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-Size:12pt;=20font-family:=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91;=20word-wrap=
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From: Qiuyuanxiang <qiuyuanxiang@h3c.com>
To: "li_zhenqiang@hotmail.com" <li_zhenqiang@hotmail.com>, "Henderickx, Wim (Nokia - BE/Antwerp)" <wim.henderickx@nokia.com>, "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [spring] SRv6  compression
Thread-Index: AdeHhUV2I74G9jgvu0u2ICteTuLwOA==
Date: Mon, 2 Aug 2021 10:00:58 +0000
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Subject: Re: [spring] SRv6  compression
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<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;????&quot;,serif;color:black">Agree.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;????&quot;,serif;color:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;????&quot;,serif;color:black">As a vendor, we do hope to pick =
one solution to be standardized, to facilitate the network deployment.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;????&quot;,serif;color:black">Also, since the CSID has been im=
plemented by many vendors, I will suggest to adopt CSID.<o:p></o:p></span><=
/p>
<p class=3D"MsoNormal"><span lang=3D"EN" style=3D"font-size:10.5pt;font-fam=
ily:Consolas;color:#212529"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN" style=3D"font-size:10.5pt;font-fam=
ily:Consolas;color:#212529"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;????&quot;,serif;color:black">Best Regards,<o:p></o:p></span><=
/p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;????&quot;,serif;color:black">Yuanxiang Qiu<o:p></o:p></span><=
/p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></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"font-size:11.0pt;font-family:&quot=
;=CE=A2=C8=ED=D1=C5=BA=DA&quot;,sans-serif">=B7=A2=BC=FE=C8=CB<span lang=3D=
"EN-US">:</span></span></b><span lang=3D"EN-US" style=3D"font-size:11.0pt;f=
ont-family:&quot;=CE=A2=C8=ED=D1=C5=BA=DA&quot;,sans-serif"> spring [mailto=
:spring-bounces@ietf.org]
</span><b><span style=3D"font-size:11.0pt;font-family:&quot;=CE=A2=C8=ED=D1=
=C5=BA=DA&quot;,sans-serif">=B4=FA=B1=ED </span>
</b><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;=CE=A2=
=C8=ED=D1=C5=BA=DA&quot;,sans-serif">li_zhenqiang@hotmail.com<br>
</span><b><span style=3D"font-size:11.0pt;font-family:&quot;=CE=A2=C8=ED=D1=
=C5=BA=DA&quot;,sans-serif">=B7=A2=CB=CD=CA=B1=BC=E4<span lang=3D"EN-US">:<=
/span></span></b><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family=
:&quot;=CE=A2=C8=ED=D1=C5=BA=DA&quot;,sans-serif"> 2021</span><span style=
=3D"font-size:11.0pt;font-family:&quot;=CE=A2=C8=ED=D1=C5=BA=DA&quot;,sans-=
serif">=C4=EA<span lang=3D"EN-US">7</span>=D4=C2<span lang=3D"EN-US">31</sp=
an>=C8=D5<span lang=3D"EN-US">
 16:38<br>
</span><b>=CA=D5=BC=FE=C8=CB<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> Henderickx, Wim (Nokia - BE/Antwerp) &lt;wim.henderickx@nokia.com&g=
t;; spring@ietf.org<br>
</span><b>=D6=F7=CC=E2<span lang=3D"EN-US">:</span></b><span lang=3D"EN-US"=
> Re: [spring] SRv6 compression<o:p></o:p></span></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;????&quot;,serif;color:black">Agree. Picking 1 solution to sat=
isfy our requirements will benefit both the vendors and the operators.&nbsp=
;<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;????&quot;,serif;color:black"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;????&quot;,serif;color:black">Best Regards,<o:p></o:p></span><=
/p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;????&quot;,serif;color:black">Zhenqiang Li<o:p></o:p></span></=
p>
</div>
<div class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;fon=
t-family:&quot;????&quot;,serif;color:black">
<hr size=3D"1" width=3D"263" style=3D"width:157.5pt" noshade=3D"" style=3D"=
color:#B5C4DF" align=3D"left">
</span></div>
<div>
<div style=3D"margin-left:7.5pt;margin-top:7.5pt;margin-right:7.5pt;margin-=
bottom:7.5pt">
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-=
family:&quot;Verdana&quot;,sans-serif;color:black"><a href=3D"mailto:li_zhe=
nqiang@hotmail.com">li_zhenqiang@hotmail.com</a><o:p></o:p></span></p>
</div>
</div>
</div>
<blockquote style=3D"margin-left:6.0pt">
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;????&quot;,serif;color:black">&nbsp;<o:p></o:p></span></p>
</div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<div>
<div>
<p class=3D"MsoNormal" style=3D"background:#EFEFEF"><b><span lang=3D"EN-US"=
 style=3D"font-size:9.0pt;font-family:&quot;Tahoma&quot;,sans-serif;color:b=
lack">From:</span></b><span lang=3D"EN-US" style=3D"font-size:9.0pt;font-fa=
mily:&quot;Tahoma&quot;,sans-serif;color:black">&nbsp;<a href=3D"mailto:wim=
.henderickx@nokia.com">Henderickx,
 Wim (Nokia - BE/Antwerp)</a><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"background:#EFEFEF"><b><span lang=3D"EN-US"=
 style=3D"font-size:9.0pt;font-family:&quot;Tahoma&quot;,sans-serif;color:b=
lack">Date:</span></b><span lang=3D"EN-US" style=3D"font-size:9.0pt;font-fa=
mily:&quot;Tahoma&quot;,sans-serif;color:black">&nbsp;2021-07-27&nbsp;15:11=
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"background:#EFEFEF"><b><span lang=3D"EN-US"=
 style=3D"font-size:9.0pt;font-family:&quot;Tahoma&quot;,sans-serif;color:b=
lack">To:</span></b><span lang=3D"EN-US" style=3D"font-size:9.0pt;font-fami=
ly:&quot;Tahoma&quot;,sans-serif;color:black">&nbsp;<a href=3D"mailto:sprin=
g@ietf.org">spring@ietf.org</a><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"background:#EFEFEF"><b><span lang=3D"EN-US"=
 style=3D"font-size:9.0pt;font-family:&quot;Tahoma&quot;,sans-serif;color:b=
lack">Subject:</span></b><span lang=3D"EN-US" style=3D"font-size:9.0pt;font=
-family:&quot;Tahoma&quot;,sans-serif;color:black">&nbsp;[spring] SRv6
 compression<o:p></o:p></span></p>
</div>
</div>
</div>
<div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:black;mso-fareast-language:EN-G=
B">Given the design team accomplished the work on providing requirements an=
d analysis to compress an SRv6 SID list, I would
 recommend we pick 1 solution similar to what was done in NVO3 (when we dis=
cussed GENEVE, GUE, GPE, etc) given this has to be implemented in HW..</spa=
n><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;Calibri&=
quot;,sans-serif;color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:black;mso-fareast-language:EN-G=
B">&nbsp;</span><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:=
&quot;Calibri&quot;,sans-serif;color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:black;mso-fareast-language:EN-G=
B">I hope we can conclude on this asap and move forward on this topic&nbsp;=
</span><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;Cal=
ibri&quot;,sans-serif;color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:black;mso-fareast-language:EN-G=
B">&nbsp;</span><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:=
&quot;Calibri&quot;,sans-serif;color:black"><o:p></o:p></span></p>
</div>
</div>
</blockquote>
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<span style=3D"font-size:7.5pt;font-family:=BB=AA=CE=C4=CF=B8=BA=DA;color:g=
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From: Kentaro Ebisawa <ebiken.g@gmail.com>
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I really appreciate the hard work accomplished by the DT members.

As a user and implementer, I would also agree that it's preferred to pick a single solution so we can focus the effort to improve and standardize the selected solution.

Thanks,

-- 
Kentaro Ebisawa | Mailing List: <ebiken.g@gmail.com> | Work: <ebisawa@toyota-tokyo.tech>

On 2021/07/27 16:11, Henderickx, Wim (Nokia - BE/Antwerp) wrote:
>
> Given the design team accomplished the work on providing requirements and analysis to compress an SRv6 SID list, I would recommend we pick 1 solution similar to what was done in NVO3 (when we discussed GENEVE, GUE, GPE, etc) given this has to be implemented in HW..
>
> I hope we can conclude on this asap and move forward on this topic
>
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring


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    <br>
    I really appreciate the hard work accomplished by the DT members.<br>
    <br>
    As a user and implementer, I would also agree that it's preferred to
    pick a single solution so we can focus the effort to improve and
    standardize the selected solution.<br>
    <br>
    Thanks,<br>
    <pre class="moz-signature" cols="0">-- 
Kentaro Ebisawa | Mailing List: <a class="moz-txt-link-rfc2396E" href="mailto:ebiken.g@gmail.com">&lt;ebiken.g@gmail.com&gt;</a> | Work: <a class="moz-txt-link-rfc2396E" href="mailto:ebisawa@toyota-tokyo.tech">&lt;ebisawa@toyota-tokyo.tech&gt;</a></pre>
    <div class="moz-cite-prefix">On 2021/07/27 16:11, Henderickx, Wim
      (Nokia - BE/Antwerp) wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:AM0PR07MB44978A05B5BFCD3A0A79FD2D83E99@AM0PR07MB4497.eurprd07.prod.outlook.com">
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        <p class="MsoNormal"><span
            style="color:black;mso-fareast-language:EN-GB" lang="EN-US">Given
            the design team accomplished the work on providing
            requirements and analysis
          </span><span style="color:black;mso-fareast-language:EN-GB">to
            compress an SRv6 SID list</span><span
            style="color:black;mso-fareast-language:EN-GB" lang="EN-US">,
            I would recommend we pick 1 solution similar to what was
            done in NVO3 (when we discussed GENEVE, GUE, GPE, etc) given
            this has to be implemented in HW..<o:p></o:p></span></p>
        <p class="MsoNormal"><span
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        <p class="MsoNormal"><span
            style="color:black;mso-fareast-language:EN-GB" lang="EN-US">I
            hope we can conclude on this asap and move forward on this
            topic</span><span
            style="color:black;mso-fareast-language:EN-GB"> </span><span
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      <pre class="moz-quote-pre" wrap="">_______________________________________________
spring mailing list
<a class="moz-txt-link-abbreviated" href="mailto:spring@ietf.org">spring@ietf.org</a>
<a class="moz-txt-link-freetext" href="https://www.ietf.org/mailman/listinfo/spring">https://www.ietf.org/mailman/listinfo/spring</a>
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<body lang=3D"ZH-CN" link=3D"#0563C1" vlink=3D"#954F72" style=3D"word-wrap:=
break-word">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-family:&quot;=CE=
=A2=C8=ED=D1=C5=BA=DA&quot;,&quot;sans-serif&quot;;color:black">Hi all<o:p>=
</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-family:&quot;=CE=
=A2=C8=ED=D1=C5=BA=DA&quot;,&quot;sans-serif&quot;;color:black"><o:p>&nbsp;=
</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-family:&quot;=CE=
=A2=C8=ED=D1=C5=BA=DA&quot;,&quot;sans-serif&quot;;color:black">I support t=
he WGLC of the draft.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-family:&quot;=CE=
=A2=C8=ED=D1=C5=BA=DA&quot;,&quot;sans-serif&quot;;color:black">It is very =
helpful in Performance Measurement (PM), bidirectional paths correlation, a=
nd<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-family:&quot;=CE=
=A2=C8=ED=D1=C5=BA=DA&quot;,&quot;sans-serif&quot;;color:black">end-to-end =
1&#43;1 path protection.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-family:&quot;=CE=
=A2=C8=ED=D1=C5=BA=DA&quot;,&quot;sans-serif&quot;;color:black">Thanks<o:p>=
</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-family:&quot;=CE=
=A2=C8=ED=D1=C5=BA=DA&quot;,&quot;sans-serif&quot;;color:black">Changwang<o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-family:&quot;=CE=
=A2=C8=ED=D1=C5=BA=DA&quot;,&quot;sans-serif&quot;;color:black"><o:p>&nbsp;=
</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;font-family:=CB=
=CE=CC=E5">=B7=A2=BC=FE=C8=CB<span lang=3D"EN-US">:</span></span></b><span =
lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:=CB=CE=CC=E5"> spring =
[mailto:spring-bounces@ietf.org]
</span><b><span style=3D"font-size:10.0pt;font-family:=CB=CE=CC=E5">=B4=FA=
=B1=ED </span></b><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-famil=
y:=CB=CE=CC=E5">James Guichard<br>
</span><b><span style=3D"font-size:10.0pt;font-family:=CB=CE=CC=E5">=B7=A2=
=CB=CD=CA=B1=BC=E4<span lang=3D"EN-US">:</span></span></b><span lang=3D"EN-=
US" style=3D"font-size:10.0pt;font-family:=CB=CE=CC=E5"> 2021</span><span s=
tyle=3D"font-size:10.0pt;font-family:=CB=CE=CC=E5">=C4=EA<span lang=3D"EN-U=
S">7</span>=D4=C2<span lang=3D"EN-US">22</span>=C8=D5<span lang=3D"EN-US">
 21:03<br>
</span><b>=CA=D5=BC=FE=C8=CB<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> James Guichard; spring@ietf.org<br>
</span><b>=B3=AD=CB=CD<span lang=3D"EN-US">:</span></b><span lang=3D"EN-US"=
> spring-chairs@ietf.org<br>
</span><b>=D6=F7=CC=E2<span lang=3D"EN-US">:</span></b><span lang=3D"EN-US"=
> Re: [spring] WGLC for https://datatracker.ietf.org/doc/draft-ietf-spring-=
mpls-path-segment/<o:p></o:p></span></span></p>
</div>
</div>
<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">Dear WG:<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">The WGLC for this document will=
 be extended for a further 2 weeks ending August 4<sup>th</sup> 2021 so tha=
t feedback can be obtained from the WG. Other than the authors there has be=
en little input so please respond on
 the mailing list with any comments etc. <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"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><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">From:</span></b><span lang=
=3D"EN-US"> James Guichard &lt;james.n.guichard@futurewei.com&gt;
<br>
<b>Sent:</b> Wednesday, July 7, 2021 11:49 AM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> WGLC for https://datatracker.ietf.org/doc/draft-ietf-spring=
-mpls-path-segment/<o:p></o:p></span></p>
</div>
</div>
<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">Dear WG:<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">This email starts a 2 week Work=
ing Group Last Call for draft-ietf-spring-mpls-path-segment [1].<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 read this document if yo=
u haven=A1=AFt read the most recent version and send your comments to the S=
PRING WG list no later than July 21<sup>st</sup> 2021.
<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" style=3D"color:#212529">If you =
are raising a point which you expect will be specifically debated on the ma=
iling list, consider using a specific email/thread for this point.<o:p></o:=
p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#212529"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#212529">Lastly,=
 if you are an author or contributor please response to indicate whether yo=
u know of any undisclosed IPR related to this document.
<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"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Jim, Joel &amp; Bruno<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" style=3D"background:white"><span lang=3D"EN-US" styl=
e=3D"color:black">[1]
<a href=3D"https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2=
F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-ietf-spring-mpls-path-segment%2F&amp=
;data=3D04%7C01%7Cjames.n.guichard%40futurewei.com%7C4336eaaa34f543cc4c9e08=
d9415ebd06%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637612697462524718%=
7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWw=
iLCJXVCI6Mn0%3D%7C1000&amp;sdata=3Dv18Zntmw18jYiIXCNMDa7bYNQMZ90U29GVEkuPh5=
CjE%3D&amp;reserved=3D0">
https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/</a><o=
:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"background:white"><span lang=3D"EN-US"><o:p=
>&nbsp;</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"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
<span style=3D"font-size:7.5pt;font-family:=BB=AA=CE=C4=CF=B8=BA=DA;color:g=
ray"><span lang=3D"EN-US">-------------------------------------------------=
---------------------------------------------------------------------------=
---------<br>
</span>=B1=BE=D3=CA=BC=FE=BC=B0=C6=E4=B8=BD=BC=FE=BA=AC=D3=D0=D0=C2=BB=AA=
=C8=FD=BC=AF=CD=C5=B5=C4=B1=A3=C3=DC=D0=C5=CF=A2=A3=AC=BD=F6=CF=DE=D3=DA=B7=
=A2=CB=CD=B8=F8=C9=CF=C3=E6=B5=D8=D6=B7=D6=D0=C1=D0=B3=F6<span lang=3D"EN-U=
S"><br>
</span>=B5=C4=B8=F6=C8=CB=BB=F2=C8=BA=D7=E9=A1=A3=BD=FB=D6=B9=C8=CE=BA=CE=
=C6=E4=CB=FB=C8=CB=D2=D4=C8=CE=BA=CE=D0=CE=CA=BD=CA=B9=D3=C3=A3=A8=B0=FC=C0=
=A8=B5=AB=B2=BB=CF=DE=D3=DA=C8=AB=B2=BF=BB=F2=B2=BF=B7=D6=B5=D8=D0=B9=C2=B6=
=A1=A2=B8=B4=D6=C6=A1=A2<span lang=3D"EN-US"><br>
</span>=BB=F2=C9=A2=B7=A2=A3=A9=B1=BE=D3=CA=BC=FE=D6=D0=B5=C4=D0=C5=CF=A2=
=A1=A3=C8=E7=B9=FB=C4=FA=B4=ED=CA=D5=C1=CB=B1=BE=D3=CA=BC=FE=A3=AC=C7=EB=C4=
=FA=C1=A2=BC=B4=B5=E7=BB=B0=BB=F2=D3=CA=BC=FE=CD=A8=D6=AA=B7=A2=BC=FE=C8=CB=
=B2=A2=C9=BE=B3=FD=B1=BE<span lang=3D"EN-US"><br>
</span>=D3=CA=BC=FE=A3=A1<span lang=3D"EN-US"><br>
</span></span><span lang=3D"EN-US" style=3D"font-size:7.5pt;font-family:&qu=
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From: linchangwang <linchangwang.04414@h3c.com>
To: "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [spring] SRv6  compression
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Date: Mon, 2 Aug 2021 11:41:59 +0000
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<body lang=3D"ZH-CN" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"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">Excellent work done by DT in th=
e past year!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Many thanks for DT's hard work =
completing SRv6 header compression requirements and solutions comparion.<o:=
p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">I hop the solution is the one t=
hat has been implemented by the most vendors in the world, which is CSID.
<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">Best Regards,<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Changwang <o:p></o:p></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp=
;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp=
;</o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;font-family:=CB=
=CE=CC=E5">=B7=A2=BC=FE=C8=CB<span lang=3D"EN-US">:</span></span></b><span =
lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:=CB=CE=CC=E5"> spring =
[mailto:spring-bounces@ietf.org]
</span><b><span style=3D"font-size:10.0pt;font-family:=CB=CE=CC=E5">=B4=FA=
=B1=ED </span></b><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-famil=
y:=CB=CE=CC=E5">li_zhenqiang@hotmail.com<br>
</span><b><span style=3D"font-size:10.0pt;font-family:=CB=CE=CC=E5">=B7=A2=
=CB=CD=CA=B1=BC=E4<span lang=3D"EN-US">:</span></span></b><span lang=3D"EN-=
US" style=3D"font-size:10.0pt;font-family:=CB=CE=CC=E5"> 2021</span><span s=
tyle=3D"font-size:10.0pt;font-family:=CB=CE=CC=E5">=C4=EA<span lang=3D"EN-U=
S">7</span>=D4=C2<span lang=3D"EN-US">31</span>=C8=D5<span lang=3D"EN-US">
 16:38<br>
</span><b>=CA=D5=BC=FE=C8=CB<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> Henderickx, Wim (Nokia - BE/Antwerp); spring@ietf.org<br>
</span><b>=D6=F7=CC=E2<span lang=3D"EN-US">:</span></b><span lang=3D"EN-US"=
> Re: [spring] SRv6 compression<o:p></o:p></span></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;????&quot;,&quot;serif&quot;;color:black">Agree. Picking 1 sol=
ution to satisfy our requirements will benefit both the vendors and the ope=
rators.&nbsp;<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;????&quot;,&quot;serif&quot;;color:black"><o:p>&nbsp;</o:p></s=
pan></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;????&quot;,&quot;serif&quot;;color:black">Best Regards,<o:p></=
o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;????&quot;,&quot;serif&quot;;color:black">Zhenqiang Li<o:p></o=
:p></span></p>
</div>
<div class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;fon=
t-family:&quot;????&quot;,&quot;serif&quot;;color:black">
<hr size=3D"1" width=3D"210" style=3D"width:157.5pt" noshade=3D"" style=3D"=
color:#B5C4DF" align=3D"left">
</span></div>
<div>
<div style=3D"margin-left:7.5pt;margin-top:7.5pt;margin-right:7.5pt;margin-=
bottom:7.5pt">
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-=
family:&quot;Verdana&quot;,&quot;sans-serif&quot;;color:black">li_zhenqiang=
@hotmail.com<o:p></o:p></span></p>
</div>
</div>
</div>
<blockquote style=3D"margin-left:6.0pt">
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;????&quot;,&quot;serif&quot;;color:black">&nbsp;<o:p></o:p></s=
pan></p>
</div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<div>
<div>
<p class=3D"MsoNormal" style=3D"background:#EFEFEF"><b><span lang=3D"EN-US"=
 style=3D"font-size:9.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&q=
uot;;color:black">From:</span></b><span lang=3D"EN-US" style=3D"font-size:9=
.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;color:black">&nb=
sp;<a href=3D"mailto:wim.henderickx@nokia.com">Henderickx,
 Wim (Nokia - BE/Antwerp)</a><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"background:#EFEFEF"><b><span lang=3D"EN-US"=
 style=3D"font-size:9.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&q=
uot;;color:black">Date:</span></b><span lang=3D"EN-US" style=3D"font-size:9=
.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;color:black">&nb=
sp;2021-07-27&nbsp;15:11<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"background:#EFEFEF"><b><span lang=3D"EN-US"=
 style=3D"font-size:9.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&q=
uot;;color:black">To:</span></b><span lang=3D"EN-US" style=3D"font-size:9.0=
pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;color:black">&nbsp=
;<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><o:p></o:p></span></=
p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"background:#EFEFEF"><b><span lang=3D"EN-US"=
 style=3D"font-size:9.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&q=
uot;;color:black">Subject:</span></b><span lang=3D"EN-US" style=3D"font-siz=
e:9.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;color:black">=
&nbsp;[spring]
 SRv6 compression<o:p></o:p></span></p>
</div>
</div>
</div>
<div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:black;mso-fareast-l=
anguage:EN-GB">Given the design team accomplished the work on providing req=
uirements and analysis to compress an SRv6 SID list, I would
 recommend we pick 1 solution similar to what was done in NVO3 (when we dis=
cussed GENEVE, GUE, GPE, etc) given this has to be implemented in HW..</spa=
n><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;Calibri&=
quot;,&quot;sans-serif&quot;;color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:black;mso-fareast-l=
anguage:EN-GB">&nbsp;</span><span lang=3D"EN-US" style=3D"font-size:11.0pt;=
font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:black"><o:p></=
o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:black;mso-fareast-l=
anguage:EN-GB">I hope we can conclude on this asap and move forward on this=
 topic&nbsp;</span><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-fami=
ly:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:black"><o:p></o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:black;mso-fareast-l=
anguage:EN-GB">&nbsp;</span><span lang=3D"EN-US" style=3D"font-size:11.0pt;=
font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:black"><o:p></=
o:p></span></p>
</div>
</div>
</blockquote>
</div>
<span style=3D"font-size:7.5pt;font-family:=BB=AA=CE=C4=CF=B8=BA=DA;color:g=
ray"><span lang=3D"EN-US">-------------------------------------------------=
---------------------------------------------------------------------------=
---------<br>
</span>=B1=BE=D3=CA=BC=FE=BC=B0=C6=E4=B8=BD=BC=FE=BA=AC=D3=D0=D0=C2=BB=AA=
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From nobody Mon Aug  2 20:06:07 2021
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From: "Dongjie (Jimmy)" <jie.dong@huawei.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
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References: <MN2PR13MB42062237391D7BE769359D30D21A9@MN2PR13MB4206.namprd13.prod.outlook.com> <MN2PR13MB42069709E689629DF389F860D2E49@MN2PR13MB4206.namprd13.prod.outlook.com>
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I support the publication of this document.

It provides useful functionality for several use cases and there are implem=
entations and deployments.

Best regards,
Jie

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of James Guichard
Sent: Thursday, July 22, 2021 9:03 PM
To: James Guichard <james.n.guichard@futurewei.com>; spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: Re: [spring] WGLC for https://datatracker.ietf.org/doc/draft-ietf-=
spring-mpls-path-segment/

Dear WG:

The WGLC for this document will be extended for a further 2 weeks ending Au=
gust 4th 2021 so that feedback can be obtained from the WG. Other than the =
authors there has been little input so please respond on the mailing list w=
ith any comments etc.

Thanks!

Jim, Joel & Bruno

From: James Guichard <james.n.guichard@futurewei.com<mailto:james.n.guichar=
d@futurewei.com>>
Sent: Wednesday, July 7, 2021 11:49 AM
To: spring@ietf.org<mailto:spring@ietf.org>
Cc: spring-chairs@ietf.org<mailto:spring-chairs@ietf.org>
Subject: WGLC for https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-p=
ath-segment/

Dear WG:

This email starts a 2 week Working Group Last Call for draft-ietf-spring-mp=
ls-path-segment [1].

Please read this document if you haven't read the most recent version and s=
end your comments to the SPRING WG list no later than July 21st 2021.

If you are raising a point which you expect will be specifically debated on=
 the mailing list, consider using a specific email/thread for this point.

Lastly, if you are an author or contributor please response to indicate whe=
ther you know of any undisclosed IPR related to this document.

Thanks!

Jim, Joel & Bruno

[1] https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/<h=
ttps://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fdatatrac=
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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">I support the publication of this document.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">It provides useful functionality for several use cases and there =
are implementations and deployments.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">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">Jie<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><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">From:</span></b><span lang=
=3D"EN-US"> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> Thursday, July 22, 2021 9:03 PM<br>
<b>To:</b> James Guichard &lt;james.n.guichard@futurewei.com&gt;; spring@ie=
tf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> Re: [spring] WGLC for https://datatracker.ietf.org/doc/draf=
t-ietf-spring-mpls-path-segment/<o:p></o:p></span></p>
</div>
</div>
<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">Dear WG:<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">The WGLC for this document will=
 be extended for a further 2 weeks ending August 4<sup>th</sup> 2021 so tha=
t feedback can be obtained from the WG. Other than the authors there has be=
en little input so please respond on
 the mailing list with any comments etc. <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"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><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">From:</span></b><span lang=
=3D"EN-US"> James Guichard &lt;<a href=3D"mailto:james.n.guichard@futurewei=
.com">james.n.guichard@futurewei.com</a>&gt;
<br>
<b>Sent:</b> Wednesday, July 7, 2021 11:49 AM<br>
<b>To:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><br>
<b>Cc:</b> <a href=3D"mailto:spring-chairs@ietf.org">spring-chairs@ietf.org=
</a><br>
<b>Subject:</b> WGLC for <a href=3D"https://datatracker.ietf.org/doc/draft-=
ietf-spring-mpls-path-segment/">
https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/</a><o=
:p></o:p></span></p>
</div>
</div>
<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">Dear WG:<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">This email starts a 2 week Work=
ing Group Last Call for draft-ietf-spring-mpls-path-segment [1].<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 read this document if yo=
u haven&#8217;t read the most recent version and send your comments to the =
SPRING WG list no later than July 21<sup>st</sup> 2021.
<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" style=3D"color:#212529">If you =
are raising a point which you expect will be specifically debated on the ma=
iling list, consider using a specific email/thread for this point.<o:p></o:=
p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#212529"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#212529">Lastly,=
 if you are an author or contributor please response to indicate whether yo=
u know of any undisclosed IPR related to this document.
<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"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Jim, Joel &amp; Bruno<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" style=3D"background:white"><span lang=3D"EN-US" styl=
e=3D"color:black">[1]
<a href=3D"https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2=
F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-ietf-spring-mpls-path-segment%2F&amp=
;data=3D04%7C01%7Cjames.n.guichard%40futurewei.com%7C4336eaaa34f543cc4c9e08=
d9415ebd06%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637612697462524718%=
7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWw=
iLCJXVCI6Mn0%3D%7C1000&amp;sdata=3Dv18Zntmw18jYiIXCNMDa7bYNQMZ90U29GVEkuPh5=
CjE%3D&amp;reserved=3D0">
https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/</a><o=
:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"background:white"><span lang=3D"EN-US"><o:p=
>&nbsp;</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"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
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</html>

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From: Andrew Alston <Andrew.Alston@liquidtelecom.com>
To: Qiuyuanxiang <qiuyuanxiang@h3c.com>, "li_zhenqiang@hotmail.com" <li_zhenqiang@hotmail.com>, "Henderickx, Wim (Nokia - BE/Antwerp)" <wim.henderickx@nokia.com>, "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [spring] SRv6  compression
Thread-Index: AdeHhUV2I74G9jgvu0u2ICteTuLwOAAqDZhg
Date: Tue, 3 Aug 2021 06:12:57 +0000
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Subject: Re: [spring] SRv6  compression
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From: Vasilenko Eduard <vasilenko.eduard@huawei.com>
To: Andrew Alston <Andrew.Alston=40liquidtelecom.com@dmarc.ietf.org>, "li_zhenqiang@hotmail.com" <li_zhenqiang@hotmail.com>, "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [spring] SRv6  compression
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Date: Tue, 3 Aug 2021 10:49:30 +0000
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Subject: Re: [spring] SRv6  compression
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From nobody Tue Aug  3 06:44:00 2021
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From: Martin Horneffer <maho@lab.dtag.de>
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Many thanks to the DT for the good and thorough work(1)!

And many thanks to Wim for bringing this thread to the list.

My view as an operator is:
We already have more than enough standards and options. Often enough 
actually introducing new technology in a multi-vendor environment is a 
pain because not all vendors implement the same option at the same time, 
and rather have different understandings of the overall architecture and 
of priorities.
Thus I'd really suggest do proceeed with just a single solution.

If I got it right, one vendor and one operator intend to continue with 
CRH independently of segment routing. That is of course perfectly 
legitimate. From my perspective it's still a pity because we won't pull 
together. And the vendor will - from my perspective - waste development 
energy on technology that will never be useful for my enviroment.

Best regards,
Martin

P.S.:
(1) The requirement I suggested in April, concerning Number Resource 
Management, apparently didn't make it into the documents. But if I get 
it right, the overall reesults wouldn't have changed.



Am 27.07.21 um 09:11 schrieb Henderickx, Wim (Nokia - BE/Antwerp):
> Given the design team accomplished the work on providing requirements 
> and analysis to compress an SRv6 SID list, I would recommend we pick 1 
> solution similar to what was done in NVO3 (when we discussed GENEVE, 
> GUE, GPE, etc) given this has to be implemented in HW..
> 
> I hope we can conclude on this asap and move forward on this topic
> 
> 
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
> 


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Date: Tue, 03 Aug 2021 16:48:59 +0300
From: "Ville Hallivuori" <vph@iki.fi>
To: spring@ietf.org
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Subject: Re: [spring] SRv6 compression
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--e392eea3ab5b4940be21c32c2680173c
Content-Type: text/plain;charset=utf-8
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Hello,

I would strongly prefer a single solution. While I am not particular on =
which of the solutions is selected, DT does make compelling argument for=
 CSID.

I work for a vendor and would hate to have to implement multiple differe=
nt header compression schemes. Especially if it comes out of limited mic=
rocode resources. While IETF has a long history of having two competing =
solutions (LDP/RSVP-TE, OSPF/ISIS), having competing options in forwardi=
ng plane is even less desirable than it is on the control plane.

Thanks for the DT for their excellent work.

BR,
Ville Hallivuori

On Sat, 31 Jul 2021, at 00:06, Voyer, Daniel wrote:
> I agree as well =E2=80=93 DT spent a year to come up with an analysis =
and now have a conclusion. In my view, we are ready to move with a singl=
e standard solution. This will unlock the vendors community to adopt an =
SRv6 compression standard and allow operators to move forward.
> =20
> At the end of the analysis document, CSID seems to be the clear winner=
.
> =20
> Thanks
> dan
> =20
> *From: *spring <spring-bounces@ietf.org> on behalf of Eduard Metz <etm=
etz@gmail.com>
> *Date: *Friday, July 30, 2021 at 7:24 AM
> *To: *Gyan Mishra <hayabusagsm@gmail.com>
> *Cc: *"Rabadan, Jorge (Nokia - US/Mountain View)" <jorge.rabadan@nokia=
.com>, "Aissaoui, Mustapha (Nokia - CA/Ottawa)" <mustapha.aissaoui@nokia=
.com>, "spring@ietf.org" <spring@ietf.org>, Wim Henderickx <wim.henderic=
kx@nokia.com>
> *Subject: *[EXT]Re: [spring] SRv6 compression
> =20
> Agree.
> The DT has done a great job in the analysis.=20
> =20
> Moving forward with a single, standards track solution is preferred/re=
quired for interoperable SRv6 implementations.
> =20
> cheers,
>   Eduard
> =20
> =20
> On Tue, Jul 27, 2021 at 6:09 PM Gyan Mishra <hayabusagsm@gmail.com> wr=
ote:
>> =20
>> For all operators around the world looking at deployment of SRv6 comp=
ression and being in a  holding pattern waiting for SRv6 compression to =
be standardized by the IETF. =20
>> =20
>> Given the ubiquitous importance of SRV6 compression and MSD issues wi=
th long strict SR-TE explicit route object,  it is critical for interope=
rability for all steering use cases that exist today: enterprise, intern=
et, private, access network - 5G wireless xHaul, mobile core, wireline, =
MBB, FBB.=20
>> =20
>> We as a WG need a single standardized solution for SRv6 compression f=
or interoperability to work and all vendors marching to the same sheet o=
f music. =20
>> =20
>> I agree that the NVO3 - GENEVE is a solid precedence path forward to =
take and for Spring WG to come to consensus and standardize on one solut=
ion and progress the other solutions as informational if implementations=
 already exist.
>> =20
>> Kind Regards=20
>> =20
>> Gyan=20
>> Verizon Inc
>> =20
>> On Tue, Jul 27, 2021 at 10:12 AM Aissaoui, Mustapha (Nokia - CA/Ottaw=
a) <mustapha.aissaoui@nokia.com> wrote:
>>> Same here. We want a single standard method of SID compression to al=
low the WG to focus on finalizing it and get vendors hardware implementa=
tions updated.
>>> =20
>>> Regards,
>>> Mustapha.
>>> =20
>>> *From:* spring <spring-bounces@ietf.org> *On Behalf Of *Rabadan, Jor=
ge (Nokia - US/Mountain View)
>>> *Sent:* Tuesday, July 27, 2021 4:54 AM
>>> *To:* Henderickx, Wim (Nokia - BE/Antwerp) <wim.henderickx@nokia.com=
>; spring@ietf.org
>>> *Subject:* Re: [spring] SRv6 compression
>>> =20
>>> I agree with Wim=E2=80=99s statement that the precedent in NVO3 **co=
uld** apply here too: pick one solution as Standard=E2=80=99s track RFC,=
 and once it is done, the others might be documented as Informational RF=
Cs if they have implementations.
>>> =20
>>> That would help the industry to move forward.
>>> =20
>>> Thanks.
>>> Jorge
>>> =20
>>> =20
>>> *From: *spring <spring-bounces@ietf.org> on behalf of Henderickx, Wi=
m (Nokia - BE/Antwerp) <wim.henderickx@nokia.com>
>>> *Date: *Tuesday, July 27, 2021 at 9:11 AM
>>> *To: *spring@ietf.org <spring@ietf.org>
>>> *Subject: *[spring] SRv6 compression
>>> Given the design team accomplished the work on providing requirement=
s and analysis to compress an SRv6 SID list, I would recommend we pick 1=
 solution similar to what was done in NVO3 (when we discussed GENEVE, GU=
E, GPE, etc) given this has to be implemented in HW..
>>> =20
>>> I hope we can conclude on this asap and move forward on this topic=20=

>>> =20
>>> _______________________________________________
>>> spring mailing list
>>> spring@ietf.org
>>> https://www.ietf.org/mailman/listinfo/spring
>>>=20
>> --
 <http://www.verizon.com/>
>>=20
>> *Gyan Mishra*
>>=20
>> *Network Solutions Architect *
>>=20
>> *Email gyan.s.mishra@verizon.com*
>>=20
>> *M 301 502-1347*
>>=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



