
<div><b>=CA=D5=BC=FE=C8=CB=A3=BA </b>bruno.decraene&lt;<a href=3D"mailto:br=
uno.decraene@orange.com">bruno.decraene@orange.com</a>&gt;;SPRING WG&lt;<a =
href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&gt;</div>
<div><b>=B3=AD=CB=CD=A3=BA </b>draft-filsfils-spring-srv6-network-programmi=
ng&lt;<a href=3D"mailto:draft-filsfils-spring-srv6-network-programming@ietf=
.org">draft-filsfils-spring-srv6-network-programming@ietf.org</a>&gt;</div>
<div><b>=D6=F7=CC=E2=A3=BA </b>Re: [spring] IPR Poll for draft-filsfils-spr=
ing-srv6-network-programming</div>
<div><b>=CA=B1=BC=E4=A3=BA </b>2019-03-14 10:01:07</div>
<br>
</div>
<div>
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Support the WG adoptio=
n. </span>
</p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;</span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Thanks, </span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Shuping </span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;</span></p>
<div>
<div style=3D"border:none; border-top:solid #E1E1E1 1.0pt; padding:3.0pt 0c=
m 0cm 0cm">
<p class=3D"MsoNormal"><b><span style=3D"">From:</span></b><span style=3D""=
> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>bruno.decraene@orange.com<br>
<b>Sent:</b> Thursday, March 14, 2019 2:50 AM<br>
<b>To:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Cc:</b> draft-filsfils-spring-srv6-network-programming@ietf.org<br>
<b>Subject:</b> [spring] IPR Poll for draft-filsfils-spring-srv6-network-pr=
ogramming</span></p>
</div>
</div>
<p class=3D"MsoNormal">&nbsp;</p>
<pre>Hi authors, SPRING WG,</pre>
<pre>&nbsp;</pre>
<pre>In parallel to the call for adoption for draft-filsfils-spring-srv6-ne=
twork-programming (1), we would like to poll for IPR.</pre>
<pre>&nbsp;</pre>
<pre>If you are aware of IPR that applies to draft-filsfils-spring-srv6-net=
work-programming please respond to this email.</pre>
<pre>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).</pre>
<pre>&nbsp;</pre>
<pre>If you are an *author or contributor* please respond to this email reg=
ardless of whether or not you're aware of any IPR.</pre>
<pre>If you are not an author or contributor, please explicitly respond onl=
y if you are aware of IPR that has not yet been disclosed.</pre>
<pre>&nbsp;</pre>
<pre>This document will not advance into the working group until IPR confir=
mations have been received from all authors and contributors.</pre>
<pre>&nbsp;</pre>
<pre>Thank you,</pre>
<pre>&nbsp;</pre>
<pre style=3D"margin-left:24.0pt; text-indent:-24.0pt"><span style=3D"">(1)=
<span style=3D"font:7.0pt &quot;Times New Roman&quot;">&nbsp; </span></span=
><a href=3D"https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-=
programming-07">https://tools.ietf.org/html/draft-filsfils-spring-srv6-netw=
ork-programming-07</a></pre>
<pre>&nbsp;</pre>
<pre>&nbsp;</pre>
<pre><span lang=3D"FR">--Bruno &amp; Rob.</span></pre>
<p class=3D"MsoNormal"><span lang=3D"FR">&nbsp;</span></p>
<pre><span lang=3D"FR">____________________________________________________=
_____________________________________________________________________</span=
></pre>
<pre><span lang=3D"FR">&nbsp;</span></pre>
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From: "Pengshuping (Peng Shuping)" <pengshuping@huawei.com>
To: bruno.decraene <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
CC: draft-filsfils-spring-srv6-network-programming <draft-filsfils-spring-srv6-network-programming@ietf.org>
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<body lang=3D"FR" link=3D"blue" vlink=3D"purple" style=3D"">
<div style=3D"font-family:Calibri,Helvetica!important">Support the WG adopt=
ion.<br>
<br>
Thanks. <br>
Shuping<br>
<br>
</div>
<div name=3D"AnyOffice-Background-Image" style=3D"border-top:1px solid #B5C=
4DF; padding:8px">
<div><b>=B7=A2=BC=FE=C8=CB=A3=BA </b>bruno.decraene&lt;<a href=3D"mailto:br=
uno.decraene@orange.com">bruno.decraene@orange.com</a>&gt;</div>
<div><b>=CA=D5=BC=FE=C8=CB=A3=BA </b>SPRING WG&lt;<a href=3D"mailto:spring@=
ietf.org">spring@ietf.org</a>&gt;</div>
<div><b>=B3=AD=CB=CD=A3=BA </b>draft-filsfils-spring-srv6-network-programmi=
ng&lt;<a href=3D"mailto:draft-filsfils-spring-srv6-network-programming@ietf=
.org">draft-filsfils-spring-srv6-network-programming@ietf.org</a>&gt;</div>
<div><b>=D6=F7=CC=E2=A3=BA </b>[spring] Working Group Adoption Call for dra=
ft-filsfils-spring-srv6-network-programming</div>
<div><b>=CA=B1=BC=E4=A3=BA </b>2019-03-14 02:50:06</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 email initiates a three week call=
 for working group adoption for draft-filsfils-spring-srv6-network-programm=
ing. (Three weeks to account for the IETF week)</span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">Please indicate your support, comments=
, or objection, for adopting this draft as a working group item by April, 3=
<sup>rd</sup>, 2019 (aka 2019-04-03)</span></pre>
<pre><span lang=3D"EN-US" style=3D"">We are particularly interested in hear=
ing from working group members that are not co-authors of this draft.</span=
></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">We are also looking for volunteers who=
 would be ready to perform a technical review of this work at some later st=
age, such as before or during WG the last call.</span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre><span lang=3D"EN-US" style=3D"">In parallel to this adoption call, I w=
ill send an IPR call for this document. We will need all authors and contri=
butors to confirm their IPR position on this document.</span></pre>
<pre><span lang=3D"EN-US" style=3D"">There is currently 1 IPR filled (2)</s=
pan></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</span></pre>
<pre style=3D"margin-left:42.0pt; text-indent:-24.0pt"><span lang=3D"EN-US"=
 style=3D""><span style=3D"">(1)<span style=3D"font:7.0pt &quot;Times New R=
oman&quot;">&nbsp; </span></span></span><span lang=3D"EN-US" style=3D""><a =
href=3D"https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-prog=
ramming-07">https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-=
programming-07</a></span></pre>
<pre style=3D"margin-left:42.0pt; text-indent:-24.0pt"><span lang=3D"EN-US"=
 style=3D""><span style=3D"">(2)<span style=3D"font:7.0pt &quot;Times New R=
oman&quot;">&nbsp; </span></span></span><span lang=3D"EN-US" style=3D""><a =
href=3D"https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring=
-srv6-network-programming&amp;submit=3Ddraft">https://datatracker.ietf.org/=
ipr/search/?id=3Ddraft-filsfils-spring-srv6-network-programming&amp;submit=
=3Ddraft</a></span></pre>
<pre><span lang=3D"EN-US" style=3D"">&nbsp;</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 &amp; Rob.</pre>
<p class=3D"MsoNormal" style=3D"">&nbsp;</p>
</div>
<pre>______________________________________________________________________=
___________________________________________________

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From: Shyam Sethuram <shyam.ioml@gmail.com>
Date: Wed, 13 Mar 2019 22:20:04 -0700
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To: Bruno Decraene <bruno.decraene@orange.com>
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Subject: Re: [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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Support the WG adoption.

thanks<<shyam

On Wed, Mar 13, 2019 at 11:49 AM <bruno.decraene@orange.com> wrote:

> Hi SPRING WG,
>
>
>
> This email initiates a three week call for working group adoption for draft-filsfils-spring-srv6-network-programming. (Three weeks to account for the IETF week)
>
>
>
> Please indicate your support, comments, or objection, for adopting this draft as a working group item by April, 3rd, 2019 (aka 2019-04-03)
>
> We are particularly interested in hearing from working group members that are not co-authors of this draft.
>
>
>
> We are also looking for volunteers who would be ready to perform a technical review of this work at some later stage, such as before or during WG the last call.
>
>
>
> In parallel to this adoption call, I will send an IPR call for this document. We will need all authors and contributors to confirm their IPR position on this document.
>
> There is currently 1 IPR filled (2)
>
>
>
> (1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-07
>
> (2)  https://datatracker.ietf.org/ipr/search/?id=draft-filsfils-spring-srv6-network-programming&submit=draft
>
>
>
>
>
> Thank you,
>
> --Bruno & Rob.
>
>
>
> _________________________________________________________________________________________________________________________
>
> 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.
>
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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 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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> https://www.ietf.org/mailman/listinfo/spring
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<div dir=3D"ltr"><div>Support the WG adoption.</div><div><br></div><div>tha=
nks&lt;&lt;shyam</div></div><br><div class=3D"gmail_quote"><div class=3D"gm=
ail_attr" dir=3D"ltr">On Wed, Mar 13, 2019 at 11:49 AM &lt;<a href=3D"mailt=
o: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;pad=
ding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;bord=
er-left-style:solid">







<div lang=3D"FR">
<div class=3D"gmail-m_5479493063893423194WordSection1">
<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 email initiates a three week call for workin=
g group adoption for draft-filsfils-spring-srv6-network-programming. (Three=
 weeks to account for the IETF week)<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 indicate your support, comments, or object=
ion, for adopting this draft as a working group item by April, 3<sup>rd</su=
p>, 2019 (aka 2019-04-03)<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US">We are particularly interested in hearing from wo=
rking group members that are not co-authors of this draft.<u></u><u></u></s=
pan></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">We are also looking for volunteers who would be r=
eady to perform a technical review of this work at some later stage, such a=
s before or during WG the last call.<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 to this adoption call, I will send an=
 IPR call for this document. We will need all authors and contributors to c=
onfirm their IPR position on this document.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US">There is currently 1 IPR filled (2)<u></u><u></u>=
</span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre style=3D"margin-left:42pt"><u></u><span lang=3D"EN-US"><span>(1)<span =
style=3D"font:7pt &quot;Times New Roman&quot;;font-size-adjust:none;font-st=
retch:normal">=C2=A0 </span></span></span><u></u><span lang=3D"EN-US"><a hr=
ef=3D"https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-progra=
mming-07" target=3D"_blank">https://tools.ietf.org/html/draft-filsfils-spri=
ng-srv6-network-programming-07</a><u></u><u></u></span></pre>
<pre style=3D"margin-left:42pt"><u></u><span lang=3D"EN-US"><span>(2)<span =
style=3D"font:7pt &quot;Times New Roman&quot;;font-size-adjust:none;font-st=
retch:normal">=C2=A0 </span></span></span><u></u><span lang=3D"EN-US"><a hr=
ef=3D"https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-s=
rv6-network-programming&amp;submit=3Ddraft" target=3D"_blank">https://datat=
racker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-srv6-network-program=
ming&amp;submit=3Ddraft</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"><u></u>=C2=A0<u></u></span></pre>
<pre><span class=3D"gmail-m_5479493063893423194SpellE">Thank</span> <span c=
lass=3D"gmail-m_5479493063893423194SpellE">you</span>,<u></u><u></u></pre>
<pre>--Bruno &amp; Rob.<u></u><u></u></pre>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<pre>______________________________________________________________________=
___________________________________________________

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Orange decline toute responsabilite si ce message a ete altere, deforme ou =
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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" target=3D"_blank" =
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</blockquote></div>

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From: tech_kals Kals <tech.kals@gmail.com>
Date: Thu, 14 Mar 2019 11:21:44 +0530
Message-ID: <CAHWErLfj1hDB-UnvCQMY+17u6HniXQLqaAjTdQ0ahOqicNnZPw@mail.gmail.com>
To: "ask-segment-routing(mailer list)" <ask-segment-routing@cisco.com>,  "Stefano Previdi (sprevidi)" <sprevidi@cisco.com>, "Clarence Filsfils (cfilsfil)" <cfilsfil@cisco.com>,  "Ahmed Bashandy (bashandy)" <bashandy@cisco.com>, "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>,  "Peter Psenak (ppsenak)" <ppsenak@cisco.com>, "spring@ietf.org" <spring@ietf.org>
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Subject: Re: [spring] How would Traffic handoff happen from aggregate network to core network ?
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Hi,

Can someone have a look at my question please.

thanks,
__kals__


On Wed, Mar 13, 2019 at 10:45 AM tech_kals Kals <tech.kals@gmail.com> wrote:

> Hi Experts,
>
>
> I just want to know how will the traffic handoff happen from aggregate
> network to core network ?
>
> Assume, core is running RSVP-TE, so IP handoff  can be done on edge router
> ?
>
>
> I don't think, SDN controller can control RSVP enabled routers. So, how
> it is to make end-to-end TE i.e from Aggregate router to Core Router ?
>
>
> Thanks,
>
> __kals__
>

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<div dir=3D"ltr">Hi,<div><br></div><div>Can someone have a look at my quest=
ion please.</div><div><br></div><div>thanks,</div><div>__kals__</div><div><=
br></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gma=
il_attr">On Wed, Mar 13, 2019 at 10:45 AM tech_kals Kals &lt;<a href=3D"mai=
lto:tech.kals@gmail.com">tech.kals@gmail.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 dir=3D"ltr"><p style=3D"ba=
ckground-image:initial;background-position:initial;background-size:initial;=
background-repeat:initial;background-origin:initial;background-clip:initial=
;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Roman&q=
uot;,serif"><span style=3D"font-family:Calibri,sans-serif;color:black;backg=
round-image:initial;background-position:initial;background-size:initial;bac=
kground-repeat:initial;background-origin:initial;background-clip:initial">H=
i Experts,</span></p><p style=3D"background-image:initial;background-positi=
on:initial;background-size:initial;background-repeat:initial;background-ori=
gin:initial;background-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;=
font-family:&quot;Times New Roman&quot;,serif"><span style=3D"font-family:C=
alibri,sans-serif;color:black;background-image:initial;background-position:=
initial;background-size:initial;background-repeat:initial;background-origin=
:initial;background-clip:initial"><br></span></p><p style=3D"background-ima=
ge:initial;background-position:initial;background-size:initial;background-r=
epeat:initial;background-origin:initial;background-clip:initial;margin:0in =
0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Roman&quot;,serif">=
<span style=3D"font-family:Calibri,sans-serif;color:black;background-image:=
initial;background-position:initial;background-size:initial;background-repe=
at:initial;background-origin:initial;background-clip:initial">I just want t=
o know how</span><span style=3D"color:black;font-family:Calibri,sans-serif;=
font-size:12pt">=C2=A0will the traffic handoff happen from aggregate networ=
k to core network ?</span></p><p style=3D"background-image:initial;backgrou=
nd-position:initial;background-size:initial;background-repeat:initial;backg=
round-origin:initial;background-clip:initial;margin:0in 0in 0.0001pt;font-s=
ize:12pt;font-family:&quot;Times New Roman&quot;,serif"><span style=3D"font=
-family:Calibri,sans-serif;color:black"></span></p><p style=3D"background-i=
mage:initial;background-position:initial;background-size:initial;background=
-repeat:initial;background-origin:initial;background-clip:initial;margin:0i=
n 0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Roman&quot;,serif=
"><span style=3D"font-family:Calibri,sans-serif;color:black;background-imag=
e:initial;background-position:initial;background-size:initial;background-re=
peat:initial;background-origin:initial;background-clip:initial">Assume, cor=
e is running RSVP-TE, so=C2=A0IP handoff=C2=A0 can be done=C2=A0on edge rou=
ter ?</span><span style=3D"font-size:12pt;font-family:Calibri,sans-serif;co=
lor:black">=C2=A0 =C2=A0=C2=A0</span></p><p style=3D"background-image:initi=
al;background-position:initial;background-size:initial;background-repeat:in=
itial;background-origin:initial;background-clip:initial;margin:0in 0in 0.00=
01pt;font-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><span st=
yle=3D"font-size:12pt;font-family:Calibri,sans-serif;color:black"><br></spa=
n></p><p style=3D"background-image:initial;background-position:initial;back=
ground-size:initial;background-repeat:initial;background-origin:initial;bac=
kground-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&qu=
ot;Times New Roman&quot;,serif"><span style=3D"font-size:12pt;font-family:C=
alibri,sans-serif;color:black">I don&#39;t think, SDN controller can=C2=A0c=
ontrol RSVP enabled=C2=A0routers. So,=C2=A0</span><span style=3D"font-size:=
12pt;color:black;font-family:Calibri,sans-serif">how it is to make end-to-e=
nd=C2=A0TE i.e from Aggregate router to Core Router ?</span></p><p style=3D=
"background-image:initial;background-position:initial;background-size:initi=
al;background-repeat:initial;background-origin:initial;background-clip:init=
ial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Roma=
n&quot;,serif"><span style=3D"font-size:12pt;color:black;font-family:Calibr=
i,sans-serif"><br></span></p><p style=3D"background-image:initial;backgroun=
d-position:initial;background-size:initial;background-repeat:initial;backgr=
ound-origin:initial;background-clip:initial;margin:0in 0in 0.0001pt;font-si=
ze:12pt;font-family:&quot;Times New Roman&quot;,serif"><span style=3D"font-=
size:12pt;color:black;font-family:Calibri,sans-serif">Thanks,</span></p><p =
style=3D"background-image:initial;background-position:initial;background-si=
ze:initial;background-repeat:initial;background-origin:initial;background-c=
lip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times =
New Roman&quot;,serif"><span style=3D"font-size:12pt;color:black;font-famil=
y:Calibri,sans-serif">__kals__</span></p></div>
</blockquote></div>

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From: "Rob Piasecki (rpiaseck)" <rpiaseck@cisco.com>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
CC: "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
Thread-Topic: [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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Cc: "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
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From: "Clarence Filsfils (cfilsfil)" <cfilsfil@cisco.com>
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Subject: Re: [spring] IPR Poll for draft-filsfils-spring-srv6-network-programming
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I am not aware of any IPR other than the one already disclosed.

Cheers,
Clarence

On 13-03-19 19:50, bruno.decraene@orange.com wrote:
> Hi authors, SPRING WG,
> 
> In parallel to the call for adoption for 
> draft-filsfils-spring-srv6-network-programming (1), we would like to 
> poll for IPR.
> 
> If you are aware of IPR that applies to 
> draft-filsfils-spring-srv6-network-programming 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.
> 
> If you are not an author or contributor, please explicitly respond only 
> if you are aware of IPR that has not yet been disclosed.
> 
> This document will not advance into the working group until IPR 
> confirmations have been received from all authors and contributors.
> 
> Thank you,
> 
> (1)https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-07
> 
> --Bruno & Rob.
> 
> _________________________________________________________________________________________________________________________
> 
> 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.
> 


From nobody Thu Mar 14 06:57:23 2019
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From: Loa Andersson <loa@pi.nu>
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Subject: [spring] Resend: Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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Working Group,

Bruno pointed out that I by mistake send this mail uni-directionally to 
him only. It is clearly intended for the working group.

/Loa


-------- Forwarded Message --------
Subject: Re: [spring] Working Group Adoption Call for 
draft-filsfils-spring-srv6-network-programming
Date: Thu, 14 Mar 2019 10:26:44 +0800
From: Loa Andersson <loa@pi.nu>
To: bruno.decraene@orange.com

Working Group,

I support the adoption of this draft as a working group document.

I made some comments on the IANA section. I don't think that these
comments needs to be resolved before adopting the draft.

https://mailarchive.ietf.org/arch/msg/spring/JJPtc8xzSlB6Qb5wKdxS7pzTry8

However, I got a response from Pablo that since there are
implementations/deployments they want to do early allocations. I think
that my comments need to be addressed prior to doing these early
allocations.

/Loa

On 2019-03-14 02:49, bruno.decraene@orange.com wrote:
> Hi SPRING WG,
> 
> This email initiates a three week call for working group adoption for 
> draft-filsfils-spring-srv6-network-programming. (Three weeks to account 
> for the IETF week)
> 
> Please indicate your support, comments, or objection, for adopting this 
> draft as a working group item by April, 3^rd , 2019 (aka 2019-04-03)
> 
> We are particularly interested in hearing from working group members 
> that are not co-authors of this draft.
> 
> We are also looking for volunteers who would be ready to perform a 
> technical review of this work at some later stage, such as before or 
> during WG the last call.
> 
> In parallel to this adoption call, I will send an IPR call for this 
> document. We will need all authors and contributors to confirm their IPR 
> position on this document.
> 
> There is currently 1 IPR filled (2)
> 
> (1)https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-07
> 
> (2)https://datatracker.ietf.org/ipr/search/?id=draft-filsfils-spring-srv6-network-programming&submit=draft
> 
> Thank  you,
> 
> --Bruno & Rob.
> 
> _________________________________________________________________________________________________________________________
> 
> 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.
> 
> 
> _______________________________________________
> 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

-- 


Loa Andersson                        email: loa@pi.nu
Senior MPLS Expert
Bronze Dragon Consulting             phone: +46 739 81 21 64


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From: Tarek Saad <tsaad.net@gmail.com>
To: "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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Subject: Re: [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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I support the adoption of this document.

Regards,
Tarek

> Hi SPRING WG,
>
>
>
> This email initiates a three week call for working group adoption for dra=
ft-filsfils-spring-srv6-network-programming. (Three weeks to account for th=
e IETF week)
>
>
>
> Please indicate your support, comments, or objection, for adopting this d=
raft as a working group item by April, 3rd, 2019 (aka 2019-04-03)
>
> We are particularly interested in hearing from working group members that=
 are not co-authors of this draft.
>
>
>
> We are also looking for volunteers who would be ready to perform a techni=
cal review of this work at some later stage, such as before or during WG th=
e last call.
>
>
>
> In parallel to this adoption call, I will send an IPR call for this docum=
ent. We will need all authors and contributors to confirm their IPR positio=
n on this document.
>
> There is currently 1 IPR filled (2)
>
>
>
> (1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-progr=
amming-07
>
> (2)  https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-=
srv6-network-programming&submit=3Ddraft
>
>
>
>
>
> Thank you,
>
> --Bruno & Rob.
>


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From: tech_kals Kals <tech.kals@gmail.com>
Date: Fri, 15 Mar 2019 10:44:25 +0530
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To: "Stefano Previdi (sprevidi)" <sprevidi@cisco.com>, "Clarence Filsfils (cfilsfil)" <cfilsfil@cisco.com>,  "Ahmed Bashandy (bashandy)" <bashandy@cisco.com>, "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>,  "Peter Psenak (ppsenak)" <ppsenak@cisco.com>, "spring@ietf.org" <spring@ietf.org>
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Subject: Re: [spring] How to support OAM on SR networks ?
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Hi,

Can someone have a look at this issue ?

thanks,
__kals__


On Wed, Mar 13, 2019 at 10:49 AM tech_kals Kals <tech.kals@gmail.com> wrote:

> Hi experts,
>
> Am so curious to know about how OAM can be supported on segment-routing
> networks ?
>
>
> I think, MPLS OAM is not possible with SR as network infrastructure
> doesn't have any LSP state.
>
>
> With SDN controller in place, do we really need traditional OAM ?
>
> Assume, SDN controller can identify the issue on the network, and it can
> configure an alternate path on the defected node.
>
>
> If SDN controller can do OAM, but at what cost (like BGP-LS) ?
>
>
> Thanks,
>
> __Kals__
>
>
>

--0000000000007cb41a05841b21fd
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Hi,<div><br></div><div>Can someone have a look at this iss=
ue ?</div><div><br></div><div>thanks,</div><div>__kals__</div><div><br></di=
v></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr=
">On Wed, Mar 13, 2019 at 10:49 AM tech_kals Kals &lt;<a href=3D"mailto:tec=
h.kals@gmail.com">tech.kals@gmail.com</a>&gt; wrote:<br></div><blockquote c=
lass=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px soli=
d rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr">Hi experts,<div><br><=
/div><div>Am so curious to know about how OAM can be supported o<span style=
=3D"color:black;font-family:Calibri,sans-serif;font-size:12pt">n=C2=A0segme=
nt-routing networks ?</span></div><div><p style=3D"background-image:initial=
;background-position:initial;background-size:initial;background-repeat:init=
ial;background-origin:initial;background-clip:initial;margin:0in 0in 0.0001=
pt;font-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><span styl=
e=3D"font-family:Calibri,sans-serif;color:black"><br></span></p><p style=3D=
"background-image:initial;background-position:initial;background-size:initi=
al;background-repeat:initial;background-origin:initial;background-clip:init=
ial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Roma=
n&quot;,serif"><span style=3D"font-family:Calibri,sans-serif;color:black">I=
 think, MPLS OAM is not possible with SR as=C2=A0</span><span style=3D"colo=
r:rgb(0,0,0);font-family:Calibri,sans-serif">network infrastructure doesn&#=
39;t have any LSP state.</span></p><p style=3D"background-image:initial;bac=
kground-position:initial;background-size:initial;background-repeat:initial;=
background-origin:initial;background-clip:initial;margin:0in 0in 0.0001pt;f=
ont-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><span style=3D=
"font-family:Calibri,sans-serif;color:black"><br></span></p><p style=3D"bac=
kground-image:initial;background-position:initial;background-size:initial;b=
ackground-repeat:initial;background-origin:initial;background-clip:initial;=
margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Roman&qu=
ot;,serif"><span style=3D"font-family:Calibri,sans-serif;color:black">W</sp=
an><span style=3D"color:black;font-family:Calibri,sans-serif;font-size:12pt=
">ith SDN controller in place,=C2=A0do we really need traditional OAM=C2=A0=
?=C2=A0</span></p><p style=3D"background-image:initial;background-position:=
initial;background-size:initial;background-repeat:initial;background-origin=
:initial;background-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;fon=
t-family:&quot;Times New Roman&quot;,serif"><span style=3D"color:black;font=
-family:Calibri,sans-serif;font-size:12pt">Assume, SDN controller can ident=
ify the issue on the network, and it can configure an alternate path on the=
 defected node.</span></p><p style=3D"background-image:initial;background-p=
osition:initial;background-size:initial;background-repeat:initial;backgroun=
d-origin:initial;background-clip:initial;margin:0in 0in 0.0001pt;font-size:=
12pt;font-family:&quot;Times New Roman&quot;,serif"><br></p><p style=3D"bac=
kground-image:initial;background-position:initial;background-size:initial;b=
ackground-repeat:initial;background-origin:initial;background-clip:initial;=
margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Roman&qu=
ot;,serif"><span style=3D"font-family:Calibri,sans-serif;color:black"><span=
 style=3D"background-image:initial;background-position:initial;background-s=
ize:initial;background-repeat:initial;background-origin:initial;background-=
clip:initial">If SDN controller can do=C2=A0OAM, but at what cost (like BGP=
-LS) ?</span></span></p><p style=3D"background-image:initial;background-pos=
ition:initial;background-size:initial;background-repeat:initial;background-=
origin:initial;background-clip:initial;margin:0in 0in 0.0001pt;font-size:12=
pt;font-family:&quot;Times New Roman&quot;,serif"><span style=3D"font-famil=
y:Calibri,sans-serif;color:black"><span style=3D"background-image:initial;b=
ackground-position:initial;background-size:initial;background-repeat:initia=
l;background-origin:initial;background-clip:initial"><br></span></span></p>=
<p style=3D"background-image:initial;background-position:initial;background=
-size:initial;background-repeat:initial;background-origin:initial;backgroun=
d-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-serif;col=
or:black"><span style=3D"background-image:initial;background-position:initi=
al;background-size:initial;background-repeat:initial;background-origin:init=
ial;background-clip:initial">Thanks,</span></span></p><p style=3D"backgroun=
d-image:initial;background-position:initial;background-size:initial;backgro=
und-repeat:initial;background-origin:initial;background-clip:initial;margin=
:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Roman&quot;,se=
rif"><span style=3D"font-family:Calibri,sans-serif;color:black"><span style=
=3D"background-image:initial;background-position:initial;background-size:in=
itial;background-repeat:initial;background-origin:initial;background-clip:i=
nitial">__Kals__</span></span></p><p style=3D"background-image:initial;back=
ground-position:initial;background-size:initial;background-repeat:initial;b=
ackground-origin:initial;background-clip:initial;margin:0in 0in 0.0001pt;fo=
nt-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><span style=3D"=
font-family:Calibri,sans-serif;color:black"><span style=3D"background-image=
:initial;background-position:initial;background-size:initial;background-rep=
eat:initial;background-origin:initial;background-clip:initial"><br></span><=
/span></p></div></div>
</blockquote></div>

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From: tech_kals Kals <tech.kals@gmail.com>
Date: Fri, 15 Mar 2019 10:45:36 +0530
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To: "Stefano Previdi (sprevidi)" <sprevidi@cisco.com>, "Clarence Filsfils (cfilsfil)" <cfilsfil@cisco.com>,  "Ahmed Bashandy (bashandy)" <bashandy@cisco.com>, "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>,  "Peter Psenak (ppsenak)" <ppsenak@cisco.com>, "spring@ietf.org" <spring@ietf.org>
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Subject: Re: [spring] How to support OAM on SR networks ?
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please ignore my previous email..


hi,

can someone answer my question please ?

thanks,
kals


On Fri, Mar 15, 2019 at 10:44 AM tech_kals Kals <tech.kals@gmail.com> wrote:

> Hi,
>
> Can someone have a look at this issue ?
>
> thanks,
> __kals__
>
>
> On Wed, Mar 13, 2019 at 10:49 AM tech_kals Kals <tech.kals@gmail.com>
> wrote:
>
>> Hi experts,
>>
>> Am so curious to know about how OAM can be supported on segment-routing
>> networks ?
>>
>>
>> I think, MPLS OAM is not possible with SR as network infrastructure
>> doesn't have any LSP state.
>>
>>
>> With SDN controller in place, do we really need traditional OAM ?
>>
>> Assume, SDN controller can identify the issue on the network, and it can
>> configure an alternate path on the defected node.
>>
>>
>> If SDN controller can do OAM, but at what cost (like BGP-LS) ?
>>
>>
>> Thanks,
>>
>> __Kals__
>>
>>
>>

--000000000000aefe3f05841b2594
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<div dir=3D"ltr">please ignore my=C2=A0previous email..<div><br></div><div>=
<br></div><div>hi,</div><div><br></div><div>can someone answer my question =
please ?</div><div><br></div><div>thanks,</div><div>kals</div><div><br></di=
v></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr=
">On Fri, Mar 15, 2019 at 10:44 AM tech_kals Kals &lt;<a href=3D"mailto:tec=
h.kals@gmail.com">tech.kals@gmail.com</a>&gt; wrote:<br></div><blockquote c=
lass=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px soli=
d rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr">Hi,<div><br></div><di=
v>Can someone have a look at this issue ?</div><div><br></div><div>thanks,<=
/div><div>__kals__</div><div><br></div></div><br><div class=3D"gmail_quote"=
><div dir=3D"ltr" class=3D"gmail_attr">On Wed, Mar 13, 2019 at 10:49 AM tec=
h_kals Kals &lt;<a href=3D"mailto:tech.kals@gmail.com" target=3D"_blank">te=
ch.kals@gmail.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 dir=3D"ltr">Hi experts,<div><br></div><div>Am so curi=
ous to know about how OAM can be supported o<span style=3D"color:black;font=
-family:Calibri,sans-serif;font-size:12pt">n=C2=A0segment-routing networks =
?</span></div><div><p style=3D"background-image:initial;background-position=
:initial;background-size:initial;background-repeat:initial;background-origi=
n:initial;background-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;fo=
nt-family:&quot;Times New Roman&quot;,serif"><span style=3D"font-family:Cal=
ibri,sans-serif;color:black"><br></span></p><p style=3D"background-image:in=
itial;background-position:initial;background-size:initial;background-repeat=
:initial;background-origin:initial;background-clip:initial;margin:0in 0in 0=
.0001pt;font-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><span=
 style=3D"font-family:Calibri,sans-serif;color:black">I think, MPLS OAM is =
not possible with SR as=C2=A0</span><span style=3D"color:rgb(0,0,0);font-fa=
mily:Calibri,sans-serif">network infrastructure doesn&#39;t have any LSP st=
ate.</span></p><p style=3D"background-image:initial;background-position:ini=
tial;background-size:initial;background-repeat:initial;background-origin:in=
itial;background-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-f=
amily:&quot;Times New Roman&quot;,serif"><span style=3D"font-family:Calibri=
,sans-serif;color:black"><br></span></p><p style=3D"background-image:initia=
l;background-position:initial;background-size:initial;background-repeat:ini=
tial;background-origin:initial;background-clip:initial;margin:0in 0in 0.000=
1pt;font-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><span sty=
le=3D"font-family:Calibri,sans-serif;color:black">W</span><span style=3D"co=
lor:black;font-family:Calibri,sans-serif;font-size:12pt">ith SDN controller=
 in place,=C2=A0do we really need traditional OAM=C2=A0?=C2=A0</span></p><p=
 style=3D"background-image:initial;background-position:initial;background-s=
ize:initial;background-repeat:initial;background-origin:initial;background-=
clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times=
 New Roman&quot;,serif"><span style=3D"color:black;font-family:Calibri,sans=
-serif;font-size:12pt">Assume, SDN controller can identify the issue on the=
 network, and it can configure an alternate path on the defected node.</spa=
n></p><p style=3D"background-image:initial;background-position:initial;back=
ground-size:initial;background-repeat:initial;background-origin:initial;bac=
kground-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&qu=
ot;Times New Roman&quot;,serif"><br></p><p style=3D"background-image:initia=
l;background-position:initial;background-size:initial;background-repeat:ini=
tial;background-origin:initial;background-clip:initial;margin:0in 0in 0.000=
1pt;font-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><span sty=
le=3D"font-family:Calibri,sans-serif;color:black"><span style=3D"background=
-image:initial;background-position:initial;background-size:initial;backgrou=
nd-repeat:initial;background-origin:initial;background-clip:initial">If SDN=
 controller can do=C2=A0OAM, but at what cost (like BGP-LS) ?</span></span>=
</p><p style=3D"background-image:initial;background-position:initial;backgr=
ound-size:initial;background-repeat:initial;background-origin:initial;backg=
round-clip:initial;margin:0in 0in 0.0001pt;font-size:12pt;font-family:&quot=
;Times New Roman&quot;,serif"><span style=3D"font-family:Calibri,sans-serif=
;color:black"><span style=3D"background-image:initial;background-position:i=
nitial;background-size:initial;background-repeat:initial;background-origin:=
initial;background-clip:initial"><br></span></span></p><p style=3D"backgrou=
nd-image:initial;background-position:initial;background-size:initial;backgr=
ound-repeat:initial;background-origin:initial;background-clip:initial;margi=
n:0in 0in 0.0001pt;font-size:12pt;font-family:&quot;Times New Roman&quot;,s=
erif"><span style=3D"font-family:Calibri,sans-serif;color:black"><span styl=
e=3D"background-image:initial;background-position:initial;background-size:i=
nitial;background-repeat:initial;background-origin:initial;background-clip:=
initial">Thanks,</span></span></p><p style=3D"background-image:initial;back=
ground-position:initial;background-size:initial;background-repeat:initial;b=
ackground-origin:initial;background-clip:initial;margin:0in 0in 0.0001pt;fo=
nt-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><span style=3D"=
font-family:Calibri,sans-serif;color:black"><span style=3D"background-image=
:initial;background-position:initial;background-size:initial;background-rep=
eat:initial;background-origin:initial;background-clip:initial">__Kals__</sp=
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From: "Zafar Ali (zali)" <zali@cisco.com>
To: tech_kals Kals <tech.kals@gmail.com>, "Stefano Previdi (sprevidi)" <sprevidi@cisco.com>, "Clarence Filsfils (cfilsfil)" <cfilsfil@cisco.com>, "Ahmed Bashandy (bashandy)" <bashandy@cisco.com>, "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, "Peter Psenak (ppsenak)" <ppsenak@cisco.com>, "spring@ietf.org" <spring@ietf.org>
CC: "Zafar Ali (zali)" <zali@cisco.com>
Thread-Topic: [spring] How to support OAM on SR networks ?
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From: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
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Date: Fri, 15 Mar 2019 08:28:02 +0000
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From: "Kentaro Ebisawa" <ebiken.g@gmail.com>
To: bruno.decraene@orange.com, "SPRING WG" <spring@ietf.org>
Cc: "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
Date: Fri, 15 Mar 2019 08:32:17 +0000
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Subject: Re: [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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I support the adoption of this draft.

Thanks,
--
Kentaro Ebisawa <ebiken.g@gmail.com>


------ Original Message ------
From: bruno.decraene@orange.com
To: "SPRING WG" <spring@ietf.org>
Cc: "draft-filsfils-spring-srv6-network-programming@ietf.org"=20
<draft-filsfils-spring-srv6-network-programming@ietf.org>
date: 2019/03/14 3:49:31
Subject: [spring] Working Group Adoption Call for=20
draft-filsfils-spring-srv6-network-programming

Hi SPRING WG,

This email initiates a three week call for working group adoption for draft=
-filsfils-spring-srv6-network-programming. (Three weeks to account for the=
 IETF week)

Please indicate your support, comments, or objection, for adopting this dra=
ft as a working group item by April, 3rd, 2019 (aka 2019-04-03)
We are particularly interested in hearing from working group members that a=
re not co-authors of this draft.

We are also looking for volunteers who would be ready to perform a technica=
l review of this work at some later stage, such as before or during WG the=
 last call.

In parallel to this adoption call, I will send an IPR call for this documen=
t. We will need all authors and contributors to confirm their IPR position=
 on this document.
There is currently 1 IPR filled (2)

(1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-program=
ming-07
(2)  https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-sr=
v6-network-programming&submit=3Ddraft


Thankyou,
--Bruno & Rob.


___________________________________________________________________________=
______________________________________________

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<link rel=3D"File-List" href=3D"cid:filelist.xml@01D4D9D5.DFE8E2B0" /><styl=
e type=3D"text/css">#x335dfe9e5e8749c p.MsoNormal
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<body><div>I support the adoption of this draft.</div><div><br /></div>
<div>Thanks,</div><div id=3D"signature_old"><div>--=C2=A0</div>Kentaro Ebis=
awa &lt;<a href=3D"mailto:ebiken.g@gmail.com">ebiken.g@gmail.com</a>&gt;</d=
iv><div><br /></div>
<div><br /></div>
<div>------ Original Message ------</div>
<div>From: <a href=3D"mailto:bruno.decraene@orange.com">bruno.decraene@oran=
ge.com</a></div>
<div>To: "SPRING WG" &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org=
</a>&gt;</div>
<div>Cc: "draft-filsfils-spring-srv6-network-programming@ietf.org" &lt;<a h=
ref=3D"mailto:draft-filsfils-spring-srv6-network-programming@ietf.org">draf=
t-filsfils-spring-srv6-network-programming@ietf.org</a>&gt;</div>
<div>date: 2019/03/14 3:49:31</div>
<div>Subject: [spring] Working Group Adoption Call for draft-filsfils-sprin=
g-srv6-network-programming</div><div><br /></div>
<div id=3D"x335dfe9e5e8749c" style=3D"tab-interval:35.4pt">
<div class=3D"WordSection1">
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">Hi SPRING WG,<o=
:p xmlns:o=3D"#unknown"></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p xmlns:o=3D=
"#unknown">=C2=A0</o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">This email init=
iates a three week call for working group adoption for draft-filsfils-sprin=
g-srv6-network-programming. (Three weeks to account for the IETF week)<o:p=
 xmlns:o=3D"#unknown"></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p xmlns:o=3D=
"#unknown">=C2=A0</o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">Please indicate =
your support, comments, or objection, for adopting this draft as a working =
group item by April, 3<sup>rd</sup>, 2019 (aka 2019-04-03)<o:p xmlns:o=3D"=
#unknown"></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">We are particul=
arly interested in hearing from working group members that are not co-autho=
rs of this draft.<o:p xmlns:o=3D"#unknown"></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p xmlns:o=3D=
"#unknown">=C2=A0</o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">We are also loo=
king for volunteers who would be ready to perform a technical review of thi=
s work at some later stage, such as before or during WG the last call.<o:p=
 xmlns:o=3D"#unknown"></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p xmlns:o=3D=
"#unknown">=C2=A0</o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">In parallel to=
 this adoption call, I will send an IPR call for this document. We will need =
all authors and contributors to confirm their IPR position on this documen=
t.<o:p xmlns:o=3D"#unknown"></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US">There is curren=
tly 1 IPR filled (2)<o:p xmlns:o=3D"#unknown"></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p xmlns:o=3D=
"#unknown">=C2=A0</o:p></span></pre>
<pre style=3D"margin-left:42.0pt;text-indent:-24.0pt;mso-list:l1 level1 lfo=
2"><!--[if !supportLists]--><span lang=3D"EN-US" style=3D"mso-fareast-font-=
family:&quot;Courier New&quot;;mso-ansi-language:EN-US">(1)<span style=3D"f=
ont-style: normal; font-variant: normal; font-stretch: normal; font-size: 7=
pt; line-height: normal; font-family: 'Times New Roman';">=C2=A0 </span></s=
pan><!--[endif]--><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><a =
href=3D"https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-pro=
gramming-07">https://tools.ietf.org/html/draft-filsfils-spring-srv6-network=
-programming-07</a><o:p xmlns:o=3D"#unknown"></o:p></span></pre>
<pre style=3D"margin-left:42.0pt;text-indent:-24.0pt;mso-list:l1 level1 lfo=
2"><!--[if !supportLists]--><span lang=3D"EN-US" style=3D"mso-fareast-font-=
family:&quot;Courier New&quot;;mso-ansi-language:EN-US">(2)<span style=3D"f=
ont-style: normal; font-variant: normal; font-stretch: normal; font-size: 7=
pt; line-height: normal; font-family: 'Times New Roman';">=C2=A0 </span></s=
pan><!--[endif]--><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><a =
href=3D"https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-sprin=
g-srv6-network-programming&amp;submit=3Ddraft">https://datatracker.ietf.org=
/ipr/search/?id=3Ddraft-filsfils-spring-srv6-network-programming&amp;submit=
=3Ddraft</a><o:p xmlns:o=3D"#unknown"></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p xmlns:o=3D=
"#unknown">=C2=A0</o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-US"><o:p xmlns:o=3D=
"#unknown">=C2=A0</o:p></span></pre>
<pre><span class=3D"SpellE">Thank</span> <span class=3D"SpellE">you</span>,=
<o:p xmlns:o=3D"#unknown"></o:p></pre>
<pre>--Bruno &amp; Rob.<o:p xmlns:o=3D"#unknown"></o:p></pre>
<p class=3D"MsoNormal" style=3D"tab-stops:179.25pt"><o:p xmlns:o=3D"#unknow=
n">=C2=A0</o:p></p>
</div>
<pre>______________________________________________________________________=
___________________________________________________

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tielles ou privilegiees et ne doivent donc
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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></div>

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From: Ahmed Abdelsalam <ahmed.abdelsalam@gssi.it>
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Date: Fri, 15 Mar 2019 10:44:33 +0100
Cc: "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
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Subject: Re: [spring] IPR Poll for draft-filsfils-spring-srv6-network-programming
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I am not aware of any IPR other than the one already disclosed.

Thanks,

Ahmed =20

=EF=BB=BFOn 15/03/2019, 09:28, "Pablo Camarillo (pcamaril)" =
<pcamaril@cisco.com> wrote: <>
=20

    Hi,

   =20

    I am not aware of any IPR other than the one already disclosed.

   =20

    Thanks,

    Pablo

   =20

    From:

    "bruno.decraene@orange.com" <bruno.decraene@orange.com>

    Date: Wednesday, 13 March 2019 at 19:50

    To: SPRING WG <spring@ietf.org>

    Cc: "draft-filsfils-spring-srv6-network-programming@ietf.org" =
<draft-filsfils-spring-srv6-network-programming@ietf.org>

    Subject: IPR Poll for draft-filsfils-spring-srv6-network-programming

    Resent-From: <alias-bounces@ietf.org>

    Resent-To: <cf@cisco.com>, <pcamaril@cisco.com>, =
<john_leddy@cable.comcast.com>, <daniel.voyer@bell.ca>, =
<satoru.matsushima@g.softbank.co.jp>, <lizhenbin@huawei.com>

    Resent-Date: Wednesday, 13 March 2019 at 19:50

  =20

   =20

  =20

    Hi authors, SPRING WG, In parallel to the call for adoption for =
draft-filsfils-spring-srv6-network-programming (1), we would like to =
poll for IPR. If you are aware of IPR that applies to =
draft-filsfils-spring-srv6-network-programming 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.If you are not an author or contributor, please explicitly respond =
only if you are aware of IPR that has not yet been disclosed. This =
document will not advance into the working group until IPR confirmations =
have been received from all authors and contributors. Thank you, (1)  =
https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming=
-07  --Bruno & Rob.

    =
__________________________________________________________________________=
_______________________________________________ Ce message et ses pieces =
jointes peuvent contenir des informations confidentielles ou =
privilegiees et ne doivent doncpas etre diffuses, exploites ou copies =
sans autorisation. Si vous avez recu ce message par erreur, veuillez le =
signalera 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.

   =20=

--Apple-Mail=_875DC56E-01C4-4806-80D6-46F87D1E689B
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  <w:LsdException Locked=3D"false" SemiHidden=3D"true" =
UnhideWhenUsed=3D"true"
   Name=3D"Table 3D effects 3"/>
  <w:LsdException Locked=3D"false" SemiHidden=3D"true" =
UnhideWhenUsed=3D"true"
   Name=3D"Table Contemporary"/>
  <w:LsdException Locked=3D"false" SemiHidden=3D"true" =
UnhideWhenUsed=3D"true"
   Name=3D"Table Elegant"/>
  <w:LsdException Locked=3D"false" SemiHidden=3D"true" =
UnhideWhenUsed=3D"true"
   Name=3D"Table Professional"/>
  <w:LsdException Locked=3D"false" SemiHidden=3D"true" =
UnhideWhenUsed=3D"true"
   Name=3D"Table Subtle 1"/>
  <w:LsdException Locked=3D"false" SemiHidden=3D"true" =
UnhideWhenUsed=3D"true"
   Name=3D"Table Subtle 2"/>
  <w:LsdException Locked=3D"false" SemiHidden=3D"true" =
UnhideWhenUsed=3D"true"
   Name=3D"Table Web 1"/>
  <w:LsdException Locked=3D"false" SemiHidden=3D"true" =
UnhideWhenUsed=3D"true"
   Name=3D"Table Web 2"/>
  <w:LsdException Locked=3D"false" SemiHidden=3D"true" =
UnhideWhenUsed=3D"true"
   Name=3D"Table Web 3"/>
  <w:LsdException Locked=3D"false" SemiHidden=3D"true" =
UnhideWhenUsed=3D"true"
   Name=3D"Balloon Text"/>
  <w:LsdException Locked=3D"false" Priority=3D"39" Name=3D"Table Grid"/>
  <w:LsdException Locked=3D"false" SemiHidden=3D"true" =
UnhideWhenUsed=3D"true"
   Name=3D"Table Theme"/>
  <w:LsdException Locked=3D"false" SemiHidden=3D"true" Name=3D"Placeholder=
 Text"/>
  <w:LsdException Locked=3D"false" Priority=3D"1" QFormat=3D"true" =
Name=3D"No Spacing"/>
  <w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light =
Shading"/>
  <w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List"/>
  <w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid"/>
  <w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium =
Shading 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium =
Shading 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List =
1"/>
  <w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List =
2"/>
  <w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid =
1"/>
  <w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid =
2"/>
  <w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid =
3"/>
  <w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List"/>
  <w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful =
Shading"/>
  <w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful =
List"/>
  <w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful =
Grid"/>
  <w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading =
Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List =
Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid =
Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium =
Shading 1 Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium =
Shading 2 Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List 1 =
Accent 1"/>
  <w:LsdException Locked=3D"false" SemiHidden=3D"true" Name=3D"Revision"/>=

