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From: Andy Smith via Datatracker <noreply@ietf.org>
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Date: Tue, 01 Feb 2022 08:34:04 -0800
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Subject: [RTG-DIR] Rtgdir last call review of draft-ietf-lsr-ospf-bfd-strict-mode-04
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Reviewer: Andy Smith
Review result: Ready

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: draft-ietf-lsr-ospf-bfd-strict-mode-04
Reviewer: Andy Smith
Review Date: 1 Feb 2022
IETF LC End Date:
Intended Status:

Summary:

No issues found. This document is ready for publication.

Comments:

This is a novel idea and the description of it is well written.   The reader
can understand the background and motivation as to the benefits of an OSPF
environment with BFD enabled as a fundamental, required option.

Thanks for the opportunity to review this draft.

Major Issues:

No major issues found.

Minor Issues:

No minor issues found.




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From: "Bocci, Matthew (Nokia - GB)" <matthew.bocci@nokia.com>
To: Ketan Talaulikar <ketant.ietf@gmail.com>
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Subject: Re: [RTG-DIR] RtgDir Last Call review: draft-ietf-spring-segment-routing-policy-14
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--_000_VI1PR0701MB6991965C22626EAC6357478FEB279VI1PR0701MB6991_
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Hi Ketan

Thanks for your quick response.

Matthew

From: Ketan Talaulikar <ketant.ietf@gmail.com>
Date: Saturday, 29 January 2022 at 05:33
To: Bocci, Matthew (Nokia - GB) <matthew.bocci@nokia.com>
Cc: <rtg-ads@ietf.org>, rtg-dir@ietf.org <rtg-dir@ietf.org>, spring@ietf.or=
g <spring@ietf.org>, last-call@ietf.org <last-call@ietf.org>, draft-ietf-sp=
ring-segment-routing-policy.all@ietf.org <draft-ietf-spring-segment-routing=
-policy.all@ietf.org>
Subject: Re: RtgDir Last Call review: draft-ietf-spring-segment-routing-pol=
icy-14
Hi Matthew,

Thanks for your detailed review and please find responses inline below.

Also, we've posted an updated version to address your comments. Request you=
 to please check and let us know your feedback.
https://datatracker.ietf.org/doc/html/draft-ietf-spring-segment-routing-pol=
icy-16


MB> Thanks. This looks good to me. See below for some additional responses.

On Fri, Jan 28, 2022 at 5:21 PM Bocci, Matthew (Nokia - GB) <matthew.bocci@=
nokia.com<mailto:matthew.bocci@nokia.com>> 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: draft-ietf-spring-segment-routing-policy-14
Reviewer: Matthew Bocci
Review Date: 28 January 2022
Intended Status: Standards Track

Summary:

In general, this is a well written document. Thank you.

However, I have some minor concerns about this
document that I think should be resolved before publication. This mostly re=
volve around
the clarity of the document and the use (or lack thereof) of RFC2119 langua=
ge.

Comments:

Major Issues: No major issues found

Minor Issues:

1) This is a standards track document, but in general I found that clear sp=
ecification language
is missing. For example, in section 2.3: "A headend may be.." Should this b=
e "A headend MAY be..."?
There are many other cases like this where MUST/SHOULD/MAY would be better =
used rather than
'is' or 'can'.

KT> Ack. Fixed in some places and please let us know if we've missed any.


2) The references to control planes for provisioning and maintaining SR Pol=
icies are only
informational, but they are referred to in a manner in the text that I read=
 as normative
(although the language is not always clear). For example, in section 2.5: "=
When signaling
is via PCEP..." and then the paragraph refers to an informative reference t=
o the
PCE draft for the SR policy control plane. Given that this is a standards t=
rack architecture
document, it would be much better to be clear about what the normative part=
s of the
architecture are. If these parts are not normative (for example even if I u=
se BGP it is not
mandatory to use it according to a particular specification) then please be=
 explicit
and use 'MAY' or 'SHOULD'.

KT> Given that this is an architecture document, it describes the architect=
ure and not really the protocol mechanisms. This is in line with other SPRI=
NG documents. The normative language for the BGP mechanism is in the IDR do=
cument. The informative references, in this document, to those protocol mec=
hanisms are only to give a better reference/info to the reader.

 MB> I agree you have followed the precedent of the SR architecture (RFC840=
2), so I am OK with that.

3) Section 2.2: Candidate Path and Segment List. This section describes a h=
ierarchical
relationship between composite candidate paths, SR Policies, candidate path=
s, and segment lists.
It would be much clearer if you could provide a diagram illustrating this h=
ierarchy.

KT> The sec 2.13 illustrates this. We will add a forward reference to it in=
 Sec 2.2.

MB> Thanks. That helps.

3) Terminology section. Since this draft
is really the overall guide to all things SR Policy, it would really help t=
o include a
terminology section summarising  new terms and acronyms.

KT> The document currently describes the constructs in the flow. A terminol=
ogy section would just end up repeating the text up front and without prope=
r context. I prefer to keep the current structure. If there is any specific=
 terminology that you believe is better dealt with in the Terminology secti=
on, please let us know.
 MB> Accepted


Nits:

1) The definite/indefinite article ('the', 'a', etc) is missing from the te=
xt in many places.
I would suggest going through the text carefully and correcting these issue=
s.

KT> Ack. Fixed in a few places. Please let us know if any others were misse=
d out.


2) Section 2.13:

In the information model:

SR policy POL1 <headend =3D H1, color =3D 1, endpoint =3D E1>
        Candidate-path CP1 <protocol-origin =3D 20, originator =3D
   100:1.1.1.1, discriminator =3D 1>
             Preference 200
             Priority 10
             Weight W1, SID-List1 <SID11...SID1i>
             Weight W2, SID-List2 <SID21...SID2j>
                        ^^^^^^^^^

These are referred to as segment lists in the main text, so maybe you shoul=
d align the
terminology.

KT> Ack. Fixed.


Section 4: Segment Types.
Type A: SR-MPLS Label: "...Additionally, reserved labels..." These are now =
commonly
referred to in MPLS as "special purpose labels".


KT> Ack. Fixed.