--e392eea3ab5b4940be21c32c2680173c
Content-Type: text/html;charset=utf-8
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE html><html><head><title></title><style type=3D"text/css">#qt p=
.qt-MsoNormal{margin-top:0cm;margin-right:0cm;margin-bottom:0cm;margin-l=
eft:0cm;font-size:11pt;font-family:Calibri, sans-serif;}
#qt a:link{color:blue;text-decoration-line:underline;text-decoration-thi=
ckness:initial;text-decoration-style:initial;text-decoration-color:initi=
al;}

p.MsoNormal,p.MsoNoSpacing{margin:0}</style></head><body><div style=3D"f=
ont-family:Arial;">Hello,<br></div><div style=3D"font-family:Arial;"><br=
></div><div style=3D"font-family:Arial;">I would strongly prefer a singl=
e solution. While I am not particular on which of the solutions is selec=
ted, DT does make compelling argument for CSID.<br></div><div style=3D"f=
ont-family:Arial;"><br></div><div style=3D"font-family:Arial;">I work fo=
r a vendor and would hate to have to implement multiple different header=
 compression schemes.&nbsp;<span style=3D"color:var(--ui-page-color-fg);=
">Especially if it comes out of limited microcode resources. While IETF =
has a long history of having two competing solutions (LDP/RSVP-TE, OSPF/=
ISIS), having competing options in forwarding plane is even less desirab=
le than it is on the control plane.</span><br></div><div style=3D"font-f=
amily:Arial;"><br></div><div style=3D"font-family:Arial;">Thanks for the=
 DT for their excellent work.</div><div style=3D"font-family:Arial;"><br=
></div><div style=3D"font-family:Arial;"><span style=3D"color:var(--ui-p=
age-color-fg);">BR,</span><br></div><div style=3D"font-family:Arial;"><s=
pan style=3D"color:var(--ui-page-color-fg);">Ville Hallivuori</span><br>=
</div><div style=3D"font-family:Arial;"><br></div><div>On Sat, 31 Jul 20=
21, at 00:06, Voyer, Daniel wrote:<br></div><blockquote type=3D"cite" id=
=3D"qt" style=3D"overflow-wrap:break-word;"><div class=3D"qt-WordSection=
1"><p class=3D"qt-MsoNormal">I agree as well =E2=80=93 DT spent a year t=
o come up with an analysis and now have a conclusion. In my view, we are=
 ready to move with a single standard solution. This will unlock the ven=
dors community to adopt an SRv6 compression standard and
 allow operators to move forward.<br></p><p class=3D"qt-MsoNormal">&nbsp=
;<br></p><p class=3D"qt-MsoNormal">At the end of the analysis document, =
CSID seems to be the clear winner.<br></p><p class=3D"qt-MsoNormal">&nbs=
p;<br></p><p class=3D"qt-MsoNormal">Thanks<br></p><p class=3D"qt-MsoNorm=
al">dan<br></p><p class=3D"qt-MsoNormal">&nbsp;<br></p><div style=3D"bor=
der-right-width:initial;border-bottom-width:initial;border-left-width:in=
itial;border-right-style:none;border-bottom-style:none;border-left-style=
:none;border-right-color:initial;border-bottom-color:initial;border-left=
-color:initial;border-image-source:initial;border-image-slice:initial;bo=
rder-image-width:initial;border-image-outset:initial;border-image-repeat=
:initial;border-top-width:1pt;border-top-style:solid;border-top-color:rg=
b(181, 196, 223);padding-top:3pt;padding-right:0cm;padding-bottom:0cm;pa=
dding-left:0cm;"><p class=3D"qt-MsoNormal"><b><span style=3D"color:black=
;"><span class=3D"size" style=3D"font-size:12pt;">From: </span></span></=
b><span style=3D"color:black;"><span class=3D"size" style=3D"font-size:1=
2pt;">spring &lt;spring-bounces@ietf.org&gt; on behalf of Eduard Metz &l=
t;etmetz@gmail.com&gt;<br> <b>Date: </b>Friday, July 30, 2021 at 7:24 AM=
<br> <b>To: </b>Gyan Mishra &lt;hayabusagsm@gmail.com&gt;<br> <b>Cc: </b=
>"Rabadan, Jorge (Nokia - US/Mountain View)" &lt;jorge.rabadan@nokia.com=
&gt;, "Aissaoui, Mustapha (Nokia - CA/Ottawa)" &lt;mustapha.aissaoui@nok=
ia.com&gt;, "spring@ietf.org" &lt;spring@ietf.org&gt;, Wim Henderickx &l=
t;wim.henderickx@nokia.com&gt;<br> <b>Subject: </b>[EXT]Re: [spring] SRv=
6 compression</span></span></p></div><div><p class=3D"qt-MsoNormal">&nbs=
p;<br></p></div><div><p class=3D"qt-MsoNormal">Agree.<br></p><div><p cla=
ss=3D"qt-MsoNormal">The DT has done a great job in the analysis.&nbsp;<b=
r></p></div><div><p class=3D"qt-MsoNormal">&nbsp;<br></p></div><div><p c=
lass=3D"qt-MsoNormal">Moving forward with a single, standards track&nbsp=
;solution is preferred/required for interoperable SRv6 implementations.<=
br></p></div><div><p class=3D"qt-MsoNormal">&nbsp;<br></p></div><div><p =
class=3D"qt-MsoNormal">cheers,<br></p></div><div><p class=3D"qt-MsoNorma=
l">&nbsp; Eduard<br></p></div><div><p class=3D"qt-MsoNormal">&nbsp;<br><=
/p></div></div><p class=3D"qt-MsoNormal">&nbsp;<br></p><div><div><p clas=
s=3D"qt-MsoNormal">On Tue, Jul 27, 2021 at 6:09 PM Gyan Mishra &lt;<a hr=
ef=3D"mailto:hayabusagsm@gmail.com">hayabusagsm@gmail.com</a>&gt; wrote:=
<br></p></div><blockquote style=3D"border-top-width:initial;border-right=
-width:initial;border-bottom-width:initial;border-top-style:none;border-=
right-style:none;border-bottom-style:none;border-top-color:initial;borde=
r-right-color:initial;border-bottom-color:initial;border-image-source:in=
itial;border-image-slice:initial;border-image-width:initial;border-image=
-outset:initial;border-image-repeat:initial;border-left-width:1pt;border=
-left-style:solid;border-left-color:rgb(204, 204, 204);padding-top:0cm;p=
adding-right:0cm;padding-bottom:0cm;padding-left:6pt;margin-left:4.8pt;m=
argin-right:0cm;"><div><p class=3D"qt-MsoNormal">&nbsp;<br></p></div><di=
v><p class=3D"qt-MsoNormal">For all operators around the world looking a=
t deployment of SRv6 compression and being in a &nbsp;holding pattern wa=
iting for SRv6 compression to be standardized by the IETF. &nbsp;<br></p=
></div><div><p class=3D"qt-MsoNormal">&nbsp;<br></p></div><div><p class=3D=
"qt-MsoNormal">Given the ubiquitous importance of SRV6 compression and M=
SD issues with long strict SR-TE explicit route object, &nbsp;it is crit=
ical for interoperability for all steering use cases that exist today: e=
nterprise, internet, private, access network
 - 5G wireless xHaul, mobile core, wireline, MBB, FBB.&nbsp;<br></p></di=
v><div><p class=3D"qt-MsoNormal">&nbsp;<br></p></div><div><p class=3D"qt=
-MsoNormal">We as a WG need a single standardized solution for SRv6 comp=
ression for interoperability to work and all vendors marching to the sam=
e sheet of music. &nbsp;<br></p></div><div><p class=3D"qt-MsoNormal">&nb=
sp;<br></p></div><div><p class=3D"qt-MsoNormal">I agree that the NVO3 - =
GENEVE is a solid precedence path forward to take and for Spring WG to c=
ome to consensus and standardize on one solution and progress the other =
solutions as informational if implementations already exist.<br></p></di=
v><div><p class=3D"qt-MsoNormal">&nbsp;<br></p></div><div><p class=3D"qt=
-MsoNormal">Kind Regards&nbsp;<br></p></div><div><p class=3D"qt-MsoNorma=
l">&nbsp;<br></p></div><div><p class=3D"qt-MsoNormal">Gyan&nbsp;<br></p>=
</div><div><p class=3D"qt-MsoNormal">Verizon Inc<br></p></div><div><p cl=
ass=3D"qt-MsoNormal">&nbsp;<br></p><div><div><p class=3D"qt-MsoNormal">O=
n Tue, Jul 27, 2021 at 10:12 AM Aissaoui, Mustapha (Nokia - CA/Ottawa) &=
lt;<a href=3D"mailto:mustapha.aissaoui@nokia.com" target=3D"_blank">must=
apha.aissaoui@nokia.com</a>&gt; wrote:<br></p></div><blockquote style=3D=
"border-top-width:initial;border-right-width:initial;border-bottom-width=
:initial;border-top-style:none;border-right-style:none;border-bottom-sty=
le:none;border-top-color:initial;border-right-color:initial;border-botto=
m-color:initial;border-image-source:initial;border-image-slice:initial;b=
order-image-width:initial;border-image-outset:initial;border-image-repea=
t:initial;border-left-width:1pt;border-left-style:solid;border-left-colo=
r:rgb(204, 204, 204);padding-top:0cm;padding-right:0cm;padding-bottom:0c=
m;padding-left:6pt;margin-left:4.8pt;margin-right:0cm;"><div><div><p cla=
ss=3D"qt-MsoNormal" style=3D""><span style=3D""><span class=3D"font" sty=
le=3D"font-family:Arial, sans-serif;"><span class=3D"size" style=3D"font=
-size:10pt;">Same here. We want a single standard method of SID compress=
ion to allow the WG to focus on finalizing it and get vendors
 hardware implementations updated.</span></span></span><br></p><p class=3D=
"qt-MsoNormal" style=3D""><span style=3D""><span class=3D"font" style=3D=
"font-family:Arial, sans-serif;"><span class=3D"size" style=3D"font-size=
:10pt;">&nbsp;</span></span></span><br></p><p class=3D"qt-MsoNormal" sty=
le=3D""><span style=3D""><span class=3D"font" style=3D"font-family:Arial=
, sans-serif;"><span class=3D"size" style=3D"font-size:10pt;">Regards,</=
span></span></span><br></p><p class=3D"qt-MsoNormal" style=3D""><span st=
yle=3D""><span class=3D"font" style=3D"font-family:Arial, sans-serif;"><=
span class=3D"size" style=3D"font-size:10pt;">Mustapha.</span></span></s=
pan><br></p><p class=3D"qt-MsoNormal" style=3D""><span style=3D""><span =
class=3D"font" style=3D"font-family:Arial, sans-serif;"><span class=3D"s=
ize" style=3D"font-size:10pt;">&nbsp;</span></span></span><br></p><div><=
div style=3D"border-right-width:initial;border-bottom-width:initial;bord=
er-left-width:initial;border-right-style:none;border-bottom-style:none;b=
order-left-style:none;border-right-color:initial;border-bottom-color:ini=
tial;border-left-color:initial;border-image-source:initial;border-image-=
slice:initial;border-image-width:initial;border-image-outset:initial;bor=
der-image-repeat:initial;border-top-width:1pt;border-top-style:solid;bor=
der-top-color:rgb(225, 225, 225);padding-top:3pt;padding-right:0cm;paddi=
ng-bottom:0cm;padding-left:0cm;"><p class=3D"qt-MsoNormal" style=3D""><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-bounc=
es@ietf.org</a>&gt; <b>On Behalf Of </b>Rabadan, Jorge (Nokia - US/Mount=
ain View)<br> <b>Sent:</b> Tuesday, July 27, 2021 4:54 AM<br> <b>To:</b>=
 Henderickx, Wim (Nokia - BE/Antwerp) &lt;<a href=3D"mailto:wim.henderic=
kx@nokia.com" target=3D"_blank">wim.henderickx@nokia.com</a>&gt;; <a hre=
f=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br> <=
b>Subject:</b> Re: [spring] SRv6 compression</span></p></div></div><p cl=
ass=3D"qt-MsoNormal" style=3D"">&nbsp;<br></p><p class=3D"qt-MsoNormal" =
style=3D""><span lang=3D"EN-US" style=3D""><span class=3D"font" style=3D=
"font-family:Consolas;"><span class=3D"size" style=3D"font-size:10.5pt;"=
>I agree with Wim=E2=80=99s statement that the precedent in NVO3 *<b>cou=
ld</b>* apply here too: pick one solution as Standard=E2=80=99s
 track RFC, and once it is done, the others might be documented as Infor=
mational RFCs if they have implementations.</span></span></span><br></p>=
</div></div><div><div><p class=3D"qt-MsoNormal" style=3D""><span lang=3D=
"EN-US" style=3D""><span class=3D"font" style=3D"font-family:Consolas;">=
<span class=3D"size" style=3D"font-size:10.5pt;">&nbsp;</span></span></s=
pan><br></p><p class=3D"qt-MsoNormal" style=3D""><span lang=3D"EN-US" st=
yle=3D""><span class=3D"font" style=3D"font-family:Consolas;"><span clas=
s=3D"size" style=3D"font-size:10.5pt;">That would help the industry to m=
ove forward.</span></span></span><br></p><p class=3D"qt-MsoNormal" style=
=3D""><span lang=3D"EN-US" style=3D""><span class=3D"font" style=3D"font=
-family:Consolas;"><span class=3D"size" style=3D"font-size:10.5pt;">&nbs=
p;</span></span></span><br></p><p class=3D"qt-MsoNormal" style=3D""><spa=
n lang=3D"EN-US" style=3D""><span class=3D"font" style=3D"font-family:Co=
nsolas;"><span class=3D"size" style=3D"font-size:10.5pt;">Thanks.</span>=
</span></span><br></p><p class=3D"qt-MsoNormal" style=3D""><span lang=3D=
"EN-US" style=3D""><span class=3D"font" style=3D"font-family:Consolas;">=
<span class=3D"size" style=3D"font-size:10.5pt;">Jorge</span></span></sp=
an><br></p><p class=3D"qt-MsoNormal" style=3D""><span lang=3D"EN-US" sty=
le=3D""><span class=3D"font" style=3D"font-family:Consolas;"><span class=
=3D"size" style=3D"font-size:10.5pt;">&nbsp;</span></span></span><br></p=
><p class=3D"qt-MsoNormal" style=3D""><span lang=3D"EN-US" style=3D""><s=
pan class=3D"font" style=3D"font-family:Consolas;"><span class=3D"size" =
style=3D"font-size:10.5pt;">&nbsp;</span></span></span><br></p><div styl=
e=3D"border-right-width:initial;border-bottom-width:initial;border-left-=
width:initial;border-right-style:none;border-bottom-style:none;border-le=
ft-style:none;border-right-color:initial;border-bottom-color:initial;bor=
der-left-color:initial;border-image-source:initial;border-image-slice:in=
itial;border-image-width:initial;border-image-outset:initial;border-imag=
e-repeat:initial;border-top-width:1pt;border-top-style:solid;border-top-=
color:rgb(181, 196, 223);padding-top:3pt;padding-right:0cm;padding-botto=
m:0cm;padding-left:0cm;"><p class=3D"qt-MsoNormal" style=3D"margin-botto=
m:12pt;margin-left:36pt;"><b><span lang=3D"EN-US" style=3D"color:black;"=
><span class=3D"size" style=3D"font-size:12pt;">From: </span></span></b>=
<span lang=3D"EN-US" style=3D"color:black;"><span class=3D"size" style=3D=
"font-size:12pt;">spring &lt;<a href=3D"mailto:spring-bounces@ietf.org" =
target=3D"_blank">spring-bounces@ietf.org</a>&gt; on behalf of Henderick=
x, Wim (Nokia
 - BE/Antwerp) &lt;<a href=3D"mailto:wim.henderickx@nokia.com" target=3D=
"_blank">wim.henderickx@nokia.com</a>&gt;<br> <b>Date: </b>Tuesday, July=
 27, 2021 at 9:11 AM<br> <b>To: </b><a href=3D"mailto:spring@ietf.org" t=
arget=3D"_blank">spring@ietf.org</a> &lt;<a href=3D"mailto:spring@ietf.o=
rg" target=3D"_blank">spring@ietf.org</a>&gt;<br> <b>Subject: </b>[sprin=
g] SRv6 compression</span></span></p></div><p class=3D"qt-MsoNormal" sty=
le=3D"margin-left:36pt;"><span lang=3D"EN-US" style=3D"color:black;">Giv=
en the design team accomplished the work on providing requirements and a=
nalysis to compress an SRv6 SID list, I would recommend we pick 1 soluti=
on similar to what was done in NVO3 (when we discussed GENEVE, GUE, GPE,=

 etc) given this has to be implemented in HW..</span><br></p><p class=3D=
"qt-MsoNormal" style=3D"margin-left:36pt;"><span lang=3D"EN-US" style=3D=
"color:black;">&nbsp;</span><br></p><p class=3D"qt-MsoNormal" style=3D"m=
argin-left:36pt;"><span lang=3D"EN-US" style=3D"color:black;">I hope we =
can conclude on this asap and move forward on this topic&nbsp;</span><br=
></p><p class=3D"qt-MsoNormal" style=3D"margin-left:36pt;"><span lang=3D=
"EN-US" style=3D"color:black;">&nbsp;</span><br></p></div></div><p class=
=3D"qt-MsoNormal"></p><div>_____________________________________________=
__<br></div><div> spring mailing list<br></div><div> <a href=3D"mailto:s=
pring@ietf.org" target=3D"_blank">spring@ietf.org</a><br></div><div> <a =
href=3D"https://www.ietf.org/mailman/listinfo/spring" target=3D"_blank">=
https://www.ietf.org/mailman/listinfo/spring</a><br></div><p></p></block=
quote></div></div><p class=3D"qt-MsoNormal">--<br></p><div><div><div><di=
v><div><div><div><div><div><p><span style=3D"color:rgb(34, 34, 34);"><a =
href=3D"http://www.verizon.com/" target=3D"_blank"><span style=3D"color:=
rgb(34, 34, 34);text-decoration-line:none;text-decoration-thickness:init=
ial;text-decoration-style:initial;text-decoration-color:initial;"><span =
style=3D"color:rgb(17, 85, 204);"><img border=3D"0" width=3D"81" height=3D=
"18" style=3D"width:0.8437in;height:0.1875in;" id=3D"qt-_x0000_i1025" sr=
c=3D"http://ss7.vzw.com/is/image/VerizonWireless/vz-logo-email"></span><=
/span></a></span><br></p><p style=3D"margin-top:0cm;margin-right:0cm;mar=
gin-bottom:0cm;margin-left:0cm;"><b><span style=3D"color:black;"><span c=
lass=3D"font" style=3D"font-family:Arial, sans-serif;">Gyan Mishra</span=
></span></b><span style=3D"color:black;"><span class=3D"font" style=3D"f=
ont-family:Arial, sans-serif;"></span></span><br></p><p style=3D"margin-=
top:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:0cm;"><i><span st=
yle=3D"color:black;"><span class=3D"font" style=3D"font-family:Georgia, =
serif;">Network Solutions Architect&nbsp;</span></span></i><span style=3D=
"color:rgb(34, 34, 34);"></span><br></p><p style=3D"margin-top:0cm;margi=
n-right:0cm;margin-bottom:0cm;margin-left:0cm;"><i><span style=3D"color:=
black;"><span class=3D"font" style=3D"font-family:Georgia, serif;"><span=
 class=3D"size" style=3D"font-size:10pt;">Email <a href=3D"mailto:gyan.s=
.mishra@verizon.com" target=3D"_blank">gyan.s.mishra@verizon.com</a></sp=
an></span></span></i><span style=3D"color:rgb(34, 34, 34);"></span><br><=
/p><p style=3D"margin-right:0cm;margin-bottom:12pt;margin-left:0cm;"><i>=
<span style=3D"color:black;"><span class=3D"font" style=3D"font-family:G=
eorgia, serif;">M 301 502-1347</span></span></i><span style=3D"color:bla=
ck;"></span><br></p></div><div><p class=3D"qt-MsoNormal">&nbsp;<br></p><=
/div></div></div></div></div></div></div></div></div><p class=3D"qt-MsoN=
ormal"></p><div>_______________________________________________<br></div=
><div> spring mailing list<br></div><div> <a href=3D"mailto:spring@ietf.=
org" target=3D"_blank">spring@ietf.org</a><br></div><div> <a href=3D"htt=
ps://www.ietf.org/mailman/listinfo/spring" target=3D"_blank">https://www=
.ietf.org/mailman/listinfo/spring</a><br></div><p></p></blockquote></div=
></div><div>_______________________________________________<br></div><di=
v>spring mailing list<br></div><div><a href=3D"mailto:spring@ietf.org">s=
pring@ietf.org</a><br></div><div><a href=3D"https://www.ietf.org/mailman=
/listinfo/spring">https://www.ietf.org/mailman/listinfo/spring</a><br></=
div><div><br></div></blockquote><div style=3D"font-family:Arial;"><br></=
div><div id=3D"sig1735058"><div class=3D"signature"><br></div></div><div=
 style=3D"font-family:Arial;"><br></div></body></html>
--e392eea3ab5b4940be21c32c2680173c--


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Subject: Re: [spring] SRv6  compression
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Hi all,

I have a bit of a different perspective.

Whatever solution is selected, it will be basically forever. Vendors =
will cut this into silicon. Quite literally set in stone. It will get =
deployed and there will be no turning back.
We should pick the best possible solution because we will have to live =
with it. Forever. That far surpasses the pain of having to replace =
whatever folks have deployed so far.

Thus, while I wish no one undue pain, the fact is that current =
deployment, popularity, and market share aren=E2=80=99t compelling =
reasons to make a selection.=20
We need the technically optimal solution.

Please choose carefully. Please choose wisely. Please choose for the =
very long haul.

Tony



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Subject: Re: [spring] SRv6 compression
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------=_Part_1510860_540533491.1628002827848
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 Hi all,
I do agree with the point that single solution is better than four of them =
in real multi-vendor network.From operator point of view it will be nightma=
re to deliver interop even with two different solutions from different vend=
ors.
There are issues even with single standardized thing as you may know.
Thus +1 for single compression solution.
SY,Boris=C2=A0

    On Tuesday, August 3, 2021, 04:50:42 PM GMT+3, Ville Hallivuori <vph@ik=
i.fi> wrote: =20
=20
 Hello,

I would strongly prefer a single solution. While I am not particular on whi=
ch of the solutions is selected, DT does make compelling argument for CSID.

I work for a vendor and would hate to have to implement multiple different =
header compression schemes.=C2=A0Especially if it comes out of limited micr=
ocode resources. While IETF has a long history of having two competing solu=
tions (LDP/RSVP-TE, OSPF/ISIS), having competing options in forwarding plan=
e is even less desirable than it is on the control plane.

Thanks for the DT for their excellent work.
BR,
Ville Hallivuori

On Sat, 31 Jul 2021, at 00:06, Voyer, Daniel wrote:


I agree as well =E2=80=93 DT spent a year to come up with an analysis and n=
ow have a conclusion. In my view, we are ready to move with a single standa=
rd solution. This will unlock the vendors community to adopt an SRv6 compre=
ssion standard and allow operators to move forward.


=C2=A0


At the end of the analysis document, CSID seems to be the clear winner.


=C2=A0


Thanks


dan


=C2=A0


From: spring <spring-bounces@ietf.org> on behalf of Eduard Metz <etmetz@gma=
il.com>
 Date: Friday, July 30, 2021 at 7:24 AM
 To: Gyan Mishra <hayabusagsm@gmail.com>
 Cc: "Rabadan, Jorge (Nokia - US/Mountain View)" <jorge.rabadan@nokia.com>,=
 "Aissaoui, Mustapha (Nokia - CA/Ottawa)" <mustapha.aissaoui@nokia.com>, "s=
pring@ietf.org" <spring@ietf.org>, Wim Henderickx <wim.henderickx@nokia.com=
>
 Subject: [EXT]Re: [spring] SRv6 compression

=C2=A0


Agree.


The DT has done a great job in the analysis.=C2=A0


=C2=A0


Moving forward with a single, standards track=C2=A0solution is preferred/re=
quired for interoperable SRv6 implementations.


=C2=A0


cheers,


=C2=A0 Eduard


=C2=A0


=C2=A0


On Tue, Jul 27, 2021 at 6:09 PM Gyan Mishra <hayabusagsm@gmail.com> wrote:



=C2=A0


For all operators around the world looking at deployment of SRv6 compressio=
n and being in a =C2=A0holding pattern waiting for SRv6 compression to be s=
tandardized by the IETF. =C2=A0


=C2=A0


Given the ubiquitous importance of SRV6 compression and MSD issues with lon=
g strict SR-TE explicit route object, =C2=A0it is critical for interoperabi=
lity for all steering use cases that exist today: enterprise, internet, pri=
vate, access network - 5G wireless xHaul, mobile core, wireline, MBB, FBB.=
=C2=A0


=C2=A0


We as a WG need a single standardized solution for SRv6 compression for int=
eroperability to work and all vendors marching to the same sheet of music. =
=C2=A0


=C2=A0


I agree that the NVO3 - GENEVE is a solid precedence path forward to take a=
nd for Spring WG to come to consensus and standardize on one solution and p=
rogress the other solutions as informational if implementations already exi=
st.


=C2=A0


Kind Regards=C2=A0


=C2=A0


Gyan=C2=A0


Verizon Inc


=C2=A0


On Tue, Jul 27, 2021 at 10:12 AM Aissaoui, Mustapha (Nokia - CA/Ottawa) <mu=
stapha.aissaoui@nokia.com> wrote:



Same here. We want a single standard method of SID compression to allow the=
 WG to focus on finalizing it and get vendors hardware implementations upda=
ted.


=C2=A0


Regards,


Mustapha.


=C2=A0


From: spring <spring-bounces@ietf.org> On Behalf Of Rabadan, Jorge (Nokia -=
 US/Mountain View)
 Sent: Tuesday, July 27, 2021 4:54 AM
 To: Henderickx, Wim (Nokia - BE/Antwerp) <wim.henderickx@nokia.com>; sprin=
g@ietf.org
 Subject: Re: [spring] SRv6 compression

=C2=A0


I agree with Wim=E2=80=99s statement that the precedent in NVO3 *could* app=
ly here too: pick one solution as Standard=E2=80=99s track RFC, and once it=
 is done, the others might be documented as Informational RFCs if they have=
 implementations.


=C2=A0


That would help the industry to move forward.


=C2=A0


Thanks.


Jorge


=C2=A0


=C2=A0


From: spring <spring-bounces@ietf.org> on behalf of Henderickx, Wim (Nokia =
- BE/Antwerp) <wim.henderickx@nokia.com>
 Date: Tuesday, July 27, 2021 at 9:11 AM
 To: spring@ietf.org <spring@ietf.org>
 Subject: [spring] SRv6 compression

Given the design team accomplished the work on providing requirements and a=
nalysis to compress an SRv6 SID list, I would recommend we pick 1 solution =
similar to what was done in NVO3 (when we discussed GENEVE, GUE, GPE, etc) =
given this has to be implemented in HW..


=C2=A0


I hope we can conclude on this asap and move forward on this topic=C2=A0


=C2=A0



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




--





Gyan Mishra


Network Solutions Architect=C2=A0


Email gyan.s.mishra@verizon.com


M 301 502-1347


=C2=A0



_______________________________________________
 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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https://www.ietf.org/mailman/listinfo/spring
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<html><head></head><body><div class=3D"ydp8e0ca1a8yahoo-style-wrap" style=
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3px;"><div></div>
        <div dir=3D"ltr" data-setdir=3D"false">Hi all,</div><div dir=3D"ltr=
" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">I =
do agree with the point that single solution is better than four of them in=
 real multi-vendor network.</div><div dir=3D"ltr" data-setdir=3D"false">Fro=
m operator point of view it will be nightmare to deliver interop even with =
two different solutions from different vendors.</div><div dir=3D"ltr" data-=
setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">There are=
 issues even with single standardized thing as you may know.</div><div dir=
=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"fa=
lse">Thus +1 for single compression solution.</div><div dir=3D"ltr" data-se=
tdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">SY,</div><d=
iv dir=3D"ltr" data-setdir=3D"false">Boris&nbsp;</div><div dir=3D"ltr" data=
-setdir=3D"false"><br></div><div><br></div>
       =20
        </div><div id=3D"ydp66c07e71yahoo_quoted_8928659738" class=3D"ydp66=
c07e71yahoo_quoted">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
               =20
                <div>
                    On Tuesday, August 3, 2021, 04:50:42 PM GMT+3, Ville Ha=
llivuori &lt;vph@iki.fi&gt; wrote:
                </div>
                <div><br></div>
                <div><br></div>
                <div><div id=3D"ydp66c07e71yiv0061627377"><div><div style=
=3D"font-family:Arial;">Hello,<br clear=3D"none"></div><div style=3D"font-f=
amily:Arial;"><br clear=3D"none"></div><div style=3D"font-family:Arial;">I =
would strongly prefer a single solution. While I am not particular on which=
 of the solutions is selected, DT does make compelling argument for CSID.<b=
r clear=3D"none"></div><div style=3D"font-family:Arial;"><br clear=3D"none"=
></div><div style=3D"font-family:Arial;">I work for a vendor and would hate=
 to have to implement multiple different header compression schemes.&nbsp;<=
span>Especially if it comes out of limited microcode resources. While IETF =
has a long history of having two competing solutions (LDP/RSVP-TE, OSPF/ISI=
S), having competing options in forwarding plane is even less desirable tha=
n it is on the control plane.</span><br clear=3D"none"></div><div style=3D"=
font-family:Arial;"><br clear=3D"none"></div><div style=3D"font-family:Aria=
l;">Thanks for the DT for their excellent work.</div><div style=3D"font-fam=
ily:Arial;"><br clear=3D"none"></div><div style=3D"font-family:Arial;"><spa=
n>BR,</span><br clear=3D"none"></div><div style=3D"font-family:Arial;"><spa=
n>Ville Hallivuori</span><br clear=3D"none"></div><div style=3D"font-family=
:Arial;"><br clear=3D"none"></div><div class=3D"ydp66c07e71yiv0061627377yqt=
3788845006" id=3D"ydp66c07e71yiv0061627377yqt44283"><div>On Sat, 31 Jul 202=
1, at 00:06, Voyer, Daniel wrote:<br clear=3D"none"></div><blockquote id=3D=
"ydp66c07e71yiv0061627377qt" type=3D"cite"><div class=3D"ydp66c07e71yiv0061=
627377qt-WordSection1"><p class=3D"ydp66c07e71yiv0061627377qt-MsoNormal">I =
agree as well =E2=80=93 DT spent a year to come up with an analysis and now=
 have a conclusion. In my view, we are ready to move with a single standard=
 solution. This will unlock the vendors community to adopt an SRv6 compress=
ion standard and
 allow operators to move forward.<br clear=3D"none"></p><p class=3D"ydp66c0=
7e71yiv0061627377qt-MsoNormal">&nbsp;<br clear=3D"none"></p><p class=3D"ydp=
66c07e71yiv0061627377qt-MsoNormal">At the end of the analysis document, CSI=
D seems to be the clear winner.<br clear=3D"none"></p><p class=3D"ydp66c07e=
71yiv0061627377qt-MsoNormal">&nbsp;<br clear=3D"none"></p><p class=3D"ydp66=
c07e71yiv0061627377qt-MsoNormal">Thanks<br clear=3D"none"></p><p class=3D"y=
dp66c07e71yiv0061627377qt-MsoNormal">dan<br clear=3D"none"></p><p class=3D"=
ydp66c07e71yiv0061627377qt-MsoNormal">&nbsp;<br clear=3D"none"></p><div sty=
le=3D"border-right-width:initial;border-bottom-width:initial;border-left-wi=
dth:initial;border-right-style:none;border-bottom-style:none;border-left-st=
yle:none;border-right-color:initial;border-bottom-color:initial;border-left=
-color:initial;border-top-width:1pt;border-top-style:solid;border-top-color=
:rgb(181, 196, 223);padding-top:3pt;padding-right:0cm;padding-bottom:0cm;pa=
dding-left:0cm;"><p class=3D"ydp66c07e71yiv0061627377qt-MsoNormal"><b><span=
 style=3D"color:black;"><span class=3D"ydp66c07e71yiv0061627377size" style=
=3D"font-size:12pt;">From: </span></span></b><span style=3D"color:black;"><=
span class=3D"ydp66c07e71yiv0061627377size" style=3D"font-size:12pt;">sprin=
g &lt;spring-bounces@ietf.org&gt; on behalf of Eduard Metz &lt;etmetz@gmail=
.com&gt;<br clear=3D"none"> <b>Date: </b>Friday, July 30, 2021 at 7:24 AM<b=
r clear=3D"none"> <b>To: </b>Gyan Mishra &lt;hayabusagsm@gmail.com&gt;<br c=
lear=3D"none"> <b>Cc: </b>"Rabadan, Jorge (Nokia - US/Mountain View)" &lt;j=
orge.rabadan@nokia.com&gt;, "Aissaoui, Mustapha (Nokia - CA/Ottawa)" &lt;mu=
stapha.aissaoui@nokia.com&gt;, "spring@ietf.org" &lt;spring@ietf.org&gt;, W=
im Henderickx &lt;wim.henderickx@nokia.com&gt;<br clear=3D"none"> <b>Subjec=
t: </b>[EXT]Re: [spring] SRv6 compression</span></span></p></div><div><p cl=
ass=3D"ydp66c07e71yiv0061627377qt-MsoNormal">&nbsp;<br clear=3D"none"></p><=
/div><div><p class=3D"ydp66c07e71yiv0061627377qt-MsoNormal">Agree.<br clear=
=3D"none"></p><div><p class=3D"ydp66c07e71yiv0061627377qt-MsoNormal">The DT=
 has done a great job in the analysis.&nbsp;<br clear=3D"none"></p></div><d=
iv><p class=3D"ydp66c07e71yiv0061627377qt-MsoNormal">&nbsp;<br clear=3D"non=
e"></p></div><div><p class=3D"ydp66c07e71yiv0061627377qt-MsoNormal">Moving =
forward with a single, standards track&nbsp;solution is preferred/required =
for interoperable SRv6 implementations.<br clear=3D"none"></p></div><div><p=
 class=3D"ydp66c07e71yiv0061627377qt-MsoNormal">&nbsp;<br clear=3D"none"></=
p></div><div><p class=3D"ydp66c07e71yiv0061627377qt-MsoNormal">cheers,<br c=
lear=3D"none"></p></div><div><p class=3D"ydp66c07e71yiv0061627377qt-MsoNorm=
al">&nbsp; Eduard<br clear=3D"none"></p></div><div><p class=3D"ydp66c07e71y=
iv0061627377qt-MsoNormal">&nbsp;<br clear=3D"none"></p></div></div><p class=
=3D"ydp66c07e71yiv0061627377qt-MsoNormal">&nbsp;<br clear=3D"none"></p><div=
><div><p class=3D"ydp66c07e71yiv0061627377qt-MsoNormal">On Tue, Jul 27, 202=
1 at 6:09 PM Gyan Mishra &lt;<a shape=3D"rect" href=3D"mailto:hayabusagsm@g=
mail.com" target=3D"_blank" rel=3D"noreferrer noopener">hayabusagsm@gmail.c=
om</a>&gt; wrote:<br clear=3D"none"></p></div><blockquote style=3D"border-t=
op-width:initial;border-right-width:initial;border-bottom-width:initial;bor=
der-top-style:none;border-right-style:none;border-bottom-style:none;border-=
top-color:initial;border-right-color:initial;border-bottom-color:initial;bo=
rder-left-width:1pt;border-left-style:solid;border-left-color:rgb(204, 204,=
 204);padding-top:0cm;padding-right:0cm;padding-bottom:0cm;padding-left:6pt=
;margin-left:4.8pt;margin-right:0cm;"><div><p class=3D"ydp66c07e71yiv006162=
7377qt-MsoNormal">&nbsp;<br clear=3D"none"></p></div><div><p class=3D"ydp66=
c07e71yiv0061627377qt-MsoNormal">For all operators around the world looking=
 at deployment of SRv6 compression and being in a &nbsp;holding pattern wai=
ting for SRv6 compression to be standardized by the IETF. &nbsp;<br clear=
=3D"none"></p></div><div><p class=3D"ydp66c07e71yiv0061627377qt-MsoNormal">=
&nbsp;<br clear=3D"none"></p></div><div><p class=3D"ydp66c07e71yiv006162737=
7qt-MsoNormal">Given the ubiquitous importance of SRV6 compression and MSD =
issues with long strict SR-TE explicit route object, &nbsp;it is critical f=
or interoperability for all steering use cases that exist today: enterprise=
, internet, private, access network
 - 5G wireless xHaul, mobile core, wireline, MBB, FBB.&nbsp;<br clear=3D"no=
ne"></p></div><div><p class=3D"ydp66c07e71yiv0061627377qt-MsoNormal">&nbsp;=
<br clear=3D"none"></p></div><div><p class=3D"ydp66c07e71yiv0061627377qt-Ms=
oNormal">We as a WG need a single standardized solution for SRv6 compressio=
n for interoperability to work and all vendors marching to the same sheet o=
f music. &nbsp;<br clear=3D"none"></p></div><div><p class=3D"ydp66c07e71yiv=
0061627377qt-MsoNormal">&nbsp;<br clear=3D"none"></p></div><div><p class=3D=
"ydp66c07e71yiv0061627377qt-MsoNormal">I agree that the NVO3 - GENEVE is a =
solid precedence path forward to take and for Spring WG to come to consensu=
s and standardize on one solution and progress the other solutions as infor=
mational if implementations already exist.<br clear=3D"none"></p></div><div=
><p class=3D"ydp66c07e71yiv0061627377qt-MsoNormal">&nbsp;<br clear=3D"none"=
></p></div><div><p class=3D"ydp66c07e71yiv0061627377qt-MsoNormal">Kind Rega=
rds&nbsp;<br clear=3D"none"></p></div><div><p class=3D"ydp66c07e71yiv006162=
7377qt-MsoNormal">&nbsp;<br clear=3D"none"></p></div><div><p class=3D"ydp66=
c07e71yiv0061627377qt-MsoNormal">Gyan&nbsp;<br clear=3D"none"></p></div><di=
v><p class=3D"ydp66c07e71yiv0061627377qt-MsoNormal">Verizon Inc<br clear=3D=
"none"></p></div><div><p class=3D"ydp66c07e71yiv0061627377qt-MsoNormal">&nb=
sp;<br clear=3D"none"></p><div><div><p class=3D"ydp66c07e71yiv0061627377qt-=
MsoNormal">On Tue, Jul 27, 2021 at 10:12 AM Aissaoui, Mustapha (Nokia - CA/=
Ottawa) &lt;<a shape=3D"rect" href=3D"mailto:mustapha.aissaoui@nokia.com" t=
arget=3D"_blank" rel=3D"noreferrer noopener">mustapha.aissaoui@nokia.com</a=
>&gt; wrote:<br clear=3D"none"></p></div><blockquote style=3D"border-top-wi=
dth:initial;border-right-width:initial;border-bottom-width:initial;border-t=
op-style:none;border-right-style:none;border-bottom-style:none;border-top-c=
olor:initial;border-right-color:initial;border-bottom-color:initial;border-=
left-width:1pt;border-left-style:solid;border-left-color:rgb(204, 204, 204)=
;padding-top:0cm;padding-right:0cm;padding-bottom:0cm;padding-left:6pt;marg=
in-left:4.8pt;margin-right:0cm;"><div><div><p class=3D"ydp66c07e71yiv006162=
7377qt-MsoNormal"><span><span class=3D"ydp66c07e71yiv0061627377font" style=
=3D"font-family:Arial, sans-serif;"><span class=3D"ydp66c07e71yiv0061627377=
size" style=3D"font-size:10pt;">Same here. We want a single standard method=
 of SID compression to allow the WG to focus on finalizing it and get vendo=
rs
 hardware implementations updated.</span></span></span><br clear=3D"none"><=
/p><p class=3D"ydp66c07e71yiv0061627377qt-MsoNormal"><span><span class=3D"y=
dp66c07e71yiv0061627377font" style=3D"font-family:Arial, sans-serif;"><span=
 class=3D"ydp66c07e71yiv0061627377size" style=3D"font-size:10pt;">&nbsp;</s=
pan></span></span><br clear=3D"none"></p><p class=3D"ydp66c07e71yiv00616273=
77qt-MsoNormal"><span><span class=3D"ydp66c07e71yiv0061627377font" style=3D=
"font-family:Arial, sans-serif;"><span class=3D"ydp66c07e71yiv0061627377siz=
e" style=3D"font-size:10pt;">Regards,</span></span></span><br clear=3D"none=
"></p><p class=3D"ydp66c07e71yiv0061627377qt-MsoNormal"><span><span class=
=3D"ydp66c07e71yiv0061627377font" style=3D"font-family:Arial, sans-serif;">=
<span class=3D"ydp66c07e71yiv0061627377size" style=3D"font-size:10pt;">Must=
apha.</span></span></span><br clear=3D"none"></p><p class=3D"ydp66c07e71yiv=
0061627377qt-MsoNormal"><span><span class=3D"ydp66c07e71yiv0061627377font" =
style=3D"font-family:Arial, sans-serif;"><span class=3D"ydp66c07e71yiv00616=
27377size" style=3D"font-size:10pt;">&nbsp;</span></span></span><br clear=
=3D"none"></p><div><div style=3D"border-right-width:initial;border-bottom-w=
idth:initial;border-left-width:initial;border-right-style:none;border-botto=
m-style:none;border-left-style:none;border-right-color:initial;border-botto=
m-color:initial;border-left-color:initial;border-top-width:1pt;border-top-s=
tyle:solid;border-top-color:rgb(225, 225, 225);padding-top:3pt;padding-righ=
t:0cm;padding-bottom:0cm;padding-left:0cm;"><p class=3D"ydp66c07e71yiv00616=
27377qt-MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=3D"EN=
-US"> spring &lt;<a shape=3D"rect" href=3D"mailto:spring-bounces@ietf.org" =
target=3D"_blank" rel=3D"noreferrer noopener">spring-bounces@ietf.org</a>&g=
t; <b>On Behalf Of </b>Rabadan, Jorge (Nokia - US/Mountain View)<br clear=
=3D"none"> <b>Sent:</b> Tuesday, July 27, 2021 4:54 AM<br clear=3D"none"> <=
b>To:</b> Henderickx, Wim (Nokia - BE/Antwerp) &lt;<a shape=3D"rect" href=
=3D"mailto:wim.henderickx@nokia.com" target=3D"_blank" rel=3D"noreferrer no=
opener">wim.henderickx@nokia.com</a>&gt;; <a shape=3D"rect" href=3D"mailto:=
spring@ietf.org" target=3D"_blank" rel=3D"noreferrer noopener">spring@ietf.=
org</a><br clear=3D"none"> <b>Subject:</b> Re: [spring] SRv6 compression</s=
pan></p></div></div><p class=3D"ydp66c07e71yiv0061627377qt-MsoNormal">&nbsp=
;<br clear=3D"none"></p><p class=3D"ydp66c07e71yiv0061627377qt-MsoNormal"><=
span lang=3D"EN-US"><span class=3D"ydp66c07e71yiv0061627377font" style=3D"f=
ont-family:Consolas;"><span class=3D"ydp66c07e71yiv0061627377size" style=3D=
"font-size:10.5pt;">I agree with Wim=E2=80=99s statement that the precedent=
 in NVO3 *<b>could</b>* apply here too: pick one solution as Standard=E2=80=
=99s
 track RFC, and once it is done, the others might be documented as Informat=
ional RFCs if they have implementations.</span></span></span><br clear=3D"n=
one"></p></div></div><div><div><p class=3D"ydp66c07e71yiv0061627377qt-MsoNo=
rmal"><span lang=3D"EN-US"><span class=3D"ydp66c07e71yiv0061627377font" sty=
le=3D"font-family:Consolas;"><span class=3D"ydp66c07e71yiv0061627377size" s=
tyle=3D"font-size:10.5pt;">&nbsp;</span></span></span><br clear=3D"none"></=
p><p class=3D"ydp66c07e71yiv0061627377qt-MsoNormal"><span lang=3D"EN-US"><s=
pan class=3D"ydp66c07e71yiv0061627377font" style=3D"font-family:Consolas;">=
<span class=3D"ydp66c07e71yiv0061627377size" style=3D"font-size:10.5pt;">Th=
at would help the industry to move forward.</span></span></span><br clear=
=3D"none"></p><p class=3D"ydp66c07e71yiv0061627377qt-MsoNormal"><span lang=
=3D"EN-US"><span class=3D"ydp66c07e71yiv0061627377font" style=3D"font-famil=
y:Consolas;"><span class=3D"ydp66c07e71yiv0061627377size" style=3D"font-siz=
e:10.5pt;">&nbsp;</span></span></span><br clear=3D"none"></p><p class=3D"yd=
p66c07e71yiv0061627377qt-MsoNormal"><span lang=3D"EN-US"><span class=3D"ydp=
66c07e71yiv0061627377font" style=3D"font-family:Consolas;"><span class=3D"y=
dp66c07e71yiv0061627377size" style=3D"font-size:10.5pt;">Thanks.</span></sp=
an></span><br clear=3D"none"></p><p class=3D"ydp66c07e71yiv0061627377qt-Mso=
Normal"><span lang=3D"EN-US"><span class=3D"ydp66c07e71yiv0061627377font" s=
tyle=3D"font-family:Consolas;"><span class=3D"ydp66c07e71yiv0061627377size"=
 style=3D"font-size:10.5pt;">Jorge</span></span></span><br clear=3D"none"><=
/p><p class=3D"ydp66c07e71yiv0061627377qt-MsoNormal"><span lang=3D"EN-US"><=
span class=3D"ydp66c07e71yiv0061627377font" style=3D"font-family:Consolas;"=
><span class=3D"ydp66c07e71yiv0061627377size" style=3D"font-size:10.5pt;">&=
nbsp;</span></span></span><br clear=3D"none"></p><p class=3D"ydp66c07e71yiv=
0061627377qt-MsoNormal"><span lang=3D"EN-US"><span class=3D"ydp66c07e71yiv0=
061627377font" style=3D"font-family:Consolas;"><span class=3D"ydp66c07e71yi=
v0061627377size" style=3D"font-size:10.5pt;">&nbsp;</span></span></span><br=
 clear=3D"none"></p><div style=3D"border-right-width:initial;border-bottom-=
width:initial;border-left-width:initial;border-right-style:none;border-bott=
om-style:none;border-left-style:none;border-right-color:initial;border-bott=
om-color:initial;border-left-color:initial;border-top-width:1pt;border-top-=
style:solid;border-top-color:rgb(181, 196, 223);padding-top:3pt;padding-rig=
ht:0cm;padding-bottom:0cm;padding-left:0cm;"><p class=3D"ydp66c07e71yiv0061=
627377qt-MsoNormal" style=3D"margin-bottom:12pt;margin-left:36pt;"><b><span=
 lang=3D"EN-US" style=3D"color:black;"><span class=3D"ydp66c07e71yiv0061627=
377size" style=3D"font-size:12pt;">From: </span></span></b><span lang=3D"EN=
-US" style=3D"color:black;"><span class=3D"ydp66c07e71yiv0061627377size" st=
yle=3D"font-size:12pt;">spring &lt;<a shape=3D"rect" href=3D"mailto:spring-=
bounces@ietf.org" target=3D"_blank" rel=3D"noreferrer noopener">spring-boun=
ces@ietf.org</a>&gt; on behalf of Henderickx, Wim (Nokia
 - BE/Antwerp) &lt;<a shape=3D"rect" href=3D"mailto:wim.henderickx@nokia.co=
m" target=3D"_blank" rel=3D"noreferrer noopener">wim.henderickx@nokia.com</=
a>&gt;<br clear=3D"none"> <b>Date: </b>Tuesday, July 27, 2021 at 9:11 AM<br=
 clear=3D"none"> <b>To: </b><a shape=3D"rect" href=3D"mailto:spring@ietf.or=
g" target=3D"_blank" rel=3D"noreferrer noopener">spring@ietf.org</a> &lt;<a=
 shape=3D"rect" href=3D"mailto:spring@ietf.org" target=3D"_blank" rel=3D"no=
referrer noopener">spring@ietf.org</a>&gt;<br clear=3D"none"> <b>Subject: <=
/b>[spring] SRv6 compression</span></span></p></div><p class=3D"ydp66c07e71=
yiv0061627377qt-MsoNormal" style=3D"margin-left:36pt;"><span lang=3D"EN-US"=
 style=3D"color:black;">Given the design team accomplished the work on prov=
iding requirements and analysis to compress an SRv6 SID list, I would recom=
mend we pick 1 solution similar to what was done in NVO3 (when we discussed=
 GENEVE, GUE, GPE,
 etc) given this has to be implemented in HW..</span><br clear=3D"none"></p=
><p class=3D"ydp66c07e71yiv0061627377qt-MsoNormal" style=3D"margin-left:36p=
t;"><span lang=3D"EN-US" style=3D"color:black;">&nbsp;</span><br clear=3D"n=
one"></p><p class=3D"ydp66c07e71yiv0061627377qt-MsoNormal" style=3D"margin-=
left:36pt;"><span lang=3D"EN-US" style=3D"color:black;">I hope we can concl=
ude on this asap and move forward on this topic&nbsp;</span><br clear=3D"no=
ne"></p><p class=3D"ydp66c07e71yiv0061627377qt-MsoNormal" style=3D"margin-l=
eft:36pt;"><span lang=3D"EN-US" style=3D"color:black;">&nbsp;</span><br cle=
ar=3D"none"></p></div></div><p class=3D"ydp66c07e71yiv0061627377qt-MsoNorma=
l"></p><div>_______________________________________________<br clear=3D"non=
e"></div><div> spring mailing list<br clear=3D"none"></div><div> <a shape=
=3D"rect" href=3D"mailto:spring@ietf.org" target=3D"_blank" rel=3D"noreferr=
er noopener">spring@ietf.org</a><br clear=3D"none"></div><div> <a shape=3D"=
rect" href=3D"https://www.ietf.org/mailman/listinfo/spring" target=3D"_blan=
k" rel=3D"noreferrer noopener">https://www.ietf.org/mailman/listinfo/spring=
</a><br clear=3D"none"></div><p></p></blockquote></div></div><p class=3D"yd=
p66c07e71yiv0061627377qt-MsoNormal">--<br clear=3D"none"></p><div><div><div=
><div><div><div><div><div><div><p><span style=3D"color:rgb(34, 34, 34);"><a=
 shape=3D"rect" href=3D"http://www.verizon.com/" target=3D"_blank" rel=3D"n=
oreferrer noopener"><span style=3D"color:rgb(34, 34, 34);text-decoration-li=
ne:none;text-decoration-style:initial;text-decoration-color:initial;"><span=
 style=3D"color:rgb(17, 85, 204);"><img id=3D"ydp66c07e71yiv0061627377qt-_x=
0000_i1025" border=3D"0" width=3D"81" height=3D"18" style=3D"width:0.8437in=
;min-height:0.1875in;" src=3D"http://ss7.vzw.com/is/image/VerizonWireless/v=
z-logo-email" data-inlineimagemanipulating=3D"true"></span></span></a></spa=
n><br clear=3D"none"></p><p style=3D"margin-top:0cm;margin-right:0cm;margin=
-bottom:0cm;margin-left:0cm;"><b><span style=3D"color:black;"><span class=
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From: Robert Raszuk <robert@raszuk.net>
Date: Tue, 3 Aug 2021 17:27:12 +0200
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To: Tony Li <tony.li@tony.li>
Cc: Vasilenko Eduard <vasilenko.eduard@huawei.com>, "spring@ietf.org" <spring@ietf.org>,  "li_zhenqiang@hotmail.com" <li_zhenqiang@hotmail.com>,  Andrew Alston <Andrew.Alston=40liquidtelecom.com@dmarc.ietf.org>
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Subject: Re: [spring] SRv6 compression
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Hi Tony,

I beg to differ on the "forever" part. Which forwarding technology well
maybe other then IPv6 is lasting forever. Take ATM, take FR, take even
MPLS.