  <w:LsdException Locked=3D"false" Priority=3D"34" QFormat=3D"true"
   Name=3D"List Paragraph"/>
  <w:LsdException Locked=3D"false" Priority=3D"29" QFormat=3D"true" =
Name=3D"Quote"/>
  <w:LsdException Locked=3D"false" Priority=3D"30" QFormat=3D"true"
   Name=3D"Intense Quote"/>
  <w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List 2 =
Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid 1 =
Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2 =
Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3 =
Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List =
Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful =
Shading Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List =
Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid =
Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading =
Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List =
Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid =
Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium =
Shading 1 Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium =
Shading 2 Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List 1 =
Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List 2 =
Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid 1 =
Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2 =
Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3 =
Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List =
Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful =
Shading Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List =
Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid =
Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading =
Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List =
Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid =
Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium =
Shading 1 Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium =
Shading 2 Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List 1 =
Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List 2 =
Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid 1 =
Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2 =
Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3 =
Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List =
Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful =
Shading Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List =
Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid =
Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading =
Accent 4"/>
  <w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List =
Accent 4"/>
  <w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid =
Accent 4"/>
  <w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium =
Shading 1 Accent 4"/>
  <w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium =
Shading 2 Accent 4"/>
  <w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List 1 =
Accent 4"/>
  <w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List 2 =
Accent 4"/>
  <w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid 1 =
Accent 4"/>
  <w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2 =
Accent 4"/>
  <w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3 =
Accent 4"/>
  <w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List =
Accent 4"/>
  <w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful =
Shading Accent 4"/>
  <w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List =
Accent 4"/>
  <w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid =
Accent 4"/>
  <w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading =
Accent 5"/>
  <w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List =
Accent 5"/>
  <w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid =
Accent 5"/>
  <w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium =
Shading 1 Accent 5"/>
  <w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium =
Shading 2 Accent 5"/>
  <w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List 1 =
Accent 5"/>
  <w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List 2 =
Accent 5"/>
  <w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid 1 =
Accent 5"/>
  <w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2 =
Accent 5"/>
  <w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3 =
Accent 5"/>
  <w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List =
Accent 5"/>
  <w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful =
Shading Accent 5"/>
  <w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List =
Accent 5"/>
  <w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid =
Accent 5"/>
  <w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading =
Accent 6"/>
  <w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List =
Accent 6"/>
  <w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid =
Accent 6"/>
  <w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium =
Shading 1 Accent 6"/>
  <w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium =
Shading 2 Accent 6"/>
  <w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List 1 =
Accent 6"/>
  <w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List 2 =
Accent 6"/>
  <w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid 1 =
Accent 6"/>
  <w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2 =
Accent 6"/>
  <w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3 =
Accent 6"/>
  <w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List =
Accent 6"/>
  <w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful =
Shading Accent 6"/>
  <w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List =
Accent 6"/>
  <w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid =
Accent 6"/>
  <w:LsdException Locked=3D"false" Priority=3D"19" QFormat=3D"true"
   Name=3D"Subtle Emphasis"/>
  <w:LsdException Locked=3D"false" Priority=3D"21" QFormat=3D"true"
   Name=3D"Intense Emphasis"/>
  <w:LsdException Locked=3D"false" Priority=3D"31" QFormat=3D"true"
   Name=3D"Subtle Reference"/>
  <w:LsdException Locked=3D"false" Priority=3D"32" QFormat=3D"true"
   Name=3D"Intense Reference"/>
  <w:LsdException Locked=3D"false" Priority=3D"33" QFormat=3D"true" =
Name=3D"Book Title"/>
  <w:LsdException Locked=3D"false" Priority=3D"37" SemiHidden=3D"true"
   UnhideWhenUsed=3D"true" Name=3D"Bibliography"/>
  <w:LsdException Locked=3D"false" Priority=3D"39" SemiHidden=3D"true"
   UnhideWhenUsed=3D"true" QFormat=3D"true" Name=3D"TOC Heading"/>
  <w:LsdException Locked=3D"false" Priority=3D"41" Name=3D"Plain Table =
1"/>
  <w:LsdException Locked=3D"false" Priority=3D"42" Name=3D"Plain Table =
2"/>
  <w:LsdException Locked=3D"false" Priority=3D"43" Name=3D"Plain Table =
3"/>
  <w:LsdException Locked=3D"false" Priority=3D"44" Name=3D"Plain Table =
4"/>
  <w:LsdException Locked=3D"false" Priority=3D"45" Name=3D"Plain Table =
5"/>
  <w:LsdException Locked=3D"false" Priority=3D"40" Name=3D"Grid Table =
Light"/>
  <w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"Grid Table 1 =
Light"/>
  <w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"Grid Table =
2"/>
  <w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"Grid Table =
3"/>
  <w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"Grid Table =
4"/>
  <w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"Grid Table 5 =
Dark"/>
  <w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"Grid Table 6 =
Colorful"/>
  <w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"Grid Table 7 =
Colorful"/>
  <w:LsdException Locked=3D"false" Priority=3D"46"
   Name=3D"Grid Table 1 Light Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"Grid Table 2 =
Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"Grid Table 3 =
Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"Grid Table 4 =
Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"Grid Table 5 =
Dark Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"51"
   Name=3D"Grid Table 6 Colorful Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"52"
   Name=3D"Grid Table 7 Colorful Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"46"
   Name=3D"Grid Table 1 Light Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"Grid Table 2 =
Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"Grid Table 3 =
Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"Grid Table 4 =
Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"Grid Table 5 =
Dark Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"51"
   Name=3D"Grid Table 6 Colorful Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"52"
   Name=3D"Grid Table 7 Colorful Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"46"
   Name=3D"Grid Table 1 Light Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"Grid Table 2 =
Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"Grid Table 3 =
Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"Grid Table 4 =
Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"Grid Table 5 =
Dark Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"51"
   Name=3D"Grid Table 6 Colorful Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"52"
   Name=3D"Grid Table 7 Colorful Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"46"
   Name=3D"Grid Table 1 Light Accent 4"/>
  <w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"Grid Table 2 =
Accent 4"/>
  <w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"Grid Table 3 =
Accent 4"/>
  <w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"Grid Table 4 =
Accent 4"/>
  <w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"Grid Table 5 =
Dark Accent 4"/>
  <w:LsdException Locked=3D"false" Priority=3D"51"
   Name=3D"Grid Table 6 Colorful Accent 4"/>
  <w:LsdException Locked=3D"false" Priority=3D"52"
   Name=3D"Grid Table 7 Colorful Accent 4"/>
  <w:LsdException Locked=3D"false" Priority=3D"46"
   Name=3D"Grid Table 1 Light Accent 5"/>
  <w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"Grid Table 2 =
Accent 5"/>
  <w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"Grid Table 3 =
Accent 5"/>
  <w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"Grid Table 4 =
Accent 5"/>
  <w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"Grid Table 5 =
Dark Accent 5"/>
  <w:LsdException Locked=3D"false" Priority=3D"51"
   Name=3D"Grid Table 6 Colorful Accent 5"/>
  <w:LsdException Locked=3D"false" Priority=3D"52"
   Name=3D"Grid Table 7 Colorful Accent 5"/>
  <w:LsdException Locked=3D"false" Priority=3D"46"
   Name=3D"Grid Table 1 Light Accent 6"/>
  <w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"Grid Table 2 =
Accent 6"/>
  <w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"Grid Table 3 =
Accent 6"/>
  <w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"Grid Table 4 =
Accent 6"/>
  <w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"Grid Table 5 =
Dark Accent 6"/>
  <w:LsdException Locked=3D"false" Priority=3D"51"
   Name=3D"Grid Table 6 Colorful Accent 6"/>
  <w:LsdException Locked=3D"false" Priority=3D"52"
   Name=3D"Grid Table 7 Colorful Accent 6"/>
  <w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"List Table 1 =
Light"/>
  <w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"List Table =
2"/>
  <w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"List Table =
3"/>
  <w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"List Table =
4"/>
  <w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"List Table 5 =
Dark"/>
  <w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"List Table 6 =
Colorful"/>
  <w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"List Table 7 =
Colorful"/>
  <w:LsdException Locked=3D"false" Priority=3D"46"
   Name=3D"List Table 1 Light Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"List Table 2 =
Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"List Table 3 =
Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"List Table 4 =
Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"List Table 5 =
Dark Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"51"
   Name=3D"List Table 6 Colorful Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"52"
   Name=3D"List Table 7 Colorful Accent 1"/>
  <w:LsdException Locked=3D"false" Priority=3D"46"
   Name=3D"List Table 1 Light Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"List Table 2 =
Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"List Table 3 =
Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"List Table 4 =
Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"List Table 5 =
Dark Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"51"
   Name=3D"List Table 6 Colorful Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"52"
   Name=3D"List Table 7 Colorful Accent 2"/>
  <w:LsdException Locked=3D"false" Priority=3D"46"
   Name=3D"List Table 1 Light Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"List Table 2 =
Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"List Table 3 =
Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"List Table 4 =
Accent 3"/>
  <w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"List Table 5 =
Dark Accent 3"/>
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<!--StartFragment--><p class=3D"MsoPlainText"><span lang=3D"EN-US" =
class=3D"">I am not aware of any IPR other than the one already =
disclosed.</span></p><p class=3D"MsoPlainText">Thanks,</p><p =
class=3D"MsoPlainText"><span lang=3D"EN-US" =
class=3D"">Ahmed&nbsp;</span>&nbsp;</p><p class=3D"MsoPlainText"><a =
name=3D"_MailOriginal" class=3D""><span lang=3D"EN-US" class=3D"">=EF=BB=BF=
On 15/03/2019,
09:28, "Pablo Camarillo (pcamaril)" &lt;pcamaril@cisco.com&gt; =
wrote:<o:p class=3D""></o:p></span></a></p><p class=3D"MsoPlainText"><span=
 lang=3D"EN-US" class=3D"">&nbsp;</span></p><p =
class=3D"MsoPlainText"><span lang=3D"EN-US" class=3D"">&nbsp;&nbsp;&nbsp; =
Hi,<o:p class=3D""></o:p></span></p><p class=3D"MsoPlainText"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp;&nbsp;&nbsp; <o:p =
class=3D""></o:p></span></p><p class=3D"MsoPlainText"><span lang=3D"EN-US"=
 class=3D"">&nbsp;&nbsp;&nbsp; I am not aware of any IPR
other than the one already disclosed.<o:p class=3D""></o:p></span></p><p =
class=3D"MsoPlainText"><span lang=3D"EN-US" =
class=3D"">&nbsp;&nbsp;&nbsp;&nbsp; <o:p class=3D""></o:p></span></p><p =
class=3D"MsoPlainText"><span lang=3D"EN-US" class=3D"">&nbsp;&nbsp;&nbsp; =
Thanks,<o:p class=3D""></o:p></span></p><p class=3D"MsoPlainText"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp;&nbsp; Pablo<o:p =
class=3D""></o:p></span></p><p class=3D"MsoPlainText"><span lang=3D"EN-US"=
 class=3D"">&nbsp;&nbsp;&nbsp;&nbsp; <o:p class=3D""></o:p></span></p><p =
class=3D"MsoPlainText"><span lang=3D"EN-US" class=3D"">&nbsp;&nbsp;&nbsp; =
From:<o:p class=3D""></o:p></span></p><p class=3D"MsoPlainText"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp;&nbsp;
"<a href=3D"mailto:bruno.decraene@orange.com" =
class=3D"">bruno.decraene@orange.com</a>" &lt;<a =
href=3D"mailto:bruno.decraene@orange.com" =
class=3D"">bruno.decraene@orange.com</a>&gt;<o:p =
class=3D""></o:p></span></p><p class=3D"MsoPlainText"><span lang=3D"EN-US"=
 class=3D"">&nbsp;&nbsp;&nbsp; Date: Wednesday, 13 March
2019 at 19:50<o:p class=3D""></o:p></span></p><p =
class=3D"MsoPlainText"><span lang=3D"EN-US" class=3D"">&nbsp;&nbsp;&nbsp; =
To: SPRING WG
&lt;<a href=3D"mailto:spring@ietf.org" =
class=3D"">spring@ietf.org</a>&gt;<o:p class=3D""></o:p></span></p><p =
class=3D"MsoPlainText"><span lang=3D"EN-US" class=3D"">&nbsp;&nbsp;&nbsp; =
Cc:
"<a =
href=3D"mailto:draft-filsfils-spring-srv6-network-programming@ietf.org" =
class=3D"">draft-filsfils-spring-srv6-network-programming@ietf.org</a>"
&lt;<a =
href=3D"mailto:draft-filsfils-spring-srv6-network-programming@ietf.org" =
class=3D"">draft-filsfils-spring-srv6-network-programming@ietf.org</a>&gt;=
<o:p class=3D""></o:p></span></p><p class=3D"MsoPlainText"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp;&nbsp; Subject: IPR Poll for
draft-filsfils-spring-srv6-network-programming<o:p =
class=3D""></o:p></span></p><p class=3D"MsoPlainText"><span lang=3D"EN-US"=
 class=3D"">&nbsp;&nbsp;&nbsp; Resent-From:
&lt;<a href=3D"mailto:alias-bounces@ietf.org" =
class=3D"">alias-bounces@ietf.org</a>&gt;<o:p =
class=3D""></o:p></span></p><p class=3D"MsoPlainText"><span lang=3D"EN-US"=
 class=3D"">&nbsp;&nbsp;&nbsp; Resent-To:
&lt;<a href=3D"mailto:cf@cisco.com" class=3D"">cf@cisco.com</a>&gt;, =
&lt;<a href=3D"mailto:pcamaril@cisco.com" =
class=3D"">pcamaril@cisco.com</a>&gt;,
&lt;<a href=3D"mailto:john_leddy@cable.comcast.com" =
class=3D"">john_leddy@cable.comcast.com</a>&gt;, &lt;<a =
href=3D"mailto:daniel.voyer@bell.ca" =
class=3D"">daniel.voyer@bell.ca</a>&gt;,
&lt;<a href=3D"mailto:satoru.matsushima@g.softbank.co.jp" =
class=3D"">satoru.matsushima@g.softbank.co.jp</a>&gt;, &lt;<a =
href=3D"mailto:lizhenbin@huawei.com" =
class=3D"">lizhenbin@huawei.com</a>&gt;<o:p class=3D""></o:p></span></p><p=
 class=3D"MsoPlainText"><span lang=3D"EN-US" class=3D"">&nbsp;&nbsp;&nbsp;=
 Resent-Date: Wednesday, 13
March 2019 at 19:50<o:p class=3D""></o:p></span></p><p =
class=3D"MsoPlainText"><span lang=3D"EN-US" class=3D"">&nbsp;&nbsp;&nbsp; =
<o:p class=3D""></o:p></span></p><p class=3D"MsoPlainText"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp;&nbsp;&nbsp; <o:p =
class=3D""></o:p></span></p><p class=3D"MsoPlainText"><span lang=3D"EN-US"=
 class=3D"">&nbsp;&nbsp;&nbsp; <o:p class=3D""></o:p></span></p><p =
class=3D"MsoPlainText"><span lang=3D"EN-US" class=3D"">&nbsp;&nbsp;&nbsp; =
Hi authors, SPRING WG, In
parallel to the call for adoption for
draft-filsfils-spring-srv6-network-programming (1), we would like to =
poll for
IPR. If you are aware of IPR that applies to
draft-filsfils-spring-srv6-network-programming 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.If you are not an =
author
or contributor, please explicitly respond only if you are aware of IPR =
that has
not yet been disclosed. This document will not advance into the working =
group
until IPR confirmations have been received from all authors and =
contributors.
Thank you, (1)&nbsp; <a =
href=3D"https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-pro=
gramming-07" =
class=3D"">https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-=
programming-07</a>&nbsp; --Bruno &amp; Rob. <o:p =
class=3D""></o:p></span></p><p class=3D"MsoPlainText"><span lang=3D"EN-US"=
 class=3D"">&nbsp;&nbsp;&nbsp;
=
__________________________________________________________________________=
_______________________________________________
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falsified.Thank you.<o:p class=3D""></o:p></span></p><p =
class=3D"MsoPlainText"><span lang=3D"EN-US" class=3D"">&nbsp; =
&nbsp;&nbsp;</span><span lang=3D"EN-US" class=3D""><o:p =
class=3D""></o:p></span></p>

<!--EndFragment--></body></html>=

--Apple-Mail=_875DC56E-01C4-4806-80D6-46F87D1E689B--


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From: "Francois Clad (fclad)" <fclad@cisco.com>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
CC: "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
Thread-Topic: [spring] IPR Poll for draft-filsfils-spring-srv6-network-programming
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From: "Voyer, Daniel" <daniel.voyer@bell.ca>
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From: Matsushima Satoru <satoru.matsushima@g.softbank.co.jp>
Date: Fri, 15 Mar 2019 22:37:26 +0900
Message-ID: <CALhWPs++0bjm5EyYwf-G8yKeqL0-FNLjbGjAskWSC3msWnzPzw@mail.gmail.com>
To: Bruno Decraene <bruno.decraene@orange.com>
Cc: SPRING WG <spring@ietf.org>,  "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
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Subject: Re: [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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Support the adoption.

Cheers,
--satoru

On Thu, Mar 14, 2019 at 3:49 AM <bruno.decraene@orange.com> wrote:

> Hi SPRING WG,
>
>
>
> This email initiates a three week call for working group adoption for draft-filsfils-spring-srv6-network-programming. (Three weeks to account for the IETF week)
>
>
>
> Please indicate your support, comments, or objection, for adopting this draft as a working group item by April, 3rd, 2019 (aka 2019-04-03)
>
> We are particularly interested in hearing from working group members that are not co-authors of this draft.
>
>
>
> We are also looking for volunteers who would be ready to perform a technical review of this work at some later stage, such as before or during WG the last call.
>
>
>
> In parallel to this adoption call, I will send an IPR call for this document. We will need all authors and contributors to confirm their IPR position on this document.
>
> There is currently 1 IPR filled (2)
>
>
>
> (1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-07
>
> (2)  https://datatracker.ietf.org/ipr/search/?id=draft-filsfils-spring-srv6-network-programming&submit=draft
>
>
>
>
>
> Thank you,
>
> --Bruno & Rob.
>
>
>
> _________________________________________________________________________________________________________________________
>
> 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,
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>
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> 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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<div dir=3D"ltr"><div dir=3D"ltr"><div class=3D"gmail_default" style=3D"fon=
t-family:arial,helvetica,sans-serif">Support the adoption.</div><div class=
=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif"><br></d=
iv><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-s=
erif">Cheers,</div><div class=3D"gmail_default" style=3D"font-family:arial,=
helvetica,sans-serif">--satoru</div></div><br><div class=3D"gmail_quote"><d=
iv dir=3D"ltr" class=3D"gmail_attr">On Thu, Mar 14, 2019 at 3:49 AM &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:0px 0px =
0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">







<div lang=3D"FR">
<div class=3D"gmail-m_4271613958772069822WordSection1">
<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 email initiates a three week call for workin=
g group adoption for draft-filsfils-spring-srv6-network-programming. (Three=
 weeks to account for the IETF week)<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 indicate your support, comments, or object=
ion, for adopting this draft as a working group item by April, 3<sup>rd</su=
p>, 2019 (aka 2019-04-03)<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US">We are particularly interested in hearing from wo=
rking group members that are not co-authors of this draft.<u></u><u></u></s=
pan></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre><span lang=3D"EN-US">We are also looking for volunteers who would be r=
eady to perform a technical review of this work at some later stage, such a=
s before or during WG the last call.<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 to this adoption call, I will send an=
 IPR call for this document. We will need all authors and contributors to c=
onfirm their IPR position on this document.<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US">There is currently 1 IPR filled (2)<u></u><u></u>=
</span></pre>
<pre><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></pre>
<pre style=3D"margin-left:42pt"><u></u><span lang=3D"EN-US"><span>(1)<span =
style=3D"font:7pt &quot;Times New Roman&quot;">=C2=A0 </span></span></span>=
<u></u><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draft-fi=
lsfils-spring-srv6-network-programming-07" target=3D"_blank">https://tools.=
ietf.org/html/draft-filsfils-spring-srv6-network-programming-07</a><u></u><=
u></u></span></pre>
<pre style=3D"margin-left:42pt"><u></u><span lang=3D"EN-US"><span>(2)<span =
style=3D"font:7pt &quot;Times New Roman&quot;">=C2=A0 </span></span></span>=
<u></u><span lang=3D"EN-US"><a href=3D"https://datatracker.ietf.org/ipr/sea=
rch/?id=3Ddraft-filsfils-spring-srv6-network-programming&amp;submit=3Ddraft=
" target=3D"_blank">https://datatracker.ietf.org/ipr/search/?id=3Ddraft-fil=
sfils-spring-srv6-network-programming&amp;submit=3Ddraft</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"><u></u>=C2=A0<u></u></span></pre>
<pre><span class=3D"gmail-m_4271613958772069822SpellE">Thank</span> <span c=
lass=3D"gmail-m_4271613958772069822SpellE">you</span>,<u></u><u></u></pre>
<pre>--Bruno &amp; Rob.<u></u><u></u></pre>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<pre>______________________________________________________________________=
___________________________________________________

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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>

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

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From: Matsushima Satoru <satoru.matsushima@g.softbank.co.jp>
Date: Fri, 15 Mar 2019 22:39:39 +0900
Message-ID: <CALhWPsLSCvSucS6AKwv+NqpU6MJLn1zYemk3DxOcCDZ6KATVgw@mail.gmail.com>
To: Bruno Decraene <bruno.decraene@orange.com>
Cc: SPRING WG <spring@ietf.org>,  "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
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Subject: Re: [spring] IPR Poll for draft-filsfils-spring-srv6-network-programming
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I'm not aware of IPR that applies to the draft.

Cheers,
--satoru

On Thu, Mar 14, 2019 at 3:50 AM <bruno.decraene@orange.com> wrote:

> Hi authors, SPRING WG,
>
>
>
> In parallel to the call for adoption for draft-filsfils-spring-srv6-network-programming (1), we would like to poll for IPR.
>
>
>
> If you are aware of IPR that applies to draft-filsfils-spring-srv6-network-programming 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.
>
> If you are not an author or contributor, please explicitly respond only if you are aware of IPR that has not yet been disclosed.
>
>
>
> This document will not advance into the working group until IPR confirmations have been received from all authors and contributors.
>
>
>
> Thank you,
>
>
>
> (1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-07
>
>
>
>
>
> --Bruno & Rob.
>
>
>
> _________________________________________________________________________________________________________________________
>
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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 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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>

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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:arial,he=
lvetica,sans-serif">I&#39;m not aware of IPR that applies to the draft.</di=
v><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-se=
rif"><br></div><div class=3D"gmail_default" style=3D"font-family:arial,helv=
etica,sans-serif">Cheers,</div><div class=3D"gmail_default" style=3D"font-f=
amily:arial,helvetica,sans-serif">--satoru</div></div><br><div class=3D"gma=
il_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, Mar 14, 2019 at 3:5=
0 AM &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"mar=
gin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1=
ex">







<div lang=3D"FR">
<div class=3D"gmail-m_6682333906043189052WordSection1">
<pre><span lang=3D"EN-US">Hi authors, 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">In parallel to the call for adoption for draft-fi=
lsfils-spring-srv6-network-programming (1), we would like to poll for IPR.<=
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 aware of IPR that applies to draft-fil=
sfils-spring-srv6-network-programming please respond to this email.<u></u><=
u></u></span></pre>
<pre><span lang=3D"EN-US">If you are aware of IPR, please indicate whether =
it has been disclosed in accordance with IETF IPR rules (RFCs 3979, 4879, 3=
669 and 5378 provide more details).<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 an *author or contributor* please resp=
ond to this email regardless of whether or not you&#39;re aware of any IPR.=
<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US">If you are not an author or contributor, please e=
xplicitly respond only if you are aware of IPR that has not yet been disclo=
sed.<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 document will not advance into the working g=
roup until IPR confirmations have been received from all authors and contri=
butors.<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"><u></u>=C2=A0<u></u></span></pre>
<pre style=3D"margin-left:24pt"><u></u><span lang=3D"EN-US"><span>(1)<span =
style=3D"font:7pt &quot;Times New Roman&quot;">=C2=A0 </span></span></span>=
<u></u><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draft-fi=
lsfils-spring-srv6-network-programming-07" target=3D"_blank">https://tools.=
ietf.org/html/draft-filsfils-spring-srv6-network-programming-07</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"><u></u>=C2=A0<u></u></span></pre>
<pre>--Bruno &amp; Rob.<u></u><u></u></pre>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<pre>______________________________________________________________________=
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</blockquote></div>

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From: "Andrew G. Malis" <agmalis@gmail.com>
Date: Fri, 15 Mar 2019 09:57:53 -0400
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To: Gaurav Dawra <gdawra.ietf@gmail.com>
Cc: "Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com>, "spring-chairs@ietf.org" <spring-chairs@ietf.org>,  "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>,  IETF Secretariat <ietf-secretariat-reply@ietf.org>, "spring@ietf.org" <spring@ietf.org>
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Subject: Re: [spring] The SPRING WG has placed draft-filsfils-spring-srv6-network-programming in state "Call For Adoption By WG Issued"
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Yes/support.

Cheers,
Andy


On Wed, Mar 13, 2019 at 6:27 PM Gaurav Dawra <gdawra.ietf@gmail.com> wrote:

> Support.
>
> Gaurav
>
> Sent from my iPhone
>
> > On Mar 13, 2019, at 1:23 PM, Nagendra Kumar Nainar (naikumar) <
> naikumar@cisco.com> wrote:
> >
> > Support.
> >
> > Regards,
> > Nagendra
> >
> > =EF=BB=BFOn 3/13/19, 3:31 PM, "spring on behalf of IETF Secretariat" <
> spring-bounces@ietf.org on behalf of ietf-secretariat-reply@ietf.org>
> wrote:
> >
> >
> >    The SPRING WG has placed
> draft-filsfils-spring-srv6-network-programming in
> >    state Call For Adoption By WG Issued (entered by Bruno Decraene)
> >
> >    The document is available at
> >
> https://datatracker.ietf.org/doc/draft-filsfils-spring-srv6-network-progr=
amming/
> >
> >    Comment:
> >    IPR call:
> >
> https://mailarchive.ietf.org/arch/msg/spring/ewznLZ_nIkkLyeOL76QU7ENr6Fs
> >
> >    Adoption call:
> >
> https://mailarchive.ietf.org/arch/msg/spring/Fr8RtiWt-tLjHtWnhPkhCAPmesM
> >
> >    _______________________________________________
> >    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
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

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<div dir=3D"ltr">Yes/support.<div><br></div><div>Cheers,</div><div>Andy</di=
v><div><br></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" clas=
s=3D"gmail_attr">On Wed, Mar 13, 2019 at 6:27 PM Gaurav Dawra &lt;<a href=
=3D"mailto:gdawra.ietf@gmail.com">gdawra.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">Support.<br>
<br>
Gaurav<br>
<br>
Sent from my iPhone<br>
<br>
&gt; On Mar 13, 2019, at 1:23 PM, Nagendra Kumar Nainar (naikumar) &lt;<a h=
ref=3D"mailto:naikumar@cisco.com" target=3D"_blank">naikumar@cisco.com</a>&=
gt; wrote:<br>
&gt; <br>
&gt; Support.<br>
&gt; <br>
&gt; Regards,<br>
&gt; Nagendra<br>
&gt; <br>
&gt; =EF=BB=BFOn 3/13/19, 3:31 PM, &quot;spring on behalf of IETF Secretari=
at&quot; &lt;<a href=3D"mailto:spring-bounces@ietf.org" target=3D"_blank">s=
pring-bounces@ietf.org</a> on behalf of <a href=3D"mailto:ietf-secretariat-=
reply@ietf.org" target=3D"_blank">ietf-secretariat-reply@ietf.org</a>&gt; w=
rote:<br>
&gt; <br>
&gt; <br>
&gt;=C2=A0 =C2=A0 The SPRING WG has placed draft-filsfils-spring-srv6-netwo=
rk-programming in<br>
&gt;=C2=A0 =C2=A0 state Call For Adoption By WG Issued (entered by Bruno De=
craene)<br>
&gt; <br>
&gt;=C2=A0 =C2=A0 The document is available at<br>
&gt;=C2=A0 =C2=A0 <a href=3D"https://datatracker.ietf.org/doc/draft-filsfil=
s-spring-srv6-network-programming/" rel=3D"noreferrer" target=3D"_blank">ht=
tps://datatracker.ietf.org/doc/draft-filsfils-spring-srv6-network-programmi=
ng/</a><br>
&gt; <br>
&gt;=C2=A0 =C2=A0 Comment:<br>
&gt;=C2=A0 =C2=A0 IPR call:<br>
&gt;=C2=A0 =C2=A0 <a href=3D"https://mailarchive.ietf.org/arch/msg/spring/e=
wznLZ_nIkkLyeOL76QU7ENr6Fs" rel=3D"noreferrer" target=3D"_blank">https://ma=
ilarchive.ietf.org/arch/msg/spring/ewznLZ_nIkkLyeOL76QU7ENr6Fs</a><br>
&gt; <br>
&gt;=C2=A0 =C2=A0 Adoption call:<br>
&gt;=C2=A0 =C2=A0 <a href=3D"https://mailarchive.ietf.org/arch/msg/spring/F=
r8RtiWt-tLjHtWnhPkhCAPmesM" rel=3D"noreferrer" target=3D"_blank">https://ma=
ilarchive.ietf.org/arch/msg/spring/Fr8RtiWt-tLjHtWnhPkhCAPmesM</a><br>
&gt; <br>
&gt;=C2=A0 =C2=A0 _______________________________________________<br>
&gt;=C2=A0 =C2=A0 spring mailing list<br>
&gt;=C2=A0 =C2=A0 <a href=3D"mailto:spring@ietf.org" target=3D"_blank">spri=
ng@ietf.org</a><br>
&gt;=C2=A0 =C2=A0 <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>
&gt; <br>
&gt; <br>
&gt; _______________________________________________<br>
&gt; spring mailing list<br>
&gt; <a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</=
a><br>
&gt; <a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"norefe=
rrer" target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><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: "Patrice Brissette (pbrisset)" <pbrisset@cisco.com>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
CC: "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
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Subject: Re: [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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From: <bruno.decraene@orange.com>
To: SPRING WG <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: IETF 104 - SPRING meeting
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Hi SPRING WG,
=20
The agenda for the SPRING working group session at IETF 104 has been upload=
ed to=20
https://datatracker.ietf.org/meeting/104/materials/agenda-104-spring-00

We were oversubscribed for this session.
Whether your draft made it to the agenda or not, you are invited to introdu=
ce your draft/update to the mailing list.

Please send your slides to both chairs before Tuesday, March 26, 13:00 loca=
l time. Earlier is better. Sending PDF is usually better (than the automati=
c conversion).
A checklist is available on the wiki: https://trac.ietf.org/trac/spring/wik=
i/Checklist%20for%20presenting%20at%20a%20SPRING%20meeting

Thank you,

See you in Prague.
--Rob, Bruno

-----Original Message-----
From: spring [mailto:spring-bounces@ietf.org] On Behalf Of bruno.decraene@o=
range.com
Sent: Monday, March 4, 2019 5:55 PM
To: SPRING WG
Cc: spring-chairs@ietf.org
Subject: [spring] IETF 104 - SPRING meeting

Hi WG,

For IETF 104, the SPRING WG is currently scheduled to meet Thursday, March =
28, 13:50-15:50. We have a two hours session.
https://datatracker.ietf.org/meeting/104/agenda.html

It is time to start building the SPRING WG agenda.

Please send to chairs your request for a presentation slot, indicating draf=
t name, speaker, and desired duration (covering presentation and discussion=
), before Monday 2019-03-11 COB. Before is better.

If it is the first presentation of a non-WG draft, please first introduce y=
our draft on the mailing list.
Otherwise, please give a reason why it is required to have a new presentati=
on slot.

A checklist is available on the wiki: https://trac.ietf.org/trac/spring/wik=
i/Checklist%20for%20presenting%20at%20a%20SPRING%20meeting

Please send your slides before Tuesday, March 26, 13:00 local time. Earlier=
 is better.

Thank you,

--Bruno, Rob


___________________________________________________________________________=
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From nobody Fri Mar 15 11:03:35 2019
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From: Linda Dunbar <linda.dunbar@huawei.com>
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Bruno,=20

Sorry for the late request, possible to add 5 minutes for the update to the=
 following draft?=20

https://datatracker.ietf.org/doc/draft-dunbar-sr-sdwan-over-hybrid-networks=
/

Thank you,=20

Linda Dunbar

-----Original Message-----
From: spring [mailto:spring-bounces@ietf.org] On Behalf Of bruno.decraene@o=
range.com
Sent: Friday, March 15, 2019 12:16 PM
To: SPRING WG <spring@ietf.org>
Cc: spring-chairs@ietf.org
Subject: Re: [spring] IETF 104 - SPRING meeting

Hi SPRING WG,
=20
The agenda for the SPRING working group session at IETF 104 has been upload=
ed to
https://datatracker.ietf.org/meeting/104/materials/agenda-104-spring-00

We were oversubscribed for this session.
Whether your draft made it to the agenda or not, you are invited to introdu=
ce your draft/update to the mailing list.

Please send your slides to both chairs before Tuesday, March 26, 13:00 loca=
l time. Earlier is better. Sending PDF is usually better (than the automati=
c conversion).
A checklist is available on the wiki: https://trac.ietf.org/trac/spring/wik=
i/Checklist%20for%20presenting%20at%20a%20SPRING%20meeting

Thank you,

See you in Prague.
--Rob, Bruno

-----Original Message-----
From: spring [mailto:spring-bounces@ietf.org] On Behalf Of bruno.decraene@o=
range.com
Sent: Monday, March 4, 2019 5:55 PM
To: SPRING WG
Cc: spring-chairs@ietf.org
Subject: [spring] IETF 104 - SPRING meeting

Hi WG,

For IETF 104, the SPRING WG is currently scheduled to meet Thursday, March =
28, 13:50-15:50. We have a two hours session.
https://datatracker.ietf.org/meeting/104/agenda.html

It is time to start building the SPRING WG agenda.

Please send to chairs your request for a presentation slot, indicating draf=
t name, speaker, and desired duration (covering presentation and discussion=
), before Monday 2019-03-11 COB. Before is better.

If it is the first presentation of a non-WG draft, please first introduce y=
our draft on the mailing list.
Otherwise, please give a reason why it is required to have a new presentati=
on slot.

A checklist is available on the wiki: https://trac.ietf.org/trac/spring/wik=
i/Checklist%20for%20presenting%20at%20a%20SPRING%20meeting

Please send your slides before Tuesday, March 26, 13:00 local time. Earlier=
 is better.

Thank you,

--Bruno, Rob


___________________________________________________________________________=
______________________________________________

Ce message et ses pieces jointes peuvent contenir des informations confiden=
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copies sans autorisation. Si vous avez recu ce message par erreur, veuillez=
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s messages electroniques etant susceptibles d'alteration, Orange decline to=
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___________________________________________________________________________=
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Ce message et ses pieces jointes peuvent contenir des informations confiden=
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Subject: Re: [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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Thanks for this poll, Bruno,

 

Before taking up work on this draft, would it be worth working with 6man to
check that the repurposing of IPv6 addresses would be unlikely to cause a
great fight? It would probably be better to not have two WGs fighting.

 

And, in case someone is confused by my comments, RFC 4291 has.

 

   IPv6 addresses are 128-bit identifiers for interfaces and sets of

   interfaces (where "interface" is as defined in Section 2 of [IPV6]).

 

And RFC 8200 has.

 

      interface    a node's attachment to a link.

 

and

 

      Destination Address 128-bit address of the intended recipient of

                          the packet (possibly not the ultimate

                          recipient, if a Routing header is present).

                          See [RFC4291] and Section 4.4.

 

Now, it is possible that everyone will say "Yeah, go ahead." Or they may
say, "You can only do this if you're also updating 4291 and 8200." Or, of
course, they may also say, "Whoa, it would be a really big step to address a
function or an instruction or something other than an interface,
notwithstanding that they are routable."

 

I'm not prejudging what answer we might get, but think it would be worth
asking.

 

Best,

Adrian

 

 

From: spring <spring-bounces@ietf.org> On Behalf Of
bruno.decraene@orange.com
Sent: 13 March 2019 18:50
To: SPRING WG <spring@ietf.org>
Cc: draft-filsfils-spring-srv6-network-programming@ietf.org
Subject: [spring] Working Group Adoption Call for
draft-filsfils-spring-srv6-network-programming

 

Hi SPRING WG,
 
This email initiates a three week call for working group adoption for
draft-filsfils-spring-srv6-network-programming. (Three weeks to account for
the IETF week)
 
Please indicate your support, comments, or objection, for adopting this
draft as a working group item by April, 3rd, 2019 (aka 2019-04-03)
We are particularly interested in hearing from working group members that
are not co-authors of this draft.
 
We are also looking for volunteers who would be ready to perform a technical
review of this work at some later stage, such as before or during WG the
last call.
 
In parallel to this adoption call, I will send an IPR call for this
document. We will need all authors and contributors to confirm their IPR
position on this document.
There is currently 1 IPR filled (2)
 
(1)
https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-0
7
(2)
https://datatracker.ietf.org/ipr/search/?id=draft-filsfils-spring-srv6-netwo
rk-programming
<https://datatracker.ietf.org/ipr/search/?id=draft-filsfils-spring-srv6-netw
ork-programming&submit=draft> &submit=draft
 
 
Thank you,
--Bruno & Rob.

 

____________________________________________________________________________
_____________________________________________
 
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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal>Thanks for =
this poll, Bruno,<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Before =
taking up work on this draft, would it be worth working with 6man to =
check that the repurposing of IPv6 addresses would be unlikely to cause =
a great fight? It would probably be better to not have two WGs =
fighting.<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>And, in case someone is confused by my comments, RFC =
4291 has&#8230;<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>&nbsp;&nbsp; =
IPv6 addresses are 128-bit identifiers for interfaces and sets =
of<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp; interfaces (where =
&quot;interface&quot; is as defined in Section 2 of =
[IPV6]).<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>And RFC 8200 has&#8230;<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
interface&nbsp;&nbsp;&nbsp; a node's attachment to a =
link.<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>and<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Destination Address =
128-bit address of the intended recipient of<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;the =
packet (possibly not the ultimate<o:p></o:p></p><p =
class=3DMsoNormal>&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; recipient, if a Routing header is =
present).<o:p></o:p></p><p =
class=3DMsoNormal>&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; See [RFC4291] and Section 4.4.<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Now, it is =
possible that everyone will say &#8220;Yeah, go ahead.&#8221; Or they =
may say, &#8220;You can only do this if you&#8217;re also updating 4291 =
and 8200.&#8221; Or, of course, they may also say, &#8220;Whoa, it would =
be a really big step to address a function or an instruction or =
something other than an interface, notwithstanding that they are =
routable.&#8221;<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>I&#8217;m =
not prejudging what answer we might get, but think it would be worth =
asking.<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Best,<o:p></o:p></p><p =
class=3DMsoNormal>Adrian<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><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=3DMsoNormal><b><span lang=3DEN-US =
style=3D'mso-fareast-language:EN-GB'>From:</span></b><span lang=3DEN-US =
style=3D'mso-fareast-language:EN-GB'> spring =
&lt;spring-bounces@ietf.org&gt; <b>On Behalf Of =
</b>bruno.decraene@orange.com<br><b>Sent:</b> 13 March 2019 =
18:50<br><b>To:</b> SPRING WG &lt;spring@ietf.org&gt;<br><b>Cc:</b> =
draft-filsfils-spring-srv6-network-programming@ietf.org<br><b>Subject:</b=
> [spring] Working Group Adoption Call for =
draft-filsfils-spring-srv6-network-programming<o:p></o:p></span></p></div=
></div><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><pre><span =
lang=3DEN-US>Hi SPRING WG,<o:p></o:p></span></pre><pre><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></pre><pre><span lang=3DEN-US>This =
email initiates a three week call for working group adoption for =
draft-filsfils-spring-srv6-network-programming. (Three weeks to account =
for the IETF week)<o:p></o:p></span></pre><pre><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></pre><pre><span =
lang=3DEN-US>Please indicate your support, comments, or objection, for =
adopting this draft as a working group item by April, 3<sup>rd</sup>, =
2019 (aka 2019-04-03)<o:p></o:p></span></pre><pre><span lang=3DEN-US>We =
are particularly interested in hearing from working group members that =
are not co-authors of this draft.<o:p></o:p></span></pre><pre><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></pre><pre><span lang=3DEN-US>We =
are also looking for volunteers who would be ready to perform a =
technical review of this work at some later stage, such as before or =
during WG the last call.<o:p></o:p></span></pre><pre><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></pre><pre><span lang=3DEN-US>In =
parallel to this adoption call, I will send an IPR call for this =
document. We will need all authors and contributors to confirm their IPR =
position on this document.<o:p></o:p></span></pre><pre><span =
lang=3DEN-US>There is currently 1 IPR filled =
(2)<o:p></o:p></span></pre><pre><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></pre><pre =
style=3D'margin-left:42.0pt;text-indent:-24.0pt;mso-list:l0 level1 =
lfo2'><![if !supportLists]><span lang=3DEN-US><span =
style=3D'mso-list:Ignore'>(1)<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp; </span></span></span><![endif]><span lang=3DEN-US><a =
href=3D"https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-pr=
ogramming-07">https://tools.ietf.org/html/draft-filsfils-spring-srv6-netw=
ork-programming-07</a><o:p></o:p></span></pre><pre =
style=3D'margin-left:42.0pt;text-indent:-24.0pt;mso-list:l0 level1 =
lfo2'><![if !supportLists]><span lang=3DEN-US><span =
style=3D'mso-list:Ignore'>(2)<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp; </span></span></span><![endif]><span lang=3DEN-US><a =
href=3D"https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spri=
ng-srv6-network-programming&amp;submit=3Ddraft">https://datatracker.ietf.=
org/ipr/search/?id=3Ddraft-filsfils-spring-srv6-network-programming&amp;s=
ubmit=3Ddraft</a><o:p></o:p></span></pre><pre><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></pre><pre><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></pre><pre><span lang=3DFR>Thank =
you,<o:p></o:p></span></pre><pre><span lang=3DFR>--Bruno &amp; =
Rob.<o:p></o:p></span></pre><p class=3DMsoNormal><span =
lang=3DFR><o:p>&nbsp;</o:p></span></p><pre><span =
lang=3DFR>_______________________________________________________________=
__________________________________________________________<o:p></o:p></sp=
an></pre><pre><span lang=3DFR><o:p>&nbsp;</o:p></span></pre><pre><span =
lang=3DFR>Ce message et ses pieces jointes peuvent contenir des =
informations confidentielles ou privilegiees et ne doivent =
donc<o:p></o:p></span></pre><pre><span lang=3DFR>pas etre diffuses, =
exploites ou copies sans autorisation. Si vous avez recu ce message par =
erreur, veuillez le signaler<o:p></o:p></span></pre><pre><span =
lang=3DFR>a l'expediteur et le detruire ainsi que les pieces jointes. =
Les messages electroniques etant susceptibles =
d'alteration,<o:p></o:p></span></pre><pre><span lang=3DFR>Orange decline =
toute responsabilite si ce message a ete altere, deforme ou falsifie. =
Merci.<o:p></o:p></span></pre><pre><span =
lang=3DFR><o:p>&nbsp;</o:p></span></pre><pre><span lang=3DFR>This =
message and its attachments may contain confidential or privileged =
information that may be protected by =
law;<o:p></o:p></span></pre><pre><span lang=3DFR>they should not be =
distributed, used or copied without =
authorisation.<o:p></o:p></span></pre><pre><span lang=3DFR>If you have =
received this email in error, please notify the sender and delete this =
message and its attachments.<o:p></o:p></span></pre><pre><span =
lang=3DFR>As emails may be altered, Orange is not liable for messages =
that have been modified, changed or =
falsified.<o:p></o:p></span></pre><pre><span lang=3DFR>Thank =
you.<o:p></o:p></span></pre></div></body></html>
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From: Ron Bonica <rbonica@juniper.net>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
CC: "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
Thread-Topic: IPR Poll for draft-filsfils-spring-srv6-network-programming
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/fjrJv_d2wRoPQZ3lW_lkLJKd6jc>
Subject: Re: [spring] IPR Poll for draft-filsfils-spring-srv6-network-programming
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Bruno,

While I like many things about this draft, I don't think that it is ready f=
or adoption. Reasons follow:


  *   Section 4.1 appears to contradict Section 4.3.1 of draft-ietf-6man-se=
gment-routing-header. In particular, consider the behavior when Segments Le=
ft equals 0.
  *   Sections 4.13, 4.14. 4.21.1 and 4.21.2 appear to be in conflict with =
RFC 8200 [1] [2].
  *   The intent of section 4.19 is unclear.
  *   As Adrian points out, the draft extends the semantics of the IPv6 add=
ress. Such a decision may have wide-reaching impact, and should be socializ=
ed with a wider community (6man, INTAREA WG, V6OPS)
  *   The draft appears to be in conflict with draft-ietf-6man-segment-rout=
ing-header regarding how extension headers after the SRH are processed. Acc=
ording to draft-ietf-6man-segment-routing-header, subsequent extension head=
ers are processed out of order, potentially in conflict with RFC 8200. Acco=
rding to this draft, subsequent extension headers are ignored.


[1] According to RFC 8200, "Each extension header should occur at most once=
, except for the Destination Options header, which should occur at most twi=
ce (once before a Routing header and once before the upper-layer header)."



[2] According to RFC 8200, "extension headers must be processed strictly in=
 the order they appear  in the packet" . Sections 4.13 and 4.14 violate thi=
s rule by prepending an SRH before the SRH that is currently being processe=
d.




                                                                           =
                          Ron



From: spring <spring-bounces@ietf.org> On Behalf Of bruno.decraene@orange.c=
om
Sent: Wednesday, March 13, 2019 2:50 PM
To: SPRING WG <spring@ietf.org>
Cc: draft-filsfils-spring-srv6-network-programming@ietf.org
Subject: [spring] IPR Poll for draft-filsfils-spring-srv6-network-programmi=
ng


Hi authors, SPRING WG,



In parallel to the call for adoption for draft-filsfils-spring-srv6-network=
-programming (1), we would like to poll for IPR.



If you are aware of IPR that applies to draft-filsfils-spring-srv6-network-=
programming please respond to this email.

If you are aware of IPR, please indicate whether it has been disclosed in a=
ccordance 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.

If you are not an author or contributor, please explicitly respond only if =
you are aware of IPR that has not yet been disclosed.



This document will not advance into the working group until IPR confirmatio=
ns have been received from all authors and contributors.



Thank you,



(1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-program=
ming-07<https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__tools.ietf.o=
rg_html_draft-2Dfilsfils-2Dspring-2Dsrv6-2Dnetwork-2Dprogramming-2D07&d=3DD=
wMFAg&c=3DHAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=3DFch9FQ82sir-BoLx8=
4hKuKwl-AWF2EfpHcAwrDThKP8&m=3Dg5euhKG6OY3m1hMFewvX_AhsPNPcaeHrTSLS3oY3KoM&=
s=3D5KlDTs7QncIP0FnevaMhAHEIjoQLlCw9xVVUrR40dqY&e=3D>





--Bruno & Rob.


___________________________________________________________________________=
______________________________________________



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<body lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;color:#1F497D">Bruno=
,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;color:#1F497D"><o:p>=
&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;color:#1F497D">While=
 I like many things about this draft, I don&#8217;t think that it is ready =
for adoption. Reasons follow:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;color:#1F497D"><o:p>=
&nbsp;</o:p></span></p>
<ul style=3D"margin-top:0in" type=3D"disc">
<li class=3D"MsoListParagraph" style=3D"color:#1F497D;margin-left:0in;mso-l=
ist:l0 level1 lfo4">
<span style=3D"font-size:14.0pt">Section 4.1 appears to contradict Section =
4.3.1 of draft-ietf-6man-segment-routing-header. In particular, consider th=
e behavior when Segments Left equals 0.<o:p></o:p></span></li><li class=3D"=
MsoListParagraph" style=3D"color:#1F497D;margin-left:0in;mso-list:l0 level1=
 lfo4">
<span style=3D"font-size:14.0pt">Sections 4.13, 4.14. 4.21.1 and 4.21.2 app=
ear to be in conflict with RFC 8200 [1] [2].<o:p></o:p></span></li><li clas=
s=3D"MsoListParagraph" style=3D"color:#1F497D;margin-left:0in;mso-list:l0 l=
evel1 lfo4">
<span style=3D"font-size:14.0pt">The intent of section 4.19 is unclear.<o:p=
></o:p></span></li><li class=3D"MsoListParagraph" style=3D"color:#1F497D;ma=
rgin-left:0in;mso-list:l0 level1 lfo4">
<span style=3D"font-size:14.0pt">As Adrian points out, the draft extends th=
e semantics of the IPv6 address. Such a decision may have wide-reaching imp=
act, and should be socialized with a wider community (6man, INTAREA WG, V6O=
PS)<o:p></o:p></span></li><li class=3D"MsoListParagraph" style=3D"color:#1F=
497D;margin-left:0in;mso-list:l0 level1 lfo4">
<span style=3D"font-size:14.0pt">The draft appears to be in conflict with d=
raft-ietf-6man-segment-routing-header regarding how extension headers after=
 the SRH are processed. According to draft-ietf-6man-segment-routing-header=
, subsequent extension headers are
 processed out of order, potentially in conflict with RFC 8200. According t=
o this draft, subsequent extension headers are ignored.<o:p></o:p></span></=
li></ul>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;color:#1F497D"><o:p>=
&nbsp;</o:p></span></p>
<pre><span style=3D"font-size:14.0pt;font-family:&quot;Calibri&quot;,sans-s=
erif;color:#1F497D">[1] According to RFC 8200, &#8220;</span><span style=3D=
"font-size:14.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:black">E=
ach extension header should occur at most once, except for the Destination =
Options header, which should occur at most twice (once before a Routing hea=
der and once before the upper-layer header).&#8221;<o:p></o:p></span></pre>
<pre><span style=3D"font-size:14.0pt;font-family:&quot;Calibri&quot;,sans-s=
erif;color:black"><o:p>&nbsp;</o:p></span></pre>
<pre><span style=3D"font-size:14.0pt;font-family:&quot;Calibri&quot;,sans-s=
erif;color:#1F497D">[2] According to RFC 8200, &#8220;</span><span style=3D=
"font-size:14.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:black">e=
xtension headers must be processed strictly in the order they appear &nbsp;=
in the packet&#8221; </span><span style=3D"font-size:14.0pt;font-family:&qu=
ot;Calibri&quot;,sans-serif;color:#1F497D">. Sections 4.13 and 4.14 violate=
 this rule by prepending an SRH before the SRH that is currently being proc=
essed.</span><span style=3D"font-size:14.0pt;font-family:&quot;Calibri&quot=
;,sans-serif;color:black"><o:p></o:p></span></pre>
<pre><span style=3D"font-size:14.0pt;font-family:&quot;Calibri&quot;,sans-s=
erif;color:black"><o:p>&nbsp;</o:p></span></pre>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;color:#1F497D"><o:p>=
&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;color:#1F497D"><o:p>=
&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;color:#1F497D">&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;&nbsp;&nbsp;&nbsp;&n=
bsp;&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:14.0pt;color:#1F497D"><o:p>=
&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;color:#1F497D"><o:p>=
&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;color:#1F497D"><o:p>=
&nbsp;</o:p></span></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in =
4.0pt">
<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> Wednesday, March 13, 2019 2:50 PM<br>
<b>To:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Cc:</b> draft-filsfils-spring-srv6-network-programming@ietf.org<br>
<b>Subject:</b> [spring] IPR Poll for draft-filsfils-spring-srv6-network-pr=
ogramming<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<pre>Hi authors, SPRING WG,<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>In parallel to the call for adoption for draft-filsfils-spring-srv6-ne=
twork-programming (1), we would like to poll for IPR.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>If you are aware of IPR that applies to draft-filsfils-spring-srv6-net=
work-programming please respond to this email.<o:p></o:p></pre>
<pre>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).<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>If you are an *author or contributor* please respond to this email reg=
ardless of whether or not you're aware of any IPR.<o:p></o:p></pre>
<pre>If you are not an author or contributor, please explicitly respond onl=
y if you are aware of IPR that has not yet been disclosed.<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre>This document will not advance into the working group until IPR confir=
mations have been received from all authors and contributors.<o:p></o:p></p=
re>
<pre><o:p>&nbsp;</o:p></pre>
<pre>Thank you,<o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre style=3D"margin-left:24.0pt;text-indent:-24.0pt;mso-list:l1 level1 lfo=
2"><![if !supportLists]><span style=3D"mso-list:Ignore">(1)<span style=3D"f=
ont:7.0pt &quot;Times New Roman&quot;">&nbsp; </span></span><![endif]><a hr=
ef=3D"https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__tools.ietf.org=
_html_draft-2Dfilsfils-2Dspring-2Dsrv6-2Dnetwork-2Dprogramming-2D07&amp;d=
=3DDwMFAg&amp;c=3DHAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&amp;r=3DFch9F=
Q82sir-BoLx84hKuKwl-AWF2EfpHcAwrDThKP8&amp;m=3Dg5euhKG6OY3m1hMFewvX_AhsPNPc=
aeHrTSLS3oY3KoM&amp;s=3D5KlDTs7QncIP0FnevaMhAHEIjoQLlCw9xVVUrR40dqY&amp;e=
=3D">https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-program=
ming-07</a><o:p></o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre><o:p>&nbsp;</o:p></pre>
<pre><span lang=3D"FR">--Bruno &amp; Rob.<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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References: <32033_1552503001_5C8950D8_32033_150_1_53C29892C857584299CBF5D05346208A48A187A7@OPEXCAUBM43.corporate.adroot.infra.ftgroup> <BYAPR05MB4245308BEE2AE2690CA16C2AAE460@BYAPR05MB4245.namprd05.prod.outlook.com>
In-Reply-To: <BYAPR05MB4245308BEE2AE2690CA16C2AAE460@BYAPR05MB4245.namprd05.prod.outlook.com>
From: Robert Raszuk <rraszuk@gmail.com>
Date: Sun, 17 Mar 2019 22:17:39 +0100
Message-ID: <CA+b+ERmHWVWmiHn7EMSOGigUR9zB_F48aR3udr09fW+zNXj4qw@mail.gmail.com>
To: Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>
Cc: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>,  "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/bUQe-PshNK09v4lrk_EMXQHVVEA>
Subject: Re: [spring] IPR Poll for draft-filsfils-spring-srv6-network-programming
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Dear Ron,

While authors may address your other questions allow me to express an
opinion regarding your observation:

"conflict with RFC 8200 [1] [2]"

As written today RFC 8200 provides rules for insertion and handling of
those extension headers which are enumerated in said RFC and are listed in
IANA IPv6 Extension Header Types registry. SRH is not part of either of
those lists.

It also has been communicated very clearly by 6man chairs and ADs when
RFC8200 was proceeding that any future document can update it when it
defines new types of extension headers therefor I find your reasoning of
"conflict" quite bizarre.

Kind regards,
R.