Thanks,
Ketan


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<body lang=3D"EN-GB" link=3D"blue" vlink=3D"purple" style=3D"word-wrap:brea=
k-word">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;mso-fareast-language=
:EN-US">Hi Ketan<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;mso-fareast-language=
:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;mso-fareast-language=
:EN-US">Thanks for your quick response.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;mso-fareast-language=
:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;mso-fareast-language=
:EN-US">Matthew<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;mso-fareast-language=
:EN-US"><o:p>&nbsp;</o:p></span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-bottom:12.0pt"><b><span style=3D"fon=
t-size:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">Ketan Talaulikar &l=
t;ketant.ietf@gmail.com&gt;<br>
<b>Date: </b>Saturday, 29 January 2022 at 05:33<br>
<b>To: </b>Bocci, Matthew (Nokia - GB) &lt;matthew.bocci@nokia.com&gt;<br>
<b>Cc: </b>&lt;rtg-ads@ietf.org&gt;, rtg-dir@ietf.org &lt;rtg-dir@ietf.org&=
gt;, spring@ietf.org &lt;spring@ietf.org&gt;, last-call@ietf.org &lt;last-c=
all@ietf.org&gt;, draft-ietf-spring-segment-routing-policy.all@ietf.org &lt=
;draft-ietf-spring-segment-routing-policy.all@ietf.org&gt;<br>
<b>Subject: </b>Re: RtgDir Last Call review: draft-ietf-spring-segment-rout=
ing-policy-14<o:p></o:p></span></p>
</div>
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">Hi Matthew,<o:p></o=
:p></span></p>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">Thanks for your det=
ailed review and please find responses inline below.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">Also, we've posted =
an updated version to address your comments. Request you to please check an=
d let us know your feedback.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><a href=3D"https://=
datatracker.ietf.org/doc/html/draft-ietf-spring-segment-routing-policy-16" =
target=3D"_blank">https://datatracker.ietf.org/doc/html/draft-ietf-spring-s=
egment-routing-policy-16</a><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
</div>
</div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">MB&gt; Thanks. This=
 looks good to me. See below for some additional responses.<o:p></o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">On Fri, Jan 28, 202=
2 at 5:21 PM Bocci, Matthew (Nokia - GB) &lt;<a href=3D"mailto:matthew.bocc=
i@nokia.com" target=3D"_blank">matthew.bocci@nokia.com</a>&gt; wrote:<o:p><=
/o:p></span></p>
</div>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0c=
m 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">Hello,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">I have been selected as the Routi=
ng Directorate reviewer for this draft.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">The Routing Directorate seeks to =
review all routing or routing-related<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">drafts as they pass through IETF =
last call and IESG review, and<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">sometimes on special request. The=
 purpose of the review is to provide<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">assistance to the Routing ADs. Fo=
r more information about the Routing<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">Directorate, please see<o:p></o:p=
></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt"><a href=3D"http://trac.tools.ietf=
.org/area/rtg/trac/wiki/RtgDir" target=3D"_blank">http://trac.tools.ietf.or=
g/area/rtg/trac/wiki/RtgDir</a><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">Although these comments are prima=
rily for the use of the Routing ADs, it<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">would be helpful if you could con=
sider them along with any other IETF<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">Last Call comments that you recei=
ve, and strive to resolve them through<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">discussion or by updating the dra=
ft.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">Document: draft-ietf-spring-segme=
nt-routing-policy-14<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">Reviewer: Matthew Bocci<o:p></o:p=
></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">Review Date: 28 January 2022<o:p>=
</o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">Intended Status: Standards Track<=
o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">Summary:
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">In general, this is a well writte=
n document. Thank you.
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">However, I have some minor concer=
ns about this<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">document that I think should be r=
esolved before publication. This mostly revolve around
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">the clarity of the document and t=
he use (or lack thereof) of RFC2119 language.
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">Comments:<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">Major Issues: No major issues fou=
nd<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">Minor Issues:<o:p></o:p></span></=
p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">1) This is a standards track docu=
ment, but in general I found that clear specification language<o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">is missing. For example, in secti=
on 2.3: &quot;A headend may be..&quot; Should this be &quot;A headend MAY b=
e...&quot;?
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">There are many other cases like t=
his where MUST/SHOULD/MAY would be better used rather than<o:p></o:p></span=
></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">'is' or 'can'.<o:p></o:p></span><=
/p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">KT&gt; Ack. Fixed i=
n some places and please let us know if we've missed any.<o:p></o:p></span>=
</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></=
span></p>
</div>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0c=
m 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">2) The references to control plan=
es for provisioning and maintaining SR Policies are only
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">informational, but they are refer=
red to in a manner in the text that I read as normative<o:p></o:p></span></=
p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">(although the language is not alw=
ays clear). For example, in section 2.5: &quot;When signaling
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">is via PCEP...&quot; and then the=
 paragraph refers to an informative reference to the<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">PCE draft for the SR policy contr=
ol plane. Given that this is a standards track architecture<o:p></o:p></spa=
n></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">document, it would be much better=
 to be clear about what the normative parts of the
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">architecture are. If these parts =
are not normative (for example even if I use BGP it is not<o:p></o:p></span=
></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">mandatory to use it according to =
a particular specification) then please be explicit<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">and use 'MAY' or 'SHOULD'.<o:p></=
o:p></span></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">KT&gt; Given that t=
his is an architecture document, it describes the architecture and not real=
ly the protocol mechanisms. This is in line with other SPRING documents. Th=
e normative language for the BGP mechanism
 is in the IDR document. The informative references, in this document, to t=
hose protocol mechanisms are only to give a better reference/info to the re=
ader.&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">&nbsp;</span><span =
style=3D"font-size:11.0pt">MB&gt; I agree you have followed the precedent o=
f the SR architecture (RFC8402), so I am OK with that.</span><span style=3D=
"font-size:11.0pt"><o:p></o:p></span></p>
</div>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0c=
m 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">3) Section 2.2: Candidate Path an=
d Segment List. This section describes a hierarchical<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">relationship between composite ca=
ndidate paths, SR Policies, candidate paths, and segment lists.<o:p></o:p><=
/span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">It would be much clearer if you c=
ould provide a diagram illustrating this hierarchy.<o:p></o:p></span></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">KT&gt; The sec 2.13=
 illustrates this. We will add a forward reference to it in Sec 2.2.<o:p></=
o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">MB&gt; Thanks. That=
 helps.<o:p></o:p></span></p>
</div>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0c=
m 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">3) Terminology section. Since thi=
s draft<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">is really the overall guide to al=
l things SR Policy, it would really help to include a
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">terminology section summarising&n=
bsp; new terms and acronyms.<o:p></o:p></span></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">KT&gt; The document=
 currently describes the constructs in the flow. A terminology section woul=
d just end up repeating the text up front and without proper context. I pre=
fer to keep the current structure. If there
 is any specific terminology that you believe is better dealt with in the T=
erminology section, please let us know.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">&nbsp;MB&gt; Accept=
ed<o:p></o:p></span></p>
</div>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0c=
m 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">Nits:<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">1) The definite/indefinite articl=
e ('the', 'a', etc) is missing from the text in many places.
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">I would suggest going through the=
 text carefully and correcting these issues.<o:p></o:p></span></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">KT&gt; Ack. Fixed i=
n a few places. Please let us know if any others were missed out.<o:p></o:p=
></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></=
span></p>
</div>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0c=
m 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">2) Section 2.13:<o:p></o:p></span=
></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">In the information model:<o:p></o=
:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt;font-family:&quot;Courier New&quot=
;">SR policy POL1 &lt;headend =3D H1, color =3D 1, endpoint =3D E1&gt;</spa=
n><span style=3D"font-size:11.0pt"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt;font-family:&quot;Courier New&quot=
;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Candidate-path CP1 &lt;protoc=
ol-origin =3D 20, originator =3D</span><span style=3D"font-size:11.0pt"><o:=
p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt;font-family:&quot;Courier New&quot=
;">&nbsp;&nbsp; 100:1.1.1.1, discriminator =3D 1&gt;</span><span style=3D"f=
ont-size:11.0pt"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt;font-family:&quot;Courier New&quot=
;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
 Preference 200</span><span style=3D"font-size:11.0pt"><o:p></o:p></span></=
p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt;font-family:&quot;Courier New&quot=
;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
 Priority 10</span><span style=3D"font-size:11.0pt"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt;font-family:&quot;Courier New&quot=
;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
 Weight W1, SID-List1 &lt;SID11...SID1i&gt;</span><span style=3D"font-size:=
11.0pt"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt;font-family:&quot;Courier New&quot=
;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
 Weight W2, SID-List2 &lt;SID21...SID2j&gt;</span><span style=3D"font-size:=
11.0pt"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt;font-family:&quot;Courier New&quot=
;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ^^^^^^^^=
^</span><span style=3D"font-size:11.0pt"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">These are referred to as segment =
lists in the main text, so maybe you should align the<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">terminology.<o:p></o:p></span></p=
>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">KT&gt; Ack. Fixed.<=
o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></=
span></p>
</div>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0c=
m 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">Section 4: Segment Types.<o:p></o=
:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">Type A: SR-MPLS Label: &quot;...A=
dditionally, reserved labels...&quot; These are now commonly
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">referred to in MPLS as &quot;spec=
ial purpose labels&quot;.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></span></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">KT&gt; Ack. Fixed.<=
o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p>&nbsp;</o:p></=
span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">Thanks,<o:p></o:p><=
/span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">Ketan<o:p></o:p></s=
pan></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">&nbsp;<o:p></o:p></=
span></p>
</div>
</div>
</div>
</div>
</body>
</html>