It seems that whatever is most widely deployed and supported today is good
choice for squeezing just a bit more SRv6 header. CSID seems the be a clear
winner which market and big vendors decided to adopt.

I am questioning the "forever" part specifically based on control plane
proposal I published to accomplish many similar objectives with no SRH at
all - ultimate SRH compression :) Can't beat that.

Cheers,
Robert.


On Tue, Aug 3, 2021 at 4:55 PM Tony Li <tony.li@tony.li> wrote:

>
> Hi all,
>
> I have a bit of a different perspective.
>
> Whatever solution is selected, it will be basically forever. Vendors will
> cut this into silicon. Quite literally set in stone. It will get deployed
> and there will be no turning back.
> We should pick the best possible solution because we will have to live
> with it. Forever. That far surpasses the pain of having to replace whatev=
er
> folks have deployed so far.
>
> Thus, while I wish no one undue pain, the fact is that current deployment=
,
> popularity, and market share aren=E2=80=99t compelling reasons to make a =
selection.
> We need the technically optimal solution.
>
> Please choose carefully. Please choose wisely. Please choose for the very
> long haul.
>
> Tony
>
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

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<div dir=3D"ltr">Hi Tony,<br><div><br></div><div>I beg to=C2=A0differ on th=
e &quot;forever&quot; part. Which forwarding technology well maybe other th=
en IPv6 is lasting=C2=A0forever. Take ATM, take FR, take even MPLS.=C2=A0</=
div><div><br></div><div>It seems that whatever is most widely deployed and =
supported today is good choice for squeezing just a bit more SRv6 header. C=
SID seems the be a clear winner which market and big vendors decided to ado=
pt.</div><div><br></div><div>I am questioning the &quot;forever&quot; part =
specifically based on control plane proposal I published to accomplish many=
 similar objectives with no SRH at all - ultimate SRH compression :) Can&#3=
9;t beat that.=C2=A0</div><div><br></div><div>Cheers,</div><div>Robert.</di=
v><div><br></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" clas=
s=3D"gmail_attr">On Tue, Aug 3, 2021 at 4:55 PM Tony Li &lt;<a href=3D"mail=
to:tony.li@tony.li">tony.li@tony.li</a>&gt; wrote:<br></div><blockquote cla=
ss=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid =
rgb(204,204,204);padding-left:1ex"><br>
Hi all,<br>
<br>
I have a bit of a different perspective.<br>
<br>
Whatever solution is selected, it will be basically forever. Vendors will c=
ut this into silicon. Quite literally set in stone. It will get deployed an=
d there will be no turning back.<br>
We should pick the best possible solution because we will have to live with=
 it. Forever. That far surpasses the pain of having to replace whatever fol=
ks have deployed so far.<br>
<br>
Thus, while I wish no one undue pain, the fact is that current deployment, =
popularity, and market share aren=E2=80=99t compelling reasons to make a se=
lection. <br>
We need the technically optimal solution.<br>
<br>
Please choose carefully. Please choose wisely. Please choose for the very l=
ong haul.<br>
<br>
Tony<br>
<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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Hi Robert,


> I beg to differ on the "forever" part. Which forwarding technology =
well maybe other then IPv6 is lasting forever. Take ATM, take FR, take =
even MPLS.=20


How about IPv4?

It=E2=80=99s very true that link layers can fall out of popularity. Yet =
the hardware lives on.  I have hardware that forwards CLNS, IPX, and =
Token Ring. I don=E2=80=99t have a use for it, but if I did, it still =
works.


> I am questioning the "forever" part specifically based on control =
plane proposal I published to accomplish many similar objectives with no =
SRH at all - ultimate SRH compression :) Can't beat that.=20


Yes, new proposals can obsolete things.  That=E2=80=99s ok, that=E2=80=99s=
 the normal evolution of technology. =20

The point that I=E2=80=99m trying to make is that what we=E2=80=99re =
doing might well take off.  If it does, we will be stuck with it for a =
very long time indeed.

Steve Deering, the father of IPv6, said it was specifically designed to =
last only 20 years, becuse we would need to change the network layer =
that frequently as we learned things.  He said that 30 years ago.

Look at the north American two prong electrical plug. Still widely used, =
dangerous, and something that we=E2=80=99re stuck with.

Ditto for 120V 60Hz power.

Get it right, because if it does catch on, our great grandchildren will =
have to live with it.

Tony



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From: Ron Bonica <rbonica@juniper.net>
To: Tony Li <tony.li@tony.li>, Vasilenko Eduard <vasilenko.eduard@huawei.com>
CC: "spring@ietf.org" <spring@ietf.org>, "li_zhenqiang@hotmail.com" <li_zhenqiang@hotmail.com>, Andrew Alston <Andrew.Alston=40liquidtelecom.com@dmarc.ietf.org>
Thread-Topic: [spring] SRv6  compression
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Subject: Re: [spring] SRv6  compression
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--00000000000051fecc05c8b26a70
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

Hi all=EF=BC=8C

 I would like to comment on draft-ietf-spring-mpls-path-segment-04.
 Well=EF=BC=8Cwe have lots of deployments using path segment=EF=BC=8Csuch a=
s Path Segment
for Bidirectional SR Path, End-to-end Path Protection=EF=BC=8Cetc. It would=
 be
greatly appreciated if this draft could be standardized ASAP!

Best Regards=EF=BC=8C
Zhen HAN (Fiberhome)

=E5=8F=91=E4=BB=B6=E4=BA=BA=EF=BC=9AJames Guichard <james.n.guichard@future=
wei.com>
=E6=94=B6=E4=BB=B6=E4=BA=BA=EF=BC=9AJames Guichard <james.n.guichard@future=
wei.com>,"spring@ietf.org" <
spring@ietf.org>
=E6=8A=84=E9=80=81=EF=BC=9A"spring-chairs@ietf.org" <spring-chairs@ietf.org=
>
=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4=EF=BC=9A2021-07-22 21:12:26
=E4=B8=BB=E9=A2=98=EF=BC=9ARe: [spring] WGLC for
https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/

Dear WG:



The WGLC for this document will be extended for a further 2 weeks ending
August 4th 2021 so that feedback can be obtained from the WG. Other than
the authors there has been little input so please respond on the mailing
list with any comments etc.



Thanks!



Jim, Joel & Bruno



*From:* James Guichard <james.n.guichard@futurewei.com>
*Sent:* Wednesday, July 7, 2021 11:49 AM
*To:* spring@ietf.org
*Cc:* spring-chairs@ietf.org
*Subject:* WGLC for
https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/



Dear WG:



This email starts a 2 week Working Group Last Call for
draft-ietf-spring-mpls-path-segment [1].



Please read this document if you haven=E2=80=99t read the most recent versi=
on and
send your comments to the SPRING WG list no later than July 21st 2021.



If you are raising a point which you expect will be specifically debated on
the mailing list, consider using a specific email/thread for this point.



Lastly, if you are an author or contributor please response to indicate
whether you know of any undisclosed IPR related to this document.



Thanks!



Jim, Joel & Bruno



[1] https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/
<https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fdatatr=
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fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637612697462524718%7CUnknown%7CTW=
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--00000000000051fecc05c8b26a70
Content-Type: text/html; charset="UTF-8"
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<div dir=3D"ltr"><div class=3D"gmail-thinkmail_quote">Hi all=EF=BC=8C</div>=
<div class=3D"gmail-thinkmail_quote"><br></div><div class=3D"gmail-thinkmai=
l_quote"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><span style=3D=
"font-size:13px;line-height:19.5px">=C2=A0I
 would like to comment on draft-ietf-spring-mpls-path-segment-04.=20
=C2=A0Well=EF=BC=8Cwe have lots of deployments using path segment=EF=BC=8Cs=
uch as Path=20
Segment for Bidirectional SR Path, End-to-end Path Protection=EF=BC=8Cetc. =
It=20
would be greatly appreciated if this draft could be standardized ASAP!</spa=
n></font></div><div class=3D"gmail-thinkmail_quote"><br></div><div class=3D=
"gmail-thinkmail_quote">Best Regards=EF=BC=8C</div><div class=3D"gmail-thin=
kmail_quote">Zhen HAN=C2=A0<span style=3D"font-size:10.5pt;line-height:1.5;=
background-color:transparent">(Fiberhome)</span></div><div class=3D"gmail-t=
hinkmail_quote"><span style=3D"font-size:10.5pt;line-height:1.5;background-=
color:transparent"><br></span></div><div class=3D"gmail-thinkmail_quote"><s=
pan style=3D"font-size:10.5pt;line-height:1.5;background-color:transparent"=
>=E5=8F=91=E4=BB=B6=E4=BA=BA=EF=BC=9AJames Guichard &lt;<a href=3D"mailto:j=
ames.n.guichard@futurewei.com">james.n.guichard@futurewei.com</a>&gt;<br>
=E6=94=B6=E4=BB=B6=E4=BA=BA=EF=BC=9AJames Guichard &lt;<a href=3D"mailto:ja=
mes.n.guichard@futurewei.com">james.n.guichard@futurewei.com</a>&gt;,&quot;=
<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&quot; &lt;<a href=3D=
"mailto:spring@ietf.org">spring@ietf.org</a>&gt;<br>
=E6=8A=84=E9=80=81=EF=BC=9A&quot;<a href=3D"mailto:spring-chairs@ietf.org">=
spring-chairs@ietf.org</a>&quot; &lt;<a href=3D"mailto:spring-chairs@ietf.o=
rg">spring-chairs@ietf.org</a>&gt;<br>
=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4=EF=BC=9A2021-07-22 21:12:26<br>
=E4=B8=BB=E9=A2=98=EF=BC=9ARe: [spring] WGLC for<a href=3D"https://datatrac=
ker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/" style=3D"color:rgb(5=
,99,193);text-decoration:underline">https://datatracker.ietf.org/doc/draft-=
ietf-spring-mpls-path-segment/</a></span><blockquote class=3D"gmail-thinkma=
il_quote" style=3D"margin:0px 0pt 0px 0.5em;border-left:1px solid rgb(204,2=
04,204);padding-left:1ex">
       <div class=3D"gmail-WordSection1"> <p class=3D"MsoNormal" style=3D"m=
argin:0px 0in;font-size:11pt;font-family:Calibri,sans-serif">Dear WG:</p> <=
p class=3D"MsoNormal" style=3D"margin:0px 0in;font-size:11pt;font-family:Ca=
libri,sans-serif">=C2=A0</p> <p class=3D"MsoNormal" style=3D"margin:0px 0in=
;font-size:11pt;font-family:Calibri,sans-serif">The WGLC for this document =
will be extended for a further 2 weeks ending August 4<sup>th</sup>
 2021 so that feedback can be obtained from the WG. Other than the=20
authors there has been little input so please respond on the mailing=20
list with  any comments etc. </p> <p class=3D"MsoNormal" style=3D"margin:0p=
x 0in;font-size:11pt;font-family:Calibri,sans-serif">=C2=A0</p> <p class=3D=
"MsoNormal" style=3D"margin:0px 0in;font-size:11pt;font-family:Calibri,sans=
-serif">Thanks!</p> <p class=3D"MsoNormal" style=3D"margin:0px 0in;font-siz=
e:11pt;font-family:Calibri,sans-serif">=C2=A0</p> <p class=3D"MsoNormal" st=
yle=3D"margin:0px 0in;font-size:11pt;font-family:Calibri,sans-serif">Jim, J=
oel &amp; Bruno</p> <p class=3D"MsoNormal" style=3D"margin:0px 0in;font-siz=
e:11pt;font-family:Calibri,sans-serif">=C2=A0</p> <div> <div style=3D"borde=
r-color:rgb(225,225,225) currentcolor currentcolor;border-style:solid none =
none;border-width:1pt medium medium;padding:3pt 0in 0in"> <p class=3D"MsoNo=
rmal" style=3D"margin:0px 0in;font-size:11pt;font-family:Calibri,sans-serif=
"><b>From:</b> James Guichard &lt;<a href=3D"mailto:james.n.guichard@future=
wei.com">james.n.guichard@futurewei.com</a>&gt; <br> <b>Sent:</b> Wednesday=
, July 7, 2021 11:49 AM<br> <b>To:</b> <a href=3D"mailto:spring@ietf.org">s=
pring@ietf.org</a><br> <b>Cc:</b> <a href=3D"mailto:spring-chairs@ietf.org"=
>spring-chairs@ietf.org</a><br> <b>Subject:</b> WGLC for <a href=3D"https:/=
/datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/">https://dat=
atracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/</a></p> </div> <=
/div> <p class=3D"MsoNormal" style=3D"margin:0px 0in;font-size:11pt;font-fa=
mily:Calibri,sans-serif">=C2=A0</p> <p class=3D"MsoNormal" style=3D"margin:=
0px 0in;font-size:11pt;font-family:Calibri,sans-serif">Dear WG:</p> <p clas=
s=3D"MsoNormal" style=3D"margin:0px 0in;font-size:11pt;font-family:Calibri,=
sans-serif">=C2=A0</p> <p class=3D"MsoNormal" style=3D"margin:0px 0in;font-=
size:11pt;font-family:Calibri,sans-serif">This email starts a 2 week Workin=
g Group Last Call for draft-ietf-spring-mpls-path-segment [1].</p> <p class=
=3D"MsoNormal" style=3D"margin:0px 0in;font-size:11pt;font-family:Calibri,s=
ans-serif">=C2=A0</p> <p class=3D"MsoNormal" style=3D"margin:0px 0in;font-s=
ize:11pt;font-family:Calibri,sans-serif">Please
 read this document if you haven=E2=80=99t read the most recent version and=
 send
 your comments to the SPRING WG list no later than July 21<sup>st</sup> 202=
1. </p> <p class=3D"MsoNormal" style=3D"margin:0px 0in;font-size:11pt;font-=
family:Calibri,sans-serif">=C2=A0</p> <p class=3D"MsoNormal" style=3D"margi=
n:0px 0in;font-size:11pt;font-family:Calibri,sans-serif"><span style=3D"col=
or:rgb(33,37,41)">If
 you are raising a point which you expect will be specifically debated=20
on the mailing list, consider using a specific email/thread for this=20
point.</span></p> <p class=3D"MsoNormal" style=3D"margin:0px 0in;font-size:=
11pt;font-family:Calibri,sans-serif"><span style=3D"color:rgb(33,37,41)">=
=C2=A0</span></p> <p class=3D"MsoNormal" style=3D"margin:0px 0in;font-size:=
11pt;font-family:Calibri,sans-serif"><span style=3D"color:rgb(33,37,41)">La=
stly,
 if you are an author or contributor please response to indicate whether
 you know of any undisclosed IPR related to this document. </span></p> <p c=
lass=3D"MsoNormal" style=3D"margin:0px 0in;font-size:11pt;font-family:Calib=
ri,sans-serif">=C2=A0</p> <p class=3D"MsoNormal" style=3D"margin:0px 0in;fo=
nt-size:11pt;font-family:Calibri,sans-serif">Thanks!</p> <p class=3D"MsoNor=
mal" style=3D"margin:0px 0in;font-size:11pt;font-family:Calibri,sans-serif"=
>=C2=A0</p> <p class=3D"MsoNormal" style=3D"margin:0px 0in;font-size:11pt;f=
ont-family:Calibri,sans-serif">Jim, Joel &amp; Bruno</p> <p class=3D"MsoNor=
mal" style=3D"margin:0px 0in;font-size:11pt;font-family:Calibri,sans-serif"=
>=C2=A0</p> <p class=3D"MsoNormal" style=3D"margin:0px 0in;font-size:11pt;f=
ont-family:Calibri,sans-serif;background:white none repeat scroll 0% 0%"><s=
pan style=3D"color:black">[1] <a href=3D"https://nam11.safelinks.protection=
.outlook.com/?url=3Dhttps%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-ietf-s=
pring-mpls-path-segment%2F&amp;data=3D04%7C01%7Cjames.n.guichard%40futurewe=
i.com%7C4336eaaa34f543cc4c9e08d9415ebd06%7C0fee8ff2a3b240189c753a1d5591fedc=
%7C1%7C0%7C637612697462524718%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiL=
CJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=3Dv18Zntmw18=
jYiIXCNMDa7bYNQMZ90U29GVEkuPh5CjE%3D&amp;reserved=3D0" style=3D"color:rgb(5=
,99,193);text-decoration:underline"> https://datatracker.ietf.org/doc/draft=
-ietf-spring-mpls-path-segment/</a></span></p> <p class=3D"MsoNormal" style=
=3D"margin:0px 0in;font-size:11pt;font-family:Calibri,sans-serif;background=
:white none repeat scroll 0% 0%">=C2=A0</p></div></blockquote></div></div>

--00000000000051fecc05c8b26a70--


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Subject: Re: [spring] SRv6 compression
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Hi Tony,

well said.

With this in mind I'd rather ask: Do we really need SID list compression 
at all?

If silicon sooner or later get's tailored for SRv6, can't it be made to 
simply parse big enough headers?

IMHO SRv6 is the one thing that really allows for full flexibility for 
whatever use-cases may come up in the future. Any compression scheme has 
drawbacks.

Best regards, Martin


Am 03.08.21 um 16:55 schrieb Tony Li:
> 
> Hi all,
> 
> I have a bit of a different perspective.
> 
> Whatever solution is selected, it will be basically forever. Vendors will cut this into silicon. Quite literally set in stone. It will get deployed and there will be no turning back.
> We should pick the best possible solution because we will have to live with it. Forever. That far surpasses the pain of having to replace whatever folks have deployed so far.
> 
> Thus, while I wish no one undue pain, the fact is that current deployment, popularity, and market share arenâ€™t compelling reasons to make a selection.
> We need the technically optimal solution.
> 
> Please choose carefully. Please choose wisely. Please choose for the very long haul.
> 
> Tony
> 
> 
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
> 


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Hi Martin,

> well said.


Thanks.


> With this in mind I'd rather ask: Do we really need SID list =
compression at all?


A very fair question.=20


> If silicon sooner or later get's tailored for SRv6, can't it be made =
to simply parse big enough headers?


My understanding of SRv6 is that the SID list is effectively unbounded. =
It=E2=80=99s hard to grow silicon to keep up with unbounded. :-)

The size of the SID list also affects MTU.  Every byte that you send in =
a SID list is one byte less of payload that fits.  This is perhaps less =
of a concern right now, but over time, as more folks move to larger =
MTUs, this will become more problematic.

The real killer is the cost in bandwidth. Please remember that every =
byte of SID list costs us because we have to transport it. And there=E2=80=
=99s no =E2=80=98revenue=E2=80=99 associated with this, it=E2=80=99s =
pure overhead.

I=E2=80=99m old enough to remember another link layer with a high =
overhead: ATM. Adaptation layers, cells, the whole nine yards. The net =
overhead was painful. So painful that it was uncompetitive. So =
uncompetitive that ISPs simply turned it off and replaced it with packet =
over SONET. And for lower overhead, just straight Ethernet over fiber.

Overhead counts. It comes straight off of the bottom line.  Reducing it =
is very helpful. Even with a compressed header, SRv6 is asking the =
industry to pay a pretty penny in overhead and this will go directly =
against SRv6 adoption, especially by those who are knowledgeable and =
paying the bills.  So yes compressing the SID list is beneficial for =
SRv6. It may well be the only real hope that SRv6 has for widespread =
adoption.


> IMHO SRv6 is the one thing that really allows for full flexibility for =
whatever use-cases may come up in the future. Any compression scheme has =
drawbacks.


That would be called the reserve parachute.  :)

Tony


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Subject: [spring] Progressing Standardizing SR over IPv6 compression
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The SPRING Working Group Chairs thank the design team for their efforts 
on the requirements and analysis drafts.  The question of how the 
working group wants to progress that part of the work will be the topic 
for a separate email a bit later.

Right now, we are hearing the discussion about how many solutions, and 
the perspectives being expressed.  While the topic was well-raised, the 
discussion to date has not been structured in a way that makes clear to 
everyone what the purpose is.  In particular, the chairs have decided to 
re-ask the question.  We ask that even those who have responded in the 
discussion respond to this thread.  Preferably with both what their 
opinion is and an explanation of why.

The question we are asking you to comment on is:

Should the working group standardize one data plane behavior for 
compressing SRv6 information?

Please speak up.  We are looking to collect responses until close of 
business PDT on 20-August-2021.

Thank you,
Joel, Jim, and Bruno


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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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> The question we are asking you to comment on is:
>=20
> Should the working group standardize one data plane behavior for =
compressing SRv6 information?


Yes.

One. And only one.

Why?=20

Let=E2=80=99s suppose that we choose N (or fail to choose).  Different =
networks will make different choices. Then vendors will be forced to =
support all N of them. Chip manufacturers will have to support all N of =
them. Effectively forever. Sure, some may fail, but by that point it =
becomes impossible to remove the support without re-verifying the chip. =
So no one will.

Choosing more than one is hideously inefficient for the entire industry. =
 Our job, as an SDO, is to make a single standard.

The IETF is neither a coffee klatsch nor a publishing house.  Our duty =
is to make the tough decisions for the world.

Tony


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From: "Aissaoui, Mustapha (Nokia - CA/Ottawa)" <mustapha.aissaoui@nokia.com>
To: "Joel M. Halpern" <jmh@joelhalpern.com>, "spring@ietf.org" <spring@ietf.org>
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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Yes.=20

And repeating what I said in the earlier email message, we want a single st=
andard method of SID compression to allow the WG to focus on finalizing it =
and get vendors hardware implementations updated.

Mustapha.

-----Original Message-----
From: spring <spring-bounces@ietf.org> On Behalf Of Joel M. Halpern
Sent: Wednesday, August 4, 2021 2:52 PM
To: spring@ietf.org
Subject: [spring] Progressing Standardizing SR over IPv6 compression

The SPRING Working Group Chairs thank the design team for their efforts on =
the requirements and analysis drafts.  The question of how the working grou=
p wants to progress that part of the work will be the topic for a separate =
email a bit later.

Right now, we are hearing the discussion about how many solutions, and the =
perspectives being expressed.  While the topic was well-raised, the discuss=
ion to date has not been structured in a way that makes clear to everyone w=
hat the purpose is.  In particular, the chairs have decided to re-ask the q=
uestion.  We ask that even those who have responded in the discussion respo=
nd to this thread.  Preferably with both what their opinion is and an expla=
nation of why.

The question we are asking you to comment on is:

Should the working group standardize one data plane behavior for compressin=
g SRv6 information?

Please speak up.  We are looking to collect responses until close of busine=
ss PDT on 20-August-2021.

Thank you,
Joel, Jim, and Bruno

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


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From: Robert Raszuk <robert@raszuk.net>
Date: Wed, 4 Aug 2021 22:41:50 +0200
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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> Should the working group standardize one data plane behavior for
> compressing SRv6 information?

Yes.

This is data plane and any "flexibility" of more then one solution in data
plane would only bring pain to everyone.

Thx,
R.





On Wed, Aug 4, 2021 at 8:52 PM Joel M. Halpern <jmh@joelhalpern.com> wrote:

> The SPRING Working Group Chairs thank the design team for their efforts
> on the requirements and analysis drafts.  The question of how the
> working group wants to progress that part of the work will be the topic
> for a separate email a bit later.
>
> Right now, we are hearing the discussion about how many solutions, and
> the perspectives being expressed.  While the topic was well-raised, the
> discussion to date has not been structured in a way that makes clear to
> everyone what the purpose is.  In particular, the chairs have decided to
> re-ask the question.  We ask that even those who have responded in the
> discussion respond to this thread.  Preferably with both what their
> opinion is and an explanation of why.
>
> The question we are asking you to comment on is:
>
> Should the working group standardize one data plane behavior for
> compressing SRv6 information?
>
> Please speak up.  We are looking to collect responses until close of
> business PDT on 20-August-2021.
>
> Thank you,
> Joel, Jim, and Bruno
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

--000000000000f3b81305c8c1d3e8
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<div dir=3D"ltr"><div dir=3D"ltr"><br></div><div dir=3D"ltr">&gt; Should th=
e working group standardize one data plane behavior for</div><div dir=3D"lt=
r">&gt;=C2=A0compressing SRv6 information?<br></div><div dir=3D"ltr"><br></=
div><div>Yes.=C2=A0</div><div><br></div><div>This is data plane and any &qu=
ot;flexibility&quot; of more then one solution in data plane would only bri=
ng pain to=C2=A0everyone.=C2=A0</div><div><br></div><div>Thx,</div><div>R.<=
/div><div dir=3D"ltr"><br></div><div dir=3D"ltr"><br></div><div dir=3D"ltr"=
><br></div><div dir=3D"ltr"><br></div><br><div class=3D"gmail_quote"><div d=
ir=3D"ltr" class=3D"gmail_attr">On Wed, Aug 4, 2021 at 8:52 PM Joel M. Halp=
ern &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 0=
px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">The SPRIN=
G Working Group Chairs thank the design team for their efforts <br>
on the requirements and analysis drafts.=C2=A0 The question of how the <br>
working group wants to progress that part of the work will be the topic <br=
>
for a separate email a bit later.<br>
<br>
Right now, we are hearing the discussion about how many solutions, and <br>
the perspectives being expressed.=C2=A0 While the topic was well-raised, th=
e <br>
discussion to date has not been structured in a way that makes clear to <br=
>
everyone what the purpose is.=C2=A0 In particular, the chairs have decided =
to <br>
re-ask the question.=C2=A0 We ask that even those who have responded in the=
 <br>
discussion respond to this thread.=C2=A0 Preferably with both what their <b=
r>
opinion is and an explanation of why.<br>
<br>
The question we are asking you to comment on is:<br>
<br>
Should the working group standardize one data plane behavior for <br>
compressing SRv6 information?<br>
<br>
Please speak up.=C2=A0 We are looking to collect responses until close of <=
br>
business PDT on 20-August-2021.<br>
<br>
Thank you,<br>
Joel, Jim, and Bruno<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></div>

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From: Keyur Patel <keyur@arrcus.com>
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Thread-Topic: [spring] Progressing Standardizing SR over IPv6 compression
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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=93Should the working group standardize one data plane behavior for
compressing SRv6 information?=94

Yes, only one data plane behavior as standards track document.
As discussed, there are precedents in other WGs for similar processes and s=
tandardizing on a single data plane solution helped move forward.

Thanks.
Jorge


From: spring <spring-bounces@ietf.org> on behalf of Joel M. Halpern <jmh@jo=
elhalpern.com>
Date: Wednesday, August 4, 2021 at 11:52 AM
To: spring@ietf.org <spring@ietf.org>
Subject: [spring] Progressing Standardizing SR over IPv6 compression
The SPRING Working Group Chairs thank the design team for their efforts
on the requirements and analysis drafts.  The question of how the
working group wants to progress that part of the work will be the topic
for a separate email a bit later.

Right now, we are hearing the discussion about how many solutions, and
the perspectives being expressed.  While the topic was well-raised, the
discussion to date has not been structured in a way that makes clear to
everyone what the purpose is.  In particular, the chairs have decided to
re-ask the question.  We ask that even those who have responded in the
discussion respond to this thread.  Preferably with both what their
opinion is and an explanation of why.

The question we are asking you to comment on is:

Should the working group standardize one data plane behavior for
compressing SRv6 information?

Please speak up.  We are looking to collect responses until close of
business PDT on 20-August-2021.

Thank you,
Joel, Jim, and Bruno

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

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<p class=3D"MsoNormal">=93Should the working group standardize one data pla=
ne behavior for
<br>
compressing SRv6 information?=94<span style=3D"font-size:10.5pt;font-family=
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<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
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<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
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</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
">As discussed, there are precedents in other WGs for similar processes and=
 standardizing on a single data plane solution helped move forward.<o:p></o=
:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
">Thanks.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
">Jorge<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
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<b><span style=3D"font-size:12.0pt;color:black">From: </span></b><span styl=
e=3D"font-size:12.0pt;color:black">spring &lt;spring-bounces@ietf.org&gt; o=
n behalf of Joel M. Halpern &lt;jmh@joelhalpern.com&gt;<br>
<b>Date: </b>Wednesday, August 4, 2021 at 11:52 AM<br>
<b>To: </b>spring@ietf.org &lt;spring@ietf.org&gt;<br>
<b>Subject: </b>[spring] Progressing Standardizing SR over IPv6 compression=
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt">The SPRING Working Grou=
p Chairs thank the design team for their efforts
<br>
on the requirements and analysis drafts.&nbsp; The question of how the <br>
working group wants to progress that part of the work will be the topic <br=
>
for a separate email a bit later.<br>
<br>
Right now, we are hearing the discussion about how many solutions, and <br>
the perspectives being expressed.&nbsp; While the topic was well-raised, th=
e <br>
discussion to date has not been structured in a way that makes clear to <br=
>
everyone what the purpose is.&nbsp; In particular, the chairs have decided =
to <br>
re-ask the question.&nbsp; We ask that even those who have responded in the=
 <br>
discussion respond to this thread.&nbsp; Preferably with both what their <b=
r>
opinion is and an explanation of why.<br>
<br>
The question we are asking you to comment on is:<br>
<br>
Should the working group standardize one data plane behavior for <br>
compressing SRv6 information?<br>
<br>
Please speak up.&nbsp; We are looking to collect responses until close of <=
br>
business PDT on 20-August-2021.<br>
<br>
Thank you,<br>
Joel, Jim, and Bruno<br>
<br>
_______________________________________________<br>
spring mailing list<br>
spring@ietf.org<br>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring">https://www.ietf.o=
rg/mailman/listinfo/spring</a><o:p></o:p></p>
</div>
</div>
</body>
</html>

--_000_BY3PR08MB70605D1F73744BC066B1BBCCF7F19BY3PR08MB7060namp_--


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From: Lihao <lihao@h3c.com>
To: "Joel M. Halpern" <jmh@joelhalpern.com>, "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [spring] Progressing Standardizing SR over IPv6 compression
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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I will repeat what I said before, given this has to be implemented in HW it=
 is better for everyone to have a single solution.
Also for interoperability purposes 1 solution will help us all.

From: spring <spring-bounces@ietf.org> on behalf of Joel M. Halpern <jmh@jo=
elhalpern.com>
Date: Wednesday, 4 August 2021 at 20:52
To: spring@ietf.org <spring@ietf.org>
Subject: [spring] Progressing Standardizing SR over IPv6 compression
The SPRING Working Group Chairs thank the design team for their efforts
on the requirements and analysis drafts.  The question of how the
working group wants to progress that part of the work will be the topic
for a separate email a bit later.

Right now, we are hearing the discussion about how many solutions, and
the perspectives being expressed.  While the topic was well-raised, the
discussion to date has not been structured in a way that makes clear to
everyone what the purpose is.  In particular, the chairs have decided to
re-ask the question.  We ask that even those who have responded in the
discussion respond to this thread.  Preferably with both what their
opinion is and an explanation of why.

The question we are asking you to comment on is:

Should the working group standardize one data plane behavior for
compressing SRv6 information?

Please speak up.  We are looking to collect responses until close of
business PDT on 20-August-2021.

Thank you,
Joel, Jim, and Bruno

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

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<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:E=
N-US">I will repeat what I said before, given this has to be implemented in=
 HW it is better for everyone to have a single solution.<o:p></o:p></span><=
/p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:E=
N-US">Also for interoperability purposes 1 solution will help us all.<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 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">spring &lt;spring-b=
ounces@ietf.org&gt; on behalf of Joel M. Halpern &lt;jmh@joelhalpern.com&gt=
;<br>
<b>Date: </b>Wednesday, 4 August 2021 at 20:52<br>
<b>To: </b>spring@ietf.org &lt;spring@ietf.org&gt;<br>
<b>Subject: </b>[spring] Progressing Standardizing SR over IPv6 compression=
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal">The SPRING Working Group Chairs thank the design tea=
m for their efforts
<br>
on the requirements and analysis drafts.&nbsp; The question of how the <br>
working group wants to progress that part of the work will be the topic <br=
>
for a separate email a bit later.<br>
<br>
Right now, we are hearing the discussion about how many solutions, and <br>
the perspectives being expressed.&nbsp; While the topic was well-raised, th=
e <br>
discussion to date has not been structured in a way that makes clear to <br=
>
everyone what the purpose is.&nbsp; In particular, the chairs have decided =
to <br>
re-ask the question.&nbsp; We ask that even those who have responded in the=
 <br>
discussion respond to this thread.&nbsp; Preferably with both what their <b=
r>
opinion is and an explanation of why.<br>
<br>
The question we are asking you to comment on is:<br>
<br>
Should the working group standardize one data plane behavior for <br>
compressing SRv6 information?<br>
<br>
Please speak up.&nbsp; We are looking to collect responses until close of <=
br>
business PDT on 20-August-2021.<br>
<br>
Thank you,<br>
Joel, Jim, and Bruno<br>
<br>
_______________________________________________<br>
spring mailing list<br>
spring@ietf.org<br>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring">https://www.ietf.o=
rg/mailman/listinfo/spring</a><o:p></o:p></p>
</div>
</div>
</body>
</html>

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From: Gyan Mishra <hayabusagsm@gmail.com>
Date: Thu, 5 Aug 2021 02:46:59 -0400
Message-ID: <CABNhwV0SGSj_AaaHxg-LiTAOuAEn9qAx-0iujT3BUJKcsBSVzw@mail.gmail.com>
To: "Henderickx, Wim (Nokia - BE/Antwerp)" <wim.henderickx@nokia.com>
Cc: "Joel M. Halpern" <jmh@joelhalpern.com>, "spring@ietf.org" <spring@ietf.org>
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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The question we are asking you to comment on is:

Should the working group standardize one data plane behavior for
compressing SRv6 information?

Yes

>From an operators perspective interoperability is critical and utmost
importance, so we cannot risk having vendors pick their own solution they
like and develop that solution.

One of the primary goals and objectives of the IETF and all the
stakeholders in the industry rely on the IETF to maintain uphold the high
bar when it comes to standardization.

The major risk in having multiple solutions for a data plane is the risk of
interoperability as vendors may pick and choose their favorite and what
they want to develop which can really hurts the entire router industry.

Kind Regards

Gyan


On Thu, Aug 5, 2021 at 12:09 AM Henderickx, Wim (Nokia - BE/Antwerp) <
wim.henderickx@nokia.com> wrote:

> I will repeat what I said before, given this has to be implemented in HW
> it is better for everyone to have a single solution.
>
> Also for interoperability purposes 1 solution will help us all.
>
>
>
> *From: *spring <spring-bounces@ietf.org> on behalf of Joel M. Halpern <
> jmh@joelhalpern.com>
> *Date: *Wednesday, 4 August 2021 at 20:52
> *To: *spring@ietf.org <spring@ietf.org>
> *Subject: *[spring] Progressing Standardizing SR over IPv6 compression
>
> The SPRING Working Group Chairs thank the design team for their efforts
> on the requirements and analysis drafts.  The question of how the
> working group wants to progress that part of the work will be the topic
> for a separate email a bit later.
>
> Right now, we are hearing the discussion about how many solutions, and
> the perspectives being expressed.  While the topic was well-raised, the
> discussion to date has not been structured in a way that makes clear to
> everyone what the purpose is.  In particular, the chairs have decided to
> re-ask the question.  We ask that even those who have responded in the
> discussion respond to this thread.  Preferably with both what their
> opinion is and an explanation of why.
>
> The question we are asking you to comment on is:
>
> Should the working group standardize one data plane behavior for
> compressing SRv6 information?
>
> Please speak up.  We are looking to collect responses until close of
> business PDT on 20-August-2021.
>
> Thank you,
> Joel, Jim, and Bruno
>
> _______________________________________________
> 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
>
-- 

<http://www.verizon.com/>

*Gyan Mishra*

*Network Solutions A**rchitect *

*Email gyan.s.mishra@verizon.com <gyan.s.mishra@verizon.com>*



*M 301 502-1347*

--000000000000d81a0605c8ca4910
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<div><br></div><div dir=3D"auto"><span style=3D"color:rgb(49,49,49);word-sp=
acing:1px">The question we are asking you to comment on is:</span><br style=
=3D"color:rgb(49,49,49);word-spacing:1px"><br style=3D"color:rgb(49,49,49);=
word-spacing:1px"><span style=3D"color:rgb(49,49,49);word-spacing:1px">Shou=
ld the working group standardize one data plane behavior for=C2=A0</span><b=
r style=3D"color:rgb(49,49,49);word-spacing:1px"><span class=3D"term-highli=
ghted" style=3D"background-color:rgba(253,239,193,0.5);color:rgb(49,49,49);=
word-spacing:1px">compressing</span><span style=3D"color:rgb(49,49,49);word=
-spacing:1px">=C2=A0</span><span class=3D"term-highlighted" style=3D"backgr=
ound-color:rgba(253,239,193,0.5);color:rgb(49,49,49);word-spacing:1px">SRv6=
</span><span style=3D"color:rgb(49,49,49);word-spacing:1px">=C2=A0informati=
on?</span><br></div><div dir=3D"auto"><span style=3D"color:rgb(49,49,49);wo=
rd-spacing:1px"><br></span></div><div dir=3D"auto"><span style=3D"color:rgb=
(49,49,49);word-spacing:1px">Yes=C2=A0</span></div><div dir=3D"auto"><span =
style=3D"color:rgb(49,49,49);word-spacing:1px"><br></span></div><div dir=3D=
"auto"><span style=3D"color:rgb(49,49,49);word-spacing:1px">From an operato=
rs perspective interoperability is critical and utmost importance, so we ca=
nnot risk having vendors pick their own solution they like and develop that=
 solution.=C2=A0</span></div><div dir=3D"auto"><span style=3D"color:rgb(49,=
49,49);word-spacing:1px"><br></span></div><div dir=3D"auto"><font color=3D"=
#313131"><span style=3D"word-spacing:1px">One of the primary goals and obje=
ctives of the IETF and all the stakeholders in the industry rely on the IET=
F to maintain uphold the high bar when it comes to standardization. =C2=A0<=
/span></font></div><div dir=3D"auto"><font color=3D"#313131"><span style=3D=
"word-spacing:1px"><br></span></font></div><div dir=3D"auto"><font color=3D=
"#313131"><span style=3D"word-spacing:1px">The major risk in having multipl=
e solutions for a data plane is the risk of interoperability as vendors may=
 pick and choose their favorite and what they want to develop which can rea=
lly hurts the entire router industry.</span></font></div><div dir=3D"auto">=
<font color=3D"#313131"><span style=3D"word-spacing:1px"><br></span></font>=
</div><div dir=3D"auto"><font color=3D"#313131"><span style=3D"word-spacing=
:1px">Kind Regards=C2=A0</span></font></div><div dir=3D"auto"><font color=
=3D"#313131"><span style=3D"word-spacing:1px"><br></span></font></div><div =
dir=3D"auto"><font color=3D"#313131"><span style=3D"word-spacing:1px">Gyan<=
/span></font></div><div dir=3D"auto"><br></div><div><br><div class=3D"gmail=
_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, Aug 5, 2021 at 12:09 =
AM Henderickx, Wim (Nokia - BE/Antwerp) &lt;<a href=3D"mailto:wim.henderick=
x@nokia.com">wim.henderickx@nokia.com</a>&gt; wrote:<br></div><blockquote c=
lass=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;=
padding-left:1ex">





<div lang=3D"en-BE" link=3D"blue" vlink=3D"purple" style=3D"word-wrap:break=
-word">
<div class=3D"m_-8293620104468443655WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US">I will repeat what I said befor=
e, given this has to be implemented in HW it is better for everyone to have=
 a single solution.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Also for interoperability purpo=
ses 1 solution will help us all.<u></u><u></u></span></p></div></div><div l=
ang=3D"en-BE" link=3D"blue" vlink=3D"purple" style=3D"word-wrap:break-word"=
><div class=3D"m_-8293620104468443655WordSection1">
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></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">spring &lt;<a href=
=3D"mailto:spring-bounces@ietf.org" target=3D"_blank">spring-bounces@ietf.o=
rg</a>&gt; on behalf of Joel M. Halpern &lt;<a href=3D"mailto:jmh@joelhalpe=
rn.com" target=3D"_blank">jmh@joelhalpern.com</a>&gt;<br>
<b>Date: </b>Wednesday, 4 August 2021 at 20:52<br>
<b>To: </b><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@ie=
tf.org</a>&gt;<br>
<b>Subject: </b>[spring] Progressing Standardizing SR over IPv6 compression=
<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal">The SPRING Working Group Chairs thank the design tea=
m for their efforts
<br>
on the requirements and analysis drafts.=C2=A0 The question of how the <br>
working group wants to progress that part of the work will be the topic <br=
>
for a separate email a bit later.<br>
<br>
Right now, we are hearing the discussion about how many solutions, and <br>
the perspectives being expressed.=C2=A0 While the topic was well-raised, th=
e <br>
discussion to date has not been structured in a way that makes clear to <br=
>
everyone what the purpose is.=C2=A0 In particular, the chairs have decided =
to <br>
re-ask the question.=C2=A0 We ask that even those who have responded in the=
 <br>
discussion respond to this thread.=C2=A0 Preferably with both what their <b=
r>
opinion is and an explanation of why.<br>
<br>
The question we are asking you to comment on is:<br>
<br>
Should the working group standardize one data plane behavior for <br>
compressing SRv6 information?<br>
<br>
Please speak up.=C2=A0 We are looking to collect responses until close of <=
br>
business PDT on 20-August-2021.<br>
<br>
Thank you,<br>
Joel, Jim, and Bruno<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" target=3D"_blank">=
https://www.ietf.org/mailman/listinfo/spring</a><u></u><u></u></p>
</div>
</div>
</div>

_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer"=
 target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><br>
</blockquote></div></div>-- <br><div dir=3D"ltr" class=3D"gmail_signature" =
data-smartmail=3D"gmail_signature"><div dir=3D"ltr"><div dir=3D"ltr"><div d=
ir=3D"ltr"><div dir=3D"ltr"><div dir=3D"ltr"><div dir=3D"ltr"><div dir=3D"l=
tr"><div><p style=3D"color:rgb(34,34,34)"><a href=3D"http://www.verizon.com=
/" style=3D"color:rgb(17,85,204);padding-bottom:1em;display:inline-block" t=
arget=3D"_blank"><img src=3D"http://ss7.vzw.com/is/image/VerizonWireless/vz=
-logo-email" width=3D"81" height=3D"18" style=3D"height:18px;width:81px"></=
a><br></p><p style=3D"font-size:1em;margin:0px;font-family:&quot;Verizon NH=
G DS&quot;,Arial,sans-serif;line-height:13px;color:black"><b>Gyan Mishra</b=
></p><p style=3D"color:rgb(34,34,34);margin:0px;line-height:13px"><font fac=
e=3D"georgia, serif" style=3D"color:black;font-size:1em"><i>Network Solutio=
ns A</i></font><font color=3D"#000000" face=3D"georgia, serif"><i>rchitect=
=C2=A0</i></font></p><p style=3D"color:rgb(34,34,34);margin:0px;line-height=
:13px"><i style=3D"color:rgb(0,0,0);font-size:13px"><font face=3D"georgia, =
serif">Email <a href=3D"mailto:gyan.s.mishra@verizon.com" target=3D"_blank"=
>gyan.s.mishra@verizon.com</a></font></i><font color=3D"#000000" face=3D"ge=
orgia, serif"><i><br></i></font></p><p style=3D"font-size:1em;margin:0px;li=
ne-height:13px;color:black"><i><font face=3D"georgia, serif">M 301 502-1347=
<br><br></font></i></p></div><div><br></div></div></div></div></div></div><=
/div></div></div>

--000000000000d81a0605c8ca4910--


From nobody Thu Aug  5 00:51:54 2021
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To: "Joel M. Halpern" <jmh@joelhalpern.com>, "spring@ietf.org" <spring@ietf.org>
References: <4c03c28c-2b7d-0a90-c2bb-5fff53d0bc4c@joelhalpern.com>
From: Takuya Miyasaka <ta-miyasaka@kddi-research.jp>
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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Hi,

Firstly, I would like to thank the design team for their outstanding work.