On Sun, Mar 17, 2019 at 9:52 PM Ron Bonica <rbonica=3D
40juniper.net@dmarc.ietf.org> wrote:

> Bruno,
>
>
>
> While I like many things about this draft, I don=E2=80=99t think that it =
is ready
> for adoption. Reasons follow:
>
>
>
>    - Section 4.1 appears to contradict Section 4.3.1 of
>    draft-ietf-6man-segment-routing-header. In particular, consider the
>    behavior when Segments Left equals 0.
>    - Sections 4.13, 4.14. 4.21.1 and 4.21.2 appear to be in conflict with
>    RFC 8200 [1] [2].
>    - The intent of section 4.19 is unclear.
>    - As Adrian points out, the draft extends the semantics of the IPv6
>    address. Such a decision may have wide-reaching impact, and should be
>    socialized with a wider community (6man, INTAREA WG, V6OPS)
>    - The draft appears to be in conflict with
>    draft-ietf-6man-segment-routing-header regarding how extension headers
>    after the SRH are processed. According to
>    draft-ietf-6man-segment-routing-header, subsequent extension headers a=
re
>    processed out of order, potentially in conflict with RFC 8200. Accordi=
ng to
>    this draft, subsequent extension headers are ignored.
>
>
>
> [1] According to RFC 8200, =E2=80=9CEach extension header should occur at=
 most once, except for the Destination Options header, which should occur a=
t most twice (once before a Routing header and once before the upper-layer =
header).=E2=80=9D
>
>
>
> [2] According to RFC 8200, =E2=80=9Cextension headers must be processed s=
trictly in the order they appear  in the packet=E2=80=9D . Sections 4.13 an=
d 4.14 violate this rule by prepending an SRH before the SRH that is curren=
tly being processed.
>
>
>
>
>
>
>
>
> Ron
>
>
>
>
>
>
>
> *From:* spring <spring-bounces@ietf.org> *On Behalf Of *
> bruno.decraene@orange.com
> *Sent:* Wednesday, March 13, 2019 2:50 PM
> *To:* SPRING WG <spring@ietf.org>
> *Cc:* draft-filsfils-spring-srv6-network-programming@ietf.org
> *Subject:* [spring] IPR Poll for
> draft-filsfils-spring-srv6-network-programming
>
>
>
> Hi authors, SPRING WG,
>
>
>
> In parallel to the call for adoption for draft-filsfils-spring-srv6-netwo=
rk-programming (1), we would like to poll for IPR.
>
>
>
> If you are aware of IPR that applies to draft-filsfils-spring-srv6-networ=
k-programming 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 mor=
e details).
>
>
>
> If you are an *author or contributor* please respond to this email regard=
less of whether or not you're aware of any IPR.
>
> If you are not an author or contributor, please explicitly respond only i=
f you are aware of IPR that has not yet been disclosed.
>
>
>
> This document will not advance into the working group until IPR confirmat=
ions have been received from all authors and contributors.
>
>
>
> Thank you,
>
>
>
> (1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-progr=
amming-07 <https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__tools.iet=
f.org_html_draft-2Dfilsfils-2Dspring-2Dsrv6-2Dnetwork-2Dprogramming-2D07&d=
=3DDwMFAg&c=3DHAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=3DFch9FQ82sir-B=
oLx84hKuKwl-AWF2EfpHcAwrDThKP8&m=3Dg5euhKG6OY3m1hMFewvX_AhsPNPcaeHrTSLS3oY3=
KoM&s=3D5KlDTs7QncIP0FnevaMhAHEIjoQLlCw9xVVUrR40dqY&e=3D>
>
>
>
>
>
> --Bruno & Rob.
>
>
>
> _________________________________________________________________________=
________________________________________________
>
>
>
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entielles ou privilegiees et ne doivent donc
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>
> Orange decline toute responsabilite si ce message a ete altere, deforme o=
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>
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> _______________________________________________
> spring mailing list
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> https://www.ietf.org/mailman/listinfo/spring
>

--000000000000f1529a058450cd4b
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<div dir=3D"ltr"><div dir=3D"ltr"><div class=3D"gmail_default" style=3D"fon=
t-family:arial,helvetica,sans-serif;font-size:small">Dear Ron,</div><div cl=
ass=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;font-=
size:small"><br></div><div class=3D"gmail_default" style=3D"font-family:ari=
al,helvetica,sans-serif;font-size:small">While authors may address your oth=
er questions allow me to express an opinion regarding your observation:</di=
v><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-se=
rif;font-size:small"><br></div><div class=3D"gmail_default"><font face=3D"a=
rial, helvetica, sans-serif">&quot;conflict with RFC 8200 [1] [2]&quot;</fo=
nt><br></div><div class=3D"gmail_default"><font face=3D"arial, helvetica, s=
ans-serif"><br></font></div><div class=3D"gmail_default"><font face=3D"aria=
l, helvetica, sans-serif">As written today RFC 8200 provides rules for inse=
rtion and handling of those extension headers which are enumerated=C2=A0in =
said RFC and are listed in IANA IPv6 Extension Header Types registry. SRH i=
s not part of either of those lists.</font></div><div class=3D"gmail_defaul=
t"><font face=3D"arial, helvetica, sans-serif"><br></font></div><div class=
=3D"gmail_default"><font face=3D"arial, helvetica, sans-serif">It also has =
been communicated very clearly by 6man chairs and ADs when RFC8200 was proc=
eeding that any future document can update it when it defines new types of =
extension headers therefor I find your reasoning of &quot;conflict&quot; qu=
ite bizarre.=C2=A0</font></div><div class=3D"gmail_default"><font face=3D"a=
rial, helvetica, sans-serif"><br></font></div><div class=3D"gmail_default">=
<font face=3D"arial, helvetica, sans-serif">Kind regards,</font></div><div =
class=3D"gmail_default"><font face=3D"arial, helvetica, sans-serif">R.</fon=
t></div><div class=3D"gmail_default"><font face=3D"arial, helvetica, sans-s=
erif"><br></font></div></div></div><br><div class=3D"gmail_quote"><div dir=
=3D"ltr" class=3D"gmail_attr">On Sun, Mar 17, 2019 at 9:52 PM Ron Bonica &l=
t;rbonica=3D<a href=3D"mailto:40juniper.net@dmarc.ietf.org">40juniper.net@d=
marc.ietf.org</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" sty=
le=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);paddi=
ng-left:1ex">





<div lang=3D"EN-US">
<div class=3D"gmail-m_4222734554816443128WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;color:rgb(31,73,125)">=
Bruno,<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;color:rgb(31,73,125)">=
<u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;color:rgb(31,73,125)">=
While I like many things about this draft, I don=E2=80=99t think that it is=
 ready for adoption. Reasons follow:<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;color:rgb(31,73,125)">=
<u></u>=C2=A0<u></u></span></p>
<ul style=3D"margin-top:0in" type=3D"disc">
<li class=3D"gmail-m_4222734554816443128MsoListParagraph" style=3D"color:rg=
b(31,73,125);margin-left:0in">
<span style=3D"font-size:14pt">Section 4.1 appears to contradict Section 4.=
3.1 of draft-ietf-6man-segment-routing-header. In particular, consider the =
behavior when Segments Left equals 0.<u></u><u></u></span></li><li class=3D=
"gmail-m_4222734554816443128MsoListParagraph" style=3D"color:rgb(31,73,125)=
;margin-left:0in">
<span style=3D"font-size:14pt">Sections 4.13, 4.14. 4.21.1 and 4.21.2 appea=
r to be in conflict with RFC 8200 [1] [2].<u></u><u></u></span></li><li cla=
ss=3D"gmail-m_4222734554816443128MsoListParagraph" style=3D"color:rgb(31,73=
,125);margin-left:0in">
<span style=3D"font-size:14pt">The intent of section 4.19 is unclear.<u></u=
><u></u></span></li><li class=3D"gmail-m_4222734554816443128MsoListParagrap=
h" style=3D"color:rgb(31,73,125);margin-left:0in">
<span style=3D"font-size:14pt">As Adrian points out, the draft extends the =
semantics of the IPv6 address. Such a decision may have wide-reaching impac=
t, and should be socialized with a wider community (6man, INTAREA WG, V6OPS=
)<u></u><u></u></span></li><li class=3D"gmail-m_4222734554816443128MsoListP=
aragraph" style=3D"color:rgb(31,73,125);margin-left:0in">
<span style=3D"font-size:14pt">The draft appears to be in conflict with dra=
ft-ietf-6man-segment-routing-header regarding how extension headers after t=
he SRH are processed. According to draft-ietf-6man-segment-routing-header, =
subsequent extension headers are
 processed out of order, potentially in conflict with RFC 8200. According t=
o this draft, subsequent extension headers are ignored.<u></u><u></u></span=
></li></ul>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;color:rgb(31,73,125)">=
<u></u>=C2=A0<u></u></span></p>
<pre><span style=3D"font-size:14pt;font-family:Calibri,sans-serif;color:rgb=
(31,73,125)">[1] According to RFC 8200, =E2=80=9C</span><span style=3D"font=
-size:14pt;font-family:Calibri,sans-serif;color:black">Each extension heade=
r should occur at most once, except for the Destination Options header, whi=
ch should occur at most twice (once before a Routing header and once before=
 the upper-layer header).=E2=80=9D<u></u><u></u></span></pre>
<pre><span style=3D"font-size:14pt;font-family:Calibri,sans-serif;color:bla=
ck"><u></u>=C2=A0<u></u></span></pre>
<pre><span style=3D"font-size:14pt;font-family:Calibri,sans-serif;color:rgb=
(31,73,125)">[2] According to RFC 8200, =E2=80=9C</span><span style=3D"font=
-size:14pt;font-family:Calibri,sans-serif;color:black">extension headers mu=
st be processed strictly in the order they appear =C2=A0in the packet=E2=80=
=9D </span><span style=3D"font-size:14pt;font-family:Calibri,sans-serif;col=
or:rgb(31,73,125)">. Sections 4.13 and 4.14 violate this rule by prepending=
 an SRH before the SRH that is currently being processed.</span><span style=
=3D"font-size:14pt;font-family:Calibri,sans-serif;color:black"><u></u><u></=
u></span></pre>
<pre><span style=3D"font-size:14pt;font-family:Calibri,sans-serif;color:bla=
ck"><u></u>=C2=A0<u></u></span></pre>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;color:rgb(31,73,125)">=
<u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;color:rgb(31,73,125)">=
<u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;color:rgb(31,73,125)">=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=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></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;color:rgb(31,73,125)">=
<u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;color:rgb(31,73,125)">=
<u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;color:rgb(31,73,125)">=
<u></u>=C2=A0<u></u></span></p>
<div style=3D"border-top:none;border-right:none;border-bottom:none;border-l=
eft:1.5pt solid blue;padding:0in 0in 0in 4pt">
<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> 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><a href=3D"mailto:bruno.decraene@orange.com" target=3D"_blank">bruno.de=
craene@orange.com</a><br>
<b>Sent:</b> Wednesday, March 13, 2019 2:50 PM<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>Cc:</b> <a href=3D"mailto:draft-filsfils-spring-srv6-network-programming=
@ietf.org" target=3D"_blank">draft-filsfils-spring-srv6-network-programming=
@ietf.org</a><br>
<b>Subject:</b> [spring] IPR Poll for draft-filsfils-spring-srv6-network-pr=
ogramming<u></u><u></u></p>
</div>
</div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<pre>Hi authors, SPRING WG,<u></u><u></u></pre>
<pre><u></u>=C2=A0<u></u></pre>
<pre>In parallel to the call for adoption for draft-filsfils-spring-srv6-ne=
twork-programming (1), we would like to poll for IPR.<u></u><u></u></pre>
<pre><u></u>=C2=A0<u></u></pre>
<pre>If you are aware of IPR that applies to draft-filsfils-spring-srv6-net=
work-programming please respond to this email.<u></u><u></u></pre>
<pre>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).<u></u><u></u></pre>
<pre><u></u>=C2=A0<u></u></pre>
<pre>If you are an *author or contributor* please respond to this email reg=
ardless of whether or not you&#39;re aware of any IPR.<u></u><u></u></pre>
<pre>If you are not an author or contributor, please explicitly respond onl=
y if you are aware of IPR that has not yet been disclosed.<u></u><u></u></p=
re>
<pre><u></u>=C2=A0<u></u></pre>
<pre>This document will not advance into the working group until IPR confir=
mations have been received from all authors and contributors.<u></u><u></u>=
</pre>
<pre><u></u>=C2=A0<u></u></pre>
<pre>Thank you,<u></u><u></u></pre>
<pre><u></u>=C2=A0<u></u></pre>
<pre style=3D"margin-left:24pt"><u></u><span>(1)<span style=3D"font:7pt &qu=
ot;Times New Roman&quot;">=C2=A0 </span></span><u></u><a href=3D"https://ur=
ldefense.proofpoint.com/v2/url?u=3Dhttps-3A__tools.ietf.org_html_draft-2Dfi=
lsfils-2Dspring-2Dsrv6-2Dnetwork-2Dprogramming-2D07&amp;d=3DDwMFAg&amp;c=3D=
HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&amp;r=3DFch9FQ82sir-BoLx84hKuKw=
l-AWF2EfpHcAwrDThKP8&amp;m=3Dg5euhKG6OY3m1hMFewvX_AhsPNPcaeHrTSLS3oY3KoM&am=
p;s=3D5KlDTs7QncIP0FnevaMhAHEIjoQLlCw9xVVUrR40dqY&amp;e=3D" target=3D"_blan=
k">https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programmi=
ng-07</a><u></u><u></u></pre>
<pre><u></u>=C2=A0<u></u></pre>
<pre><u></u>=C2=A0<u></u></pre>
<pre><span lang=3D"FR">--Bruno &amp; Rob.<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>
</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>

--000000000000f1529a058450cd4b--


From nobody Mon Mar 18 00:44:32 2019
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To: Robert Raszuk <rraszuk@gmail.com>
Cc: Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>, SPRING WG <spring@ietf.org>, "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
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From: "Joel M. Halpern" <jmh@joelhalpern.com>
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Date: Mon, 18 Mar 2019 08:44:23 +0100
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/hr2tD2Ml_DUL2KiFq-ZW92xvY9M>
Subject: Re: [spring] IPR Poll for draft-filsfils-spring-srv6-network-programming
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Robert, your description of the conflict situation does not match my 
understanding.
A new rFC can always update existing RFCs.  However, it can't do so 
silently.  If this document wants to make a change to 8200's rules, it 
needs to say so.  And explain the benefit.  And have the proposal 
discussed in 6man.

The current document that has requested working group adoption does not 
address these needs.

Yours,
Joel

On 3/17/19 10:17 PM, Robert Raszuk wrote:
> Dear Ron,
> 
> While authors may address your other questions allow me to express an 
> opinion regarding your observation:
> 
> "conflict with RFC 8200 [1] [2]"
> 
> As written today RFC 8200 provides rules for insertion and handling of 
> those extension headers which are enumerated in said RFC and are listed 
> in IANA IPv6 Extension Header Types registry. SRH is not part of either 
> of those lists.
> 
> It also has been communicated very clearly by 6man chairs and ADs when 
> RFC8200 was proceeding that any future document can update it when it 
> defines new types of extension headers therefor I find your reasoning of 
> "conflict" quite bizarre.
> 
> Kind regards,
> R.
> 
> 
> On Sun, Mar 17, 2019 at 9:52 PM Ron Bonica 
> <rbonica=40juniper.net@dmarc.ietf.org 
> <mailto:40juniper.net@dmarc.ietf.org>> wrote:
> 
>     Bruno,____
> 
>     __ __
> 
>     While I like many things about this draft, I don’t think that it is
>     ready for adoption. Reasons follow:____
> 
>     __ __
> 
>       * Section 4.1 appears to contradict Section 4.3.1 of
>         draft-ietf-6man-segment-routing-header. In particular, consider
>         the behavior when Segments Left equals 0.____
>       * Sections 4.13, 4.14. 4.21.1 and 4.21.2 appear to be in conflict
>         with RFC 8200 [1] [2].____
>       * The intent of section 4.19 is unclear.____
>       * As Adrian points out, the draft extends the semantics of the
>         IPv6 address. Such a decision may have wide-reaching impact, and
>         should be socialized with a wider community (6man, INTAREA WG,
>         V6OPS)____
>       * The draft appears to be in conflict with
>         draft-ietf-6man-segment-routing-header regarding how extension
>         headers after the SRH are processed. According to
>         draft-ietf-6man-segment-routing-header, subsequent extension
>         headers are processed out of order, potentially in conflict with
>         RFC 8200. According to this draft, subsequent extension headers
>         are ignored.____
> 
>     __ __
> 
>     [1] According to RFC 8200, “Each extension header should occur at
>     most once, except for the Destination Options header, which should
>     occur at most twice (once before a Routing header and once before
>     the upper-layer header).”____
> 
>     __ __
> 
>     [2] According to RFC 8200, “extension headers must be processed
>     strictly in the order they appear  in the packet” . Sections 4.13
>     and 4.14 violate this rule by prepending an SRH before the SRH that
>     is currently being processed.____
> 
>     __ __
> 
>     __ __
> 
>     __ __
> 
>                                                                                                           Ron____
> 
>     __ __
> 
>     __ __
> 
>     __ __
> 
>     *From:* spring <spring-bounces@ietf.org
>     <mailto:spring-bounces@ietf.org>> *On Behalf Of
>     *bruno.decraene@orange.com <mailto:bruno.decraene@orange.com>
>     *Sent:* Wednesday, March 13, 2019 2:50 PM
>     *To:* SPRING WG <spring@ietf.org <mailto:spring@ietf.org>>
>     *Cc:* draft-filsfils-spring-srv6-network-programming@ietf.org
>     <mailto:draft-filsfils-spring-srv6-network-programming@ietf.org>
>     *Subject:* [spring] IPR Poll for
>     draft-filsfils-spring-srv6-network-programming____
> 
>     __ __
> 
>     Hi authors, SPRING WG,____
> 
>     __  __
> 
>     In parallel to the call for adoption for draft-filsfils-spring-srv6-network-programming (1), we would like to poll for IPR.____
> 
>     __  __
> 
>     If you are aware of IPR that applies to draft-filsfils-spring-srv6-network-programming 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.____
> 
>     If you are not an author or contributor, please explicitly respond only if you are aware of IPR that has not yet been disclosed.____
> 
>     __  __
> 
>     This document will not advance into the working group until IPR confirmations have been received from all authors and contributors.____
> 
>     __  __
> 
>     Thank you,____
> 
>     __  __
> 
>     __(1)__https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-07  <https://urldefense.proofpoint.com/v2/url?u=https-3A__tools.ietf.org_html_draft-2Dfilsfils-2Dspring-2Dsrv6-2Dnetwork-2Dprogramming-2D07&d=DwMFAg&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=Fch9FQ82sir-BoLx84hKuKwl-AWF2EfpHcAwrDThKP8&m=g5euhKG6OY3m1hMFewvX_AhsPNPcaeHrTSLS3oY3KoM&s=5KlDTs7QncIP0FnevaMhAHEIjoQLlCw9xVVUrR40dqY&e=>____
> 
>     __  __
> 
>     __  __
> 
>     --Bruno & Rob.____
> 
>     __ __
> 
>     _____________________________________________________________________________________________________________________________
> 
>     __ __
> 
>     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.____
> 
>     _______________________________________________
>     spring mailing list
>     spring@ietf.org <mailto:spring@ietf.org>
>     https://www.ietf.org/mailman/listinfo/spring
> 
> 
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
> 


From nobody Mon Mar 18 01:06:17 2019
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From: <bruno.decraene@orange.com>
To: Linda Dunbar <linda.dunbar@huawei.com>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>, SPRING WG <spring@ietf.org>
Thread-Topic: IETF 104 - SPRING meeting
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Subject: Re: [spring] IETF 104 - SPRING meeting
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Linda,

Sorry, the agenda has already been published and is full/oversubscribed.
You are welcome to introduce your draft on the mailing list, in order to ra=
ise awareness and quick off discussions .

Thanks you,
--Bruno

-----Original Message-----
From: Linda Dunbar [mailto:linda.dunbar@huawei.com]=20
Sent: Friday, March 15, 2019 7:03 PM
To: DECRAENE Bruno TGI/OLN; SPRING WG
Cc: spring-chairs@ietf.org
Subject: RE: IETF 104 - SPRING meeting

Bruno,=20

Sorry for the late request, possible to add 5 minutes for the update to the=
 following draft?=20

https://datatracker.ietf.org/doc/draft-dunbar-sr-sdwan-over-hybrid-networks/

Thank you,=20

Linda Dunbar

-----Original Message-----
From: spring [mailto:spring-bounces@ietf.org] On Behalf Of bruno.decraene@o=
range.com
Sent: Friday, March 15, 2019 12:16 PM
To: SPRING WG <spring@ietf.org>
Cc: spring-chairs@ietf.org
Subject: Re: [spring] IETF 104 - SPRING meeting

Hi SPRING WG,
=20
The agenda for the SPRING working group session at IETF 104 has been upload=
ed to
https://datatracker.ietf.org/meeting/104/materials/agenda-104-spring-00

We were oversubscribed for this session.
Whether your draft made it to the agenda or not, you are invited to introdu=
ce your draft/update to the mailing list.

Please send your slides to both chairs before Tuesday, March 26, 13:00 loca=
l time. Earlier is better. Sending PDF is usually better (than the automati=
c conversion).
A checklist is available on the wiki: https://trac.ietf.org/trac/spring/wik=
i/Checklist%20for%20presenting%20at%20a%20SPRING%20meeting

Thank you,

See you in Prague.
--Rob, Bruno

-----Original Message-----
From: spring [mailto:spring-bounces@ietf.org] On Behalf Of bruno.decraene@o=
range.com
Sent: Monday, March 4, 2019 5:55 PM
To: SPRING WG
Cc: spring-chairs@ietf.org
Subject: [spring] IETF 104 - SPRING meeting

Hi WG,

For IETF 104, the SPRING WG is currently scheduled to meet Thursday, March =
28, 13:50-15:50. We have a two hours session.
https://datatracker.ietf.org/meeting/104/agenda.html

It is time to start building the SPRING WG agenda.

Please send to chairs your request for a presentation slot, indicating draf=
t name, speaker, and desired duration (covering presentation and discussion=
), before Monday 2019-03-11 COB. Before is better.

If it is the first presentation of a non-WG draft, please first introduce y=
our draft on the mailing list.
Otherwise, please give a reason why it is required to have a new presentati=
on slot.

A checklist is available on the wiki: https://trac.ietf.org/trac/spring/wik=
i/Checklist%20for%20presenting%20at%20a%20SPRING%20meeting

Please send your slides before Tuesday, March 26, 13:00 local time. Earlier=
 is better.

Thank you,

--Bruno, Rob


___________________________________________________________________________=
______________________________________________

Ce message et ses pieces jointes peuvent contenir des informations confiden=
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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. Le=
s messages electroniques etant susceptibles d'alteration, Orange decline to=
ute 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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From: Robert Raszuk <rraszuk@gmail.com>
Date: Mon, 18 Mar 2019 10:47:12 +0100
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To: "Joel M. Halpern" <jmh@joelhalpern.com>
Cc: Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>, SPRING WG <spring@ietf.org>,  "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
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Subject: Re: [spring] IPR Poll for draft-filsfils-spring-srv6-network-programming
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Hi Joel,

The way I would handle it is to proceed with the current document in SPRING
and use it as indicator of benefits while in the same time issue a new
draft in 6man updating RFC8200 not by duplicating this draft, but using it
as justification for the update.

Going now to 6man with individual submission not really related to IPv6 is
IMHO not the best strategy.

Btw this thread is about IPR pool ... I think Ron may have mixed the
threads :)

Best,
R.

On Mon, Mar 18, 2019 at 8:44 AM Joel M. Halpern <jmh@joelhalpern.com> wrote=
:

> Robert, your description of the conflict situation does not match my
> understanding.
> A new rFC can always update existing RFCs.  However, it can't do so
> silently.  If this document wants to make a change to 8200's rules, it
> needs to say so.  And explain the benefit.  And have the proposal
> discussed in 6man.
>
> The current document that has requested working group adoption does not
> address these needs.
>
> Yours,
> Joel
>
> On 3/17/19 10:17 PM, Robert Raszuk wrote:
> > Dear Ron,
> >
> > While authors may address your other questions allow me to express an
> > opinion regarding your observation:
> >
> > "conflict with RFC 8200 [1] [2]"
> >
> > As written today RFC 8200 provides rules for insertion and handling of
> > those extension headers which are enumerated in said RFC and are listed
> > in IANA IPv6 Extension Header Types registry. SRH is not part of either
> > of those lists.
> >
> > It also has been communicated very clearly by 6man chairs and ADs when
> > RFC8200 was proceeding that any future document can update it when it
> > defines new types of extension headers therefor I find your reasoning o=
f
> > "conflict" quite bizarre.
> >
> > Kind regards,
> > R.
> >
> >
> > On Sun, Mar 17, 2019 at 9:52 PM Ron Bonica
> > <rbonica=3D40juniper.net@dmarc.ietf.org
> > <mailto:40juniper.net@dmarc.ietf.org>> wrote:
> >
> >     Bruno,____
> >
> >     __ __
> >
> >     While I like many things about this draft, I don=E2=80=99t think th=
at it is
> >     ready for adoption. Reasons follow:____
> >
> >     __ __
> >
> >       * Section 4.1 appears to contradict Section 4.3.1 of
> >         draft-ietf-6man-segment-routing-header. In particular, consider
> >         the behavior when Segments Left equals 0.____
> >       * Sections 4.13, 4.14. 4.21.1 and 4.21.2 appear to be in conflict
> >         with RFC 8200 [1] [2].____
> >       * The intent of section 4.19 is unclear.____
> >       * As Adrian points out, the draft extends the semantics of the
> >         IPv6 address. Such a decision may have wide-reaching impact, an=
d
> >         should be socialized with a wider community (6man, INTAREA WG,
> >         V6OPS)____
> >       * The draft appears to be in conflict with
> >         draft-ietf-6man-segment-routing-header regarding how extension
> >         headers after the SRH are processed. According to
> >         draft-ietf-6man-segment-routing-header, subsequent extension
> >         headers are processed out of order, potentially in conflict wit=
h
> >         RFC 8200. According to this draft, subsequent extension headers
> >         are ignored.____
> >
> >     __ __
> >
> >     [1] According to RFC 8200, =E2=80=9CEach extension header should oc=
cur at
> >     most once, except for the Destination Options header, which should
> >     occur at most twice (once before a Routing header and once before
> >     the upper-layer header).=E2=80=9D____
> >
> >     __ __
> >
> >     [2] According to RFC 8200, =E2=80=9Cextension headers must be proce=
ssed
> >     strictly in the order they appear  in the packet=E2=80=9D . Section=
s 4.13
> >     and 4.14 violate this rule by prepending an SRH before the SRH that
> >     is currently being processed.____
> >
> >
>

--0000000000007c3c7f05845b46aa
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div dir=3D"ltr"><div class=3D"gmail_default" style=3D"fon=
t-family:arial,helvetica,sans-serif;font-size:small">Hi Joel,</div><div cla=
ss=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;font-s=
ize:small"><br></div><div class=3D"gmail_default" style=3D"font-family:aria=
l,helvetica,sans-serif;font-size:small">The way I would handle it is to pro=
ceed with the current document in SPRING and use it as indicator of benefit=
s while in the same time issue a new draft in 6man updating RFC8200 not by =
duplicating this draft, but using it as justification for the update.=C2=A0=
</div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,san=
s-serif;font-size:small"><br></div><div class=3D"gmail_default" style=3D"fo=
nt-family:arial,helvetica,sans-serif;font-size:small">Going now to 6man wit=
h individual submission not really related to IPv6 is IMHO not the best str=
ategy.=C2=A0</div><div class=3D"gmail_default" style=3D"font-family:arial,h=
elvetica,sans-serif;font-size:small"><br></div><div class=3D"gmail_default"=
 style=3D"font-family:arial,helvetica,sans-serif;font-size:small">Btw this =
thread is about IPR pool ... I think Ron may have mixed the threads :)=C2=
=A0</div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,=
sans-serif;font-size:small"><br></div><div class=3D"gmail_default" style=3D=
"font-family:arial,helvetica,sans-serif;font-size:small">Best,<br>R.</div><=
div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif=
;font-size:small"><br></div></div><div class=3D"gmail_quote"><div dir=3D"lt=
r" class=3D"gmail_attr">On Mon, Mar 18, 2019 at 8:44 AM Joel M. Halpern &lt=
;<a href=3D"mailto:jmh@joelhalpern.com">jmh@joelhalpern.com</a>&gt; wrote:<=
br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8e=
x;border-left:1px solid rgb(204,204,204);padding-left:1ex">Robert, your des=
cription of the conflict situation does not match my <br>
understanding.<br>
A new rFC can always update existing RFCs.=C2=A0 However, it can&#39;t do s=
o <br>
silently.=C2=A0 If this document wants to make a change to 8200&#39;s rules=
, it <br>
needs to say so.=C2=A0 And explain the benefit.=C2=A0 And have the proposal=
 <br>
discussed in 6man.<br>
<br>
The current document that has requested working group adoption does not <br=
>
address these needs.<br>
<br>
Yours,<br>
Joel<br>
<br>
On 3/17/19 10:17 PM, Robert Raszuk wrote:<br>
&gt; Dear Ron,<br>
&gt; <br>
&gt; While authors may address your other questions allow me to express an =
<br>
&gt; opinion regarding your observation:<br>
&gt; <br>
&gt; &quot;conflict with RFC 8200 [1] [2]&quot;<br>
&gt; <br>
&gt; As written today RFC 8200 provides rules for insertion and handling of=
 <br>
&gt; those extension headers which are enumerated=C2=A0in said RFC and are =
listed <br>
&gt; in IANA IPv6 Extension Header Types registry. SRH is not part of eithe=
r <br>
&gt; of those lists.<br>
&gt; <br>
&gt; It also has been communicated very clearly by 6man chairs and ADs when=
 <br>
&gt; RFC8200 was proceeding that any future document can update it when it =
<br>
&gt; defines new types of extension headers therefor I find your reasoning =
of <br>
&gt; &quot;conflict&quot; quite bizarre.<br>
&gt; <br>
&gt; Kind regards,<br>
&gt; R.<br>
&gt; <br>
&gt; <br>
&gt; On Sun, Mar 17, 2019 at 9:52 PM Ron Bonica <br>
&gt; &lt;rbonica=3D<a href=3D"mailto:40juniper.net@dmarc.ietf.org" target=
=3D"_blank">40juniper.net@dmarc.ietf.org</a> <br>
&gt; &lt;mailto:<a href=3D"mailto:40juniper.net@dmarc.ietf.org" target=3D"_=
blank">40juniper.net@dmarc.ietf.org</a>&gt;&gt; wrote:<br>
&gt; <br>
&gt;=C2=A0 =C2=A0 =C2=A0Bruno,____<br>
&gt; <br>
&gt;=C2=A0 =C2=A0 =C2=A0__ __<br>
&gt; <br>
&gt;=C2=A0 =C2=A0 =C2=A0While I like many things about this draft, I don=E2=
=80=99t think that it is<br>
&gt;=C2=A0 =C2=A0 =C2=A0ready for adoption. Reasons follow:____<br>
&gt; <br>
&gt;=C2=A0 =C2=A0 =C2=A0__ __<br>
&gt; <br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0* Section 4.1 appears to contradict Section =
4.3.1 of<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0draft-ietf-6man-segment-routing-heade=
r. In particular, consider<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0the behavior when Segments Left equal=
s 0.____<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0* Sections 4.13, 4.14. 4.21.1 and 4.21.2 app=
ear to be in conflict<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0with RFC 8200 [1] [2].____<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0* The intent of section 4.19 is unclear.____=
<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0* As Adrian points out, the draft extends th=
e semantics of the<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0IPv6 address. Such a decision may hav=
e wide-reaching impact, and<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0should be socialized with a wider com=
munity (6man, INTAREA WG,<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0V6OPS)____<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0* The draft appears to be in conflict with<b=
r>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0draft-ietf-6man-segment-routing-heade=
r regarding how extension<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0headers after the SRH are processed. =
According to<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0draft-ietf-6man-segment-routing-heade=
r, subsequent extension<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0headers are processed out of order, p=
otentially in conflict with<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0RFC 8200. According to this draft, su=
bsequent extension headers<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0are ignored.____<br>
&gt; <br>
&gt;=C2=A0 =C2=A0 =C2=A0__ __<br>
&gt; <br>
&gt;=C2=A0 =C2=A0 =C2=A0[1] According to RFC 8200, =E2=80=9CEach extension =
header should occur at<br>
&gt;=C2=A0 =C2=A0 =C2=A0most once, except for the Destination Options heade=
r, which should<br>
&gt;=C2=A0 =C2=A0 =C2=A0occur at most twice (once before a Routing header a=
nd once before<br>
&gt;=C2=A0 =C2=A0 =C2=A0the upper-layer header).=E2=80=9D____<br>
&gt; <br>
&gt;=C2=A0 =C2=A0 =C2=A0__ __<br>
&gt; <br>
&gt;=C2=A0 =C2=A0 =C2=A0[2] According to RFC 8200, =E2=80=9Cextension heade=
rs must be processed<br>
&gt;=C2=A0 =C2=A0 =C2=A0strictly in the order they appear =C2=A0in the pack=
et=E2=80=9D . Sections 4.13<br>
&gt;=C2=A0 =C2=A0 =C2=A0and 4.14 violate this rule by prepending an SRH bef=
ore the SRH that<br>
&gt;=C2=A0 =C2=A0 =C2=A0is currently being processed.____<br>
&gt; <br>
&gt;=C2=A0 =C2=A0 =C2=A0<br>
</blockquote></div></div>

--0000000000007c3c7f05845b46aa--


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To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
CC: "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
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Subject: Re: [spring] IPR Poll for draft-filsfils-spring-srv6-network-programming
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From: stefano previdi <stefano@previdi.net>
In-Reply-To: <22596_1552502971_5C8950BB_22596_34_1_53C29892C857584299CBF5D05346208A48A18771@OPEXCAUBM43.corporate.adroot.infra.ftgroup>
Date: Mon, 18 Mar 2019 13:48:38 +0100
Cc: "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
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To: Bruno Decraene <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/WK9hVBFqmZtbqjRnHtqmpQFKEYU>
Subject: Re: [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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Hi,

I support the working group adoption of this document.

Thanks.
s.


> On Mar 13, 2019, at 7:49 PM, bruno.decraene@orange.com wrote:
>=20
> Hi SPRING WG,
> =20
> This email initiates a three week call for working group adoption for =
draft-filsfils-spring-srv6-network-programming. (Three weeks to account =
for the IETF week)
> =20
> Please indicate your support, comments, or objection, for adopting =
this draft as a working group item by April, 3rd, 2019 (aka 2019-04-03)
> We are particularly interested in hearing from working group members =
that are not co-authors of this draft.
> =20
> We are also looking for volunteers who would be ready to perform a =
technical review of this work at some later stage, such as before or =
during WG the last call.
> =20
> In parallel to this adoption call, I will send an IPR call for this =
document. We will need all authors and contributors to confirm their IPR =
position on this document.
> There is currently 1 IPR filled (2)
> =20
> (1)  =
https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming=
-07
> (2)  =
https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-srv6-n=
etwork-programming&submit=3Ddraft
> =20
> =20
> Thank you,
> --Bruno & Rob.
> =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


From nobody Mon Mar 18 06:25:23 2019
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To: stefano previdi <stefano@previdi.net>
Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/_QIthfZsCbIE_868u7AWWQ86_8s>
Subject: Re: [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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I support the working group adoption of this document.

John Leddy
>=20
>> On Mar 13, 2019, at 7:49 PM, bruno.decraene@orange.com wrote:
>>=20
>> Hi SPRING WG,
>>=20
>> This email initiates a three week call for working group adoption for dra=
ft-filsfils-spring-srv6-network-programming. (Three weeks to account for the=
 IETF week)
>>=20
>> Please indicate your support, comments, or objection, for adopting this d=
raft as a working group item by April, 3rd, 2019 (aka 2019-04-03)
>> We are particularly interested in hearing from working group members that=
 are not co-authors of this draft.
>>=20
>> We are also looking for volunteers who would be ready to perform a techni=
cal review of this work at some later stage, such as before or during WG the=
 last call.
>>=20
>> In parallel to this adoption call, I will send an IPR call for this docum=
ent. We will need all authors and contributors to confirm their IPR position=
 on this document.
>> There is currently 1 IPR filled (2)
>>=20
>> (1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-progr=
amming-07
>> (2)  https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-=
srv6-network-programming&submit=3Ddraft
>>=20
>>=20
>> Thank you,
>> --Bruno & Rob.
>>=20
>> _________________________________________________________________________=
________________________________________________
>>=20
>> 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 e=
lectroniques etant susceptibles d'alteration,
>> Orange decline toute responsabilite si ce message a ete altere, deforme o=
u falsifie. Merci.
>>=20
>> 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.
>>=20
>> _______________________________________________
>> spring mailing list
>> spring@ietf.org
>> https://www.ietf.org/mailman/listinfo/spring
>=20
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring


From nobody Mon Mar 18 08:27:20 2019
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To: Matsushima Satoru <satoru.matsushima@g.softbank.co.jp>, Bruno Decraene <bruno.decraene@orange.com>
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From: Ahmed Bashandy <abashandy.ietf@gmail.com>
Date: Tue, 19 Mar 2019 17:11:34 +0200
Message-ID: <CAAgvS4p9X0y6=UKay8a8S+iQeRijwdo_hDy5gQPO06MPfxA58w@mail.gmail.com>
To: Bruno Decraene <bruno.decraene@orange.com>
Cc: SPRING WG List <spring@ietf.org>,  draft-filsfils-spring-srv6-network-programming@ietf.org
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/0-gOjbVvIV3-w_RyQ6FGkHR_Eyg>
Subject: Re: [spring] IPR Poll for draft-filsfils-spring-srv6-network-programming
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As a contributor, I am not aware of any IPR that had not already been
disclosed

Ahmed

On Wed, Mar 13, 2019, 8:50 PM <bruno.decraene@orange.com> wrote:

> Hi authors, SPRING WG,
>
>
>
> In parallel to the call for adoption for draft-filsfils-spring-srv6-network-programming (1), we would like to poll for IPR.
>
>
>
> If you are aware of IPR that applies to draft-filsfils-spring-srv6-network-programming 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.
>
> If you are not an author or contributor, please explicitly respond only if you are aware of IPR that has not yet been disclosed.
>
>
>
> This document will not advance into the working group until IPR confirmations have been received from all authors and contributors.
>
>
>
> Thank you,
>
>
>
> (1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-07
>
>
>
>
>
> --Bruno & Rob.
>
>
>
> _________________________________________________________________________________________________________________________
>
> 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.
>
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> they should not be distributed, used or copied without authorisation.
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> Thank you.
>
> _______________________________________________
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<div dir=3D"auto"><div>As a contributor, I am not aware of any IPR that had=
 not already been disclosed</div><div dir=3D"auto"><br></div><div dir=3D"au=
to">Ahmed=C2=A0<br><br><div class=3D"gmail_quote" dir=3D"auto"><div dir=3D"=
ltr">On Wed, Mar 13, 2019, 8:50 PM  &lt;<a href=3D"mailto:bruno.decraene@or=
ange.com">bruno.decraene@orange.com</a>&gt; wrote:<br></div><blockquote cla=
ss=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;pa=
dding-left:1ex">







<div lang=3D"FR" link=3D"blue" vlink=3D"purple">
<div class=3D"m_641730404143111509WordSection1">
<pre><span lang=3D"EN-US">Hi authors, 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">In parallel to the call for adoption for draft-fi=
lsfils-spring-srv6-network-programming (1), we would like to poll for IPR.<=
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 aware of IPR that applies to draft-fil=
sfils-spring-srv6-network-programming please respond to this email.<u></u><=
u></u></span></pre>
<pre><span lang=3D"EN-US">If you are aware of IPR, please indicate whether =
it has been disclosed in accordance with IETF IPR rules (RFCs 3979, 4879, 3=
669 and 5378 provide more details).<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 an *author or contributor* please resp=
ond to this email regardless of whether or not you&#39;re aware of any IPR.=
<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US">If you are not an author or contributor, please e=
xplicitly respond only if you are aware of IPR that has not yet been disclo=
sed.<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 document will not advance into the working g=
roup until IPR confirmations have been received from all authors and contri=
butors.<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"><u></u>=C2=A0<u></u></span></pre>
<pre style=3D"margin-left:24.0pt"><u></u><span lang=3D"EN-US"><span>(1)<spa=
n style=3D"font:7.0pt &quot;Times New Roman&quot;">=C2=A0 </span></span></s=
pan><u></u><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draf=
t-filsfils-spring-srv6-network-programming-07" target=3D"_blank" rel=3D"nor=
eferrer">https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-pro=
gramming-07</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"><u></u>=C2=A0<u></u></span></pre>
<pre>--Bruno &amp; Rob.<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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To: tech_kals Kals <tech.kals@gmail.com>, "Stefano Previdi (sprevidi)" <sprevidi@cisco.com>, "Clarence Filsfils (cfilsfil)" <cfilsfil@cisco.com>, "Ahmed Bashandy (bashandy)" <bashandy@cisco.com>, "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, "Peter Psenak (ppsenak)" <ppsenak@cisco.com>
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From nobody Wed Mar 20 10:50:00 2019
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To: "Darren Dukes (ddukes)" <ddukes@cisco.com>, SPRING WG <spring@ietf.org>
References: <AADD6496-B8B6-458F-BF0C-217841EE4011@cisco.com>
From: "Joel M. Halpern" <jmh@joelhalpern.com>
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Date: Wed, 20 Mar 2019 18:49:53 +0100
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Subject: Re: [spring] IPR Poll for draft-filsfils-spring-srv6-network-programming
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In my experience, if there is a requirement for collaborating with 
another working group on a topic, it is both helpful and important to 
spell that out and have it agreed as part of the adoption process.  If 
it is not dealt with then, it is MUCH harder to deal with later.

Yours,
Joel

On 3/20/19 6:39 PM, Darren Dukes (ddukes) wrote:
> Hi Ron, the authors are suggesting this document for working group 
> adoption, not for last call.
> 
> When the working group adopts it, the working group starts to work on it.
> 
> If the working group decides to address header insertion and address 
> that with 6man then the working group can take on that work, but it does 
> not need to block this document being adopted.
> 
> Darren
> 
> *From: *spring <spring-bounces@ietf.org> on behalf of Ron Bonica 
> <rbonica=40juniper.net@dmarc.ietf.org>
> *Date: *Sunday, March 17, 2019 at 4:53 PM
> *To: *"bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG 
> <spring@ietf.org>
> *Cc: *"draft-filsfils-spring-srv6-network-programming@ietf.org" 
> <draft-filsfils-spring-srv6-network-programming@ietf.org>
> *Subject: *Re: [spring] IPR Poll for 
> draft-filsfils-spring-srv6-network-programming
> 
> Bruno,
> 
> While I like many things about this draft, I don’t think that it is 
> ready for adoption. Reasons follow:
> 
>   * Section 4.1 appears to contradict Section 4.3.1 of
>     draft-ietf-6man-segment-routing-header. In particular, consider the
>     behavior when Segments Left equals 0.
>   * Sections 4.13, 4.14. 4.21.1 and 4.21.2 appear to be in conflict with
>     RFC 8200 [1] [2].
>   * The intent of section 4.19 is unclear.
>   * As Adrian points out, the draft extends the semantics of the IPv6
>     address. Such a decision may have wide-reaching impact, and should
>     be socialized with a wider community (6man, INTAREA WG, V6OPS)
>   * The draft appears to be in conflict with
>     draft-ietf-6man-segment-routing-header regarding how extension
>     headers after the SRH are processed. According to
>     draft-ietf-6man-segment-routing-header, subsequent extension headers
>     are processed out of order, potentially in conflict with RFC 8200.
>     According to this draft, subsequent extension headers are ignored.
> 
> [1] According to RFC 8200, “Each extension header should occur at most 
> once, except for the Destination Options header, which should occur at 
> most twice (once before a Routing header and once before the upper-layer 
> header).”
> 
> [2] According to RFC 8200, “extension headers must be processed strictly 
> in the order they appear  in the packet” . Sections 4.13 and 4.14 
> violate this rule by prepending an SRH before the SRH that is currently 
> being processed.
> 
>                                                                                                       Ron
> 
> *From:* spring <spring-bounces@ietf.org> *On Behalf Of 
> *bruno.decraene@orange.com
> *Sent:* Wednesday, March 13, 2019 2:50 PM
> *To:* SPRING WG <spring@ietf.org>
> *Cc:* draft-filsfils-spring-srv6-network-programming@ietf.org
> *Subject:* [spring] IPR Poll for 
> draft-filsfils-spring-srv6-network-programming
> 
> Hi authors, SPRING WG,
> 
>   
> 
> In parallel to the call for adoption for draft-filsfils-spring-srv6-network-programming (1), we would like to poll for IPR.
> 
>   
> 
> If you are aware of IPR that applies to draft-filsfils-spring-srv6-network-programming 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.
> 
> If you are not an author or contributor, please explicitly respond only if you are aware of IPR that has not yet been disclosed.
> 
>   
> 
> This document will not advance into the working group until IPR confirmations have been received from all authors and contributors.
> 
>   
> 
> Thank you,
> 
>   
> 
> (1)https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-07  <https://urldefense.proofpoint.com/v2/url?u=https-3A__tools.ietf.org_html_draft-2Dfilsfils-2Dspring-2Dsrv6-2Dnetwork-2Dprogramming-2D07&d=DwMFAg&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=Fch9FQ82sir-BoLx84hKuKwl-AWF2EfpHcAwrDThKP8&m=g5euhKG6OY3m1hMFewvX_AhsPNPcaeHrTSLS3oY3KoM&s=5KlDTs7QncIP0FnevaMhAHEIjoQLlCw9xVVUrR40dqY&e=>
> 
>   
> 
>   
> 
> --Bruno & Rob.
> 
> _________________________________________________________________________________________________________________________
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> 
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> Thank you.
> 
> 
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
> 


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From: "Darren Dukes (ddukes)" <ddukes@cisco.com>
To: Adrian Farrel <adrian@olddog.co.uk>
CC: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>, "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
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From: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>
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CC: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>, "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
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From: "Darren Dukes (ddukes)" <ddukes@cisco.com>
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From: "Darren Dukes (ddukes)" <ddukes@cisco.com>
To: "Joel M. Halpern" <jmh@joelhalpern.com>, SPRING WG <spring@ietf.org>
Thread-Topic: [spring] IPR Poll for draft-filsfils-spring-srv6-network-programming
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Subject: Re: [spring] IPR Poll for draft-filsfils-spring-srv6-network-programming
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From: Robert Raszuk <rraszuk@gmail.com>
Date: Thu, 21 Mar 2019 16:17:26 +0100
Message-ID: <CA+b+ER=_-baW6KUFYsF6xvp2UNWuFRFYKAS_SMRo4RVTs1yebQ@mail.gmail.com>
To: Bruno Decraene <bruno.decraene@orange.com>
Cc: SPRING WG <spring@ietf.org>,  "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
Content-Type: multipart/alternative; boundary="00000000000045e94305849c3d22"
Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/QiZh09XSGqRvjcf-r5Yc-XFAgmw>
Subject: Re: [spring] IPR Poll for draft-filsfils-spring-srv6-network-programming
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--00000000000045e94305849c3d22
Content-Type: text/plain; charset="UTF-8"

Dear Chairs and the WG,



I am not aware of any IPR other than the one already disclosed.



Thanks

Robert

On Wed, Mar 13, 2019 at 7:50 PM <bruno.decraene@orange.com> wrote:

> Hi authors, SPRING WG,
>
>
>
> In parallel to the call for adoption for draft-filsfils-spring-srv6-network-programming (1), we would like to poll for IPR.
>
>
>
> If you are aware of IPR that applies to draft-filsfils-spring-srv6-network-programming 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.
>
> If you are not an author or contributor, please explicitly respond only if you are aware of IPR that has not yet been disclosed.
>
>
>
> This document will not advance into the working group until IPR confirmations have been received from all authors and contributors.
>
>
>
> Thank you,
>
>
>
> (1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-07
>
>
>
>
>
> --Bruno & Rob.
>
>
>
> _________________________________________________________________________________________________________________________
>
> 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.
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

--00000000000045e94305849c3d22
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:arial,he=
lvetica,sans-serif;font-size:small"><p class=3D"MsoNormal" style=3D"font-fa=
mily:Arial,Helvetica,sans-serif">Dear Chairs and the WG,<u></u><u></u></p><=
p class=3D"MsoNormal" style=3D"font-family:Arial,Helvetica,sans-serif"><u><=
/u>=C2=A0<u></u></p><p class=3D"MsoNormal" style=3D"font-family:Arial,Helve=
tica,sans-serif"><span style=3D"color:black">I am not aware of any IPR othe=
r=C2=A0than the one already disclosed.</span><u></u><u></u></p><p class=3D"=
MsoNormal" style=3D"font-family:Arial,Helvetica,sans-serif"><u></u>=C2=A0<u=
></u></p><div style=3D"font-family:Arial,Helvetica,sans-serif"><p class=3D"=
MsoNormal"><span style=3D"font-size:12pt;font-family:&quot;Times New Roman&=
quot;,serif">Thanks</span></p><p class=3D"MsoNormal"><span style=3D"font-si=
ze:12pt;font-family:&quot;Times New Roman&quot;,serif">Robert</span></p></d=
iv></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gma=
il_attr">On Wed, Mar 13, 2019 at 7:50 PM &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">







<div lang=3D"FR">
<div class=3D"gmail-m_-3579442283739936613WordSection1">
<pre><span lang=3D"EN-US">Hi authors, 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">In parallel to the call for adoption for draft-fi=
lsfils-spring-srv6-network-programming (1), we would like to poll for IPR.<=
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 aware of IPR that applies to draft-fil=
sfils-spring-srv6-network-programming please respond to this email.<u></u><=
u></u></span></pre>
<pre><span lang=3D"EN-US">If you are aware of IPR, please indicate whether =
it has been disclosed in accordance with IETF IPR rules (RFCs 3979, 4879, 3=
669 and 5378 provide more details).<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 an *author or contributor* please resp=
ond to this email regardless of whether or not you&#39;re aware of any IPR.=
<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US">If you are not an author or contributor, please e=
xplicitly respond only if you are aware of IPR that has not yet been disclo=
sed.<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 document will not advance into the working g=
roup until IPR confirmations have been received from all authors and contri=
butors.<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"><u></u>=C2=A0<u></u></span></pre>
<pre style=3D"margin-left:24pt"><u></u><span lang=3D"EN-US"><span>(1)<span =
style=3D"font:7pt &quot;Times New Roman&quot;">=C2=A0 </span></span></span>=
<u></u><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draft-fi=
lsfils-spring-srv6-network-programming-07" target=3D"_blank">https://tools.=
ietf.org/html/draft-filsfils-spring-srv6-network-programming-07</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"><u></u>=C2=A0<u></u></span></pre>
<pre>--Bruno &amp; Rob.<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=
>
<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: "Bernier, Daniel" <daniel.bernier@bell.ca>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
CC: "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
Thread-Topic: IPR Poll for draft-filsfils-spring-srv6-network-programming
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Date: Thu, 21 Mar 2019 16:11:45 +0000
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From: "Voyer, Daniel" <daniel.voyer@bell.ca>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
CC: "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
Thread-Topic: IPR Poll for draft-filsfils-spring-srv6-network-programming
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From: Andrea Chiarato <andrea.chiarato@uniroma1.it>
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Cc: SPRING WG <spring@ietf.org>, "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
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Subject: Re: [spring] Working Group Adoption Call for draft-filsfils-spring-srv6-network-programming
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I support the working group adoption of this document.

Thanks,
Andrea Chiarato

> Il giorno 13 mar 2019, alle ore 19:49, <bruno.decraene@orange.com> <bruno.=
decraene@orange.com> ha scritto:
>=20
> Hi SPRING WG,
> =20
> This email initiates a three week call for working group adoption for draf=
t-filsfils-spring-srv6-network-programming. (Three weeks to account for the I=
ETF week)
> =20
> Please indicate your support, comments, or objection, for adopting this dr=
aft as a working group item by April, 3rd, 2019 (aka 2019-04-03)
> We are particularly interested in hearing from working group members that a=
re not co-authors of this draft.
> =20
> We are also looking for volunteers who would be ready to perform a technic=
al review of this work at some later stage, such as before or during WG the l=
ast call.
> =20
> In parallel to this adoption call, I will send an IPR call for this docume=
nt. We will need all authors and contributors to confirm their IPR position o=
n this document.
> There is currently 1 IPR filled (2)
> =20
> (1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-progra=
mming-07
> (2)  https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-s=
rv6-network-programming&submit=3Ddraft
> =20
> =20
> Thank you,
> --Bruno & Rob.
> =20
> __________________________________________________________________________=
_______________________________________________
>=20
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>=20
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<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">I support the working group adoption of this document.<div><div><br></div><div>Thanks,<br><div id="AppleMailSignature">Andrea Chiarato</div><div><br>Il giorno 13 mar 2019, alle ore 19:49, &lt;<a href="mailto:bruno.decraene@orange.com">bruno.decraene@orange.com</a>&gt; &lt;<a href="mailto:bruno.decraene@orange.com">bruno.decraene@orange.com</a>&gt; ha scritto:<br><br></div><blockquote type="cite"><div>
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<div class="WordSection1">
<pre><span lang="EN-US" style="mso-ansi-language:EN-US">Hi SPRING WG,<o:p></o:p></span></pre>
<pre><span lang="EN-US" style="mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang="EN-US" style="mso-ansi-language:EN-US">This email initiates a three week call for working group adoption for draft-filsfils-spring-srv6-network-programming. (Three weeks to account for the IETF week)<o:p></o:p></span></pre>
<pre><span lang="EN-US" style="mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang="EN-US" style="mso-ansi-language:EN-US">Please indicate your support, comments, or objection, for adopting this draft as a working group item by April, 3<sup>rd</sup>, 2019 (aka 2019-04-03)<o:p></o:p></span></pre>
<pre><span lang="EN-US" style="mso-ansi-language:EN-US">We are particularly interested in hearing from working group members that are not co-authors of this draft.<o:p></o:p></span></pre>
<pre><span lang="EN-US" style="mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang="EN-US" style="mso-ansi-language:EN-US">We are also looking for volunteers who would be ready to perform a technical review of this work at some later stage, such as before or during WG the last call.<o:p></o:p></span></pre>
<pre><span lang="EN-US" style="mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang="EN-US" style="mso-ansi-language:EN-US">In parallel to this adoption call, I will send an IPR call for this document. We will need all authors and contributors to confirm their IPR position on this document.<o:p></o:p></span></pre>
<pre><span lang="EN-US" style="mso-ansi-language:EN-US">There is currently 1 IPR filled (2)<o:p></o:p></span></pre>
<pre><span lang="EN-US" style="mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style="margin-left:42.0pt;text-indent:-24.0pt;mso-list:l1 level1 lfo2"><!--[if !supportLists]--><span lang="EN-US" style="mso-fareast-font-family:&quot;Courier New&quot;;mso-ansi-language:EN-US"><span style="mso-list:Ignore">(1)<span style="font:7.0pt &quot;Times New Roman&quot;">&nbsp; </span></span></span><!--[endif]--><span lang="EN-US" style="mso-ansi-language:EN-US"><a href="https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-07">https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-07</a><o:p></o:p></span></pre>
<pre style="margin-left:42.0pt;text-indent:-24.0pt;mso-list:l1 level1 lfo2"><!--[if !supportLists]--><span lang="EN-US" style="mso-fareast-font-family:&quot;Courier New&quot;;mso-ansi-language:EN-US"><span style="mso-list:Ignore">(2)<span style="font:7.0pt &quot;Times New Roman&quot;">&nbsp; </span></span></span><!--[endif]--><span lang="EN-US" style="mso-ansi-language:EN-US"><a href="https://datatracker.ietf.org/ipr/search/?id=draft-filsfils-spring-srv6-network-programming&amp;submit=draft">https://datatracker.ietf.org/ipr/search/?id=draft-filsfils-spring-srv6-network-programming&amp;submit=draft</a><o:p></o:p></span></pre>
<pre><span lang="EN-US" style="mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang="EN-US" style="mso-ansi-language:EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre><span class="SpellE">Thank</span> <span class="SpellE">you</span>,<o:p></o:p></pre>
<pre>--Bruno &amp; Rob.<o:p></o:p></pre>
<p class="MsoNormal" style="tab-stops:179.25pt"><o:p>&nbsp;</o:p></p>
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From: Rajesh M <mrajesh@juniper.net>
To: Peter Psenak <ppsenak@cisco.com>, "cfilsfil@cisco.com" <cfilsfil@cisco.com>, "abashandy.ietf@gmail.com" <abashandy.ietf@gmail.com>, "bruno.decraene@orange.com" <bruno.decraene@orange.com>, "huzhibo@huawei.com" <huzhibo@huawei.com>
CC: Ron Bonica <rbonica@juniper.net>, SPRING WG <spring@ietf.org>, "ipv6@ietf.org" <ipv6@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/LG_lvyuLiunl9XcoV_P-MhbC-CE>
Subject: Re: [spring] draft-bashandy-isis-srv6-extensions-05.txt
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Thanks peter for response.one query

As per draft
"Each locator is a covering prefix for all SIDs provisioned on that node wh=
ich have the matching topology/algorithm"

So this means one locator per Topology/Algorithm ?


My opinion is we should have multiple locator per topology/algorithm (One M=
ain locator and rest N Anycast locator based upon requirements. N can be ze=
ro,1,2...etc)
Any cast flag should be set on Anycast locator. Main locator should be used=
 as Node SID (I mean SIDS under Main locator).

Thanks
Rajesh







-----Original Message-----
From: Peter Psenak <ppsenak@cisco.com>=20
Sent: Wednesday, March 13, 2019 6:13 PM
To: Rajesh M <mrajesh@juniper.net>; cfilsfil@cisco.com; abashandy.ietf@gmai=
l.com; bruno.decraene@orange.com; huzhibo@huawei.com
Cc: Ron Bonica <rbonica@juniper.net>; SPRING WG <spring@ietf.org>; ipv6@iet=
f.org
Subject: Re: draft-bashandy-isis-srv6-extensions-05.txt

Hi Rajesh,


On 13/03/2019 07:02 , Rajesh M wrote:
> 1)
>
> SRv6 Endpoint Function: 2 octets. As defined in=20
> [I-D.filsfils-spring-srv6-network-programming]
>
> Legal function values for this sub-TLV are defined in Section 7.
>
>
>
> This should be Section 8 I think, section 8 contains Advertising=20
> Endpoint Behaviors.
>
> Al reference to section 7 , we must change to section 8 (4 places)
>

fair enough, will fix that in the next version.

>
>
> 2)
>
>
>
> SRv6 Endpoint Function already mentions Endpoint Function Types.
>
>
>
> SIDusually will be a combination of Locator:Function:ARGS.
>
>
>
> Since SID already contains Function, why there is a need for=20
> additional
> SRv6 Endpoint Function field ? Am I missing something.


SRv6 Endpoint Function represents the behavior, which comes from
"SRv6 Endpoint Behaviors Registry". That value is not present in the 128 bi=
ts SID value, which is locally assigned by the advertising node.

thanks,
Peter





>
>
>
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>
> | Flags | SRv6 Endpoint Function |
>
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>
> | SID (128 bits) . . . |
>
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>
> | SID (cont . . .) |
>
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>
> | SID (cont . . .) |
>
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>
> | SID (cont . . .) |
>
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>
>
>


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Subject: Re: [spring] draft-bashandy-isis-srv6-extensions-05.txt
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On 24/03/2019 05:50 , Rajesh M wrote:
> Thanks peter for response.one query
>
> As per draft
> "Each locator is a covering prefix for all SIDs provisioned on that node which have the matching topology/algorithm"
>
> So this means one locator per Topology/Algorithm ?