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From: Ketan Talaulikar <ketant.ietf@gmail.com>
Date: Thu, 3 Feb 2022 21:29:38 +0530
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Subject: Re: [RTG-DIR] RtgDir Last Call review: draft-ietf-spring-segment-routing-policy-14
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Thanks Matthew


On Wed, Feb 2, 2022 at 5:37 PM Bocci, Matthew (Nokia - GB) <
matthew.bocci@nokia.com> wrote:

> Hi Ketan
>
>
>
> Thanks for your quick response.
>
>
>
> Matthew
>
>
>
> *From: *Ketan Talaulikar <ketant.ietf@gmail.com>
> *Date: *Saturday, 29 January 2022 at 05:33
> *To: *Bocci, Matthew (Nokia - GB) <matthew.bocci@nokia.com>
> *Cc: *<rtg-ads@ietf.org>, rtg-dir@ietf.org <rtg-dir@ietf.org>,
> spring@ietf.org <spring@ietf.org>, last-call@ietf.org <last-call@ietf.org>,
> draft-ietf-spring-segment-routing-policy.all@ietf.org <
> draft-ietf-spring-segment-routing-policy.all@ietf.org>
> *Subject: *Re: RtgDir Last Call review:
> draft-ietf-spring-segment-routing-policy-14
>
> Hi Matthew,
>
>
>
> Thanks for your detailed review and please find responses inline below.
>
>
>
> Also, we've posted an updated version to address your comments. Request
> you to please check and let us know your feedback.
>
>
> https://datatracker.ietf.org/doc/html/draft-ietf-spring-segment-routing-policy-16
>
>
>
>
>
> MB> Thanks. This looks good to me. See below for some additional responses.
>
>
>
> On Fri, Jan 28, 2022 at 5:21 PM Bocci, Matthew (Nokia - GB) <
> matthew.bocci@nokia.com> 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: draft-ietf-spring-segment-routing-policy-14
>
> Reviewer: Matthew Bocci
>
> Review Date: 28 January 2022
>
> Intended Status: Standards Track
>
>
>
> Summary:
>
>
>
> In general, this is a well written document. Thank you.
>
>
>
> However, I have some minor concerns about this
>
> document that I think should be resolved before publication. This mostly
> revolve around
>
> the clarity of the document and the use (or lack thereof) of RFC2119
> language.
>
>
>
> Comments:
>
>
>
> Major Issues: No major issues found
>
>
>
> Minor Issues:
>
>
>
> 1) This is a standards track document, but in general I found that clear
> specification language
>
> is missing. For example, in section 2.3: "A headend may be.." Should this
> be "A headend MAY be..."?
>
> There are many other cases like this where MUST/SHOULD/MAY would be better
> used rather than
>
> 'is' or 'can'.
>
>
>
> KT> Ack. Fixed in some places and please let us know if we've missed any.
>
>
>
>
>
> 2) The references to control planes for provisioning and maintaining SR
> Policies are only
>
> informational, but they are referred to in a manner in the text that I
> read as normative
>
> (although the language is not always clear). For example, in section 2.5:
> "When signaling
>
> is via PCEP..." and then the paragraph refers to an informative reference
> to the
>
> PCE draft for the SR policy control plane. Given that this is a standards
> track architecture
>
> document, it would be much better to be clear about what the normative
> parts of the
>
> architecture are. If these parts are not normative (for example even if I
> use BGP it is not
>
> mandatory to use it according to a particular specification) then please
> be explicit
>
> and use 'MAY' or 'SHOULD'.
>
>
>
> KT> Given that this is an architecture document, it describes the
> architecture and not really the protocol mechanisms. This is in line with
> other SPRING documents. The normative language for the BGP mechanism is in
> the IDR document. The informative references, in this document, to those
> protocol mechanisms are only to give a better reference/info to the reader.
>
>
>
>  MB> I agree you have followed the precedent of the SR architecture
> (RFC8402), so I am OK with that.
>
>
>
> 3) Section 2.2: Candidate Path and Segment List. This section describes a
> hierarchical
>
> relationship between composite candidate paths, SR Policies, candidate
> paths, and segment lists.
>
> It would be much clearer if you could provide a diagram illustrating this
> hierarchy.
>
>
>
> KT> The sec 2.13 illustrates this. We will add a forward reference to it
> in Sec 2.2.
>
>
>
> MB> Thanks. That helps.
>
>
>
> 3) Terminology section. Since this draft
>
> is really the overall guide to all things SR Policy, it would really help
> to include a
>
> terminology section summarising  new terms and acronyms.
>
>
>
> KT> The document currently describes the constructs in the flow. A
> terminology section would just end up repeating the text up front and
> without proper context. I prefer to keep the current structure. If there is
> any specific terminology that you believe is better dealt with in the
> Terminology section, please let us know.
>
>  MB> Accepted
>
>
>
>
>
> Nits:
>
>
>
> 1) The definite/indefinite article ('the', 'a', etc) is missing from the
> text in many places.
>
> I would suggest going through the text carefully and correcting these
> issues.
>
>
>
> KT> Ack. Fixed in a few places. Please let us know if any others were
> missed out.
>
>
>
>
>
> 2) Section 2.13:
>
>
>
> In the information model:
>
>
>
> SR policy POL1 <headend = H1, color = 1, endpoint = E1>
>
>         Candidate-path CP1 <protocol-origin = 20, originator =
>
>    100:1.1.1.1, discriminator = 1>
>
>              Preference 200
>
>              Priority 10
>
>              Weight W1, SID-List1 <SID11...SID1i>
>
>              Weight W2, SID-List2 <SID21...SID2j>
>
>                         ^^^^^^^^^
>
>
>
> These are referred to as segment lists in the main text, so maybe you
> should align the
>
> terminology.
>
>
>
> KT> Ack. Fixed.
>
>
>
>
>
> Section 4: Segment Types.
>
> Type A: SR-MPLS Label: "...Additionally, reserved labels..." These are now
> commonly
>
> referred to in MPLS as "special purpose labels".
>
>
>
>
>
> KT> Ack. Fixed.
>
>
>
> Thanks,
>
> Ketan
>
>
>