 > Should the working group standardize one data plane behavior for 
compressing SRv6 information?
Yes.

 From the operator's point of view, we are always looking for quick 
implementation and interoperability across multiple vendors. For this 
reason, we prefer one data plane under the SRv6 umbrella.

Regards,
Takuya

On 2021/08/05 3:52, Joel M. Halpern wrote:
> The SPRING Working Group Chairs thank the design team for their 
> efforts on the requirements and analysis drafts.Â  The question of how 
> the working group wants to progress that part of the work will be the 
> topic for a separate email a bit later.
>
> Right now, we are hearing the discussion about how many solutions, and 
> the perspectives being expressed.Â  While the topic was well-raised, 
> the discussion to date has not been structured in a way that makes 
> clear to everyone what the purpose is.Â  In particular, the chairs have 
> decided to re-ask the question.Â  We ask that even those who have 
> responded in the discussion respond to this thread.Â  Preferably with 
> both what their opinion is and an explanation of why.
>
> The question we are asking you to comment on is:
>
> Should the working group standardize one data plane behavior for 
> compressing SRv6 information?
>
> Please speak up.Â  We are looking to collect responses until close of 
> business PDT on 20-August-2021.
>
> Thank you,
> Joel, Jim, and Bruno
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring


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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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--0000000000001ded9805c8cb9f39
Content-Type: text/plain; charset="UTF-8"

    Should the working group standardize one data plane behavior for
    compressing SRv6 information?

Yes.

cheers,
   Eduard

On Wed, Aug 4, 2021 at 8:52 PM Joel M. Halpern <jmh@joelhalpern.com> wrote:

> The SPRING Working Group Chairs thank the design team for their efforts
> on the requirements and analysis drafts.  The question of how the
> working group wants to progress that part of the work will be the topic
> for a separate email a bit later.
>
> Right now, we are hearing the discussion about how many solutions, and
> the perspectives being expressed.  While the topic was well-raised, the
> discussion to date has not been structured in a way that makes clear to
> everyone what the purpose is.  In particular, the chairs have decided to
> re-ask the question.  We ask that even those who have responded in the
> discussion respond to this thread.  Preferably with both what their
> opinion is and an explanation of why.
>
> The question we are asking you to comment on is:
>
> Should the working group standardize one data plane behavior for
> compressing SRv6 information?
>
> Please speak up.  We are looking to collect responses until close of
> business PDT on 20-August-2021.
>
> Thank you,
> Joel, Jim, and Bruno
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

--0000000000001ded9805c8cb9f39
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><span style=3D"color:rgb(80,0,80)">=C2=A0 =C2=A0 Should th=
e working group standardize one data plane behavior for</span><br style=3D"=
color:rgb(80,0,80)"><span style=3D"color:rgb(80,0,80)">=C2=A0 =C2=A0 compre=
ssing SRv6 information?</span><br><div><span style=3D"color:rgb(80,0,80)"><=
br></span></div><div><font color=3D"#000000">Yes.</font></div><div><font co=
lor=3D"#000000"><br></font></div><div><font color=3D"#000000">cheers,</font=
></div><div><font color=3D"#000000">=C2=A0 =C2=A0Eduard</font></div></div><=
br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Wed,=
 Aug 4, 2021 at 8:52 PM Joel M. Halpern &lt;<a href=3D"mailto:jmh@joelhalpe=
rn.com">jmh@joelhalpern.com</a>&gt; wrote:<br></div><blockquote class=3D"gm=
ail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,=
204,204);padding-left:1ex">The SPRING Working Group Chairs thank the design=
 team for their efforts <br>
on the requirements and analysis drafts.=C2=A0 The question of how the <br>
working group wants to progress that part of the work will be the topic <br=
>
for a separate email a bit later.<br>
<br>
Right now, we are hearing the discussion about how many solutions, and <br>
the perspectives being expressed.=C2=A0 While the topic was well-raised, th=
e <br>
discussion to date has not been structured in a way that makes clear to <br=
>
everyone what the purpose is.=C2=A0 In particular, the chairs have decided =
to <br>
re-ask the question.=C2=A0 We ask that even those who have responded in the=
 <br>
discussion respond to this thread.=C2=A0 Preferably with both what their <b=
r>
opinion is and an explanation of why.<br>
<br>
The question we are asking you to comment on is:<br>
<br>
Should the working group standardize one data plane behavior for <br>
compressing SRv6 information?<br>
<br>
Please speak up.=C2=A0 We are looking to collect responses until close of <=
br>
business PDT on 20-August-2021.<br>
<br>
Thank you,<br>
Joel, Jim, and Bruno<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>

--0000000000001ded9805c8cb9f39--


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From: "Bernier, Daniel" <daniel.bernier@bell.ca>
To: "Joel M. Halpern" <jmh@joelhalpern.com>, "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [EXT][spring] Progressing Standardizing SR over IPv6 compression
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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From: Stefano Salsano <stefano.salsano@uniroma2.it>
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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Il 2021-08-04 20:52, Joel M. Halpern ha scritto:
[...]
> The question we are asking you to comment on is:
> 
> Should the working group standardize one data plane behavior for 
> compressing SRv6 information?

yes, only one solution for SRv6 header compression

the design team has worked one year to compare different solutions, we 
need to take into account the results of the DT work to select the 
solution to be standardized

ciao
Stefano

> 
> Please speak up.  We are looking to collect responses until close of 
> business PDT on 20-August-2021.
> 
> Thank you,
> Joel, Jim, and Bruno
> 
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring


-- 
*******************************************************************
Stefano Salsano
Professore Associato
Dipartimento Ingegneria Elettronica
Universita' di Roma Tor Vergata
Viale Politecnico, 1 - 00133 Roma - ITALY

http://netgroup.uniroma2.it/Stefano_Salsano/

E-mail  : stefano.salsano@uniroma2.it
Cell.   : +39 320 4307310
Office  : (Tel.) +39 06 72597770 (Fax.) +39 06 72597435
*******************************************************************


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From: Martin Horneffer <maho@lab.dtag.de>
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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My opinion clearly is: The WG should standardize ONE solution for SRv6 
header compression, and it should follow to results of the DT.

Reason: As an operator I could theoretically ignore the effort vendors 
have for implementing solution that I do not care for.
In reality however that usually does takes critical ressources away from 
implementing the technology that I need.
The effect is much later interoperability.

Best regards,
Martin

Am 04.08.21 um 20:52 schrieb Joel M. Halpern:
> The SPRING Working Group Chairs thank the design team for their efforts 
> on the requirements and analysis drafts.Â  The question of how the 
> working group wants to progress that part of the work will be the topic 
> for a separate email a bit later.
> 
> Right now, we are hearing the discussion about how many solutions, and 
> the perspectives being expressed.Â  While the topic was well-raised, the 
> discussion to date has not been structured in a way that makes clear to 
> everyone what the purpose is.Â  In particular, the chairs have decided to 
> re-ask the question.Â  We ask that even those who have responded in the 
> discussion respond to this thread.Â  Preferably with both what their 
> opinion is and an explanation of why.
> 
> The question we are asking you to comment on is:
> 
> Should the working group standardize one data plane behavior for 
> compressing SRv6 information?
> 
> Please speak up.Â  We are looking to collect responses until close of 
> business PDT on 20-August-2021.
> 
> Thank you,
> Joel, Jim, and Bruno
> 
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring


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From: Martin Horneffer <maho@lab.dtag.de>
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Subject: Re: [spring] SRv6 compression
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Hi Tony,

>> If silicon sooner or later get's tailored for SRv6, can't it be made to simply parse big enough headers?
> 
> My understanding of SRv6 is that the SID list is effectively unbounded. Itâ€™s hard to grow silicon to keep up with unbounded. :-)

true, but also true for any factor x by which you reduce the header size!

In practice I think it's the operator's responsibility to think wisely 
about which header or segments they really need to add, and to account 
for them. And so far I do not see any use case that really would need 
more than a few segments.
Traffic Engineering can achieve almost the full optential with "2-SR" 
optimizations in all real-world topologies we could get hold of. And I 
doubt that service chaining with tens of steps will ever be really useful.

> The size of the SID list also affects MTU.  Every byte that you send in a SID list is one byte less of payload that fits.  This is perhaps less of a concern right now, but over time, as more folks move to larger MTUs, this will become more problematic.
> 
> The real killer is the cost in bandwidth. Please remember that every byte of SID list costs us because we have to transport it. And thereâ€™s no â€˜revenueâ€™ associated with this, itâ€™s pure overhead.
> 
> Iâ€™m old enough to remember another link layer with a high overhead: ATM. Adaptation layers, cells, the whole nine yards. The net overhead was painful. So painful that it was uncompetitive. So uncompetitive that ISPs simply turned it off and replaced it with packet over SONET. And for lower overhead, just straight Ethernet over fiber.

This argument might be valid, but personally I don't share it.

Neither for the current situation.
Even though I am with an operator who actually is the one who pays for 
the overhead. I do not consider a few % overhead as critical for chosing 
a technology. What counts much more is whether a new technology is 
available, solves an acxtually existing problem, and _robustly_ works 
and interoperates.

Nor for the historic assessment of ATM.
I have been there, too. Using STM-4/OC12 with LAN Emulation when 
Gigabit-Ethernet didn't yet exist. In my personal perception, the main 
reasons to let ATM die were:
  - Overall the idea to segment packets for transport didn't seem to pay 
off at all. Is simply wasn't well suited for packet transport. And there 
were no real use cases for services besides IP.
  - AAL5 was a pain and there were no reassembly-chips for speeds higher 
than STM-4.
  - Getting EPD was an issue, but essential for reliable and effective 
IP transport.
  - Stateful LAN Emulation caused a lot of operational problems.

IMHO the limited transport overhead was a negligible problem compared to 
those.

Best rergards,
Martin


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IDR has concluded a WG LC on draft-ietf-rfc7752bis 

on 7/31/2021 and there is consensus to publish 

this draft. 

 

Jeff Haas will be the point person for the 

shepherd write-up.  All IDR chairs (and our secretary)

will take any additional you care to share about this 

important bis draft.  

 

If the bess or spring working groups know of any errors, 

please send message to the IDR work and/or contact 

the idr chairs. 

 

Cheerily, Susan Hares  

 


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class=3DMsoNormal>on 7/31/2021 and there is consensus to publish =
<o:p></o:p></p><p class=3DMsoNormal>this draft. <o:p></o:p></p><p =
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will be the point person for the <o:p></o:p></p><p =
class=3DMsoNormal>shepherd write-up. &nbsp;All IDR chairs (and our =
secretary)<o:p></o:p></p><p class=3DMsoNormal>will take any additional =
you care to share about this <o:p></o:p></p><p =
class=3DMsoNormal>important bis draft.&nbsp; <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>If the bess =
or spring working groups know of any errors, <o:p></o:p></p><p =
class=3DMsoNormal>please send message to the IDR work and/or contact =
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Date: Fri, 6 Aug 2021 17:11:21 +0000 (UTC)
From: Boris Hassanov <bhassanov@yahoo.com>
To: "spring@ietf.org" <spring@ietf.org>,  "Joel M. Halpern" <jmh@joelhalpern.com>
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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 Hi Joel and all,
Please see my answer and comments below.
>Should the working group standardize one data plane behavior for compressi=
ng SRv6 information?
Yes, we should pick up one data plane SRv6 compression mechanism. Even if I=
t will be not an easy choice.
I have been on vendors side for a while=C2=A0 but now saying from operator =
perspective: we need one standardized solution because we do not want to st=
uck with just one vendor and do not want to solve an interop nightmare betw=
een 2 or 3=C2=A0 different mechanisms from different vendors by ourselves i=
n the nearest future.

With all respect for the all vendors who invested much in particular techno=
logy.
SY,Boris

=C2=A0
    On Wednesday, August 4, 2021, 09:52:48 PM GMT+3, Joel M. Halpern <jmh@j=
oelhalpern.com> wrote: =20
=20
 The SPRING Working Group Chairs thank the design team for their efforts=20
on the requirements and analysis drafts.=C2=A0 The question of how the=20
working group wants to progress that part of the work will be the topic=20
for a separate email a bit later.

Right now, we are hearing the discussion about how many solutions, and=20
the perspectives being expressed.=C2=A0 While the topic was well-raised, th=
e=20
discussion to date has not been structured in a way that makes clear to=20
everyone what the purpose is.=C2=A0 In particular, the chairs have decided =
to=20
re-ask the question.=C2=A0 We ask that even those who have responded in the=
=20
discussion respond to this thread.=C2=A0 Preferably with both what their=20
opinion is and an explanation of why.

The question we are asking you to comment on is:

Should the working group standardize one data plane behavior for=20
compressing SRv6 information?

Please speak up.=C2=A0 We are looking to collect responses until close of=
=20
business PDT on 20-August-2021.

Thank you,
Joel, Jim, and Bruno

_______________________________________________
spring mailing list
spring@ietf.org
https://www.ietf.org/mailman/listinfo/spring
 =20
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<html><head></head><body><div class=3D"ydpd2ba68a5yahoo-style-wrap" style=
=3D"font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 1=
3px;"><div></div>
        <div dir=3D"ltr" data-setdir=3D"false">Hi Joel and all,</div><div d=
ir=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"=
false">Please see my answer and comments below.</div><div dir=3D"ltr" data-=
setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">&gt;Shoul=
d the working group standardize one data plane behavior for compressing SRv=
6 information?<div><div dir=3D"ltr"><br style=3D"color: rgb(38, 40, 42); fo=
nt-family: Helvetica Neue, Helvetica, Arial, sans-serif;"></div></div><div =
dir=3D"ltr" data-setdir=3D"false">Yes, we should pick up one data plane SRv=
6 compression mechanism. Even if It will be not an easy choice.</div><div d=
ir=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"=
false">I have been on vendors side for a while&nbsp; but now saying from op=
erator perspective: we need one standardized solution because we do not wan=
t to stuck with just one vendor and do not want to solve an interop nightma=
re between 2 or 3&nbsp; different mechanisms from different vendors by ours=
elves in the nearest future.<br></div><div dir=3D"ltr" data-setdir=3D"false=
"><br></div><div dir=3D"ltr" data-setdir=3D"false">With all respect for the=
 all vendors who invested much in particular technology.</div><div dir=3D"l=
tr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">=
SY,</div><div dir=3D"ltr" data-setdir=3D"false">Boris</div><div dir=3D"ltr"=
 data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false"><br=
></div><div dir=3D"ltr" data-setdir=3D"false">&nbsp;</div></div><div><br></=
div>
       =20
        </div><div id=3D"ydp4b7179d1yahoo_quoted_8459797091" class=3D"ydp4b=
7179d1yahoo_quoted">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
               =20
                <div>
                    On Wednesday, August 4, 2021, 09:52:48 PM GMT+3, Joel M=
. Halpern &lt;jmh@joelhalpern.com&gt; wrote:
                </div>
                <div><br></div>
                <div><br></div>
                <div><div dir=3D"ltr">The SPRING Working Group Chairs thank=
 the design team for their efforts <br></div><div dir=3D"ltr">on the requir=
ements and analysis drafts.&nbsp; The question of how the <br></div><div di=
r=3D"ltr">working group wants to progress that part of the work will be the=
 topic <br></div><div dir=3D"ltr">for a separate email a bit later.<br></di=
v><div dir=3D"ltr"><br></div><div dir=3D"ltr">Right now, we are hearing the=
 discussion about how many solutions, and <br></div><div dir=3D"ltr">the pe=
rspectives being expressed.&nbsp; While the topic was well-raised, the <br>=
</div><div dir=3D"ltr">discussion to date has not been structured in a way =
that makes clear to <br></div><div dir=3D"ltr">everyone what the purpose is=
.&nbsp; In particular, the chairs have decided to <br></div><div dir=3D"ltr=
">re-ask the question.&nbsp; We ask that even those who have responded in t=
he <br></div><div dir=3D"ltr">discussion respond to this thread.&nbsp; Pref=
erably with both what their <br></div><div dir=3D"ltr">opinion is and an ex=
planation of why.<br></div><div dir=3D"ltr"><br></div><div dir=3D"ltr">The =
question we are asking you to comment on is:<br></div><div dir=3D"ltr"><br>=
</div><div dir=3D"ltr">Should the working group standardize one data plane =
behavior for <br></div><div dir=3D"ltr">compressing SRv6 information?<br></=
div><div dir=3D"ltr"><br></div><div dir=3D"ltr">Please speak up.&nbsp; We a=
re looking to collect responses until close of <br></div><div dir=3D"ltr">b=
usiness PDT on 20-August-2021.<br></div><div dir=3D"ltr"><br></div><div dir=
=3D"ltr">Thank you,<br></div><div dir=3D"ltr">Joel, Jim, and Bruno<br></div=
><div dir=3D"ltr"><br></div><div dir=3D"ltr">______________________________=
_________________<br></div><div dir=3D"ltr">spring mailing list<br></div><d=
iv dir=3D"ltr"><a href=3D"mailto:spring@ietf.org" rel=3D"nofollow" target=
=3D"_blank">spring@ietf.org</a><br></div><div dir=3D"ltr"><a href=3D"https:=
//www.ietf.org/mailman/listinfo/spring" rel=3D"nofollow" target=3D"_blank">=
https://www.ietf.org/mailman/listinfo/spring</a><br></div></div>
            </div>
        </div></body></html>
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In-Reply-To: <338165821.123035.1628269881366@mail.yahoo.com>
From: "Luis M. Contreras" <contreras.ietf@gmail.com>
Date: Fri, 6 Aug 2021 20:07:09 +0200
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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+1

Best regards

Luis


El vie., 6 ago. 2021 19:12, Boris Hassanov <bhassanov=3D
40yahoo.com@dmarc.ietf.org> escribi=C3=B3:

> Hi Joel and all,
>
> Please see my answer and comments below.
>
> >Should the working group standardize one data plane behavior for
> compressing SRv6 information?
>
> Yes, we should pick up one data plane SRv6 compression mechanism. Even if
> It will be not an easy choice.
>
> I have been on vendors side for a while  but now saying from operator
> perspective: we need one standardized solution because we do not want to
> stuck with just one vendor and do not want to solve an interop nightmare
> between 2 or 3  different mechanisms from different vendors by ourselves =
in
> the nearest future.
>
> With all respect for the all vendors who invested much in particular
> technology.
>
> SY,
> Boris
>
>
>
>
> On Wednesday, August 4, 2021, 09:52:48 PM GMT+3, Joel M. Halpern <
> jmh@joelhalpern.com> wrote:
>
>
> The SPRING Working Group Chairs thank the design team for their efforts
> on the requirements and analysis drafts.  The question of how the
> working group wants to progress that part of the work will be the topic
> for a separate email a bit later.
>
> Right now, we are hearing the discussion about how many solutions, and
> the perspectives being expressed.  While the topic was well-raised, the
> discussion to date has not been structured in a way that makes clear to
> everyone what the purpose is.  In particular, the chairs have decided to
> re-ask the question.  We ask that even those who have responded in the
> discussion respond to this thread.  Preferably with both what their
> opinion is and an explanation of why.
>
> The question we are asking you to comment on is:
>
> Should the working group standardize one data plane behavior for
> compressing SRv6 information?
>
> Please speak up.  We are looking to collect responses until close of
> business PDT on 20-August-2021.
>
> Thank you,
> Joel, Jim, and Bruno
>
> _______________________________________________
> 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
>

--00000000000003e65f05c8e7e96c
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"auto">+1<div dir=3D"auto"><br></div><div dir=3D"auto">Best rega=
rds</div><div dir=3D"auto"><br></div><div dir=3D"auto">Luis</div><div dir=
=3D"auto"><br></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" c=
lass=3D"gmail_attr">El vie., 6 ago. 2021 19:12, Boris Hassanov &lt;bhassano=
v=3D<a href=3D"mailto:40yahoo.com@dmarc.ietf.org">40yahoo.com@dmarc.ietf.or=
g</a>&gt; escribi=C3=B3:<br></div><blockquote class=3D"gmail_quote" style=
=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><di=
v style=3D"font-family:Helvetica Neue,Helvetica,Arial,sans-serif;font-size:=
13px"><div></div>
        <div dir=3D"ltr">Hi Joel and all,</div><div dir=3D"ltr"><br></div><=
div dir=3D"ltr">Please see my answer and comments below.</div><div dir=3D"l=
tr"><br></div><div dir=3D"ltr">&gt;Should the working group standardize one=
 data plane behavior for compressing SRv6 information?<div><div dir=3D"ltr"=
><br style=3D"color:rgb(38,40,42);font-family:Helvetica Neue,Helvetica,Aria=
l,sans-serif"></div></div><div dir=3D"ltr">Yes, we should pick up one data =
plane SRv6 compression mechanism. Even if It will be not an easy choice.</d=
iv><div dir=3D"ltr"><br></div><div dir=3D"ltr">I have been on vendors side =
for a while=C2=A0 but now saying from operator perspective: we need one sta=
ndardized solution because we do not want to stuck with just one vendor and=
 do not want to solve an interop nightmare between 2 or 3=C2=A0 different m=
echanisms from different vendors by ourselves in the nearest future.<br></d=
iv><div dir=3D"ltr"><br></div><div dir=3D"ltr">With all respect for the all=
 vendors who invested much in particular technology.</div><div dir=3D"ltr">=
<br></div><div dir=3D"ltr">SY,</div><div dir=3D"ltr">Boris</div><div dir=3D=
"ltr"><br></div><div dir=3D"ltr"><br></div><div dir=3D"ltr">=C2=A0</div></d=
iv><div><br></div>
       =20
        </div><div id=3D"m_-6945130244902213294ydp4b7179d1yahoo_quoted_8459=
797091">
            <div style=3D"font-family:&#39;Helvetica Neue&#39;,Helvetica,Ar=
ial,sans-serif;font-size:13px;color:#26282a">
               =20
                <div>
                    On Wednesday, August 4, 2021, 09:52:48 PM GMT+3, Joel M=
. Halpern &lt;<a href=3D"mailto:jmh@joelhalpern.com" target=3D"_blank" rel=
=3D"noreferrer">jmh@joelhalpern.com</a>&gt; wrote:
                </div>
                <div><br></div>
                <div><br></div>
                <div><div dir=3D"ltr">The SPRING Working Group Chairs thank=
 the design team for their efforts <br></div><div dir=3D"ltr">on the requir=
ements and analysis drafts.=C2=A0 The question of how the <br></div><div di=
r=3D"ltr">working group wants to progress that part of the work will be the=
 topic <br></div><div dir=3D"ltr">for a separate email a bit later.<br></di=
v><div dir=3D"ltr"><br></div><div dir=3D"ltr">Right now, we are hearing the=
 discussion about how many solutions, and <br></div><div dir=3D"ltr">the pe=
rspectives being expressed.=C2=A0 While the topic was well-raised, the <br>=
</div><div dir=3D"ltr">discussion to date has not been structured in a way =
that makes clear to <br></div><div dir=3D"ltr">everyone what the purpose is=
.=C2=A0 In particular, the chairs have decided to <br></div><div dir=3D"ltr=
">re-ask the question.=C2=A0 We ask that even those who have responded in t=
he <br></div><div dir=3D"ltr">discussion respond to this thread.=C2=A0 Pref=
erably with both what their <br></div><div dir=3D"ltr">opinion is and an ex=
planation of why.<br></div><div dir=3D"ltr"><br></div><div dir=3D"ltr">The =
question we are asking you to comment on is:<br></div><div dir=3D"ltr"><br>=
</div><div dir=3D"ltr">Should the working group standardize one data plane =
behavior for <br></div><div dir=3D"ltr">compressing SRv6 information?<br></=
div><div dir=3D"ltr"><br></div><div dir=3D"ltr">Please speak up.=C2=A0 We a=
re looking to collect responses until close of <br></div><div dir=3D"ltr">b=
usiness PDT on 20-August-2021.<br></div><div dir=3D"ltr"><br></div><div dir=
=3D"ltr">Thank you,<br></div><div dir=3D"ltr">Joel, Jim, and Bruno<br></div=
><div dir=3D"ltr"><br></div><div dir=3D"ltr">______________________________=
_________________<br></div><div dir=3D"ltr">spring mailing list<br></div><d=
iv dir=3D"ltr"><a href=3D"mailto:spring@ietf.org" rel=3D"nofollow noreferre=
r" target=3D"_blank">spring@ietf.org</a><br></div><div dir=3D"ltr"><a href=
=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"nofollow noreferre=
r" target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><br></=
div></div>
            </div>
        </div></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: Vasilenko Eduard <vasilenko.eduard@huawei.com>
To: "Luis M. Contreras" <contreras.ietf@gmail.com>, Boris Hassanov <bhassanov=40yahoo.com@dmarc.ietf.org>
CC: SPRING WG List <spring@ietf.org>, "Joel M. Halpern" <jmh@joelhalpern.com>
Thread-Topic: [spring] Progressing Standardizing SR over IPv6 compression
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Date: Fri, 6 Aug 2021 19:29:35 +0000
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From: Tetsuya Murakami <tetsuya.ietf@gmail.com>
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Subject: Re: [spring] SRv6  compression
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I really appreciate the good achievement done by the DT members.=20

I also prefer to pick up a single solution. Based on SRCOMP =
presentation, only CSID can meet all requirements and already there is =
open source code supporting CSID. Hence, I think it is ready for WG to =
proceed with the adoption of CSID.

Thanks,
Tetsuya

> On Jul 27, 2021, at 12:11 AM, Henderickx, Wim (Nokia - BE/Antwerp) =
<wim.henderickx@nokia.com> wrote:
>=20
> Given the design team accomplished the work on providing requirements =
and analysis to compress an SRv6 SID list, I would recommend we pick 1 =
solution similar to what was done in NVO3 (when we discussed GENEVE, =
GUE, GPE, etc) given this has to be implemented in HW..
> =20
> I hope we can conclude on this asap and move forward on this topic=20
> =20
> _______________________________________________
> spring mailing list
> spring@ietf.org <mailto:spring@ietf.org>
> https://www.ietf.org/mailman/listinfo/spring =
<https://www.ietf.org/mailman/listinfo/spring>

--Apple-Mail=_9E6B6D0C-6C7B-4351-A47F-6A4967D6A831
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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"">I =
really appreciate the good achievement done by the DT members.&nbsp;<div =
class=3D""><br class=3D""></div><div class=3D"">I also prefer to pick up =
a single solution. Based on SRCOMP presentation, only CSID can meet all =
requirements and already there is open source code supporting CSID. =
Hence, I think it is ready for WG to proceed with the adoption of =
CSID.<br class=3D""><div><br =
class=3D""></div><div>Thanks,</div><div>Tetsuya</div><div><br =
class=3D""><blockquote type=3D"cite" class=3D""><div class=3D"">On Jul =
27, 2021, at 12:11 AM, Henderickx, Wim (Nokia - BE/Antwerp) &lt;<a =
href=3D"mailto:wim.henderickx@nokia.com" =
class=3D"">wim.henderickx@nokia.com</a>&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><meta =
charset=3D"UTF-8" 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;"><div style=3D"margin: 0cm; font-size: 11pt; font-family: Calibri, =
sans-serif;" class=3D""><span lang=3D"EN-US" style=3D"" class=3D"">Given =
the design team accomplished the work on providing requirements and =
analysis<span class=3D"Apple-converted-space">&nbsp;</span></span><span =
style=3D"" class=3D"">to compress an SRv6 SID list</span><span =
lang=3D"EN-US" style=3D"" class=3D"">, I would recommend we pick 1 =
solution similar to what was done in NVO3 (when we discussed GENEVE, =
GUE, GPE, etc) given this has to be implemented in HW..<o:p =
class=3D""></o:p></span></div><div style=3D"margin: 0cm; font-size: =
11pt; font-family: Calibri, sans-serif;" class=3D""><span lang=3D"EN-US" =
style=3D"" class=3D""><o:p class=3D"">&nbsp;</o:p></span></div><div =
style=3D"margin: 0cm; font-size: 11pt; font-family: Calibri, =
sans-serif;" class=3D""><span lang=3D"EN-US" style=3D"" class=3D"">I =
hope we can conclude on this asap and move forward on this =
topic</span><span style=3D"" class=3D"">&nbsp;</span><span =
style=3D"font-size: 12pt;" class=3D""><o:p =
class=3D""></o:p></span></div><div style=3D"margin: 0cm; font-size: =
11pt; font-family: Calibri, sans-serif;" class=3D""><span lang=3D"EN-US" =
style=3D"" class=3D""><o:p class=3D"">&nbsp;</o:p></span></div></div><span=
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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: =
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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: =
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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"font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-caps: normal; =
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start; 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"">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: =
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text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none;" class=3D""><a =
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none; white-space: normal; widows: auto; word-spacing: 0px; =
-webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" =
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<html><head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859-=
1"><style>body { line-height: 1.5; }blockquote { margin-top: 0px; margin-bo=
ttom: 0px; margin-left: 0.5em; }body { font-size: 10.5pt; font-family: ????=
; color: rgb(0, 0, 0); line-height: 1.5; }</style></head><body>=0A=
<div><span></span>Yes,&nbsp;<span style=3D"font-size: 10.5pt; line-height: =
1.5; background-color: transparent;">the working group SHOULD standardize o=
ne data plane behavior for&nbsp;</span><span style=3D"font-size: 10.5pt; li=
ne-height: 1.5; background-color: transparent;">compressing SRv6 informatio=
n.</span></div>=0A=
<div><br></div><hr style=3D"width: 210px; height: 1px;" color=3D"#b5c4df" s=
ize=3D"1" align=3D"left">=0A=
<div><span><div style=3D"MARGIN: 10px; FONT-FAMILY: verdana; FONT-SIZE: 10p=
t"><div>li_zhenqiang@hotmail.com</div></div></span></div>=0A=
<blockquote style=3D"margin-Top: 0px; margin-Bottom: 0px; margin-Left: 0.5e=
m"><div>&nbsp;</div><div style=3D"border:none;border-top:solid #B5C4DF 1.0p=
t;padding:3.0pt 0cm 0cm 0cm"><div style=3D"PADDING-RIGHT: 8px; PADDING-LEFT=
: 8px; FONT-SIZE: 12px;FONT-FAMILY:tahoma;COLOR:#000000; BACKGROUND: #efefe=
f; PADDING-BOTTOM: 8px; PADDING-TOP: 8px"><div><b>From:</b>&nbsp;<a href=3D=
"mailto:jmh@joelhalpern.com">Joel M. Halpern</a></div><div><b>Date:</b>&nbs=
p;2021-08-05&nbsp;02:52</div><div><b>To:</b>&nbsp;<a href=3D"mailto:spring@=
ietf.org">spring@ietf.org</a></div><div><b>Subject:</b>&nbsp;[spring] Progr=
essing Standardizing SR over IPv6 compression</div></div></div><div><div>Th=
e SPRING Working Group Chairs thank the design team for their efforts </div=
>=0A=
<div>on the requirements and analysis drafts.&nbsp; The question of how the=
 </div>=0A=
<div>working group wants to progress that part of the work will be the topi=
c </div>=0A=
<div>for a separate email a bit later.</div>=0A=
<div>&nbsp;</div>=0A=
<div>Right now, we are hearing the discussion about how many solutions, and=
 </div>=0A=
<div>the perspectives being expressed.&nbsp; While the topic was well-raise=
d, the </div>=0A=
<div>discussion to date has not been structured in a way that makes clear t=
o </div>=0A=
<div>everyone what the purpose is.&nbsp; In particular, the chairs have dec=
ided to </div>=0A=
<div>re-ask the question.&nbsp; We ask that even those who have responded i=
n the </div>=0A=
<div>discussion respond to this thread.&nbsp; Preferably with both what the=
ir </div>=0A=
<div>opinion is and an explanation of why.</div>=0A=
<div>&nbsp;</div>=0A=
<div>The question we are asking you to comment on is:</div>=0A=
<div>&nbsp;</div>=0A=
<div>Should the working group standardize one data plane behavior for </div=
>=0A=
<div>compressing SRv6 information?</div>=0A=
<div>&nbsp;</div>=0A=
<div>Please speak up.&nbsp; We are looking to collect responses until close=
 of </div>=0A=
<div>business PDT on 20-August-2021.</div>=0A=
<div>&nbsp;</div>=0A=
<div>Thank you,</div>=0A=
<div>Joel, Jim, and Bruno</div>=0A=
<div>&nbsp;</div>=0A=
<div>_______________________________________________</div>=0A=
<div>spring mailing list</div>=0A=
<div>spring@ietf.org</div>=0A=
<div>https://www.ietf.org/mailman/listinfo/spring</div>=0A=
</div></blockquote>=0A=
</body></html>=

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From: "Aijun Wang" <wangaijun@tsinghua.org.cn>
To: "'Joel M. Halpern'" <jmh@joelhalpern.com>, <spring@ietf.org>
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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The answer to the question is: 

Yes. 
Having more data plane behaviors requires the operator to solve the
interoperability issues, or all vendors supports all solutions. 
Such results should be avoided by the efforts of standard community.

Best Regards

Aijun Wang
China Telecom

-----Original Message-----
From: spring-bounces@ietf.org <spring-bounces@ietf.org> On Behalf Of Joel M.
Halpern
Sent: Thursday, August 5, 2021 2:52 AM
To: spring@ietf.org
Subject: [spring] Progressing Standardizing SR over IPv6 compression

The SPRING Working Group Chairs thank the design team for their efforts on
the requirements and analysis drafts.  The question of how the working group
wants to progress that part of the work will be the topic for a separate
email a bit later.

Right now, we are hearing the discussion about how many solutions, and the
perspectives being expressed.  While the topic was well-raised, the
discussion to date has not been structured in a way that makes clear to
everyone what the purpose is.  In particular, the chairs have decided to
re-ask the question.  We ask that even those who have responded in the
discussion respond to this thread.  Preferably with both what their opinion
is and an explanation of why.

The question we are asking you to comment on is:

Should the working group standardize one data plane behavior for compressing
SRv6 information?
Please speak up.  We are looking to collect responses until close of
business PDT on 20-August-2021.

Thank you,
Joel, Jim, and Bruno

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


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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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Hi, folks,
As one member of design team,  I am pleased that two drafts has been =
produced by the members with more than 1 year effort.  Support has also =
been received from outside of the DT during the past year, thanks.  =46rom=
 the perspective of one operator, I believe that the standardization of =
one data plane for compressed SRv6 will be better for the whole =
industry.

Best regards
Chongfeng

> 2021=E5=B9=B48=E6=9C=885=E6=97=A5 =E4=B8=8A=E5=8D=882:52=EF=BC=8CJoel =
M. Halpern <jmh@joelhalpern.com> =E5=86=99=E9=81=93=EF=BC=9A
>=20
> The SPRING Working Group Chairs thank the design team for their =
efforts on the requirements and analysis drafts.  The question of how =
the working group wants to progress that part of the work will be the =
topic for a separate email a bit later.
>=20
> Right now, we are hearing the discussion about how many solutions, and =
the perspectives being expressed.  While the topic was well-raised, the =
discussion to date has not been structured in a way that makes clear to =
everyone what the purpose is.  In particular, the chairs have decided to =
re-ask the question.  We ask that even those who have responded in the =
discussion respond to this thread.  Preferably with both what their =
opinion is and an explanation of why.
>=20
> The question we are asking you to comment on is:
>=20
> Should the working group standardize one data plane behavior for =
compressing SRv6 information?
>=20
> Please speak up.  We are looking to collect responses until close of =
business PDT on 20-August-2021.
>=20
> Thank you,
> Joel, Jim, and Bruno
>=20
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>=20


--Apple-Mail=_9C1E7F29-C17C-4BF1-BCCA-CA42355C97C3
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" class=3D""><div =
style=3D"margin: 0px; font-stretch: normal; font-size: 13px; =
line-height: normal; font-family: &quot;Helvetica Neue&quot;;" =
class=3D"">Hi, folks,</div><div style=3D"margin: 0px; font-stretch: =
normal; font-size: 13px; line-height: normal; font-family: =
&quot;Helvetica Neue&quot;;" class=3D"">As one member of design =
team,&nbsp; I am pleased that two drafts has been produced by the =
members with more than 1 year effort.&nbsp; Support has also been =
received from outside of the DT during the past year, thanks.&nbsp; =46rom=
 the perspective of one operator, I believe that the standardization of =
one data plane for compressed SRv6 will be better for the whole =
industry.</div><div style=3D"margin: 0px; font-stretch: normal; =
font-size: 13px; line-height: normal; font-family: &quot;Helvetica =
Neue&quot;; min-height: 15px;" class=3D""><br class=3D""></div><div =
style=3D"margin: 0px; font-stretch: normal; font-size: 13px; =
line-height: normal; font-family: &quot;Helvetica Neue&quot;;" =
class=3D"">Best regards</div><div style=3D"margin: 0px; font-stretch: =
normal; font-size: 13px; line-height: normal; font-family: =
&quot;Helvetica Neue&quot;;" class=3D"">Chongfeng</div><div =
style=3D"margin: 0px; font-stretch: normal; font-size: 13px; =
line-height: normal; font-family: &quot;Helvetica Neue&quot;;" =
class=3D""><br class=3D""></div><div><blockquote type=3D"cite" =
class=3D""><div class=3D"">2021=E5=B9=B48=E6=9C=885=E6=97=A5 =
=E4=B8=8A=E5=8D=882:52=EF=BC=8CJoel M. Halpern &lt;<a =
href=3D"mailto:jmh@joelhalpern.com" class=3D"">jmh@joelhalpern.com</a>&gt;=
 =E5=86=99=E9=81=93=EF=BC=9A</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><div class=3D"">The =
SPRING Working Group Chairs thank the design team for their efforts on =
the requirements and analysis drafts. &nbsp;The question of how the =
working group wants to progress that part of the work will be the topic =
for a separate email a bit later.<br class=3D""><br class=3D"">Right =
now, we are hearing the discussion about how many solutions, and the =
perspectives being expressed. &nbsp;While the topic was well-raised, the =
discussion to date has not been structured in a way that makes clear to =
everyone what the purpose is. &nbsp;In particular, the chairs have =
decided to re-ask the question. &nbsp;We ask that even those who have =
responded in the discussion respond to this thread. &nbsp;Preferably =
with both what their opinion is and an explanation of why.<br =
class=3D""><br class=3D"">The question we are asking you to comment on =
is:<br class=3D""><br class=3D"">Should the working group standardize =
one data plane behavior for compressing SRv6 information?<br =
class=3D""><br class=3D"">Please speak up. &nbsp;We are looking to =
collect responses until close of business PDT on 20-August-2021.<br =
class=3D""><br class=3D"">Thank you,<br class=3D"">Joel, Jim, and =
Bruno<br class=3D""><br =
class=3D"">_______________________________________________<br =
class=3D"">spring mailing list<br class=3D""><a =
href=3D"mailto:spring@ietf.org" class=3D"">spring@ietf.org</a><br =
class=3D"">https://www.ietf.org/mailman/listinfo/spring<br class=3D""><br =
class=3D""></div></div></blockquote></div><br class=3D""></body></html>=

--Apple-Mail=_9C1E7F29-C17C-4BF1-BCCA-CA42355C97C3--


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From: Dhruv Dhody <dhruv.ietf@gmail.com>
Date: Wed, 11 Aug 2021 23:25:48 +0530
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To: James Guichard <james.n.guichard@futurewei.com>
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Subject: Re: [spring] WGLC for https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/
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Hi,

I support the WGLC for draft-ietf-spring-mpls-path-segment. Please find my
=E2=80=9Clate=E2=80=9D comments. Hope they are still useful.
<https://notes.ietf.org/#Minor>Minor

   - Section 2
      - The below text requires some more explanation

   The Path Segment may be used to identify an SR-MPLS Policy, its
   Candidate-Path (CP), or a SID List (SL)

   - The document says Path Segment =E2=80=9Cuniquely identify an SR path=
=E2=80=9D, so how
      does that apply to SR policy/CP (which can have multiple paths)
needs to be
      explicit.
   - Section 2
      - This text

   Normally, the intermediate nodes will not see the Path Segment label
   and do not know how to process it. A Path Segment presenting to an
   intermediate node is an error condition.