Locator is scoped per algo and topology. You can have multiple Locators 
for the same algo/topo pair.

thanks,
Peter

>
>
> My opinion is we should have multiple locator per topology/algorithm (One Main locator and rest N Anycast locator based upon requirements. N can be zero,1,2...etc)
> Any cast flag should be set on Anycast locator. Main locator should be used as Node SID (I mean SIDS under Main locator).
>
> Thanks
> Rajesh
>
>
>
>
>
>
>
> -----Original Message-----
> From: Peter Psenak <ppsenak@cisco.com>
> Sent: Wednesday, March 13, 2019 6:13 PM
> To: Rajesh M <mrajesh@juniper.net>; cfilsfil@cisco.com; abashandy.ietf@gmail.com; bruno.decraene@orange.com; huzhibo@huawei.com
> Cc: Ron Bonica <rbonica@juniper.net>; SPRING WG <spring@ietf.org>; ipv6@ietf.org
> Subject: Re: draft-bashandy-isis-srv6-extensions-05.txt
>
> Hi Rajesh,
>
>
> On 13/03/2019 07:02 , Rajesh M wrote:
>> 1)
>>
>> SRv6 Endpoint Function: 2 octets. As defined in
>> [I-D.filsfils-spring-srv6-network-programming]
>>
>> Legal function values for this sub-TLV are defined in Section 7.
>>
>>
>>
>> This should be Section 8 I think, section 8 contains Advertising
>> Endpoint Behaviors.
>>
>> Al reference to section 7 , we must change to section 8 (4 places)
>>
>
> fair enough, will fix that in the next version.
>
>>
>>
>> 2)
>>
>>
>>
>> SRv6 Endpoint Function already mentions Endpoint Function Types.
>>
>>
>>
>> SIDusually will be a combination of Locator:Function:ARGS.
>>
>>
>>
>> Since SID already contains Function, why there is a need for
>> additional
>> SRv6 Endpoint Function field ? Am I missing something.
>
>
> SRv6 Endpoint Function represents the behavior, which comes from
> "SRv6 Endpoint Behaviors Registry". That value is not present in the 128 bits SID value, which is locally assigned by the advertising node.
>
> thanks,
> Peter
>
>
>
>
>
>>
>>
>>
>> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>>
>> | Flags | SRv6 Endpoint Function |
>>
>> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>>
>> | SID (128 bits) . . . |
>>
>> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>>
>> | SID (cont . . .) |
>>
>> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>>
>> | SID (cont . . .) |
>>
>> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>>
>> | SID (cont . . .) |
>>
>> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>>
>>
>>
>
> .
>


From nashwath@gmail.com  Fri Mar 22 09:35:21 2019
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Dear Authors,
   I am looking at the YANG file defined by you for SR, however, I noticed
that you have no support for statistics (Tx, Rx counters) in the YANG file.
Can you point me to any document that defines how  statistics can be
retrieved for a particular destination prefix sid via Netconf/Yang since
these objects are dynamic and created on the fly.?
Thanks,
-Ashwath

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<div dir=3D"ltr">Dear Authors,<div>=C2=A0 =C2=A0I am looking at the YANG fi=
le defined by you for SR, however, I noticed that you have no support for s=
tatistics (Tx, Rx counters) in the YANG file. Can you point me to any docum=
ent that defines how=C2=A0 statistics can be retrieved for a particular des=
tination prefix sid via Netconf/Yang since these objects are dynamic and cr=
eated on the fly.?</div><div>Thanks,</div><div>-Ashwath</div></div>

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From: Rajesh M <mrajesh@juniper.net>
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Hi All,

Please find few comments on this draft.

  1.  Its better to have SRv6 Locator TLV similar to what is there in draft=
-bashandy-isis-srv6-extensions-05.



  1.  Draft says O-flag: If set, then router is capable of supporting SRH O=
-bit

Flags, as specified in [I-D.ietf-6man-segment-routing-header]. This must be


      O-flag: If set, the router supports use of the O-bit
      in the Segment Routing Header(SRH) as defined in

[I-D.ali-spring-srv6-oam].


  1.  SRv6 SID Link Attribute Sub-TLV, SRv6 SID LAN Link Attribute Sub-TLV =
here SID Flags must define


B-Flag: Backup flag.
S-Flag. Set flag.
P-Flag. Persistent flag.

Thanks
Rajesh




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<p class=3D"MsoNormal">Hi All,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Please find few comments on this draft.<o:p></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 =
lfo1">Its better to have
<span style=3D"font-size:10.0pt;font-family:Courier">SRv6 Locator TLV </spa=
n>similar to what is there in draft-bashandy-isis-srv6-extensions-05.<o:p><=
/o:p></li></ol>
<p class=3D"MsoListParagraph" style=3D"text-autospace:none"><span style=3D"=
font-size:10.0pt;font-family:Courier;color:black"><o:p>&nbsp;</o:p></span><=
/p>
<ol style=3D"margin-top:0in" start=3D"2" type=3D"1">
<li class=3D"MsoListParagraph" style=3D"color:black;margin-left:0in;mso-lis=
t:l0 level1 lfo1;text-autospace:none">
<span style=3D"font-size:10.0pt;font-family:Courier">Draft says O-flag: If =
set, then router is capable of supporting SRH O-bit<o:p></o:p></span></li><=
/ol>
<p class=3D"MsoListParagraph"><span style=3D"font-size:10.0pt;font-family:C=
ourier;color:black">Flags, as specified in [</span><span style=3D"font-size=
:10.0pt;font-family:Courier;color:blue">I-D.ietf-6man-segment-routing-heade=
r</span><span style=3D"font-size:10.0pt;font-family:Courier;color:black">].
 This must be<o:p></o:p></span></p>
<p class=3D"MsoListParagraph"><span style=3D"font-size:10.0pt;font-family:C=
ourier;color:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:10.0pt;font-family:Courier;color:black">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; O=
-flag: If set, the router supports use of the O-bit<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:10.0pt;font-family:Courier;color:black">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; i=
n the Segment Routing Header(SRH) as defined in<o:p></o:p></span></p>
<p class=3D"MsoListParagraph"><span style=3D"font-size:10.0pt;font-family:C=
ourier;color:black">[</span><span style=3D"font-size:10.0pt;font-family:Cou=
rier;color:blue">I-D.ali-spring-srv6-oam</span><span style=3D"font-size:10.=
0pt;font-family:Courier;color:black">].<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:Courier;=
color:black">&nbsp;&nbsp;&nbsp;
<o:p></o:p></span></p>
<ol style=3D"margin-top:0in" start=3D"3" type=3D"1">
<li class=3D"MsoListParagraph" style=3D"color:black;margin-left:0in;mso-lis=
t:l0 level1 lfo1">
<span style=3D"font-size:10.0pt;font-family:Courier;color:windowtext">SRv6 =
SID Link Attribute Sub-TLV, SRv6 SID LAN Link Attribute Sub-TLV here SID Fl=
ags must define</span><span style=3D"font-size:10.0pt;font-family:Courier">=
<o:p></o:p></span></li></ol>
<p class=3D"MsoListParagraph"><span style=3D"font-size:10.0pt;font-family:C=
ourier"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:10.0pt;font-family:Courier;color:black">B-Flag: Backup flag.
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:10.0pt;font-family:Courier;color:black">S-Flag. Set flag.
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:10.0pt;font-family:Courier;color:black">P-Flag. Persistent flag.
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:10.0pt;font-family:Courier;color:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:10.0pt;font-family:Courier;color:black">Thanks<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:10.0pt;font-family:Courier;color:black">Rajesh<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:10.0pt;font-family:Courier;color:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoListParagraph"><o:p>&nbsp;</o:p></p>
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From: "Ketan Talaulikar (ketant)" <ketant@cisco.com>
To: Rajesh M <mrajesh@juniper.net>, "lizhenbin@huawei.com" <lizhenbin@huawei.com>, "huzhibo@huawei.com" <huzhibo@huawei.com>, "dean.cheng@huawei.com" <dean.cheng@huawei.com>, "Peter Psenak (ppsenak)" <ppsenak@cisco.com>
CC: Ron Bonica <rbonica@juniper.net>, SPRING WG <spring@ietf.org>
Thread-Topic: draft-li-ospf-ospfv3-srv6-extensions-03
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Subject: Re: [spring] draft-li-ospf-ospfv3-srv6-extensions-03
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Hi Rajesh,

Thanks for your review of the draft. As you've noticed, this draft is not y=
et in sync with the IS-IS SRv6 specifications. Please expect an update to t=
his draft soon - likely during this IETF week or shortly thereafter.

Thanks,
Ketan

From: Rajesh M <mrajesh@juniper.net>
Sent: 24 March 2019 20:02
To: lizhenbin@huawei.com; huzhibo@huawei.com; dean.cheng@huawei.com; Ketan =
Talaulikar (ketant) <ketant@cisco.com>; Peter Psenak (ppsenak) <ppsenak@cis=
co.com>
Cc: Ron Bonica <rbonica@juniper.net>; SPRING WG <spring@ietf.org>
Subject: draft-li-ospf-ospfv3-srv6-extensions-03

Hi All,

Please find few comments on this draft.

  1.  Its better to have SRv6 Locator TLV similar to what is there in draft=
-bashandy-isis-srv6-extensions-05.



  1.  Draft says O-flag: If set, then router is capable of supporting SRH O=
-bit

Flags, as specified in [I-D.ietf-6man-segment-routing-header]. This must be


      O-flag: If set, the router supports use of the O-bit
      in the Segment Routing Header(SRH) as defined in

[I-D.ali-spring-srv6-oam].


  1.  SRv6 SID Link Attribute Sub-TLV, SRv6 SID LAN Link Attribute Sub-TLV =
here SID Flags must define


B-Flag: Backup flag.
S-Flag. Set flag.
P-Flag. Persistent flag.

Thanks
Rajesh




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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US">Hi Rajesh=
,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US">Thanks fo=
r your review of the draft. As you&#8217;ve noticed, this draft is not yet =
in sync with the IS-IS SRv6 specifications. Please expect an update to this=
 draft soon &#8211; likely during this IETF week
 or shortly thereafter. <o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US">Thanks,<o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US">Ketan<o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US"><o:p>&nbs=
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">From:</span></b><span lang=
=3D"EN-US"> Rajesh M &lt;mrajesh@juniper.net&gt;
<br>
<b>Sent:</b> 24 March 2019 20:02<br>
<b>To:</b> lizhenbin@huawei.com; huzhibo@huawei.com; dean.cheng@huawei.com;=
 Ketan Talaulikar (ketant) &lt;ketant@cisco.com&gt;; Peter Psenak (ppsenak)=
 &lt;ppsenak@cisco.com&gt;<br>
<b>Cc:</b> Ron Bonica &lt;rbonica@juniper.net&gt;; SPRING WG &lt;spring@iet=
f.org&gt;<br>
<b>Subject:</b> draft-li-ospf-ospfv3-srv6-extensions-03<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-US">Hi All,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Please find few comments on thi=
s draft.<o:p></o:p></span></p>
<ol style=3D"margin-top:0cm" start=3D"1" type=3D"1">
<li class=3D"MsoNormal" style=3D"mso-list:l0 level1 lfo3"><span lang=3D"EN-=
US">Its better to have
</span><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:Courier">=
SRv6 Locator TLV
</span><span lang=3D"EN-US">similar to what is there in draft-bashandy-isis=
-srv6-extensions-05.<o:p></o:p></span></li></ol>
<p class=3D"MsoListParagraph" style=3D"text-autospace:none"><span lang=3D"E=
N-US" style=3D"font-size:10.0pt;font-family:Courier;color:black"><o:p>&nbsp=
;</o:p></span></p>
<ol style=3D"margin-top:0cm" start=3D"2" type=3D"1">
<li class=3D"MsoNormal" style=3D"color:black;mso-list:l0 level1 lfo3;text-a=
utospace:none">
<span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:Courier">Draft s=
ays O-flag: If set, then router is capable of supporting SRH O-bit<o:p></o:=
p></span></li></ol>
<p class=3D"MsoListParagraph"><span lang=3D"EN-US" style=3D"font-size:10.0p=
t;font-family:Courier;color:black">Flags, as specified in [</span><span lan=
g=3D"EN-US" style=3D"font-size:10.0pt;font-family:Courier;color:blue">I-D.i=
etf-6man-segment-routing-header</span><span lang=3D"EN-US" style=3D"font-si=
ze:10.0pt;font-family:Courier;color:black">].
 This must be<o:p></o:p></span></p>
<p class=3D"MsoListParagraph"><span lang=3D"EN-US" style=3D"font-size:10.0p=
t;font-family:Courier;color:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span lang=3D"EN-US" s=
tyle=3D"font-size:10.0pt;font-family:Courier;color:black">&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp; O-flag: If set, the router supports use of the O-bit<o:p></o:=
p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span lang=3D"EN-US" s=
tyle=3D"font-size:10.0pt;font-family:Courier;color:black">&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp; in the Segment Routing Header(SRH) as defined in<o:p></o:p></=
span></p>
<p class=3D"MsoListParagraph"><span lang=3D"EN-US" style=3D"font-size:10.0p=
t;font-family:Courier;color:black">[</span><span lang=3D"EN-US" style=3D"fo=
nt-size:10.0pt;font-family:Courier;color:blue">I-D.ali-spring-srv6-oam</spa=
n><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:Courier;color:=
black">].<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-=
family:Courier;color:black">&nbsp;&nbsp;&nbsp;
<o:p></o:p></span></p>
<ol style=3D"margin-top:0cm" start=3D"3" type=3D"1">
<li class=3D"MsoNormal" style=3D"color:black;mso-list:l0 level1 lfo3"><span=
 lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:Courier;color:windowt=
ext">SRv6 SID Link Attribute Sub-TLV, SRv6 SID LAN Link Attribute Sub-TLV h=
ere SID Flags must define</span><span lang=3D"EN-US" style=3D"font-size:10.=
0pt;font-family:Courier"><o:p></o:p></span></li></ol>
<p class=3D"MsoListParagraph"><span lang=3D"EN-US" style=3D"font-size:10.0p=
t;font-family:Courier"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span lang=3D"EN-US" s=
tyle=3D"font-size:10.0pt;font-family:Courier;color:black">B-Flag: Backup fl=
ag.
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span lang=3D"EN-US" s=
tyle=3D"font-size:10.0pt;font-family:Courier;color:black">S-Flag. Set flag.
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span lang=3D"EN-US" s=
tyle=3D"font-size:10.0pt;font-family:Courier;color:black">P-Flag. Persisten=
t flag.
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span lang=3D"EN-US" s=
tyle=3D"font-size:10.0pt;font-family:Courier;color:black"><o:p>&nbsp;</o:p>=
</span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span lang=3D"EN-US" s=
tyle=3D"font-size:10.0pt;font-family:Courier;color:black">Thanks<o:p></o:p>=
</span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span lang=3D"EN-US" s=
tyle=3D"font-size:10.0pt;font-family:Courier;color:black">Rajesh<o:p></o:p>=
</span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span lang=3D"EN-US" s=
tyle=3D"font-size:10.0pt;font-family:Courier;color:black"><o:p>&nbsp;</o:p>=
</span></p>
<p class=3D"MsoListParagraph"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span>=
</p>
</div>
</body>
</html>

--_000_SN6PR11MB284543E4539D19F0694F5D2FC15D0SN6PR11MB2845namp_--


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Subject: Re: [spring] I-D Action: draft-matsushima-spring-srv6-deployment-status-00.txt
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Hello spring wg folks,
# posted to 6man as well.

We=E2=80=99ve submitted a draft that to bring latest deployment status of S=
Rv6
in operators networks.

We authors hope that it helps to progress the discussion in spring wg.

Cheers,
--satoru

>
> A New Internet-Draft is available from the on-line Internet-Drafts direct=
ories.
>
>
>        Title           : SRv6 Implementation and Deployment Status
>        Authors         : Satoru Matsushima
>                          Clarence Filsfils
>                          Zafar Ali
>                          Zhenbin Li
>    Filename        : draft-matsushima-spring-srv6-deployment-status-00.tx=
t
>    Pages           : 16
>    Date            : 2019-03-24
>
> Abstract:
>   This draft provides an overview of IPv6 Segment Routing (SRv6)
>   deployment status.  It lists various SRv6 features that have been
>   deployed in the production networks.  It also provides an overview of
>   SRv6 implementation and interoperability testing status.
>
>
>
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-matsushima-spring-srv6-deployment-=
status/
>
> There are also htmlized versions available at:
> https://tools.ietf.org/html/draft-matsushima-spring-srv6-deployment-statu=
s-00
> https://datatracker.ietf.org/doc/html/draft-matsushima-spring-srv6-deploy=
ment-status-00
>
>
> Please note that it may take a couple of minutes from the time of submiss=
ion
> 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/
>
> _______________________________________________
> I-D-Announce mailing list
> I-D-Announce@ietf.org
> https://www.ietf.org/mailman/listinfo/i-d-announce
> Internet-Draft directories: http://www.ietf.org/shadow.html
> or ftp://ftp.ietf.org/ietf/1shadow-sites.txt


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From: Przemyslaw Krol <pkrol@google.com>
Date: Mon, 25 Mar 2019 08:28:14 +0100
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/2uME092eI5NodJ4XfZMqRvKPmJc>
Subject: Re: [spring] IANA assignment for Policy Name, ENLP, Priority Sub-TLVs
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--000000000000f840c10584e627a2
Content-Type: text/plain; charset="UTF-8"

Greetings,

Not a major issue but wanted to confirm if there is any progress with this
one.

thanks,
pk

On Mon, Dec 3, 2018 at 5:42 PM Przemyslaw Krol <pkrol@google.com> wrote:

> Greetings,
>
> Has the process for IANA Type # allocation for Policy Name Sub-TLV
> <https://tools.ietf.org/html/draft-ietf-idr-segment-routing-te-policy-05#section-2.4.6> been
> initiated yet?
> Same applies to ENLP and Priority Sub-TLVs, fwiw.
>
> Thank you,
> pk
>
> --
> Przemyslaw "PK" Krol |  Strategic Network Engineer ing | pkrol@google.com
>


-- 
Przemyslaw "PK" Krol |  Strategic Network Engineer ing | pkrol@google.com

--000000000000f840c10584e627a2
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Greetings,<div><br></div><div>Not a major issue but wanted=
 to confirm if there is any progress with this one.</div><div><br></div><di=
v>thanks,</div><div>pk</div></div><br><div class=3D"gmail_quote"><div dir=
=3D"ltr" class=3D"gmail_attr">On Mon, Dec 3, 2018 at 5:42 PM Przemyslaw Kro=
l &lt;<a href=3D"mailto:pkrol@google.com">pkrol@google.com</a>&gt; wrote:<b=
r></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">=
Greetings,<div><br></div><div>Has the process for IANA Type # allocation fo=
r=C2=A0<a href=3D"https://tools.ietf.org/html/draft-ietf-idr-segment-routin=
g-te-policy-05#section-2.4.6" target=3D"_blank">Policy Name Sub-TLV</a>=C2=
=A0been initiated yet?</div><div>Same applies to ENLP and Priority Sub-TLVs=
, fwiw.</div><div><br></div><div>Thank you,</div><div>pk<br clear=3D"all"><=
div><br></div>-- <br><div dir=3D"ltr" class=3D"gmail-m_-4808724222619945599=
gmail_signature"><div dir=3D"ltr"><div><div dir=3D"ltr"><div><div dir=3D"lt=
r"><div><div dir=3D"ltr"><div><div dir=3D"ltr"><div><div dir=3D"ltr"><div><=
div style=3D"padding-top:10px;margin-top:10px"><table cellspacing=3D"0" cel=
lpadding=3D"0" style=3D"color:rgb(0,0,0);font-family:Times;line-height:norm=
al;font-size:medium"><tbody><tr style=3D"color:rgb(85,85,85);font-family:sa=
ns-serif;font-size:small"><td nowrap style=3D"border-top:2px solid rgb(213,=
15,37)">Przemyslaw &quot;PK&quot; Krol |</td><td nowrap style=3D"border-top=
:2px solid rgb(51,105,232)">=C2=A0Strategic Network Engineer</td><td nowrap=
 style=3D"border-top:2px solid rgb(0,153,57)"><span style=3D"line-height:19=
px;white-space:normal"><span style=3D"border-width:2px 0px 0px;border-style=
:solid;border-color:rgb(51,105,232);padding-top:2px;margin-top:2px">ing |</=
span><span style=3D"border-width:2px 0px 0px;border-style:solid;border-colo=
r:rgb(0,153,57);padding-top:2px;margin-top:2px">=C2=A0<a href=3D"mailto:pkr=
ol@google.com" target=3D"_blank"><font color=3D"#1155cc">pkrol@google.com</=
font></a>=C2=A0</span></span></td><td nowrap style=3D"border-top:2px solid =
rgb(238,178,17)"><br></td></tr></tbody></table></div></div></div></div></di=
v></div></div></div></div></div></div></div></div></div></div></div>
</blockquote></div><br clear=3D"all"><div><br></div>-- <br><div dir=3D"ltr"=
 class=3D"gmail_signature"><div dir=3D"ltr"><div><div dir=3D"ltr"><div><div=
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From: "PEIRENS Bart (TSI/MST)" <bart.peirens@proximus.com>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, SPRING WG <spring@ietf.org>
CC: "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
Thread-Topic: IPR Poll for draft-filsfils-spring-srv6-network-programming
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Date: Mon, 25 Mar 2019 08:59:42 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/yBYQQn6u9DXJXCKXC-3G7Wg8sLw>
Subject: Re: [spring] IPR Poll for draft-filsfils-spring-srv6-network-programming
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Hi,

As a contributor, not aware of any IPR that has not yet been disclosed.

Bart



This e-mail cannot be used for other purposes than Proximus business use. S=
ee more on https://www.proximus.be/maildisclaimer
From: bruno.decraene@orange.com <bruno.decraene@orange.com>
Sent: Wednesday, March 13, 2019 7:50 PM
To: SPRING WG <spring@ietf.org>
Cc: draft-filsfils-spring-srv6-network-programming@ietf.org
Subject: IPR Poll for draft-filsfils-spring-srv6-network-programming


Hi authors, SPRING WG,



In parallel to the call for adoption for draft-filsfils-spring-srv6-network=
-programming (1), we would like to poll for IPR.



If you are aware of IPR that applies to draft-filsfils-spring-srv6-network-=
programming please respond to this email.

If you are aware of IPR, please indicate whether it has been disclosed in a=
ccordance 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.

If you are not an author or contributor, please explicitly respond only if =
you are aware of IPR that has not yet been disclosed.



This document will not advance into the working group until IPR confirmatio=
ns have been received from all authors and contributors.



Thank you,



(1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-program=
ming-07





--Bruno & Rob.


___________________________________________________________________________=
______________________________________________



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<p class=3D"MsoNormal">Hi,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">As a contributor, not aware of any IPR <span lang=3D=
"EN-US">that has not yet been disclosed.</span><o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Bart<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-GB"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"msipfooterd5aff128" align=3D"center" style=3D"margin:0cm;margin=
-bottom:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:#737373">This e-mail cannot be used fo=
r other purposes than Proximus business use. See more on https://www.proxim=
us.be/maildisclaimer
</span><o:p></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-GB">From:</span></b><span lang=3D"EN-US" style=3D"mso-fareast-language=
:EN-GB"> bruno.decraene@orange.com &lt;bruno.decraene@orange.com&gt;
<br>
<b>Sent:</b> Wednesday, March 13, 2019 7:50 PM<br>
<b>To:</b> SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Cc:</b> draft-filsfils-spring-srv6-network-programming@ietf.org<br>
<b>Subject:</b> IPR Poll for draft-filsfils-spring-srv6-network-programming=
<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 authors, 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">In parallel to the call for adoption for draft-fi=
lsfils-spring-srv6-network-programming (1), we would like to poll for IPR.<=
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 are aware of IPR that applies to draft-fil=
sfils-spring-srv6-network-programming please respond to this email.<o:p></o=
:p></span></pre>
<pre><span lang=3D"EN-US">If you are aware of IPR, please indicate whether =
it has been disclosed in accordance with IETF IPR rules (RFCs 3979, 4879, 3=
669 and 5378 provide more details).<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 are an *author or contributor* please resp=
ond to this email regardless of whether or not you're aware of any IPR.<o:p=
></o:p></span></pre>
<pre><span lang=3D"EN-US">If you are not an author or contributor, please e=
xplicitly respond only if you are aware of IPR that has not yet been disclo=
sed.<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 document will not advance into the working g=
roup until IPR confirmations have been received from all authors and contri=
butors.<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">Thank you,<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"margin-left:24.0pt;text-indent:-24.0pt;mso-list:l0 level1 lfo=
2"><![if !supportLists]><span lang=3D"EN-US"><span style=3D"mso-list:Ignore=
">(1)<span style=3D"font:7.0pt &quot;Times New Roman&quot;">&nbsp; </span><=
/span></span><![endif]><span lang=3D"EN-US"><a href=3D"https://tools.ietf.o=
rg/html/draft-filsfils-spring-srv6-network-programming-07">https://tools.ie=
tf.org/html/draft-filsfils-spring-srv6-network-programming-07</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"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">--Bruno &amp; Rob.<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=
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From pier.luigi.ventre@uniroma2.it  Sun Mar 24 14:42:39 2019
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From: Pier Luigi Ventre <pier.luigi.ventre@uniroma2.it>
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Cc: SPRING WG <spring@ietf.org>, "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
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Hello,
we support the adoption of this draft.

Thanks
Pier

> On Mar 13, 2019, at 11:49 AM, <bruno.decraene@orange.com> =
<bruno.decraene@orange.com> wrote:
>=20
> Hi SPRING WG,
> =20
> This email initiates a three week call for working group adoption for =
draft-filsfils-spring-srv6-network-programming. (Three weeks to account =
for the IETF week)
> =20
> Please indicate your support, comments, or objection, for adopting =
this draft as a working group item by April, 3rd, 2019 (aka 2019-04-03)
> We are particularly interested in hearing from working group members =
that are not co-authors of this draft.
> =20
> We are also looking for volunteers who would be ready to perform a =
technical review of this work at some later stage, such as before or =
during WG the last call.
> =20
> In parallel to this adoption call, I will send an IPR call for this =
document. We will need all authors and contributors to confirm their IPR =
position on this document.
> There is currently 1 IPR filled (2)
> =20
> (1)  =
https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming=
-07 =
<https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programmin=
g-07>
> (2)  =
https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-srv6-n=
etwork-programming&submit=3Ddraft =
<https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-spring-srv6-=
network-programming&submit=3Ddraft>
> =20
> =20
> Thank you,
> --Bruno & Rob.
> =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.
> _______________________________________________
> spring mailing list
> spring@ietf.org <mailto:spring@ietf.org>
> https://www.ietf.org/mailman/listinfo/spring =
<https://www.ietf.org/mailman/listinfo/spring>

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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dus-ascii"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" =
class=3D"">Hello,<div class=3D"">we support the adoption of this =
draft.</div><div class=3D""><br class=3D""></div><div =
class=3D"">Thanks</div><div class=3D"">Pier<br class=3D""><div><br =
class=3D""><blockquote type=3D"cite" class=3D""><div class=3D"">On Mar =
13, 2019, at 11:49 AM, &lt;<a href=3D"mailto:bruno.decraene@orange.com" =
class=3D"">bruno.decraene@orange.com</a>&gt; &lt;<a =
href=3D"mailto:bruno.decraene@orange.com" =
class=3D"">bruno.decraene@orange.com</a>&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><div =
class=3D"WordSection1" style=3D"page: WordSection1; caret-color: rgb(0, =
0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
text-decoration: none;"><pre style=3D"margin: 0cm 0cm 0.0001pt; =
font-size: 10pt; font-family: &quot;Courier New&quot;;" class=3D""><span =
lang=3D"EN-US" class=3D"">Hi SPRING WG,<o:p =
class=3D""></o:p></span></pre><pre style=3D"margin: 0cm 0cm 0.0001pt; =
font-size: 10pt; font-family: &quot;Courier New&quot;;" class=3D""><span =
lang=3D"EN-US" class=3D""><o:p class=3D"">&nbsp;</o:p></span></pre><pre =
style=3D"margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: =
&quot;Courier New&quot;;" class=3D""><span lang=3D"EN-US" class=3D"">This =
email initiates a three week call for working group adoption for =
draft-filsfils-spring-srv6-network-programming. (Three weeks to account =
for the IETF week)<o:p class=3D""></o:p></span></pre><pre style=3D"margin:=
 0cm 0cm 0.0001pt; font-size: 10pt; font-family: &quot;Courier =
New&quot;;" class=3D""><span lang=3D"EN-US" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></pre><pre style=3D"margin: 0cm 0cm =
0.0001pt; font-size: 10pt; font-family: &quot;Courier New&quot;;" =
class=3D""><span lang=3D"EN-US" class=3D"">Please indicate your support, =
comments, or objection, for adopting this draft as a working group item =
by April, 3<sup class=3D"">rd</sup>, 2019 (aka 2019-04-03)<o:p =
class=3D""></o:p></span></pre><pre style=3D"margin: 0cm 0cm 0.0001pt; =
font-size: 10pt; font-family: &quot;Courier New&quot;;" class=3D""><span =
lang=3D"EN-US" class=3D"">We are particularly interested in hearing from =
working group members that are not co-authors of this draft.<o:p =
class=3D""></o:p></span></pre><pre style=3D"margin: 0cm 0cm 0.0001pt; =
font-size: 10pt; font-family: &quot;Courier New&quot;;" class=3D""><span =
lang=3D"EN-US" class=3D""><o:p class=3D"">&nbsp;</o:p></span></pre><pre =
style=3D"margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: =
&quot;Courier New&quot;;" class=3D""><span lang=3D"EN-US" class=3D"">We =
are also looking for volunteers who would be ready to perform a =
technical review of this work at some later stage, such as before or =
during WG the last call.<o:p class=3D""></o:p></span></pre><pre =
style=3D"margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: =
&quot;Courier New&quot;;" class=3D""><span lang=3D"EN-US" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></pre><pre style=3D"margin: 0cm 0cm =
0.0001pt; font-size: 10pt; font-family: &quot;Courier New&quot;;" =
class=3D""><span lang=3D"EN-US" class=3D"">In parallel to this adoption =
call, I will send an IPR call for this document. We will need all =
authors and contributors to confirm their IPR position on this =
document.<o:p class=3D""></o:p></span></pre><pre style=3D"margin: 0cm =
0cm 0.0001pt; font-size: 10pt; font-family: &quot;Courier New&quot;;" =
class=3D""><span lang=3D"EN-US" class=3D"">There is currently 1 IPR =
filled (2)<o:p class=3D""></o:p></span></pre><pre style=3D"margin: 0cm =
0cm 0.0001pt; font-size: 10pt; font-family: &quot;Courier New&quot;;" =
class=3D""><span lang=3D"EN-US" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></pre><pre style=3D"margin: 0cm 0cm =
0.0001pt 42pt; font-size: 10pt; font-family: &quot;Courier New&quot;; =
text-indent: -24pt;" class=3D""><span lang=3D"EN-US" class=3D""><span =
class=3D"">(1)<span style=3D"font-style: normal; font-variant-caps: =
normal; font-weight: normal; font-stretch: normal; font-size: 7pt; =
line-height: normal; font-family: &quot;Times New Roman&quot;;" =
class=3D"">&nbsp; </span></span></span><span lang=3D"EN-US" class=3D""><a =
href=3D"https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-pro=
gramming-07" style=3D"color: purple; text-decoration: underline;" =
class=3D"">https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-=
programming-07</a><o:p class=3D""></o:p></span></pre><pre style=3D"margin:=
 0cm 0cm 0.0001pt 42pt; font-size: 10pt; font-family: &quot;Courier =
New&quot;; text-indent: -24pt;" class=3D""><span lang=3D"EN-US" =
class=3D""><span class=3D"">(2)<span style=3D"font-style: normal; =
font-variant-caps: normal; font-weight: normal; font-stretch: normal; =
font-size: 7pt; line-height: normal; font-family: &quot;Times New =
Roman&quot;;" class=3D"">&nbsp; </span></span></span><span lang=3D"EN-US" =
class=3D""><a =
href=3D"https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-sprin=
g-srv6-network-programming&amp;submit=3Ddraft" style=3D"color: purple; =
text-decoration: underline;" =
class=3D"">https://datatracker.ietf.org/ipr/search/?id=3Ddraft-filsfils-sp=
ring-srv6-network-programming&amp;submit=3Ddraft</a><o:p =
class=3D""></o:p></span></pre><pre style=3D"margin: 0cm 0cm 0.0001pt; =
font-size: 10pt; font-family: &quot;Courier New&quot;;" class=3D""><span =
lang=3D"EN-US" class=3D""><o:p class=3D"">&nbsp;</o:p></span></pre><pre =
style=3D"margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: =
&quot;Courier New&quot;;" class=3D""><span lang=3D"EN-US" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></pre><pre style=3D"margin: 0cm 0cm =
0.0001pt; font-size: 10pt; font-family: &quot;Courier New&quot;;" =
class=3D""><span class=3D"SpellE">Thank</span> <span =
class=3D"SpellE">you</span>,<o:p class=3D""></o:p></pre><pre =
style=3D"margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: =
&quot;Courier New&quot;;" class=3D"">--Bruno &amp; Rob.<o:p =
class=3D""></o:p></pre><div style=3D"margin: 0cm 0cm 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></div></div><pre style=3D"margin: 0cm 0cm =
0.0001pt; font-size: 10pt; font-family: &quot;Courier New&quot;; =
caret-color: rgb(0, 0, 0); font-style: normal; font-variant-caps: =
normal; font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none;" =
class=3D"">_______________________________________________________________=
__________________________________________________________

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.
</pre><span style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-caps: normal; =
font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none; float: none; display: inline !important;" =
class=3D"">_______________________________________________</span><br =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: =
normal; letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none;" class=3D""><span =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: =
normal; letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none; float: none; =
display: inline !important;" class=3D"">spring mailing list</span><br =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: =
normal; letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none;" class=3D""><a =
href=3D"mailto:spring@ietf.org" style=3D"color: purple; text-decoration: =
underline; font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
orphans: auto; text-align: start; text-indent: 0px; text-transform: =
none; white-space: normal; widows: auto; word-spacing: 0px; =
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class=3D"">spring@ietf.org</a><br style=3D"caret-color: rgb(0, 0, 0); =
font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
text-decoration: none;" class=3D""><a =
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purple; text-decoration: underline; font-family: Helvetica; font-size: =
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text-indent: 0px; text-transform: none; white-space: normal; widows: =
auto; word-spacing: 0px; -webkit-text-size-adjust: auto; =
-webkit-text-stroke-width: 0px;" =
class=3D"">https://www.ietf.org/mailman/listinfo/spring</a></div></blockqu=
ote></div><br class=3D""></div></body></html>=

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From: "Ketan Talaulikar (ketant)" <ketant@cisco.com>
To: Przemyslaw Krol <pkrol=40google.com@dmarc.ietf.org>, "draft-ietf-idr-segment-routing-te-policy@ietf.org" <draft-ietf-idr-segment-routing-te-policy@ietf.org>
CC: "spring@ietf.org" <spring@ietf.org>, "idr@ietf.org" <idr@ietf.org>, "idr-chairs@ietf.org" <idr-chairs@ietf.org>, "Shyam Sethuram (shsethur)" <shsethur@cisco.com>
Thread-Topic: [spring] IANA assignment for Policy Name, ENLP, Priority Sub-TLVs
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Date: Tue, 26 Mar 2019 08:51:13 +0000
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Subject: Re: [spring] IANA assignment for Policy Name, ENLP, Priority Sub-TLVs
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From: "Chengli (Cheng Li)" <chengli13@huawei.com>
To: "ippm@ietf.org" <ippm@ietf.org>
CC: "spring@ietf.org" <spring@ietf.org>, "6man@ietf.org" <6man@ietf.org>, Tianran Zhou <zhoutianran@huawei.com>, Lizhenbin <lizhenbin@huawei.com>
Thread-Topic: A Light Weight iOAM in SRv6 to eliminate the large overhead of IOAM metadata
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Date: Wed, 27 Mar 2019 13:07:28 +0000
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Subject: [spring] A Light Weight iOAM in SRv6 to eliminate the large overhead of IOAM metadata
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Hi iOAMers,

We proposed a light SRv6 iOAM method in SPRING: https://tools.ietf.org/html=
/draft-li-spring-light-weight-srv6-ioam-00

In our method, the IOAM data can reuse the space of SID list, which won't e=
xtend the length of header.

It may be a complementary solution to solve the problem of large overhead o=
f IOAM packets, which is a pain for hardware.

Hope it help your discussion in IOAM side meetings.

Also copy to Spring and 6man since there two WGs are related to this draft.

Comments and questions are welcome!

Thanks,
Cheng

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fy-trim:punctuation">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US">Hi iOAMers,<o:p></o:p></span></=
p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">We proposed a light SRv6 iOAM m=
ethod in SPRING:
<a href=3D"https://tools.ietf.org/html/draft-li-spring-light-weight-srv6-io=
am-00">https://tools.ietf.org/html/draft-li-spring-light-weight-srv6-ioam-0=
0</a><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">In our method, the IOAM data ca=
n reuse the space of SID list, which won&#8217;t extend the length of heade=
r.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">It may be a complementary solut=
ion to solve the problem of large overhead of IOAM packets, which is a pain=
 for hardware.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Hope it help your discussion in=
 IOAM side meetings.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Also copy to Spring and 6man si=
nce there two WGs are related to this draft.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Comments and questions are welc=
ome!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Cheng<o:p></o:p></span></p>
</div>
</body>
</html>

--_000_C7C2E1C43D652C4E9E49FE7517C236CB025AA7BEdggeml529mbxchi_--


From nobody Wed Mar 27 06:38:11 2019
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From: James N Guichard <james.n.guichard@huawei.com>
To: "spring@ietf.org" <spring@ietf.org>, "6man@ietf.org" <6man@ietf.org>
CC: James N Guichard <james.n.guichard@huawei.com>
Thread-Topic: I-D Action: draft-guichard-spring-srv6-simplified-firewall-00.txt
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Subject: [spring] FW: I-D Action: draft-guichard-spring-srv6-simplified-firewall-00.txt
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Dear WGs:

The applicability of Service Function Chaining with metadata in the SRv6 Ne=
twork Programming model is obvious.

This document describes a scalable firewall use-case, that decreases the nu=
mber of rules by one to two orders of magnitude by leveraging source and de=
stination class information in the SRH TLV.

The TLV is populated by the head-end node and a lookup is triggered by the =
firewall's service SID function. Any other intermediate SR endpoint simply =
ignores the TLV, such that its presence in the SRH has no impact on the pac=
ket processing behavior or performance.

The draft builds on the network programmability capability of SRv6. Specifi=
cally, the ability for an intermediate SRv6 endpoint to determine whether t=
o process or ignore some specific SRH TLVs based on the SID function. This =
allows service and underlay instructions to be combined in the same segment=
 list without restrictions on the service capabilities or performance degra=
dation in the routers processing underlay instructions.

This document is supported by PoC implementation in FD.io VPP and the iptab=
les-based SERA firewall .

Thanks!

-----Original Message-----
From: I-D-Announce [mailto:i-d-announce-bounces@ietf.org] On Behalf Of inte=
rnet-drafts@ietf.org
Sent: Monday, March 25, 2019 10:42 AM
To: i-d-announce@ietf.org
Subject: I-D Action: draft-guichard-spring-srv6-simplified-firewall-00.txt


A New Internet-Draft is available from the on-line Internet-Drafts director=
ies.


        Title           : Simplifying Firewall Rules with Network Programmi=
ng and SRH Metadata
        Authors         : James N Guichard
                          Clarence Filsfils
                          Daniel Bernier
                          Zhenbin Li
                          Francois Clad
                          Pablo Camarillo
                          Ahmed AbdelSalam
	Filename        : draft-guichard-spring-srv6-simplified-firewall-00.txt
	Pages           : 7
	Date            : 2019-03-25

Abstract:
   A clear application of the SRv6 Network Programming model consists in
   steering, in a stateless manner, packets through a Service Function
   Chain (SFC).  Each Service Function (SF) is identified by a segment.
   Each SF can enrich its operation thanks to metadata present in the
   SRH.

   This document describes a practical use-case where the SF is a
   firewall and the metadata helps to drastically decrease the number of
   rules that need to be maintained by the operation team.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-guichard-spring-srv6-simplified-fire=
wall/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-guichard-spring-srv6-simplified-firewall-=
00
https://datatracker.ietf.org/doc/html/draft-guichard-spring-srv6-simplified=
-firewall-00


Please note that it may take a couple of minutes from the time of submissio=
n 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/

_______________________________________________
I-D-Announce mailing list
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https://www.ietf.org/mailman/listinfo/i-d-announce
Internet-Draft directories: http://www.ietf.org/shadow.html or ftp://ftp.ie=
tf.org/ietf/1shadow-sites.txt


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--_000_72C3FCF4881E43D79388D357274A45E8ciscocom_--


From nobody Wed Mar 27 08:09:35 2019
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From: <bruno.decraene@orange.com>
To: SPRING WG <spring@ietf.org>
Thread-Topic: IETF 104 - SPRING meeting
Thread-Index: AdTSqhk24exiZ+23QbuJduuz+vEk/QIqI6PwAlbR20A=
Date: Wed, 27 Mar 2019 15:08:15 +0000
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Subject: Re: [spring] IETF 104 - SPRING meeting
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Hi presenters,

> Please send your slides to both chairs before Tuesday, March 26, 13:00 lo=
cal time. Earlier is better. Sending PDF is usually better (than the automa=
tic conversion).

Please send your slides to both chairs.
Now, would be a good time.

I have uploaded the slides that I've received so far.

Also I would welcome early volunteers for jabber and minutes takers.

Thank you.
--Bruno

-----Original Message-----
From: bruno.decraene@orange.com [mailto:bruno.decraene@orange.com]=20
Sent: Friday, March 15, 2019 6:16 PM
To: SPRING WG
Cc: spring-chairs@ietf.org
Subject: RE: IETF 104 - SPRING meeting

Hi SPRING WG,
=20
The agenda for the SPRING working group session at IETF 104 has been upload=
ed to=20
https://datatracker.ietf.org/meeting/104/materials/agenda-104-spring-00

We were oversubscribed for this session.
Whether your draft made it to the agenda or not, you are invited to introdu=
ce your draft/update to the mailing list.

Please send your slides to both chairs before Tuesday, March 26, 13:00 loca=
l time. Earlier is better. Sending PDF is usually better (than the automati=
c conversion).
A checklist is available on the wiki: https://trac.ietf.org/trac/spring/wik=
i/Checklist%20for%20presenting%20at%20a%20SPRING%20meeting

Thank you,

See you in Prague.
--Rob, Bruno

-----Original Message-----
From: spring [mailto:spring-bounces@ietf.org] On Behalf Of bruno.decraene@o=
range.com
Sent: Monday, March 4, 2019 5:55 PM
To: SPRING WG
Cc: spring-chairs@ietf.org
Subject: [spring] IETF 104 - SPRING meeting

Hi WG,

For IETF 104, the SPRING WG is currently scheduled to meet Thursday, March =
28, 13:50-15:50. We have a two hours session.
https://datatracker.ietf.org/meeting/104/agenda.html

It is time to start building the SPRING WG agenda.

Please send to chairs your request for a presentation slot, indicating draf=
t name, speaker, and desired duration (covering presentation and discussion=
), before Monday 2019-03-11 COB. Before is better.

If it is the first presentation of a non-WG draft, please first introduce y=
our draft on the mailing list.
Otherwise, please give a reason why it is required to have a new presentati=
on slot.

A checklist is available on the wiki: https://trac.ietf.org/trac/spring/wik=
i/Checklist%20for%20presenting%20at%20a%20SPRING%20meeting

Please send your slides before Tuesday, March 26, 13:00 local time. Earlier=
 is better.

Thank you,

--Bruno, Rob


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From: Rajesh M <mrajesh@juniper.net>
To: Peter Psenak <ppsenak@cisco.com>, "cfilsfil@cisco.com" <cfilsfil@cisco.com>, "abashandy.ietf@gmail.com" <abashandy.ietf@gmail.com>, "bruno.decraene@orange.com" <bruno.decraene@orange.com>, "huzhibo@huawei.com" <huzhibo@huawei.com>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/KU5dYcgLO5NKmDS81j0xO73MF3Y>
Subject: Re: [spring] draft-bashandy-isis-srv6-extensions-05.txt
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To: Rajesh M <mrajesh@juniper.net>, "cfilsfil@cisco.com" <cfilsfil@cisco.com>,  "abashandy.ietf@gmail.com" <abashandy.ietf@gmail.com>, "bruno.decraene@orange.com" <bruno.decraene@orange.com>, "huzhibo@huawei.com" <huzhibo@huawei.com>
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Cc: Ron Bonica <rbonica@juniper.net>, SPRING WG <spring@ietf.org>, "ipv6@ietf.org" <ipv6@ietf.org>
From: Peter Psenak <ppsenak@cisco.com>
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Subject: Re: [spring] draft-bashandy-isis-srv6-extensions-05.txt
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On 28/03/2019 11:09 , Rajesh M wrote:
> One more query guys 😊
>
> draft-bashandy-isis-srv6-extensions-05.txt says:
> Section 3. Advertising Supported Algorithms
> SRv6 capable router indicates supported algorithm(s) by advertising  the SR Algorithm sub TLV as defined in [I-D.ietf-isis-segment-routing-extensions].
>
> https://tools.ietf.org/pdf/draft-ietf-isis-segment-routing-extensions-22.pdf:
> "The SR-Algorithm sub-TLV is optional, it MAY only appear a single   time inside the Router Capability TLV"
>
>
> So we have only one SR-algorithm sub-TLV for SRV6 as well as for SR ?

yes.

> If we specify an algorithm in SR-Algorithm sub-TLV, it means that algorithm is supported for both SR as well as for SRV6 ?

yes, algo support is not data-plane specific.

> Selectively we cannot specify supported algorithm for SR,SRV6.

no.
If you need a data-plane specific algo, you can define an algo that 
would only include nodes from a specific data-plane.

thanks,
Peter
>
>
>
> Juniper Internal
>
> -----Original Message-----
> From: Peter Psenak <ppsenak@cisco.com>
> Sent: Sunday, March 24, 2019 2:43 PM
> To: Rajesh M <mrajesh@juniper.net>; cfilsfil@cisco.com; abashandy.ietf@gmail.com; bruno.decraene@orange.com; huzhibo@huawei.com
> Cc: Ron Bonica <rbonica@juniper.net>; SPRING WG <spring@ietf.org>; ipv6@ietf.org
> Subject: Re: draft-bashandy-isis-srv6-extensions-05.txt
>
> On 24/03/2019 05:50 , Rajesh M wrote:
>> Thanks peter for response.one query
>>
>> As per draft
>> "Each locator is a covering prefix for all SIDs provisioned on that node which have the matching topology/algorithm"
>>
>> So this means one locator per Topology/Algorithm ?
>
> Locator is scoped per algo and topology. You can have multiple Locators for the same algo/topo pair.
>
> thanks,
> Peter
>
>>
>>
>> My opinion is we should have multiple locator per topology/algorithm
>> (One Main locator and rest N Anycast locator based upon requirements. N can be zero,1,2...etc) Any cast flag should be set on Anycast locator. Main locator should be used as Node SID (I mean SIDS under Main locator).
>>
>> Thanks
>> Rajesh
>>
>>
>>
>>
>>
>>
>>
>> -----Original Message-----
>> From: Peter Psenak <ppsenak@cisco.com>
>> Sent: Wednesday, March 13, 2019 6:13 PM
>> To: Rajesh M <mrajesh@juniper.net>; cfilsfil@cisco.com;
>> abashandy.ietf@gmail.com; bruno.decraene@orange.com;
>> huzhibo@huawei.com
>> Cc: Ron Bonica <rbonica@juniper.net>; SPRING WG <spring@ietf.org>;
>> ipv6@ietf.org
>> Subject: Re: draft-bashandy-isis-srv6-extensions-05.txt
>>
>> Hi Rajesh,
>>
>>
>> On 13/03/2019 07:02 , Rajesh M wrote:
>>> 1)
>>>
>>> SRv6 Endpoint Function: 2 octets. As defined in
>>> [I-D.filsfils-spring-srv6-network-programming]
>>>
>>> Legal function values for this sub-TLV are defined in Section 7.
>>>
>>>
>>>
>>> This should be Section 8 I think, section 8 contains Advertising
>>> Endpoint Behaviors.
>>>
>>> Al reference to section 7 , we must change to section 8 (4 places)
>>>
>>
>> fair enough, will fix that in the next version.
>>
>>>
>>>
>>> 2)
>>>
>>>
>>>
>>> SRv6 Endpoint Function already mentions Endpoint Function Types.
>>>
>>>
>>>
>>> SIDusually will be a combination of Locator:Function:ARGS.
>>>
>>>
>>>
>>> Since SID already contains Function, why there is a need for
>>> additional
>>> SRv6 Endpoint Function field ? Am I missing something.
>>
>>
>> SRv6 Endpoint Function represents the behavior, which comes from
>> "SRv6 Endpoint Behaviors Registry". That value is not present in the 128 bits SID value, which is locally assigned by the advertising node.
>>
>> thanks,
>> Peter
>>
>>
>>
>>
>>
>>>
>>>
>>>
>>> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>>>
>>> | Flags | SRv6 Endpoint Function |
>>>
>>> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>>>
>>> | SID (128 bits) . . . |
>>>
>>> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>>>
>>> | SID (cont . . .) |
>>>
>>> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>>>
>>> | SID (cont . . .) |
>>>
>>> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>>>
>>> | SID (cont . . .) |
>>>
>>> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>>>
>>>
>>>
>>
>> .
>>


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--5c9cd3ad_47398c89_159ec
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the research paper mentioned at the mike

Cheers,
Jeff

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<div name=3D=22messageBodySection=22 style=3D=22font-size: 14px; font-fam=
ily: -apple-system, BlinkMacSystem=46ont, sans-serif;=22>the research pap=
er mentioned at the mike &=23160;</div>
<div name=3D=22messageSignatureSection=22><br />
<div class=3D=22match=46ont=22>Cheers,
<div style=3D=22font-size: 14px; font-family: -apple-system, BlinkMacSyst=
em=46ont, sans-serif;=22>Jeff</div>
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Subject: [spring] draft-gandhi-spring-twamp-srpm - comment
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Hi Rakesh,

It is a useful draft. Simplifies TWAMP usage in SR networks.=20

Given that the draft defines dedicated probes and response messages to meas=
ure PM/DM/LM, please consider not using the term Inband, as it would mean m=
ucking up the user packets like specified in IOAM.=20

Cheers,
Rajiv =20


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From: "Rajiv Asati (rajiva)" <rajiva@cisco.com>
To: "ipv6@ietf.org" <ipv6@ietf.org>
CC: "spring@ietf.org" <spring@ietf.org>
Thread-Topic: IPv6-compressed-routing-header-crh 
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Subject: [spring] IPv6-compressed-routing-header-crh
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Hi Ron,

Very Interesting idea that you presented during SPRING session today. Seems=
 useful.=20

Two comments/clarification -=20

1. One of the slides indicated that small packet size on the Internet was ~=
500B and calculated ~10% due to Routing EH overhead accordingly. Of course,=
 if we look at mid packet size (800-1000B) or large packet size (1000~1400B=
), then the overhead would be a lot less.=20

We should also look at the % mix of small packets vs mid vs large size to c=
alculate the impact. If mid to large packets were dominant (say, as much as=
 >70% given >80% of traffic is video (ABR etc) per the latest VNI studies )=
, then the overhead impact due to non-compressed SID usage on the traffic w=
ould be even less over all.=20

2. Also, what % of savings do we get by using compressed RH vs non-compress=
ed RH ? 24B vs 64B per packet !!=20


Cheers,
Rajiv =20


From nobody Thu Mar 28 08:44:37 2019
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Subject: Re: [spring] IPv6-compressed-routing-header-crh
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One needs to be very careful about packet size reasoning.
For TCP, something like 1/3 of all packets are tiny (acks).  A lot less 
than 1/3 of the bytes are in tiny packets :-)
For voice traffic, almost all packets are small.
Yours,
Joel

On 3/28/19 4:36 PM, Rajiv Asati (rajiva) wrote:
> Hi Ron,
> 
> Very Interesting idea that you presented during SPRING session today. Seems useful.
> 
> Two comments/clarification -
> 
> 1. One of the slides indicated that small packet size on the Internet was ~500B and calculated ~10% due to Routing EH overhead accordingly. Of course, if we look at mid packet size (800-1000B) or large packet size (1000~1400B), then the overhead would be a lot less.
> 
> We should also look at the % mix of small packets vs mid vs large size to calculate the impact. If mid to large packets were dominant (say, as much as >70% given >80% of traffic is video (ABR etc) per the latest VNI studies ), then the overhead impact due to non-compressed SID usage on the traffic would be even less over all.
> 
> 2. Also, what % of savings do we get by using compressed RH vs non-compressed RH ? 24B vs 64B per packet !!
> 
> 
> Cheers,
> Rajiv
> 
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
> 


From nobody Thu Mar 28 08:50:49 2019
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From: Robert Raszuk <rraszuk@gmail.com>
Date: Thu, 28 Mar 2019 16:51:19 +0100
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To: "Joel M. Halpern" <jmh@joelhalpern.com>
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Subject: Re: [spring] IPv6-compressed-routing-header-crh
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Hi Joel,

Is your hidden message to express that neither TCP nor UDP with voice app
should use IPv6 at all as overhead is just too big even without additional
extension headers ?

Best,
R.


On Thu, Mar 28, 2019, 16:44 Joel M. Halpern <jmh@joelhalpern.com> wrote:

> One needs to be very careful about packet size reasoning.
> For TCP, something like 1/3 of all packets are tiny (acks).  A lot less
> than 1/3 of the bytes are in tiny packets :-)
> For voice traffic, almost all packets are small.
> Yours,
> Joel
>
> On 3/28/19 4:36 PM, Rajiv Asati (rajiva) wrote:
> > Hi Ron,
> >
> > Very Interesting idea that you presented during SPRING session today.
> Seems useful.
> >
> > Two comments/clarification -
> >
> > 1. One of the slides indicated that small packet size on the Internet
> was ~500B and calculated ~10% due to Routing EH overhead accordingly. Of
> course, if we look at mid packet size (800-1000B) or large packet size
> (1000~1400B), then the overhead would be a lot less.
> >
> > We should also look at the % mix of small packets vs mid vs large size
> to calculate the impact. If mid to large packets were dominant (say, as
> much as >70% given >80% of traffic is video (ABR etc) per the latest VNI
> studies ), then the overhead impact due to non-compressed SID usage on the
> traffic would be even less over all.
> >
> > 2. Also, what % of savings do we get by using compressed RH vs
> non-compressed RH ? 24B vs 64B per packet !!
> >
> >
> > Cheers,
> > Rajiv
> >
> > _______________________________________________
> > spring mailing list
> > spring@ietf.org
> > https://www.ietf.org/mailman/listinfo/spring
> >
>
> --------------------------------------------------------------------
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<div dir=3D"auto"><div>Hi Joel,<div dir=3D"auto"><br></div><div dir=3D"auto=
">Is your hidden message to express that neither TCP nor UDP with voice app=
 should use IPv6 at all as overhead is just too big even without additional=
 extension headers ?</div><div dir=3D"auto"><br></div><div dir=3D"auto">Bes=
t,</div><div dir=3D"auto">R.</div><br><br><div class=3D"gmail_quote"><div d=
ir=3D"ltr" class=3D"gmail_attr">On Thu, Mar 28, 2019, 16:44 Joel M. Halpern=
 &lt;<a href=3D"mailto:jmh@joelhalpern.com">jmh@joelhalpern.com</a>&gt; wro=
te:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;b=
order-left:1px #ccc solid;padding-left:1ex">One needs to be very careful ab=
out packet size reasoning.<br>
For TCP, something like 1/3 of all packets are tiny (acks).=C2=A0 A lot les=
s <br>
than 1/3 of the bytes are in tiny packets :-)<br>
For voice traffic, almost all packets are small.<br>
Yours,<br>
Joel<br>
<br>
On 3/28/19 4:36 PM, Rajiv Asati (rajiva) wrote:<br>
&gt; Hi Ron,<br>
&gt; <br>
&gt; Very Interesting idea that you presented during SPRING session today. =
Seems useful.<br>
&gt; <br>
&gt; Two comments/clarification -<br>
&gt; <br>
&gt; 1. One of the slides indicated that small packet size on the Internet =
was ~500B and calculated ~10% due to Routing EH overhead accordingly. Of co=
urse, if we look at mid packet size (800-1000B) or large packet size (1000~=
1400B), then the overhead would be a lot less.<br>
&gt; <br>
&gt; We should also look at the % mix of small packets vs mid vs large size=
 to calculate the impact. If mid to large packets were dominant (say, as mu=
ch as &gt;70% given &gt;80% of traffic is video (ABR etc) per the latest VN=
I studies ), then the overhead impact due to non-compressed SID usage on th=
e traffic would be even less over all.<br>
&gt; <br>
&gt; 2. Also, what % of savings do we get by using compressed RH vs non-com=
pressed RH ? 24B vs 64B per packet !!<br>
&gt; <br>
&gt; <br>
&gt; Cheers,<br>
&gt; Rajiv<br>
&gt; <br>
&gt; _______________________________________________<br>
&gt; spring mailing list<br>
&gt; <a href=3D"mailto:spring@ietf.org" target=3D"_blank" rel=3D"noreferrer=
">spring@ietf.org</a><br>
&gt; <a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"norefe=
rrer noreferrer" target=3D"_blank">https://www.ietf.org/mailman/listinfo/sp=
ring</a><br>
&gt; <br>
<br>
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Date: Thu, 28 Mar 2019 12:18:29 -0400 (EDT)
From: "john leddy.net" <john@leddy.net>
Reply-To: "john leddy.net" <john@leddy.net>
To: Robert Raszuk <rraszuk@gmail.com>, "Joel M. Halpern" <jmh@joelhalpern.com>
Cc: spring@ietf.org, 6man WG <ipv6@ietf.org>, "Rajiv Asati (rajiva)" <rajiva@cisco.com>
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Subject: Re: [spring] IPv6-compressed-routing-header-crh
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Joel,

It would be good to factor in the ever growing amount of video on the Internet (and other large data transfer applications vs voice traffic).