--0000000000007d662d05d71f3999
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Thanks Matthew<div><br></div></div><br><div class=3D"gmail=
_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Wed, Feb 2, 2022 at 5:37 P=
M Bocci, Matthew (Nokia - GB) &lt;<a href=3D"mailto:matthew.bocci@nokia.com=
">matthew.bocci@nokia.com</a>&gt; wrote:<br></div><blockquote class=3D"gmai=
l_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,20=
4,204);padding-left:1ex">





<div lang=3D"EN-GB" style=3D"overflow-wrap: break-word;">
<div class=3D"gmail-m_886249324992069051WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Hi Ketan<u></u><u></u=
></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt"><u></u>=C2=A0<u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Thanks for your quick=
 response.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt"><u></u>=C2=A0<u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Matthew<u></u><u></u>=
</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt"><u></u>=C2=A0<u></u><=
/span></p>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(181,196,223);padding:3pt 0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-bottom:12pt"><b><span style=3D"font-=
size:12pt;color:black">From:
</span></b><span style=3D"font-size:12pt;color:black">Ketan Talaulikar &lt;=
<a href=3D"mailto:ketant.ietf@gmail.com" target=3D"_blank">ketant.ietf@gmai=
l.com</a>&gt;<br>
<b>Date: </b>Saturday, 29 January 2022 at 05:33<br>
<b>To: </b>Bocci, Matthew (Nokia - GB) &lt;<a href=3D"mailto:matthew.bocci@=
nokia.com" target=3D"_blank">matthew.bocci@nokia.com</a>&gt;<br>
<b>Cc: </b>&lt;<a href=3D"mailto:rtg-ads@ietf.org" target=3D"_blank">rtg-ad=
s@ietf.org</a>&gt;, <a href=3D"mailto:rtg-dir@ietf.org" target=3D"_blank">r=
tg-dir@ietf.org</a> &lt;<a href=3D"mailto:rtg-dir@ietf.org" target=3D"_blan=
k">rtg-dir@ietf.org</a>&gt;, <a href=3D"mailto:spring@ietf.org" target=3D"_=
blank">spring@ietf.org</a> &lt;<a href=3D"mailto:spring@ietf.org" target=3D=
"_blank">spring@ietf.org</a>&gt;, <a href=3D"mailto:last-call@ietf.org" tar=
get=3D"_blank">last-call@ietf.org</a> &lt;<a href=3D"mailto:last-call@ietf.=
org" target=3D"_blank">last-call@ietf.org</a>&gt;, <a href=3D"mailto:draft-=
ietf-spring-segment-routing-policy.all@ietf.org" target=3D"_blank">draft-ie=
tf-spring-segment-routing-policy.all@ietf.org</a> &lt;<a href=3D"mailto:dra=
ft-ietf-spring-segment-routing-policy.all@ietf.org" target=3D"_blank">draft=
-ietf-spring-segment-routing-policy.all@ietf.org</a>&gt;<br>
<b>Subject: </b>Re: RtgDir Last Call review: draft-ietf-spring-segment-rout=
ing-policy-14<u></u><u></u></span></p>
</div>
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Hi Matthew,<u></u><u>=
</u></span></p>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt"><u></u>=C2=A0<u></u><=
/span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Thanks for your detai=
led review and please find responses inline below.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt"><u></u>=C2=A0<u></u><=
/span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Also, we&#39;ve poste=
d an updated version to address your comments. Request you to please check =
and let us know your feedback.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt"><a href=3D"https://da=
tatracker.ietf.org/doc/html/draft-ietf-spring-segment-routing-policy-16" ta=
rget=3D"_blank">https://datatracker.ietf.org/doc/html/draft-ietf-spring-seg=
ment-routing-policy-16</a><u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt"><u></u>=C2=A0<u></u><=
/span></p>
</div>
</div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt"><u></u>=C2=A0<u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">MB&gt; Thanks. This l=
ooks good to me. See below for some additional responses.<u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt"><u></u>=C2=A0<u></u><=
/span></p>
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">On Fri, Jan 28, 2022 =
at 5:21 PM Bocci, Matthew (Nokia - GB) &lt;<a href=3D"mailto:matthew.bocci@=
nokia.com" target=3D"_blank">matthew.bocci@nokia.com</a>&gt; wrote:<u></u><=
u></u></span></p>
</div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0cm 0cm 0cm 6pt;margin-left:4=
.8pt;margin-right:0cm">
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Hello,<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">I have been selected =
as the Routing Directorate reviewer for this draft.<u></u><u></u></span></p=
>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">The Routing Directora=
te seeks to review all routing or routing-related<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">drafts as they pass t=
hrough IETF last call and IESG review, and<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">sometimes on special =
request. The purpose of the review is to provide<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">assistance to the Rou=
ting ADs. For more information about the Routing<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Directorate, please s=
ee<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt"><a href=3D"http://tra=
c.tools.ietf.org/area/rtg/trac/wiki/RtgDir" target=3D"_blank">http://trac.t=
ools.ietf.org/area/rtg/trac/wiki/RtgDir</a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Although these commen=
ts are primarily for the use of the Routing ADs, it<u></u><u></u></span></p=
>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">would be helpful if y=
ou could consider them along with any other IETF<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Last Call comments th=
at you receive, and strive to resolve them through<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">discussion or by upda=
ting the draft.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Document: draft-ietf-=
spring-segment-routing-policy-14<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Reviewer: Matthew Boc=
ci<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Review Date: 28 Janua=
ry 2022<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Intended Status: Stan=
dards Track<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Summary:
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">In general, this is a=
 well written document. Thank you.
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">However, I have some =
minor concerns about this<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">document that I think=
 should be resolved before publication. This mostly revolve around
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">the clarity of the do=
cument and the use (or lack thereof) of RFC2119 language.
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Comments:<u></u><u></=
u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Major Issues: No majo=
r issues found<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Minor Issues:<u></u><=
u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">1) This is a standard=
s track document, but in general I found that clear specification language<=
u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">is missing. For examp=
le, in section 2.3: &quot;A headend may be..&quot; Should this be &quot;A h=
eadend MAY be...&quot;?
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">There are many other =
cases like this where MUST/SHOULD/MAY would be better used rather than<u></=
u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">&#39;is&#39; or &#39;=
can&#39;.<u></u><u></u></span></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt"><u></u>=C2=A0<u></u><=
/span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">KT&gt; Ack. Fixed in =
some places and please let us know if we&#39;ve missed any.<u></u><u></u></=
span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
</div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0cm 0cm 0cm 6pt;margin-left:4=
.8pt;margin-right:0cm">
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">2) The references to =
control planes for provisioning and maintaining SR Policies are only
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">informational, but th=
ey are referred to in a manner in the text that I read as normative<u></u><=