   - Path segment is just another label with no special marking, and since
      it is from the egress label space it is possible that the same label =
is
      used by the transit node for some other purpose. Not sure about =E2=
=80=9Cdo not
      know how to process it=E2=80=9D, is there a better way to frame this?
   - Section 8
      - This needs to be expanded. The path segment does carry a label in
      the packet that can be used to identify the flows that are using a
      particular path. The path segment in the control plane could also be
      exploited for incorrect correlation between paths.

<https://notes.ietf.org/#Nits>Nits

   - Add references in the terminology section 1.2
   - Add references for SRLB/SRGB [RFC8402]
   - Section 2
      - s/SR-MPLS Policy/SR Policy/
   - Section 3
      - s/Path Computation Element Protocol (PCEP)/Path Computation Element
      Communication Protocol (PCEP)/
   - Section 5
      - s/[I-D.gandhi-mpls-ioam-sr]/[I-D.gandhi-mpls-ioam]
      - s/[I-D.gandhi-spring-stamp-srpm]/[I-D.ietf-spring-stamp-srpm]

Thanks!
Dhruv

On Wed, Jul 7, 2021 at 9:19 PM James Guichard <
james.n.guichard@futurewei.com> wrote:

> Dear WG:
>
>
>
> This email starts a 2 week Working Group Last Call for
> draft-ietf-spring-mpls-path-segment [1].
>
>
>
> Please read this document if you haven=E2=80=99t read the most recent ver=
sion and
> send your comments to the SPRING WG list no later than July 21st 2021.
>
>
>
> If you are raising a point which you expect will be specifically debated
> on the mailing list, consider using a specific email/thread for this poin=
t.
>
>
>
> Lastly, if you are an author or contributor please response to indicate
> whether you know of any undisclosed IPR related to this document.
>
>
>
> Thanks!
>
>
>
> Jim, Joel & Bruno
>
>
>
> [1] https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/
>
>
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>
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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"color:rgb(7,55,99)">=
<p class=3D"gmail-part" style=3D"box-sizing:border-box;margin:0px 0px 16px;=
color:rgb(51,51,51);letter-spacing:0.35px"><font face=3D"trebuchet ms, sans=
-serif">Hi,</font></p><p class=3D"gmail-part" style=3D"box-sizing:border-bo=
x;margin:0px 0px 16px;color:rgb(51,51,51);letter-spacing:0.35px"><font face=
=3D"trebuchet ms, sans-serif">I support the WGLC for draft-ietf-spring-mpls=
-path-segment. Please find my =E2=80=9Clate=E2=80=9D comments. Hope they ar=
e still useful.</font></p><h3 class=3D"gmail-part" id=3D"gmail-Minor" style=
=3D"box-sizing:border-box;line-height:1.25;color:rgb(51,51,51);margin-top:2=
4px;margin-bottom:16px;letter-spacing:0.35px"><a class=3D"gmail-anchor gmai=
l-hidden-xs" href=3D"https://notes.ietf.org/#Minor" title=3D"Minor" style=
=3D"box-sizing:border-box;background-color:transparent;color:rgb(51,122,183=
);text-decoration-line:none;float:left;padding-right:4px;line-height:1"><fo=
nt size=3D"2" face=3D"trebuchet ms, sans-serif"><span class=3D"gmail-fa gma=
il-fa-link" style=3D"box-sizing:border-box;display:inline-block;font-varian=
t-numeric:normal;font-variant-east-asian:normal;font-weight:normal;font-str=
etch:normal;line-height:1;color:rgb(0,0,0);vertical-align:middle"></span></=
font></a><font size=3D"2" face=3D"trebuchet ms, sans-serif">Minor</font></h=
3><ul class=3D"gmail-part" style=3D"box-sizing:border-box;margin-top:0px;ma=
rgin-bottom:16px;padding-left:2em;color:rgb(51,51,51);letter-spacing:0.35px=
"><li class=3D"gmail-" style=3D"box-sizing:border-box"><font face=3D"trebuc=
het ms, sans-serif">Section 2</font><ul style=3D"box-sizing:border-box;marg=
in-top:0px;margin-bottom:0px;padding-left:2em"><li class=3D"gmail-" style=
=3D"box-sizing:border-box"><font face=3D"trebuchet ms, sans-serif">The belo=
w text requires some more explanation</font></li></ul><blockquote class=3D"=
gmail-" style=3D"box-sizing:border-box;padding:0px 1em;margin:0px 0px 16px;=
border-left:0.25em solid rgb(221,221,221);color:rgb(119,119,119)"><p style=
=3D"box-sizing:border-box;margin:0px"><font face=3D"trebuchet ms, sans-seri=
f">The Path Segment may be used to identify an SR-MPLS Policy, its Candidat=
e-Path (CP), or a SID List (SL)</font></p></blockquote><ul style=3D"box-siz=
ing:border-box;margin-top:0px;margin-bottom:0px;padding-left:2em"><li class=
=3D"gmail-" style=3D"box-sizing:border-box"><font face=3D"trebuchet ms, san=
s-serif">The document says Path Segment =E2=80=9Cuniquely identify an SR pa=
th=E2=80=9D, so how does that apply to SR policy/CP (which can have multipl=
e paths) needs to be explicit.</font></li></ul></li><li class=3D"gmail-" st=
yle=3D"box-sizing:border-box;margin-top:0.25em"><font face=3D"trebuchet ms,=
 sans-serif">Section 2</font><ul style=3D"box-sizing:border-box;margin-top:=
0px;margin-bottom:0px;padding-left:2em"><li class=3D"gmail-" style=3D"box-s=
izing:border-box"><font face=3D"trebuchet ms, sans-serif">This text</font><=
/li></ul><blockquote class=3D"gmail-" style=3D"box-sizing:border-box;paddin=
g:0px 1em;margin:0px 0px 16px;border-left:0.25em solid rgb(221,221,221);col=
or:rgb(119,119,119)"><p style=3D"box-sizing:border-box;margin:0px"><font fa=
ce=3D"trebuchet ms, sans-serif">Normally, the intermediate nodes will not s=
ee the Path Segment label<br style=3D"box-sizing:border-box">and do not kno=
w how to process it. A Path Segment presenting to an<br style=3D"box-sizing=
:border-box">intermediate node is an error condition.</font></p></blockquot=
e><ul style=3D"box-sizing:border-box;margin-top:0px;margin-bottom:0px;paddi=
ng-left:2em"><li class=3D"gmail-" style=3D"box-sizing:border-box"><font fac=
e=3D"trebuchet ms, sans-serif">Path segment is just another label with no s=
pecial marking, and since it is from the egress label space it is possible =
that the same label is used by the transit node for some other purpose. Not=
 sure about =E2=80=9Cdo not know how to process it=E2=80=9D, is there a bet=
ter way to frame this?</font></li></ul></li><li class=3D"gmail-" style=3D"b=
ox-sizing:border-box;margin-top:0.25em"><font face=3D"trebuchet ms, sans-se=
rif">Section 8</font><ul style=3D"box-sizing:border-box;margin-top:0px;marg=
in-bottom:0px;padding-left:2em"><li class=3D"gmail-" style=3D"box-sizing:bo=
rder-box"><font face=3D"trebuchet ms, sans-serif">This needs to be expanded=
. The path segment does carry a label in the packet that can be used to ide=
ntify the flows that are using a particular path. The path segment in the c=
ontrol plane could also be exploited for incorrect correlation between path=
s.</font></li></ul></li></ul><h3 class=3D"gmail-part" id=3D"gmail-Nits" sty=
le=3D"box-sizing:border-box;line-height:1.25;color:rgb(51,51,51);margin-top=
:24px;margin-bottom:16px;letter-spacing:0.35px"><a class=3D"gmail-anchor gm=
ail-hidden-xs" href=3D"https://notes.ietf.org/#Nits" title=3D"Nits" style=
=3D"box-sizing:border-box;background-color:transparent;color:rgb(51,122,183=
);text-decoration-line:none;float:left;padding-right:4px;line-height:1"><fo=
nt size=3D"2" face=3D"trebuchet ms, sans-serif"><span class=3D"gmail-fa gma=
il-fa-link" style=3D"box-sizing:border-box;display:inline-block;font-varian=
t-numeric:normal;font-variant-east-asian:normal;font-weight:normal;font-str=
etch:normal;line-height:1;color:rgb(0,0,0);vertical-align:middle"></span></=
font></a><font size=3D"2" face=3D"trebuchet ms, sans-serif">Nits</font></h3=
><ul class=3D"gmail-part" style=3D"box-sizing:border-box;margin-top:0px;mar=
gin-bottom:16px;padding-left:2em;color:rgb(51,51,51);letter-spacing:0.35px"=
><li class=3D"gmail-" style=3D"box-sizing:border-box"><font face=3D"trebuch=
et ms, sans-serif">Add references in the terminology section 1.2</font></li=
><li class=3D"gmail-" style=3D"box-sizing:border-box;margin-top:0.25em"><fo=
nt face=3D"trebuchet ms, sans-serif">Add references for SRLB/SRGB [RFC8402]=
</font></li><li class=3D"gmail-" style=3D"box-sizing:border-box;margin-top:=
0.25em"><font face=3D"trebuchet ms, sans-serif">Section 2</font><ul style=
=3D"box-sizing:border-box;margin-top:0px;margin-bottom:0px;padding-left:2em=
"><li class=3D"gmail-" style=3D"box-sizing:border-box"><font face=3D"trebuc=
het ms, sans-serif">s/SR-MPLS Policy/SR Policy/</font></li></ul></li><li cl=
ass=3D"gmail-" style=3D"box-sizing:border-box;margin-top:0.25em"><font face=
=3D"trebuchet ms, sans-serif">Section 3</font><ul style=3D"box-sizing:borde=
r-box;margin-top:0px;margin-bottom:0px;padding-left:2em"><li class=3D"gmail=
-" style=3D"box-sizing:border-box"><font face=3D"trebuchet ms, sans-serif">=
s/Path Computation Element Protocol (PCEP)/Path Computation Element Communi=
cation Protocol (PCEP)/</font></li></ul></li><li class=3D"gmail-" style=3D"=
box-sizing:border-box;margin-top:0.25em"><font face=3D"trebuchet ms, sans-s=
erif">Section 5</font><ul style=3D"box-sizing:border-box;margin-top:0px;mar=
gin-bottom:0px;padding-left:2em"><li class=3D"gmail-" style=3D"box-sizing:b=
order-box"><font face=3D"trebuchet ms, sans-serif">s/[I-D.gandhi-mpls-ioam-=
sr]/[I-D.gandhi-mpls-ioam]</font></li><li class=3D"gmail-" style=3D"box-siz=
ing:border-box;margin-top:0.25em"><font face=3D"trebuchet ms, sans-serif">s=
/[I-D.gandhi-spring-stamp-srpm]/[I-D.ietf-spring-stamp-srpm]</font></li></u=
l></li></ul><p class=3D"gmail-part" style=3D"box-sizing:border-box;margin:0=
px;color:rgb(51,51,51);letter-spacing:0.35px"><font face=3D"trebuchet ms, s=
ans-serif">Thanks!<br style=3D"box-sizing:border-box">Dhruv</font></p></div=
></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr"=
>On Wed, Jul 7, 2021 at 9:19 PM James Guichard &lt;<a href=3D"mailto:james.=
n.guichard@futurewei.com">james.n.guichard@futurewei.com</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">





<div lang=3D"EN-US">
<div class=3D"gmail-m_7902569718451779264WordSection1">
<p class=3D"MsoNormal">Dear WG:<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">This email starts a 2 week Working Group Last Call f=
or draft-ietf-spring-mpls-path-segment [1].<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Please read this document if you haven=E2=80=99t rea=
d the most recent version and send your comments to the SPRING WG list no l=
ater than July 21<sup>st</sup> 2021.
<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><span style=3D"color:rgb(33,37,41)">If you are raisi=
ng a point which you expect will be specifically debated on the mailing lis=
t, consider using a specific email/thread for this point.<u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span style=3D"color:rgb(33,37,41)"><u></u>=C2=A0<u>=
</u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:rgb(33,37,41)">Lastly, if you a=
re an author or contributor please response to indicate whether you know of=
 any undisclosed IPR related to this document.
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Thanks!<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Jim, Joel &amp; Bruno<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal" style=3D"background:white"><span style=3D"color:blac=
k">[1] <a href=3D"https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-p=
ath-segment/" target=3D"_blank">
https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/</a><u=
></u><u></u></span></p>
<p class=3D"MsoNormal" style=3D"background:white"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
</div>

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

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Date: Fri, 13 Aug 2021 16:17:04 +0300
From: "Ville Hallivuori" <vph@iki.fi>
To: "Joel M. Halpern" <jmh@joelhalpern.com>, "spring@ietf.org" <spring@ietf.org>
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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Hello,

> Should the working group standardize one data plane behavior for 
> compressing SRv6 information?

Yes! Single data plane option is desirable. Any more is unnecessary complexity in forwarding silicon or wasted microcode space.

BR,
Ville Hallivuori


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A new Request for Comments is now available in online RFC libraries.

        
        RFC 9087

        Title:      Segment Routing Centralized BGP Egress 
                    Peer Engineering 
        Author:     C. Filsfils, Ed.,
                    S. Previdi,
                    G. Dawra, Ed.,
                    E. Aries,
                    D. Afanasiev
        Status:     Informational
        Stream:     IETF
        Date:       August 2021
        Mailbox:    cfilsfil@cisco.com,
                    stefano@previdi.net,
                    gdawra.ietf@gmail.com,
                    exa@juniper.net,
                    fl0w@yandex-team.ru
        Pages:      17
        Updates/Obsoletes/SeeAlso:   None

        I-D Tag:    draft-ietf-spring-segment-routing-central-epe-10.txt

        URL:        https://www.rfc-editor.org/info/rfc9087

        DOI:        10.17487/RFC9087

Segment Routing (SR) leverages source routing. A node steers a packet
through a controlled set of instructions, called segments, by
prepending the packet with an SR header. A segment can represent any
instruction, topological or service based. SR allows for the
enforcement of a flow through any topological path while maintaining
per-flow state only at the ingress node of the SR domain.

The Segment Routing architecture can be directly applied to the MPLS
data plane with no change on the forwarding plane. It requires a
minor extension to the existing link-state routing protocols.

This document illustrates the application of Segment Routing to solve
the BGP Egress Peer Engineering (BGP-EPE) requirement. The SR-based
BGP-EPE solution allows a centralized (Software-Defined Networking,
or SDN) controller to program any egress peer policy at ingress
border routers or at hosts within the domain.

This document is a product of the Source Packet Routing in Networking Working Group of the IETF.


INFORMATIONAL: This memo provides information for the Internet community.
It does not specify an Internet standard of any kind. Distribution of
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From nobody Sun Aug 15 19:33:09 2021
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From: "Weiqiang Cheng" <chengweiqiang@chinamobile.com>
To: "'Dhruv Dhody'" <dhruv.ietf@gmail.com>, "'James Guichard'" <james.n.guichard@futurewei.com>
Cc: <spring@ietf.org>, <spring-chairs@ietf.org>
References: <MN2PR13MB42062237391D7BE769359D30D21A9@MN2PR13MB4206.namprd13.prod.outlook.com> <CAB75xn5rfrpg5VOprQyOGVaXjbpu-SjxGoQb-XfyYc1LbTwi-w@mail.gmail.com>
In-Reply-To: <CAB75xn5rfrpg5VOprQyOGVaXjbpu-SjxGoQb-XfyYc1LbTwi-w@mail.gmail.com>
Date: Mon, 16 Aug 2021 10:32:46 +0800
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Subject: Re: [spring] WGLC for https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/
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Hi Dhruv,

Thanks a lot.

Comments are never late.=20

Responses are in-line

=20

B.R.

Weiqiang Cheng

=20

=20

=E5=8F=91=E4=BB=B6=E4=BA=BA: spring [mailto:spring-bounces@ietf.org] =
=E4=BB=A3=E8=A1=A8 Dhruv Dhody
=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2021=E5=B9=B48=E6=9C=8812=E6=97=A5 =
01:56
=E6=94=B6=E4=BB=B6=E4=BA=BA: James Guichard
=E6=8A=84=E9=80=81: spring@ietf.org; spring-chairs@ietf.org
=E4=B8=BB=E9=A2=98: Re: [spring] WGLC for =
https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/

=20

Hi,

I support the WGLC for draft-ietf-spring-mpls-path-segment. Please find =
my =E2=80=9Clate=E2=80=9D comments. Hope they are still useful.


Minor


*	Section 2

*	The below text requires some more explanation

The Path Segment may be used to identify an SR-MPLS Policy, its =
Candidate-Path (CP), or a SID List (SL)



*	The document says Path Segment =E2=80=9Cuniquely identify an SR =
path=E2=80=9D, so how does that apply to SR policy/CP (which can have =
multiple paths) needs to be explicit.

[Weiqiang] The term of =E2=80=9CSR path=E2=80=9D used in this document =
is a general term that can be used to describe a SR policy, a =
Candidate-Path, or a SID List. So how about updating the 2nd paragraph =
with the following text:

=E2=80=9CThe term of SR path used in this document is a general term =
that can be used to describe a SR Policy, a Candidate-Path (CP), or a =
SID List (SL) [I-D.ietf-spring-segment-routing-policy]. Therefore, the =
Path Segment may be used to identify an SR Policy, its CP, or a SL =
terminating on an egress node depending on the use-case.=E2=80=9D

*	Section 2

*	This text

Normally, the intermediate nodes will not see the Path Segment label
and do not know how to process it. A Path Segment presenting to an
intermediate node is an error condition.

*	Path segment is just another label with no special marking, and since =
it is from the egress label space it is possible that the same label is =
used by the transit node for some other purpose. Not sure about =
=E2=80=9Cdo not know how to process it=E2=80=9D, is there a better way =
to frame this?

[Weiqiang] Maybe the simplest way to fix it is just to remove the =
=E2=80=9Cdo not know how to process it=E2=80=9D text, for example as =
below:

=E2=80=9CNormally, the intermediate nodes will not see the Path Segment =
label. A Path Segment presenting to an intermediate node is an error =
condition.=E2=80=9D

*	Section 8

*	This needs to be expanded. The path segment does carry a label in the =
packet that can be used to identify the flows that are using a =
particular path. The path segment in the control plane could also be =
exploited for incorrect correlation between paths.

[Weiqiang]

Sure, we will try to expand it a bit.

And if there is some suggestion text, that will be great.


Nits


*	Add references in the terminology section 1.2
*	Add references for SRLB/SRGB [RFC8402]
*	Section 2

*	s/SR-MPLS Policy/SR Policy/

*	Section 3

*	s/Path Computation Element Protocol (PCEP)/Path Computation Element =
Communication Protocol (PCEP)/

*	Section 5

*	s/[I-D.gandhi-mpls-ioam-sr]/[I-D.gandhi-mpls-ioam]
*	s/[I-D.gandhi-spring-stamp-srpm]/[I-D.ietf-spring-stamp-srpm]

[Weiqiang] Will fix the above nits in the revision.

=20

=20

Thanks!
Dhruv

=20

On Wed, Jul 7, 2021 at 9:19 PM James Guichard =
<james.n.guichard@futurewei.com> wrote:

Dear WG:

=20

This email starts a 2 week Working Group Last Call for =
draft-ietf-spring-mpls-path-segment [1].

=20

Please read this document if you haven=E2=80=99t read the most recent =
version and send your comments to the SPRING WG list no later than July =
21st 2021.=20

=20

If you are raising a point which you expect will be specifically debated =
on the mailing list, consider using a specific email/thread for this =
point.

=20

Lastly, if you are an author or contributor please response to indicate =
whether you know of any undisclosed IPR related to this document.=20

=20

Thanks!

=20

Jim, Joel & Bruno

=20

[1] =
https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/

=20

=20

=20

=20

_______________________________________________
spring mailing list
spring@ietf.org
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</o:shapelayout></xml><![endif]--></head><body lang=3DZH-CN link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Hi Dhruv,<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Thanks a lot.<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Comments are never late. <o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Responses are in-line<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>B.R.<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Weiqiang Cheng<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><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=3DMsoNormal><b><span =
style=3D'font-size:10.0pt'>=E5=8F=91=E4=BB=B6=E4=BA=BA<span =
lang=3DEN-US>:</span></span></b><span lang=3DEN-US =
style=3D'font-size:10.0pt'> spring [mailto:spring-bounces@ietf.org] =
</span><b><span style=3D'font-size:10.0pt'>=E4=BB=A3=E8=A1=A8 =
</span></b><span lang=3DEN-US style=3D'font-size:10.0pt'>Dhruv =
Dhody<br></span><b><span =
style=3D'font-size:10.0pt'>=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4<span =
lang=3DEN-US>:</span></span></b><span lang=3DEN-US =
style=3D'font-size:10.0pt'> 2021</span><span =
style=3D'font-size:10.0pt'>=E5=B9=B4<span =
lang=3DEN-US>8</span>=E6=9C=88<span lang=3DEN-US>12</span>=E6=97=A5<span =
lang=3DEN-US> 01:56<br></span><b>=E6=94=B6=E4=BB=B6=E4=BA=BA<span =
lang=3DEN-US>:</span></b><span lang=3DEN-US> James =
Guichard<br></span><b>=E6=8A=84=E9=80=81<span =
lang=3DEN-US>:</span></b><span lang=3DEN-US> spring@ietf.org; =
spring-chairs@ietf.org<br></span><b>=E4=B8=BB=E9=A2=98<span =
lang=3DEN-US>:</span></b><span lang=3DEN-US> Re: [spring] WGLC for =
https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/<o:p=
></o:p></span></span></p></div><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><div><div><p class=3Dgmail-part =
style=3D'mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;mar=
gin-left:0cm'><span lang=3DEN-US style=3D'font-family:"Trebuchet =
MS","sans-serif";color:#333333;letter-spacing:.25pt'>Hi,</span><span =
lang=3DEN-US =
style=3D'color:#333333;letter-spacing:.25pt'><o:p></o:p></span></p><p =
class=3Dgmail-part =
style=3D'mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;mar=
gin-left:0cm;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";color:#333333;letter-spacing:.25pt'>I support the WGLC =
for draft-ietf-spring-mpls-path-segment. Please find my =
=E2=80=9Clate=E2=80=9D comments. Hope they are still useful.</span><span =
lang=3DEN-US =
style=3D'color:#333333;letter-spacing:.25pt'><o:p></o:p></span></p><h3 =
style=3D'mso-margin-top-alt:18.0pt;margin-right:0cm;margin-bottom:12.0pt;=
margin-left:0cm;box-sizing:border-box' id=3Dgmail-Minor><span =
lang=3DEN-US style=3D'font-size:10.0pt;font-family:"Trebuchet =
MS","sans-serif";color:#333333;letter-spacing:.25pt'>Minor</span><span =
lang=3DEN-US =
style=3D'color:#333333;letter-spacing:.25pt'><o:p></o:p></span></h3><ul =
type=3Ddisc><li class=3DMsoNormal =
style=3D'color:#333333;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto=
;mso-list:l0 level1 lfo1;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>Section 2</span><span =
lang=3DEN-US =
style=3D'letter-spacing:.25pt'><o:p></o:p></span></li></ul><ul =
type=3Ddisc><ul type=3Dcircle><li class=3DMsoNormal =
style=3D'color:#333333;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto=
;mso-list:l0 level2 lfo1;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>The below text requires some more =
explanation</span><span lang=3DEN-US =
style=3D'letter-spacing:.25pt'><o:p></o:p></span></li></ul></ul><blockquo=
te style=3D'border:none;border-left:solid #DDDDDD 3.0pt;padding:0cm 0cm =
0cm =
12.0pt;margin-left:0cm;margin-right:0cm;margin-bottom:12.0pt;box-sizing:b=
order-box'><p =
style=3D'mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:0cm;margin=
-left:36.0pt;margin-bottom:.0001pt;box-sizing:border-box'><span =
lang=3DEN-US style=3D'font-family:"Trebuchet =
MS","sans-serif";color:#777777;letter-spacing:.25pt'>The Path Segment =
may be used to identify an SR-MPLS Policy, its Candidate-Path (CP), or a =
SID List (SL)<o:p></o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt'><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;letter-spacing:.25pt'> <o:p></o:p></span></p></blockquote><ul =
type=3Ddisc><ul type=3Dcircle><li class=3DMsoNormal =
style=3D'color:#333333;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto=
;mso-list:l0 level2 lfo1'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>The document says Path Segment =
=E2=80=9Cuniquely identify an SR path=E2=80=9D, so how does that apply =
to SR policy/CP (which can have multiple paths) needs to be =
explicit.</span><span lang=3DEN-US =
style=3D'letter-spacing:.25pt'><o:p></o:p></span></li></ul></ul><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;letter-spacing:.25pt'> [Weiqiang] </span><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;letter-spacing:.25pt'>The term of =E2=80=9CSR path=E2=80=9D used in =
this document is a general term that can be used to describe a SR =
policy, a Candidate-Path, or a SID List. So how about updating the =
2<sup>nd</sup> paragraph with the following =
text:<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;letter-spacing:.25pt'>=E2=80=9CThe term of SR path used in this =
document is a general term that can be used to describe a SR Policy, a =
Candidate-Path (CP), or a SID List (SL) =
[I-D.ietf-spring-segment-routing-policy]. Therefore, the Path Segment =
may be used to identify an SR Policy, its CP, or a SL terminating on an =
egress node depending on the use-case.=E2=80=9D<o:p></o:p></span></p><ul =
style=3D'margin-top:0cm' type=3Ddisc><li class=3DMsoNormal =
style=3D'color:#333333;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-li=
st:l0 level1 lfo1'><span lang=3DEN-US style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>Section 2</span><span =
lang=3DEN-US =
style=3D'letter-spacing:.25pt'><o:p></o:p></span></li></ul><ul =
type=3Ddisc><ul type=3Dcircle><li class=3DMsoNormal =
style=3D'color:#333333;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto=
;mso-list:l0 level2 lfo1;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>This text</span><span =
lang=3DEN-US =
style=3D'letter-spacing:.25pt'><o:p></o:p></span></li></ul></ul><blockquo=
te style=3D'border:none;border-left:solid #DDDDDD 3.0pt;padding:0cm 0cm =
0cm =
12.0pt;margin-left:0cm;margin-right:0cm;margin-bottom:12.0pt;box-sizing:b=
order-box'><p =
style=3D'mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:0cm;margin=
-left:36.0pt;margin-bottom:.0001pt;box-sizing:border-box'><span =
lang=3DEN-US style=3D'font-family:"Trebuchet =
MS","sans-serif";color:#777777;letter-spacing:.25pt'>Normally, the =
intermediate nodes will not see the Path Segment label<br>and do not =
know how to process it. A Path Segment presenting to an<br>intermediate =
node is an error condition.</span><span lang=3DEN-US =
style=3D'color:#777777;letter-spacing:.25pt'><o:p></o:p></span></p></bloc=
kquote><ul type=3Ddisc><ul type=3Dcircle><li class=3DMsoNormal =
style=3D'color:#333333;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto=
;mso-list:l0 level2 lfo1;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>Path segment is just another =
label with no special marking, and since it is from the egress label =
space it is possible that the same label is used by the transit node for =
some other purpose. Not sure about =E2=80=9Cdo not know how to process =
it=E2=80=9D, is there a better way to frame this?</span><span =
lang=3DEN-US =
style=3D'letter-spacing:.25pt'><o:p></o:p></span></li></ul></ul><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;letter-spacing:.25pt'>[Weiqiang]</span><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;letter-spacing:.25pt'> Maybe the simplest way to fix it is just to =
remove the =E2=80=9Cdo not know how to process it=E2=80=9D text, for =
example as below:<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;letter-spacing:.25pt'>=E2=80=9CNormally, the intermediate nodes will =
not see the Path Segment label. A Path Segment presenting to an =
intermediate node is an error =
condition.=E2=80=9D<o:p></o:p></span></p><ul style=3D'margin-top:0cm' =
type=3Ddisc><li class=3DMsoNormal =
style=3D'color:#333333;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-li=
st:l0 level1 lfo1'><span lang=3DEN-US style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>Section 8</span><span =
lang=3DEN-US =
style=3D'letter-spacing:.25pt'><o:p></o:p></span></li></ul><ul =
type=3Ddisc><ul type=3Dcircle><li class=3DMsoNormal =
style=3D'color:#333333;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto=
;mso-list:l0 level2 lfo1;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>This needs to be expanded. The =
path segment does carry a label in the packet that can be used to =
identify the flows that are using a particular path. The path segment in =
the control plane could also be exploited for incorrect correlation =
between paths.</span><span lang=3DEN-US =
style=3D'letter-spacing:.25pt'><o:p></o:p></span></li></ul></ul><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;letter-spacing:.25pt'>[Weiqiang]<o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;letter-spacing:.25pt'>Sure, we will try to expand it a =
bit.<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;letter-spacing:.25pt'>And if there is some suggestion text, that will =
be great.<o:p></o:p></span></p><h3 =
style=3D'mso-margin-top-alt:18.0pt;margin-right:0cm;margin-bottom:12.0pt;=
margin-left:0cm'><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Trebuchet =
MS","sans-serif";color:#333333;letter-spacing:.25pt'>Nits</span><span =
lang=3DEN-US =
style=3D'color:#333333;letter-spacing:.25pt'><o:p></o:p></span></h3><ul =
type=3Ddisc><li class=3DMsoNormal =
style=3D'color:#333333;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto=
;mso-list:l1 level1 lfo2;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>Add references in the terminology =
section 1.2</span><span lang=3DEN-US =
style=3D'letter-spacing:.25pt'><o:p></o:p></span></li><li =
class=3DMsoNormal =
style=3D'color:#333333;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-li=
st:l1 level1 lfo2;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>Add references for SRLB/SRGB =
[RFC8402]</span><span lang=3DEN-US =
style=3D'letter-spacing:.25pt'><o:p></o:p></span></li><li =
class=3DMsoNormal =
style=3D'color:#333333;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-li=
st:l1 level1 lfo2;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>Section 2</span><span =
lang=3DEN-US =
style=3D'letter-spacing:.25pt'><o:p></o:p></span></li></ul><ul =
type=3Ddisc><ul type=3Dcircle><li class=3DMsoNormal =
style=3D'color:#333333;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto=
;mso-list:l1 level2 lfo2;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>s/SR-MPLS Policy/SR =
Policy/</span><span lang=3DEN-US =
style=3D'letter-spacing:.25pt'><o:p></o:p></span></li></ul></ul><ul =
style=3D'margin-top:0cm' type=3Ddisc><li class=3DMsoNormal =
style=3D'color:#333333;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-li=
st:l1 level1 lfo2;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>Section 3</span><span =
lang=3DEN-US =
style=3D'letter-spacing:.25pt'><o:p></o:p></span></li></ul><ul =
type=3Ddisc><ul type=3Dcircle><li class=3DMsoNormal =
style=3D'color:#333333;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto=
;mso-list:l1 level2 lfo2;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>s/Path Computation Element =
Protocol (PCEP)/Path Computation Element Communication Protocol =
(PCEP)/</span><span lang=3DEN-US =
style=3D'letter-spacing:.25pt'><o:p></o:p></span></li></ul></ul><ul =
style=3D'margin-top:0cm' type=3Ddisc><li class=3DMsoNormal =
style=3D'color:#333333;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-li=
st:l1 level1 lfo2;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>Section 5</span><span =
lang=3DEN-US =
style=3D'letter-spacing:.25pt'><o:p></o:p></span></li></ul><ul =
type=3Ddisc><ul type=3Dcircle><li class=3DMsoNormal =
style=3D'color:#333333;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto=
;mso-list:l1 level2 lfo2;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>s/[I-D.gandhi-mpls-ioam-sr]/[I-D.g=
andhi-mpls-ioam]</span><span lang=3DEN-US =
style=3D'letter-spacing:.25pt'><o:p></o:p></span></li><li =
class=3DMsoNormal =
style=3D'color:#333333;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-li=
st:l1 level2 lfo2;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>s/[I-D.gandhi-spring-stamp-srpm]/[=
I-D.ietf-spring-stamp-srpm]</span><span lang=3DEN-US =
style=3D'letter-spacing:.25pt'><o:p></o:p></span></li></ul></ul><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;box-sizing:bo=
rder-box'><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;letter-spacing:.25pt'>[Weiqiang] Will fix the above nits in the =
revision.<o:p></o:p></span></p><p class=3Dgmail-part =
style=3D'margin:0cm;margin-bottom:.0001pt'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";color:#1F497D;letter-spacing:.25pt'><o:p>&nbsp;</o:p></s=
pan></p><p class=3Dgmail-part =
style=3D'margin:0cm;margin-bottom:.0001pt'><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;letter-spacing:.25pt'><o:p>&nbsp;</o:p></span></p><p =
class=3Dgmail-part style=3D'margin:0cm;margin-bottom:.0001pt'><span =
lang=3DEN-US style=3D'font-family:"Trebuchet =
MS","sans-serif";color:#333333;letter-spacing:.25pt'>Thanks!<br>Dhruv</sp=
an><span lang=3DEN-US =
style=3D'color:#333333;letter-spacing:.25pt'><o:p></o:p></span></p></div>=
</div><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><div><div><p =
class=3DMsoNormal><span lang=3DEN-US>On Wed, Jul 7, 2021 at 9:19 PM =
James Guichard &lt;<a =
href=3D"mailto:james.n.guichard@futurewei.com">james.n.guichard@futurewei=
.com</a>&gt; wrote:<o:p></o:p></span></p></div><blockquote =
style=3D'border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm =
6.0pt;margin-left:4.8pt;margin-right:0cm'><div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>Dear WG:<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>This email starts a 2 week Working Group Last Call for =
draft-ietf-spring-mpls-path-segment [1].<o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>Please read this document if you haven=E2=80=99t read the =
most recent version and send your comments to the SPRING WG list no =
later than July 21<sup>st</sup> 2021. <o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US style=3D'color:#212529'>If you are raising a point which =
you expect will be specifically debated on the mailing list, consider =
using a specific email/thread for this point.</span><span =
lang=3DEN-US><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US style=3D'color:#212529'>&nbsp;</span><span =
lang=3DEN-US><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US style=3D'color:#212529'>Lastly, if you are an author or =
contributor please response to indicate whether you know of any =
undisclosed IPR related to this document. </span><span =
lang=3DEN-US><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>Thanks!<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>Jim, Joel &amp; Bruno<o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:wh=
ite'><span lang=3DEN-US style=3D'color:black'>[1] <a =
href=3D"https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segm=
ent/" =
target=3D"_blank">https://datatracker.ietf.org/doc/draft-ietf-spring-mpls=
-path-segment/</a></span><span lang=3DEN-US><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:wh=
ite'><span lang=3DEN-US>&nbsp;<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><span =
lang=3DEN-US>_______________________________________________<br>spring =
mailing list<br><a href=3D"mailto:spring@ietf.org" =
target=3D"_blank">spring@ietf.org</a><br><a =
href=3D"https://www.ietf.org/mailman/listinfo/spring" =
target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><o:p></=
o:p></span></p></blockquote></div></div></body></html>
------=_NextPart_000_053C_01D7928A.0E1924F0--




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In-Reply-To: <053b01d79246$fff5e4f0$ffe1aed0$@com>
From: Dhruv Dhody <dhruv.ietf@gmail.com>
Date: Mon, 16 Aug 2021 11:02:07 +0530
Message-ID: <CAB75xn7_M37AJFueO_Lx1kfUNZ7et6r8uy=xnirxy8Ho_=EoDw@mail.gmail.com>
To: Weiqiang Cheng <chengweiqiang@chinamobile.com>
Cc: James Guichard <james.n.guichard@futurewei.com>, spring@ietf.org, spring-chairs@ietf.org
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Subject: Re: [spring] WGLC for https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/
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Thanks Weiqiang for handling my comments!

Here is the first attempt for enhancing the security consideration section
(for you to consider) -
OLD:

   This document does not introduce additional security requirements and
   mechanisms other than the ones described in [RFC8402].

NEW:

   Path Segment in SR-MPLS does not introduce any new behavior or any
   change in the way the MPLS data plane works. Section 8.1 of [RFC8402]
   describe the security consideration for SR-MPLS.

   Path segment is additional metadata that is added to the packet
   consisting of the SR path. An attacker could exploit path segment to
   manipulate the accounting of SR traffic at the egress. Path segment
   could also be used to monitor traffic patterns for the E2E paths.
   The control protocols used to allocate path segments could also be
   exploited to disseminate incorrect path segment information. Note
   that, the path segment is imposed at the ingress and removed at the
   egress boundary and is not leaked out of the administered domain.