If larger MTU's could reliably be used, I think you would see a large amount of traffic starting to use something larger than 1500 byte Cells.

Getting to a reliable PMTU mechanism would be a great way to drive efficiency.
Use of larger packets should generate less TCP Ack traffic as well in general.

I'm assuming the voice concern was around efficiency not about whether a voice application would work with the increased overhead of an extension header?

John





> On March 28, 2019 at 11:51 AM Robert Raszuk <rraszuk@gmail.com> wrote:
> 
>     Hi Joel,
> 
>     Is your hidden message to express that neither TCP nor UDP with voice app should use IPv6 at all as overhead is just too big even without additional extension headers ?
> 
>     Best,
>     R.
> 
> 
>     On Thu, Mar 28, 2019, 16:44 Joel M. Halpern < jmh@joelhalpern.com mailto:jmh@joelhalpern.com > wrote:
> 
>         > > One needs to be very careful about packet size reasoning.
> >         For TCP, something like 1/3 of all packets are tiny (acks).  A lot less
> >         than 1/3 of the bytes are in tiny packets :-)
> >         For voice traffic, almost all packets are small.
> >         Yours,
> >         Joel
> > 
> >         On 3/28/19 4:36 PM, Rajiv Asati (rajiva) wrote:
> >         > Hi Ron,
> >         >
> >         > Very Interesting idea that you presented during SPRING session today. Seems useful.
> >         >
> >         > Two comments/clarification -
> >         >
> >         > 1. One of the slides indicated that small packet size on the Internet was ~500B and calculated ~10% due to Routing EH overhead accordingly. Of course, if we look at mid packet size (800-1000B) or large packet size (1000~1400B), then the overhead would be a lot less.
> >         >
> >         > We should also look at the % mix of small packets vs mid vs large size to calculate the impact. If mid to large packets were dominant (say, as much as >70% given >80% of traffic is video (ABR etc) per the latest VNI studies ), then the overhead impact due to non-compressed SID usage on the traffic would be even less over all.
> >         >
> >         > 2. Also, what % of savings do we get by using compressed RH vs non-compressed RH ? 24B vs 64B per packet !!
> >         >
> >         >
> >         > Cheers,
> >         > Rajiv
> >         >
> >         > _______________________________________________
> >         > spring mailing list
> >         > spring@ietf.org mailto:spring@ietf.org
> >         > https://www.ietf.org/mailman/listinfo/spring
> >         >
> > 
> >         --------------------------------------------------------------------
> >         IETF IPv6 working group mailing list
> >         ipv6@ietf.org mailto:ipv6@ietf.org
> >         Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
> >         --------------------------------------------------------------------
> > 
> >     >     _______________________________________________
>     spring mailing list
>     spring@ietf.org
>     https://www.ietf.org/mailman/listinfo/spring
> 



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<!doctype html>
<html>
 <head> 
  <meta charset="UTF-8"> 
 </head>
 <body>
  <div>
   Joel,
  </div>
  <div>
   <br>
  </div>
  <div>
   It would be good to factor in the ever growing amount of video on the Internet (and other large data transfer applications vs voice traffic).
  </div>
  <div>
   <br>
  </div>
  <div>
   If larger MTU's could reliably be used, I think you would see a large amount of traffic starting to use something larger than 1500 byte Cells.
  </div>
  <div>
   <br>
  </div>
  <div>
   Getting to a reliable PMTU mechanism would be a great way to drive efficiency.
  </div>
  <div>
   Use of larger packets should generate less TCP Ack traffic as well in general.
  </div>
  <div>
   <br>
  </div>
  <div>
   I'm assuming the voice concern was around efficiency not about whether a voice application would work with the increased overhead of an extension header?
  </div>
  <div>
   <br>
  </div>
  <div>
   John
  </div>
  <div>
   <br>
  </div>
  <div>
   <br>
  </div>
  <div>
   <br>
  </div>
  <div>
   <br>
  </div>
  <blockquote type="cite">
   On March 28, 2019 at 11:51 AM Robert Raszuk &lt;rraszuk@gmail.com&gt; wrote: 
   <br> 
   <br>
   <div dir="auto">
    <div>
     Hi Joel,
     <div dir="auto">
      <br>
     </div>
     <div dir="auto">
      Is your hidden message to express that neither TCP nor UDP with voice app should use IPv6 at all as overhead is just too big even without additional extension headers ?
     </div>
     <div dir="auto">
      <br>
     </div>
     <div dir="auto">
      Best,
     </div>
     <div dir="auto">
      R.
     </div>
     <br> 
     <br>
     <div class="ox-2e2d1d16a3-gmail_quote">
      <div dir="ltr" class="ox-2e2d1d16a3-gmail_attr">
       On Thu, Mar 28, 2019, 16:44 Joel M. Halpern &lt; 
       <a href="mailto:jmh@joelhalpern.com">jmh@joelhalpern.com</a>&gt; wrote: 
       <br>
      </div>
      <blockquote>
       One needs to be very careful about packet size reasoning. 
       <br> For TCP, something like 1/3 of all packets are tiny (acks).&nbsp; A lot less 
       <br> than 1/3 of the bytes are in tiny packets :-) 
       <br> For voice traffic, almost all packets are small. 
       <br> Yours, 
       <br> Joel 
       <br> 
       <br> On 3/28/19 4:36 PM, Rajiv Asati (rajiva) wrote: 
       <br> &gt; Hi Ron, 
       <br> &gt; 
       <br> &gt; Very Interesting idea that you presented during SPRING session today. Seems useful. 
       <br> &gt; 
       <br> &gt; Two comments/clarification - 
       <br> &gt; 
       <br> &gt; 1. One of the slides indicated that small packet size on the Internet was ~500B and calculated ~10% due to Routing EH overhead accordingly. Of course, if we look at mid packet size (800-1000B) or large packet size (1000~1400B), then the overhead would be a lot less. 
       <br> &gt; 
       <br> &gt; We should also look at the % mix of small packets vs mid vs large size to calculate the impact. If mid to large packets were dominant (say, as much as &gt;70% given &gt;80% of traffic is video (ABR etc) per the latest VNI studies ), then the overhead impact due to non-compressed SID usage on the traffic would be even less over all. 
       <br> &gt; 
       <br> &gt; 2. Also, what % of savings do we get by using compressed RH vs non-compressed RH ? 24B vs 64B per packet !! 
       <br> &gt; 
       <br> &gt; 
       <br> &gt; Cheers, 
       <br> &gt; Rajiv 
       <br> &gt; 
       <br> &gt; _______________________________________________ 
       <br> &gt; spring mailing list 
       <br> &gt; 
       <a href="mailto:spring@ietf.org" target="_blank" rel="noopener">spring@ietf.org</a> 
       <br> &gt; 
       <a href="https://www.ietf.org/mailman/listinfo/spring" target="_blank" rel="noopener">https://www.ietf.org/mailman/listinfo/spring</a> 
       <br> &gt; 
       <br> 
       <br> -------------------------------------------------------------------- 
       <br> IETF IPv6 working group mailing list 
       <br> 
       <a href="mailto:ipv6@ietf.org" target="_blank" rel="noopener">ipv6@ietf.org</a> 
       <br> Administrative Requests: 
       <a href="https://www.ietf.org/mailman/listinfo/ipv6" target="_blank" rel="noopener">https://www.ietf.org/mailman/listinfo/ipv6</a> 
       <br> -------------------------------------------------------------------- 
       <br>
      </blockquote>
     </div>
    </div>
   </div>_______________________________________________ 
   <br>spring mailing list 
   <br>spring@ietf.org 
   <br>https://www.ietf.org/mailman/listinfo/spring 
   <br>
  </blockquote>
  <div class="default-style">
   <br>&nbsp;
  </div> 
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</html>
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CC: Robert Raszuk <rraszuk@gmail.com>, "Joel M. Halpern" <jmh@joelhalpern.com>, "spring@ietf.org" <spring@ietf.org>, 6man WG <ipv6@ietf.org>
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From nobody Thu Mar 28 13:51:58 2019
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To: "john leddy.net" <john@leddy.net>, Robert Raszuk <rraszuk@gmail.com>
Cc: spring@ietf.org, 6man WG <ipv6@ietf.org>, "Rajiv Asati (rajiva)" <rajiva@cisco.com>
References: <A881B89B-5E72-40CD-81F3-50396958A554@cisco.com> <64ec587e-b81e-0271-4868-e8ad623b8ada@joelhalpern.com> <CA+b+ERnFUf8YjH5MZ+rd7h34Xi69ofKnFP9VA1YZWMyaH8B_Eg@mail.gmail.com> <879399074.213895.1553789909464@webmail.networksolutionsemail.com>
From: Joel Halpern Direct <jmh.direct@joelhalpern.com>
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Date: Thu, 28 Mar 2019 21:51:38 +0100
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Subject: Re: [spring] IPv6-compressed-routing-header-crh
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I would like to see working path MTU of some form for many different 
reasons.
I would also like to see larger practical MTUs.
However, history suggests that both goals may be more aspirational than 
practical.

I tend to be very skeptical of any anlysis that says that user traffic 
is changing to X, and that because X has property Y, we should plan our 
networks for property Y.  I am not at all sure I have ever seen this 
proven correct.

All I was saying is that thinking about overhead in terms of a single 
average packet size is mathematically correct but practically misleading.

Yours,
Joel

On 3/28/19 5:18 PM, john leddy.net wrote:
> Joel,
> 
> It would be good to factor in the ever growing amount of video on the 
> Internet (and other large data transfer applications vs voice traffic).
> 
> If larger MTU's could reliably be used, I think you would see a large 
> amount of traffic starting to use something larger than 1500 byte Cells.
> 
> Getting to a reliable PMTU mechanism would be a great way to drive 
> efficiency.
> Use of larger packets should generate less TCP Ack traffic as well in 
> general.
> 
> I'm assuming the voice concern was around efficiency not about whether a 
> voice application would work with the increased overhead of an extension 
> header?
> 
> John
> 
> 
> 
> 
>> On March 28, 2019 at 11:51 AM Robert Raszuk <rraszuk@gmail.com> wrote:
>>
>> Hi Joel,
>>
>> Is your hidden message to express that neither TCP nor UDP with voice 
>> app should use IPv6 at all as overhead is just too big even without 
>> additional extension headers ?
>>
>> Best,
>> R.
>>
>>
>> On Thu, Mar 28, 2019, 16:44 Joel M. Halpern < jmh@joelhalpern.com 
>> <mailto:jmh@joelhalpern.com>> wrote:
>>
>>     One needs to be very careful about packet size reasoning.
>>     For TCP, something like 1/3 of all packets are tiny (acks).  A lot
>>     less
>>     than 1/3 of the bytes are in tiny packets :-)
>>     For voice traffic, almost all packets are small.
>>     Yours,
>>     Joel
>>
>>     On 3/28/19 4:36 PM, Rajiv Asati (rajiva) wrote:
>>     > Hi Ron,
>>     >
>>     > Very Interesting idea that you presented during SPRING session
>>     today. Seems useful.
>>     >
>>     > Two comments/clarification -
>>     >
>>     > 1. One of the slides indicated that small packet size on the
>>     Internet was ~500B and calculated ~10% due to Routing EH overhead
>>     accordingly. Of course, if we look at mid packet size (800-1000B)
>>     or large packet size (1000~1400B), then the overhead would be a
>>     lot less.
>>     >
>>     > We should also look at the % mix of small packets vs mid vs
>>     large size to calculate the impact. If mid to large packets were
>>     dominant (say, as much as >70% given >80% of traffic is video (ABR
>>     etc) per the latest VNI studies ), then the overhead impact due to
>>     non-compressed SID usage on the traffic would be even less over all.
>>     >
>>     > 2. Also, what % of savings do we get by using compressed RH vs
>>     non-compressed RH ? 24B vs 64B per packet !!
>>     >
>>     >
>>     > Cheers,
>>     > Rajiv
>>     >
>>     > _______________________________________________
>>     > spring mailing list
>>     > spring@ietf.org <mailto:spring@ietf.org>
>>     > https://www.ietf.org/mailman/listinfo/spring
>>     >
>>
>>     --------------------------------------------------------------------
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> 


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Subject: [spring] I-D Action: draft-ietf-spring-segment-routing-mpls-19.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           : Segment Routing with MPLS data plane
        Authors         : Ahmed Bashandy
                          Clarence Filsfils
                          Stefano Previdi
                          Bruno Decraene
                          Stephane Litkowski
                          Rob Shakir
	Filename        : draft-ietf-spring-segment-routing-mpls-19.txt
	Pages           : 38
	Date            : 2019-03-28

Abstract:
   Segment Routing (SR) leverages the source routing paradigm.  A node
   steers a packet through a controlled set of instructions, called
   segments, by prepending the packet with an SR header.  In the MPLS
   dataplane, the SR header is instantiated through a label stack. This
   document specifies the forwarding behavior to allow instantiating SR
   over the MPLS dataplane.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-spring-segment-routing-mpls/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-spring-segment-routing-mpls-19
https://datatracker.ietf.org/doc/html/draft-ietf-spring-segment-routing-mpls-19

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-spring-segment-routing-mpls-19


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/


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To: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>, "rtg-ads@ietf.org" <rtg-ads@ietf.org>
Cc: "rtg-dir@ietf.org" <rtg-dir@ietf.org>, "spring@ietf.org" <spring@ietf.org>, "mpls@ietf.org" <mpls@ietf.org>, "draft-ietf-spring-segment-routing-mpls.authors@ietf.org" <draft-ietf-spring-segment-routing-mpls.authors@ietf.org>, Min Ye <amy.yemin@huawei.com>
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From: Ahmed Bashandy <abashandy.ietf@gmail.com>
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Subject: Re: [spring] RTG-DIR Last Call review of draft-ietf-spring-segment-routing-mpls-18
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Thanks a lot for the review

I uploaded version 19 of the draft, which, IMO, addresses all your comments

See the reply "#Ahmed"

On 3/10/19 9:55 AM, Alexander Vainshtein wrote:
>
> Hello,
>
> I have been selected as the Routing Directorate reviewer for this 
> draft. The Routing Directorate seeks to review all routing or 
> routing-related drafts as they pass through IETF last call and IESG 
> review, and sometimes on special request. The purpose of the review is 
> to provide assistance to the Routing ADs. For more information about 
> the Routing Directorate, please see 
> ​http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir
>
> Although these comments are primarily for the use of the Routing ADs, 
> it would be helpful if you could consider them along with any other 
> IETF Last Call comments that you receive, and strive to resolve them 
> through discussion or by updating the draft.
>
> Document: review of draft-ietf-spring-segment-routing-mpls-18
> Reviewer: Alexander (“Sasha”) Vainshtein
> Review Date: 10-Mar-19
> IETF LC End Date: 07-Mar-2019
> Intended Status: Proposed Standard
>
> *Summary:*I have some minor concerns about this document that I think 
> should be resolved before publication.
>
> *Comments*:
>
> I have done an early RTG-DIR review of the -14 version of the draft 
> half a year ago, and the issues I’ve raised then have been resolved in 
> the subsequent versions one way or another). Therefore this review has 
> been intentionally focused on the changes done to the draft in the few 
> recent versions.
>
> In my previous review I have noticed that the draft was not easy 
> reading for me. Since then readability of the draft has been improved. 
> However, there are still several places in the new text that are still 
> difficult to parse.
>
> I did not run the nits checker on the draft, so my list of nits is 
> probably incomplete.
>
> Just as with my earlier review, I send this one also to the MPLS WG 
> list – and for the same reasons.
>
> I tried to discuss my review privately with the authors, but they did 
> not respond.
>
> *Major Issues*: No major issues found.
>
> *Minor Issues*:
>
> 1.The text in Section 1 states that  “*a network operator SHOULD configure at least one node segment per 
> routing instance, topology, algorithm*”and continues that  “*An implementation MAY check that an IGP node-SID is not associated 
> with a prefix that is owned by more than one router within the same 
> routing domain, If so, it SHOULD NOT use this Node-SID, MAY use 
> another one if available, and SHOULD log an error*”. This looks somewhat controversial to me because:
> a.The check of the Node SID not being owned by more than one router in 
> the routing domain is defined as purely optional. According to RFC 
> 2119, implementations that choose to implement such a check must be 
> able to interoperate with implementations that do not implement it
> b.The recommended handling of the results of this check (fully aligned 
> with the text in Section 3.2 pf RFC 8402 that prohibits using prefixes 
> owned by more than one router in the domain as Node-SODs) strongly 
> suggests that the prefix that is owned by more than one router in the 
> domain is unusable as the Node SID
> I see two possibilities to resolve this controversy: either make the 
> check in question a “real requirement” (i.e., replace *MAY*with *SHOULD*or even *MUST*), or explain why it is safe enough not to implement such a check 
> (i.e., how implementations that support this check and implementations 
> that do not support it can interoperate within a given routing domain).The first of these options seems to me aligned with Section 3.2 in RFC 
> 8402 that says that “*An IGP Node-SID MUST NOT be associated with a 
> prefix that is owned by more than one router within the same routing 
> domain*”.     
#Ahmed: I replaced the MAY with SHOULD
>
> 2.I have  a problem with the highlighted part of the following text in 
> Section 2.5:
>
> *An implementation MUST NOT allow the MCCs belonging to the same*
>
> *   router to assign the same incoming label to more than one SR FEC. An*
>
> *implementation that allows such behavior is considered as faulty.***
>
> *Procedures defined in this document equally applies to this case,*
>
> *   both for incoming label collision (Section 2.5 
> <https://tools.ietf.org/html/draft-ietf-spring-segment-routing-mpls-18#section-2.5>) 
> and the effect on*
>
> *outgoing label programming (Section 2.6 
> <https://tools.ietf.org/html/draft-ietf-spring-segment-routing-mpls-18#section-2.6>).***
>
> a.The Section in question deals with incoming label collision (in 
> fact, the text that immediately follows the problematic fragment 
> states that “*The objective of the following steps is to 
> deterministically install in the MPLS Incoming Label Map, also known 
> as label FIB, a single FEC with the incoming label "L1"*”
> b.As a consequence, any mention of *outgoing label programming*, looks out of context (even accompanied by a forward reference to 
> Section 2.6)
> c.Section 2.6 covers the impact of incoming label collision on 
> programming of outgoing labels in quite a generic way. Therefore I 
> think that the highlighted part of the quoted fragment can be safely 
> removed (complete with the grammar mistake).
> d.I also do not see any value in stating that an implementations that 
> violates a mandatory requirement of the spec is faulty – isn’t that 
> self-evident?

#Ahmed: I removed the highlighted text because I agree with what you 
said in item (d) that it has no value


> 3.The highlighted text in Section 2.8 is not accurate:
> *   For Local SIDs, the MCC is responsible for downloading the correct*
> *   label value to FIB. For example, an IGP with SR extensions [I-D.ietf-*
> *   isis-segment-routing-extensions, I-D.ietf-ospf-segment-routing-*
> *   extensions] allocates and downloads the MPLS label corresponding to*
> *   an Adj-SID [RFC8402 <https://tools.ietf.org/html/rfc8402>].*
> *a.*IGP with SR extensions**may indeed dynamically allocate and download MPLS labels acting as 
> local Adj-SIDs **
> *b.*However, these labels can be allocated by configuration (e.g. as 
> mentioned in the tie-breaking rules in Section 2.5.1 and in the 
> example in Section A.2.3 in the draft), in which case IGP with SR 
> extensions would only responsible for its advertisement and 
> installation. **
#Ahmed: I removed the highlighted word "allocated"
> *NITS*:
> :**
> 1.In section 2.5:
> a.In the sentence “*Procedures defined in this document equally 
> applies to this case*” the noun is in plural but the verb is in singular. (If this sentence 
> is removed as suggested above, this nit disappears)
> b.The same problem exists in the sentence “*An incoming label 
> collision occurs if the SIDs of the set of FECs {FEC1, FEC2,..., FECk} 
> maps to the same incoming SR MPLS label "L1"*”
#Ahmed: The sentence is removed as you suggested
>
> 2.In section 2.10.1 the preposition “*to*” between the words 
> “*according*” and “*MPLS*” is missing in the fragment “*Push the 
> calculated label according the MPLS label pushing rules specified in 
> [RFC3032]*”.
>
#Ahmed added the missing "to"
>
> 3.Problems with references:
>
> a.As reported by Sergey 
> <https://mailarchive.ietf.org/arch/msg/spring/C_W3KBcL2AWxmlB7Sp53_PvqbQA>, 
> there are two occurrences of references to RFC 8042 “OSPF Two-Part 
> Metric” instead of RFC 8402. Lots of thanks to Sergey for catching this
>
#Ahmed: Corrected, thanks again
>
> b.Reference to RFC 8174 mistakenly contains a link to  RFC 7274.
>
#Ahmed: Corrected
>
> Hopefully these notes will be useful.
>
#Ahmed: VERY useful
>
> Regards,
>
> Sasha
>
> Office: +972-39266302
>
> Cell:      +972-549266302
>
> Email:   Alexander.Vainshtein@ecitele.com
>
>
> ___________________________________________________________________________
>
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> ___________________________________________________________________________

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From: David Lebrun <dlebrun@google.com>
Date: Fri, 29 Mar 2019 09:18:14 +0100
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To: bruno.decraene@orange.com
Cc: SPRING WG <spring@ietf.org>,  "draft-filsfils-spring-srv6-network-programming@ietf.org" <draft-filsfils-spring-srv6-network-programming@ietf.org>
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Subject: Re: [spring] IPR Poll for draft-filsfils-spring-srv6-network-programming
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As a contributor, I am not aware of any IPR.

Thanks

On Wed, Mar 13, 2019 at 7:50 PM <bruno.decraene@orange.com> wrote:

> Hi authors, SPRING WG,
>
>
>
> In parallel to the call for adoption for draft-filsfils-spring-srv6-network-programming (1), we would like to poll for IPR.
>
>
>
> If you are aware of IPR that applies to draft-filsfils-spring-srv6-network-programming 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.
>
> If you are not an author or contributor, please explicitly respond only if you are aware of IPR that has not yet been disclosed.
>
>
>
> This document will not advance into the working group until IPR confirmations have been received from all authors and contributors.
>
>
>
> Thank you,
>
>
>
> (1)  https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-07
>
>
>
>
>
> --Bruno & Rob.
>
>
>
> _________________________________________________________________________________________________________________________
>
> 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,
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<div dir=3D"ltr">As a contributor, I am not aware of any IPR.<div><br></div=
><div>Thanks</div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" cla=
ss=3D"gmail_attr">On Wed, Mar 13, 2019 at 7:50 PM &lt;<a href=3D"mailto:bru=
no.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;border-l=
eft:1px solid rgb(204,204,204);padding-left:1ex">







<div lang=3D"FR">
<div class=3D"gmail-m_-5733805285666855322WordSection1">
<pre><span lang=3D"EN-US">Hi authors, 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">In parallel to the call for adoption for draft-fi=
lsfils-spring-srv6-network-programming (1), we would like to poll for IPR.<=
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 aware of IPR that applies to draft-fil=
sfils-spring-srv6-network-programming please respond to this email.<u></u><=
u></u></span></pre>
<pre><span lang=3D"EN-US">If you are aware of IPR, please indicate whether =
it has been disclosed in accordance with IETF IPR rules (RFCs 3979, 4879, 3=
669 and 5378 provide more details).<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 an *author or contributor* please resp=
ond to this email regardless of whether or not you&#39;re aware of any IPR.=
<u></u><u></u></span></pre>
<pre><span lang=3D"EN-US">If you are not an author or contributor, please e=
xplicitly respond only if you are aware of IPR that has not yet been disclo=
sed.<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 document will not advance into the working g=
roup until IPR confirmations have been received from all authors and contri=
butors.<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"><u></u>=C2=A0<u></u></span></pre>
<pre style=3D"margin-left:24pt"><u></u><span lang=3D"EN-US"><span>(1)<span =
style=3D"font:7pt &quot;Times New Roman&quot;">=C2=A0 </span></span></span>=
<u></u><span lang=3D"EN-US"><a href=3D"https://tools.ietf.org/html/draft-fi=
lsfils-spring-srv6-network-programming-07" target=3D"_blank">https://tools.=
ietf.org/html/draft-filsfils-spring-srv6-network-programming-07</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"><u></u>=C2=A0<u></u></span></pre>
<pre>--Bruno &amp; Rob.<u></u><u></u></pre>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<pre>______________________________________________________________________=
___________________________________________________

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tielles ou privilegiees et ne doivent donc
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 ce message par erreur, veuillez le signaler
a l&#39;expediteur et le detruire ainsi que les pieces jointes. Les message=
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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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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>

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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/3-SFRzjDziGrTpSr3TKLcjaRVEs>
Subject: Re: [spring] IPv6-compressed-routing-header-crh
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Hi Rajiv,

Thanks for these kind words.=20

Generally speaking, we should design for efficiency.  Furthermore, we shoul=
d engineer for future requirements. For example, in the future, service pro=
viders may require longer SID lists (5 or more!). We should plan for that t=
oday.

Likewise, in the future, people may deploy new applications that emit short=
 packets. We should also plan for that today.

If we don't plan for future requirements, obsolescence will be much closer =
than we expect.

                                                    Ron


Juniper Internal

> -----Original Message-----
> From: spring <spring-bounces@ietf.org> On Behalf Of Rajiv Asati (rajiva)
> Sent: Thursday, March 28, 2019 11:37 AM
> To: ipv6@ietf.org
> Cc: spring@ietf.org
> Subject: [spring] IPv6-compressed-routing-header-crh
>=20
> Hi Ron,
>=20
> Very Interesting idea that you presented during SPRING session today. See=
ms
> useful.
>=20
> Two comments/clarification -
>=20
> 1. One of the slides indicated that small packet size on the Internet was=
 ~500B
> and calculated ~10% due to Routing EH overhead accordingly. Of course, if=
 we
> look at mid packet size (800-1000B) or large packet size (1000~1400B), th=
en
> the overhead would be a lot less.
>=20
> We should also look at the % mix of small packets vs mid vs large size to
> calculate the impact. If mid to large packets were dominant (say, as much=
 as
> >70% given >80% of traffic is video (ABR etc) per the latest VNI studies =
), then
> the overhead impact due to non-compressed SID usage on the traffic would
> be even less over all.
>=20
> 2. Also, what % of savings do we get by using compressed RH vs non-
> compressed RH ? 24B vs 64B per packet !!
>=20
>=20
> Cheers,
> Rajiv
>=20
> _______________________________________________
> spring mailing list
> spring@ietf.org
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From: Przemyslaw Krol <pkrol@google.com>
Date: Sat, 30 Mar 2019 05:13:05 +0100
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To: Ahmed Bashandy <abashandy.ietf@gmail.com>
Cc: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>, "rtg-ads@ietf.org" <rtg-ads@ietf.org>,  "rtg-dir@ietf.org" <rtg-dir@ietf.org>, "spring@ietf.org" <spring@ietf.org>,  "draft-ietf-spring-segment-routing-mpls.authors@ietf.org" <draft-ietf-spring-segment-routing-mpls.authors@ietf.org>,  Min Ye <amy.yemin@huawei.com>, "mpls@ietf.org" <mpls@ietf.org>
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Subject: Re: [spring] RTG-DIR Last Call review of draft-ietf-spring-segment-routing-mpls-18
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Hi Ahmed,

Cosmetic minor nit:
2.5. Incoming Label Collision
[...]
both links in the '(Mirrored SID)' section need a cleanup / update

thanks,
pk


On Fri, Mar 29, 2019 at 2:14 AM Ahmed Bashandy <abashandy.ietf@gmail.com>
wrote:

> Thanks a lot for the review
>
> I uploaded version 19 of the draft, which, IMO, addresses all your commen=
ts
>
> See the reply "#Ahmed"
> On 3/10/19 9:55 AM, Alexander Vainshtein wrote:
>
> Hello,
>
> I have been selected as the Routing Directorate reviewer for this draft.
> The Routing Directorate seeks to review all routing or routing-related
> drafts as they pass through IETF last call and IESG review, and sometimes
> on special request. The purpose of the review is to provide assistance to
> the Routing ADs. For more information about the Routing Directorate, plea=
se
> see =E2=80=8Bhttp://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir
>
> Although these comments are primarily for the use of the Routing ADs, it
> would be helpful if you could consider them along with any other IETF Las=
t
> Call comments that you receive, and strive to resolve them through
> discussion or by updating the draft.
>
> Document: review of draft-ietf-spring-segment-routing-mpls-18
> Reviewer: Alexander (=E2=80=9CSasha=E2=80=9D) Vainshtein
> Review Date: 10-Mar-19
> IETF LC End Date: 07-Mar-2019
> Intended Status: Proposed Standard
>
> *Summary:* I have some minor concerns about this document that I think
> should be resolved before publication.
>
> *Comments*:
>
> I have done an early RTG-DIR review of the -14 version of the draft half =
a
> year ago, and the issues I=E2=80=99ve raised then have been resolved in t=
he
> subsequent versions one way or another). Therefore this review has been
> intentionally focused on the changes done to the draft in the few recent
> versions.
>
> In my previous review I have noticed that the draft was not easy reading
> for me. Since then readability of the draft has been improved. However,
> there are still several places in the new text that are still difficult t=
o
> parse.
>
> I did not run the nits checker on the draft, so my list of nits is
> probably incomplete.
>
> Just as with my earlier review, I send this one also to the MPLS WG list =
=E2=80=93
> and for the same reasons.
>
> I tried to discuss my review privately with the authors, but they did not
> respond.
>
> *Major Issues*: No major issues found.
>
> *Minor Issues*:
>
> 1.    The text in Section 1 states that =E2=80=9C*a network operator SHOU=
LD configure at least one node segment per routing instance, topology, algo=
rithm*=E2=80=9D and continues that =E2=80=9C*An implementation MAY check th=
at an IGP node-SID is not associated with a prefix that is owned by more th=
an one router within the same routing domain, If so, it SHOULD NOT use this=
 Node-SID, MAY use another one if available, and SHOULD log an error*=E2=80=
=9D. This looks somewhat controversial to me because:
>
> a.    The check of the Node SID not being owned by more than one router i=
n the routing domain is defined as purely optional. According to RFC 2119, =
implementations that choose to implement such a check must be able to inter=
operate with implementations that do not implement it
>
> b.    The recommended handling of the results of this check (fully aligne=
d with the text in Section 3.2 pf RFC 8402 that prohibits using prefixes ow=
ned by more than one router in the domain as Node-SODs) strongly suggests t=
hat the prefix that is owned by more than one router in the domain is unusa=
ble as the Node SID
>
> I see two possibilities to resolve this controversy: either make the chec=
k in question a =E2=80=9Creal requirement=E2=80=9D (i.e., replace *MAY* wit=
h *SHOULD* or even *MUST*), or explain why it is safe enough not to impleme=
nt such a check (i.e., how implementations that support this check and impl=
ementations that do not support it can interoperate within a given routing =
domain). The first of these options seems to me aligned with Section 3.2 in=
 RFC 8402 that says that =E2=80=9C*An IGP Node-SID MUST NOT be associated w=
ith a prefix that is owned by more than one router within the same routing =
domain*=E2=80=9D.
>
> #Ahmed: I replaced the MAY with SHOULD
>
> 2.       I have  a problem with the highlighted part of the following
> text in Section 2.5:
>
>    *An implementation MUST NOT allow the MCCs belonging to the same*
>
> *   router to assign the same incoming label to more than one SR FEC. An*
>
> *   implementation that allows such behavior is considered as faulty.*
>
> *   Procedures defined in this document equally applies to this case,*
>
> *   both for incoming label collision (Section 2.5
> <https://tools.ietf.org/html/draft-ietf-spring-segment-routing-mpls-18#se=
ction-2.5>)
> and the effect on*
>
> *   outgoing label programming (Section 2.6
> <https://tools.ietf.org/html/draft-ietf-spring-segment-routing-mpls-18#se=
ction-2.6>).*
>
> a.    The Section in question deals with incoming label collision (in fac=
t, the text that immediately follows the problematic fragment states that =
=E2=80=9C*The objective of the following steps is to deterministically inst=
all in the MPLS Incoming Label Map, also known as label FIB, a single FEC w=
ith the incoming label "L1"*=E2=80=9D
>
> b.    As a consequence, any mention of  *outgoing label programming*, loo=
ks out of context (even accompanied by a forward reference to Section 2.6)
>
> c.    Section 2.6 covers the impact of incoming label collision on progra=
mming of outgoing labels in quite a generic way. Therefore I think that the=
  highlighted part of the quoted fragment can be safely removed (complete w=
ith the grammar mistake).
>
> d.    I also do not see any value in stating that an implementations that=
 violates a mandatory requirement of the spec is faulty =E2=80=93 isn=E2=80=
=99t that self-evident?
>
> #Ahmed: I removed the highlighted text because I agree with what you said
> in item (d) that it has no value
>
>
> 3.    The highlighted text in Section 2.8 is not accurate:
>
> *   For Local SIDs, the MCC is responsible for downloading the correct*
>
> *   label value to FIB. For example, an IGP with SR extensions [I-D.ietf-=
*
>
> *   isis-segment-routing-extensions, I-D.ietf-ospf-segment-routing-*
>
> *   extensions] allocates and downloads the MPLS label corresponding to*
>
> *   an Adj-SID [RFC8402 <https://tools.ietf.org/html/rfc8402>].*
>
> *a.  *IGP with SR extensions may indeed dynamically allocate and download=
 MPLS labels acting as local Adj-SIDs
>
> *b.  *However, these labels can be allocated by configuration (e.g. as me=
ntioned in the tie-breaking rules in Section 2.5.1 and in the example in Se=
ction A.2.3 in the draft), in which case IGP with SR extensions would only =
responsible for its advertisement and installation.
>
> #Ahmed: I removed the highlighted word "allocated"
>
>
>
> *NITS*:
>
>  :
>
> 1.    In section 2.5:
>
> a.    In the sentence =E2=80=9C*Procedures defined in this document equal=
ly applies to this case*=E2=80=9D the noun is in plural but the verb is in =
singular. (If this sentence is removed as suggested above, this nit disappe=
ars)
>
> b.    The same problem exists in the sentence =E2=80=9C*An incoming label=
 collision occurs if the SIDs of the set of FECs {FEC1, FEC2,..., FECk} map=
s to the same incoming SR MPLS label "L1"*=E2=80=9D
>
> #Ahmed: The sentence is removed as you suggested
>
> 2.       In section 2.10.1 the preposition =E2=80=9C*to*=E2=80=9D between=
 the words =E2=80=9C
> *according*=E2=80=9D and =E2=80=9C*MPLS*=E2=80=9D is missing in the fragm=
ent =E2=80=9C*Push the
> calculated label according the MPLS label pushing rules specified in
> [RFC3032]*=E2=80=9D.
>
> #Ahmed added the missing "to"
>
> 3.       Problems with references:
>
> a.       As reported by Sergey
> <https://mailarchive.ietf.org/arch/msg/spring/C_W3KBcL2AWxmlB7Sp53_PvqbQA=
>,
> there are two occurrences of references to RFC 8042 =E2=80=9COSPF Two-Par=
t Metric=E2=80=9D
> instead of RFC 8402. Lots of thanks to Sergey for catching this
>
> #Ahmed: Corrected, thanks again
>
> b.       Reference to RFC 8174 mistakenly contains a link to  RFC 7274.
>
> #Ahmed: Corrected
>
> Hopefully these notes will be useful.
>
> #Ahmed: VERY useful
>
> Regards,
>
> Sasha
>
>
>
> Office: +972-39266302
>
> Cell:      +972-549266302
>
> Email:   Alexander.Vainshtein@ecitele.com
>
>
>
> _________________________________________________________________________=
__
>
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>


--=20
Przemyslaw "PK" Krol |  Strategic Network Engineer ing | pkrol@google.com

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<div dir=3D"ltr"><div dir=3D"ltr"><div dir=3D"ltr">Hi Ahmed,<div><br></div>=
<div>Cosmetic minor nit:</div><div><font face=3D"monospace, monospace">2.5.=
 Incoming Label Collision<br></font></div><div><font face=3D"monospace, mon=
ospace">[...]</font></div><div>both links in the &#39;(Mirrored SID)&#39; s=
ection need a cleanup / update</div><div><br></div><div>thanks,</div><div>p=
k</div><div><br></div></div></div></div><br><div class=3D"gmail_quote"><div=
 dir=3D"ltr" class=3D"gmail_attr">On Fri, Mar 29, 2019 at 2:14 AM Ahmed Bas=
handy &lt;<a href=3D"mailto:abashandy.ietf@gmail.com" target=3D"_blank">aba=
shandy.ietf@gmail.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_qu=
ote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,20=
4);padding-left:1ex">
 =20
   =20
 =20
  <div bgcolor=3D"#FFFFFF">
    <p>Thanks a lot for the review</p>
    <p>I uploaded version 19 of the draft, which, IMO, addresses all
      your comments</p>
    <p>See the reply &quot;#Ahmed&quot;<br>
    </p>
    <div class=3D"gmail-m_-5642514272089850127gmail-m_-2303302420061239125m=
oz-cite-prefix">On 3/10/19 9:55 AM, Alexander
      Vainshtein wrote:<br>
    </div>
    <blockquote type=3D"cite">
     =20
     =20
     =20
      <div class=3D"gmail-m_-5642514272089850127gmail-m_-230330242006123912=
5WordSection1">
        <p><span style=3D"font-size:10pt;font-family:Verdana,sans-serif;col=
or:black">Hello,
            <u></u><u></u></span></p>
        <p><span style=3D"font-size:10pt;font-family:Verdana,sans-serif;col=
or:black">I
            have been selected as the Routing Directorate reviewer for
            this draft. The Routing Directorate seeks to review all
            routing or routing-related drafts as they pass through IETF
            last call and IESG review, and sometimes on special request.
            The purpose of the review is to provide assistance to the
            Routing ADs. For more information about the Routing
            Directorate, please see
            <a href=3D"http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir=
" target=3D"_blank"><span class=3D"gmail-m_-5642514272089850127gmail-m_-230=
3302420061239125icon"><span style=3D"font-family:Arial,sans-serif;color:rgb=
(187,0,0);text-decoration:none">=E2=80=8B</span></span>http://trac.tools.ie=
tf.org/area/rtg/trac/wiki/RtgDir</a>
            <u></u><u></u></span></p>
        <p><span style=3D"font-size:10pt;font-family:Verdana,sans-serif;col=
or:black">Although
            these comments are primarily for the use of the Routing ADs,
            it would be helpful if you could consider them along with
            any other IETF Last Call comments that you receive, and
            strive to resolve them through discussion or by updating the
            draft. <u></u><u></u></span></p>
        <p><span style=3D"font-size:10pt;font-family:Verdana,sans-serif;col=
or:black">Document:
          </span><span style=3D"font-family:Calibri,sans-serif;color:rgb(31=
,73,125)">review
            of draft-ietf-spring-segment-routing-mpls-18</span><span style=
=3D"font-size:10pt;font-family:Verdana,sans-serif;color:black"><br>
            Reviewer: Alexander (=E2=80=9CSasha=E2=80=9D) Vainshtein<br>
            Review Date: 10-Mar-19<br>
            IETF LC End Date: 07-Mar-2019<br>
            Intended Status: </span><span style=3D"font-size:11.5pt;color:r=
gb(34,34,34);background:white">Proposed
            Standard</span><span style=3D"font-size:10pt;font-family:Verdan=
a,sans-serif;color:black"><u></u><u></u></span></p>
        <p><strong><span style=3D"font-size:10pt;font-family:Verdana,sans-s=
erif;color:black">Summary:</span></strong><span style=3D"font-size:10pt;fon=
t-family:Verdana,sans-serif;color:black">
            I have some minor concerns about this document that I think
            should be resolved before publication.<u></u><u></u></span></p>
        <p><b><span style=3D"font-size:10pt;font-family:Verdana,sans-serif;=
color:black">Comments</span></b><span style=3D"font-size:10pt;font-family:V=
erdana,sans-serif;color:black">:
            <u></u><u></u></span></p>
        <p><span style=3D"font-size:10pt;font-family:Verdana,sans-serif;col=
or:black">I
            have done an early RTG-DIR review of the -14 version of the
            draft half a year ago, and the issues I=E2=80=99ve raised then =
have
            been resolved in the subsequent versions one way or
            another). Therefore this review has been intentionally
            focused on the changes done to the draft in the few recent
            versions.
            <u></u><u></u></span></p>
        <p><span style=3D"font-size:10pt;font-family:Verdana,sans-serif;col=
or:black">In
            my previous review I have noticed that the draft was not
            easy reading for me. Since then readability of the draft has
            been improved. However, there are still several places in
            the new text that are still difficult to parse. <u></u><u></u><=
/span></p>
        <p><span style=3D"font-size:10pt;font-family:Verdana,sans-serif;col=
or:black">I
            did not run the nits checker on the draft, so my list of
            nits is probably incomplete.<u></u><u></u></span></p>
        <p><span style=3D"font-size:10pt;font-family:Verdana,sans-serif;col=
or:black">Just
            as with my earlier review, I send this one also to the MPLS
            WG list =E2=80=93 and for the same reasons.<u></u><u></u></span=
></p>
        <p><span style=3D"font-size:10pt;font-family:Verdana,sans-serif;col=
or:black">I
            tried to discuss my review privately with the authors, but
            they did not respond.<u></u><u></u></span></p>
        <p><b><span style=3D"font-size:10pt;font-family:Verdana,sans-serif;=
color:black">Major
              Issues</span></b><span style=3D"font-size:10pt;font-family:Ve=
rdana,sans-serif;color:black">:
            No major issues found.<u></u><u></u></span></p>
        <p><b><span style=3D"font-size:10pt;font-family:Verdana,sans-serif;=
color:black">Minor
              Issues</span></b><span style=3D"font-size:10pt;font-family:Ve=
rdana,sans-serif;color:black">:
            <u></u><u></u></span></p>
        <pre style=3D"margin-left:39.75pt"><span style=3D"font-family:Verda=
na,sans-serif;color:black"><span>1.<span style=3D"font:7pt &quot;Times New =
Roman&quot;">=C2=A0=C2=A0=C2=A0 </span></span></span><span dir=3D"LTR"></sp=
an><span style=3D"font-family:Verdana,sans-serif;color:black">The text in S=
ection 1 states that</span> =E2=80=9C<b>a network operator SHOULD configure=
 at least one node segment per routing instance, topology, algorithm</b>=E2=
=80=9D <span style=3D"font-family:Verdana,sans-serif;color:black">and conti=
nues that</span> =E2=80=9C<b>An implementation MAY check that an IGP node-S=
ID is not associated with a prefix that is owned by more than one router wi=
thin the same routing domain, If so, it SHOULD NOT use this Node-SID, MAY u=
se another one if available, and SHOULD log an error</b><span style=3D"font=
-family:Verdana,sans-serif;color:black">=E2=80=9D. This looks somewhat cont=
roversial to me because:<u></u><u></u></span></pre>
        <pre style=3D"margin-left:75.75pt"><span style=3D"font-family:Verda=
na,sans-serif;color:black"><span>a.<span style=3D"font:7pt &quot;Times New =
Roman&quot;">=C2=A0=C2=A0=C2=A0 </span></span></span><span dir=3D"LTR"></sp=
an><span style=3D"font-family:Verdana,sans-serif;color:black">The check of =
the Node SID not being owned by more than one router in the routing domain =
is defined as purely optional. According to RFC 2119, implementations that =
choose to implement such a check must be able to interoperate with implemen=
tations that do not implement it <u></u><u></u></span></pre>
        <pre style=3D"margin-left:75.75pt"><span style=3D"font-family:Verda=
na,sans-serif;color:black"><span>b.<span style=3D"font:7pt &quot;Times New =
Roman&quot;">=C2=A0=C2=A0=C2=A0 </span></span></span><span dir=3D"LTR"></sp=
an><span style=3D"font-family:Verdana,sans-serif;color:black">The recommend=
ed handling of the results of this check (fully aligned with the text in Se=
ction 3.2 pf RFC 8402 that prohibits using prefixes owned by more than one =
router in the domain as Node-SODs) strongly suggests that the prefix that i=
s owned by more than one router in the domain is unusable as the Node SID =
=C2=A0<u></u><u></u></span></pre>
        <pre style=3D"margin-left:39.75pt"><span style=3D"font-family:Verda=
na,sans-serif;color:black">I see two possibilities to resolve this controve=
rsy: either make the check in question a =E2=80=9Creal requirement=E2=80=9D=
 (i.e., replace </span><b>MAY</b><span style=3D"font-family:Verdana,sans-se=
rif;color:black"> with </span><b>SHOULD</b><span style=3D"font-family:Verda=
na,sans-serif;color:black"> or even </span><b>MUST</b><span style=3D"font-f=
amily:Verdana,sans-serif;color:black">), or explain why it is safe enough n=
ot to implement such a check (i.e., how implementations that support this c=
heck and implementations that do not support it can interoperate within a g=
iven routing domain)</span>. <span style=3D"font-family:Verdana,sans-serif;=
color:black">The first of these options seems to me aligned with Section 3.=
2 in RFC 8402 that says that =E2=80=9C</span><b><span style=3D"font-size:11=
pt">An IGP Node-SID MUST NOT be associated with a prefix that is owned by m=
ore than one router within the same routing domain</span></b><span style=3D=
"font-family:Verdana,sans-serif;color:black">=E2=80=9D. </span>=C2=A0=C2=A0=
=C2=A0<span style=3D"font-family:Verdana,sans-serif;color:black"><u></u><u>=
</u></span></pre>
      </div>
    </blockquote>
    #Ahmed: I replaced the MAY with SHOULD<br>
    <blockquote type=3D"cite">
      <div class=3D"gmail-m_-5642514272089850127gmail-m_-230330242006123912=
5WordSection1">
        <p class=3D"gmail-m_-5642514272089850127gmail-m_-230330242006123912=
5MsoListParagraph" style=3D"margin-left:39.75pt">
          <span>2.<span style=3D"font:7pt &quot;Times New Roman&quot;">=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
            </span></span><span dir=3D"LTR"></span>I have=C2=A0 a
          problem with the <span style=3D"background:yellow">
            highlighted</span> part of the following text in Section
          2.5:<u></u><u></u></p>
        <p class=3D"MsoNormal" style=3D"margin-left:18pt"><span>=C2=A0=C2=
=A0
          </span><b><span style=3D"font-family:&quot;Courier New&quot;">An
              implementation MUST NOT allow the MCCs belonging to the
              same<u></u><u></u></span></b></p>
        <p class=3D"MsoNormal" style=3D"margin-left:18pt"><b><span style=3D=
"font-family:&quot;Courier New&quot;">=C2=A0=C2=A0 router to
              assign the same incoming label to more than one SR FEC.
              <span style=3D"background:yellow">An<u></u><u></u></span></sp=
an></b></p>
        <p class=3D"MsoNormal" style=3D"margin-left:18pt"><b><span>=C2=A0=
=C2=A0
              implementation that allows such behavior is considered as
              faulty.</span></b><b><span style=3D"font-family:&quot;Courier=
 New&quot;"><u></u><u></u></span></b></p>
        <p class=3D"MsoNormal" style=3D"margin-left:18pt"><b><span style=3D=
"font-family:&quot;Courier New&quot;">=C2=A0=C2=A0
              <span style=3D"background:yellow">Procedures
                defined in this document equally applies to this case,<u></=
u><u></u></span></span></b></p>
        <p class=3D"MsoNormal" style=3D"margin-left:18pt"><b><span>=C2=A0=
=C2=A0 both
              for incoming label collision (<a href=3D"https://tools.ietf.o=
rg/html/draft-ietf-spring-segment-routing-mpls-18#section-2.5" target=3D"_b=
lank"><span style=3D"color:windowtext;text-decoration:none">Section
                  2.5</span></a>) and the effect on<u></u><u></u></span></b=
></p>
        <p class=3D"MsoNormal" style=3D"margin-left:18pt"><b><span>=C2=A0=
=C2=A0
              outgoing label programming (<a href=3D"https://tools.ietf.org=
/html/draft-ietf-spring-segment-routing-mpls-18#section-2.6" target=3D"_bla=
nk"><span style=3D"color:windowtext;text-decoration:none">Section
                  2.6</span></a>).</span></b><b><span style=3D"font-family:=
&quot;Courier New&quot;"><u></u><u></u></span></b></p>
        <pre style=3D"margin-left:75.75pt"><span style=3D"font-family:Verda=
na,sans-serif;color:black"><span>a.<span style=3D"font:7pt &quot;Times New =
Roman&quot;">=C2=A0=C2=A0=C2=A0 </span></span></span><span dir=3D"LTR"></sp=
an><span style=3D"font-family:Verdana,sans-serif;color:black">The Section i=
n question deals with incoming label collision (in fact, the text that imme=
diately follows the problematic fragment states that =E2=80=9C</span><b><sp=
an style=3D"font-size:11pt">The objective of the following steps is to dete=
rministically install in the MPLS Incoming Label Map, also known as label F=
IB, a single FEC with the incoming label &quot;L1&quot;</span></b><span sty=
le=3D"font-family:Verdana,sans-serif;color:black">=E2=80=9D <u></u><u></u><=
/span></pre>
        <pre style=3D"margin-left:75.75pt"><span style=3D"font-family:Verda=
na,sans-serif;color:black"><span>b.<span style=3D"font:7pt &quot;Times New =
Roman&quot;">=C2=A0=C2=A0=C2=A0 </span></span></span><span dir=3D"LTR"></sp=
an><span style=3D"font-family:Verdana,sans-serif;color:black">As a conseque=
nce, any mention of=C2=A0 </span><b><span style=3D"font-size:11pt">outgoing=
 label programming</span></b><span style=3D"font-family:Verdana,sans-serif;=
color:black">, looks out of context (even accompanied by a forward referenc=
e to Section 2.6)<u></u><u></u></span></pre>
        <pre style=3D"margin-left:75.75pt"><span style=3D"font-family:Verda=
na,sans-serif;color:black"><span>c.<span style=3D"font:7pt &quot;Times New =
Roman&quot;">=C2=A0=C2=A0=C2=A0 </span></span></span><span dir=3D"LTR"></sp=
an><span style=3D"font-family:Verdana,sans-serif;color:black">Section 2.6 c=
overs the impact of incoming label collision on programming of outgoing lab=
els in quite a generic way. Therefore I think that the =C2=A0<span style=3D=
"background:yellow">highlighted</span> part of the quoted fragment can be s=
afely removed (complete with the grammar mistake).<u></u><u></u></span></pr=
e>
        <pre style=3D"margin-left:75.75pt"><span style=3D"font-family:Verda=
na,sans-serif;color:black"><span>d.<span style=3D"font:7pt &quot;Times New =
Roman&quot;">=C2=A0=C2=A0=C2=A0 </span></span></span><span dir=3D"LTR"></sp=
an><span style=3D"font-family:Verdana,sans-serif;color:black">I also do not=
 see any value in stating that an implementations that violates a mandatory=
 requirement of the spec is faulty =E2=80=93 isn=E2=80=99t that self-eviden=
t?</span></pre>
      </div>
    </blockquote>
    <p>#Ahmed: I removed the highlighted text because I agree with what
      you said in item (d) that it has no value</p>
    <p><br>
    </p>
    <blockquote type=3D"cite">
      <div class=3D"gmail-m_-5642514272089850127gmail-m_-230330242006123912=
5WordSection1">
        <pre style=3D"margin-left:75.75pt"><span style=3D"font-family:Verda=
na,sans-serif;color:black"><u></u><u></u></span></pre>
        <pre style=3D"margin-left:39.75pt"><span style=3D"font-family:Verda=
na,sans-serif;color:black"><span>3.<span style=3D"font:7pt &quot;Times New =
Roman&quot;">=C2=A0=C2=A0=C2=A0 </span></span></span><span dir=3D"LTR"></sp=
an><span style=3D"font-family:Verdana,sans-serif;color:black">The <span sty=
le=3D"background:yellow">highlighted</span> text in Section 2.8 is not accu=
rate:<u></u><u></u></span></pre>
        <pre style=3D"margin-left:21.75pt"><b><span style=3D"color:black">=
=C2=A0=C2=A0 For Local SIDs, the MCC is responsible for downloading the cor=
rect<u></u><u></u></span></b></pre>
        <pre style=3D"margin-left:21.75pt"><b><span style=3D"color:black">=
=C2=A0=C2=A0 label value to FIB. For example, an IGP with SR extensions [I-=
D.ietf-<u></u><u></u></span></b></pre>
        <pre style=3D"margin-left:21.75pt"><b><span style=3D"color:black">=
=C2=A0=C2=A0 isis-segment-routing-extensions, I-D.ietf-ospf-segment-routing=
-<u></u><u></u></span></b></pre>
        <pre style=3D"margin-left:21.75pt"><b><span style=3D"color:black">=
=C2=A0=C2=A0 extensions] <span style=3D"background:yellow">allocates</span>=
 and downloads the MPLS label corresponding to<u></u><u></u></span></b></pr=
e>
        <pre style=3D"margin-left:21.75pt"><b><span style=3D"color:black">=
=C2=A0=C2=A0 an Adj-SID [<a href=3D"https://tools.ietf.org/html/rfc8402" ti=
tle=3D"&quot;Segment Routing Architecture&quot;" target=3D"_blank">RFC8402<=
/a>].<u></u><u></u></span></b></pre>
        <pre style=3D"margin-left:75.75pt"><b><span style=3D"color:black"><=
span>a.<span style=3D"font:7pt &quot;Times New Roman&quot;">=C2=A0 </span><=
/span></span></b><span dir=3D"LTR"></span><span style=3D"font-family:Verdan=
a,sans-serif;color:black">IGP with SR extensions</span><b><span style=3D"co=
lor:black"> </span></b><span style=3D"font-family:Verdana,sans-serif;color:=
black">may indeed dynamically allocate and download MPLS labels acting as l=
ocal Adj-SIDs </span><b><span style=3D"color:black"><u></u><u></u></span></=
b></pre>
        <pre style=3D"margin-left:75.75pt"><b><span style=3D"color:black"><=
span>b.<span style=3D"font:7pt &quot;Times New Roman&quot;">=C2=A0 </span><=
/span></span></b><span dir=3D"LTR"></span><span style=3D"font-family:Verdan=
a,sans-serif;color:black">However, these labels can be allocated by configu=
ration (e.g. as mentioned in the tie-breaking rules in Section 2.5.1 and in=
 the example in Section A.2.3 in the draft), in which case IGP with SR exte=
nsions would only responsible for its advertisement and installation. </spa=
n><b><span style=3D"color:black"><u></u><u></u></span></b></pre>
      </div>
    </blockquote>
    #Ahmed: I removed the highlighted word &quot;allocated&quot; <br>
    <blockquote type=3D"cite">
      <div class=3D"gmail-m_-5642514272089850127gmail-m_-230330242006123912=
5WordSection1">
        <pre><span style=3D"font-family:Verdana,sans-serif;color:black"><u>=
</u>=C2=A0<u></u></span></pre>
        <pre><b><span style=3D"font-family:Verdana,sans-serif;color:black">=
NITS</span></b><span style=3D"font-family:Verdana,sans-serif;color:black">:=
<u></u><u></u></span></pre>
        <pre><span style=3D"font-family:Verdana,sans-serif;color:black"> :<=
/span><b><span style=3D"color:black"><u></u><u></u></span></b></pre>
        <pre style=3D"margin-left:39.75pt"><span style=3D"font-family:Verda=
na,sans-serif;color:black"><span>1.<span style=3D"font:7pt &quot;Times New =
Roman&quot;">=C2=A0=C2=A0=C2=A0 </span></span></span><span dir=3D"LTR"></sp=
an><span style=3D"font-family:Verdana,sans-serif;color:black">In section 2.=
5:<u></u><u></u></span></pre>
        <pre style=3D"margin-left:72pt"><span style=3D"font-family:Verdana,=
sans-serif;color:black"><span>a.<span style=3D"font:7pt &quot;Times New Rom=
an&quot;">=C2=A0=C2=A0=C2=A0 </span></span></span><span dir=3D"LTR"></span>=
<span style=3D"font-family:Verdana,sans-serif;color:black">In the sentence =
=E2=80=9C</span><b>Procedures defined in this document equally applies to t=
his case</b><span style=3D"font-family:Verdana,sans-serif;color:black">=E2=
=80=9D the noun is in plural but the verb is in singular. (If this sentence=
 is removed as suggested above, this nit disappears)<u></u><u></u></span></=
pre>
        <pre style=3D"margin-left:72pt"><span style=3D"font-family:Verdana,=
sans-serif;color:black"><span>b.<span style=3D"font:7pt &quot;Times New Rom=
an&quot;">=C2=A0=C2=A0=C2=A0 </span></span></span><span dir=3D"LTR"></span>=
<span style=3D"font-family:Verdana,sans-serif;color:black">The same problem=
 exists in the sentence =E2=80=9C</span><b><span style=3D"color:black">An i=
ncoming label collision occurs if the SIDs of the set of FECs {FEC1, FEC2,.=
.., FECk} maps to the same incoming SR MPLS label &quot;L1&quot;</span></b>=
<span style=3D"font-family:Verdana,sans-serif;color:black">=E2=80=9D</span>=
</pre>
      </div>
    </blockquote>
    #Ahmed: The sentence is removed as you suggested<br>
    <blockquote type=3D"cite">
      <div class=3D"gmail-m_-5642514272089850127gmail-m_-230330242006123912=
5WordSection1">
        <pre style=3D"margin-left:72pt"><span style=3D"font-family:Verdana,=
sans-serif;color:black"><u></u><u></u></span></pre>
        <p class=3D"gmail-m_-5642514272089850127gmail-m_-230330242006123912=
5MsoListParagraph" style=3D"margin-left:39.75pt">
          <span>2.<span style=3D"font:7pt &quot;Times New Roman&quot;">=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
            </span></span><span dir=3D"LTR"></span>In
          section 2.10.1 the preposition =E2=80=9C<b><span style=3D"font-fa=
mily:&quot;Courier New&quot;">to</span></b>=E2=80=9D
          between the words =E2=80=9C<b><span>according</span></b>=E2=80=9D=
 and =E2=80=9C<b><span style=3D"font-family:&quot;Courier New&quot;">MPLS</=
span></b>=E2=80=9D
          is missing in the fragment =E2=80=9C<b><span style=3D"font-family=
:&quot;Courier New&quot;">Push the
              calculated label according the MPLS label pushing rules
              specified in [RFC3032]</span></b>=E2=80=9D.</p>
      </div>
    </blockquote>
    #Ahmed added the missing &quot;to&quot;<br>
    <blockquote type=3D"cite">
      <div class=3D"gmail-m_-5642514272089850127gmail-m_-230330242006123912=
5WordSection1">
        <p class=3D"gmail-m_-5642514272089850127gmail-m_-230330242006123912=
5MsoListParagraph" style=3D"margin-left:39.75pt"><u></u><u></u></p>
        <p class=3D"gmail-m_-5642514272089850127gmail-m_-230330242006123912=
5MsoListParagraph" style=3D"margin-left:39.75pt">
          <span>3.<span style=3D"font:7pt &quot;Times New Roman&quot;">=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
            </span></span><span dir=3D"LTR"></span>Problems
          with references:<u></u><u></u></p>
        <p class=3D"gmail-m_-5642514272089850127gmail-m_-230330242006123912=
5MsoListParagraph" style=3D"margin-left:72pt">
          <span>a.<span style=3D"font:7pt &quot;Times New Roman&quot;">=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
            </span></span><span dir=3D"LTR"></span><a href=3D"https://maila=
rchive.ietf.org/arch/msg/spring/C_W3KBcL2AWxmlB7Sp53_PvqbQA" target=3D"_bla=
nk">As reported by Sergey</a>, there are
          two occurrences of references to RFC 8042 =E2=80=9COSPF Two-Part
          Metric=E2=80=9D instead of RFC 8402. Lots of thanks to Sergey for
          catching this</p>
      </div>
    </blockquote>
    #Ahmed: Corrected, thanks again<br>
    <blockquote type=3D"cite">
      <div class=3D"gmail-m_-5642514272089850127gmail-m_-230330242006123912=
5WordSection1">
        <p class=3D"gmail-m_-5642514272089850127gmail-m_-230330242006123912=
5MsoListParagraph" style=3D"margin-left:72pt"><u></u><u></u></p>
        <p class=3D"gmail-m_-5642514272089850127gmail-m_-230330242006123912=
5MsoListParagraph" style=3D"margin-left:72pt">
          <span>b.<span style=3D"font:7pt &quot;Times New Roman&quot;">=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
            </span></span><span dir=3D"LTR"></span>Reference
          to RFC 8174 mistakenly contains a link to=C2=A0 RFC 7274.</p>
      </div>
    </blockquote>
    #Ahmed: Corrected<br>
    <blockquote type=3D"cite">
      <div class=3D"gmail-m_-5642514272089850127gmail-m_-230330242006123912=
5WordSection1">
        <p class=3D"gmail-m_-5642514272089850127gmail-m_-230330242006123912=
5MsoListParagraph" style=3D"margin-left:72pt"><u></u><u></u></p>
        <p><span style=3D"font-size:10pt;font-family:Verdana,sans-serif;col=
or:black">Hopefully
            these notes will be useful.</span></p>
      </div>
    </blockquote>
    #Ahmed: VERY useful<br>
    <blockquote type=3D"cite">
      <div class=3D"gmail-m_-5642514272089850127gmail-m_-230330242006123912=
5WordSection1">
        <p><span style=3D"font-size:10pt;font-family:Verdana,sans-serif;col=
or:black"><u></u><u></u></span></p>
        <p class=3D"MsoNormal">Regards,<u></u><u></u></p>
        <p class=3D"MsoNormal">Sasha<u></u><u></u></p>
        <p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
        <p class=3D"MsoNormal">Office: +972-39266302<u></u><u></u></p>
        <p class=3D"MsoNormal">Cell:=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 +972-549=
266302<u></u><u></u></p>
        <p class=3D"MsoNormal">Email:=C2=A0=C2=A0 <a class=3D"gmail-m_-5642=
514272089850127gmail-m_-2303302420061239125moz-txt-link-abbreviated" href=
=3D"mailto:Alexander.Vainshtein@ecitele.com" target=3D"_blank">Alexander.Va=
inshtein@ecitele.com</a><u></u><u></u></p>
        <p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
      </div>
      <br clear=3D"all">
___________________________________________________________________________=
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Subject: [spring] draft-ietf-idr-segment-routing-te-policy-05 - EXP NULL imposition
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--00000000000081a59505854937b9
Content-Type: text/plain; charset="UTF-8"