u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">(although the languag=
e is not always clear). For example, in section 2.5: &quot;When signaling
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">is via PCEP...&quot; =
and then the paragraph refers to an informative reference to the<u></u><u><=
/u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">PCE draft for the SR =
policy control plane. Given that this is a standards track architecture<u><=
/u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">document, it would be=
 much better to be clear about what the normative parts of the
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">architecture are. If =
these parts are not normative (for example even if I use BGP it is not<u></=
u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">mandatory to use it a=
ccording to a particular specification) then please be explicit<u></u><u></=
u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">and use &#39;MAY&#39;=
 or &#39;SHOULD&#39;.<u></u><u></u></span></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt"><u></u>=C2=A0<u></u><=
/span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">KT&gt; Given that thi=
s is an architecture document, it describes the architecture and not really=
 the protocol mechanisms. This is in line with other SPRING documents. The =
normative language for the BGP mechanism
 is in the IDR document. The informative references, in this document, to t=
hose protocol mechanisms are only to give a better reference/info to the re=
ader.=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt"><u></u>=C2=A0<u></u><=
/span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0</span><span st=
yle=3D"font-size:11pt">MB&gt; I agree you have followed the precedent of th=
e SR architecture (RFC8402), so I am OK with that.</span><span style=3D"fon=
t-size:11pt"><u></u><u></u></span></p>
</div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0cm 0cm 0cm 6pt;margin-left:4=
.8pt;margin-right:0cm">
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">3) Section 2.2: Candi=
date Path and Segment List. This section describes a hierarchical<u></u><u>=
</u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">relationship between =
composite candidate paths, SR Policies, candidate paths, and segment lists.=
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">It would be much clea=
rer if you could provide a diagram illustrating this hierarchy.<u></u><u></=
u></span></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt"><u></u>=C2=A0<u></u><=
/span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">KT&gt; The sec 2.13 i=
llustrates this. We will add a forward reference to it in Sec 2.2.<u></u><u=
></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">MB&gt; Thanks. That h=
elps.<u></u><u></u></span></p>
</div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0cm 0cm 0cm 6pt;margin-left:4=
.8pt;margin-right:0cm">
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">3) Terminology sectio=
n. Since this draft<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">is really the overall=
 guide to all things SR Policy, it would really help to include a
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">terminology section s=
ummarising=C2=A0 new terms and acronyms.<u></u><u></u></span></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt"><u></u>=C2=A0<u></u><=
/span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">KT&gt; The document c=
urrently describes the constructs in the flow. A terminology section would =
just end up repeating the text up front and without proper context. I prefe=
r to keep the current structure. If there
 is any specific terminology that you believe is better dealt with in the T=
erminology section, please let us know.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0MB&gt; Accepted=
<u></u><u></u></span></p>
</div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0cm 0cm 0cm 6pt;margin-left:4=
.8pt;margin-right:0cm">
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Nits:<u></u><u></u></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">1) The definite/indef=
inite article (&#39;the&#39;, &#39;a&#39;, etc) is missing from the text in=
 many places.
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">I would suggest going=
 through the text carefully and correcting these issues.<u></u><u></u></spa=
n></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt"><u></u>=C2=A0<u></u><=
/span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">KT&gt; Ack. Fixed in =
a few places. Please let us know if any others were missed out.<u></u><u></=
u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
</div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0cm 0cm 0cm 6pt;margin-left:4=
.8pt;margin-right:0cm">
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">2) Section 2.13:<u></=
u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">In the information mo=
del:<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt;font-family:&quot;Cour=
ier New&quot;">SR policy POL1 &lt;headend =3D H1, color =3D 1, endpoint =3D=
 E1&gt;</span><span style=3D"font-size:11pt"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt;font-family:&quot;Cour=
ier New&quot;">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Candidate-path CP=
1 &lt;protocol-origin =3D 20, originator =3D</span><span style=3D"font-size=
:11pt"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt;font-family:&quot;Cour=
ier New&quot;">=C2=A0=C2=A0 100:1.1.1.1, discriminator =3D 1&gt;</span><spa=
n style=3D"font-size:11pt"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt;font-family:&quot;Cour=
ier New&quot;">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0 Preference 200</span><span style=3D"font-size:11pt"><u></u><u>=
</u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt;font-family:&quot;Cour=
ier New&quot;">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0 Priority 10</span><span style=3D"font-size:11pt"><u></u><u></u=
></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt;font-family:&quot;Cour=
ier New&quot;">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0 Weight W1, SID-List1 &lt;SID11...SID1i&gt;</span><span style=
=3D"font-size:11pt"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt;font-family:&quot;Cour=
ier New&quot;">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0 Weight W2, SID-List2 &lt;SID21...SID2j&gt;</span><span style=
=3D"font-size:11pt"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt;font-family:&quot;Cour=
ier New&quot;">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0 ^^^^^^^^^</span><span style=3D"font-size:11pt"><u></u><u></u></span></p=
>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">These are referred to=
 as segment lists in the main text, so maybe you should align the<u></u><u>=
</u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">terminology.<u></u><u=
></u></span></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt"><u></u>=C2=A0<u></u><=
/span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">KT&gt; Ack. Fixed.<u>=
</u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
</div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0cm 0cm 0cm 6pt;margin-left:4=
.8pt;margin-right:0cm">
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Section 4: Segment Ty=
pes.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Type A: SR-MPLS Label=
: &quot;...Additionally, reserved labels...&quot; These are now commonly
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">referred to in MPLS a=
s &quot;special purpose labels&quot;.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt"><u></u>=C2=A0<u></u><=
/span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">KT&gt; Ack. Fixed.<u>=
</u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt"><u></u>=C2=A0<u></u><=
/span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Thanks,<u></u><u></u>=
</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">Ketan<u></u><u></u></=
span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt">=C2=A0<u></u><u></u><=
/span></p>
</div>
</div>
</div>
</div>
</div>