END

Thanks!
Dhruv

On Mon, Aug 16, 2021 at 8:03 AM Weiqiang Cheng <
chengweiqiang@chinamobile.com> wrote:

> Hi Dhruv,
>
> Thanks a lot.
>
> Comments are never late.
>
> Responses are in-line
>
>
>
> B.R.
>
> Weiqiang Cheng
>
>
>
>
>
> *=E5=8F=91=E4=BB=B6=E4=BA=BA:* spring [mailto:spring-bounces@ietf.org] *=
=E4=BB=A3=E8=A1=A8 *Dhruv Dhody
> *=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4:* 2021=E5=B9=B48=E6=9C=8812=E6=97=
=A5 01:56
> *=E6=94=B6=E4=BB=B6=E4=BA=BA:* James Guichard
> *=E6=8A=84=E9=80=81:* spring@ietf.org; spring-chairs@ietf.org
> *=E4=B8=BB=E9=A2=98:* Re: [spring] WGLC for
> https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/
>
>
>
> Hi,
>
> I support the WGLC for draft-ietf-spring-mpls-path-segment. Please find m=
y
> =E2=80=9Clate=E2=80=9D comments. Hope they are still useful.
> Minor
>
>    - Section 2
>
>
>    - The below text requires some more explanation
>
> The Path Segment may be used to identify an SR-MPLS Policy, its
> Candidate-Path (CP), or a SID List (SL)
>
>
>    - The document says Path Segment =E2=80=9Cuniquely identify an SR path=
=E2=80=9D, so
>       how does that apply to SR policy/CP (which can have multiple paths)=
 needs
>       to be explicit.
>
> [Weiqiang] The term of =E2=80=9CSR path=E2=80=9D used in this document is=
 a general term
> that can be used to describe a SR policy, a Candidate-Path, or a SID List=
.
> So how about updating the 2nd paragraph with the following text:
>
> =E2=80=9CThe term of SR path used in this document is a general term that=
 can be
> used to describe a SR Policy, a Candidate-Path (CP), or a SID List (SL)
> [I-D.ietf-spring-segment-routing-policy]. Therefore, the Path Segment may
> be used to identify an SR Policy, its CP, or a SL terminating on an egres=
s
> node depending on the use-case.=E2=80=9D
>
>    - Section 2
>
>
>    - This text
>
> Normally, the intermediate nodes will not see the Path Segment label
> and do not know how to process it. A Path Segment presenting to an
> intermediate node is an error condition.
>
>
>    - Path segment is just another label with no special marking, and
>       since it is from the egress label space it is possible that the sam=
e label
>       is used by the transit node for some other purpose. Not sure about =
=E2=80=9Cdo not
>       know how to process it=E2=80=9D, is there a better way to frame thi=
s?
>
> [Weiqiang] Maybe the simplest way to fix it is just to remove the =E2=80=
=9Cdo not
> know how to process it=E2=80=9D text, for example as below:
>
> =E2=80=9CNormally, the intermediate nodes will not see the Path Segment l=
abel. A
> Path Segment presenting to an intermediate node is an error condition.=E2=
=80=9D
>
>    - Section 8
>
>
>    - This needs to be expanded. The path segment does carry a label in
>       the packet that can be used to identify the flows that are using a
>       particular path. The path segment in the control plane could also b=
e
>       exploited for incorrect correlation between paths.
>
> [Weiqiang]
>
> Sure, we will try to expand it a bit.
>
> And if there is some suggestion text, that will be great.
> Nits
>
>    - Add references in the terminology section 1.2
>    - Add references for SRLB/SRGB [RFC8402]
>    - Section 2
>
>
>    - s/SR-MPLS Policy/SR Policy/
>
>
>    - Section 3
>
>
>    - s/Path Computation Element Protocol (PCEP)/Path Computation Element
>       Communication Protocol (PCEP)/
>
>
>    - Section 5
>
>
>    - s/[I-D.gandhi-mpls-ioam-sr]/[I-D.gandhi-mpls-ioam]
>       - s/[I-D.gandhi-spring-stamp-srpm]/[I-D.ietf-spring-stamp-srpm]
>
> [Weiqiang] Will fix the above nits in the revision.
>
>
>
>
>
> Thanks!
> Dhruv
>
>
>
> On Wed, Jul 7, 2021 at 9:19 PM James Guichard <
> james.n.guichard@futurewei.com> wrote:
>
> Dear WG:
>
>
>
> This email starts a 2 week Working Group Last Call for
> draft-ietf-spring-mpls-path-segment [1].
>
>
>
> Please read this document if you haven=E2=80=99t read the most recent ver=
sion and
> send your comments to the SPRING WG list no later than July 21st 2021.
>
>
>
> If you are raising a point which you expect will be specifically debated
> on the mailing list, consider using a specific email/thread for this poin=
t.
>
>
>
> Lastly, if you are an author or contributor please response to indicate
> whether you know of any undisclosed IPR related to this document.
>
>
>
> Thanks!
>
>
>
> Jim, Joel & Bruno
>
>
>
> [1] https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/
>
>
>
>
>
>
>
>
>
> _______________________________________________
> 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"><div class=3D"gmail_default" style=3D"font-family:trebuche=
t ms,sans-serif;font-size:small;color:#073763"><span style=3D"color:rgb(31,=
73,125);font-family:Calibri,sans-serif;font-size:14px;letter-spacing:0.3333=
33px">Thanks Weiqiang for handling my comments!=C2=A0</span><br></div><div =
class=3D"gmail_default" style=3D"font-family:trebuchet ms,sans-serif;font-s=
ize:small;color:#073763"><span style=3D"color:rgb(31,73,125);font-family:Ca=
libri,sans-serif;font-size:14px;letter-spacing:0.333333px"><br></span></div=
><div class=3D"gmail_default" style=3D"font-family:trebuchet ms,sans-serif;=
font-size:small;color:#073763"><span style=3D"color:rgb(31,73,125);font-fam=
ily:Calibri,sans-serif;font-size:14px;letter-spacing:0.333333px">Here is th=
e first attempt for enhancing the security consideration section (for you t=
o consider) -=C2=A0</span></div><div class=3D"gmail_default" style=3D"font-=
family:trebuchet ms,sans-serif;font-size:small;color:#073763"></div><div cl=
ass=3D"gmail_default" style=3D"font-size:small;color:rgb(7,55,99)"><font fa=
ce=3D"monospace">OLD:<br><br>=C2=A0 =C2=A0This document does not introduce =
additional security requirements and<br>=C2=A0 =C2=A0mechanisms other than =
the ones described in [RFC8402].<br><br>NEW: <br><br>=C2=A0 =C2=A0Path Segm=
ent in SR-MPLS does not introduce any new behavior or any <br>=C2=A0 =C2=A0=
change in the way the MPLS data plane works. Section 8.1 of [RFC8402]<br>=
=C2=A0 =C2=A0describe the security consideration for SR-MPLS. <br><br>=C2=
=A0 =C2=A0Path segment is additional metadata that is added to the packet <=
br>=C2=A0 =C2=A0consisting of the SR path. An attacker could exploit path s=
egment to <br>=C2=A0 =C2=A0manipulate the accounting of SR traffic at the e=
gress. Path segment <br>=C2=A0 =C2=A0could also be used to monitor traffic =
patterns for the E2E paths. <br>=C2=A0 =C2=A0The control protocols used to =
allocate path segments could also be <br>=C2=A0 =C2=A0exploited to dissemin=
ate incorrect path segment information. Note <br>=C2=A0 =C2=A0that, the pat=
h segment is imposed at the ingress and removed at the <br>=C2=A0 =C2=A0egr=
ess boundary and is not leaked out of the administered domain.<br><br>END</=
font><br></div><div class=3D"gmail_default" style=3D"font-family:trebuchet =
ms,sans-serif;font-size:small;color:#073763"><br></div><div class=3D"gmail_=
default" style=3D"font-family:trebuchet ms,sans-serif;font-size:small;color=
:#073763">Thanks!=C2=A0</div><div class=3D"gmail_default" style=3D"font-fam=
ily:trebuchet ms,sans-serif;font-size:small;color:#073763">Dhruv</div></div=
><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Mo=
n, Aug 16, 2021 at 8:03 AM Weiqiang Cheng &lt;<a href=3D"mailto:chengweiqia=
ng@chinamobile.com">chengweiqiang@chinamobile.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"ZH-CN"><div><=
p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-f=
amily:Calibri,sans-serif;color:rgb(31,73,125)">Hi Dhruv,<u></u><u></u></spa=
n></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt=
;font-family:Calibri,sans-serif;color:rgb(31,73,125)">Thanks a lot.<u></u><=
u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-=
size:10.5pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)">Comments a=
re never late. <u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=
=3D"EN-US" style=3D"font-size:10.5pt;font-family:Calibri,sans-serif;color:r=
gb(31,73,125)">Responses are in-line<u></u><u></u></span></p><p class=3D"Ms=
oNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:Calibri=
,sans-serif;color:rgb(31,73,125)"><u></u>=C2=A0<u></u></span></p><p class=
=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:C=
alibri,sans-serif;color:rgb(31,73,125)">B.R.<u></u><u></u></span></p><p cla=
ss=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family=
:Calibri,sans-serif;color:rgb(31,73,125)">Weiqiang Cheng<u></u><u></u></spa=
n></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt=
;font-family:Calibri,sans-serif;color:rgb(31,73,125)"><u></u>=C2=A0<u></u><=
/span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10=
.5pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"><u></u>=C2=A0<u><=
/u></span></p><div style=3D"border-right:none;border-bottom:none;border-lef=
t:none;border-top:1pt solid rgb(181,196,223);padding:3pt 0cm 0cm"><p class=
=3D"MsoNormal"><b><span style=3D"font-size:10pt">=E5=8F=91=E4=BB=B6=E4=BA=
=BA<span lang=3D"EN-US">:</span></span></b><span lang=3D"EN-US" style=3D"fo=
nt-size:10pt"> spring [mailto:<a href=3D"mailto:spring-bounces@ietf.org" ta=
rget=3D"_blank">spring-bounces@ietf.org</a>] </span><b><span style=3D"font-=
size:10pt">=E4=BB=A3=E8=A1=A8 </span></b><span lang=3D"EN-US" style=3D"font=
-size:10pt">Dhruv Dhody<br></span><b><span style=3D"font-size:10pt">=E5=8F=
=91=E9=80=81=E6=97=B6=E9=97=B4<span lang=3D"EN-US">:</span></span></b><span=
 lang=3D"EN-US" style=3D"font-size:10pt"> 2021</span><span style=3D"font-si=
ze:10pt">=E5=B9=B4<span lang=3D"EN-US">8</span>=E6=9C=88<span lang=3D"EN-US=
">12</span>=E6=97=A5<span lang=3D"EN-US"> 01:56<br></span><b>=E6=94=B6=E4=
=BB=B6=E4=BA=BA<span lang=3D"EN-US">:</span></b><span lang=3D"EN-US"> James=
 Guichard<br></span><b>=E6=8A=84=E9=80=81<span lang=3D"EN-US">:</span></b><=
span lang=3D"EN-US"> <a href=3D"mailto:spring@ietf.org" target=3D"_blank">s=
pring@ietf.org</a>; <a href=3D"mailto:spring-chairs@ietf.org" target=3D"_bl=
ank">spring-chairs@ietf.org</a><br></span><b>=E4=B8=BB=E9=A2=98<span lang=
=3D"EN-US">:</span></b><span lang=3D"EN-US"> Re: [spring] WGLC for <a href=
=3D"https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/" =
target=3D"_blank">https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-p=
ath-segment/</a><u></u><u></u></span></span></p></div><p class=3D"MsoNormal=
"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p><div><div><p style=3D=
"margin-right:0cm;margin-bottom:12pt;margin-left:0cm"><span lang=3D"EN-US" =
style=3D"font-family:&quot;Trebuchet MS&quot;,sans-serif;color:rgb(51,51,51=
);letter-spacing:0.25pt">Hi,</span><span lang=3D"EN-US" style=3D"color:rgb(=
51,51,51);letter-spacing:0.25pt"><u></u><u></u></span></p><p style=3D"margi=
n-right:0cm;margin-bottom:12pt;margin-left:0cm;box-sizing:border-box"><span=
 lang=3D"EN-US" style=3D"font-family:&quot;Trebuchet MS&quot;,sans-serif;co=
lor:rgb(51,51,51);letter-spacing:0.25pt">I support the WGLC for draft-ietf-=
spring-mpls-path-segment. Please find my =E2=80=9Clate=E2=80=9D comments. H=
ope they are still useful.</span><span lang=3D"EN-US" style=3D"color:rgb(51=
,51,51);letter-spacing:0.25pt"><u></u><u></u></span></p><h3 style=3D"margin=
-right:0cm;margin-bottom:12pt;margin-left:0cm;box-sizing:border-box" id=3D"=
gmail-m_2281587380457287178gmail-Minor"><span lang=3D"EN-US" style=3D"font-=
size:10pt;font-family:&quot;Trebuchet MS&quot;,sans-serif;color:rgb(51,51,5=
1);letter-spacing:0.25pt">Minor</span><span lang=3D"EN-US" style=3D"color:r=
gb(51,51,51);letter-spacing:0.25pt"><u></u><u></u></span></h3><ul type=3D"d=
isc"><li class=3D"MsoNormal" style=3D"color:rgb(51,51,51);box-sizing:border=
-box"><span lang=3D"EN-US" style=3D"font-family:&quot;Trebuchet MS&quot;,sa=
ns-serif;letter-spacing:0.25pt">Section 2</span><span lang=3D"EN-US" style=
=3D"letter-spacing:0.25pt"><u></u><u></u></span></li></ul><ul type=3D"disc"=
><ul type=3D"circle"><li class=3D"MsoNormal" style=3D"color:rgb(51,51,51);b=
ox-sizing:border-box"><span lang=3D"EN-US" style=3D"font-family:&quot;Trebu=
chet MS&quot;,sans-serif;letter-spacing:0.25pt">The below text requires som=
e more explanation</span><span lang=3D"EN-US" style=3D"letter-spacing:0.25p=
t"><u></u><u></u></span></li></ul></ul><blockquote style=3D"border-top:none=
;border-right:none;border-bottom:none;border-left:3pt solid rgb(221,221,221=
);padding:0cm 0cm 0cm 12pt;margin-left:0cm;margin-right:0cm;margin-bottom:1=
2pt;box-sizing:border-box"><p style=3D"margin-right:0cm;margin-left:36pt;ma=
rgin-bottom:0.0001pt;box-sizing:border-box"><span lang=3D"EN-US" style=3D"f=
ont-family:&quot;Trebuchet MS&quot;,sans-serif;color:rgb(119,119,119);lette=
r-spacing:0.25pt">The Path Segment may be used to identify an SR-MPLS Polic=
y, its Candidate-Path (CP), or a SID List (SL)<u></u><u></u></span></p><p s=
tyle=3D"margin:0cm 0cm 0.0001pt"><span lang=3D"EN-US" style=3D"font-size:10=
.5pt;font-family:Calibri,sans-serif;color:rgb(31,73,125);letter-spacing:0.2=
5pt"> <u></u><u></u></span></p></blockquote><ul type=3D"disc"><ul type=3D"c=
ircle"><li class=3D"MsoNormal" style=3D"color:rgb(51,51,51)"><span lang=3D"=
EN-US" style=3D"font-family:&quot;Trebuchet MS&quot;,sans-serif;letter-spac=
ing:0.25pt">The document says Path Segment =E2=80=9Cuniquely identify an SR=
 path=E2=80=9D, so how does that apply to SR policy/CP (which can have mult=
iple paths) needs to be explicit.</span><span lang=3D"EN-US" style=3D"lette=
r-spacing:0.25pt"><u></u><u></u></span></li></ul></ul><p class=3D"MsoNormal=
"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:Calibri,sans-s=
erif;color:rgb(31,73,125);letter-spacing:0.25pt"> [Weiqiang] </span><span l=
ang=3D"EN-US" style=3D"font-size:10.5pt;font-family:Calibri,sans-serif;colo=
r:rgb(31,73,125);letter-spacing:0.25pt">The term of =E2=80=9CSR path=E2=80=
=9D used in this document is a general term that can be used to describe a =
SR policy, a Candidate-Path, or a SID List. So how about updating the 2<sup=
>nd</sup> paragraph with the following text:<u></u><u></u></span></p><p cla=
ss=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family=
:Calibri,sans-serif;color:rgb(31,73,125);letter-spacing:0.25pt">=E2=80=9CTh=
e term of SR path used in this document is a general term that can be used =
to describe a SR Policy, a Candidate-Path (CP), or a SID List (SL) [I-D.iet=
f-spring-segment-routing-policy]. Therefore, the Path Segment may be used t=
o identify an SR Policy, its CP, or a SL terminating on an egress node depe=
nding on the use-case.=E2=80=9D<u></u><u></u></span></p><ul style=3D"margin=
-top:0cm" type=3D"disc"><li class=3D"MsoNormal" style=3D"color:rgb(51,51,51=
);margin-top:3pt"><span lang=3D"EN-US" style=3D"font-family:&quot;Trebuchet=
 MS&quot;,sans-serif;letter-spacing:0.25pt">Section 2</span><span lang=3D"E=
N-US" style=3D"letter-spacing:0.25pt"><u></u><u></u></span></li></ul><ul ty=
pe=3D"disc"><ul type=3D"circle"><li class=3D"MsoNormal" style=3D"color:rgb(=
51,51,51);box-sizing:border-box"><span lang=3D"EN-US" style=3D"font-family:=
&quot;Trebuchet MS&quot;,sans-serif;letter-spacing:0.25pt">This text</span>=
<span lang=3D"EN-US" style=3D"letter-spacing:0.25pt"><u></u><u></u></span><=
/li></ul></ul><blockquote style=3D"border-top:none;border-right:none;border=
-bottom:none;border-left:3pt solid rgb(221,221,221);padding:0cm 0cm 0cm 12p=
t;margin-left:0cm;margin-right:0cm;margin-bottom:12pt;box-sizing:border-box=
"><p style=3D"margin-right:0cm;margin-left:36pt;margin-bottom:0.0001pt;box-=
sizing:border-box"><span lang=3D"EN-US" style=3D"font-family:&quot;Trebuche=
t MS&quot;,sans-serif;color:rgb(119,119,119);letter-spacing:0.25pt">Normall=
y, the intermediate nodes will not see the Path Segment label<br>and do not=
 know how to process it. A Path Segment presenting to an<br>intermediate no=
de is an error condition.</span><span lang=3D"EN-US" style=3D"color:rgb(119=
,119,119);letter-spacing:0.25pt"><u></u><u></u></span></p></blockquote><ul =
type=3D"disc"><ul type=3D"circle"><li class=3D"MsoNormal" style=3D"color:rg=
b(51,51,51);box-sizing:border-box"><span lang=3D"EN-US" style=3D"font-famil=
y:&quot;Trebuchet MS&quot;,sans-serif;letter-spacing:0.25pt">Path segment i=
s just another label with no special marking, and since it is from the egre=
ss label space it is possible that the same label is used by the transit no=
de for some other purpose. Not sure about =E2=80=9Cdo not know how to proce=
ss it=E2=80=9D, is there a better way to frame this?</span><span lang=3D"EN=
-US" style=3D"letter-spacing:0.25pt"><u></u><u></u></span></li></ul></ul><p=
 class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-fa=
mily:Calibri,sans-serif;color:rgb(31,73,125);letter-spacing:0.25pt">[Weiqia=
ng]</span><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:Calibr=
i,sans-serif;color:rgb(31,73,125);letter-spacing:0.25pt"> Maybe the simples=
t way to fix it is just to remove the =E2=80=9Cdo not know how to process i=
t=E2=80=9D text, for example as below:<u></u><u></u></span></p><p class=3D"=
MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:Calib=
ri,sans-serif;color:rgb(31,73,125);letter-spacing:0.25pt">=E2=80=9CNormally=
, the intermediate nodes will not see the Path Segment label. A Path Segmen=
t presenting to an intermediate node is an error condition.=E2=80=9D<u></u>=
<u></u></span></p><ul style=3D"margin-top:0cm" type=3D"disc"><li class=3D"M=
soNormal" style=3D"color:rgb(51,51,51);margin-top:3pt"><span lang=3D"EN-US"=
 style=3D"font-family:&quot;Trebuchet MS&quot;,sans-serif;letter-spacing:0.=
25pt">Section 8</span><span lang=3D"EN-US" style=3D"letter-spacing:0.25pt">=
<u></u><u></u></span></li></ul><ul type=3D"disc"><ul type=3D"circle"><li cl=
ass=3D"MsoNormal" style=3D"color:rgb(51,51,51);box-sizing:border-box"><span=
 lang=3D"EN-US" style=3D"font-family:&quot;Trebuchet MS&quot;,sans-serif;le=
tter-spacing:0.25pt">This needs to be expanded. The path segment does carry=
 a label in the packet that can be used to identify the flows that are usin=
g a particular path. The path segment in the control plane could also be ex=
ploited for incorrect correlation between paths.</span><span lang=3D"EN-US"=
 style=3D"letter-spacing:0.25pt"><u></u><u></u></span></li></ul></ul><p cla=
ss=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family=
:Calibri,sans-serif;color:rgb(31,73,125);letter-spacing:0.25pt">[Weiqiang]<=
u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=
=3D"font-size:10.5pt;font-family:Calibri,sans-serif;color:rgb(31,73,125);le=
tter-spacing:0.25pt">Sure, we will try to expand it a bit.<u></u><u></u></s=
pan></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5=
pt;font-family:Calibri,sans-serif;color:rgb(31,73,125);letter-spacing:0.25p=
t">And if there is some suggestion text, that will be great.<u></u><u></u><=
/span></p><h3 style=3D"margin-right:0cm;margin-bottom:12pt;margin-left:0cm"=
><span lang=3D"EN-US" style=3D"font-size:10pt;font-family:&quot;Trebuchet M=
S&quot;,sans-serif;color:rgb(51,51,51);letter-spacing:0.25pt">Nits</span><s=
pan lang=3D"EN-US" style=3D"color:rgb(51,51,51);letter-spacing:0.25pt"><u><=
/u><u></u></span></h3><ul type=3D"disc"><li class=3D"MsoNormal" style=3D"co=
lor:rgb(51,51,51);box-sizing:border-box"><span lang=3D"EN-US" style=3D"font=
-family:&quot;Trebuchet MS&quot;,sans-serif;letter-spacing:0.25pt">Add refe=
rences in the terminology section 1.2</span><span lang=3D"EN-US" style=3D"l=
etter-spacing:0.25pt"><u></u><u></u></span></li><li class=3D"MsoNormal" sty=
le=3D"color:rgb(51,51,51);margin-top:3pt;box-sizing:border-box"><span lang=
=3D"EN-US" style=3D"font-family:&quot;Trebuchet MS&quot;,sans-serif;letter-=
spacing:0.25pt">Add references for SRLB/SRGB [RFC8402]</span><span lang=3D"=
EN-US" style=3D"letter-spacing:0.25pt"><u></u><u></u></span></li><li class=
=3D"MsoNormal" style=3D"color:rgb(51,51,51);margin-top:3pt;box-sizing:borde=
r-box"><span lang=3D"EN-US" style=3D"font-family:&quot;Trebuchet MS&quot;,s=
ans-serif;letter-spacing:0.25pt">Section 2</span><span lang=3D"EN-US" style=
=3D"letter-spacing:0.25pt"><u></u><u></u></span></li></ul><ul type=3D"disc"=
><ul type=3D"circle"><li class=3D"MsoNormal" style=3D"color:rgb(51,51,51);b=
ox-sizing:border-box"><span lang=3D"EN-US" style=3D"font-family:&quot;Trebu=
chet MS&quot;,sans-serif;letter-spacing:0.25pt">s/SR-MPLS Policy/SR Policy/=
</span><span lang=3D"EN-US" style=3D"letter-spacing:0.25pt"><u></u><u></u><=
/span></li></ul></ul><ul style=3D"margin-top:0cm" type=3D"disc"><li class=
=3D"MsoNormal" style=3D"color:rgb(51,51,51);margin-top:3pt;box-sizing:borde=
r-box"><span lang=3D"EN-US" style=3D"font-family:&quot;Trebuchet MS&quot;,s=
ans-serif;letter-spacing:0.25pt">Section 3</span><span lang=3D"EN-US" style=
=3D"letter-spacing:0.25pt"><u></u><u></u></span></li></ul><ul type=3D"disc"=
><ul type=3D"circle"><li class=3D"MsoNormal" style=3D"color:rgb(51,51,51);b=
ox-sizing:border-box"><span lang=3D"EN-US" style=3D"font-family:&quot;Trebu=
chet MS&quot;,sans-serif;letter-spacing:0.25pt">s/Path Computation Element =
Protocol (PCEP)/Path Computation Element Communication Protocol (PCEP)/</sp=
an><span lang=3D"EN-US" style=3D"letter-spacing:0.25pt"><u></u><u></u></spa=
n></li></ul></ul><ul style=3D"margin-top:0cm" type=3D"disc"><li class=3D"Ms=
oNormal" style=3D"color:rgb(51,51,51);margin-top:3pt;box-sizing:border-box"=
><span lang=3D"EN-US" style=3D"font-family:&quot;Trebuchet MS&quot;,sans-se=
rif;letter-spacing:0.25pt">Section 5</span><span lang=3D"EN-US" style=3D"le=
tter-spacing:0.25pt"><u></u><u></u></span></li></ul><ul type=3D"disc"><ul t=
ype=3D"circle"><li class=3D"MsoNormal" style=3D"color:rgb(51,51,51);box-siz=
ing:border-box"><span lang=3D"EN-US" style=3D"font-family:&quot;Trebuchet M=
S&quot;,sans-serif;letter-spacing:0.25pt">s/[I-D.gandhi-mpls-ioam-sr]/[I-D.=
gandhi-mpls-ioam]</span><span lang=3D"EN-US" style=3D"letter-spacing:0.25pt=
"><u></u><u></u></span></li><li class=3D"MsoNormal" style=3D"color:rgb(51,5=
1,51);margin-top:3pt;box-sizing:border-box"><span lang=3D"EN-US" style=3D"f=
ont-family:&quot;Trebuchet MS&quot;,sans-serif;letter-spacing:0.25pt">s/[I-=
D.gandhi-spring-stamp-srpm]/[I-D.ietf-spring-stamp-srpm]</span><span lang=
=3D"EN-US" style=3D"letter-spacing:0.25pt"><u></u><u></u></span></li></ul><=
/ul><p class=3D"MsoNormal" style=3D"box-sizing:border-box"><span lang=3D"EN=
-US" style=3D"font-size:10.5pt;font-family:Calibri,sans-serif;color:rgb(31,=
73,125);letter-spacing:0.25pt">[Weiqiang] Will fix the above nits in the re=
vision.<u></u><u></u></span></p><p style=3D"margin:0cm 0cm 0.0001pt"><span =
lang=3D"EN-US" style=3D"font-family:&quot;Trebuchet MS&quot;,sans-serif;col=
or:rgb(31,73,125);letter-spacing:0.25pt"><u></u>=C2=A0<u></u></span></p><p =
style=3D"margin:0cm 0cm 0.0001pt"><span lang=3D"EN-US" style=3D"font-size:1=
0.5pt;font-family:Calibri,sans-serif;color:rgb(31,73,125);letter-spacing:0.=
25pt"><u></u>=C2=A0<u></u></span></p><p style=3D"margin:0cm 0cm 0.0001pt"><=
span lang=3D"EN-US" style=3D"font-family:&quot;Trebuchet MS&quot;,sans-seri=
f;color:rgb(51,51,51);letter-spacing:0.25pt">Thanks!<br>Dhruv</span><span l=
ang=3D"EN-US" style=3D"color:rgb(51,51,51);letter-spacing:0.25pt"><u></u><u=
></u></span></p></div></div><p class=3D"MsoNormal"><span lang=3D"EN-US"><u>=
</u>=C2=A0<u></u></span></p><div><div><p class=3D"MsoNormal"><span lang=3D"=
EN-US">On Wed, Jul 7, 2021 at 9:19 PM James Guichard &lt;<a href=3D"mailto:=
james.n.guichard@futurewei.com" target=3D"_blank">james.n.guichard@futurewe=
i.com</a>&gt; wrote:<u></u><u></u></span></p></div><blockquote style=3D"bor=
der-top:none;border-right:none;border-bottom:none;border-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 lang=3D"EN-US">Dear WG:<u></u><u></u>=
</span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0<u></u><u></u>=
</span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">This email starts a =
2 week Working Group Last Call for draft-ietf-spring-mpls-path-segment [1].=
<u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=
<u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">Please=
 read this document if you haven=E2=80=99t read the most recent version and=
 send your comments to the SPRING WG list no later than July 21<sup>st</sup=
> 2021. <u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US=
">=C2=A0<u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US=
" style=3D"color:rgb(33,37,41)">If you are raising a point which you expect=
 will be specifically debated on the mailing list, consider using a specifi=
c email/thread for this point.</span><span lang=3D"EN-US"><u></u><u></u></s=
pan></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(33,3=
7,41)">=C2=A0</span><span lang=3D"EN-US"><u></u><u></u></span></p><p class=
=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(33,37,41)">Lastly, i=
f you are an author or contributor please response to indicate whether you =
know of any undisclosed IPR related to this document. </span><span lang=3D"=
EN-US"><u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US"=
>=C2=A0<u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US"=
>Thanks!<u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US=
">=C2=A0<u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US=
">Jim, Joel &amp; Bruno<u></u><u></u></span></p><p class=3D"MsoNormal"><spa=
n lang=3D"EN-US">=C2=A0<u></u><u></u></span></p><p class=3D"MsoNormal" styl=
e=3D"background:white"><span lang=3D"EN-US" style=3D"color:black">[1] <a hr=
ef=3D"https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/=
" target=3D"_blank">https://datatracker.ietf.org/doc/draft-ietf-spring-mpls=
-path-segment/</a></span><span lang=3D"EN-US"><u></u><u></u></span></p><p c=
lass=3D"MsoNormal" style=3D"background:white"><span lang=3D"EN-US">=C2=A0<u=
></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0<u=
></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0<u=
></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0<u=
></u><u></u></span></p></div></div><p class=3D"MsoNormal"><span lang=3D"EN-=
US">_______________________________________________<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"_bla=
nk">https://www.ietf.org/mailman/listinfo/spring</a><u></u><u></u></span></=
p></blockquote></div></div></div>__________________________________________=
_____<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer"=
 target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><br>
</blockquote></div>

--000000000000de507205c9a6879d--


From nobody Mon Aug 16 01:36:20 2021
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From: "Weiqiang Cheng" <chengweiqiang@chinamobile.com>
To: "'Dhruv Dhody'" <dhruv.ietf@gmail.com>
Cc: "'James Guichard'" <james.n.guichard@futurewei.com>, <spring@ietf.org>, <spring-chairs@ietf.org>
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Subject: Re: [spring] WGLC for https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/
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Hi Dhruv,

Thanks for your comments.

Looks good and we will update the text with your proposal.

=20

B.R.

Weiqiang Cheng

=20

=E5=8F=91=E4=BB=B6=E4=BA=BA: spring [mailto:spring-bounces@ietf.org] =
=E4=BB=A3=E8=A1=A8 Dhruv Dhody
=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2021=E5=B9=B48=E6=9C=8816=E6=97=A5 =
13:32
=E6=94=B6=E4=BB=B6=E4=BA=BA: Weiqiang Cheng
=E6=8A=84=E9=80=81: James Guichard; spring@ietf.org; =
spring-chairs@ietf.org
=E4=B8=BB=E9=A2=98: Re: [spring] WGLC for =
https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/

=20

Thanks Weiqiang for handling my comments!=20

=20

Here is the first attempt for enhancing the security consideration =
section (for you to consider) -=20

OLD:

   This document does not introduce additional security requirements and
   mechanisms other than the ones described in [RFC8402].

NEW:=20

   Path Segment in SR-MPLS does not introduce any new behavior or any=20
   change in the way the MPLS data plane works. Section 8.1 of [RFC8402]
   describe the security consideration for SR-MPLS.=20

   Path segment is additional metadata that is added to the packet=20
   consisting of the SR path. An attacker could exploit path segment to=20
   manipulate the accounting of SR traffic at the egress. Path segment=20
   could also be used to monitor traffic patterns for the E2E paths.=20
   The control protocols used to allocate path segments could also be=20
   exploited to disseminate incorrect path segment information. Note=20
   that, the path segment is imposed at the ingress and removed at the=20
   egress boundary and is not leaked out of the administered domain.

END

=20

Thanks!=20

Dhruv

=20

On Mon, Aug 16, 2021 at 8:03 AM Weiqiang Cheng =
<chengweiqiang@chinamobile.com> wrote:

Hi Dhruv,

Thanks a lot.

Comments are never late.=20

Responses are in-line

=20

B.R.

Weiqiang Cheng

=20

=20

=E5=8F=91=E4=BB=B6=E4=BA=BA: spring [mailto:spring-bounces@ietf.org] =
=E4=BB=A3=E8=A1=A8 Dhruv Dhody
=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2021=E5=B9=B48=E6=9C=8812=E6=97=A5 =
01:56
=E6=94=B6=E4=BB=B6=E4=BA=BA: James Guichard
=E6=8A=84=E9=80=81: spring@ietf.org; spring-chairs@ietf.org
=E4=B8=BB=E9=A2=98: Re: [spring] WGLC for =
https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/

=20

Hi,

I support the WGLC for draft-ietf-spring-mpls-path-segment. Please find =
my =E2=80=9Clate=E2=80=9D comments. Hope they are still useful.


Minor


*	Section 2

*	The below text requires some more explanation

The Path Segment may be used to identify an SR-MPLS Policy, its =
Candidate-Path (CP), or a SID List (SL)

*	The document says Path Segment =E2=80=9Cuniquely identify an SR =
path=E2=80=9D, so how does that apply to SR policy/CP (which can have =
multiple paths) needs to be explicit.

[Weiqiang] The term of =E2=80=9CSR path=E2=80=9D used in this document =
is a general term that can be used to describe a SR policy, a =
Candidate-Path, or a SID List. So how about updating the 2nd paragraph =
with the following text:

=E2=80=9CThe term of SR path used in this document is a general term =
that can be used to describe a SR Policy, a Candidate-Path (CP), or a =
SID List (SL) [I-D.ietf-spring-segment-routing-policy]. Therefore, the =
Path Segment may be used to identify an SR Policy, its CP, or a SL =
terminating on an egress node depending on the use-case.=E2=80=9D

*	Section 2

*	This text

Normally, the intermediate nodes will not see the Path Segment label
and do not know how to process it. A Path Segment presenting to an
intermediate node is an error condition.

*	Path segment is just another label with no special marking, and since =
it is from the egress label space it is possible that the same label is =
used by the transit node for some other purpose. Not sure about =
=E2=80=9Cdo not know how to process it=E2=80=9D, is there a better way =
to frame this?

[Weiqiang] Maybe the simplest way to fix it is just to remove the =
=E2=80=9Cdo not know how to process it=E2=80=9D text, for example as =
below:

=E2=80=9CNormally, the intermediate nodes will not see the Path Segment =
label. A Path Segment presenting to an intermediate node is an error =
condition.=E2=80=9D

*	Section 8

*	This needs to be expanded. The path segment does carry a label in the =
packet that can be used to identify the flows that are using a =
particular path. The path segment in the control plane could also be =
exploited for incorrect correlation between paths.

[Weiqiang]

Sure, we will try to expand it a bit.

And if there is some suggestion text, that will be great.


Nits


*	Add references in the terminology section 1.2
*	Add references for SRLB/SRGB [RFC8402]
*	Section 2

*	s/SR-MPLS Policy/SR Policy/

*	Section 3

*	s/Path Computation Element Protocol (PCEP)/Path Computation Element =
Communication Protocol (PCEP)/

*	Section 5

*	s/[I-D.gandhi-mpls-ioam-sr]/[I-D.gandhi-mpls-ioam]
*	s/[I-D.gandhi-spring-stamp-srpm]/[I-D.ietf-spring-stamp-srpm]

[Weiqiang] Will fix the above nits in the revision.

=20

=20

Thanks!
Dhruv

=20

On Wed, Jul 7, 2021 at 9:19 PM James Guichard =
<james.n.guichard@futurewei.com> wrote:

Dear WG:

=20

This email starts a 2 week Working Group Last Call for =
draft-ietf-spring-mpls-path-segment [1].

=20

Please read this document if you haven=E2=80=99t read the most recent =
version and send your comments to the SPRING WG list no later than July =
21st 2021.=20

=20

If you are raising a point which you expect will be specifically debated =
on the mailing list, consider using a specific email/thread for this =
point.

=20

Lastly, if you are an author or contributor please response to indicate =
whether you know of any undisclosed IPR related to this document.=20

=20

Thanks!

=20

Jim, Joel & Bruno

=20

[1] =
https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/

=20

=20

=20

=20

_______________________________________________
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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</o:shapelayout></xml><![endif]--></head><body lang=3DZH-CN link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Hi Dhruv,<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Thanks for your comments.<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Looks good and we will update the text with your =
proposal.<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>B.R.<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Weiqiang Cheng<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><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=3DMsoNormal><b><span =
style=3D'font-size:10.0pt'>=E5=8F=91=E4=BB=B6=E4=BA=BA<span =
lang=3DEN-US>:</span></span></b><span lang=3DEN-US =
style=3D'font-size:10.0pt'> spring [mailto:spring-bounces@ietf.org] =
</span><b><span style=3D'font-size:10.0pt'>=E4=BB=A3=E8=A1=A8 =
</span></b><span lang=3DEN-US style=3D'font-size:10.0pt'>Dhruv =
Dhody<br></span><b><span =
style=3D'font-size:10.0pt'>=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4<span =
lang=3DEN-US>:</span></span></b><span lang=3DEN-US =
style=3D'font-size:10.0pt'> 2021</span><span =
style=3D'font-size:10.0pt'>=E5=B9=B4<span =
lang=3DEN-US>8</span>=E6=9C=88<span lang=3DEN-US>16</span>=E6=97=A5<span =
lang=3DEN-US> 13:32<br></span><b>=E6=94=B6=E4=BB=B6=E4=BA=BA<span =
lang=3DEN-US>:</span></b><span lang=3DEN-US> Weiqiang =
Cheng<br></span><b>=E6=8A=84=E9=80=81<span =
lang=3DEN-US>:</span></b><span lang=3DEN-US> James Guichard; =
spring@ietf.org; =
spring-chairs@ietf.org<br></span><b>=E4=B8=BB=E9=A2=98<span =
lang=3DEN-US>:</span></b><span lang=3DEN-US> Re: [spring] WGLC for =
https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/<o:p=
></o:p></span></span></p></div><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><div><div><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;letter-spacing:.25pt'>Thanks Weiqiang for handling my =
comments!&nbsp;</span><span lang=3DEN-US style=3D'font-family:"Trebuchet =
MS","sans-serif";color:#073763'><o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span lang=3DEN-US style=3D'font-family:"Trebuchet =
MS","sans-serif";color:#073763'><o:p>&nbsp;</o:p></span></p></div><div><p=
 class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;letter-spacing:.25pt'>Here is the first attempt for enhancing the =
security consideration section (for you to consider) -&nbsp;</span><span =
lang=3DEN-US style=3D'font-family:"Trebuchet =
MS","sans-serif";color:#073763'><o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span lang=3DEN-US style=3D'font-family:"Courier =
New";color:#073763'>OLD:<br><br>&nbsp; &nbsp;This document does not =
introduce additional security requirements and<br>&nbsp; =
&nbsp;mechanisms other than the ones described in [RFC8402].<br><br>NEW: =
<br><br>&nbsp; &nbsp;Path Segment in SR-MPLS does not introduce any new =
behavior or any <br>&nbsp; &nbsp;change in the way the MPLS data plane =
works. Section 8.1 of [RFC8402]<br>&nbsp; &nbsp;describe the security =
consideration for SR-MPLS. <br><br>&nbsp; &nbsp;Path segment is =
additional metadata that is added to the packet <br>&nbsp; =
&nbsp;consisting of the SR path. An attacker could exploit path segment =
to <br>&nbsp; &nbsp;manipulate the accounting of SR traffic at the =
egress. Path segment <br>&nbsp; &nbsp;could also be used to monitor =
traffic patterns for the E2E paths. <br>&nbsp; &nbsp;The control =
protocols used to allocate path segments could also be <br>&nbsp; =
&nbsp;exploited to disseminate incorrect path segment information. Note =
<br>&nbsp; &nbsp;that, the path segment is imposed at the ingress and =
removed at the <br>&nbsp; &nbsp;egress boundary and is not leaked out of =
the administered domain.<br><br>END</span><span lang=3DEN-US =
style=3D'color:#073763'><o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span lang=3DEN-US style=3D'font-family:"Trebuchet =
MS","sans-serif";color:#073763'><o:p>&nbsp;</o:p></span></p></div><div><p=
 class=3DMsoNormal><span lang=3DEN-US style=3D'font-family:"Trebuchet =
MS","sans-serif";color:#073763'>Thanks!&nbsp;<o:p></o:p></span></p></div>=
<div><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";color:#073763'>Dhruv<o:p></o:p></span></p></div></div><p=
 class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><div><div><p =
class=3DMsoNormal><span lang=3DEN-US>On Mon, Aug 16, 2021 at 8:03 AM =
Weiqiang Cheng &lt;<a =
href=3D"mailto:chengweiqiang@chinamobile.com">chengweiqiang@chinamobile.c=
om</a>&gt; wrote:<o:p></o:p></span></p></div><blockquote =
style=3D'border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm =
6.0pt;margin-left:4.8pt;margin-right:0cm'><div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Hi Dhruv,</span><span lang=3DEN-US><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Thanks a lot.</span><span lang=3DEN-US><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Comments are never late. </span><span =
lang=3DEN-US><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Responses are in-line</span><span =
lang=3DEN-US><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span lang=3DEN-US><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>B.R.</span><span lang=3DEN-US><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Weiqiang Cheng</span><span lang=3DEN-US><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span lang=3DEN-US><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span lang=3DEN-US><o:p></o:p></span></p><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm'><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span =
style=3D'font-size:10.0pt'>=E5=8F=91=E4=BB=B6=E4=BA=BA<span =
lang=3DEN-US>:</span></span></b><span lang=3DEN-US =
style=3D'font-size:10.0pt'> spring [mailto:<a =
href=3D"mailto:spring-bounces@ietf.org" =
target=3D"_blank">spring-bounces@ietf.org</a>] </span><b><span =
style=3D'font-size:10.0pt'>=E4=BB=A3=E8=A1=A8 </span></b><span =
lang=3DEN-US style=3D'font-size:10.0pt'>Dhruv Dhody<br></span><b><span =
style=3D'font-size:10.0pt'>=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4<span =
lang=3DEN-US>:</span></span></b><span lang=3DEN-US =
style=3D'font-size:10.0pt'> 2021</span><span =
style=3D'font-size:10.0pt'>=E5=B9=B4<span =
lang=3DEN-US>8</span>=E6=9C=88<span lang=3DEN-US>12</span>=E6=97=A5<span =
lang=3DEN-US> 01:56<br></span><b>=E6=94=B6=E4=BB=B6=E4=BA=BA<span =
lang=3DEN-US>:</span></b><span lang=3DEN-US> James =
Guichard<br></span><b>=E6=8A=84=E9=80=81<span =
lang=3DEN-US>:</span></b><span lang=3DEN-US> <a =
href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a>; =
<a href=3D"mailto:spring-chairs@ietf.org" =
target=3D"_blank">spring-chairs@ietf.org</a><br></span><b>=E4=B8=BB=E9=A2=
=98<span lang=3DEN-US>:</span></b><span lang=3DEN-US> Re: [spring] WGLC =
for <a =
href=3D"https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segm=
ent/" =
target=3D"_blank">https://datatracker.ietf.org/doc/draft-ietf-spring-mpls=
-path-segment/</a></span></span><span =
lang=3DEN-US><o:p></o:p></span></p></div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p><div><div><p =
style=3D'margin-bottom:12.0pt'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";color:#333333;letter-spacing:.25pt'>Hi,</span><span =
lang=3DEN-US><o:p></o:p></span></p><p =
style=3D'margin-bottom:12.0pt;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";color:#333333;letter-spacing:.25pt'>I support the WGLC =
for draft-ietf-spring-mpls-path-segment. Please find my =
=E2=80=9Clate=E2=80=9D comments. Hope they are still useful.</span><span =
lang=3DEN-US><o:p></o:p></span></p><h3 =
style=3D'margin-bottom:12.0pt;box-sizing:border-box' =
id=3D"gmail-m_2281587380457287178gmail-Minor"><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Trebuchet =
MS","sans-serif";color:#333333;letter-spacing:.25pt'>Minor</span><span =
lang=3DEN-US><o:p></o:p></span></h3><ul type=3Ddisc><li =
class=3DMsoNormal =
style=3D'color:#333333;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto=
;mso-list:l0 level1 lfo1;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>Section 2</span><span =
lang=3DEN-US><o:p></o:p></span></li></ul><ul type=3Ddisc><ul =
type=3Dcircle><li class=3DMsoNormal =
style=3D'color:#333333;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto=
;mso-list:l6 level2 lfo2;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>The below text requires some more =
explanation</span><span =
lang=3DEN-US><o:p></o:p></span></li></ul></ul><blockquote =
style=3D'border:none;border-left:solid #DDDDDD 3.0pt;padding:0cm 0cm 0cm =
12.0pt;margin-left:0cm;margin-top:5.0pt;margin-right:0cm;margin-bottom:12=
.0pt;box-sizing:border-box'><p =
style=3D'mso-margin-top-alt:5.0pt;margin-right:0cm;margin-bottom:0cm;marg=
in-left:36.0pt;margin-bottom:.0001pt;box-sizing:border-box'><span =
lang=3DEN-US style=3D'font-family:"Trebuchet =
MS","sans-serif";color:#777777;letter-spacing:.25pt'>The Path Segment =
may be used to identify an SR-MPLS Policy, its Candidate-Path (CP), or a =
SID List (SL)</span><span =
lang=3DEN-US><o:p></o:p></span></p></blockquote><ul type=3Ddisc><ul =
type=3Dcircle><li class=3DMsoNormal =
style=3D'color:#333333;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto=
;mso-list:l5 level2 lfo3'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>The document says Path Segment =
=E2=80=9Cuniquely identify an SR path=E2=80=9D, so how does that apply =
to SR policy/CP (which can have multiple paths) needs to be =
explicit.</span><span lang=3DEN-US><o:p></o:p></span></li></ul></ul><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;letter-spacing:.25pt'>[Weiqiang] The term of =E2=80=9CSR path=E2=80=9D =
used in this document is a general term that can be used to describe a =
SR policy, a Candidate-Path, or a SID List. So how about updating the =
2<sup>nd</sup> paragraph with the following text:</span><span =
lang=3DEN-US><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;letter-spacing:.25pt'>=E2=80=9CThe term of SR path used in this =
document is a general term that can be used to describe a SR Policy, a =
Candidate-Path (CP), or a SID List (SL) =
[I-D.ietf-spring-segment-routing-policy]. Therefore, the Path Segment =
may be used to identify an SR Policy, its CP, or a SL terminating on an =
egress node depending on the use-case.=E2=80=9D</span><span =
lang=3DEN-US><o:p></o:p></span></p><ul style=3D'margin-top:0cm' =
type=3Ddisc><li class=3DMsoNormal =
style=3D'color:#333333;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-li=
st:l2 level1 lfo4'><span lang=3DEN-US style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>Section 2</span><span =
lang=3DEN-US><o:p></o:p></span></li></ul><ul type=3Ddisc><ul =
type=3Dcircle><li class=3DMsoNormal =
style=3D'color:#333333;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto=
;mso-list:l11 level2 lfo5;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>This text</span><span =
lang=3DEN-US><o:p></o:p></span></li></ul></ul><blockquote =
style=3D'border:none;border-left:solid #DDDDDD 3.0pt;padding:0cm 0cm 0cm =
12.0pt;margin-left:0cm;margin-top:5.0pt;margin-right:0cm;margin-bottom:12=
.0pt;box-sizing:border-box'><p =
style=3D'mso-margin-top-alt:5.0pt;margin-right:0cm;margin-bottom:0cm;marg=
in-left:36.0pt;margin-bottom:.0001pt;box-sizing:border-box'><span =
lang=3DEN-US style=3D'font-family:"Trebuchet =
MS","sans-serif";color:#777777;letter-spacing:.25pt'>Normally, the =
intermediate nodes will not see the Path Segment label<br>and do not =
know how to process it. A Path Segment presenting to an<br>intermediate =
node is an error condition.</span><span =
lang=3DEN-US><o:p></o:p></span></p></blockquote><ul type=3Ddisc><ul =
type=3Dcircle><li class=3DMsoNormal =
style=3D'color:#333333;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto=
;mso-list:l1 level2 lfo6;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>Path segment is just another =
label with no special marking, and since it is from the egress label =
space it is possible that the same label is used by the transit node for =
some other purpose. Not sure about =E2=80=9Cdo not know how to process =
it=E2=80=9D, is there a better way to frame this?</span><span =
lang=3DEN-US><o:p></o:p></span></li></ul></ul><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;letter-spacing:.25pt'>[Weiqiang] Maybe the simplest way to fix it is =
just to remove the =E2=80=9Cdo not know how to process it=E2=80=9D text, =
for example as below:</span><span lang=3DEN-US><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;letter-spacing:.25pt'>=E2=80=9CNormally, the intermediate nodes will =
not see the Path Segment label. A Path Segment presenting to an =
intermediate node is an error condition.=E2=80=9D</span><span =
lang=3DEN-US><o:p></o:p></span></p><ul style=3D'margin-top:0cm' =
type=3Ddisc><li class=3DMsoNormal =
style=3D'color:#333333;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-li=
st:l3 level1 lfo7'><span lang=3DEN-US style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>Section 8</span><span =
lang=3DEN-US><o:p></o:p></span></li></ul><ul type=3Ddisc><ul =
type=3Dcircle><li class=3DMsoNormal =
style=3D'color:#333333;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto=
;mso-list:l7 level2 lfo8;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>This needs to be expanded. The =
path segment does carry a label in the packet that can be used to =
identify the flows that are using a particular path. The path segment in =
the control plane could also be exploited for incorrect correlation =
between paths.</span><span =
lang=3DEN-US><o:p></o:p></span></li></ul></ul><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;letter-spacing:.25pt'>[Weiqiang]</span><span =
lang=3DEN-US><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;letter-spacing:.25pt'>Sure, we will try to expand it a =
bit.</span><span lang=3DEN-US><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;letter-spacing:.25pt'>And if there is some suggestion text, that will =
be great.</span><span lang=3DEN-US><o:p></o:p></span></p><h3 =
style=3D'margin-bottom:12.0pt'><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Trebuchet =
MS","sans-serif";color:#333333;letter-spacing:.25pt'>Nits</span><span =
lang=3DEN-US><o:p></o:p></span></h3><ul type=3Ddisc><li =
class=3DMsoNormal =
style=3D'color:#333333;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto=
;mso-list:l13 level1 lfo9;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>Add references in the terminology =
section 1.2</span><span lang=3DEN-US><o:p></o:p></span></li><li =
class=3DMsoNormal =
style=3D'color:#333333;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-li=
st:l13 level1 lfo9;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>Add references for SRLB/SRGB =
[RFC8402]</span><span lang=3DEN-US><o:p></o:p></span></li><li =
class=3DMsoNormal =
style=3D'color:#333333;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-li=
st:l13 level1 lfo9;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>Section 2</span><span =
lang=3DEN-US><o:p></o:p></span></li></ul><ul type=3Ddisc><ul =
type=3Dcircle><li class=3DMsoNormal =
style=3D'color:#333333;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto=
;mso-list:l9 level2 lfo10;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>s/SR-MPLS Policy/SR =
Policy/</span><span lang=3DEN-US><o:p></o:p></span></li></ul></ul><ul =
style=3D'margin-top:0cm' type=3Ddisc><li class=3DMsoNormal =
style=3D'color:#333333;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-li=
st:l10 level1 lfo11;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>Section 3</span><span =
lang=3DEN-US><o:p></o:p></span></li></ul><ul type=3Ddisc><ul =
type=3Dcircle><li class=3DMsoNormal =
style=3D'color:#333333;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto=
;mso-list:l4 level2 lfo12;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>s/Path Computation Element =
Protocol (PCEP)/Path Computation Element Communication Protocol =
(PCEP)/</span><span lang=3DEN-US><o:p></o:p></span></li></ul></ul><ul =
style=3D'margin-top:0cm' type=3Ddisc><li class=3DMsoNormal =
style=3D'color:#333333;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-li=
st:l8 level1 lfo13;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>Section 5</span><span =
lang=3DEN-US><o:p></o:p></span></li></ul><ul type=3Ddisc><ul =
type=3Dcircle><li class=3DMsoNormal =
style=3D'color:#333333;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto=
;mso-list:l12 level2 lfo14;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>s/[I-D.gandhi-mpls-ioam-sr]/[I-D.g=
andhi-mpls-ioam]</span><span lang=3DEN-US><o:p></o:p></span></li><li =
class=3DMsoNormal =
style=3D'color:#333333;margin-top:3.0pt;mso-margin-bottom-alt:auto;mso-li=
st:l12 level2 lfo14;box-sizing:border-box'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";letter-spacing:.25pt'>s/[I-D.gandhi-spring-stamp-srpm]/[=
I-D.ietf-spring-stamp-srpm]</span><span =
lang=3DEN-US><o:p></o:p></span></li></ul></ul><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;box-sizing:bo=
rder-box'><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;letter-spacing:.25pt'>[Weiqiang] Will fix the above nits in the =
revision.</span><span lang=3DEN-US><o:p></o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";color:#1F497D;letter-spacing:.25pt'>&nbsp;</span><span =
lang=3DEN-US><o:p></o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt'><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;letter-spacing:.25pt'>&nbsp;</span><span =
lang=3DEN-US><o:p></o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt'><span lang=3DEN-US =
style=3D'font-family:"Trebuchet =
MS","sans-serif";color:#333333;letter-spacing:.25pt'>Thanks!<br>Dhruv</sp=
an><span lang=3DEN-US><o:p></o:p></span></p></div></div><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p><div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>On Wed, Jul 7, 2021 at 9:19 PM James Guichard &lt;<a =
href=3D"mailto:james.n.guichard@futurewei.com" =
target=3D"_blank">james.n.guichard@futurewei.com</a>&gt; =
wrote:<o:p></o:p></span></p></div><blockquote =
style=3D'border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm =
6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5=
.0pt'><div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>Dear WG:<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>This email starts a 2 week Working Group Last Call for =
draft-ietf-spring-mpls-path-segment [1].<o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>Please read this document if you haven=E2=80=99t read the =
most recent version and send your comments to the SPRING WG list no =
later than July 21<sup>st</sup> 2021. <o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US style=3D'color:#212529'>If you are raising a point which =
you expect will be specifically debated on the mailing list, consider =
using a specific email/thread for this point.</span><span =
lang=3DEN-US><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US style=3D'color:#212529'>&nbsp;</span><span =
lang=3DEN-US><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US style=3D'color:#212529'>Lastly, if you are an author or =
contributor please response to indicate whether you know of any =
undisclosed IPR related to this document. </span><span =
lang=3DEN-US><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>Thanks!<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>Jim, Joel &amp; Bruno<o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:wh=
ite'><span lang=3DEN-US style=3D'color:black'>[1] <a =
href=3D"https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segm=
ent/" =
target=3D"_blank">https://datatracker.ietf.org/doc/draft-ietf-spring-mpls=
-path-segment/</a></span><span lang=3DEN-US><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:wh=
ite'><span lang=3DEN-US>&nbsp;<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>_______________________________________________<br>spring =
mailing list<br><a href=3D"mailto:spring@ietf.org" =
target=3D"_blank">spring@ietf.org</a><br><a =
href=3D"https://www.ietf.org/mailman/listinfo/spring" =
target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><o:p></=
o:p></span></p></blockquote></div></div></div><p class=3DMsoNormal><span =
lang=3DEN-US>_______________________________________________<br>spring =
mailing list<br><a href=3D"mailto:spring@ietf.org" =
target=3D"_blank">spring@ietf.org</a><br><a =
href=3D"https://www.ietf.org/mailman/listinfo/spring" =
target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><o:p></=
o:p></span></p></blockquote></div></div></body></html>
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From: Lizhenbin <lizhenbin@huawei.com>
To: "draft-ali-teas-spring-ns-building-blocks@ietf.org" <draft-ali-teas-spring-ns-building-blocks@ietf.org>, "draft-filsfils-spring-srv6-stateless-slice-id@ietf.org" <draft-filsfils-spring-srv6-stateless-slice-id@ietf.org>, "draft-decraene-mpls-slid-encoded-entropy-label-id@ietf.org" <draft-decraene-mpls-slid-encoded-entropy-label-id@ietf.org>
CC: Tarek Saad <tsaad.net@gmail.com>, TEAS WG <teas@ietf.org>, John E Drake <jdrake=40juniper.net@dmarc.ietf.org>, "Dongjie (Jimmy)" <jie.dong@huawei.com>, "EXT-vishnupavan@gmail.com" <vishnupavan@gmail.com>, Adrian Farrel <adrian@olddog.co.uk>, "mpls@ietf.org" <mpls@ietf.org>, "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [Teas] New term for the underlay construct used for slice realization
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Subject: Re: [spring] [Teas] New term for the underlay construct used for slice realization
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Hi authors of draft-ali-teas-spring-ns-building-blocks/draft-filsfils-sprin=
g-srv6-stateless-slice-id/draft-decraene-mpls-slid-encoded-entropy-label-id=
,