Greetings,

I have two *minor* comments regarding section 2.4.4

2.4.4.  Explicit NULL Label Policy Sub-TLV


 The policy signaled in this Sub-TLV MAY be overridden by local
      policy.


[pk] Wouldn't something like 'The behavior signaled in this Sub-TLV
MAY be overridden by local configuration/implementation/etc' be
better?

In this daft's context policy has a defined meaning and 'signalling a
policy' or 'local policy' may be confusing.


Also, do you find useful listing such local behaviors or is it too
implementation specific? The reason I'm asking is because I've seen 3
ways of handling automatic EXP NULL push (either available already or
in development/discussion):

- based on Endpoint's AF (if packet's AF doesn't match Endpoint's AF
-> PUSH EXP NULL)

- based on the AF of SIDs/labels in the Segment List (if packet's AF
doesn't match SID AF -> PUSH EXP NULL)

- always assume PUSH for IPv6 (which also means always assume
IPv4-only dataplane)

- always assume PUSH for IPv4 (which also means always assume
IPv6-only dataplane)

Each of these behaviors make assumptions depending on the primary use
case and perhaps having them documented (and potentially referred to
as Option A, Option B, etc or something similar) would help avoiding
confusion when discussing with vendors.


PS: I assume the Type number assignment will be handled by the ongoing
effort Ketan has mentioned in the context of policy name Sub-TLV but
just in case wanted to call this out too.


thanks,

pk



 --
Przemyslaw "PK" Krol |  Strategic Network Engineer ing | pkrol@google.com

--00000000000081a59505854937b9
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div dir=3D"ltr"><div dir=3D"ltr"><div dir=3D"ltr">Greetin=
gs,<div><br></div><div>I have two <b>minor</b> comments regarding section 2=
.4.4</div><div><span style=3D"font-family:monospace,monospace"><br></span><=
/div><div><span style=3D"font-family:monospace,monospace">2.4.4.=C2=A0 Expl=
icit NULL Label Policy Sub-TLV</span><br></div><div><br></div><div><br></di=
v><div><pre class=3D"gmail-m_6954356766953647853gmail-newpage" style=3D"fon=
t-size:13.3333px;margin-top:0px;margin-bottom:0px;break-before:page;color:r=
gb(0,0,0)"> The policy signaled in this Sub-TLV MAY be overridden by local
      policy.</pre><pre class=3D"gmail-m_6954356766953647853gmail-newpage" =
style=3D"font-size:13.3333px;margin-top:0px;margin-bottom:0px;break-before:=
page;color:rgb(0,0,0)"><br></pre><pre class=3D"gmail-m_6954356766953647853g=
mail-newpage" style=3D"margin-top:0px;margin-bottom:0px;break-before:page">=
<font face=3D"arial, helvetica, sans-serif" style=3D"color:rgb(0,0,0);font-=
size:13.3333px">[pk] Wouldn&#39;t something like &#39;The behavior signaled=
 in this Sub-TLV MAY be overridden by local configuration/implementation/et=
c&#39; be better?</font></pre><pre class=3D"gmail-m_6954356766953647853gmai=
l-newpage" style=3D"margin-top:0px;margin-bottom:0px;break-before:page"><fo=
nt color=3D"#000000" face=3D"arial, helvetica, sans-serif"><span style=3D"f=
ont-size:13.3333px">In this daft&#39;s context policy has a defined meaning=
 and &#39;signalling a policy&#39; or &#39;local policy&#39; may be confusi=
ng.</span></font></pre><pre class=3D"gmail-m_6954356766953647853gmail-newpa=
ge" style=3D"margin-top:0px;margin-bottom:0px;break-before:page"><font colo=
r=3D"#000000" face=3D"arial, helvetica, sans-serif"><span style=3D"font-siz=
e:13.3333px"><br></span></font></pre><pre class=3D"gmail-m_6954356766953647=
853gmail-newpage" style=3D"margin-top:0px;margin-bottom:0px;break-before:pa=
ge"><font color=3D"#000000" face=3D"arial, helvetica, sans-serif"><span sty=
le=3D"font-size:13.3333px">Also, do you find useful listing such local beha=
viors or is it too implementation specific? The reason I&#39;m asking is be=
cause I&#39;ve seen 3 ways of handling automatic EXP NULL push (either avai=
lable already or in development/discussion):</span></font></pre><pre class=
=3D"gmail-m_6954356766953647853gmail-newpage" style=3D"margin-top:0px;margi=
n-bottom:0px;break-before:page"><font color=3D"#000000" face=3D"arial, helv=
etica, sans-serif"><span style=3D"font-size:13.3333px">- based on Endpoint&=
#39;s AF (if packet&#39;s AF doesn&#39;t match Endpoint&#39;s AF -&gt; PUSH=
 EXP NULL)</span></font></pre><pre class=3D"gmail-m_6954356766953647853gmai=
l-newpage" style=3D"margin-top:0px;margin-bottom:0px;break-before:page"><fo=
nt color=3D"#000000" face=3D"arial, helvetica, sans-serif"><span style=3D"f=
ont-size:13.3333px">- based on the AF of SIDs/labels in the Segment List (i=
f packet&#39;s AF doesn&#39;t match SID AF -&gt; PUSH EXP NULL)</span></fon=
t></pre><pre class=3D"gmail-m_6954356766953647853gmail-newpage" style=3D"ma=
rgin-top:0px;margin-bottom:0px;break-before:page"><font color=3D"#000000" f=
ace=3D"arial, helvetica, sans-serif"><span style=3D"font-size:13.3333px">- =
always assume PUSH for IPv6 (which also means always assume IPv4-only datap=
lane)</span></font></pre><pre class=3D"gmail-m_6954356766953647853gmail-new=
page" style=3D"margin-top:0px;margin-bottom:0px;break-before:page"><font co=
lor=3D"#000000" face=3D"arial, helvetica, sans-serif"><span style=3D"font-s=
ize:13.3333px">- always assume PUSH for IPv4 (which also means always assum=
e IPv6-only dataplane)</span></font></pre><pre class=3D"gmail-m_69543567669=
53647853gmail-newpage" style=3D"margin-top:0px;margin-bottom:0px;break-befo=
re:page"><font color=3D"#000000" face=3D"arial, helvetica, sans-serif"><spa=
n style=3D"font-size:13.3333px">Each of these behaviors make assumptions de=
pending on the primary use case and perhaps having them documented (and pot=
entially referred to as Option A, Option B, etc or something similar) would=
 help avoiding confusion when discussing with vendors.</span></font></pre><=
pre class=3D"gmail-m_6954356766953647853gmail-newpage" style=3D"margin-top:=
0px;margin-bottom:0px;break-before:page"><font color=3D"#000000" face=3D"ar=
ial, helvetica, sans-serif"><span style=3D"font-size:13.3333px"><br></span>=
</font></pre><pre class=3D"gmail-m_6954356766953647853gmail-newpage" style=
=3D"margin-top:0px;margin-bottom:0px;break-before:page"><font color=3D"#000=
000" face=3D"arial, helvetica, sans-serif"><span style=3D"font-size:13.3333=
px">PS: I assume the Type number assignment will be handled by the ongoing =
effort Ketan has mentioned in the context of policy name Sub-TLV but just i=
n case wanted to call this out too.</span></font></pre><pre class=3D"gmail-=
m_6954356766953647853gmail-newpage" style=3D"margin-top:0px;margin-bottom:0=
px;break-before:page"><font color=3D"#000000" face=3D"arial, helvetica, san=
s-serif"><span style=3D"font-size:13.3333px"><br></span></font></pre><pre c=
lass=3D"gmail-m_6954356766953647853gmail-newpage" style=3D"margin-top:0px;m=
argin-bottom:0px;break-before:page"><font color=3D"#000000" face=3D"arial, =
helvetica, sans-serif"><span style=3D"font-size:13.3333px">thanks,</span></=
font></pre><pre class=3D"gmail-m_6954356766953647853gmail-newpage" style=3D=
"margin-top:0px;margin-bottom:0px;break-before:page"><font color=3D"#000000=
" face=3D"arial, helvetica, sans-serif"><span style=3D"font-size:13.3333px"=
>pk</span></font></pre><pre class=3D"gmail-m_6954356766953647853gmail-newpa=
ge" style=3D"margin-top:0px;margin-bottom:0px;break-before:page"><font colo=
r=3D"#000000" face=3D"arial, helvetica, sans-serif"><span style=3D"font-siz=
e:13.3333px"><br></span></font></pre><pre class=3D"gmail-m_6954356766953647=
853gmail-newpage" style=3D"margin-top:0px;margin-bottom:0px;break-before:pa=
ge"><font color=3D"#000000" face=3D"arial, helvetica, sans-serif"><span sty=
le=3D"font-size:13.3333px"><br></span></font></pre><pre class=3D"gmail-m_69=
54356766953647853gmail-newpage" style=3D"margin-top:0px;margin-bottom:0px;b=
reak-before:page"><font color=3D"#000000" face=3D"arial, helvetica, sans-se=
rif"><span style=3D"font-size:13.3333px"> </span></font></pre></div><div>--=
 <br><div dir=3D"ltr" class=3D"gmail-m_6954356766953647853gmail_signature">=
<div dir=3D"ltr"><div><div dir=3D"ltr"><div><div dir=3D"ltr"><div><div dir=
=3D"ltr"><div><div dir=3D"ltr"><div><div dir=3D"ltr"><div><div style=3D"pad=
ding-top:10px;margin-top:10px"><table cellspacing=3D"0" cellpadding=3D"0" s=
tyle=3D"color:rgb(0,0,0);font-family:Times;line-height:normal;font-size:med=
ium"><tbody><tr style=3D"color:rgb(85,85,85);font-family:sans-serif;font-si=
ze:small"><td nowrap style=3D"border-top:2px solid rgb(213,15,37)">Przemysl=
aw &quot;PK&quot; Krol |</td><td nowrap style=3D"border-top:2px solid rgb(5=
1,105,232)">=C2=A0Strategic Network Engineer</td><td nowrap style=3D"border=
-top:2px solid rgb(0,153,57)"><span style=3D"line-height:19px;white-space:n=
ormal"><span style=3D"border-width:2px 0px 0px;border-style:solid;border-co=
lor:rgb(51,105,232);padding-top:2px;margin-top:2px">ing |</span><span style=
=3D"border-width:2px 0px 0px;border-style:solid;border-color:rgb(0,153,57);=
padding-top:2px;margin-top:2px">=C2=A0<a href=3D"mailto:pkrol@google.com" t=
arget=3D"_blank"><font color=3D"#1155cc">pkrol@google.com</font></a>=C2=A0<=
/span></span></td><td nowrap style=3D"border-top:2px solid rgb(238,178,17)"=
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From: Robert Raszuk <rraszuk@gmail.com>
Date: Sat, 30 Mar 2019 14:22:40 +0100
Message-ID: <CA+b+ERmo9cPgCtnDgvkqNkFiLXdOJikWRLOKXM9NQfbNtJ__Zg@mail.gmail.com>
To: Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>
Cc: "Rajiv Asati (rajiva)" <rajiva@cisco.com>, "ipv6@ietf.org" <ipv6@ietf.org>, "spring@ietf.org" <spring@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/rR7lKkGtplHbU4go_lo_LzNP4D4>
Subject: Re: [spring] IPv6-compressed-routing-header-crh
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Dear Ron,

*> Furthermore, we should engineer for future requirements.  *

Well let's see if we can meet current requirements first.

Imagine that I have a trusted overlay domain over non trusted and non SR
aware IPv6 underlay (likely operated by completely different team of
engineers).

My POPs are addressed from PA space I am attached to (for example my POPs
are virtual computes in various cloud providers) and I have no freedom to
choose IPv6 prefix to be the same across all such POPs.

That effectively means that unless I insert full 128 bits to the packet
header I will not be able to perform any segment routing in my existing
network as clearly the base of your proposal relies on the fact that you
have common IPv6 prefix (in your appendix 2001:db8::/64).

Bottom line CRH does not work for this deployment model.

*> Generally speaking, we should design for efficiency.  *

True and there is always the question of the right balance. Let's zoom into
control plane aspect of your proposal.

In your proposal your packet destination addresses MUST not be aggregated
nor summarized for the apparatus to work. That is the same mistake as was
made with MPLS exact match where today many networks is suffering with
1000s of /32s all over the place. Now we are talking about the same or even
greater amount of /128s.

No transit L3 network will allow me to inject those /128s for a very valid
reasons. Consider that my network grows I would see value of ISIS area
abstraction as presented this week in LSR. Well that means that again I
would need to pollute my entire domain with host routes to make use of your
idea.

*Conclusion:*

Yes I would like to significantly reduce packet size too that's why I
proposed solution which can accomplish the goal all in control plane by
proper handing of BGP indirection and recursion: REF:
https://slideplayer.com/slide/12853563/

CRH assuming that the described above properties are not showstoppers for
given deployment saves with say stack of five 32 bit SIDs for most common
576 bytes imix packet size 10% of saving when SID size goes down to 8 bits
the saving are 13%.

IMO we should have proper data plane solution as well as control plane
solution not something in between which works only in specific scenarios
are which again breaks basic IP address aggregation.

Kind regards,
Robert.

PS. But if you choose to go ahead with CRH I would highly advise to make
your CRH SID a variable length.


On Fri, Mar 29, 2019 at 7:02 PM Ron Bonica <rbonica=
40juniper.net@dmarc.ietf.org> wrote:

> Hi Rajiv,
>
> Thanks for these kind words.
>
> Generally speaking, we should design for efficiency.  Furthermore, we
> should engineer for future requirements. For example, in the future,
> service providers may require longer SID lists (5 or more!). We should plan
> for that today.
>
> Likewise, in the future, people may deploy new applications that emit
> short packets. We should also plan for that today.
>
> If we don't plan for future requirements, obsolescence will be much closer
> than we expect.
>
>                                                     Ron
>
>
> Juniper Internal
>
> > -----Original Message-----
> > From: spring <spring-bounces@ietf.org> On Behalf Of Rajiv Asati (rajiva)
> > Sent: Thursday, March 28, 2019 11:37 AM
> > To: ipv6@ietf.org
> > Cc: spring@ietf.org
> > Subject: [spring] IPv6-compressed-routing-header-crh
> >
> > Hi Ron,
> >
> > Very Interesting idea that you presented during SPRING session today.
> Seems
> > useful.
> >
> > Two comments/clarification -
> >
> > 1. One of the slides indicated that small packet size on the Internet
> was ~500B
> > and calculated ~10% due to Routing EH overhead accordingly. Of course,
> if we
> > look at mid packet size (800-1000B) or large packet size (1000~1400B),
> then
> > the overhead would be a lot less.
> >
> > We should also look at the % mix of small packets vs mid vs large size to
> > calculate the impact. If mid to large packets were dominant (say, as
> much as
> > >70% given >80% of traffic is video (ABR etc) per the latest VNI studies
> ), then
> > the overhead impact due to non-compressed SID usage on the traffic would
> > be even less over all.
> >
> > 2. Also, what % of savings do we get by using compressed RH vs non-
> > compressed RH ? 24B vs 64B per packet !!
> >
> >
> > Cheers,
> > Rajiv
> >
> > _______________________________________________
> > spring mailing list
> > spring@ietf.org
> > https://urldefense.proofpoint.com/v2/url?u=https-
> > 3A__www.ietf.org_mailman_listinfo_spring&d=DwICAg&c=HAkYuh63rsuhr6
> > Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=Fch9FQ82sir-BoLx84hKuKwl-
> > AWF2EfpHcAwrDThKP8&m=jmZxWm2Aql61pHCtvKteTsWzTqqt883W1s5m4
> > Hg4Fxg&s=Jd6XyAybfJQVqups1svIV2qgpN8t39yQZOjL0HT5UZw&e=
>
> --------------------------------------------------------------------
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> ipv6@ietf.org
> Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
> --------------------------------------------------------------------
>

--00000000000034b46b05854fafb4
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:arial,he=
lvetica,sans-serif;font-size:small">Dear Ron,</div><div class=3D"gmail_defa=
ult" style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br><=
/div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans=
-serif;font-size:small"><b><span style=3D"font-family:Arial,Helvetica,sans-=
serif">&gt; Furthermore, we should engineer for future requirements.</span>=
=C2=A0=C2=A0</b><br></div><div class=3D"gmail_default" style=3D"font-family=
:arial,helvetica,sans-serif;font-size:small"><br></div><div class=3D"gmail_=
default" style=3D"font-family:arial,helvetica,sans-serif;font-size:small">W=
ell let&#39;s see if we can meet current requirements first.=C2=A0</div><di=
v class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;f=
ont-size:small"><br></div><div class=3D"gmail_default" style=3D"font-family=
:arial,helvetica,sans-serif;font-size:small">Imagine that I have a trusted =
overlay domain over non trusted and non SR aware IPv6 underlay (likely oper=
ated by completely different team of engineers).=C2=A0</div><div class=3D"g=
mail_default" style=3D"font-family:arial,helvetica,sans-serif;font-size:sma=
ll"><br></div><div class=3D"gmail_default" style=3D"font-family:arial,helve=
tica,sans-serif;font-size:small">My POPs are addressed from PA space I am a=
ttached to (for example my POPs are virtual computes in various cloud provi=
ders) and I have no freedom to choose IPv6 prefix to be the same across all=
 such POPs.=C2=A0</div><div class=3D"gmail_default" style=3D"font-family:ar=
ial,helvetica,sans-serif;font-size:small"><br></div><div class=3D"gmail_def=
ault" style=3D"font-family:arial,helvetica,sans-serif;font-size:small">That=
 effectively means that unless I insert full 128 bits to the packet header =
I will not be able to perform any segment routing in my existing network as=
 clearly the base of your proposal relies on the fact that you have common =
IPv6 prefix (in your appendix 2001:db8::/64).=C2=A0</div><div class=3D"gmai=
l_default" style=3D"font-family:arial,helvetica,sans-serif;font-size:small"=
><br></div><div class=3D"gmail_default" style=3D"font-family:arial,helvetic=
a,sans-serif;font-size:small">Bottom line CRH does not work for this deploy=
ment model.=C2=A0</div><div class=3D"gmail_default" style=3D"font-family:ar=
ial,helvetica,sans-serif;font-size:small"><br></div><div class=3D"gmail_def=
ault" style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><b><=
span style=3D"font-family:Arial,Helvetica,sans-serif">&gt; Generally speaki=
ng, we should design for efficiency.</span>=C2=A0=C2=A0</b><br></div><div c=
lass=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;font=
-size:small"><br></div><div class=3D"gmail_default" style=3D"font-family:ar=
ial,helvetica,sans-serif;font-size:small">True and there is always the ques=
tion of the right balance. Let&#39;s zoom into control plane aspect of your=
 proposal.=C2=A0</div><div class=3D"gmail_default" style=3D"font-family:ari=
al,helvetica,sans-serif;font-size:small"><br></div><div class=3D"gmail_defa=
ult" style=3D"font-family:arial,helvetica,sans-serif;font-size:small">In yo=
ur proposal your packet destination addresses MUST not be aggregated nor su=
mmarized for the apparatus to work. That is the same mistake as was made wi=
th MPLS exact match where today many networks is suffering with 1000s of /3=
2s all over the place. Now we are talking about the same or even greater am=
ount of /128s.=C2=A0</div><div class=3D"gmail_default" style=3D"font-family=
:arial,helvetica,sans-serif;font-size:small"><br></div><div class=3D"gmail_=
default" style=3D"font-family:arial,helvetica,sans-serif;font-size:small">N=
o transit L3 network will allow me to inject those /128s for a very valid r=
easons. Consider that my network grows I would see value of ISIS area abstr=
action as presented this week in LSR. Well that means that again I would ne=
ed to pollute my entire domain with host routes to make use of your idea.=
=C2=A0</div><div class=3D"gmail_default" style=3D"font-family:arial,helveti=
ca,sans-serif;font-size:small"><br></div><div class=3D"gmail_default" style=
=3D"font-family:arial,helvetica,sans-serif;font-size:small"><b>Conclusion:<=
/b></div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,=
sans-serif;font-size:small"><b><br></b></div><div class=3D"gmail_default" s=
tyle=3D"font-family:arial,helvetica,sans-serif;font-size:small">Yes I would=
 like to significantly reduce packet size too that&#39;s why I proposed sol=
ution which can accomplish the goal all in control plane by proper handing =
of BGP indirection and recursion: REF:=C2=A0<a href=3D"https://slideplayer.=
com/slide/12853563/" style=3D"font-family:Arial,Helvetica,sans-serif">https=
://slideplayer.com/slide/12853563/</a></div><div class=3D"gmail_default" st=
yle=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br></div><d=
iv class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;=
font-size:small">CRH assuming that the described above properties are not s=
howstoppers for given deployment saves with say stack of five 32 bit SIDs f=
or most common 576 bytes imix packet size 10% of saving when SID size goes =
down to 8 bits the saving are 13%.=C2=A0</div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br></div>=
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">IMO we should have proper data plane solution as well as=
 control plane solution not something in between which works only in specif=
ic scenarios are which again breaks basic IP address aggregation.=C2=A0</di=
v><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-se=
rif;font-size:small"><br></div><div class=3D"gmail_default" style=3D"font-f=
amily:arial,helvetica,sans-serif;font-size:small">Kind regards,<br></div><d=
iv class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;=
font-size:small">Robert.</div><div class=3D"gmail_default" style=3D"font-fa=
mily:arial,helvetica,sans-serif;font-size:small"><br></div><div class=3D"gm=
ail_default" style=3D"font-family:arial,helvetica,sans-serif;font-size:smal=
l">PS. But if you choose to go ahead with CRH I would highly advise to make=
 your CRH SID a variable length.=C2=A0</div><div class=3D"gmail_default" st=
yle=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br></div></=
div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On=
 Fri, Mar 29, 2019 at 7:02 PM Ron Bonica &lt;rbonica=3D<a href=3D"mailto:40=
juniper.net@dmarc.ietf.org">40juniper.net@dmarc.ietf.org</a>&gt; wrote:<br>=
</div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;b=
order-left:1px solid rgb(204,204,204);padding-left:1ex">Hi Rajiv,<br>
<br>
Thanks for these kind words. <br>
<br>
Generally speaking, we should design for efficiency.=C2=A0 Furthermore, we =
should engineer for future requirements. For example, in the future, servic=
e providers may require longer SID lists (5 or more!). We should plan for t=
hat today.<br>
<br>
Likewise, in the future, people may deploy new applications that emit short=
 packets. We should also plan for that today.<br>
<br>
If we don&#39;t plan for future requirements, obsolescence will be much clo=
ser than we expect.<br>
<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =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>
<br>
<br>
Juniper Internal<br>
<br>
&gt; -----Original Message-----<br>
&gt; From: spring &lt;<a href=3D"mailto:spring-bounces@ietf.org" target=3D"=
_blank">spring-bounces@ietf.org</a>&gt; On Behalf Of Rajiv Asati (rajiva)<b=
r>
&gt; Sent: Thursday, March 28, 2019 11:37 AM<br>
&gt; To: <a href=3D"mailto:ipv6@ietf.org" target=3D"_blank">ipv6@ietf.org</=
a><br>
&gt; Cc: <a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.o=
rg</a><br>
&gt; Subject: [spring] IPv6-compressed-routing-header-crh<br>
&gt; <br>
&gt; Hi Ron,<br>
&gt; <br>
&gt; Very Interesting idea that you presented during SPRING session today. =
Seems<br>
&gt; useful.<br>
&gt; <br>
&gt; Two comments/clarification -<br>
&gt; <br>
&gt; 1. One of the slides indicated that small packet size on the Internet =
was ~500B<br>
&gt; and calculated ~10% due to Routing EH overhead accordingly. Of course,=
 if we<br>
&gt; look at mid packet size (800-1000B) or large packet size (1000~1400B),=
 then<br>
&gt; the overhead would be a lot less.<br>
&gt; <br>
&gt; We should also look at the % mix of small packets vs mid vs large size=
 to<br>
&gt; calculate the impact. If mid to large packets were dominant (say, as m=
uch as<br>
&gt; &gt;70% given &gt;80% of traffic is video (ABR etc) per the latest VNI=
 studies ), then<br>
&gt; the overhead impact due to non-compressed SID usage on the traffic wou=
ld<br>
&gt; be even less over all.<br>
&gt; <br>
&gt; 2. Also, what % of savings do we get by using compressed RH vs non-<br=
>
&gt; compressed RH ? 24B vs 64B per packet !!<br>
&gt; <br>
&gt; <br>
&gt; Cheers,<br>
&gt; Rajiv<br>
&gt; <br>
&gt; _______________________________________________<br>
&gt; spring mailing list<br>
&gt; <a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</=
a><br>
&gt; <a href=3D"https://urldefense.proofpoint.com/v2/url?u=3Dhttps-" rel=3D=
"noreferrer" target=3D"_blank">https://urldefense.proofpoint.com/v2/url?u=
=3Dhttps-</a><br>
&gt; 3A__www.ietf.org_mailman_listinfo_spring&amp;d=3DDwICAg&amp;c=3DHAkYuh=
63rsuhr6<br>
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&gt; AWF2EfpHcAwrDThKP8&amp;m=3DjmZxWm2Aql61pHCtvKteTsWzTqqt883W1s5m4<br>
&gt; Hg4Fxg&amp;s=3DJd6XyAybfJQVqups1svIV2qgpN8t39yQZOjL0HT5UZw&amp;e=3D<br=
>
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From nobody Sat Mar 30 08:08:09 2019
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From: Mark Smith <markzzzsmith@gmail.com>
Date: Sun, 31 Mar 2019 02:07:30 +1100
Message-ID: <CAO42Z2yKmWub+maw4oVzaEY4HoHVszwOo4FQNCHT0uVkKFNwRw@mail.gmail.com>
To: Robert Raszuk <rraszuk@gmail.com>
Cc: Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>,  "spring@ietf.org" <spring@ietf.org>, "ipv6@ietf.org" <ipv6@ietf.org>,  "Rajiv Asati (rajiva)" <rajiva@cisco.com>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/UDfyZBPVou7uV3utXqmhEGCX_7U>
Subject: Re: [spring] IPv6-compressed-routing-header-crh
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On Sun, 31 Mar 2019 at 00:23, Robert Raszuk <rraszuk@gmail.com> wrote:
>
> Dear Ron,
>
> > Furthermore, we should engineer for future requirements.
>
> Well let's see if we can meet current requirements first.
>
> Imagine that I have a trusted overlay domain over non trusted and non SR =
aware IPv6 underlay (likely operated by completely different team of engine=
ers).
>
> My POPs are addressed from PA space I am attached to (for example my POPs=
 are virtual computes in various cloud providers) and I have no freedom to =
choose IPv6 prefix to be the same across all such POPs.
>
> That effectively means that unless I insert full 128 bits to the packet h=
eader I will not be able to perform any segment routing in my existing netw=
ork as clearly the base of your proposal relies on the fact that you have c=
ommon IPv6 prefix (in your appendix 2001:db8::/64).
>

I can't see that requirement.

These are the steps where the IPv6 DA is determined from the SID.
There is no requirement stated that the IPv6 DAs in the mapping table
must all come from the same /64.

* Search for SID[SL] in the table that maps SID's to IPv6 addresses
and interfaces. If SID[SL] cannot be found in that table, send an ICMP
Parameter Problem, Code 0, message to the Source Address, pointing to
SID[SL], and discard the packet.

* Copy the address associated with SID[SL] to the IPv6 Destination Address.

In the Strict Source Routing example (A.3), the SA and 3 DAs are all
from different /64s.


> Bottom line CRH does not work for this deployment model.
>
> > Generally speaking, we should design for efficiency.
>
> True and there is always the question of the right balance. Let's zoom in=
to control plane aspect of your proposal.
>
> In your proposal your packet destination addresses MUST not be aggregated=
 nor summarized for the apparatus to work. That is the same mistake as was =
made with MPLS exact match where today many networks is suffering with 1000=
s of /32s all over the place. Now we are talking about the same or even gre=
ater amount of /128s.
>
> No transit L3 network will allow me to inject those /128s for a very vali=
d reasons. Consider that my network grows I would see value of ISIS area ab=
straction as presented this week in LSR. Well that means that again I would=
 need to pollute my entire domain with host routes to make use of your idea=
.
>
> Conclusion:
>
> Yes I would like to significantly reduce packet size too that's why I pro=
posed solution which can accomplish the goal all in control plane by proper=
 handing of BGP indirection and recursion: REF: https://slideplayer.com/sli=
de/12853563/
>
> CRH assuming that the described above properties are not showstoppers for=
 given deployment saves with say stack of five 32 bit SIDs for most common =
576 bytes imix packet size 10% of saving when SID size goes down to 8 bits =
the saving are 13%.
>
> IMO we should have proper data plane solution as well as control plane so=
lution not something in between which works only in specific scenarios are =
which again breaks basic IP address aggregation.
>
> Kind regards,
> Robert.
>
> PS. But if you choose to go ahead with CRH I would highly advise to make =
your CRH SID a variable length.
>
>
> On Fri, Mar 29, 2019 at 7:02 PM Ron Bonica <rbonica=3D40juniper.net@dmarc=
.ietf.org> wrote:
>>
>> Hi Rajiv,
>>
>> Thanks for these kind words.
>>
>> Generally speaking, we should design for efficiency.  Furthermore, we sh=
ould engineer for future requirements. For example, in the future, service =
providers may require longer SID lists (5 or more!). We should plan for tha=
t today.
>>
>> Likewise, in the future, people may deploy new applications that emit sh=
ort packets. We should also plan for that today.
>>
>> If we don't plan for future requirements, obsolescence will be much clos=
er than we expect.
>>
>>                                                     Ron
>>
>>
>> Juniper Internal
>>
>> > -----Original Message-----
>> > From: spring <spring-bounces@ietf.org> On Behalf Of Rajiv Asati (rajiv=
a)
>> > Sent: Thursday, March 28, 2019 11:37 AM
>> > To: ipv6@ietf.org
>> > Cc: spring@ietf.org
>> > Subject: [spring] IPv6-compressed-routing-header-crh
>> >
>> > Hi Ron,
>> >
>> > Very Interesting idea that you presented during SPRING session today. =
Seems
>> > useful.
>> >
>> > Two comments/clarification -
>> >
>> > 1. One of the slides indicated that small packet size on the Internet =
was ~500B
>> > and calculated ~10% due to Routing EH overhead accordingly. Of course,=
 if we
>> > look at mid packet size (800-1000B) or large packet size (1000~1400B),=
 then
>> > the overhead would be a lot less.
>> >
>> > We should also look at the % mix of small packets vs mid vs large size=
 to
>> > calculate the impact. If mid to large packets were dominant (say, as m=
uch as
>> > >70% given >80% of traffic is video (ABR etc) per the latest VNI studi=
es ), then
>> > the overhead impact due to non-compressed SID usage on the traffic wou=
ld
>> > be even less over all.
>> >
>> > 2. Also, what % of savings do we get by using compressed RH vs non-
>> > compressed RH ? 24B vs 64B per packet !!
>> >
>> >
>> > Cheers,
>> > Rajiv
>> >
>> > _______________________________________________
>> > spring mailing list
>> > spring@ietf.org
>> > https://urldefense.proofpoint.com/v2/url?u=3Dhttps-
>> > 3A__www.ietf.org_mailman_listinfo_spring&d=3DDwICAg&c=3DHAkYuh63rsuhr6
>> > Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=3DFch9FQ82sir-BoLx84hKuKwl-
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>> > Hg4Fxg&s=3DJd6XyAybfJQVqups1svIV2qgpN8t39yQZOjL0HT5UZw&e=3D
>>
>> --------------------------------------------------------------------
>> IETF IPv6 working group mailing list
>> ipv6@ietf.org
>> Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
>> --------------------------------------------------------------------
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring


From nobody Sat Mar 30 08:33:41 2019
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From: Robert Raszuk <rraszuk@gmail.com>
Date: Sat, 30 Mar 2019 16:33:25 +0100
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To: Mark Smith <markzzzsmith@gmail.com>
Cc: Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>,  "spring@ietf.org" <spring@ietf.org>, "ipv6@ietf.org" <ipv6@ietf.org>,  "Rajiv Asati (rajiva)" <rajiva@cisco.com>
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Subject: Re: [spring] IPv6-compressed-routing-header-crh
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--000000000000c6982605855182bf
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Hi Mark,

1) Can you point me to IGP and BGP extensions which would allow to
propagate such "mapping tables" around ?

2) Is there an agreement that solutions which require additional per SR
path state in both control plane and now in data plane are really something
we should be endorsing here ?

Kind regards,
R.

On Sat, Mar 30, 2019 at 4:07 PM Mark Smith <markzzzsmith@gmail.com> wrote:

> On Sun, 31 Mar 2019 at 00:23, Robert Raszuk <rraszuk@gmail.com> wrote:
> >
> > Dear Ron,
> >
> > > Furthermore, we should engineer for future requirements.
> >
> > Well let's see if we can meet current requirements first.
> >
> > Imagine that I have a trusted overlay domain over non trusted and non SR
> aware IPv6 underlay (likely operated by completely different team of
> engineers).
> >
> > My POPs are addressed from PA space I am attached to (for example my
> POPs are virtual computes in various cloud providers) and I have no freedom
> to choose IPv6 prefix to be the same across all such POPs.
> >
> > That effectively means that unless I insert full 128 bits to the packet
> header I will not be able to perform any segment routing in my existing
> network as clearly the base of your proposal relies on the fact that you
> have common IPv6 prefix (in your appendix 2001:db8::/64).
> >
>
> I can't see that requirement.
>
> These are the steps where the IPv6 DA is determined from the SID.
> There is no requirement stated that the IPv6 DAs in the mapping table
> must all come from the same /64.
>
> * Search for SID[SL] in the table that maps SID's to IPv6 addresses
> and interfaces. If SID[SL] cannot be found in that table, send an ICMP
> Parameter Problem, Code 0, message to the Source Address, pointing to
> SID[SL], and discard the packet.
>
> * Copy the address associated with SID[SL] to the IPv6 Destination Address.
>
> In the Strict Source Routing example (A.3), the SA and 3 DAs are all
> from different /64s.
>
>
> > Bottom line CRH does not work for this deployment model.
> >
> > > Generally speaking, we should design for efficiency.
> >
> > True and there is always the question of the right balance. Let's zoom
> into control plane aspect of your proposal.
> >
> > In your proposal your packet destination addresses MUST not be
> aggregated nor summarized for the apparatus to work. That is the same
> mistake as was made with MPLS exact match where today many networks is
> suffering with 1000s of /32s all over the place. Now we are talking about
> the same or even greater amount of /128s.
> >
> > No transit L3 network will allow me to inject those /128s for a very
> valid reasons. Consider that my network grows I would see value of ISIS
> area abstraction as presented this week in LSR. Well that means that again
> I would need to pollute my entire domain with host routes to make use of
> your idea.
> >
> > Conclusion:
> >
> > Yes I would like to significantly reduce packet size too that's why I
> proposed solution which can accomplish the goal all in control plane by
> proper handing of BGP indirection and recursion: REF:
> https://slideplayer.com/slide/12853563/
> >
> > CRH assuming that the described above properties are not showstoppers
> for given deployment saves with say stack of five 32 bit SIDs for most
> common 576 bytes imix packet size 10% of saving when SID size goes down to
> 8 bits the saving are 13%.
> >
> > IMO we should have proper data plane solution as well as control plane
> solution not something in between which works only in specific scenarios
> are which again breaks basic IP address aggregation.
> >
> > Kind regards,
> > Robert.
> >
> > PS. But if you choose to go ahead with CRH I would highly advise to make
> your CRH SID a variable length.
> >
> >
> > On Fri, Mar 29, 2019 at 7:02 PM Ron Bonica <rbonica=
> 40juniper.net@dmarc.ietf.org> wrote:
> >>
> >> Hi Rajiv,
> >>
> >> Thanks for these kind words.
> >>
> >> Generally speaking, we should design for efficiency.  Furthermore, we
> should engineer for future requirements. For example, in the future,
> service providers may require longer SID lists (5 or more!). We should plan
> for that today.
> >>
> >> Likewise, in the future, people may deploy new applications that emit
> short packets. We should also plan for that today.
> >>
> >> If we don't plan for future requirements, obsolescence will be much
> closer than we expect.
> >>
> >>                                                     Ron
> >>
> >>
> >> Juniper Internal
> >>
> >> > -----Original Message-----
> >> > From: spring <spring-bounces@ietf.org> On Behalf Of Rajiv Asati
> (rajiva)
> >> > Sent: Thursday, March 28, 2019 11:37 AM
> >> > To: ipv6@ietf.org
> >> > Cc: spring@ietf.org
> >> > Subject: [spring] IPv6-compressed-routing-header-crh
> >> >
> >> > Hi Ron,
> >> >
> >> > Very Interesting idea that you presented during SPRING session today.
> Seems
> >> > useful.
> >> >
> >> > Two comments/clarification -
> >> >
> >> > 1. One of the slides indicated that small packet size on the Internet
> was ~500B
> >> > and calculated ~10% due to Routing EH overhead accordingly. Of
> course, if we
> >> > look at mid packet size (800-1000B) or large packet size
> (1000~1400B), then
> >> > the overhead would be a lot less.
> >> >
> >> > We should also look at the % mix of small packets vs mid vs large
> size to
> >> > calculate the impact. If mid to large packets were dominant (say, as
> much as
> >> > >70% given >80% of traffic is video (ABR etc) per the latest VNI
> studies ), then
> >> > the overhead impact due to non-compressed SID usage on the traffic
> would
> >> > be even less over all.
> >> >
> >> > 2. Also, what % of savings do we get by using compressed RH vs non-
> >> > compressed RH ? 24B vs 64B per packet !!
> >> >
> >> >
> >> > Cheers,
> >> > Rajiv
> >> >
> >> > _______________________________________________
> >> > spring mailing list
> >> > spring@ietf.org
> >> > https://urldefense.proofpoint.com/v2/url?u=https-
> >> > 3A__www.ietf.org_mailman_listinfo_spring&d=DwICAg&c=HAkYuh63rsuhr6
> >> > Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=Fch9FQ82sir-BoLx84hKuKwl-
> >> > AWF2EfpHcAwrDThKP8&m=jmZxWm2Aql61pHCtvKteTsWzTqqt883W1s5m4
> >> > Hg4Fxg&s=Jd6XyAybfJQVqups1svIV2qgpN8t39yQZOjL0HT5UZw&e=
> >>
> >> --------------------------------------------------------------------
> >> IETF IPv6 working group mailing list
> >> ipv6@ietf.org
> >> Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
> >> --------------------------------------------------------------------
> >
> > _______________________________________________
> > spring mailing list
> > spring@ietf.org
> > https://www.ietf.org/mailman/listinfo/spring
>

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Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:arial,he=
lvetica,sans-serif;font-size:small">Hi Mark,</div><div class=3D"gmail_defau=
lt" style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br></=
div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-=
serif;font-size:small">1) Can you point me to IGP and BGP extensions which =
would allow to propagate such &quot;mapping tables&quot; around ?</div><div=
 class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;fo=
nt-size:small"><br></div><div class=3D"gmail_default" style=3D"font-family:=
arial,helvetica,sans-serif;font-size:small">2) Is there an agreement that s=
olutions which require additional per SR path state in both control plane a=
nd now in data plane are really something we should be endorsing here ?=C2=
=A0</div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,=
sans-serif;font-size:small"><br></div><div class=3D"gmail_default" style=3D=
"font-family:arial,helvetica,sans-serif;font-size:small">Kind regards,</div=
><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-ser=
if;font-size:small">R.</div></div><br><div class=3D"gmail_quote"><div dir=
=3D"ltr" class=3D"gmail_attr">On Sat, Mar 30, 2019 at 4:07 PM Mark Smith &l=
t;<a href=3D"mailto:markzzzsmith@gmail.com">markzzzsmith@gmail.com</a>&gt; =
wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0=
px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On Sun, 3=
1 Mar 2019 at 00:23, Robert Raszuk &lt;<a href=3D"mailto:rraszuk@gmail.com"=
 target=3D"_blank">rraszuk@gmail.com</a>&gt; wrote:<br>
&gt;<br>
&gt; Dear Ron,<br>
&gt;<br>
&gt; &gt; Furthermore, we should engineer for future requirements.<br>
&gt;<br>
&gt; Well let&#39;s see if we can meet current requirements first.<br>
&gt;<br>
&gt; Imagine that I have a trusted overlay domain over non trusted and non =
SR aware IPv6 underlay (likely operated by completely different team of eng=
ineers).<br>
&gt;<br>
&gt; My POPs are addressed from PA space I am attached to (for example my P=
OPs are virtual computes in various cloud providers) and I have no freedom =
to choose IPv6 prefix to be the same across all such POPs.<br>
&gt;<br>
&gt; That effectively means that unless I insert full 128 bits to the packe=
t header I will not be able to perform any segment routing in my existing n=
etwork as clearly the base of your proposal relies on the fact that you hav=
e common IPv6 prefix (in your appendix 2001:db8::/64).<br>
&gt;<br>
<br>
I can&#39;t see that requirement.<br>
<br>
These are the steps where the IPv6 DA is determined from the SID.<br>
There is no requirement stated that the IPv6 DAs in the mapping table<br>
must all come from the same /64.<br>
<br>
* Search for SID[SL] in the table that maps SID&#39;s to IPv6 addresses<br>
and interfaces. If SID[SL] cannot be found in that table, send an ICMP<br>
Parameter Problem, Code 0, message to the Source Address, pointing to<br>
SID[SL], and discard the packet.<br>
<br>
* Copy the address associated with SID[SL] to the IPv6 Destination Address.=
<br>
<br>
In the Strict Source Routing example (A.3), the SA and 3 DAs are all<br>
from different /64s.<br>
<br>
<br>
&gt; Bottom line CRH does not work for this deployment model.<br>
&gt;<br>
&gt; &gt; Generally speaking, we should design for efficiency.<br>
&gt;<br>
&gt; True and there is always the question of the right balance. Let&#39;s =
zoom into control plane aspect of your proposal.<br>
&gt;<br>
&gt; In your proposal your packet destination addresses MUST not be aggrega=
ted nor summarized for the apparatus to work. That is the same mistake as w=
as made with MPLS exact match where today many networks is suffering with 1=
000s of /32s all over the place. Now we are talking about the same or even =
greater amount of /128s.<br>
&gt;<br>
&gt; No transit L3 network will allow me to inject those /128s for a very v=
alid reasons. Consider that my network grows I would see value of ISIS area=
 abstraction as presented this week in LSR. Well that means that again I wo=
uld need to pollute my entire domain with host routes to make use of your i=
dea.<br>
&gt;<br>
&gt; Conclusion:<br>
&gt;<br>
&gt; Yes I would like to significantly reduce packet size too that&#39;s wh=
y I proposed solution which can accomplish the goal all in control plane by=
 proper handing of BGP indirection and recursion: REF: <a href=3D"https://s=
lideplayer.com/slide/12853563/" rel=3D"noreferrer" target=3D"_blank">https:=
//slideplayer.com/slide/12853563/</a><br>
&gt;<br>
&gt; CRH assuming that the described above properties are not showstoppers =
for given deployment saves with say stack of five 32 bit SIDs for most comm=
on 576 bytes imix packet size 10% of saving when SID size goes down to 8 bi=
ts the saving are 13%.<br>
&gt;<br>
&gt; IMO we should have proper data plane solution as well as control plane=
 solution not something in between which works only in specific scenarios a=
re which again breaks basic IP address aggregation.<br>
&gt;<br>
&gt; Kind regards,<br>
&gt; Robert.<br>
&gt;<br>
&gt; PS. But if you choose to go ahead with CRH I would highly advise to ma=
ke your CRH SID a variable length.<br>
&gt;<br>
&gt;<br>
&gt; On Fri, Mar 29, 2019 at 7:02 PM Ron Bonica &lt;rbonica=3D<a href=3D"ma=
ilto:40juniper.net@dmarc.ietf.org" target=3D"_blank">40juniper.net@dmarc.ie=
tf.org</a>&gt; wrote:<br>
&gt;&gt;<br>
&gt;&gt; Hi Rajiv,<br>
&gt;&gt;<br>
&gt;&gt; Thanks for these kind words.<br>
&gt;&gt;<br>
&gt;&gt; Generally speaking, we should design for efficiency.=C2=A0 Further=
more, we should engineer for future requirements. For example, in the futur=
e, service providers may require longer SID lists (5 or more!). We should p=
lan for that today.<br>
&gt;&gt;<br>
&gt;&gt; Likewise, in the future, people may deploy new applications that e=
mit short packets. We should also plan for that today.<br>
&gt;&gt;<br>
&gt;&gt; If we don&#39;t plan for future requirements, obsolescence will be=
 much closer than we expect.<br>
&gt;&gt;<br>
&gt;&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=A0Ron<br>
&gt;&gt;<br>
&gt;&gt;<br>
&gt;&gt; Juniper Internal<br>
&gt;&gt;<br>
&gt;&gt; &gt; -----Original Message-----<br>
&gt;&gt; &gt; From: spring &lt;<a href=3D"mailto:spring-bounces@ietf.org" t=
arget=3D"_blank">spring-bounces@ietf.org</a>&gt; On Behalf Of Rajiv Asati (=
rajiva)<br>
&gt;&gt; &gt; Sent: Thursday, March 28, 2019 11:37 AM<br>
&gt;&gt; &gt; To: <a href=3D"mailto:ipv6@ietf.org" target=3D"_blank">ipv6@i=
etf.org</a><br>
&gt;&gt; &gt; Cc: <a href=3D"mailto:spring@ietf.org" target=3D"_blank">spri=
ng@ietf.org</a><br>
&gt;&gt; &gt; Subject: [spring] IPv6-compressed-routing-header-crh<br>
&gt;&gt; &gt;<br>
&gt;&gt; &gt; Hi Ron,<br>
&gt;&gt; &gt;<br>
&gt;&gt; &gt; Very Interesting idea that you presented during SPRING sessio=
n today. Seems<br>
&gt;&gt; &gt; useful.<br>
&gt;&gt; &gt;<br>
&gt;&gt; &gt; Two comments/clarification -<br>
&gt;&gt; &gt;<br>
&gt;&gt; &gt; 1. One of the slides indicated that small packet size on the =
Internet was ~500B<br>
&gt;&gt; &gt; and calculated ~10% due to Routing EH overhead accordingly. O=
f course, if we<br>
&gt;&gt; &gt; look at mid packet size (800-1000B) or large packet size (100=
0~1400B), then<br>
&gt;&gt; &gt; the overhead would be a lot less.<br>
&gt;&gt; &gt;<br>
&gt;&gt; &gt; We should also look at the % mix of small packets vs mid vs l=
arge size to<br>
&gt;&gt; &gt; calculate the impact. If mid to large packets were dominant (=
say, as much as<br>
&gt;&gt; &gt; &gt;70% given &gt;80% of traffic is video (ABR etc) per the l=
atest VNI studies ), then<br>
&gt;&gt; &gt; the overhead impact due to non-compressed SID usage on the tr=
affic would<br>
&gt;&gt; &gt; be even less over all.<br>
&gt;&gt; &gt;<br>
&gt;&gt; &gt; 2. Also, what % of savings do we get by using compressed RH v=
s non-<br>
&gt;&gt; &gt; compressed RH ? 24B vs 64B per packet !!<br>
&gt;&gt; &gt;<br>
&gt;&gt; &gt;<br>
&gt;&gt; &gt; Cheers,<br>
&gt;&gt; &gt; Rajiv<br>
&gt;&gt; &gt;<br>
&gt;&gt; &gt; _______________________________________________<br>
&gt;&gt; &gt; spring mailing list<br>
&gt;&gt; &gt; <a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@i=
etf.org</a><br>
&gt;&gt; &gt; <a href=3D"https://urldefense.proofpoint.com/v2/url?u=3Dhttps=
-" rel=3D"noreferrer" target=3D"_blank">https://urldefense.proofpoint.com/v=
2/url?u=3Dhttps-</a><br>
&gt;&gt; &gt; 3A__www.ietf.org_mailman_listinfo_spring&amp;d=3DDwICAg&amp;c=
=3DHAkYuh63rsuhr6<br>
&gt;&gt; &gt; Scbfh0UjBXeMK-ndb3voDTXcWzoCI&amp;r=3DFch9FQ82sir-BoLx84hKuKw=
l-<br>
&gt;&gt; &gt; AWF2EfpHcAwrDThKP8&amp;m=3DjmZxWm2Aql61pHCtvKteTsWzTqqt883W1s=
5m4<br>
&gt;&gt; &gt; Hg4Fxg&amp;s=3DJd6XyAybfJQVqups1svIV2qgpN8t39yQZOjL0HT5UZw&am=
p;e=3D<br>
&gt;&gt;<br>
&gt;&gt; ------------------------------------------------------------------=
--<br>
&gt;&gt; IETF IPv6 working group mailing list<br>
&gt;&gt; <a href=3D"mailto:ipv6@ietf.org" target=3D"_blank">ipv6@ietf.org</=
a><br>
&gt;&gt; Administrative Requests: <a href=3D"https://www.ietf.org/mailman/l=
istinfo/ipv6" rel=3D"noreferrer" target=3D"_blank">https://www.ietf.org/mai=
lman/listinfo/ipv6</a><br>
&gt;&gt; ------------------------------------------------------------------=
--<br>
&gt;<br>
&gt; _______________________________________________<br>
&gt; spring mailing list<br>
&gt; <a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</=
a><br>
&gt; <a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"norefe=
rrer" target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><br=
>
</blockquote></div>

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From: Ron Bonica <rbonica@juniper.net>
To: Robert Raszuk <rraszuk@gmail.com>
CC: "Rajiv Asati (rajiva)" <rajiva@cisco.com>, "ipv6@ietf.org" <ipv6@ietf.org>, "spring@ietf.org" <spring@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/miDANGzy92wjPMxX99XTg3wW8q8>
Subject: Re: [spring] IPv6-compressed-routing-header-crh
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Hi Robert,

Thanks for the review.