</blockquote></div>

--0000000000007d662d05d71f3999--


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From: Ketan Talaulikar <ketant.ietf@gmail.com>
Date: Thu, 3 Feb 2022 21:30:44 +0530
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To: Andy Smith <ajsphila@gmail.com>
Cc: rtg-dir@ietf.org, draft-ietf-lsr-ospf-bfd-strict-mode.all@ietf.org,  last-call@ietf.org, lsr <lsr@ietf.org>
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Subject: Re: [RTG-DIR] Rtgdir last call review of draft-ietf-lsr-ospf-bfd-strict-mode-04
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--0000000000005eb85b05d71f3d8a
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Andy, thanks for your review and feedback.

Thanks,
Ketan


On Tue, Feb 1, 2022 at 10:04 PM Andy Smith via Datatracker <noreply@ietf.or=
g>
wrote:

> Reviewer: Andy Smith
> Review result: Ready
>
> 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 specia=
l
> request. The purpose of the review is to provide assistance to the Routin=
g
> ADs.
> For more information about the Routing Directorate, please 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 Last Call
> comments that you receive, and strive to resolve them through discussion
> or by
> updating the draft.
>
> Document: draft-ietf-lsr-ospf-bfd-strict-mode-04
> Reviewer: Andy Smith
> Review Date: 1 Feb 2022
> IETF LC End Date:
> Intended Status:
>
> Summary:
>
> No issues found. This document is ready for publication.
>
> Comments:
>
> This is a novel idea and the description of it is well written.   The
> reader
> can understand the background and motivation as to the benefits of an OSP=
F
> environment with BFD enabled as a fundamental, required option.
>
> Thanks for the opportunity to review this draft.
>
> Major Issues:
>
> No major issues found.
>
> Minor Issues:
>
> No minor issues found.
>
>
>
>

--0000000000005eb85b05d71f3d8a
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<div dir=3D"ltr">Andy, thanks for your review and feedback.<div><br></div><=
div>Thanks,</div><div>Ketan</div><div><br></div></div><br><div class=3D"gma=
il_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Tue, Feb 1, 2022 at 10:0=
4 PM Andy Smith via Datatracker &lt;<a href=3D"mailto:noreply@ietf.org">nor=
eply@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">Reviewer: Andy Smith<br>
Review result: Ready<br>
<br>
Hello,<br>
<br>
I have been selected as the Routing Directorate reviewer for this draft. Th=
e<br>
Routing Directorate seeks to review all routing or routing-related drafts a=
s<br>
they pass through IETF last call and IESG review, and sometimes on special<=
br>
request. The purpose of the review is to provide assistance to the Routing =
ADs.<br>
For more information about the Routing Directorate, please see<br>
=E2=80=8B<a href=3D"http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir" r=
el=3D"noreferrer" target=3D"_blank">http://trac.tools.ietf.org/area/rtg/tra=
c/wiki/RtgDir</a><br>
<br>
Although these comments are primarily for the use of the Routing ADs, it wo=
uld<br>
be helpful if you could consider them along with any other IETF Last Call<b=
r>
comments that you receive, and strive to resolve them through discussion or=
 by<br>
updating the draft.<br>
<br>
Document: draft-ietf-lsr-ospf-bfd-strict-mode-04<br>
Reviewer: Andy Smith<br>
Review Date: 1 Feb 2022<br>
IETF LC End Date:<br>
Intended Status:<br>
<br>
Summary:<br>
<br>
No issues found. This document is ready for publication.<br>
<br>
Comments:<br>
<br>
This is a novel idea and the description of it is well written.=C2=A0 =C2=
=A0The reader<br>
can understand the background and motivation as to the benefits of an OSPF<=
br>
environment with BFD enabled as a fundamental, required option.<br>
<br>
Thanks for the opportunity to review this draft.<br>
<br>
Major Issues:<br>
<br>
No major issues found.<br>
<br>
Minor Issues:<br>
<br>
No minor issues found.<br>
<br>
<br>
<br>
</blockquote></div>