It is known that your drafts are also related with the underlay construct u=
sed for slice realization. It also seems that you use the term with "slice"=
 for the underlay construct. In the discussion of TEAS WG, there is some co=
nsensus to define a neutral new term without "slice".  Wish to learn your o=
pinions on the new term definition and there would be a convergence on the =
new term after your participating in the discussion.


Best Regards,
Robin



From: Teas [mailto:teas-bounces@ietf.org] On Behalf Of John E Drake
Sent: Monday, August 16, 2021 8:53 PM
To: Dongjie (Jimmy) <jie.dong@huawei.com>; EXT-vishnupavan@gmail.com <vishn=
upavan@gmail.com>; Adrian Farrel <adrian@olddog.co.uk>
Cc: Tarek Saad <tsaad.net@gmail.com>; TEAS WG <teas@ietf.org>
Subject: Re: [Teas] New term for the underlay construct used for slice real=
ization

Hi,

It sounds like slice aggregates, or more generally overlay network service =
aggregates, are the things which use resource partitions.

Yours Irrespectively,

John



Juniper Business Use Only
From: Teas <teas-bounces@ietf.org<mailto:teas-bounces@ietf.org>> On Behalf =
Of Dongjie (Jimmy)
Sent: Friday, August 13, 2021 9:20 AM
To: EXT-vishnupavan@gmail.com<mailto:EXT-vishnupavan@gmail.com> <vishnupava=
n@gmail.com<mailto:vishnupavan@gmail.com>>; Adrian Farrel <adrian@olddog.co=
.uk<mailto:adrian@olddog.co.uk>>
Cc: Tarek Saad <tsaad.net@gmail.com<mailto:tsaad.net@gmail.com>>; TEAS WG <=
teas@ietf.org<mailto:teas@ietf.org>>
Subject: Re: [Teas] New term for the underlay construct used for slice real=
ization

[External Email. Be cautious of content]

Hi Pavan,

Sorry for chiming in, please see some comments inline:

From: Teas [mailto:teas-bounces@ietf.org] On Behalf Of Vishnu Pavan Beeram
Sent: Friday, August 13, 2021 1:32 AM
To: Adrian Farrel <adrian@olddog.co.uk<mailto:adrian@olddog.co.uk>>
Cc: Tarek Saad <tsaad.net@gmail.com<mailto:tsaad.net@gmail.com>>; TEAS WG <=
teas@ietf.org<mailto:teas@ietf.org>>
Subject: Re: [Teas] New term for the underlay construct used for slice real=
ization

** As a WG participant.. **

Adrian, Hi!

Thanks for your earlier emails in this thread that have helped drill down t=
he discussion to the specific item that needs a fresh term!
Please see inline (prefixed VPB).

-Pavan (as a WG participant)

On Thu, Aug 12, 2021 at 10:05 AM Adrian Farrel <adrian@olddog.co.uk<mailto:=
adrian@olddog.co.uk>> wrote:
Thanks for your useful opinion, Tarek.

I have no objection to the use of the word "aggregate". It is generally use=
d to express grouping together to treat as a single entity or to be treated=
 in the same way.

But I do like "foo aggregate" to mean that a number of foo have been aggreg=
ated.

[VPB] But, that isn't necessarily how IETF has been using the term "aggrega=
te".  "Behavior Aggregate" (as defined in IETF) doesn't mean aggregating be=
haviors. The same goes for "Treatment Aggregate". Behavior Aggregate (the w=
ay we read/interpret it) is an aggregate with a specific behavior.

[Jie] I just checked the definition of the "aggregate" related terms in the=
 RFCs:

Behavior Aggregate (defined in RFC 2474): a collection of packets with the =
same codepoint crossing a link in a particular direction."

Traffic Aggregate (defined in RFC 3086): a collection of packets with a cod=
epoint that maps to the same PHB, usually in a DS domain or some subset of =
a DS domain.

Treatment Aggregate (defined in RFC 5127): This term is defined as the aggr=
egate of Diffserv service classes.  A treatment aggregate is concerned only=
 with the forwarding treatment of the aggregated traffic,  which may be mar=
ked with multiple DSCPs.

My reading of these definitions is that "aggregate" here means either aggre=
gated packets or aggregated service classes which are treated in the same w=
ay on a particular node or link.

While what we want to describe with the new term IMO is "a group of network=
 resources allocated on a set of network nodes and links". Such group of re=
sources can be provisioned in different places of the network and are organ=
ized together to provide a specific network-level behavior.

Thus the key information to be delivered with the new term is "a group of o=
rganized resources in the network", rather than "aggregated behavior at a p=
articular point".

Best regards,
Jie

So "slice aggregate" would be an aggregation of slices. Your use in I-D.dra=
ft-bestbar-teas-ns-packet is, therefore, confusing. If the slices are *not*=
 separated out into different flows (or traffic streams) then, yes, you are=
 aggregating slices. But if the slices are separated out, as you describe, =
then what you have is "IETF network slice traffic stream aggregation".


[VPB] Yes. The definition of the slice aggregate (as defined in draft-bestb=
ar-teas-ns-packet) does state that the slice aggregate comprises of one or =
more IETF network slice traffic streams.  We could have chosen a longer des=
criptive name, but opted to keep it short.


"Network resource aggregate" would imply that resources have been collected=
 together to be used as a single entity.

[VPB] Not necessarily. "Network Resource Aggregate" isn't meant to imply "a=
ggregating network resources". The intent behind the proposal is to say tha=
t it is an aggregate that has specific network resources.

You might do that, for example, with a set of parallel links that can be ag=
gregated (or bundled) and treated as a single link.

I don't think we are aggregating resources in this case. We are grouping, p=
rofiling, partitioning, collecting, or even filtering.

Adrian

From: Tarek Saad <tsaad.net@gmail.com<mailto:tsaad.net@gmail.com>>
Sent: 12 August 2021 15:41
To: adrian@olddog.co.uk<mailto:adrian@olddog.co.uk>; 'Kiran Makhijani' <kir=
an.ietf@gmail.com<mailto:kiran.ietf@gmail.com>>; 'John E Drake' <jdrake=3D4=
0juniper.net@dmarc.ietf.org<mailto:40juniper.net@dmarc.ietf.org>>; 'Dongjie=
 (Jimmy)' <jie.dong@huawei.com<mailto:jie.dong@huawei.com>>; 'Lizhenbin' <l=
izhenbin@huawei.com<mailto:lizhenbin@huawei.com>>; teas@ietf.org<mailto:tea=
s@ietf.org>
Subject: Re: [Teas] New term for the underlay construct used for slice real=
ization

Hi Adrian/all,

As described in I-D.ietf-teas-ietf-network-slice-definition, an IETF Networ=
k Slice service may include multiple connections that associate sets of end=
points - each having a set of SLOs/SLEs.
In I-D.draft-bestbar-teas-ns-packet, we defined a Slice Aggregate as a cons=
truct that comprises of one or more IETF network slice traffic streams that=
 share the same set of SLOs/SLEs.
The Slice Aggregate construct allows aggregating streams from multiple IETF=
 Network Slice connections that share common SLOs/SLEs so that the provider=
 network can offer the same aggregate treatment to them. The Slice Aggregat=
e resources are instantiated on specific network elements as dictated by th=
e Slice Aggregate topology.

Since the scope of I-D.draft-bestbar-teas-ns-packet was the realization of =
IETF Network Slice service in a provider network, we had constrained the ag=
gregate construct to slices.

We understand that the aggregate construct can be generalized to support ot=
her services. Let us offer another option to consider for representing the =
generic construct: "Network Resource Aggregate". There are multiple IETF do=
cuments that use the term Aggregate whenever grouping multiple service clas=
ses (Behavior Aggregate, Treatment Aggregate, Traffic Aggregate, etc.) - re=
fer to rfc5127 and rfc2474 for more examples.

Regards,
Tarek


From: Teas <teas-bounces@ietf.org<mailto:teas-bounces@ietf.org>> on behalf =
of Adrian Farrel <adrian@olddog.co.uk<mailto:adrian@olddog.co.uk>>
Date: Wednesday, August 11, 2021 at 3:38 PM
To: 'Kiran Makhijani' <kiran.ietf@gmail.com<mailto:kiran.ietf@gmail.com>>, =
'John E Drake' <jdrake=3D40juniper.net@dmarc.ietf.org<mailto:jdrake=3D40jun=
iper.net@dmarc.ietf.org>>, 'Dongjie (Jimmy)' <jie.dong@huawei.com<mailto:ji=
e.dong@huawei.com>>, 'Lizhenbin' <lizhenbin@huawei.com<mailto:lizhenbin@hua=
wei.com>>, teas@ietf.org<mailto:teas@ietf.org> <teas@ietf.org<mailto:teas@i=
etf.org>>
Subject: Re: [Teas] New term for the underlay construct used for slice real=
ization
I wonder whether we can pick this apart and put it back together in a way
that makes sense.

The customer's view of all this is an "IETF network slice service". I think
(hope) we are all agreed on this. The customer may ask (in shorthand) for a
"network slice", but:
- they are talking about IETF technology, so they asking for an "IETF
network slice"
- they actually want behavioural characteristics and have no right to tell
the operator
  how to manage the network, so they are asking for an "IETF network slice
service."

The operator has a bigger set of things to worry about.

1. At the top of the operator's view is the "IETF network slice service" as
    requested by the customer. We have this defined already, so nothing mor=
e
    to say.

2. The operator maps the request for a slice service into the "IETF network
    slice" which is the expression of the service in terms of network
connectivity
    in the context of the operator's network. The relationship here is like
the
    relationship between the L3SM and L3NM.

3. At the bottom of their view is an underlying network. The technology of
this
   network depends, of course, on the operator's offering, but this is the
network
   technology being sliced. It may be an IP network, and MPLS network, an
OTN,
   or whatever. I would call this the "Underlay Network." This network may,
in
   turn, be built upon an underlay network of the same or a different
technology,
   and it may be facilitated through network slicing - but this need not
concern
   us here.

4. That leaves the glue in the middle: the bit that enables the scaling and
maps
   the network slice to the network. And I think it is this bit that is
causing the
   most debate about terminology. There are some points to consider:

   a. The term "network resources" applies to the bandwidth, queues,
buffers,
       etc. available on the links and nodes in the network. That may be
       extended to refer to whole links and nodes.

   b. The number of IETF network slice services is potentially large and th=
e
       operator needs a mechanism to scale the mapping of services to
       network resources.

   c. The IETF network slices may be grouped for identical treatment to
       achieve scaling, where the grouping collects IETF network slices wit=
h
       similar SLAs.

   d. It may be that different traffic flows within a single IETF network
slice
        have different characteristics. In this case, it may be beneficial
to group
        together some of the traffic flows from different slices.

   e. The grouped slices/flows are enabled in the network using network
        resources assigned for that purpose. The assignment may be anything
        from a fully-fledged virtual network (such as in ACTN or VPN+),
through
        network reserved resources (such as in MPLS-TE), and centrally
        accounted resources (such as SDN or possible SR), to statistically
        shared resources.

There seems to be various points for and against 4d. But, it would appear
that this is an implementation or deployment issue that doesn't change what
the protocols need to do. So we should probably allow it architecturally, o=
r
at least, not disallow it.

Of course, as Kiran points out, 4c/d/e may be a pass-through. That is, it i=
s
not necessary to implement such groupings either because there are only a
few slices (which has been the view of some operators) or because the
network systems can handle the number of slices. And it is in the nature of
architectures of this sort that all functions can be nulled out without los=
s
of generality, and we have to recall that the internals of provisioning
systems may appear as functional blocks in our architectures, but we don't
compel implementations to adhere to that type of architecture. So I don't
think we have to worry on that account.

And that brings the question of how we name the resources that are gathered
in 4e.

I can't decide whether it is helpful to spend time saying why I don't like
each of the proposed terms. I certainly have things I don't like about (for
example) "slice aggregate" (because of 4d, which means it is really a "slic=
e
sub-flow aggregate"), and I am not a fan of "VTN" (because of "transport"
and maybe it is not really a network). But maybe it is better for me to say
what I think we should call things? I think we have...

-       IETF network slice service (customer view)
-       IETF network slice (operator view)
-       Resource partition (delivery mechanism)
-       Underlay network (network used to support the slice)

Why "resource partition"? Well it is a collection of "nodes, links, and
network resources that are marked within the network for use by a set of
network slice traffic flows".
It is possible that the word "partition" is too strong because it may imply
to some people that resources in a partition cannot be shared, but I don't
feel that.
Softer words than "partition" would be "group", "bundle", "pool", and I
could live with any of them.

Best,
Adrian


-----Original Message-----
From: Teas <teas-bounces@ietf.org<mailto:teas-bounces@ietf.org>> On Behalf =
Of Kiran Makhijani
Sent: 11 August 2021 16:00
To: John E Drake <jdrake=3D40juniper.net@dmarc.ietf.org<mailto:jdrake=3D40j=
uniper.net@dmarc.ietf.org>>; Dongjie (Jimmy)
<jie.dong@huawei.com<mailto:jie.dong@huawei.com>>; Lizhenbin <lizhenbin@hua=
wei.com<mailto:lizhenbin@huawei.com>>; teas@ietf.org<mailto:teas@ietf.org>
Subject: Re: [Teas] New term for the underlay construct used for slice
realization

Hi John, (and all),

Two very basic clarification questions:
1. How do we differentiate between  the slice-segments that are
resource-aware vs those that are not? I had assumed that since a slice
has an SLO, it will need network resource allocations in some form.

2. Is it ok to assume that the customer view of slice is an 'IETF
network slice service' and the 'IETF slice realization' of that service
in a provider network is raises the question of underlay and overlay
constructs. Am I right?
(a) if so, then we are acknowledging  the presence of another layer of
abstraction (for realization). It could be underlay/overlay or
aggregate/??. Then the term 'slice aggregate' is better and my
preference, it is easier to see that different slice-services are
aggregated into a single construct  in a provider network. Use of
underlay/overlay are confusing.
(b) for a leaner provisioning, I would also prefer to see it documented
that the aggregate is optional and it should be possible to directly map
a slice-service to physical or real resources in the network.
specifically useful when a single domain is carving out slices for
different purposes.

Thanks
Kiran


------ Original Message ------
From: "John E Drake" <jdrake=3D40juniper.net@dmarc.ietf.org<mailto:jdrake=
=3D40juniper.net@dmarc.ietf.org>>
To: "Dongjie (Jimmy)" <jie.dong@huawei.com<mailto:jie.dong@huawei.com>>; "L=
izhenbin"
<lizhenbin@huawei.com<mailto:lizhenbin@huawei.com>>; "teas@ietf.org<mailto:=
teas@ietf.org>" <teas@ietf.org<mailto:teas@ietf.org>>
Sent: 8/11/2021 5:38:05 AM
Subject: Re: [Teas] New term for the underlay construct used for slice
realization