There is no requirement that all SIDs come from the same prefix. However, I=
 can see how you might get that impression. In two of the examples, all SID=
s do come from the same prefix. In the next draft version, I will update th=
e examples so that prefixes come from different prefixes.

I have not yet submitted the control plane documents. However, I can assure=
 you that the will be remarkably short and simple. All you have to do is ad=
vertise a capability and a SID to address mapping.

                                                              Ron




Juniper Internal
From: Robert Raszuk <rraszuk@gmail.com>
Sent: Saturday, March 30, 2019 9:23 AM
To: Ron Bonica <rbonica@juniper.net>
Cc: Rajiv Asati (rajiva) <rajiva@cisco.com>; ipv6@ietf.org; spring@ietf.org
Subject: Re: [spring] IPv6-compressed-routing-header-crh

Dear Ron,

> Furthermore, we should engineer for future requirements.

Well let's see if we can meet current requirements first.

Imagine that I have a trusted overlay domain over non trusted and non SR aw=
are IPv6 underlay (likely operated by completely different team of engineer=
s).

My POPs are addressed from PA space I am attached to (for example my POPs a=
re virtual computes in various cloud providers) and I have no freedom to ch=
oose IPv6 prefix to be the same across all such POPs.

That effectively means that unless I insert full 128 bits to the packet hea=
der I will not be able to perform any segment routing in my existing networ=
k as clearly the base of your proposal relies on the fact that you have com=
mon IPv6 prefix (in your appendix 2001:db8::/64).

Bottom line CRH does not work for this deployment model.

> Generally speaking, we should design for efficiency.

True and there is always the question of the right balance. Let's zoom into=
 control plane aspect of your proposal.

In your proposal your packet destination addresses MUST not be aggregated n=
or summarized for the apparatus to work. That is the same mistake as was ma=
de with MPLS exact match where today many networks is suffering with 1000s =
of /32s all over the place. Now we are talking about the same or even great=
er amount of /128s.

No transit L3 network will allow me to inject those /128s for a very valid =
reasons. Consider that my network grows I would see value of ISIS area abst=
raction as presented this week in LSR. Well that means that again I would n=
eed to pollute my entire domain with host routes to make use of your idea.

Conclusion:

Yes I would like to significantly reduce packet size too that's why I propo=
sed solution which can accomplish the goal all in control plane by proper h=
anding of BGP indirection and recursion: REF: https://slideplayer.com/slide=
/12853563/<https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__slideplay=
er.com_slide_12853563_&d=3DDwMFaQ&c=3DHAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTX=
cWzoCI&r=3DFch9FQ82sir-BoLx84hKuKwl-AWF2EfpHcAwrDThKP8&m=3DewuLblkfLjwoO8YK=
40dZe30-7hMWm2NinGDf4UsUpJA&s=3DGOt3LiSwdCnkoijg62t5ij7ZxyrhbAHQ7RQW9E84jhk=
&e=3D>

CRH assuming that the described above properties are not showstoppers for g=
iven deployment saves with say stack of five 32 bit SIDs for most common 57=
6 bytes imix packet size 10% of saving when SID size goes down to 8 bits th=
e saving are 13%.

IMO we should have proper data plane solution as well as control plane solu=
tion not something in between which works only in specific scenarios are wh=
ich again breaks basic IP address aggregation.

Kind regards,
Robert.

PS. But if you choose to go ahead with CRH I would highly advise to make yo=
ur CRH SID a variable length.


On Fri, Mar 29, 2019 at 7:02 PM Ron Bonica <rbonica=3D40juniper.net@dmarc.i=
etf.org<mailto:40juniper.net@dmarc.ietf.org>> wrote:
Hi Rajiv,

Thanks for these kind words.

Generally speaking, we should design for efficiency.  Furthermore, we shoul=
d engineer for future requirements. For example, in the future, service pro=
viders may require longer SID lists (5 or more!). We should plan for that t=
oday.

Likewise, in the future, people may deploy new applications that emit short=
 packets. We should also plan for that today.

If we don't plan for future requirements, obsolescence will be much closer =
than we expect.

                                                    Ron


Juniper Internal

> -----Original Message-----
> From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> On=
 Behalf Of Rajiv Asati (rajiva)
> Sent: Thursday, March 28, 2019 11:37 AM
> To: ipv6@ietf.org<mailto:ipv6@ietf.org>
> Cc: spring@ietf.org<mailto:spring@ietf.org>
> Subject: [spring] IPv6-compressed-routing-header-crh
>
> Hi Ron,
>
> Very Interesting idea that you presented during SPRING session today. See=
ms
> useful.
>
> Two comments/clarification -
>
> 1. One of the slides indicated that small packet size on the Internet was=
 ~500B
> and calculated ~10% due to Routing EH overhead accordingly. Of course, if=
 we
> look at mid packet size (800-1000B) or large packet size (1000~1400B), th=
en
> the overhead would be a lot less.
>
> We should also look at the % mix of small packets vs mid vs large size to
> calculate the impact. If mid to large packets were dominant (say, as much=
 as
> >70% given >80% of traffic is video (ABR etc) per the latest VNI studies =
), then
> the overhead impact due to non-compressed SID usage on the traffic would
> be even less over all.
>
> 2. Also, what % of savings do we get by using compressed RH vs non-
> compressed RH ? 24B vs 64B per packet !!
>
>
> Cheers,
> Rajiv
>
> _______________________________________________
> spring mailing list
> spring@ietf.org<mailto:spring@ietf.org>
> https://urldefense.proofpoint.com/v2/url?u=3Dhttps-
> 3A__www.ietf.org_mailman_listinfo_spring&d=3DDwICAg&c=3DHAkYuh63rsuhr6
> Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=3DFch9FQ82sir-BoLx84hKuKwl-
> AWF2EfpHcAwrDThKP8&m=3DjmZxWm2Aql61pHCtvKteTsWzTqqt883W1s5m4
> Hg4Fxg&s=3DJd6XyAybfJQVqups1svIV2qgpN8t39yQZOjL0HT5UZw&e=3D

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<body lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;color:#1F497D">Hi Ro=
bert,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;color:#1F497D"><o:p>=
&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;color:#1F497D">Thank=
s for the review.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;color:#1F497D"><o:p>=
&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;color:#1F497D">There=
 is no requirement that all SIDs come from the same prefix. However, I can =
see how you might get that impression. In two of the examples, all SIDs do =
come from the same prefix. In the next
 draft version, I will update the examples so that prefixes come from diffe=
rent prefixes.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;color:#1F497D"><o:p>=
&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;color:#1F497D">I hav=
e not yet submitted the control plane documents. However, I can assure you =
that the will be remarkably short and simple. All you have to do is adverti=
se a capability and a SID to address
 mapping. <o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;color:#1F497D"><o:p>=
&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;color:#1F497D">&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; &nbs=
p;&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:14.0pt;color:#1F497D"><o:p>=
&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;color:#1F497D"><o:p>=
&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"msipfootere12104fd" align=3D"center" style=3D"margin:0in;margin=
-bottom:.0001pt;text-align:center">
<span style=3D"font-size:10.0pt;color:#737373">Juniper Internal</span><o:p>=
</o:p></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in =
4.0pt">
<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> Robert Raszuk &lt;rraszuk@gmail.com&gt;=
 <br>
<b>Sent:</b> Saturday, March 30, 2019 9:23 AM<br>
<b>To:</b> Ron Bonica &lt;rbonica@juniper.net&gt;<br>
<b>Cc:</b> Rajiv Asati (rajiva) &lt;rajiva@cisco.com&gt;; ipv6@ietf.org; sp=
ring@ietf.org<br>
<b>Subject:</b> Re: [spring] IPv6-compressed-routing-header-crh<o:p></o:p><=
/p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif">Dear Ron,<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><b><span style=3D"font-size:12.0pt;font-family:&quot=
;Arial&quot;,sans-serif">&gt; Furthermore, we should engineer for future re=
quirements.&nbsp;&nbsp;</span></b><span style=3D"font-size:12.0pt;font-fami=
ly:&quot;Arial&quot;,sans-serif"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif">Well let's see if we can meet current requirements fi=
rst.&nbsp;<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif">Imagine that I have a trusted overlay domain over non=
 trusted and non SR aware IPv6 underlay (likely operated by completely diff=
erent team of engineers).&nbsp;<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif">My POPs are addressed from PA space I am attached to =
(for example my POPs are virtual computes in various cloud providers) and I=
 have no freedom to choose IPv6 prefix to be the
 same across all such POPs.&nbsp;<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif">That effectively means that unless I insert full 128 =
bits to the packet header I will not be able to perform any segment routing=
 in my existing network as clearly the base of
 your proposal relies on the fact that you have common IPv6 prefix (in your=
 appendix 2001:db8::/64).&nbsp;<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif">Bottom line CRH does not work for this deployment mod=
el.&nbsp;<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><b><span style=3D"font-size:12.0pt;font-family:&quot=
;Arial&quot;,sans-serif">&gt; Generally speaking, we should design for effi=
ciency.&nbsp;&nbsp;</span></b><span style=3D"font-size:12.0pt;font-family:&=
quot;Arial&quot;,sans-serif"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif">True and there is always the question of the right ba=
lance. Let's zoom into control plane aspect of your proposal.&nbsp;<o:p></o=
:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif">In your proposal your packet destination addresses MU=
ST not be aggregated nor summarized for the apparatus to work. That is the =
same mistake as was made with MPLS exact match
 where today many networks is suffering with 1000s of /32s all over the pla=
ce. Now we are talking about the same or even greater amount of /128s.&nbsp=
;<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif">No transit L3 network will allow me to inject those /=
128s for a very valid reasons. Consider that my network grows I would see v=
alue of ISIS area abstraction as presented this
 week in LSR. Well that means that again I would need to pollute my entire =
domain with host routes to make use of your idea.&nbsp;<o:p></o:p></span></=
p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><b><span style=3D"font-size:12.0pt;font-family:&quot=
;Arial&quot;,sans-serif">Conclusion:</span></b><span style=3D"font-size:12.=
0pt;font-family:&quot;Arial&quot;,sans-serif"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif">Yes I would like to significantly reduce packet size =
too that's why I proposed solution which can accomplish the goal all in con=
trol plane by proper handing of BGP indirection
 and recursion: REF:&nbsp;<a href=3D"https://urldefense.proofpoint.com/v2/u=
rl?u=3Dhttps-3A__slideplayer.com_slide_12853563_&amp;d=3DDwMFaQ&amp;c=3DHAk=
Yuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&amp;r=3DFch9FQ82sir-BoLx84hKuKwl-A=
WF2EfpHcAwrDThKP8&amp;m=3DewuLblkfLjwoO8YK40dZe30-7hMWm2NinGDf4UsUpJA&amp;s=
=3DGOt3LiSwdCnkoijg62t5ij7ZxyrhbAHQ7RQW9E84jhk&amp;e=3D">https://slideplaye=
r.com/slide/12853563/</a><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif">CRH assuming that the described above properties are =
not showstoppers for given deployment saves with say stack of five 32 bit S=
IDs for most common 576 bytes imix packet size
 10% of saving when SID size goes down to 8 bits the saving are 13%.&nbsp;<=
o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif">IMO we should have proper data plane solution as well=
 as control plane solution not something in between which works only in spe=
cific scenarios are which again breaks basic IP
 address aggregation.&nbsp;<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif">Kind regards,<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif">Robert.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif">PS. But if you choose to go ahead with CRH I would hi=
ghly advise to make your CRH SID a variable length.&nbsp;<o:p></o:p></span>=
</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ar=
ial&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<div>
<p class=3D"MsoNormal">On Fri, Mar 29, 2019 at 7:02 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">
<p class=3D"MsoNormal">Hi Rajiv,<br>
<br>
Thanks for these kind words. <br>
<br>
Generally speaking, we should design for efficiency.&nbsp; Furthermore, we =
should engineer for future requirements. For example, in the future, servic=
e providers may require longer SID lists (5 or more!). We should plan for t=
hat today.<br>
<br>
Likewise, in the future, people may deploy new applications that emit short=
 packets. We should also plan for that today.<br>
<br>
If we don't plan for future requirements, obsolescence will be much closer =
than we expect.<br>
<br>
&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; Ron<br>
<br>
<br>
Juniper Internal<br>
<br>
&gt; -----Original Message-----<br>
&gt; From: spring &lt;<a href=3D"mailto:spring-bounces@ietf.org" target=3D"=
_blank">spring-bounces@ietf.org</a>&gt; On Behalf Of Rajiv Asati (rajiva)<b=
r>
&gt; Sent: Thursday, March 28, 2019 11:37 AM<br>
&gt; To: <a href=3D"mailto:ipv6@ietf.org" target=3D"_blank">ipv6@ietf.org</=
a><br>
&gt; Cc: <a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.o=
rg</a><br>
&gt; Subject: [spring] IPv6-compressed-routing-header-crh<br>
&gt; <br>
&gt; Hi Ron,<br>
&gt; <br>
&gt; Very Interesting idea that you presented during SPRING session today. =
Seems<br>
&gt; useful.<br>
&gt; <br>
&gt; Two comments/clarification -<br>
&gt; <br>
&gt; 1. One of the slides indicated that small packet size on the Internet =
was ~500B<br>
&gt; and calculated ~10% due to Routing EH overhead accordingly. Of course,=
 if we<br>
&gt; look at mid packet size (800-1000B) or large packet size (1000~1400B),=
 then<br>
&gt; the overhead would be a lot less.<br>
&gt; <br>
&gt; We should also look at the % mix of small packets vs mid vs large size=
 to<br>
&gt; calculate the impact. If mid to large packets were dominant (say, as m=
uch as<br>
&gt; &gt;70% given &gt;80% of traffic is video (ABR etc) per the latest VNI=
 studies ), then<br>
&gt; the overhead impact due to non-compressed SID usage on the traffic wou=
ld<br>
&gt; be even less over all.<br>
&gt; <br>
&gt; 2. Also, what % of savings do we get by using compressed RH vs non-<br=
>
&gt; compressed RH ? 24B vs 64B per packet !!<br>
&gt; <br>
&gt; <br>
&gt; Cheers,<br>
&gt; Rajiv<br>
&gt; <br>
&gt; _______________________________________________<br>
&gt; spring mailing list<br>
&gt; <a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</=
a><br>
&gt; <a href=3D"https://urldefense.proofpoint.com/v2/url?u=3Dhttps-" target=
=3D"_blank">https://urldefense.proofpoint.com/v2/url?u=3Dhttps-</a><br>
&gt; 3A__www.ietf.org_mailman_listinfo_spring&amp;d=3DDwICAg&amp;c=3DHAkYuh=
63rsuhr6<br>
&gt; Scbfh0UjBXeMK-ndb3voDTXcWzoCI&amp;r=3DFch9FQ82sir-BoLx84hKuKwl-<br>
&gt; AWF2EfpHcAwrDThKP8&amp;m=3DjmZxWm2Aql61pHCtvKteTsWzTqqt883W1s5m4<br>
&gt; Hg4Fxg&amp;s=3DJd6XyAybfJQVqups1svIV2qgpN8t39yQZOjL0HT5UZw&amp;e=3D<br=
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<br>
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Administrative Requests: <a href=3D"https://urldefense.proofpoint.com/v2/ur=
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From: Ahmed Bashandy <abashandy.ietf@gmail.com>
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Subject: Re: [spring] RTG-DIR Last Call review of draft-ietf-spring-segment-routing-mpls-18
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thanks for the comment

Mirrored SID  in Section 2.5 refers to RFC8402 section 5.1, which AFAIK 
is correct. What link needs to be updated?

Ahmed


On 3/29/19 9:13 PM, Przemyslaw Krol wrote:
> Hi Ahmed,
>
> Cosmetic minor nit:
> 2.5. Incoming Label Collision
> [...]
> both links in the '(Mirrored SID)' section need a cleanup / update
>
> thanks,
> pk
>
>
> On Fri, Mar 29, 2019 at 2:14 AM Ahmed Bashandy 
> <abashandy.ietf@gmail.com <mailto:abashandy.ietf@gmail.com>> wrote:
>
>     Thanks a lot for the review
>
>     I uploaded version 19 of the draft, which, IMO, addresses all your
>     comments
>
>     See the reply "#Ahmed"
>
>     On 3/10/19 9:55 AM, Alexander Vainshtein wrote:
>>
>>     Hello,
>>
>>     I have been selected as the Routing Directorate reviewer for this
>>     draft. The Routing Directorate seeks to review all routing or
>>     routing-related drafts as they pass through IETF last call and
>>     IESG review, and sometimes on special request. The purpose of the
>>     review is to provide assistance to the Routing ADs. For more
>>     information about the Routing Directorate, please see
>>     ​http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir
>>
>>     Although these comments are primarily for the use of the Routing
>>     ADs, it would be helpful if you could consider them along with
>>     any other IETF Last Call comments that you receive, and strive to
>>     resolve them through discussion or by updating the draft.
>>
>>     Document: review of draft-ietf-spring-segment-routing-mpls-18
>>     Reviewer: Alexander (“Sasha”) Vainshtein
>>     Review Date: 10-Mar-19
>>     IETF LC End Date: 07-Mar-2019
>>     Intended Status: Proposed Standard
>>
>>     *Summary:*I have some minor concerns about this document that I
>>     think should be resolved before publication.
>>
>>     *Comments*:
>>
>>     I have done an early RTG-DIR review of the -14 version of the
>>     draft half a year ago, and the issues I’ve raised then have been
>>     resolved in the subsequent versions one way or another).
>>     Therefore this review has been intentionally focused on the
>>     changes done to the draft in the few recent versions.
>>
>>     In my previous review I have noticed that the draft was not easy
>>     reading for me. Since then readability of the draft has been
>>     improved. However, there are still several places in the new text
>>     that are still difficult to parse.
>>
>>     I did not run the nits checker on the draft, so my list of nits
>>     is probably incomplete.
>>
>>     Just as with my earlier review, I send this one also to the MPLS
>>     WG list – and for the same reasons.
>>
>>     I tried to discuss my review privately with the authors, but they
>>     did not respond.
>>
>>     *Major Issues*: No major issues found.
>>
>>     *Minor Issues*:
>>
>>     1.The text in Section 1 states that  “*a network operator SHOULD configure at least one node segment
>>     per routing instance, topology, algorithm*”and continues that  “*An implementation MAY check that an IGP node-SID is not
>>     associated with a prefix that is owned by more than one router
>>     within the same routing domain, If so, it SHOULD NOT use this
>>     Node-SID, MAY use another one if available, and SHOULD log an error*”. This looks somewhat controversial to me because:
>>     a.The check of the Node SID not being owned by more than one
>>     router in the routing domain is defined as purely optional.
>>     According to RFC 2119, implementations that choose to implement
>>     such a check must be able to interoperate with implementations
>>     that do not implement it
>>     b.The recommended handling of the results of this check (fully
>>     aligned with the text in Section 3.2 pf RFC 8402 that prohibits
>>     using prefixes owned by more than one router in the domain as
>>     Node-SODs) strongly suggests that the prefix that is owned by
>>     more than one router in the domain is unusable as the Node SID
>>     I see two possibilities to resolve this controversy: either make
>>     the check in question a “real requirement” (i.e., replace *MAY*with *SHOULD*or even *MUST*), or explain why it is safe enough not to implement such a check
>>     (i.e., how implementations that support this check and
>>     implementations that do not support it can interoperate within a
>>     given routing domain).The first of these options seems to me aligned with Section 3.2
>>     in RFC 8402 that says that “*An IGP Node-SID MUST NOT be
>>     associated with a prefix that is owned by more than one router
>>     within the same routing domain*”.     
>     #Ahmed: I replaced the MAY with SHOULD
>>
>>     2.I have  a problem with the highlighted part of the following
>>     text in Section 2.5:
>>
>>     *An implementation MUST NOT allow the MCCs belonging to the same*
>>
>>     *router to assign the same incoming label to more than one SR
>>     FEC. An*
>>
>>     *implementation that allows such behavior is considered as faulty.***
>>
>>     *Procedures defined in this document equally applies to this case,*
>>
>>     *both for incoming label collision (Section 2.5
>>     <https://tools.ietf.org/html/draft-ietf-spring-segment-routing-mpls-18#section-2.5>)
>>     and the effect on*
>>
>>     *outgoing label programming (Section 2.6
>>     <https://tools.ietf.org/html/draft-ietf-spring-segment-routing-mpls-18#section-2.6>).***
>>
>>     a.The Section in question deals with incoming label collision (in
>>     fact, the text that immediately follows the problematic fragment
>>     states that “*The objective of the following steps is to
>>     deterministically install in the MPLS Incoming Label Map, also
>>     known as label FIB, a single FEC with the incoming label "L1"*”
>>     b.As a consequence, any mention of *outgoing label programming*, looks out of context (even accompanied by a forward reference
>>     to Section 2.6)
>>     c.Section 2.6 covers the impact of incoming label collision on
>>     programming of outgoing labels in quite a generic way. Therefore
>>     I think that the highlighted part of the quoted fragment can be
>>     safely removed (complete with the grammar mistake).
>>     d.I also do not see any value in stating that an implementations
>>     that violates a mandatory requirement of the spec is faulty –
>>     isn’t that self-evident?
>
>     #Ahmed: I removed the highlighted text because I agree with what
>     you said in item (d) that it has no value
>
>
>>     3.The highlighted text in Section 2.8 is not accurate:
>>     *   For Local SIDs, the MCC is responsible for downloading the
>>     correct*
>>     *   label value to FIB. For example, an IGP with SR extensions
>>     [I-D.ietf-*
>>     *   isis-segment-routing-extensions, I-D.ietf-ospf-segment-routing-*
>>     *   extensions] allocates and downloads the MPLS label
>>     corresponding to*
>>     *   an Adj-SID [RFC8402 <https://tools.ietf.org/html/rfc8402>].*
>>     *a.*IGP with SR extensions**may indeed dynamically allocate and download MPLS labels acting
>>     as local Adj-SIDs **
>>     *b.*However, these labels can be allocated by configuration (e.g. as
>>     mentioned in the tie-breaking rules in Section 2.5.1 and in the
>>     example in Section A.2.3 in the draft), in which case IGP with SR
>>     extensions would only responsible for its advertisement and
>>     installation. **
>     #Ahmed: I removed the highlighted word "allocated"
>>     *NITS*:
>>     :**
>>     1.In section 2.5:
>>     a.In the sentence “*Procedures defined in this document equally
>>     applies to this case*” the noun is in plural but the verb is in singular. (If this
>>     sentence is removed as suggested above, this nit disappears)
>>     b.The same problem exists in the sentence “*An incoming label
>>     collision occurs if the SIDs of the set of FECs {FEC1, FEC2,...,
>>     FECk} maps to the same incoming SR MPLS label "L1"*”
>     #Ahmed: The sentence is removed as you suggested
>>
>>     2.In section 2.10.1 the preposition “*to*” between the words
>>     “*according*” and “*MPLS*” is missing in the fragment “*Push the
>>     calculated label according the MPLS label pushing rules specified
>>     in [RFC3032]*”.
>>
>     #Ahmed added the missing "to"
>>
>>     3.Problems with references:
>>
>>     a.As reported by Sergey
>>     <https://mailarchive.ietf.org/arch/msg/spring/C_W3KBcL2AWxmlB7Sp53_PvqbQA>,
>>     there are two occurrences of references to RFC 8042 “OSPF
>>     Two-Part Metric” instead of RFC 8402. Lots of thanks to Sergey
>>     for catching this
>>
>     #Ahmed: Corrected, thanks again
>>
>>     b.Reference to RFC 8174 mistakenly contains a link to  RFC 7274.
>>
>     #Ahmed: Corrected
>>
>>     Hopefully these notes will be useful.
>>
>     #Ahmed: VERY useful
>>
>>     Regards,
>>
>>     Sasha
>>
>>     Office: +972-39266302
>>
>>     Cell:      +972-549266302
>>
>>     Email: Alexander.Vainshtein@ecitele.com
>>     <mailto:Alexander.Vainshtein@ecitele.com>
>>
>>
>>     ___________________________________________________________________________
>>
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>
>
>
> -- 
> Przemyslaw "PK" Krol | 	 Strategic Network Engineer 	ing 
> |pkrol@google.com <mailto:pkrol@google.com> 	
>

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From: Mark Smith <markzzzsmith@gmail.com>
Date: Sun, 31 Mar 2019 13:38:50 +1100
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To: Robert Raszuk <rraszuk@gmail.com>
Cc: Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>, spring@ietf.org,  "ipv6@ietf.org" <ipv6@ietf.org>, "Rajiv Asati (rajiva)" <rajiva@cisco.com>
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Subject: Re: [spring] IPv6-compressed-routing-header-crh
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Hi Robert,

On Sun., 31 Mar. 2019, 02:33 Robert Raszuk, <rraszuk@gmail.com> wrote:

> Hi Mark,
>
> 1) Can you point me to IGP and BGP extensions which would allow to
> propagate such "mapping tables" around ?
>

No, as don't think one specifically exists yet. That can be developed.

There are already similar ones of course, such as those that distribute IP
prefix to MPLS label mapping information.



> 2) Is there an agreement that solutions which require additional per SR
> path state in both control plane and now in data plane are really something
> we should be endorsing here ?
>

I think so.

My understanding of what SR is fundamentally about is to reduce control
plane state and processing. The trade-off for reduced control plane state
and processing is to instead carry and encode most or all of that
information or its semantics as per-packet overhead.

If the per-packet overhead becomes too large and expensive, then pushing
some of that information and processing back into the control plane should
be ok, as long as there is still a beneficial overall reduction in control
plane state and processing.

As MPLS SR SIDs are 20 bits, then rounding up to an octet boundary and a 32
bit alignment, I'd think 32 bit SIDs would be adequate to perform SR in an
IPv6 network.

As 32 bit SIDs are also the same size as IPv4 addresses, that may also
create some opportunities to leverage IPv4 support in existing protocols to
suite carrying and processing 32 bit SIDs with some, possibly slight,
modification. For example, perhaps IPv4 Address Family support in OSPFv3
(RFC 5838) could be somehow leveraged to suit SR.


Regards,
Mark.



> Kind regards,
> R.
>
> On Sat, Mar 30, 2019 at 4:07 PM Mark Smith <markzzzsmith@gmail.com> wrote:
>
>> On Sun, 31 Mar 2019 at 00:23, Robert Raszuk <rraszuk@gmail.com> wrote:
>> >
>> > Dear Ron,
>> >
>> > > Furthermore, we should engineer for future requirements.
>> >
>> > Well let's see if we can meet current requirements first.
>> >
>> > Imagine that I have a trusted overlay domain over non trusted and non
>> SR aware IPv6 underlay (likely operated by completely different team of
>> engineers).
>> >
>> > My POPs are addressed from PA space I am attached to (for example my
>> POPs are virtual computes in various cloud providers) and I have no freedom
>> to choose IPv6 prefix to be the same across all such POPs.
>> >
>> > That effectively means that unless I insert full 128 bits to the packet
>> header I will not be able to perform any segment routing in my existing
>> network as clearly the base of your proposal relies on the fact that you
>> have common IPv6 prefix (in your appendix 2001:db8::/64).
>> >
>>
>> I can't see that requirement.
>>
>> These are the steps where the IPv6 DA is determined from the SID.
>> There is no requirement stated that the IPv6 DAs in the mapping table
>> must all come from the same /64.
>>
>> * Search for SID[SL] in the table that maps SID's to IPv6 addresses
>> and interfaces. If SID[SL] cannot be found in that table, send an ICMP
>> Parameter Problem, Code 0, message to the Source Address, pointing to
>> SID[SL], and discard the packet.
>>
>> * Copy the address associated with SID[SL] to the IPv6 Destination
>> Address.
>>
>> In the Strict Source Routing example (A.3), the SA and 3 DAs are all
>> from different /64s.
>>
>>
>> > Bottom line CRH does not work for this deployment model.
>> >
>> > > Generally speaking, we should design for efficiency.
>> >
>> > True and there is always the question of the right balance. Let's zoom
>> into control plane aspect of your proposal.
>> >
>> > In your proposal your packet destination addresses MUST not be
>> aggregated nor summarized for the apparatus to work. That is the same
>> mistake as was made with MPLS exact match where today many networks is
>> suffering with 1000s of /32s all over the place. Now we are talking about
>> the same or even greater amount of /128s.
>> >
>> > No transit L3 network will allow me to inject those /128s for a very
>> valid reasons. Consider that my network grows I would see value of ISIS
>> area abstraction as presented this week in LSR. Well that means that again
>> I would need to pollute my entire domain with host routes to make use of
>> your idea.
>> >
>> > Conclusion:
>> >
>> > Yes I would like to significantly reduce packet size too that's why I
>> proposed solution which can accomplish the goal all in control plane by
>> proper handing of BGP indirection and recursion: REF:
>> https://slideplayer.com/slide/12853563/
>> >
>> > CRH assuming that the described above properties are not showstoppers
>> for given deployment saves with say stack of five 32 bit SIDs for most
>> common 576 bytes imix packet size 10% of saving when SID size goes down to
>> 8 bits the saving are 13%.
>> >
>> > IMO we should have proper data plane solution as well as control plane
>> solution not something in between which works only in specific scenarios
>> are which again breaks basic IP address aggregation.
>> >
>> > Kind regards,
>> > Robert.
>> >
>> > PS. But if you choose to go ahead with CRH I would highly advise to
>> make your CRH SID a variable length.
>> >
>> >
>> > On Fri, Mar 29, 2019 at 7:02 PM Ron Bonica <rbonica=
>> 40juniper.net@dmarc.ietf.org> wrote:
>> >>
>> >> Hi Rajiv,
>> >>
>> >> Thanks for these kind words.
>> >>
>> >> Generally speaking, we should design for efficiency.  Furthermore, we
>> should engineer for future requirements. For example, in the future,
>> service providers may require longer SID lists (5 or more!). We should plan
>> for that today.
>> >>
>> >> Likewise, in the future, people may deploy new applications that emit
>> short packets. We should also plan for that today.
>> >>
>> >> If we don't plan for future requirements, obsolescence will be much
>> closer than we expect.
>> >>
>> >>                                                     Ron
>> >>
>> >>
>> >> Juniper Internal
>> >>
>> >> > -----Original Message-----
>> >> > From: spring <spring-bounces@ietf.org> On Behalf Of Rajiv Asati
>> (rajiva)
>> >> > Sent: Thursday, March 28, 2019 11:37 AM
>> >> > To: ipv6@ietf.org
>> >> > Cc: spring@ietf.org
>> >> > Subject: [spring] IPv6-compressed-routing-header-crh
>> >> >
>> >> > Hi Ron,
>> >> >
>> >> > Very Interesting idea that you presented during SPRING session
>> today. Seems
>> >> > useful.
>> >> >
>> >> > Two comments/clarification -
>> >> >
>> >> > 1. One of the slides indicated that small packet size on the
>> Internet was ~500B
>> >> > and calculated ~10% due to Routing EH overhead accordingly. Of
>> course, if we
>> >> > look at mid packet size (800-1000B) or large packet size
>> (1000~1400B), then
>> >> > the overhead would be a lot less.
>> >> >
>> >> > We should also look at the % mix of small packets vs mid vs large
>> size to
>> >> > calculate the impact. If mid to large packets were dominant (say, as
>> much as
>> >> > >70% given >80% of traffic is video (ABR etc) per the latest VNI
>> studies ), then
>> >> > the overhead impact due to non-compressed SID usage on the traffic
>> would
>> >> > be even less over all.
>> >> >
>> >> > 2. Also, what % of savings do we get by using compressed RH vs non-
>> >> > compressed RH ? 24B vs 64B per packet !!
>> >> >
>> >> >
>> >> > Cheers,
>> >> > Rajiv
>> >> >
>> >> > _______________________________________________
>> >> > spring mailing list
>> >> > spring@ietf.org
>> >> > https://urldefense.proofpoint.com/v2/url?u=https-
>> >> > 3A__www.ietf.org_mailman_listinfo_spring&d=DwICAg&c=HAkYuh63rsuhr6
>> >> > Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=Fch9FQ82sir-BoLx84hKuKwl-
>> >> > AWF2EfpHcAwrDThKP8&m=jmZxWm2Aql61pHCtvKteTsWzTqqt883W1s5m4
>> >> > Hg4Fxg&s=Jd6XyAybfJQVqups1svIV2qgpN8t39yQZOjL0HT5UZw&e=
>> >>
>> >> --------------------------------------------------------------------
>> >> IETF IPv6 working group mailing list
>> >> ipv6@ietf.org
>> >> Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
>> >> --------------------------------------------------------------------
>> >
>> > _______________________________________________
>> > spring mailing list
>> > spring@ietf.org
>> > https://www.ietf.org/mailman/listinfo/spring
>>
>

--0000000000006a538d05855acf1f
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div dir=3D"auto"><div><br>Hi Robert,<br><div class=3D"gma=
il_quote"><div dir=3D"ltr" class=3D"gmail_attr"><br></div><div dir=3D"ltr" =
class=3D"gmail_attr">On Sun., 31 Mar. 2019, 02:33 Robert Raszuk, &lt;<a hre=
f=3D"mailto:rraszuk@gmail.com" rel=3D"noreferrer" target=3D"_blank">rraszuk=
@gmail.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 dir=
=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,=
sans-serif;font-size:small">Hi Mark,</div><div class=3D"gmail_default" styl=
e=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br></div><div=
 class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;fo=
nt-size:small">1) Can you point me to IGP and BGP extensions which would al=
low to propagate such &quot;mapping tables&quot; around ?</div></div></bloc=
kquote></div></div><div dir=3D"auto"><br></div><div dir=3D"auto">No, as don=
&#39;t think one specifically exists yet. That can be developed.</div><div =
dir=3D"auto"><br></div><div>There are already similar ones of course, such =
as those that distribute IP prefix to MPLS label mapping information.</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"><div dir=3D"ltr"><=
div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif=
;font-size:small"><br></div><div class=3D"gmail_default" style=3D"font-fami=
ly:arial,helvetica,sans-serif;font-size:small">2) Is there an agreement tha=
t solutions which require additional per SR path state in both control plan=
e and now in data plane are really something we should be endorsing here ?=
=C2=A0</div></div></blockquote><div><br></div><div>I think so.</div><div><b=
r></div><div>My understanding of what SR is fundamentally about is to reduc=
e control plane state and processing. The trade-off for reduced control pla=
ne state and processing is to instead carry and encode most or all of that =
information or its semantics as per-packet overhead.</div><div><br></div><d=
iv>If the per-packet overhead becomes too large and expensive, then pushing=
 some of that information and processing back into the control plane should=
 be ok, as long as there is still a beneficial overall reduction in control=
 plane state and processing.</div><div><br></div><div>As MPLS SR SIDs are 2=
0 bits, then rounding up to an octet boundary and a 32 bit alignment, I&#39=
;d think 32 bit SIDs would be adequate to perform SR in an IPv6 network.</d=
iv><div><br></div><div>As 32 bit SIDs are also the same size as IPv4 addres=
ses, that may also create some opportunities to leverage IPv4 support in ex=
isting protocols to suite carrying and processing 32 bit SIDs with some, po=
ssibly slight, modification. For example, perhaps IPv4 Address Family suppo=
rt in OSPFv3 (RFC=C2=A0<span style=3D"color:rgb(0,0,0);font-size:13.3333px"=
>5838) could be somehow leveraged to suit SR.</span></div><div><span style=
=3D"color:rgb(0,0,0);font-size:13.3333px"><br></span></div><div><br></div><=
div><span style=3D"color:rgb(0,0,0);font-size:13.3333px">Regards,</span></d=
iv><div><span style=3D"color:rgb(0,0,0);font-size:13.3333px">Mark.</span></=
div><div><span style=3D"color:rgb(0,0,0);font-size:13.3333px"><br></span></=
div><div><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"><div cla=
ss=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;font-s=
ize:small"><br></div><div class=3D"gmail_default" style=3D"font-family:aria=
l,helvetica,sans-serif;font-size:small">Kind regards,</div><div class=3D"gm=
ail_default" style=3D"font-family:arial,helvetica,sans-serif;font-size:smal=
l">R.</div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"g=
mail_attr">On Sat, Mar 30, 2019 at 4:07 PM Mark Smith &lt;<a href=3D"mailto=
:markzzzsmith@gmail.com" rel=3D"noreferrer noreferrer" target=3D"_blank">ma=
rkzzzsmith@gmail.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quo=
te" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204=
);padding-left:1ex">On Sun, 31 Mar 2019 at 00:23, Robert Raszuk &lt;<a href=
=3D"mailto:rraszuk@gmail.com" rel=3D"noreferrer noreferrer" target=3D"_blan=
k">rraszuk@gmail.com</a>&gt; wrote:<br>
&gt;<br>
&gt; Dear Ron,<br>
&gt;<br>
&gt; &gt; Furthermore, we should engineer for future requirements.<br>
&gt;<br>
&gt; Well let&#39;s see if we can meet current requirements first.<br>
&gt;<br>
&gt; Imagine that I have a trusted overlay domain over non trusted and non =
SR aware IPv6 underlay (likely operated by completely different team of eng=
ineers).<br>
&gt;<br>
&gt; My POPs are addressed from PA space I am attached to (for example my P=
OPs are virtual computes in various cloud providers) and I have no freedom =
to choose IPv6 prefix to be the same across all such POPs.<br>
&gt;<br>
&gt; That effectively means that unless I insert full 128 bits to the packe=
t header I will not be able to perform any segment routing in my existing n=
etwork as clearly the base of your proposal relies on the fact that you hav=
e common IPv6 prefix (in your appendix 2001:db8::/64).<br>
&gt;<br>
<br>
I can&#39;t see that requirement.<br>
<br>
These are the steps where the IPv6 DA is determined from the SID.<br>
There is no requirement stated that the IPv6 DAs in the mapping table<br>
must all come from the same /64.<br>
<br>
* Search for SID[SL] in the table that maps SID&#39;s to IPv6 addresses<br>
and interfaces. If SID[SL] cannot be found in that table, send an ICMP<br>
Parameter Problem, Code 0, message to the Source Address, pointing to<br>
SID[SL], and discard the packet.<br>
<br>
* Copy the address associated with SID[SL] to the IPv6 Destination Address.=
<br>
<br>
In the Strict Source Routing example (A.3), the SA and 3 DAs are all<br>
from different /64s.<br>
<br>
<br>
&gt; Bottom line CRH does not work for this deployment model.<br>
&gt;<br>
&gt; &gt; Generally speaking, we should design for efficiency.<br>
&gt;<br>
&gt; True and there is always the question of the right balance. Let&#39;s =
zoom into control plane aspect of your proposal.<br>
&gt;<br>
&gt; In your proposal your packet destination addresses MUST not be aggrega=
ted nor summarized for the apparatus to work. That is the same mistake as w=
as made with MPLS exact match where today many networks is suffering with 1=
000s of /32s all over the place. Now we are talking about the same or even =
greater amount of /128s.<br>
&gt;<br>
&gt; No transit L3 network will allow me to inject those /128s for a very v=
alid reasons. Consider that my network grows I would see value of ISIS area=
 abstraction as presented this week in LSR. Well that means that again I wo=
uld need to pollute my entire domain with host routes to make use of your i=
dea.<br>
&gt;<br>
&gt; Conclusion:<br>
&gt;<br>
&gt; Yes I would like to significantly reduce packet size too that&#39;s wh=
y I proposed solution which can accomplish the goal all in control plane by=
 proper handing of BGP indirection and recursion: REF: <a href=3D"https://s=
lideplayer.com/slide/12853563/" rel=3D"noreferrer noreferrer noreferrer" ta=
rget=3D"_blank">https://slideplayer.com/slide/12853563/</a><br>
&gt;<br>
&gt; CRH assuming that the described above properties are not showstoppers =
for given deployment saves with say stack of five 32 bit SIDs for most comm=
on 576 bytes imix packet size 10% of saving when SID size goes down to 8 bi=
ts the saving are 13%.<br>
&gt;<br>
&gt; IMO we should have proper data plane solution as well as control plane=
 solution not something in between which works only in specific scenarios a=
re which again breaks basic IP address aggregation.<br>
&gt;<br>
&gt; Kind regards,<br>
&gt; Robert.<br>
&gt;<br>
&gt; PS. But if you choose to go ahead with CRH I would highly advise to ma=
ke your CRH SID a variable length.<br>
&gt;<br>
&gt;<br>
&gt; On Fri, Mar 29, 2019 at 7:02 PM Ron Bonica &lt;rbonica=3D<a href=3D"ma=
ilto:40juniper.net@dmarc.ietf.org" rel=3D"noreferrer noreferrer" target=3D"=
_blank">40juniper.net@dmarc.ietf.org</a>&gt; wrote:<br>
&gt;&gt;<br>
&gt;&gt; Hi Rajiv,<br>
&gt;&gt;<br>
&gt;&gt; Thanks for these kind words.<br>
&gt;&gt;<br>
&gt;&gt; Generally speaking, we should design for efficiency.=C2=A0 Further=
more, we should engineer for future requirements. For example, in the futur=
e, service providers may require longer SID lists (5 or more!). We should p=
lan for that today.<br>
&gt;&gt;<br>
&gt;&gt; Likewise, in the future, people may deploy new applications that e=
mit short packets. We should also plan for that today.<br>
&gt;&gt;<br>
&gt;&gt; If we don&#39;t plan for future requirements, obsolescence will be=
 much closer than we expect.<br>
&gt;&gt;<br>
&gt;&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=A0Ron<br>
&gt;&gt;<br>
&gt;&gt;<br>
&gt;&gt; Juniper Internal<br>
&gt;&gt;<br>
&gt;&gt; &gt; -----Original Message-----<br>
&gt;&gt; &gt; From: spring &lt;<a href=3D"mailto:spring-bounces@ietf.org" r=
el=3D"noreferrer noreferrer" target=3D"_blank">spring-bounces@ietf.org</a>&=
gt; On Behalf Of Rajiv Asati (rajiva)<br>
&gt;&gt; &gt; Sent: Thursday, March 28, 2019 11:37 AM<br>
&gt;&gt; &gt; To: <a href=3D"mailto:ipv6@ietf.org" rel=3D"noreferrer norefe=
rrer" target=3D"_blank">ipv6@ietf.org</a><br>
&gt;&gt; &gt; Cc: <a href=3D"mailto:spring@ietf.org" rel=3D"noreferrer nore=
ferrer" target=3D"_blank">spring@ietf.org</a><br>
&gt;&gt; &gt; Subject: [spring] IPv6-compressed-routing-header-crh<br>
&gt;&gt; &gt;<br>
&gt;&gt; &gt; Hi Ron,<br>
&gt;&gt; &gt;<br>
&gt;&gt; &gt; Very Interesting idea that you presented during SPRING sessio=
n today. Seems<br>
&gt;&gt; &gt; useful.<br>
&gt;&gt; &gt;<br>
&gt;&gt; &gt; Two comments/clarification -<br>
&gt;&gt; &gt;<br>
&gt;&gt; &gt; 1. One of the slides indicated that small packet size on the =
Internet was ~500B<br>
&gt;&gt; &gt; and calculated ~10% due to Routing EH overhead accordingly. O=
f course, if we<br>
&gt;&gt; &gt; look at mid packet size (800-1000B) or large packet size (100=
0~1400B), then<br>
&gt;&gt; &gt; the overhead would be a lot less.<br>
&gt;&gt; &gt;<br>
&gt;&gt; &gt; We should also look at the % mix of small packets vs mid vs l=
arge size to<br>
&gt;&gt; &gt; calculate the impact. If mid to large packets were dominant (=
say, as much as<br>
&gt;&gt; &gt; &gt;70% given &gt;80% of traffic is video (ABR etc) per the l=
atest VNI studies ), then<br>
&gt;&gt; &gt; the overhead impact due to non-compressed SID usage on the tr=
affic would<br>
&gt;&gt; &gt; be even less over all.<br>
&gt;&gt; &gt;<br>
&gt;&gt; &gt; 2. Also, what % of savings do we get by using compressed RH v=
s non-<br>
&gt;&gt; &gt; compressed RH ? 24B vs 64B per packet !!<br>
&gt;&gt; &gt;<br>
&gt;&gt; &gt;<br>
&gt;&gt; &gt; Cheers,<br>
&gt;&gt; &gt; Rajiv<br>
&gt;&gt; &gt;<br>
&gt;&gt; &gt; _______________________________________________<br>
&gt;&gt; &gt; spring mailing list<br>
&gt;&gt; &gt; <a href=3D"mailto:spring@ietf.org" rel=3D"noreferrer noreferr=
er" target=3D"_blank">spring@ietf.org</a><br>
&gt;&gt; &gt; <a href=3D"https://urldefense.proofpoint.com/v2/url?u=3Dhttps=
-" rel=3D"noreferrer noreferrer noreferrer" target=3D"_blank">https://urlde=
fense.proofpoint.com/v2/url?u=3Dhttps-</a><br>
&gt;&gt; &gt; 3A__www.ietf.org_mailman_listinfo_spring&amp;d=3DDwICAg&amp;c=
=3DHAkYuh63rsuhr6<br>
&gt;&gt; &gt; Scbfh0UjBXeMK-ndb3voDTXcWzoCI&amp;r=3DFch9FQ82sir-BoLx84hKuKw=
l-<br>
&gt;&gt; &gt; AWF2EfpHcAwrDThKP8&amp;m=3DjmZxWm2Aql61pHCtvKteTsWzTqqt883W1s=
5m4<br>
&gt;&gt; &gt; Hg4Fxg&amp;s=3DJd6XyAybfJQVqups1svIV2qgpN8t39yQZOjL0HT5UZw&am=
p;e=3D<br>
&gt;&gt;<br>
&gt;&gt; ------------------------------------------------------------------=
--<br>
&gt;&gt; IETF IPv6 working group mailing list<br>
&gt;&gt; <a href=3D"mailto:ipv6@ietf.org" rel=3D"noreferrer noreferrer" tar=
get=3D"_blank">ipv6@ietf.org</a><br>
&gt;&gt; Administrative Requests: <a href=3D"https://www.ietf.org/mailman/l=
istinfo/ipv6" rel=3D"noreferrer noreferrer noreferrer" target=3D"_blank">ht=
tps://www.ietf.org/mailman/listinfo/ipv6</a><br>
&gt;&gt; ------------------------------------------------------------------=
--<br>
&gt;<br>
&gt; _______________________________________________<br>
&gt; spring mailing list<br>
&gt; <a href=3D"mailto:spring@ietf.org" rel=3D"noreferrer noreferrer" targe=
t=3D"_blank">spring@ietf.org</a><br>
&gt; <a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"norefe=
rrer noreferrer noreferrer" target=3D"_blank">https://www.ietf.org/mailman/=
listinfo/spring</a><br>
</blockquote></div>
</blockquote></div></div></div>
</div>

--0000000000006a538d05855acf1f--


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From: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
To: Ahmed Bashandy <abashandy.ietf@gmail.com>
CC: "rtg-dir@ietf.org" <rtg-dir@ietf.org>, "spring@ietf.org" <spring@ietf.org>, "mpls@ietf.org" <mpls@ietf.org>, "draft-ietf-spring-segment-routing-mpls.authors@ietf.org" <draft-ietf-spring-segment-routing-mpls.authors@ietf.org>, Min Ye <amy.yemin@huawei.com>, "rtg-ads@ietf.org" <rtg-ads@ietf.org>
Thread-Topic: RTG-DIR Last Call review of draft-ietf-spring-segment-routing-mpls-18
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Subject: Re: [spring] RTG-DIR Last Call review of draft-ietf-spring-segment-routing-mpls-18
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From: Przemyslaw Krol <pkrol@google.com>
Date: Sun, 31 Mar 2019 10:07:50 +0200
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To: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
Cc: Ahmed Bashandy <abashandy.ietf@gmail.com>, "rtg-dir@ietf.org" <rtg-dir@ietf.org>,  "spring@ietf.org" <spring@ietf.org>, Min Ye <amy.yemin@huawei.com>, "mpls@ietf.org" <mpls@ietf.org>, "rtg-ads@ietf.org" <rtg-ads@ietf.org>,  "draft-ietf-spring-segment-routing-mpls.authors@ietf.org" <draft-ietf-spring-segment-routing-mpls.authors@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/5k1BINIPk-E98ksSZhKo_oHqKas>
Subject: Re: [spring] RTG-DIR Last Call review of draft-ietf-spring-segment-routing-mpls-18
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Mirrored SID  in Section 2.5 refers to RFC8402 section 5.1, which AFAIK is
correct. What link needs to be updated?