--0000000000005eb85b05d71f3d8a--


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From: Mach Chen <mach.chen@huawei.com>
To: "Templin (US), Fred L" <Fred.L.Templin@boeing.com>, Mach Chen <mach.chen=40huawei.com@dmarc.ietf.org>, rtgwg-chairs <rtgwg-chairs@ietf.org>, "draft-ietf-rtgwg-atn-bgp.all@ietf.org" <draft-ietf-rtgwg-atn-bgp.all@ietf.org>
CC: "rtg-dir@ietf.org" <rtg-dir@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Thread-Topic: RtgDir Early review: draft-ietf-rtgwg-atn-bgp-12.txt
Thread-Index: AdgUGaclNnx9glFRQ9uqIS9oANN5iwCqU6YQAVDADeA=
Date: Mon, 7 Feb 2022 10:01:26 +0000
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Subject: Re: [RTG-DIR] RtgDir Early review: draft-ietf-rtgwg-atn-bgp-12.txt
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From: "Templin (US), Fred L" <Fred.L.Templin@boeing.com>
To: Mach Chen <mach.chen@huawei.com>, Mach Chen <mach.chen=40huawei.com@dmarc.ietf.org>, rtgwg-chairs <rtgwg-chairs@ietf.org>, "draft-ietf-rtgwg-atn-bgp.all@ietf.org" <draft-ietf-rtgwg-atn-bgp.all@ietf.org>
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Thread-Topic: RtgDir Early review: draft-ietf-rtgwg-atn-bgp-12.txt
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Date: Mon, 7 Feb 2022 16:26:12 +0000
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Subject: Re: [RTG-DIR] RtgDir Early review: draft-ietf-rtgwg-atn-bgp-12.txt
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From: Mach Chen <mach.chen@huawei.com>
To: "Templin (US), Fred L" <Fred.L.Templin@boeing.com>, Mach Chen <mach.chen=40huawei.com@dmarc.ietf.org>, rtgwg-chairs <rtgwg-chairs@ietf.org>, "draft-ietf-rtgwg-atn-bgp.all@ietf.org" <draft-ietf-rtgwg-atn-bgp.all@ietf.org>
CC: "rtg-dir@ietf.org" <rtg-dir@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Thread-Topic: RtgDir Early review: draft-ietf-rtgwg-atn-bgp-12.txt
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Date: Tue, 8 Feb 2022 01:34:39 +0000
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Subject: Re: [RTG-DIR] RtgDir Early review: draft-ietf-rtgwg-atn-bgp-12.txt
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From nobody Tue Feb  8 16:34:24 2022
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From: Himanshu Shah via Datatracker <noreply@ietf.org>
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Subject: [RTG-DIR] Rtgdir last call review of draft-ietf-babel-v4viav6-07
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Reviewer: Himanshu Shah
Review result: Ready

The draft is written well and easy to follow the proposed extensions for those
who are familiar with the Babel Protocol as described in RFC 8966.

In my view,  a couple of minor updates would read better for the novice reader.

In the Introduction, section 1, last but one paragraph -
--
 We call a route towards an IPv4 prefix that uses an IPv6 next hop a
   "v4-via-v6" route.  This document describes an extension that allows
   the Babel routing protocol [RFC8966] to announce v4-via-v6 routes
   across interfaces that have no IPv4 addresses assigned
(suggested append..)
"and are capable of forwarding IPv4 traffic over non-IPv4 interfaces".
(end of suggestion - or something similar to that effect..).
--
On support for ICMPv4 packet generation by Babel node that has IPv6 interfaces..
While this topic is covered, it would be nice if its importance is mentioned
somewhere in introduction or in section 3.

Such as -
"For hop-by-hop reachability distribution, it is important to facilitate
ICMPv4 "destination unreachable" from non-IPv4 Babel router to notify the
source about incomplete IPv4 path (i.e. dangling IPv4 path)."

Again these are suggestions to improve readability and author(s) can provide
the right text if applicable.

I must admit that I am not intimate with Babel protocol so take above
suggestions with a pinch of salt..




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Date: Thu, 24 Feb 2022 17:46:24 +0100
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From: Juliusz Chroboczek <jch@irif.fr>
To: Himanshu Shah <hshah@ciena.com>
Cc: <rtg-dir@ietf.org>, babel@ietf.org, draft-ietf-babel-v4viav6.all@ietf.org,  last-call@ietf.org
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Archived-At: <https://mailarchive.ietf.org/arch/msg/rtg-dir/bmgxdk1FGyyGVGdssTUgaFwUiYw>
Subject: Re: [RTG-DIR] Rtgdir last call review of draft-ietf-babel-v4viav6-07
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> Reviewer: Himanshu Shah
> Review result: Ready

Thanks for your review.

> (suggested append..)
> "and are capable of forwarding IPv4 traffic over non-IPv4 interfaces".
> (end of suggestion - or something similar to that effect..).

Right.  Done roughly what you suggest.

> While this topic is covered, it would be nice if its importance is mentioned
> somewhere in introduction or in section 3.
> 
> Such as -
> "For hop-by-hop reachability distribution, it is important to facilitate
> ICMPv4 "destination unreachable" from non-IPv4 Babel router to notify the
> source about incomplete IPv4 path (i.e. dangling IPv4 path)."

I most respectfully disagree.  The issue of ICMPv4 is a complex one, and
I'd rather not try to (mis-)summarise it in one sentence.  There's a whole
section devoted to it, and it's referenced from the introduction.

(I am actually sympathetic to Warren Kumari's opinion that it's complex
enough to deserve a whole document.)

-- Juliusz


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Subject: [RTG-DIR] Rtgdir last call review of draft-iab-rfcefdp-rfced-model-11
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Reviewer: Stig Venaas
Review result: Has Nits

I have reviewed the document and it is in good shape.

The document has a few nits found by the idnits tool. The string "RFC" should
not be included when specifing "obsoletes:" or "updates:". Also the abstract
mentions that the documents obsoletes or updates documents that are not listed
by the obsoletes/updates headers.

In 3.1.1.4. paragraph 4:
"participation for those unable to to attend in person."
Double "to".

I'm wondering whether any of the references should be normative, but it may not
make sense for this document.



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Subject: Re: [RTG-DIR] [Rfced-future] RTG-DIR Last Call review of draft-rsalz-2028bis-05
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From: Eliot Lear <lear@lear.ch>
To: Alexander Vainshtein <Alexander.Vainshtein@rbbn.com>,
 "rtg-ads@ietf.org" <rtg-ads@ietf.org>, Lars Eggert <lars@eggert.org>
Cc: "rfced-future@iab.org" <rfced-future@iab.org>,
 "rtg-dir@ietf.org" <rtg-dir@ietf.org>,
 "draft-rsalz-2028bis.all@ietf.org" <draft-rsalz-2028bis.all@ietf.org>
Message-ID: <88f6dc3f-3a50-b028-e66c-557522206f85@lear.ch>
Subject: Re: [Rfced-future] RTG-DIR Last Call review of draft-rsalz-2028bis-05
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In-Reply-To: <PH0PR03MB6300DB1263D5ADEF4024C096F6019@PH0PR03MB6300.namprd03.prod.outlook.com>

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<html>
  <head>
    <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3DUTF=
-8">
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  <body>
    <p>Hi Sasha,<br>
    </p>
    <div class=3D"moz-cite-prefix">On 28.02.22 16:00, Alexander Vainshtei=
n
      wrote:<br>
    </div>
    <blockquote type=3D"cite"
cite=3D"mid:PH0PR03MB6300DB1263D5ADEF4024C096F6019@PH0PR03MB6300.namprd03=
=2Eprod.outlook.com">
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      <div class=3D"WordSection1">
        <p style=3D"background:white"><span
style=3D"font-size:10.0pt;font-family:&quot;Verdana&quot;,sans-serif;colo=
r:black">Hello,<o:p></o:p></span></p>
        <p style=3D"background:white;font-variant-ligatures:
          normal;font-variant-caps: normal;orphans:
          2;text-align:start;widows: 2;-webkit-text-stroke-width:
          0px;text-decoration-thickness: initial;text-decoration-style:
          initial;text-decoration-color: initial;word-spacing:0px">
          <span
style=3D"font-size:10.0pt;font-family:&quot;Verdana&quot;,sans-serif;colo=
r: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=C2=A0<a
              href=3D"http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDi=
r"
              moz-do-not-send=3D"true"><span class=3D"icon"><span
style=3D"font-family:&quot;Arial&quot;,sans-serif;color:#BB0000;text-deco=
ration:none">=E2=80=8B</span></span><span
                style=3D"color:#BB0000">http://trac.tools.ietf.org/area/r=
tg/trac/wiki/RtgDir</span></a><o:p></o:p></span></p>
        <p style=3D"background:white;font-variant-ligatures:
          normal;font-variant-caps: normal;orphans:
          2;text-align:start;widows: 2;-webkit-text-stroke-width:
          0px;text-decoration-thickness: initial;text-decoration-style:
          initial;text-decoration-color: initial;word-spacing:0px">
          <span
style=3D"font-size:10.0pt;font-family:&quot;Verdana&quot;,sans-serif;colo=
r: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.<o:p></o:p></span></p>
        <p style=3D"background:white;font-variant-ligatures:
          normal;font-variant-caps: normal;orphans:
          2;text-align:start;widows: 2;-webkit-text-stroke-width:
          0px;text-decoration-thickness: initial;text-decoration-style:
          initial;text-decoration-color: initial;word-spacing:0px">
          <span
style=3D"font-size:10.0pt;font-family:&quot;Verdana&quot;,sans-serif;colo=
r:black">Document:
            draft-rsalz-2028bis-05
            <br>
            Reviewer: Alexander (|=E2=80=9DSasha=E2=80=9D) Vainshtein<br>=

            Review Date: 28-Feb-22<br>
            IETF LC End Date: 07-Mar-22<br>
            Intended Status: Nest Current Practice<o:p></o:p></span></p>
        <p style=3D"background:white"><strong><span
style=3D"font-size:10.0pt;font-family:&quot;Verdana&quot;,sans-serif;colo=
r:black">Summary:</span></strong><span
style=3D"font-size:10.0pt;font-family:&quot;Verdana&quot;,sans-serif;colo=
r:black">
            <o:p></o:p></span></p>
        <p style=3D"background:white"><span
style=3D"font-size:10.0pt;font-family:&quot;Verdana&quot;,sans-serif;colo=
r:black">I
            have some minor concerns about this document that I think
            should be resolved before publication.<o:p></o:p></span></p>
        <p class=3D"MsoNormal"><strong><span
style=3D"font-size:10.0pt;font-family:&quot;Verdana&quot;,sans-serif;colo=
r:black;background:white">Comments</span></strong><b>:<o:p></o:p></b></p>=

        <p class=3D"MsoNormal">The draft describes entities involved in
          the IETF standards process. It is easy to read.<o:p></o:p></p>
        <p class=3D"MsoNormal">To the best of my understanding its purpos=
e
          is alignment with the current structure of the Internet
          Society and its affiliated organizations (IETF, IANA, RFC
          Production center (nee RFC Editor) etc.=C2=A0 The previous docu=
ment
          describing these entities has been published as RFC 2028 in
          1996.<o:p></o:p></p>
        <p class=3D"MsoNormal">The author of the draft and I have
          exchanged a few emails regarding my concerns. We did not reach
          the agreement, but in any case I would like to than the author
          for responsiveness and cooperation.<o:p></o:p></p>
        <p class=3D"MsoNormal"><o:p>=C2=A0</o:p></p>
        <p class=3D"MsoNormal"><b>Major Issues</b>: None found<o:p></o:p>=
</p>
        <p class=3D"MsoNormal"><o:p>=C2=A0</o:p></p>
        <p class=3D"MsoNormal"><b>Minor Issues</b>: <o:p></o:p></p>
        <p class=3D"MsoNormal"><o:p>=C2=A0</o:p></p>
        <p class=3D"MsoNormal">These days it is quite common in the IETF
          process to differentiate between document Authors and
          Contributors, especially when=C2=A0 many persons have been acti=
vely
          involved with development of the technical aspects of the
          document.=C2=A0 The number of Authors is usually limited to no =
more
          than 5, and their names appear on the title page of the
          document, while Contributors (if any) are only listed in a
          dedicated section within the document.<o:p></o:p></p>
        <p class=3D"MsoNormal">At the same time the Contributors have a
          well-defined role in the process, e.g. they must report about
          any non-disclosed IPR related to the document (or lack of any
          such IPR) both during adoption of the document as a WG
          document and also during the WG Last Call. <o:p></o:p></p>
        <p class=3D"MsoNormal"><o:p>=C2=A0</o:p></p>
        <p class=3D"MsoNormal">The draft mentioned Editors and Authors of=

          the document (and explains that these terms are
          interchangeable), but it does not mention Contributors at all.
          <o:p></o:p></p>
        <p class=3D"MsoNormal"><o:p>=C2=A0</o:p></p>
        <p class=3D"MsoNormal">I have raised this issue with the author o=
f
          the draft, and IMHO we have =E2=80=9Cagreed to disagree=E2=80=9D=
 on this
          point.</p>
      </div>
    </blockquote>
    <p><br>
    </p>
    <p>I think you are talking about Section 3.2.1, which in part reads:<=
/p>
    <p>
      <blockquote type=3D"cite">
        <pre class=3D"newpage">   This process is intended to be one of c=
ontinuous consultation.  RSAB
   members should consult with their constituent stakeholders (e.g.,
   authors, editors, tool developers, and consumers of RFCs) on an
   ongoing basis, so that when the time comes to consider the approval
   of a proposal, there should be no surprises.</pre>
      </blockquote>
    </p>
    <p>I don't think you should worry about whether contributors are
      listed at this time.=C2=A0 The IESG in particular tends to cast a w=
ide
      net on such consultations.=C2=A0 But if Lars thinks that won't be t=
he
      case here, we should consider adding the word =E2=80=9Ccontributors=
=E2=80=9D
      above, as I don't think it hurts anyone to do so.</p>
    <p>Eliot<br>
    </p>
    <br>
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-----END PGP SIGNATURE-----

--------------2rCxCBo3dkss8nl2fAPAwmW4--