[RFC8402, Section 5.1
<https://tools.ietf.org/html/draft-ietf-spring-segment-routing-mpls-19#sect=
ion-5.1>]
-  doesn't point to RFC8402 section 5.1

thanks,

On Sun, Mar 31, 2019 at 6:46 AM Alexander Vainshtein <
Alexander.Vainshtein@ecitele.com> wrote:

> Ahmed,
>
> Lots of thanks for a very encouraging and cooperative response.
>
>
>
> I checked the -19 version with regard to the issues I=E2=80=99ve raised i=
n my
> RTG-DIR Last Call review, and here is the summary status:
>
>
>
> *Issue/Nit raised in review of the -18 version*
>
> *Status in the -19 version*
>
> *Comments*
>
> Check of the prefix advertised as a Node SID being owned by more than one
> router in the domain is OPTIONALR
>
> Resolved
>
> The requirement level for such a check has been changed from MAY to SHOUL=
D
>
> Unnecessary text declaring non-compliant implementations as faulty and
> using forward references
>
> Resolved
>
> Unnecessary text has been removed
>
> Inaccurate statement regarding allocation and advertisement of labels
> representing Adj-SIDs by IGP extensions for SR
>
> Resolved
>
> The corresponding statement does not mention label allocation any more
>
> Nit: Grammar issues (singular vs. plural)
>
> Fixed
>
> In all places I=E2=80=99ve mentioned and then in some other ones
>
> Nit: Reference issues
>
> Fixed
>
>
>
>
>
>
>
> Regards,
>
> Sasha
>
>
>
> Office: +972-39266302
>
> Cell:      +972-549266302
>
> Email:   Alexander.Vainshtein@ecitele.com
>
>
>
> *From:* Ahmed Bashandy <abashandy.ietf@gmail.com>
> *Sent:* Friday, March 29, 2019 4:14 AM
> *To:* Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>;
> rtg-ads@ietf.org
> *Cc:* rtg-dir@ietf.org; spring@ietf.org; mpls@ietf.org;
> draft-ietf-spring-segment-routing-mpls.authors@ietf.org; Min Ye <
> amy.yemin@huawei.com>
> *Subject:* Re: RTG-DIR Last Call review of
> draft-ietf-spring-segment-routing-mpls-18
>
>
>
> Thanks a lot for the review
>
> I uploaded version 19 of the draft, which, IMO, addresses all your commen=
ts
>
> See the reply "#Ahmed"
>
> On 3/10/19 9:55 AM, Alexander Vainshtein wrote:
>
> Hello,
>
> I have been selected as the Routing Directorate reviewer for this draft.
> The Routing Directorate seeks to review all routing or routing-related
> drafts as they pass through IETF last call and IESG review, and sometimes
> on special request. The purpose of the review is to provide assistance to
> the Routing ADs. For more information about the Routing Directorate, plea=
se
> see =E2=80=8Bhttp://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir
>
> Although these comments are primarily for the use of the Routing ADs, it
> would be helpful if you could consider them along with any other IETF Las=
t
> Call comments that you receive, and strive to resolve them through
> discussion or by updating the draft.
>
> Document: review of draft-ietf-spring-segment-routing-mpls-18
> Reviewer: Alexander (=E2=80=9CSasha=E2=80=9D) Vainshtein
> Review Date: 10-Mar-19
> IETF LC End Date: 07-Mar-2019
> Intended Status: Proposed Standard
>
> *Summary:* I have some minor concerns about this document that I think
> should be resolved before publication.
>
> *Comments*:
>
> I have done an early RTG-DIR review of the -14 version of the draft half =
a
> year ago, and the issues I=E2=80=99ve raised then have been resolved in t=
he
> subsequent versions one way or another). Therefore this review has been
> intentionally focused on the changes done to the draft in the few recent
> versions.
>
> In my previous review I have noticed that the draft was not easy reading
> for me. Since then readability of the draft has been improved. However,
> there are still several places in the new text that are still difficult t=
o
> parse.
>
> I did not run the nits checker on the draft, so my list of nits is
> probably incomplete.
>
> Just as with my earlier review, I send this one also to the MPLS WG list =
=E2=80=93
> and for the same reasons.
>
> I tried to discuss my review privately with the authors, but they did not
> respond.
>
> *Major Issues*: No major issues found.
>
> *Minor Issues*:
>
> 1.  The text in Section 1 states that =E2=80=9C*a network operator SHOULD=
 configure at least one node segment per routing instance, topology, algori=
thm*=E2=80=9D and continues that =E2=80=9C*An implementation MAY check that=
 an IGP node-SID is not associated with a prefix that is owned by more than=
 one router within the same routing domain, If so, it SHOULD NOT use this N=
ode-SID, MAY use another one if available, and SHOULD log an error*=E2=80=
=9D. This looks somewhat controversial to me because:
>
> a.  The check of the Node SID not being owned by more than one router in =
the routing domain is defined as purely optional. According to RFC 2119, im=
plementations that choose to implement such a check must be able to interop=
erate with implementations that do not implement it
>
> b.  The recommended handling of the results of this check (fully aligned =
with the text in Section 3.2 pf RFC 8402 that prohibits using prefixes owne=
d by more than one router in the domain as Node-SODs) strongly suggests tha=
t the prefix that is owned by more than one router in the domain is unusabl=
e as the Node SID
>
> I see two possibilities to resolve this controversy: either make the chec=
k in question a =E2=80=9Creal requirement=E2=80=9D (i.e., replace *MAY* wit=
h *SHOULD* or even *MUST*), or explain why it is safe enough not to impleme=
nt such a check (i.e., how implementations that support this check and impl=
ementations that do not support it can interoperate within a given routing =
domain). The first of these options seems to me aligned with Section 3.2 in=
 RFC 8402 that says that =E2=80=9C*An IGP Node-SID MUST NOT be associated w=
ith a prefix that is owned by more than one router within the same routing =
domain*=E2=80=9D.
>
> #Ahmed: I replaced the MAY with SHOULD
>
> 2.       I have  a problem with the highlighted part of the following
> text in Section 2.5:
>
>    *An implementation MUST NOT allow the MCCs belonging to the same*
>
> *   router to assign the same incoming label to more than one SR FEC. An*
>
> *   implementation that allows such behavior is considered as faulty.*
>
> *   Procedures defined in this document equally applies to this case,*
>
> *   both for incoming label collision (Section 2.5
> <https://tools.ietf.org/html/draft-ietf-spring-segment-routing-mpls-18#se=
ction-2.5>)
> and the effect on*
>
> *   outgoing label programming (Section 2.6
> <https://tools.ietf.org/html/draft-ietf-spring-segment-routing-mpls-18#se=
ction-2.6>).*
>
> a.  The Section in question deals with incoming label collision (in fact,=
 the text that immediately follows the problematic fragment states that =E2=
=80=9C*The objective of the following steps is to deterministically install=
 in the MPLS Incoming Label Map, also known as label FIB, a single FEC with=
 the incoming label "L1"*=E2=80=9D
>
> b.  As a consequence, any mention of  *outgoing label programming*, looks=
 out of context (even accompanied by a forward reference to Section 2.6)
>
> c.  Section 2.6 covers the impact of incoming label collision on programm=
ing of outgoing labels in quite a generic way. Therefore I think that the  =
highlighted part of the quoted fragment can be safely removed (complete wit=
h the grammar mistake).
>
> d.  I also do not see any value in stating that an implementations that v=
iolates a mandatory requirement of the spec is faulty =E2=80=93 isn=E2=80=
=99t that self-evident?
>
> #Ahmed: I removed the highlighted text because I agree with what you said
> in item (d) that it has no value
>
>
>
> 3.  The highlighted text in Section 2.8 is not accurate:
>
> *   For Local SIDs, the MCC is responsible for downloading the correct*
>
> *   label value to FIB. For example, an IGP with SR extensions [I-D.ietf-=
*
>
> *   isis-segment-routing-extensions, I-D.ietf-ospf-segment-routing-*
>
> *   extensions] allocates and downloads the MPLS label corresponding to*
>
> *   an Adj-SID [RFC8402 <https://tools.ietf.org/html/rfc8402>].*
>
> a.  IGP with SR extensions may indeed dynamically allocate and download M=
PLS labels acting as local Adj-SIDs
>
> b.  However, these labels can be allocated by configuration (e.g. as ment=
ioned in the tie-breaking rules in Section 2.5.1 and in the example in Sect=
ion A.2.3 in the draft), in which case IGP with SR extensions would only re=
sponsible for its advertisement and installation.
>
> #Ahmed: I removed the highlighted word "allocated"
>
>
>
> *NITS*:
>
>  :
>
> 1.  In section 2.5:
>
> a.  In the sentence =E2=80=9C*Procedures defined in this document equally=
 applies to this case*=E2=80=9D the noun is in plural but the verb is in si=
ngular. (If this sentence is removed as suggested above, this nit disappear=
s)
>
> b.  The same problem exists in the sentence =E2=80=9C*An incoming label c=
ollision occurs if the SIDs of the set of FECs {FEC1, FEC2,..., FECk} maps =
to the same incoming SR MPLS label "L1"*=E2=80=9D
>
> #Ahmed: The sentence is removed as you suggested
>
> 2.       In section 2.10.1 the preposition =E2=80=9C*to*=E2=80=9D between=
 the words =E2=80=9C
> *according*=E2=80=9D and =E2=80=9C*MPLS*=E2=80=9D is missing in the fragm=
ent =E2=80=9C*Push the
> calculated label according the MPLS label pushing rules specified in
> [RFC3032]*=E2=80=9D.
>
> #Ahmed added the missing "to"
>
> 3.       Problems with references:
>
> a.       As reported by Sergey
> <https://mailarchive.ietf.org/arch/msg/spring/C_W3KBcL2AWxmlB7Sp53_PvqbQA=
>,
> there are two occurrences of references to RFC 8042 =E2=80=9COSPF Two-Par=
t Metric=E2=80=9D
> instead of RFC 8402. Lots of thanks to Sergey for catching this
>
> #Ahmed: Corrected, thanks again
>
> b.       Reference to RFC 8174 mistakenly contains a link to  RFC 7274.
>
> #Ahmed: Corrected
>
> Hopefully these notes will be useful.
>
> #Ahmed: VERY useful
>
> Regards,
>
> Sasha
>
>
>
> Office: +972-39266302
>
> Cell:      +972-549266302
>
> Email:   Alexander.Vainshtein@ecitele.com
>
>
>
>
> _________________________________________________________________________=
__
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>


--=20
Przemyslaw "PK" Krol |  Strategic Network Engineer ing | pkrol@google.com

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<div dir=3D"ltr">Mirrored SID=C2=A0 in Section 2.5 refers to RFC8402 sectio=
n 5.1, which AFAIK is correct. What link needs to be updated?=C2=A0<div><br=
></div><div><span style=3D"color:rgb(0,0,0);font-size:13.3333px">[RFC8402, =
</span><a href=3D"https://tools.ietf.org/html/draft-ietf-spring-segment-rou=
ting-mpls-19#section-5.1" style=3D"font-size:13.3333px">Section 5.1</a><spa=
n style=3D"color:rgb(0,0,0);font-size:13.3333px">] -=C2=A0 doesn&#39;t poin=
t to RFC8402 section 5.1</span></div><div><span style=3D"color:rgb(0,0,0);f=
ont-size:13.3333px"><br></span></div><div><span style=3D"color:rgb(0,0,0);f=
ont-size:13.3333px">thanks,</span></div></div><br><div class=3D"gmail_quote=
"><div dir=3D"ltr" class=3D"gmail_attr">On Sun, Mar 31, 2019 at 6:46 AM Ale=
xander Vainshtein &lt;<a href=3D"mailto:Alexander.Vainshtein@ecitele.com">A=
lexander.Vainshtein@ecitele.com</a>&gt; wrote:<br></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 bgcolor=3D"white" lang=3D"EN-US">
<div class=3D"gmail-m_-1303946848385219871WordSection1">
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)">Ahmed,<u></u><u=
></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)">Lots of thanks =
for a very encouraging and cooperative response.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)"><u></u>=C2=A0<u=
></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)">I checked the -=
19 version with regard to the issues I=E2=80=99ve raised in my RTG-DIR Last=
 Call review, and here is the summary status:<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)"><u></u>=C2=A0<u=
></u></span></p>
<table class=3D"gmail-m_-1303946848385219871MsoTableGrid" border=3D"1" cell=
spacing=3D"0" cellpadding=3D"0" style=3D"border-collapse:collapse;border:no=
ne">
<tbody>
<tr>
<td width=3D"311" valign=3D"top" style=3D"width:276.05pt;border:1pt solid w=
indowtext;padding:0cm 5.4pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><b><spa=
n style=3D"color:rgb(31,73,125)">Issue/Nit raised in review of the -18 vers=
ion<u></u><u></u></span></b></p>
</td>
<td width=3D"147" valign=3D"top" style=3D"width:127.55pt;border-top:1pt sol=
id windowtext;border-right:1pt solid windowtext;border-bottom:1pt solid win=
dowtext;border-left:none;padding:0cm 5.4pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><b><spa=
n style=3D"color:rgb(31,73,125)">Status in the -19 version<u></u><u></u></s=
pan></b></p>
</td>
<td width=3D"249" valign=3D"top" style=3D"width:219.7pt;border-top:1pt soli=
d windowtext;border-right:1pt solid windowtext;border-bottom:1pt solid wind=
owtext;border-left:none;padding:0cm 5.4pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><b><spa=
n style=3D"color:rgb(31,73,125)">Comments<u></u><u></u></span></b></p>
</td>
</tr>
<tr>
<td width=3D"311" valign=3D"top" style=3D"width:276.05pt;border-right:1pt s=
olid windowtext;border-bottom:1pt solid windowtext;border-left:1pt solid wi=
ndowtext;border-top:none;padding:0cm 5.4pt">
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)">Check of the pr=
efix advertised as a Node SID being owned by more than one router in the do=
main is OPTIONALR<u></u><u></u></span></p>
</td>
<td width=3D"147" valign=3D"top" style=3D"width:127.55pt;border-top:none;bo=
rder-left:none;border-bottom:1pt solid windowtext;border-right:1pt solid wi=
ndowtext;padding:0cm 5.4pt">
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)">Resolved<u></u>=
<u></u></span></p>
</td>
<td width=3D"249" valign=3D"top" style=3D"width:219.7pt;border-top:none;bor=
der-left:none;border-bottom:1pt solid windowtext;border-right:1pt solid win=
dowtext;padding:0cm 5.4pt">
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)">The requirement=
 level for such a check has been changed from MAY to SHOULD<u></u><u></u></=
span></p>
</td>
</tr>
<tr>
<td width=3D"311" valign=3D"top" style=3D"width:276.05pt;border-right:1pt s=
olid windowtext;border-bottom:1pt solid windowtext;border-left:1pt solid wi=
ndowtext;border-top:none;padding:0cm 5.4pt">
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)">Unnecessary tex=
t declaring non-compliant implementations as faulty and using forward refer=
ences
<u></u><u></u></span></p>
</td>
<td width=3D"147" valign=3D"top" style=3D"width:127.55pt;border-top:none;bo=
rder-left:none;border-bottom:1pt solid windowtext;border-right:1pt solid wi=
ndowtext;padding:0cm 5.4pt">
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)">Resolved<u></u>=
<u></u></span></p>
</td>
<td width=3D"249" valign=3D"top" style=3D"width:219.7pt;border-top:none;bor=
der-left:none;border-bottom:1pt solid windowtext;border-right:1pt solid win=
dowtext;padding:0cm 5.4pt">
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)">Unnecessary tex=
t has been removed<u></u><u></u></span></p>
</td>
</tr>
<tr>
<td width=3D"311" valign=3D"top" style=3D"width:276.05pt;border-right:1pt s=
olid windowtext;border-bottom:1pt solid windowtext;border-left:1pt solid wi=
ndowtext;border-top:none;padding:0cm 5.4pt">
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)">Inaccurate stat=
ement regarding allocation and advertisement of labels representing Adj-SID=
s by IGP extensions for SR<u></u><u></u></span></p>
</td>
<td width=3D"147" valign=3D"top" style=3D"width:127.55pt;border-top:none;bo=
rder-left:none;border-bottom:1pt solid windowtext;border-right:1pt solid wi=
ndowtext;padding:0cm 5.4pt">
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)">Resolved<u></u>=
<u></u></span></p>
</td>
<td width=3D"249" valign=3D"top" style=3D"width:219.7pt;border-top:none;bor=
der-left:none;border-bottom:1pt solid windowtext;border-right:1pt solid win=
dowtext;padding:0cm 5.4pt">
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)">The correspondi=
ng statement does not mention label allocation any more
<u></u><u></u></span></p>
</td>
</tr>
<tr>
<td width=3D"311" valign=3D"top" style=3D"width:276.05pt;border-right:1pt s=
olid windowtext;border-bottom:1pt solid windowtext;border-left:1pt solid wi=
ndowtext;border-top:none;padding:0cm 5.4pt">
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)">Nit: Grammar is=
sues (singular vs. plural)
<u></u><u></u></span></p>
</td>
<td width=3D"147" valign=3D"top" style=3D"width:127.55pt;border-top:none;bo=
rder-left:none;border-bottom:1pt solid windowtext;border-right:1pt solid wi=
ndowtext;padding:0cm 5.4pt">
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)">Fixed<u></u><u>=
</u></span></p>
</td>
<td width=3D"249" valign=3D"top" style=3D"width:219.7pt;border-top:none;bor=
der-left:none;border-bottom:1pt solid windowtext;border-right:1pt solid win=
dowtext;padding:0cm 5.4pt">
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)">In all places I=
=E2=80=99ve mentioned and then in some other ones<u></u><u></u></span></p>
</td>
</tr>
<tr>
<td width=3D"311" valign=3D"top" style=3D"width:276.05pt;border-right:1pt s=
olid windowtext;border-bottom:1pt solid windowtext;border-left:1pt solid wi=
ndowtext;border-top:none;padding:0cm 5.4pt">
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)">Nit: Reference =
issues<u></u><u></u></span></p>
</td>
<td width=3D"147" valign=3D"top" style=3D"width:127.55pt;border-top:none;bo=
rder-left:none;border-bottom:1pt solid windowtext;border-right:1pt solid wi=
ndowtext;padding:0cm 5.4pt">
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)">Fixed<u></u><u>=
</u></span></p>
</td>
<td width=3D"249" valign=3D"top" style=3D"width:219.7pt;border-top:none;bor=
der-left:none;border-bottom:1pt solid windowtext;border-right:1pt solid win=
dowtext;padding:0cm 5.4pt">
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)"><u></u>=C2=A0<u=
></u></span></p>
</td>
</tr>
</tbody>
</table>
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)"><u></u>=C2=A0<u=
></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)"><u></u>=C2=A0<u=
></u></span></p>
<div>
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)">Regards, <u></u=
><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)">Sasha<u></u><u>=
</u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)"><u></u>=C2=A0<u=
></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)">Office: +972-39=
266302<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)">Cell:=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0 +972-549266302<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)">Email:=C2=A0=C2=
=A0 <a href=3D"mailto:Alexander.Vainshtein@ecitele.com" target=3D"_blank">A=
lexander.Vainshtein@ecitele.com</a><u></u><u></u></span></p>
</div>
<p class=3D"MsoNormal"><span style=3D"color:rgb(31,73,125)"><u></u>=C2=A0<u=
></u></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"><b><span style=3D"color:windowtext">From:</span></b>=
<span style=3D"color:windowtext"> Ahmed Bashandy &lt;<a href=3D"mailto:abas=
handy.ietf@gmail.com" target=3D"_blank">abashandy.ietf@gmail.com</a>&gt;
<br>
<b>Sent:</b> Friday, March 29, 2019 4:14 AM<br>
<b>To:</b> Alexander Vainshtein &lt;<a href=3D"mailto:Alexander.Vainshtein@=
ecitele.com" target=3D"_blank">Alexander.Vainshtein@ecitele.com</a>&gt;; <a=
 href=3D"mailto:rtg-ads@ietf.org" target=3D"_blank">rtg-ads@ietf.org</a><br=
>
<b>Cc:</b> <a href=3D"mailto:rtg-dir@ietf.org" target=3D"_blank">rtg-dir@ie=
tf.org</a>; <a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@iet=
f.org</a>; <a href=3D"mailto:mpls@ietf.org" target=3D"_blank">mpls@ietf.org=
</a>; <a href=3D"mailto:draft-ietf-spring-segment-routing-mpls.authors@ietf=
.org" target=3D"_blank">draft-ietf-spring-segment-routing-mpls.authors@ietf=
.org</a>; Min Ye &lt;<a href=3D"mailto:amy.yemin@huawei.com" target=3D"_bla=
nk">amy.yemin@huawei.com</a>&gt;<br>
<b>Subject:</b> Re: RTG-DIR Last Call review of draft-ietf-spring-segment-r=
outing-mpls-18<u></u><u></u></span></p>
</div>
</div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p>Thanks a lot for the review<u></u><u></u></p>
<p>I uploaded version 19 of the draft, which, IMO, addresses all your comme=
nts<u></u><u></u></p>
<p>See the reply &quot;#Ahmed&quot;<u></u><u></u></p>
<div>
<p class=3D"MsoNormal">On 3/10/19 9:55 AM, Alexander Vainshtein wrote:<u></=
u><u></u></p>
</div>
<blockquote style=3D"margin-top:5pt;margin-bottom:5pt">
<p><span style=3D"font-size:10pt;font-family:Verdana,sans-serif">Hello, </s=
pan>
<u></u><u></u></p>
<p><span style=3D"font-size:10pt;font-family:Verdana,sans-serif">I have bee=
n selected as the Routing Directorate reviewer for this draft. The Routing =
Directorate seeks to review all routing or routing-related drafts as they p=
ass through IETF last call and
 IESG review, and sometimes on special request. The purpose of the review i=
s to provide assistance to the Routing ADs. For more information about the =
Routing Directorate, please see
<a href=3D"http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir" target=3D"=
_blank"><span class=3D"gmail-m_-1303946848385219871icon"><span style=3D"fon=
t-family:Arial,sans-serif;color:rgb(187,0,0);text-decoration:none">=E2=80=
=8B</span></span>http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir</a>
</span><u></u><u></u></p>
<p><span style=3D"font-size:10pt;font-family:Verdana,sans-serif">Although t=
hese comments are primarily for the use of the Routing ADs, it would be hel=
pful if you could consider them along with any other IETF Last Call comment=
s that you receive, and strive
 to resolve them through discussion or by updating the draft. </span><u></u=
><u></u></p>
<p><span style=3D"font-size:10pt;font-family:Verdana,sans-serif">Document: =
</span>
<span style=3D"font-family:Calibri,sans-serif;color:rgb(31,73,125)">review =
of draft-ietf-spring-segment-routing-mpls-18</span><span style=3D"font-size=
:10pt;font-family:Verdana,sans-serif"><br>
Reviewer: Alexander (=E2=80=9CSasha=E2=80=9D) Vainshtein<br>
Review Date: 10-Mar-19<br>
IETF LC End Date: 07-Mar-2019<br>
Intended Status: </span><span style=3D"font-size:11.5pt;color:rgb(34,34,34)=
;background:white">Proposed Standard</span><u></u><u></u></p>
<p><strong><span style=3D"font-size:10pt;font-family:Verdana,sans-serif">Su=
mmary:</span></strong><span style=3D"font-size:10pt;font-family:Verdana,san=
s-serif"> I have some minor concerns about this document that I think shoul=
d be resolved before publication.</span><u></u><u></u></p>
<p><b><span style=3D"font-size:10pt;font-family:Verdana,sans-serif">Comment=
s</span></b><span style=3D"font-size:10pt;font-family:Verdana,sans-serif">:
</span><u></u><u></u></p>
<p><span style=3D"font-size:10pt;font-family:Verdana,sans-serif">I have don=
e an early RTG-DIR review of the -14 version of the draft half a year ago, =
and the issues I=E2=80=99ve raised then have been resolved in the subsequen=
t versions one way or another). Therefore
 this review has been intentionally focused on the changes done to the draf=
t in the few recent versions.
</span><u></u><u></u></p>
<p><span style=3D"font-size:10pt;font-family:Verdana,sans-serif">In my prev=
ious review I have noticed that the draft was not easy reading for me. Sinc=
e then readability of the draft has been improved. However, there are still=
 several places in the new text
 that are still difficult to parse. </span><u></u><u></u></p>
<p><span style=3D"font-size:10pt;font-family:Verdana,sans-serif">I did not =
run the nits checker on the draft, so my list of nits is probably incomplet=
e.</span><u></u><u></u></p>
<p><span style=3D"font-size:10pt;font-family:Verdana,sans-serif">Just as wi=
th my earlier review, I send this one also to the MPLS WG list =E2=80=93 an=
d for the same reasons.</span><u></u><u></u></p>
<p><span style=3D"font-size:10pt;font-family:Verdana,sans-serif">I tried to=
 discuss my review privately with the authors, but they did not respond.</s=
pan><u></u><u></u></p>
<p><b><span style=3D"font-size:10pt;font-family:Verdana,sans-serif">Major I=
ssues</span></b><span style=3D"font-size:10pt;font-family:Verdana,sans-seri=
f">: No major issues found.</span><u></u><u></u></p>
<p><b><span style=3D"font-size:10pt;font-family:Verdana,sans-serif">Minor I=
ssues</span></b><span style=3D"font-size:10pt;font-family:Verdana,sans-seri=
f">:
</span><u></u><u></u></p>
<pre style=3D"margin-left:39.75pt"><u></u><span>1.<span style=3D"font:7pt &=
quot;Times New Roman&quot;">=C2=A0 </span></span><u></u><span dir=3D"LTR"><=
/span><span style=3D"font-family:Verdana,sans-serif">The text in Section 1 =
states that</span> =E2=80=9C<b>a network operator SHOULD configure at least=
 one node segment per routing instance, topology, algorithm</b>=E2=80=9D <s=
pan style=3D"font-family:Verdana,sans-serif">and continues that</span> =E2=
=80=9C<b>An implementation MAY check that an IGP node-SID is not associated=
 with a prefix that is owned by more than one router within the same routin=
g domain, If so, it SHOULD NOT use this Node-SID, MAY use another one if av=
ailable, and SHOULD log an error</b><span style=3D"font-family:Verdana,sans=
-serif">=E2=80=9D. This looks somewhat controversial to me because:</span><=
u></u><u></u></pre>
<pre style=3D"margin-left:75.75pt"><u></u><span>a.<span style=3D"font:7pt &=
quot;Times New Roman&quot;">=C2=A0 </span></span><u></u><span dir=3D"LTR"><=
/span><span style=3D"font-family:Verdana,sans-serif">The check of the Node =
SID not being owned by more than one router in the routing domain is define=
d as purely optional. According to RFC 2119, implementations that choose to=
 implement such a check must be able to interoperate with implementations t=
hat do not implement it </span><u></u><u></u></pre>
<pre style=3D"margin-left:75.75pt"><u></u><span>b.<span style=3D"font:7pt &=
quot;Times New Roman&quot;">=C2=A0 </span></span><u></u><span dir=3D"LTR"><=
/span><span style=3D"font-family:Verdana,sans-serif">The recommended handli=
ng of the results of this check (fully aligned with the text in Section 3.2=
 pf RFC 8402 that prohibits using prefixes owned by more than one router in=
 the domain as Node-SODs) strongly suggests that the prefix that is owned b=
y more than one router in the domain is unusable as the Node SID =C2=A0</sp=
an><u></u><u></u></pre>
<pre style=3D"margin-left:39.75pt"><span style=3D"font-family:Verdana,sans-=
serif">I see two possibilities to resolve this controversy: either make the=
 check in question a =E2=80=9Creal requirement=E2=80=9D (i.e., replace </sp=
an><b>MAY</b><span style=3D"font-family:Verdana,sans-serif"> with </span><b=
>SHOULD</b><span style=3D"font-family:Verdana,sans-serif"> or even </span><=
b>MUST</b><span style=3D"font-family:Verdana,sans-serif">), or explain why =
it is safe enough not to implement such a check (i.e., how implementations =
that support this check and implementations that do not support it can inte=
roperate within a given routing domain)</span>. <span style=3D"font-family:=
Verdana,sans-serif">The first of these options seems to me aligned with Sec=
tion 3.2 in RFC 8402 that says that =E2=80=9C</span><b><span style=3D"font-=
size:11pt">An IGP Node-SID MUST NOT be associated with a prefix that is own=
ed by more than one router within the same routing domain</span></b><span s=
tyle=3D"font-family:Verdana,sans-serif">=E2=80=9D. </span>=C2=A0=C2=A0=C2=
=A0<u></u><u></u></pre>
</blockquote>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-family:&quot;Time=
s New Roman&quot;,serif">#Ahmed: I replaced the MAY with SHOULD<br>
<br>
<u></u><u></u></span></p>
<blockquote style=3D"margin-top:5pt;margin-bottom:5pt">
<p class=3D"gmail-m_-1303946848385219871MsoListParagraph" style=3D"margin-l=
eft:39.75pt">
<u></u><span>2.<span style=3D"font:7pt &quot;Times New Roman&quot;">=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span></span><u></u><span dir=3D"LTR"></span>I have=C2=A0 a problem with t=
he <span style=3D"background:yellow">
highlighted</span> part of the following text in Section 2.5:<u></u><u></u>=
</p>
<p class=3D"MsoNormal" style=3D"margin-left:18pt"><span style=3D"font-size:=
10pt;font-family:&quot;Courier New ;color:black&quot;,serif">=C2=A0=C2=A0
</span><b><span style=3D"font-family:&quot;Courier New&quot;,serif">An impl=
ementation MUST NOT allow the MCCs belonging to the same</span></b><u></u><=
u></u></p>
<p class=3D"MsoNormal" style=3D"margin-left:18pt"><b><span style=3D"font-fa=
mily:&quot;Courier New&quot;,serif">=C2=A0=C2=A0 router to assign the same =
incoming label to more than one SR FEC.
<span style=3D"background:yellow">An</span></span></b><u></u><u></u></p>
<p class=3D"MsoNormal" style=3D"margin-left:18pt"><b>=C2=A0=C2=A0 implement=
ation that allows such behavior is considered as faulty.</b><u></u><u></u><=
/p>
<p class=3D"MsoNormal" style=3D"margin-left:18pt"><b><span style=3D"font-fa=
mily:&quot;Courier New&quot;,serif">=C2=A0=C2=A0
<span style=3D"background:yellow">Procedures defined in this document equal=
ly applies to this case,</span></span></b><u></u><u></u></p>
<p class=3D"MsoNormal" style=3D"margin-left:18pt"><b>=C2=A0=C2=A0 both for =
incoming label collision (<a href=3D"https://tools.ietf.org/html/draft-ietf=
-spring-segment-routing-mpls-18#section-2.5" target=3D"_blank"><span style=
=3D"color:windowtext;text-decoration:none">Section 2.5</span></a>)
 and the effect on</b><u></u><u></u></p>
<p class=3D"MsoNormal" style=3D"margin-left:18pt"><b>=C2=A0=C2=A0 outgoing =
label programming (<a href=3D"https://tools.ietf.org/html/draft-ietf-spring=
-segment-routing-mpls-18#section-2.6" target=3D"_blank"><span style=3D"colo=
r:windowtext;text-decoration:none">Section 2.6</span></a>).</b><u></u><u></=
u></p>
<pre style=3D"margin-left:75.75pt"><u></u><span>a.<span style=3D"font:7pt &=
quot;Times New Roman&quot;">=C2=A0 </span></span><u></u><span dir=3D"LTR"><=
/span><span style=3D"font-family:Verdana,sans-serif">The Section in questio=
n deals with incoming label collision (in fact, the text that immediately f=
ollows the problematic fragment states that =E2=80=9C</span><b><span style=
=3D"font-size:11pt">The objective of the following steps is to deterministi=
cally install in the MPLS Incoming Label Map, also known as label FIB, a si=
ngle FEC with the incoming label &quot;L1&quot;</span></b><span style=3D"fo=
nt-family:Verdana,sans-serif">=E2=80=9D </span><u></u><u></u></pre>
<pre style=3D"margin-left:75.75pt"><u></u><span>b.<span style=3D"font:7pt &=
quot;Times New Roman&quot;">=C2=A0 </span></span><u></u><span dir=3D"LTR"><=
/span><span style=3D"font-family:Verdana,sans-serif">As a consequence, any =
mention of=C2=A0 </span><b><span style=3D"font-size:11pt">outgoing label pr=
ogramming</span></b><span style=3D"font-family:Verdana,sans-serif">, looks =
out of context (even accompanied by a forward reference to Section 2.6)</sp=
an><u></u><u></u></pre>
<pre style=3D"margin-left:75.75pt"><u></u><span>c.<span style=3D"font:7pt &=
quot;Times New Roman&quot;">=C2=A0 </span></span><u></u><span dir=3D"LTR"><=
/span><span style=3D"font-family:Verdana,sans-serif">Section 2.6 covers the=
 impact of incoming label collision on programming of outgoing labels in qu=
ite a generic way. Therefore I think that the =C2=A0<span style=3D"backgrou=
nd:yellow">highlighted</span> part of the quoted fragment can be safely rem=
oved (complete with the grammar mistake).</span><u></u><u></u></pre>
<pre style=3D"margin-left:75.75pt"><u></u><span>d.<span style=3D"font:7pt &=
quot;Times New Roman&quot;">=C2=A0 </span></span><u></u><span dir=3D"LTR"><=
/span><span style=3D"font-family:Verdana,sans-serif">I also do not see any =
value in stating that an implementations that violates a mandatory requirem=
ent of the spec is faulty =E2=80=93 isn=E2=80=99t that self-evident?</span>=
<u></u><u></u></pre>
</blockquote>
<p>#Ahmed: I removed the highlighted text because I agree with what you sai=
d in item (d) that it has no value<u></u><u></u></p>
<p><u></u>=C2=A0<u></u></p>
<blockquote style=3D"margin-top:5pt;margin-bottom:5pt">
<pre style=3D"margin-left:39.75pt"><u></u><span>3.<span style=3D"font:7pt &=
quot;Times New Roman&quot;">=C2=A0 </span></span><u></u><span dir=3D"LTR"><=
/span><span style=3D"font-family:Verdana,sans-serif">The <span style=3D"bac=
kground:yellow">highlighted</span> text in Section 2.8 is not accurate:</sp=
an><u></u><u></u></pre>
<pre style=3D"margin-left:21.75pt"><b>=C2=A0=C2=A0 For Local SIDs, the MCC =
is responsible for downloading the correct</b><u></u><u></u></pre>
<pre style=3D"margin-left:21.75pt"><b>=C2=A0=C2=A0 label value to FIB. For =
example, an IGP with SR extensions [I-D.ietf-</b><u></u><u></u></pre>
<pre style=3D"margin-left:21.75pt"><b>=C2=A0=C2=A0 isis-segment-routing-ext=
ensions, I-D.ietf-ospf-segment-routing-</b><u></u><u></u></pre>
<pre style=3D"margin-left:21.75pt"><b>=C2=A0=C2=A0 extensions] <span style=
=3D"background:yellow">allocates</span> and downloads the MPLS label corres=
ponding to</b><u></u><u></u></pre>
<pre style=3D"margin-left:21.75pt"><b>=C2=A0=C2=A0 an Adj-SID [<a href=3D"h=
ttps://tools.ietf.org/html/rfc8402" title=3D"&quot;Segment Routing Architec=
ture&quot;" target=3D"_blank">RFC8402</a>].</b><u></u><u></u></pre>
<pre style=3D"margin-left:75.75pt"><u></u><span>a.<span style=3D"font:7pt &=
quot;Times New Roman&quot;">=C2=A0 </span></span><u></u><span dir=3D"LTR"><=
/span><span style=3D"font-family:Verdana,sans-serif">IGP with SR extensions=
</span><b> </b><span style=3D"font-family:Verdana,sans-serif">may indeed dy=
namically allocate and download MPLS labels acting as local Adj-SIDs </span=
><u></u><u></u></pre>
<pre style=3D"margin-left:75.75pt"><u></u><span>b.<span style=3D"font:7pt &=
quot;Times New Roman&quot;">=C2=A0 </span></span><u></u><span dir=3D"LTR"><=
/span><span style=3D"font-family:Verdana,sans-serif">However, these labels =
can be allocated by configuration (e.g. as mentioned in the tie-breaking ru=
les in Section 2.5.1 and in the example in Section A.2.3 in the draft), in =
which case IGP with SR extensions would only responsible for its advertisem=
ent and installation. </span><u></u><u></u></pre>
</blockquote>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-family:&quot;Time=
s New Roman&quot;,serif">#Ahmed: I removed the highlighted word &quot;alloc=
ated&quot;
<br>
<br>
<u></u><u></u></span></p>
<blockquote style=3D"margin-top:5pt;margin-bottom:5pt">
<pre><span style=3D"font-family:Verdana,sans-serif">=C2=A0</span><u></u><u>=
</u></pre>
<pre><b><span style=3D"font-family:Verdana,sans-serif">NITS</span></b><span=
 style=3D"font-family:Verdana,sans-serif">:</span><u></u><u></u></pre>
<pre><span style=3D"font-family:Verdana,sans-serif"> :</span><u></u><u></u>=
</pre>
<pre style=3D"margin-left:39.75pt"><u></u><span>1.<span style=3D"font:7pt &=
quot;Times New Roman&quot;">=C2=A0 </span></span><u></u><span dir=3D"LTR"><=
/span><span style=3D"font-family:Verdana,sans-serif">In section 2.5:</span>=
<u></u><u></u></pre>
<pre style=3D"margin-left:72pt"><u></u><span>a.<span style=3D"font:7pt &quo=
t;Times New Roman&quot;">=C2=A0 </span></span><u></u><span dir=3D"LTR"></sp=
an><span style=3D"font-family:Verdana,sans-serif">In the sentence =E2=80=9C=
</span><b>Procedures defined in this document equally applies to this case<=
/b><span style=3D"font-family:Verdana,sans-serif">=E2=80=9D the noun is in =
plural but the verb is in singular. (If this sentence is removed as suggest=
ed above, this nit disappears)</span><u></u><u></u></pre>
<pre style=3D"margin-left:72pt"><u></u><span>b.<span style=3D"font:7pt &quo=
t;Times New Roman&quot;">=C2=A0 </span></span><u></u><span dir=3D"LTR"></sp=
an><span style=3D"font-family:Verdana,sans-serif">The same problem exists i=
n the sentence =E2=80=9C</span><b>An incoming label collision occurs if the=
 SIDs of the set of FECs {FEC1, FEC2,..., FECk} maps to the same incoming S=
R MPLS label &quot;L1&quot;</b><span style=3D"font-family:Verdana,sans-seri=
f">=E2=80=9D</span><u></u><u></u></pre>
</blockquote>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-family:&quot;Time=
s New Roman&quot;,serif">#Ahmed: The sentence is removed as you suggested<b=
r>
<br>
<u></u><u></u></span></p>
<blockquote style=3D"margin-top:5pt;margin-bottom:5pt">
<p class=3D"gmail-m_-1303946848385219871MsoListParagraph" style=3D"margin-l=
eft:39.75pt">
<u></u><span>2.<span style=3D"font:7pt &quot;Times New Roman&quot;">=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span></span><u></u><span dir=3D"LTR"></span>In section 2.10.1 the preposi=
tion =E2=80=9C<b><span style=3D"font-family:&quot;Courier New&quot;,serif">=
to</span></b>=E2=80=9D between the words =E2=80=9C<b><span style=3D"font-fa=
mily:&quot;Courier New&quot;,serif">according</span></b>=E2=80=9D and =E2=
=80=9C<b><span style=3D"font-family:&quot;Courier New&quot;,serif">MPLS</sp=
an></b>=E2=80=9D
 is missing in the fragment =E2=80=9C<b><span style=3D"font-family:&quot;Co=
urier New&quot;,serif">Push the calculated label according the MPLS label p=
ushing rules specified in [RFC3032]</span></b>=E2=80=9D.<u></u><u></u></p>
</blockquote>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-family:&quot;Time=
s New Roman&quot;,serif">#Ahmed added the missing &quot;to&quot;<br>
<br>
<u></u><u></u></span></p>
<blockquote style=3D"margin-top:5pt;margin-bottom:5pt">
<p class=3D"gmail-m_-1303946848385219871MsoListParagraph" style=3D"margin-l=
eft:39.75pt">
<u></u><span>3.<span style=3D"font:7pt &quot;Times New Roman&quot;">=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span></span><u></u><span dir=3D"LTR"></span>Problems with references:<u><=
/u><u></u></p>
<p class=3D"gmail-m_-1303946848385219871MsoListParagraph" style=3D"margin-l=
eft:72pt">
<u></u><span>a.<span style=3D"font:7pt &quot;Times New Roman&quot;">=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span></span><u></u><span dir=3D"LTR"></span><a href=3D"https://mailarchiv=
e.ietf.org/arch/msg/spring/C_W3KBcL2AWxmlB7Sp53_PvqbQA" target=3D"_blank">A=
s reported by Sergey</a>, there are two occurrences of references to RFC 80=
42 =E2=80=9COSPF Two-Part Metric=E2=80=9D instead of RFC 8402. Lots
 of thanks to Sergey for catching this<u></u><u></u></p>
</blockquote>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-family:&quot;Time=
s New Roman&quot;,serif">#Ahmed: Corrected, thanks again<br>
<br>
<u></u><u></u></span></p>
<blockquote style=3D"margin-top:5pt;margin-bottom:5pt">
<p class=3D"gmail-m_-1303946848385219871MsoListParagraph" style=3D"margin-l=
eft:72pt">
<u></u><span>b.<span style=3D"font:7pt &quot;Times New Roman&quot;">=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span></span><u></u><span dir=3D"LTR"></span>Reference to RFC 8174 mistake=
nly contains a link to=C2=A0 RFC 7274.<u></u><u></u></p>
</blockquote>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-family:&quot;Time=
s New Roman&quot;,serif">#Ahmed: Corrected<br>
<br>
<u></u><u></u></span></p>
<blockquote style=3D"margin-top:5pt;margin-bottom:5pt">
<p><span style=3D"font-size:10pt;font-family:Verdana,sans-serif">Hopefully =
these notes will be useful.</span><u></u><u></u></p>
</blockquote>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-family:&quot;Time=
s New Roman&quot;,serif">#Ahmed: VERY useful<br>
<br>
<u></u><u></u></span></p>
<blockquote style=3D"margin-top:5pt;margin-bottom:5pt">
<p class=3D"MsoNormal">Regards,<u></u><u></u></p>
<p class=3D"MsoNormal">Sasha<u></u><u></u></p>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
<p class=3D"MsoNormal">Office: +972-39266302<u></u><u></u></p>
<p class=3D"MsoNormal">Cell:=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 +972-549266302<u=
></u><u></u></p>
<p class=3D"MsoNormal">Email:=C2=A0=C2=A0 <a href=3D"mailto:Alexander.Vains=
htein@ecitele.com" target=3D"_blank">Alexander.Vainshtein@ecitele.com</a><u=
></u><u></u></p>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-family:&quot;Time=
s New Roman&quot;,serif"><br clear=3D"all">
___________________________________________________________________________=
<br>
<br>
This e-mail message is intended for the recipient only and contains informa=
tion which is
<br>
CONFIDENTIAL and which may be proprietary to ECI Telecom. If you have recei=
ved this
<br>
transmission in error, please inform us by e-mail, phone or fax, and then d=
elete the original
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___________________________________________________________________________=
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<br>
This e-mail message is intended for the recipient only and contains informa=
tion which is <br>
CONFIDENTIAL and which may be proprietary to ECI Telecom. If you have recei=
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_______________________________________________<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><br clear=3D"all"><div><br></div>-- <br><div dir=3D"ltr"=
 class=3D"gmail_signature"><div dir=3D"ltr"><div><div dir=3D"ltr"><div><div=
 dir=3D"ltr"><div><div dir=3D"ltr"><div><div dir=3D"ltr"><div><div dir=3D"l=
tr"><div><div style=3D"padding-top:10px;margin-top:10px"><table cellspacing=
=3D"0" cellpadding=3D"0" style=3D"color:rgb(0,0,0);font-family:Times;line-h=
eight:normal;font-size:medium"><tbody><tr style=3D"color:rgb(85,85,85);font=
-family:sans-serif;font-size:small"><td nowrap style=3D"border-top:2px soli=
d rgb(213,15,37)">Przemyslaw &quot;PK&quot; Krol |</td><td nowrap style=3D"=
border-top:2px solid rgb(51,105,232)">=C2=A0Strategic Network Engineer</td>=
<td nowrap style=3D"border-top:2px solid rgb(0,153,57)"><span style=3D"line=
-height:19px;white-space:normal"><span style=3D"border-width:2px 0px 0px;bo=
rder-style:solid;border-color:rgb(51,105,232);padding-top:2px;margin-top:2p=
x">ing |</span><span style=3D"border-width:2px 0px 0px;border-style:solid;b=
order-color:rgb(0,153,57);padding-top:2px;margin-top:2px">=C2=A0<a href=3D"=
mailto:pkrol@google.com" target=3D"_blank"><font color=3D"#1155cc">pkrol@go=
ogle.com</font></a>=C2=A0</span></span></td><td nowrap style=3D"border-top:=
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From: Robert Raszuk <robert@raszuk.net>
Date: Sun, 31 Mar 2019 16:39:49 +0200
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--000000000000eaf781058564e01e
Content-Type: text/plain; charset="UTF-8"

Hi Mark,

> As MPLS SR SIDs are 20 bits, then rounding up to an octet boundary and a
32 bit alignment,
> I'd think 32 bit SIDs would be adequate to perform SR in an IPv6 network.
>
> As 32 bit SIDs are also the same size as IPv4 addresses, that may also
create some opportunities to
> leverage IPv4 support in existing protocols to suite carrying and
processing 32 bit SIDs with some, possibly
> slight, modification. For example, perhaps IPv4 Address Family support in
OSPFv3 (RFC 5838) could be
> somehow leveraged to suit SR.


Thank you for describing your understanding of fundamentals of SR.

I think SR while indeed started with the story of "less control plane is
good for you" now clearly has evolved into not only reduction of control
plane but what can be even more important to some users ability to request
specific behavior via programmed functions of network elements on a per
flow basis without actually per flow or per path signalling or state.

Yes for some it may be very useful feature and I am sure some will call it
overload of data plane or . There is no one size fits all.

With that let's observe that till today SR did not require any new mapping
plane to be distributed in control plane and to be inserted into data
plane. This is clearly a precedent.

Furthermore as we see in companion documents all additional network
functionality is being taken away from SRH and is being shifted to
Destination Options .

As far as mapping plane I already pointed out in my Vector Routing proposal
that we have one already it is called BGP. One needs to also observe that
we as industry worked number of years of protocol suite called LISP
allowing not only very good mapping plane, but also data plane integration.
CC-ing lisp authors for their comments. Note also work for integrating SRv6
with LISP which is already is published.

Since you correctly observed that now SID can be 32 bit and that is similar
to the size of IPv4 my fundamental question is why not use something which
already exists instead of defining some sort of new  from scratch ?

It will be perfectly fine to have full proper SRv6 with SRH and LISP or
Vector Routing as an alternative options. I really do not see a room or
need for yet one more mapping plane. What problem does it solve which would
not be already solved elsewhere ?

Kind regards,
Robert


2) Is there an agreement that solutions which require additional per SR
>> path state in both control plane and now in data plane are really something
>> we should be endorsing here ?
>>
>
> I think so.
>
> My understanding of what SR is fundamentally about is to reduce control
> plane state and processing. The trade-off for reduced control plane state
> and processing is to instead carry and encode most or all of that
> information or its semantics as per-packet overhead.
>
> If the per-packet overhead becomes too large and expensive, then pushing
> some of that information and processing back into the control plane should
> be ok, as long as there is still a beneficial overall reduction in control
> plane state and processing.
>
> As MPLS SR SIDs are 20 bits, then rounding up to an octet boundary and a
> 32 bit alignment, I'd think 32 bit SIDs would be adequate to perform SR in
> an IPv6 network.
>
> As 32 bit SIDs are also the same size as IPv4 addresses, that may also
> create some opportunities to leverage IPv4 support in existing protocols to
> suite carrying and processing 32 bit SIDs with some, possibly slight,
> modification. For example, perhaps IPv4 Address Family support in OSPFv3
> (RFC 5838) could be somehow leveraged to suit SR.
>
> Regards,
> Mark.
>

--000000000000eaf781058564e01e
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div dir=3D"ltr"><div dir=3D"ltr">Hi Mark,<div><br></div><=
div><div>&gt; As MPLS SR SIDs are 20 bits, then rounding up to an octet bou=
ndary and a 32 bit alignment,=C2=A0</div><div>&gt; I&#39;d think 32 bit SID=
s would be adequate to perform SR in an IPv6 network.</div><div>&gt;=C2=A0<=
/div><div>&gt; As 32 bit SIDs are also the same size as IPv4 addresses, tha=
t may also create some opportunities to=C2=A0</div><div>&gt; leverage IPv4 =
support in existing protocols to suite carrying and processing 32 bit SIDs =
with some, possibly=C2=A0</div><div>&gt; slight, modification. For example,=
 perhaps IPv4 Address Family support in OSPFv3 (RFC=C2=A0<span style=3D"col=
or:rgb(0,0,0);font-size:13.3333px">5838) could be=C2=A0</span></div><div><s=
pan style=3D"color:rgb(0,0,0);font-size:13.3333px">&gt; somehow leveraged t=
o suit SR.</span></div></div><div><br></div><div><br></div><div>Thank you f=
or describing your understanding of fundamentals of SR.=C2=A0</div><div><br=
></div><div>I think SR while indeed started with the story of &quot;less co=
ntrol plane is good for you&quot; now clearly has evolved into not only red=
uction of control plane but what can be even more important to some users a=
bility to request specific behavior via programmed functions of network ele=
ments on a per flow basis without actually per flow or per path signalling =
or state.=C2=A0</div><div><br></div><div>Yes for some it may be very useful=
 feature and I am sure some will call it overload of data plane or . There =
is no one size fits all.=C2=A0</div><div><br></div><div>With that let&#39;s=
 observe that till today SR did not require any new mapping plane to be dis=
tributed in control plane and to be inserted into data plane. This is clear=
ly a precedent.</div><div><br></div><div>Furthermore as we see in companion=
 documents all additional network functionality is being taken away from SR=
H and is being shifted to Destination Options .=C2=A0</div><div><br></div><=
div>As far as mapping plane I already pointed out in my Vector Routing prop=
osal that we have one already it is called BGP. One needs to also observe t=
hat we as industry worked number of years of protocol suite called LISP all=
owing not only very good mapping plane, but also data plane integration. CC=
-ing lisp authors for their comments. Note also work for integrating SRv6 w=
ith LISP which is already is published.=C2=A0</div><div><br></div><div>Sinc=
e you correctly observed that now SID can be 32 bit and that is similar to =
the size of IPv4 my fundamental question is why not use something which alr=
eady exists instead of defining some sort of new=C2=A0 from scratch ?=C2=A0=
</div><div><br></div><div>It will be perfectly fine to have full proper SRv=
6 with SRH and LISP or Vector Routing as an alternative options. I really d=
o not see a room or need for yet one more mapping plane. What problem does =
it solve which would not be already solved elsewhere ?=C2=A0</div><div><br>=
</div><div>Kind regards,</div><div>Robert</div><div><br></div><div><br></di=
v></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 dir=3D"auto"><div dir=3D"auto"><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 style=3D"font-family:arial,helvetica,sans-serif;font-size:sma=
ll">2) Is there an agreement that solutions which require additional per SR=
 path state in both control plane and now in data plane are really somethin=
g we should be endorsing here ?=C2=A0<br></div></div></blockquote><div><br>=
</div><div>I think so.</div><div><br></div><div>My understanding of what SR=
 is fundamentally about is to reduce control plane state and processing. Th=
e trade-off for reduced control plane state and processing is to instead ca=
rry and encode most or all of that information or its semantics as per-pack=
et overhead.</div><div><br></div><div>If the per-packet overhead becomes to=
o large and expensive, then pushing some of that information and processing=
 back into the control plane should be ok, as long as there is still a bene=
ficial overall reduction in control plane state and processing.</div><div><=
br></div><div>As MPLS SR SIDs are 20 bits, then rounding up to an octet bou=
ndary and a 32 bit alignment, I&#39;d think 32 bit SIDs would be adequate t=
o perform SR in an IPv6 network.</div><div><br></div><div>As 32 bit SIDs ar=
e also the same size as IPv4 addresses, that may also create some opportuni=
ties to leverage IPv4 support in existing protocols to suite carrying and p=
rocessing 32 bit SIDs with some, possibly slight, modification. For example=
, perhaps IPv4 Address Family support in OSPFv3 (RFC=C2=A0<span style=3D"co=
lor:rgb(0,0,0);font-size:13.3333px">5838) could be somehow leveraged to sui=
t SR.</span></div><div><br></div><div><span style=3D"color:rgb(0,0,0);font-=
size:13.3333px">Regards,</span></div><div><span style=3D"color:rgb(0,0,0);f=
ont-size:13.3333px">Mark.</span></div></div></div></div></div>
</blockquote></div></div></div>

--000000000000eaf781058564e01e--


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From: Dino Farinacci <farinacci@gmail.com>
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Date: Sun, 31 Mar 2019 14:38:49 -0700
Cc: Mark Smith <markzzzsmith@gmail.com>, Robert Raszuk <rraszuk@gmail.com>, SPRING WG <spring@ietf.org>, "ipv6@ietf.org" <ipv6@ietf.org>, lisp@ietf.org
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Subject: Re: [spring] IPv6-compressed-routing-header-crh
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> As far as mapping plane I already pointed out in my Vector Routing =
proposal that we have one already it is called BGP. One needs to also =
observe that we as industry worked number of years of protocol suite =
called LISP allowing not only very good mapping plane, but also data =
plane integration. CC-ing lisp authors for their comments. Note also =
work for integrating SRv6 with LISP which is already is published.=20

The main motivationn to have EID-to-SRH mappings in the LISP mapping =
system is so you can run a LISP overlay on top of an underlay that =
supports SR. If you want the paths between LISP RLOCs to be =E2=80=9Cunder=
lay engineered=E2=80=9D, then the elements of the SRH header can be part =
of the RLOCs LISP selects.=20

And when you do underlay path optimization, the new SRHs can be =
registered dynamically to the mapping system.

> Since you correctly observed that now SID can be 32 bit and that is =
similar to the size of IPv4 my fundamental question is why not use =
something which already exists instead of defining some sort of new  =
from scratch ?=20
>=20
> It will be perfectly fine to have full proper SRv6 with SRH and LISP =
or Vector Routing as an alternative options. I really do not see a room =
or need for yet one more mapping plane. What problem does it solve which =
would not be already solved elsewhere ?=20

In the LISP mapping system I run, I was able to simulate (did not =
implement referenced draft above), an EID-to-SRH mapping by simply =
having an IPv6 EID map to an RLOC-set that used ELPs (Explicit Locator =
Paths - where if the ELP is (A,B,C) it means A encaps to B, B encaps to =
C), but rather than doing the encapsulation we take the (A,B,C) inserted =
into one packet as an SRH.
=20
The point of the exercise was to show the SR authors that the LISP =
mapping system was a control-plane they could use and depend on (and =
ready to go).

Dino


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From: Rajesh M <mrajesh@juniper.net>
To: "huzhibo@huawei.com" <huzhibo@huawei.com>, "Huaimo.chen@huawei.com" <Huaimo.chen@huawei.com>, "baggio.wupeng@huawei.com" <baggio.wupeng@huawei.com>
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Subject: [spring] draft-hu-rtgwg-srv6-egress-protection-00
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Hi All,

Egress protection can be achieved using Anycast address, why this new solut=
ion is required ?

Thanks
Rajesh




Juniper Internal

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<p class=3D"MsoNormal">Hi All,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Egress protection can be achieved using Anycast addr=
ess, why this new solution is required ?<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">Rajesh<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>
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