>Jimmy,
>
>Snipped, comments inline.
>
>Yours Irrespectively,
>
>John
>
>
>Juniper Business Use Only
>
>>  -----Original Message-----
>>  From: Dongjie (Jimmy) <jie.dong@huawei.com<mailto:jie.dong@huawei.com>>
>>  Sent: Tuesday, August 10, 2021 11:03 PM
>>  To: John E Drake <jdrake@juniper.net<mailto:jdrake@juniper.net>>; Lizhe=
nbin <lizhenbin@huawei.com<mailto:lizhenbin@huawei.com>>;
>>teas@ietf.org<mailto:teas@ietf.org>
>>  Subject: RE: New term for the underlay construct used for slice
realization
>>
>>  [External Email. Be cautious of content]
>>
>underlay construct for network slice realization bound to
>>  > > network slice services? That is, is the underlay construct only for
>>  > > use in network slicing, or should it be generalized for more
possible uses?
>>  >
>>  > [JD] Absolutely yes
>>
>>  [Jie] I guess you mean "Yes" to the latter case, which is "it should be
generalized
>>  for more possible uses", is my understanding correct?
>
>[JD]  Yes to the latter
>
>>
>>  >
>>  > >
>>  > > 2.      If the answer to question 1 is YES, should it reflect the
following
>>  > > characteristics?
>>  > >
>>  > > a.      It is about the underlay
>>  > > b.      It is about the partitioned resources used to deliver the
network slice
>>  > > services
>>  > > c.      It allows the 1:1, N:1, and 1:N mapping models between the
network
>>  > slice
>>  > > services and the underlay construct. The 1:1 and N:1 mapping may be
>>  > > straightforward. Does it also make sense to divide the elements or
>>  > > traffic flows in a single network slice service to carry them in
>>  > > different
>>  > underlay constructs?
>>  >
>>  > [JD]  Yes to all of the above.  Please see:
>>  > https://urldefense.com/v3/__https://datatracker.ietf.org/doc/html/dra=
f<https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/html/draf>
>>  > t-drake-bess-enhanced-vpn-06__;!!NEt6yMaO-
>>  gk!TCiJHCZCwFgwpuFoujxVlZ4r9
>>  > F6mLpE4nJ-9zpqkY-kls-ROxL4C2_xNaR2ImI4$
>>  > >
>>  > > Lastly, here are some candidates of the "new term":
>>  > >
>>  > > Option 1: The network slice service is called "overlay slice", then
>>  > > the underlay construct is called "underlay slice".
>>  > >
>>  > > Option 2: The network slice service is called "service slice", then
>>  > > the underlay construct is called "resource slice".
>>  >
>>  > [JD]  I don't think we need another term for what we are already
>>  > calling an 'IETF Network Slice Service'.  Adrian and I are considerin=
g
>>  > the term 'resource partition' to describe the partitioning of underla=
y
>>  > network resources in support of various overlay services such as IETF
Network
>>  Slice Services.
>>  > This is congruent with the ideas expressed in:
>>  > https://urldefense.com/v3/__https://datatracker.ietf.org/doc/html/dra=
f<https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/html/draf>
>>  > t-ietf-spring-resource-aware-segmen__;!!NEt6yMaO-
>>  gk!TCiJHCZCwFgwpuFouj
>>  > xVlZ4r9F6mLpE4nJ-9zpqkY-kls-ROxL4C2_xNxEfwaXg$
>>  > ts-03.  What this allows one to build is an 'partitioned underlay
>>  > network topology'.
>>
>>  [Jie] Agree that here we are talking about the term for the underlay
construct.
>>  "Resource partition" captures one of its key characteristics, while IMO
another
>>  thing the term needs to reflect is that the resource partition is neede=
d
on a
>>  subset of the links and nodes (rather than on a single node or link) in
the physical
>>  network, which together builds a logical network topology.
>
>[JD]  In my initial email, above, I was proposing 'partitioned underlay
network topology'
>
>>
>>  Best regards,
>>  Jie
>>
>>  >
>>  > >
>>  > > Your opinion about these candidates are much appreciated. You may
>>  > > also propose other new term if it complies with the above two
points.
>>  >
>>  > [JD]  I think you have exceeded your remit.
>>  >
>>  > >
>>  > >
>>  > >
>>  > > Best Regards,
>>  > > Robin
>>  > >
>>  > > _______________________________________________
>>  > > Teas mailing list
>>  > > Teas@ietf.org<mailto:Teas@ietf.org>
>>  > > https://urldefense.com/v3/__https://www.ietf.org/mailman/listinfo/t=
e<https://urldefense.com/v3/__https:/www.ietf.org/mailman/listinfo/te>
>>  > > as
>>  > > __;!!N
>>  > > Et6yMaO-gk!Q0ycOf0ELxT6mG1GbnO4LSL-Q99J4uu7jfdUtBECaI-
>>  > > O08HqD31TGJciNjuxL2A$
>>  >
>>  > _______________________________________________
>>  > Teas mailing list
>>  > Teas@ietf.org<mailto:Teas@ietf.org>
>>  > https://urldefense.com/v3/__https://www.ietf.org/mailman/listinfo/tea=
s<https://urldefense.com/v3/__https:/www.ietf.org/mailman/listinfo/teas>
>>  > __;!!NEt6yMaO-gk!TCiJHCZCwFgwpuFoujxVlZ4r9F6mLpE4nJ-9zpqkY-kls-
>>  ROxL4C2
>>  > _xNDCrPaNQ$
>
>_______________________________________________
>Teas mailing list
>Teas@ietf.org<mailto:Teas@ietf.org>
>https://www.ietf.org/mailman/listinfo/teas<https://urldefense.com/v3/__htt=
ps:/www.ietf.org/mailman/listinfo/teas__;!!NEt6yMaO-gk!TKJch2dwsJUTEeFWCMLa=
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<body lang=3D"ZH-CN" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Hi authors of draft-al=
i-teas-spring-ns-building-blocks/draft-filsfils-spring-srv6-stateless-slice=
-id/draft-decraene-mpls-slid-encoded-entropy-label-id,<o:p></o:p></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">It is known that your =
drafts are also related with the underlay construct used for slice realizat=
ion. It also seems that you use the term with &#8220;slice&#8221;
 for the underlay construct. In the discussion of TEAS WG, there is some co=
nsensus to define a neutral new term without &#8220;slice&#8221;. &nbsp;Wis=
h to learn your opinions on the new term definition and there would be a co=
nvergence on the new term after your participating
 in the discussion.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Best Regards,<o:p></o:=
p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Robin<o:p></o:p></span=
></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><a name=3D"_MailEndCompose"><span lang=3D"EN-US" sty=
le=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F=
497D"><o:p>&nbsp;</o:p></span></a></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"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,sans-serif">From:</span></b><span lang=3D"EN-=
US" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif"> =
Teas [mailto:teas-bounces@ietf.org]
<b>On Behalf Of </b>John E Drake<br>
<b>Sent:</b> Monday, August 16, 2021 8:53 PM<br>
<b>To:</b> Dongjie (Jimmy) &lt;jie.dong@huawei.com&gt;; EXT-vishnupavan@gma=
il.com &lt;vishnupavan@gmail.com&gt;; Adrian Farrel &lt;adrian@olddog.co.uk=
&gt;<br>
<b>Cc:</b> Tarek Saad &lt;tsaad.net@gmail.com&gt;; TEAS WG &lt;teas@ietf.or=
g&gt;<br>
<b>Subject:</b> Re: [Teas] New term for the underlay construct used for sli=
ce realization<o:p></o:p></span></p>
</div>
</div>
<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" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif">Hi,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif">It sounds like slice aggregates, or =
more generally overlay network service aggregates, are the things which use=
 resource partitions.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif">Yours Irrespectively,<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif">John<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0cm;margin=
-bottom:.0001pt;text-align:center">
<span lang=3D"EN-US" style=3D"font-size:7.0pt;color:black">Juniper Business=
 Use Only</span><span lang=3D"EN-US"><o:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,sans-serif">From:</span></b><span lang=3D"EN-=
US" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif"> =
Teas &lt;<a href=3D"mailto:teas-bounces@ietf.org">teas-bounces@ietf.org</a>=
&gt;
<b>On Behalf Of </b>Dongjie (Jimmy)<br>
<b>Sent:</b> Friday, August 13, 2021 9:20 AM<br>
<b>To:</b> <a href=3D"mailto:EXT-vishnupavan@gmail.com">EXT-vishnupavan@gma=
il.com</a> &lt;<a href=3D"mailto:vishnupavan@gmail.com">vishnupavan@gmail.c=
om</a>&gt;; Adrian Farrel &lt;<a href=3D"mailto:adrian@olddog.co.uk">adrian=
@olddog.co.uk</a>&gt;<br>
<b>Cc:</b> Tarek Saad &lt;<a href=3D"mailto:tsaad.net@gmail.com">tsaad.net@=
gmail.com</a>&gt;; TEAS WG &lt;<a href=3D"mailto:teas@ietf.org">teas@ietf.o=
rg</a>&gt;<br>
<b>Subject:</b> Re: [Teas] New term for the underlay construct used for sli=
ce realization<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"line-height:12.0pt;background:#FFEB9C"><b><=
span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:Lato;color:black"=
>[External Email. Be cautious of content]<o:p></o:p></span></b></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Hi Pavan,
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Sorry for chiming in, =
please see some comments inline:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></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"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,sans-serif">From:</span></b><span lang=3D"EN-=
US" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif"> =
Teas [<a href=3D"mailto:teas-bounces@ietf.org">mailto:teas-bounces@ietf.org=
</a>]
<b>On Behalf Of </b>Vishnu Pavan Beeram<br>
<b>Sent:</b> Friday, August 13, 2021 1:32 AM<br>
<b>To:</b> Adrian Farrel &lt;<a href=3D"mailto:adrian@olddog.co.uk">adrian@=
olddog.co.uk</a>&gt;<br>
<b>Cc:</b> Tarek Saad &lt;<a href=3D"mailto:tsaad.net@gmail.com">tsaad.net@=
gmail.com</a>&gt;; TEAS WG &lt;<a href=3D"mailto:teas@ietf.org">teas@ietf.o=
rg</a>&gt;<br>
<b>Subject:</b> Re: [Teas] New term for the underlay construct used for sli=
ce realization<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">** As a WG participant.. **<o:p=
></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><br>
Adrian, Hi!<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><br>
Thanks for your earlier emails in this thread that have helped drill down t=
he discussion to the specific item that needs a fresh term!<br>
Please see inline (prefixed VPB).<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><br>
-Pavan (as a WG participant)<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">On Thu, Aug 12, 2021 at 10:05 A=
M Adrian Farrel &lt;<a href=3D"mailto:adrian@olddog.co.uk">adrian@olddog.co=
.uk</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-top:5.0pt;margin-right:0cm;margin-=
bottom:5.0pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-GB">Thanks for your useful opinion, Tarek.<o:p></=
o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-GB">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-GB">I have no objection to the use of the word
</span>&#8220;<span lang=3D"EN-GB">aggregate</span>&#8221;<span lang=3D"EN-=
GB">. It is generally used to express grouping together to treat as a singl=
e entity or to be treated in the same way.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-GB">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-GB">But I do like
</span>&#8220;<span lang=3D"EN-GB">foo aggregate</span>&#8221;<span lang=3D=
"EN-GB"> to mean that a number of foo have been aggregated.<o:p></o:p></spa=
n></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">[VPB]&nbsp;But, that isn</span>=
&#8217;<span lang=3D"EN-US">t necessarily how IETF has been using the term
</span>&#8220;<span lang=3D"EN-US">aggregate</span>&#8221;<span lang=3D"EN-=
US">. &nbsp;</span>&#8220;<span lang=3D"EN-US">Behavior Aggregate</span>&#8=
221;<span lang=3D"EN-US"> (as defined in IETF) doesn</span>&#8217;<span lan=
g=3D"EN-US">t mean aggregating behaviors. The same goes for
</span>&#8220;<span lang=3D"EN-US">Treatment Aggregate</span>&#8221;<span l=
ang=3D"EN-US">. Behavior Aggregate (the way we read/interpret it) is an agg=
regate with a specific behavior.&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">[Jie] I just checked t=
he definition of the &#8220;aggregate&#8221; related terms in the RFCs:<o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal" style=3D"margin-left:4.8pt;text-indent:10.5pt"><span=
 lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,s=
ans-serif;color:#1F497D">Behavior Aggregate (defined in RFC 2474): a collec=
tion of packets with the same codepoint crossing a
 link in a particular direction.&#8221;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:4.8pt;text-indent:10.5pt"><span=
 lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,s=
ans-serif;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:4.8pt;text-indent:10.5pt"><span=
 lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,s=
ans-serif;color:#1F497D">Traffic Aggregate (defined in RFC 3086): a collect=
ion of packets with a codepoint that maps to the same
 PHB, usually in a DS domain or some subset of a DS domain.<o:p></o:p></spa=
n></p>
<p class=3D"MsoNormal" style=3D"margin-left:4.8pt;text-indent:10.5pt"><span=
 lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,s=
ans-serif;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:4.8pt;text-indent:10.5pt"><span=
 lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,s=
ans-serif;color:#1F497D">Treatment Aggregate (defined in RFC 5127): This te=
rm is defined as the aggregate of Diffserv service
 classes.&nbsp; A treatment aggregate is concerned only with the forwarding=
 treatment of the aggregated traffic, &nbsp;which may be marked with multip=
le DSCPs.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">My reading of these de=
finitions is that &#8220;aggregate&#8221; here means either aggregated pack=
ets or aggregated service classes which are treated in the same
 way on a particular node or link.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">While what we want to =
describe with the new term IMO is &#8220;a group of network resources alloc=
ated on a set of network nodes and links&#8221;. Such group
 of resources can be provisioned in different places of the network and are=
 organized together to provide a specific network-level behavior.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Thus the key informati=
on to be delivered with the new term is &#8220;a group of organized resourc=
es in the network&#8221;, rather than &#8220;aggregated behavior at
 a particular point&#8221;.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Best regards,<o:p></o:=
p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Jie<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-top:5.0pt;margin-right:0cm;margin-=
bottom:5.0pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-GB">So
</span>&#8220;<span lang=3D"EN-GB">slice aggregate</span>&#8221; <span lang=
=3D"EN-GB">would be an aggregation of slices. Your use in
</span><span lang=3D"EN-US">I-D.draft-bestbar-teas-ns-packet is, therefore,=
 confusing. If the slices are *<b>not</b>* separated out into different flo=
ws (or traffic streams) then, yes, you are aggregating slices. But if the s=
lices are separated out, as you describe,
 then what you have is </span>&#8220;<span lang=3D"EN-US">IETF network slic=
e traffic stream aggregation</span>&#8221;<span lang=3D"EN-US">.</span><spa=
n lang=3D"EN-GB"><o:p></o:p></span></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">[VPB]&nbsp;Yes. The definition =
of the slice aggregate (as defined in draft-bestbar-teas-ns-packet) does st=
ate that the&nbsp;slice aggregate&nbsp;comprises of one or more IETF networ=
k slice traffic streams.&nbsp; We could have chosen a longer
 descriptive name, but opted to keep it short.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&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-top:5.0pt;margin-right:0cm;margin-=
bottom:5.0pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&nbsp;</span><span lang=3D"EN-GB"><o:p></o:p>=
</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">&#8220;<span lang=3D"EN-US">Network resource aggregate</span>&#822=
1;<span lang=3D"EN-US"> would imply that resources have been collected toge=
ther to be used as a single entity.
</span><span lang=3D"EN-GB"><o:p></o:p></span></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">[VPB]&nbsp;Not necessarily. &qu=
ot;Network Resource Aggregate&quot; isn't meant to imply &quot;aggregating =
network resources&quot;. The intent behind the&nbsp;proposal is to say that=
 it is an aggregate that has specific network resources.&nbsp;<o:p></o:p></=
span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">You might do that, for example, with a set of=
 parallel links that can be aggregated (or bundled) and treated as a single=
 link.</span><span lang=3D"EN-GB"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&nbsp;</span><span lang=3D"EN-GB"><o:p></o:p>=
</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-GB">I don</span>&#8217;<span lang=3D"EN-GB">t thi=
nk we are aggregating resources in this case. We are grouping, profiling, p=
artitioning, collecting, or even filtering.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-GB">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-GB">Adrian<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-GB">&nbsp;<o:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><b><span lang=3D"EN-US">From:</span></b><span lang=3D"EN-US"> Tare=
k Saad &lt;<a href=3D"mailto:tsaad.net@gmail.com" target=3D"_blank">tsaad.n=
et@gmail.com</a>&gt;
<br>
<b>Sent:</b> 12 August 2021 15:41<br>
<b>To:</b> <a href=3D"mailto:adrian@olddog.co.uk" target=3D"_blank">adrian@=
olddog.co.uk</a>; 'Kiran Makhijani' &lt;<a href=3D"mailto:kiran.ietf@gmail.=
com" target=3D"_blank">kiran.ietf@gmail.com</a>&gt;; 'John E Drake' &lt;jdr=
ake=3D<a href=3D"mailto:40juniper.net@dmarc.ietf.org" target=3D"_blank">40j=
uniper.net@dmarc.ietf.org</a>&gt;;
 'Dongjie (Jimmy)' &lt;<a href=3D"mailto:jie.dong@huawei.com" target=3D"_bl=
ank">jie.dong@huawei.com</a>&gt;; 'Lizhenbin' &lt;<a href=3D"mailto:lizhenb=
in@huawei.com" target=3D"_blank">lizhenbin@huawei.com</a>&gt;;
<a href=3D"mailto:teas@ietf.org" target=3D"_blank">teas@ietf.org</a><br>
<b>Subject:</b> Re: [Teas] New term for the underlay construct used for sli=
ce realization</span><span lang=3D"EN-GB"><o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-GB">&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 lang=3D"EN-US">Hi Adrian/all,</span><span lang=3D"EN-GB"><o:=
p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&nbsp;</span><span lang=3D"EN-GB"><o:p></o:p>=
</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">As described in I-D.ietf-teas-ietf-network-sl=
ice-definition, an IETF Network Slice service may include multiple connecti=
ons that associate sets of endpoints -
 each having a set of SLOs/SLEs.</span><span lang=3D"EN-GB"><o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">In I-D.draft-bestbar-teas-ns-packet, we defin=
ed a Slice Aggregate as a construct that comprises of one or more IETF netw=
ork slice traffic streams that share the
 same set of SLOs/SLEs.</span><span lang=3D"EN-GB"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">The Slice Aggregate construct allows aggregat=
ing streams from multiple IETF Network Slice connections that share common =
SLOs/SLEs so that the provider network
 can offer the same aggregate treatment to them. The Slice Aggregate resour=
ces are instantiated on specific network elements as dictated by the Slice =
Aggregate topology.</span><span lang=3D"EN-GB"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&nbsp;</span><span lang=3D"EN-GB"><o:p></o:p>=
</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">Since the scope of I-D.draft-bestbar-teas-ns-=
packet was the realization of IETF Network Slice service in a provider netw=
ork, we had constrained the aggregate
 construct to slices.</span><span lang=3D"EN-GB"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&nbsp;</span><span lang=3D"EN-GB"><o:p></o:p>=
</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">We understand that the aggregate construct ca=
n be generalized to support other services. Let us offer another option to =
consider for representing the generic
 construct: </span>&#8220;<span lang=3D"EN-US">Network Resource Aggregate</=
span>&#8221;<span lang=3D"EN-US">. There are multiple IETF documents that u=
se the term Aggregate whenever grouping multiple service classes (Behavior =
Aggregate, Treatment Aggregate, Traffic Aggregate,
 etc.) - refer to rfc5127 and rfc2474 for more examples.</span><span lang=
=3D"EN-GB"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&nbsp;</span><span lang=3D"EN-GB"><o:p></o:p>=
</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">Regards,</span><span lang=3D"EN-GB"><o:p></o:=
p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">Tarek</span><span lang=3D"EN-GB"><o:p></o:p><=
/span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&nbsp;</span><span lang=3D"EN-GB"><o:p></o:p>=
</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&nbsp;</span><span lang=3D"EN-GB"><o:p></o:p>=
</span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;margin-bottom:12.0p=
t;margin-left:36.0pt">
<b><span lang=3D"EN-US" style=3D"color:black">From: </span></b><span lang=
=3D"EN-US" style=3D"color:black">Teas &lt;</span><span lang=3D"EN-US"><a hr=
ef=3D"mailto:teas-bounces@ietf.org" target=3D"_blank">teas-bounces@ietf.org=
</a><span style=3D"color:black">&gt; on behalf of Adrian
 Farrel &lt;</span><a href=3D"mailto:adrian@olddog.co.uk" target=3D"_blank"=
>adrian@olddog.co.uk</a><span style=3D"color:black">&gt;<br>
<b>Date: </b>Wednesday, August 11, 2021 at 3:38 PM<br>
<b>To: </b>'Kiran Makhijani' &lt;</span><a href=3D"mailto:kiran.ietf@gmail.=
com" target=3D"_blank">kiran.ietf@gmail.com</a><span style=3D"color:black">=
&gt;, 'John E Drake' &lt;</span><a href=3D"mailto:jdrake=3D40juniper.net@dm=
arc.ietf.org" target=3D"_blank">jdrake=3D40juniper.net@dmarc.ietf.org</a><s=
pan style=3D"color:black">&gt;,
 'Dongjie (Jimmy)' &lt;</span><a href=3D"mailto:jie.dong@huawei.com" target=
=3D"_blank">jie.dong@huawei.com</a><span style=3D"color:black">&gt;, 'Lizhe=
nbin' &lt;</span><a href=3D"mailto:lizhenbin@huawei.com" target=3D"_blank">=
lizhenbin@huawei.com</a><span style=3D"color:black">&gt;,
</span><a href=3D"mailto:teas@ietf.org" target=3D"_blank">teas@ietf.org</a>=
<span style=3D"color:black"> &lt;</span><a href=3D"mailto:teas@ietf.org" ta=
rget=3D"_blank">teas@ietf.org</a><span style=3D"color:black">&gt;<br>
<b>Subject: </b>Re: [Teas] New term for the underlay construct used for sli=
ce realization</span></span><span lang=3D"EN-GB"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:36.0pt">
<span lang=3D"EN-US">I wonder whether we can pick this apart and put it bac=
k together in a way<br>
that makes sense.<br>
<br>
The customer's view of all this is an &quot;IETF network slice service&quot=
;. I think<br>
(hope) we are all agreed on this. The customer may ask (in shorthand) for a=
<br>
&quot;network slice&quot;, but:<br>
- they are talking about IETF technology, so they asking for an &quot;IETF<=
br>
network slice&quot;<br>
- they actually want behavioural characteristics and have no right to tell<=
br>
the operator<br>
&nbsp; how to manage the network, so they are asking for an &quot;IETF netw=
ork slice<br>
service.&quot;<br>
<br>
The operator has a bigger set of things to worry about. <br>
<br>
1. At the top of the operator's view is the &quot;IETF network slice servic=
e&quot; as<br>
&nbsp;&nbsp;&nbsp; requested by the customer. We have this defined already,=
 so nothing more<br>
&nbsp;&nbsp;&nbsp; to say.<br>
<br>
2. The operator maps the request for a slice service into the &quot;IETF ne=
twork<br>
&nbsp;&nbsp;&nbsp; slice&quot; which is the expression of the service in te=
rms of network<br>
connectivity<br>
&nbsp;&nbsp;&nbsp; in the context of the operator's network. The relationsh=
ip here is like<br>
the<br>
&nbsp;&nbsp;&nbsp; relationship between the L3SM and L3NM.<br>
<br>
3. At the bottom of their view is an underlying network. The technology of<=
br>
this<br>
&nbsp;&nbsp; network depends, of course, on the operator's offering, but th=
is is the<br>
network<br>
&nbsp;&nbsp; technology being sliced. It may be an IP network, and MPLS net=
work, an<br>
OTN,<br>
&nbsp;&nbsp; or whatever. I would call this the &quot;Underlay Network.&quo=
t; This network may,<br>
in<br>
&nbsp;&nbsp; turn, be built upon an underlay network of the same or a diffe=
rent<br>
technology,<br>
&nbsp;&nbsp; and it may be facilitated through network slicing - but this n=
eed not<br>
concern<br>
&nbsp;&nbsp; us here. <br>
<br>
4. That leaves the glue in the middle: the bit that enables the scaling and=
<br>
maps<br>
&nbsp;&nbsp; the network slice to the network. And I think it is this bit t=
hat is<br>
causing the<br>
&nbsp;&nbsp; most debate about terminology. There are some points to consid=
er:<br>
<br>
&nbsp;&nbsp; a. The term &quot;network resources&quot; applies to the bandw=
idth, queues,<br>
buffers,<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; etc. available on the links and nodes =
in the network. That may be <br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; extended to refer to whole links and n=
odes.<br>
<br>
&nbsp;&nbsp; b. The number of IETF network slice services is potentially la=
rge and the<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; operator needs a mechanism to scale th=
e mapping of services to <br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; network resources.<br>
<br>
&nbsp;&nbsp; c. The IETF network slices may be grouped for identical treatm=
ent to<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; achieve scaling, where the grouping co=
llects IETF network slices with<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; similar SLAs.<br>
<br>
&nbsp;&nbsp; d. It may be that different traffic flows within a single IETF=
 network<br>
slice<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; have different characteristics. =
In this case, it may be beneficial<br>
to group<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; together some of the traffic flo=
ws from different slices.<br>
<br>
&nbsp;&nbsp; e. The grouped slices/flows are enabled in the network using n=
etwork<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; resources assigned for that purp=
ose. The assignment may be anything<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from a fully-fledged virtual net=
work (such as in ACTN or VPN&#43;),<br>
through<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; network reserved resources (such=
 as in MPLS-TE), and centrally<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; accounted resources (such as SDN=
 or possible SR), to statistically<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; shared resources.<br>
<br>
There seems to be various points for and against 4d. But, it would appear<b=
r>
that this is an implementation or deployment issue that doesn't change what=
<br>
the protocols need to do. So we should probably allow it architecturally, o=
r<br>
at least, not disallow it.<br>
<br>
Of course, as Kiran points out, 4c/d/e may be a pass-through. That is, it i=
s<br>
not necessary to implement such groupings either because there are only a<b=
r>
few slices (which has been the view of some operators) or because the<br>
network systems can handle the number of slices. And it is in the nature of=
<br>
architectures of this sort that all functions can be nulled out without los=
s<br>
of generality, and we have to recall that the internals of provisioning<br>
systems may appear as functional blocks in our architectures, but we don't<=
br>
compel implementations to adhere to that type of architecture. So I don't<b=
r>
think we have to worry on that account.<br>
<br>
And that brings the question of how we name the resources that are gathered=
<br>
in 4e. <br>
<br>
I can't decide whether it is helpful to spend time saying why I don't like<=
br>
each of the proposed terms. I certainly have things I don't like about (for=
<br>
example) &quot;slice aggregate&quot; (because of 4d, which means it is real=
ly a &quot;slice<br>
sub-flow aggregate&quot;), and I am not a fan of &quot;VTN&quot; (because o=
f &quot;transport&quot;<br>
and maybe it is not really a network). But maybe it is better for me to say=
<br>
what I think we should call things? I think we have...<br>
<br>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IETF network slice service (customer =
view)<br>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IETF network slice (operator view)<br=
>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Resource partition (delivery mechanis=
m)<br>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Underlay network (network used to sup=
port the slice)<br>
<br>
Why &quot;resource partition&quot;? Well it is a collection of &quot;nodes,=
 links, and<br>
network resources that are marked within the network for use by a set of<br=
>
network slice traffic flows&quot;.<br>
It is possible that the word &quot;partition&quot; is too strong because it=
 may imply<br>
to some people that resources in a partition cannot be shared, but I don't<=
br>
feel that.<br>
Softer words than &quot;partition&quot; would be &quot;group&quot;, &quot;b=
undle&quot;, &quot;pool&quot;, and I<br>
could live with any of them.<br>
<br>
Best,<br>
Adrian<br>
<br>
<br>
-----Original Message-----<br>
From: Teas &lt;<a href=3D"mailto:teas-bounces@ietf.org" target=3D"_blank">t=
eas-bounces@ietf.org</a>&gt; On Behalf Of Kiran Makhijani<br>
Sent: 11 August 2021 16:00<br>
To: John E Drake &lt;<a href=3D"mailto:jdrake=3D40juniper.net@dmarc.ietf.or=
g" target=3D"_blank">jdrake=3D40juniper.net@dmarc.ietf.org</a>&gt;; Dongjie=
 (Jimmy)<br>
&lt;<a href=3D"mailto:jie.dong@huawei.com" target=3D"_blank">jie.dong@huawe=
i.com</a>&gt;; Lizhenbin &lt;<a href=3D"mailto:lizhenbin@huawei.com" target=
=3D"_blank">lizhenbin@huawei.com</a>&gt;;
<a href=3D"mailto:teas@ietf.org" target=3D"_blank">teas@ietf.org</a><br>
Subject: Re: [Teas] New term for the underlay construct used for slice<br>
realization<br>
<br>
Hi John, (and all),<br>
<br>
Two very basic clarification questions:<br>
1. How do we differentiate between&nbsp; the slice-segments that are <br>
resource-aware vs those that are not? I had assumed that since a slice <br>
has an SLO, it will need network resource allocations in some form.<br>
<br>
2. Is it ok to assume that the customer view of slice is an 'IETF <br>
network slice service' and the 'IETF slice realization' of that service <br=
>
in a provider network is raises the question of underlay and overlay <br>
constructs. Am I right?<br>
(a) if so, then we are acknowledging&nbsp; the presence of another layer of=
 <br>
abstraction (for realization). It could be underlay/overlay or <br>
aggregate/??. Then the term 'slice aggregate' is better and my <br>
preference, it is easier to see that different slice-services are <br>
aggregated into a single construct&nbsp; in a provider network. Use of <br>
underlay/overlay are confusing.<br>
(b) for a leaner provisioning, I would also prefer to see it documented <br=
>
that the aggregate is optional and it should be possible to directly map <b=
r>
a slice-service to physical or real resources in the network. <br>
specifically useful when a single domain is carving out slices for <br>
different purposes.<br>
<br>
Thanks<br>
Kiran<br>
<br>
<br>
------ Original Message ------<br>
From: &quot;John E Drake&quot; &lt;<a href=3D"mailto:jdrake=3D40juniper.net=
@dmarc.ietf.org" target=3D"_blank">jdrake=3D40juniper.net@dmarc.ietf.org</a=
>&gt;<br>
To: &quot;Dongjie (Jimmy)&quot; &lt;<a href=3D"mailto:jie.dong@huawei.com" =
target=3D"_blank">jie.dong@huawei.com</a>&gt;; &quot;Lizhenbin&quot;
<br>
&lt;<a href=3D"mailto:lizhenbin@huawei.com" target=3D"_blank">lizhenbin@hua=
wei.com</a>&gt;; &quot;<a href=3D"mailto:teas@ietf.org" target=3D"_blank">t=
eas@ietf.org</a>&quot; &lt;<a href=3D"mailto:teas@ietf.org" target=3D"_blan=
k">teas@ietf.org</a>&gt;<br>
Sent: 8/11/2021 5:38:05 AM<br>
Subject: Re: [Teas] New term for the underlay construct used for slice <br>
realization<br>
<br>
&gt;Jimmy,<br>
&gt;<br>
&gt;Snipped, comments inline.<br>
&gt;<br>
&gt;Yours Irrespectively,<br>
&gt;<br>
&gt;John<br>
&gt;<br>
&gt;<br>
&gt;Juniper Business Use Only<br>
&gt;<br>
&gt;&gt;&nbsp; -----Original Message-----<br>
&gt;&gt;&nbsp; From: Dongjie (Jimmy) &lt;<a href=3D"mailto:jie.dong@huawei.=
com" target=3D"_blank">jie.dong@huawei.com</a>&gt;<br>
&gt;&gt;&nbsp; Sent: Tuesday, August 10, 2021 11:03 PM<br>
&gt;&gt;&nbsp; To: John E Drake &lt;<a href=3D"mailto:jdrake@juniper.net" t=
arget=3D"_blank">jdrake@juniper.net</a>&gt;; Lizhenbin &lt;<a href=3D"mailt=
o:lizhenbin@huawei.com" target=3D"_blank">lizhenbin@huawei.com</a>&gt;;<br>
&gt;&gt;<a href=3D"mailto:teas@ietf.org" target=3D"_blank">teas@ietf.org</a=
><br>
&gt;&gt;&nbsp; Subject: RE: New term for the underlay construct used for sl=
ice<br>
realization<br>
&gt;&gt;<br>
&gt;&gt;&nbsp; [External Email. Be cautious of content]<br>
&gt;&gt;<br>
&gt;underlay construct for network slice realization bound to<br>
&gt;&gt;&nbsp; &gt; &gt; network slice services? That is, is the underlay c=
onstruct only for<br>
&gt;&gt;&nbsp; &gt; &gt; use in network slicing, or should it be generalize=
d for more<br>
possible uses?<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; [JD] Absolutely yes<br>
&gt;&gt;<br>
&gt;&gt;&nbsp; [Jie] I guess you mean &quot;Yes&quot; to the latter case, w=
hich is &quot;it should be<br>
generalized<br>
&gt;&gt;&nbsp; for more possible uses&quot;, is my understanding correct?<b=
r>
&gt;<br>
&gt;[JD]&nbsp; Yes to the latter<br>
&gt;<br>
&gt;&gt;<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; 2.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; If the answer to =
question 1 is YES, should it reflect the<br>
following<br>
&gt;&gt;&nbsp; &gt; &gt; characteristics?<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; a.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; It is about the u=
nderlay<br>
&gt;&gt;&nbsp; &gt; &gt; b.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; It is about the p=
artitioned resources used to deliver the<br>
network slice<br>
&gt;&gt;&nbsp; &gt; &gt; services<br>
&gt;&gt;&nbsp; &gt; &gt; c.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; It allows the 1:1=
, N:1, and 1:N mapping models between the<br>
network<br>
&gt;&gt;&nbsp; &gt; slice<br>
&gt;&gt;&nbsp; &gt; &gt; services and the underlay construct. The 1:1 and N=
:1 mapping may be<br>
&gt;&gt;&nbsp; &gt; &gt; straightforward. Does it also make sense to divide=
 the elements or<br>
&gt;&gt;&nbsp; &gt; &gt; traffic flows in a single network slice service to=
 carry them in<br>
&gt;&gt;&nbsp; &gt; &gt; different<br>
&gt;&gt;&nbsp; &gt; underlay constructs?<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; [JD]&nbsp; Yes to all of the above.&nbsp; Please see:<b=
r>
&gt;&gt;&nbsp; &gt; <a href=3D"https://urldefense.com/v3/__https:/datatrack=
er.ietf.org/doc/html/draf" target=3D"_blank">
https://urldefense.com/v3/__https://datatracker.ietf.org/doc/html/draf</a><=
br>
&gt;&gt;&nbsp; &gt; t-drake-bess-enhanced-vpn-06__;!!NEt6yMaO-<br>
&gt;&gt;&nbsp; gk!TCiJHCZCwFgwpuFoujxVlZ4r9<br>
&gt;&gt;&nbsp; &gt; F6mLpE4nJ-9zpqkY-kls-ROxL4C2_xNaR2ImI4$<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; Lastly, here are some candidates of the &quot;new =
term&quot;:<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; Option 1: The network slice service is called &quo=
t;overlay slice&quot;, then<br>
&gt;&gt;&nbsp; &gt; &gt; the underlay construct is called &quot;underlay sl=
ice&quot;.<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; Option 2: The network slice service is called &quo=
t;service slice&quot;, then<br>
&gt;&gt;&nbsp; &gt; &gt; the underlay construct is called &quot;resource sl=
ice&quot;.<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; [JD]&nbsp; I don't think we need another term for what =
we are already<br>
&gt;&gt;&nbsp; &gt; calling an 'IETF Network Slice Service'.&nbsp; Adrian a=
nd I are considering<br>
&gt;&gt;&nbsp; &gt; the term 'resource partition' to describe the partition=
ing of underlay<br>
&gt;&gt;&nbsp; &gt; network resources in support of various overlay service=
s such as IETF<br>
Network<br>
&gt;&gt;&nbsp; Slice Services.<br>
&gt;&gt;&nbsp; &gt; This is congruent with the ideas expressed in:<br>
&gt;&gt;&nbsp; &gt; <a href=3D"https://urldefense.com/v3/__https:/datatrack=
er.ietf.org/doc/html/draf" target=3D"_blank">
https://urldefense.com/v3/__https://datatracker.ietf.org/doc/html/draf</a><=
br>
&gt;&gt;&nbsp; &gt; t-ietf-spring-resource-aware-segmen__;!!NEt6yMaO-<br>
&gt;&gt;&nbsp; gk!TCiJHCZCwFgwpuFouj<br>
&gt;&gt;&nbsp; &gt; xVlZ4r9F6mLpE4nJ-9zpqkY-kls-ROxL4C2_xNxEfwaXg$<br>
&gt;&gt;&nbsp; &gt; ts-03.&nbsp; What this allows one to build is an 'parti=
tioned underlay<br>
&gt;&gt;&nbsp; &gt; network topology'.<br>
&gt;&gt;<br>
&gt;&gt;&nbsp; [Jie] Agree that here we are talking about the term for the =
underlay<br>
construct.<br>
&gt;&gt;&nbsp; &quot;Resource partition&quot; captures one of its key chara=
cteristics, while IMO<br>
another<br>
&gt;&gt;&nbsp; thing the term needs to reflect is that the resource partiti=
on is needed<br>
on a<br>
&gt;&gt;&nbsp; subset of the links and nodes (rather than on a single node =
or link) in<br>
the physical<br>
&gt;&gt;&nbsp; network, which together builds a logical network topology.<b=
r>
&gt;<br>
&gt;[JD]&nbsp; In my initial email, above, I was proposing 'partitioned und=
erlay<br>
network topology'<br>
&gt;<br>
&gt;&gt;<br>
&gt;&gt;&nbsp; Best regards,<br>
&gt;&gt;&nbsp; Jie<br>
&gt;&gt;<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; Your opinion about these candidates are much appre=
ciated. You may<br>
&gt;&gt;&nbsp; &gt; &gt; also propose other new term if it complies with th=
e above two<br>
points.<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; [JD]&nbsp; I think you have exceeded your remit.<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; Best Regards,<br>
&gt;&gt;&nbsp; &gt; &gt; Robin<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; _______________________________________________<br=
>
&gt;&gt;&nbsp; &gt; &gt; Teas mailing list<br>
&gt;&gt;&nbsp; &gt; &gt; <a href=3D"mailto:Teas@ietf.org" target=3D"_blank"=
>Teas@ietf.org</a><br>
&gt;&gt;&nbsp; &gt; &gt; <a href=3D"https://urldefense.com/v3/__https:/www.=
ietf.org/mailman/listinfo/te" target=3D"_blank">
https://urldefense.com/v3/__https://www.ietf.org/mailman/listinfo/te</a><br=
>
&gt;&gt;&nbsp; &gt; &gt; as<br>
&gt;&gt;&nbsp; &gt; &gt; __;!!N<br>
&gt;&gt;&nbsp; &gt; &gt; Et6yMaO-gk!Q0ycOf0ELxT6mG1GbnO4LSL-Q99J4uu7jfdUtBE=
CaI-<br>
&gt;&gt;&nbsp; &gt; &gt; O08HqD31TGJciNjuxL2A$<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; _______________________________________________<br>
&gt;&gt;&nbsp; &gt; Teas mailing list<br>
&gt;&gt;&nbsp; &gt; <a href=3D"mailto:Teas@ietf.org" target=3D"_blank">Teas=
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https://urldefense.com/v3/__https://www.ietf.org/mailman/listinfo/teas</a><=
br>
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qkY-kls-<br>
&gt;&gt;&nbsp; ROxL4C2<br>
&gt;&gt;&nbsp; &gt; _xNDCrPaNQ$<br>
&gt;<br>
&gt;_______________________________________________<br>
&gt;Teas mailing list<br>
&gt;<a href=3D"mailto:Teas@ietf.org" target=3D"_blank">Teas@ietf.org</a><br=
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From: Shunsuke Homma <shunsuke.homma.ietf@gmail.com>
Date: Tue, 17 Aug 2021 02:02:29 +0900
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To: "Joel M. Halpern" <jmh@joelhalpern.com>
Cc: "spring@ietf.org" <spring@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/iM3B_CxJAD7MEEodfj7HoW39okU>
Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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--00000000000042c00b05c9b02b09
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Hi Joel and WG,

> Should the working group standardize one data plane behavior for
> compressing SRv6 information?

Yes, we should pick up and standardize a single solution for SRv6
compression. Interoperability is one of important factors for operators.
Multi-options may prevent interoperability.

Regards,

Shunsuke

On Thu, Aug 5, 2021 at 3:52 AM Joel M. Halpern <jmh@joelhalpern.com> wrote:

> The SPRING Working Group Chairs thank the design team for their efforts
> on the requirements and analysis drafts.  The question of how the
> working group wants to progress that part of the work will be the topic
> for a separate email a bit later.
>
> Right now, we are hearing the discussion about how many solutions, and
> the perspectives being expressed.  While the topic was well-raised, the
> discussion to date has not been structured in a way that makes clear to
> everyone what the purpose is.  In particular, the chairs have decided to
> re-ask the question.  We ask that even those who have responded in the
> discussion respond to this thread.  Preferably with both what their
> opinion is and an explanation of why.
>
> The question we are asking you to comment on is:
>
> Should the working group standardize one data plane behavior for
> compressing SRv6 information?
>
> Please speak up.  We are looking to collect responses until close of
> business PDT on 20-August-2021.
>
> Thank you,
> Joel, Jim, and Bruno
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

--00000000000042c00b05c9b02b09
Content-Type: text/html; charset="UTF-8"
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<div dir=3D"ltr"><div dir=3D"ltr">Hi Joel and WG,<div><br></div><div><div d=
ir=3D"ltr" style=3D"color:rgb(80,0,80)">&gt; Should the working group stand=
ardize one data plane behavior for</div><div dir=3D"ltr" style=3D"color:rgb=
(80,0,80)">&gt;=C2=A0<span class=3D"gmail-il">compressing</span>=C2=A0<span=
 class=3D"gmail-il">SRv6</span>=C2=A0information?</div></div><div dir=3D"lt=
r" style=3D"color:rgb(80,0,80)"><br></div><div>Yes, we should pick up and s=
tandardize a single solution for SRv6 compression. Interoperability is one =
of important factors for operators. Multi-options may prevent interoperabil=
ity.<br></div><div><br></div><div>Regards,</div><div><br></div></div><div>S=
hunsuke</div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail=
_attr">On Thu, Aug 5, 2021 at 3:52 AM Joel M. Halpern &lt;<a href=3D"mailto=
:jmh@joelhalpern.com">jmh@joelhalpern.com</a>&gt; wrote:<br></div><blockquo=
te class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px =
solid rgb(204,204,204);padding-left:1ex">The SPRING Working Group Chairs th=
ank the design team for their efforts <br>
on the requirements and analysis drafts.=C2=A0 The question of how the <br>
working group wants to progress that part of the work will be the topic <br=
>
for a separate email a bit later.<br>
<br>
Right now, we are hearing the discussion about how many solutions, and <br>
the perspectives being expressed.=C2=A0 While the topic was well-raised, th=
e <br>
discussion to date has not been structured in a way that makes clear to <br=
>
everyone what the purpose is.=C2=A0 In particular, the chairs have decided =
to <br>
re-ask the question.=C2=A0 We ask that even those who have responded in the=
 <br>
discussion respond to this thread.=C2=A0 Preferably with both what their <b=
r>
opinion is and an explanation of why.<br>
<br>
The question we are asking you to comment on is:<br>
<br>
Should the working group standardize one data plane behavior for <br>
compressing SRv6 information?<br>
<br>
Please speak up.=C2=A0 We are looking to collect responses until close of <=
br>
business PDT on 20-August-2021.<br>
<br>
Thank you,<br>
Joel, Jim, and Bruno<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></div>

--00000000000042c00b05c9b02b09--


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From: Lizhenbin <lizhenbin@huawei.com>
To: =?utf-8?B?6b6a56uL6Imz?= <gongliyan@chinamobile.com>, draft-ali-teas-sprin <draft-ali-teas-spring-ns-building-blocks@ietf.org>, draft-filsfils-sprin <draft-filsfils-spring-srv6-stateless-slice-id@ietf.org>, draft-decraene-mpls- <draft-decraene-mpls-slid-encoded-entropy-label-id@ietf.org>
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Thread-Topic: Re:Re: [Teas] New term for the underlay construct used for slicerealization
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From: James Guichard <james.n.guichard@futurewei.com>
To: "Joel M. Halpern" <jmh@joelhalpern.com>, "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [spring] Progressing Standardizing SR over IPv6 compression
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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Dear WG:

If you have not already done so please do provide your comments to the mail=
ing list as soon as possible.=20

Thanks!

Jim, Joel & Bruno

-----Original Message-----
From: spring <spring-bounces@ietf.org> On Behalf Of Joel M. Halpern
Sent: Wednesday, August 4, 2021 2:52 PM
To: spring@ietf.org
Subject: [spring] Progressing Standardizing SR over IPv6 compression

The SPRING Working Group Chairs thank the design team for their efforts on =
the requirements and analysis drafts.  The question of how the working grou=
p wants to progress that part of the work will be the topic for a separate =
email a bit later.

Right now, we are hearing the discussion about how many solutions, and the =
perspectives being expressed.  While the topic was well-raised, the discuss=
ion to date has not been structured in a way that makes clear to everyone w=
hat the purpose is.  In particular, the chairs have decided to re-ask the q=
uestion.  We ask that even those who have responded in the discussion respo=
nd to this thread.  Preferably with both what their opinion is and an expla=
nation of why.

The question we are asking you to comment on is:

Should the working group standardize one data plane behavior for compressin=
g SRv6 information?

Please speak up.  We are looking to collect responses until close of busine=
ss PDT on 20-August-2021.

Thank you,
Joel, Jim, and Bruno

_______________________________________________
spring mailing list
spring@ietf.org
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From: Dhruv Dhody <dhruv.ietf@gmail.com>
Date: Wed, 18 Aug 2021 14:58:12 +0530
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To: James Guichard <james.n.guichard@futurewei.com>
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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Hi Chairs, WG,

Mostly I have been in favor of providing multiple tools for the operator's
toolbox in the control plane. But in this instance, the cost of multiple
data plane behaviors for compressing SRv6 would be very high and finally,
the interoperability would suffer. In the long run, it would be best for
the SRv6 technology, industry, and the WG, if the decision is made now by
the WG to select one technique.

Thanks!
Dhruv

On Wed, Aug 18, 2021 at 1:58 AM James Guichard <
james.n.guichard@futurewei.com> wrote:

> Dear WG:
>
> If you have not already done so please do provide your comments to the
> mailing list as soon as possible.
>
> Thanks!
>
> Jim, Joel & Bruno
>
> -----Original Message-----
> From: spring <spring-bounces@ietf.org> On Behalf Of Joel M. Halpern
> Sent: Wednesday, August 4, 2021 2:52 PM
> To: spring@ietf.org
> Subject: [spring] Progressing Standardizing SR over IPv6 compression
>
> The SPRING Working Group Chairs thank the design team for their efforts o=
n
> the requirements and analysis drafts.  The question of how the working
> group wants to progress that part of the work will be the topic for a
> separate email a bit later.
>
> Right now, we are hearing the discussion about how many solutions, and th=
e
> perspectives being expressed.  While the topic was well-raised, the
> discussion to date has not been structured in a way that makes clear to
> everyone what the purpose is.  In particular, the chairs have decided to
> re-ask the question.  We ask that even those who have responded in the
> discussion respond to this thread.  Preferably with both what their opini=
on
> is and an explanation of why.
>
> The question we are asking you to comment on is:
>
> Should the working group standardize one data plane behavior for
> compressing SRv6 information?
>
> Please speak up.  We are looking to collect responses until close of
> business PDT on 20-August-2021.
>
> Thank you,
> Joel, Jim, and Bruno
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
>
> https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fwww.i=
etf.org%2Fmailman%2Flistinfo%2Fspring&amp;data=3D04%7C01%7Cjames.n.guichard=
%40futurewei.com%7C250776c6aff74c568c8a08d957790ab9%7C0fee8ff2a3b240189c753=
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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:trebuche=
t ms,sans-serif;font-size:small;color:#073763">Hi Chairs, WG,<br><br>Mostly=
 I have been in favor of providing multiple tools for the operator&#39;s to=
olbox in the control plane. But in this instance, the cost of multiple data=
 plane behaviors for compressing SRv6 would be very high and finally, the i=
nteroperability would suffer. In the long run, it would be best for the SRv=
6 technology, industry, and the WG, if the decision is made now by the WG t=
o select one technique. =C2=A0 <br><br>Thanks! <br>Dhruv<br></div></div><br=
><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Wed, A=
ug 18, 2021 at 1:58 AM James Guichard &lt;<a href=3D"mailto:james.n.guichar=
d@futurewei.com">james.n.guichard@futurewei.com</a>&gt; wrote:<br></div><bl=
ockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-lef=
t:1px solid rgb(204,204,204);padding-left:1ex">Dear WG:<br>
<br>
If you have not already done so please do provide your comments to the mail=
ing list as soon as possible. <br>
<br>
Thanks!<br>
<br>
Jim, Joel &amp; Bruno<br>
<br>
-----Original Message-----<br>
From: spring &lt;<a href=3D"mailto:spring-bounces@ietf.org" target=3D"_blan=
k">spring-bounces@ietf.org</a>&gt; On Behalf Of Joel M. Halpern<br>
Sent: Wednesday, August 4, 2021 2:52 PM<br>
To: <a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a=
><br>
Subject: [spring] Progressing Standardizing SR over IPv6 compression<br>
<br>
The SPRING Working Group Chairs thank the design team for their efforts on =
the requirements and analysis drafts.=C2=A0 The question of how the working=
 group wants to progress that part of the work will be the topic for a sepa=
rate email a bit later.<br>
<br>
Right now, we are hearing the discussion about how many solutions, and the =
perspectives being expressed.=C2=A0 While the topic was well-raised, the di=
scussion to date has not been structured in a way that makes clear to every=
one what the purpose is.=C2=A0 In particular, the chairs have decided to re=
-ask the question.=C2=A0 We ask that even those who have responded in the d=
iscussion respond to this thread.=C2=A0 Preferably with both what their opi=
nion is and an explanation of why.<br>
<br>
The question we are asking you to comment on is:<br>
<br>
Should the working group standardize one data plane behavior for compressin=
g SRv6 information?<br>
<br>
Please speak up.=C2=A0 We are looking to collect responses until close of b=
usiness PDT on 20-August-2021.<br>
<br>
Thank you,<br>
Joel, Jim, and Bruno<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://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2=
F%2Fwww.ietf.org%2Fmailman%2Flistinfo%2Fspring&amp;amp;data=3D04%7C01%7Cjam=
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776c6aff74c568c8a08d957790ab9%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C=
637636999654946952%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2lu=
MzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;amp;sdata=3DJyUjJng7gmClXGUsL=
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</blockquote></div>

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Thread-Topic: [spring] Progressing Standardizing SR over IPv6 compression
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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Dears


 we want to have less solutions for sure, we do not want to introduce more c=
omplexities in our network, so please choose one solution.
Apparently, we should standardize CSID.

-----Original Message-----
From: spring <spring-bounces@ietf.org> On Behalf Of James Guichard
Sent: Tuesday, August 17, 2021 10:28 PM
To: Joel M. Halpern <jmh@joelhalpern.com>; spring@ietf.org
Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression

Dear WG:

If you have not already done so please do provide your comments to the maili=
ng list as soon as possible.

Thanks!

Jim, Joel & Bruno

-----Original Message-----
From: spring <spring-bounces@ietf.org> On Behalf Of Joel M. Halpern
Sent: Wednesday, August 4, 2021 2:52 PM
To: spring@ietf.org
Subject: [spring] Progressing Standardizing SR over IPv6 compression

The SPRING Working Group Chairs thank the design team for their efforts on t=
he requirements and analysis drafts.  The question of how the working group=
 wants to progress that part of the work will be the topic for a separate em=
ail a bit later.

Right now, we are hearing the discussion about how many solutions, and the p=
erspectives being expressed.  While the topic was well-raised, the discussio=
n to date has not been structured in a way that makes clear to everyone what=
 the purpose is.  In particular, the chairs have decided to re-ask the quest=
ion.  We ask that even those who have responded in the discussion respond to=
 this thread.  Preferably with both what their opinion is and an explanation=
 of why.

The question we are asking you to comment on is:

Should the working group standardize one data plane behavior for compressing=
 SRv6 information?

Please speak up.  We are looking to collect responses until close of busines=
s PDT on 20-August-2021.

Thank you,
Joel, Jim, and Bruno

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To: "Joel M. Halpern" <jmh@joelhalpern.com>, "spring@ietf.org" <spring@ietf.org>
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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Joel

Yes, I believe the WG should standardize a single data plane solution.

This will enable to the WG and industry to move forward and enable vendors =
to implement a single interoperable solution. It reduces overall solution c=
omplexity and greatly benefits deployments.

Based on the experience of multiple working groups, it is hugely beneficial=
 to have a single data plane solution on which we can focus our efforts.

Thanks

Matthew

From: spring <spring-bounces@ietf.org> on behalf of Joel M. Halpern <jmh@jo=
elhalpern.com>
Date: Wednesday, 4 August 2021 at 19:52
To: spring@ietf.org <spring@ietf.org>
Subject: [spring] Progressing Standardizing SR over IPv6 compression
The SPRING Working Group Chairs thank the design team for their efforts
on the requirements and analysis drafts.  The question of how the
working group wants to progress that part of the work will be the topic
for a separate email a bit later.

Right now, we are hearing the discussion about how many solutions, and
the perspectives being expressed.  While the topic was well-raised, the
discussion to date has not been structured in a way that makes clear to
everyone what the purpose is.  In particular, the chairs have decided to
re-ask the question.  We ask that even those who have responded in the
discussion respond to this thread.  Preferably with both what their
opinion is and an explanation of why.

The question we are asking you to comment on is:

Should the working group standardize one data plane behavior for
compressing SRv6 information?

Please speak up.  We are looking to collect responses until close of
business PDT on 20-August-2021.

Thank you,
Joel, Jim, and Bruno

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

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<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US">Joel<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">Yes, I be=
lieve the WG should standardize a single data plane solution.<o:p></o:p></s=
pan></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">This will=
 enable to the WG and industry to move forward and enable vendors to implem=
ent a single interoperable solution. It reduces overall solution complexity=
 and greatly benefits deployments.<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">Based on =
the experience of multiple working groups, it is hugely beneficial to have =
a single data plane solution on which we can focus our efforts.<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"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US">Matthew <=
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 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">spring &lt;spring-b=
ounces@ietf.org&gt; on behalf of Joel M. Halpern &lt;jmh@joelhalpern.com&gt=
;<br>
<b>Date: </b>Wednesday, 4 August 2021 at 19:52<br>
<b>To: </b>spring@ietf.org &lt;spring@ietf.org&gt;<br>
<b>Subject: </b>[spring] Progressing Standardizing SR over IPv6 compression=
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal">The SPRING Working Group Chairs thank the design tea=
m for their efforts
<br>
on the requirements and analysis drafts.&nbsp; The question of how the <br>
working group wants to progress that part of the work will be the topic <br=
>
for a separate email a bit later.<br>
<br>
Right now, we are hearing the discussion about how many solutions, and <br>
the perspectives being expressed.&nbsp; While the topic was well-raised, th=
e <br>
discussion to date has not been structured in a way that makes clear to <br=
>
everyone what the purpose is.&nbsp; In particular, the chairs have decided =
to <br>
re-ask the question.&nbsp; We ask that even those who have responded in the=
 <br>
discussion respond to this thread.&nbsp; Preferably with both what their <b=
r>
opinion is and an explanation of why.<br>
<br>
The question we are asking you to comment on is:<br>
<br>
Should the working group standardize one data plane behavior for <br>
compressing SRv6 information?<br>
<br>
Please speak up.&nbsp; We are looking to collect responses until close of <=
br>
business PDT on 20-August-2021.<br>
<br>
Thank you,<br>
Joel, Jim, and Bruno<br>
<br>
_______________________________________________<br>
spring mailing list<br>
spring@ietf.org<br>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring">https://www.ietf.o=
rg/mailman/listinfo/spring</a><o:p></o:p></p>
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From nobody Wed Aug 18 18:16:20 2021
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From: "Dongjie (Jimmy)" <jie.dong@huawei.com>
To: James Guichard <james.n.guichard@futurewei.com>, "Joel M. Halpern" <jmh@joelhalpern.com>, "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [spring] Progressing Standardizing SR over IPv6 compression
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Date: Thu, 19 Aug 2021 01:16:06 +0000
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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Dear chairs,=20

I believe the WG should standardize a single data plane solution.=20

I fully agree with Dhruv that the cost of multiple data plane for SRv6 comp=
ression would be unaffordable and the interoperable deployment would suffer=
 from it.=20

Best regards,
Jie

> -----Original Message-----
> From: spring [mailto:spring-bounces@ietf.org] On Behalf Of James Guichard
> Sent: Wednesday, August 18, 2021 4:28 AM
> To: Joel M. Halpern <jmh@joelhalpern.com>; spring@ietf.org
> Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
>=20
> Dear WG:
>=20
> If you have not already done so please do provide your comments to the
> mailing list as soon as possible.
>=20
> Thanks!
>=20
> Jim, Joel & Bruno
>=20
> -----Original Message-----
> From: spring <spring-bounces@ietf.org> On Behalf Of Joel M. Halpern
> Sent: Wednesday, August 4, 2021 2:52 PM
> To: spring@ietf.org
> Subject: [spring] Progressing Standardizing SR over IPv6 compression
>=20
> The SPRING Working Group Chairs thank the design team for their efforts o=
n
> the requirements and analysis drafts.  The question of how the working
> group wants to progress that part of the work will be the topic for a sep=
arate
> email a bit later.
>=20
> Right now, we are hearing the discussion about how many solutions, and th=
e
> perspectives being expressed.  While the topic was well-raised, the
> discussion to date has not been structured in a way that makes clear to
> everyone what the purpose is.  In particular, the chairs have decided to
> re-ask the question.  We ask that even those who have responded in the
> discussion respond to this thread.  Preferably with both what their opini=
on
> is and an explanation of why.
>=20
> The question we are asking you to comment on is:
>=20
> Should the working group standardize one data plane behavior for
> compressing SRv6 information?
>=20
> Please speak up.  We are looking to collect responses until close of busi=
ness
> PDT on 20-August-2021.
>=20
> Thank you,
> Joel, Jim, and Bruno
>=20
> _______________________________________________
> spring mailing list
> spring@ietf.org
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>=20
> _______________________________________________
> spring mailing list
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> https://www.ietf.org/mailman/listinfo/spring


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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/5xAcV1aHYrhmC16YfDuF0b8CGQE>
Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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+ 1

One solution will be the best for any operator and the industry, so suggest=
 to move forward with one solution rather than spending more time again to =
explore several options (this has already taken long)
Since the CSID satisfies all the requirements, it will be great if we can h=
ave CSID standardized.



=E2=80=8BWarm regards,
Luc-Fabrice
 
Ndifor
Specialist - IP Access and Data center
Luc-Fabrice.Ndifor@mtn.com
T +237 677 55 02 13
Head Office: 360, Rue Drouot
=E2=80=8BP.O. Box 15 574 Douala, Cameroon
T +237 679 00 90 90
 | mtn.cm
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From: spring <spring-bounces@ietf.org> On Behalf Of Luis M. Contreras
Sent: Friday, August 6, 2021 7:07 PM
To: Boris Hassanov <bhassanov=3D40yahoo.com@dmarc.ietf.org>
Cc: SPRING WG List <spring@ietf.org>; Joel M. Halpern <jmh@joelhalpern.com>
Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression

+1

Best regards

Luis


El vie., 6 ago. 2021 19:12, Boris Hassanov <bhassanov=3D40yahoo.com@dmarc.i=
etf.org<mailto:40yahoo.com@dmarc.ietf.org>> escribi=C3=B3:
Hi Joel and all,

Please see my answer and comments below.

>Should the working group standardize one data plane behavior for compressi=
ng SRv6 information?

Yes, we should pick up one data plane SRv6 compression mechanism. Even if I=
t will be not an easy choice.

I have been on vendors side for a while  but now saying from operator persp=
ective: we need one standardized solution because we do not want to stuck w=
ith just one vendor and do not want to solve an interop nightmare between 2=
 or 3  different mechanisms from different vendors by ourselves in the near=
est future.

With all respect for the all vendors who invested much in particular techno=
logy.

SY,
Boris




On Wednesday, August 4, 2021, 09:52:48 PM GMT+3, Joel M. Halpern <jmh@joelh=
alpern.com<mailto:jmh@joelhalpern.com>> wrote:


The SPRING Working Group Chairs thank the design team for their efforts
on the requirements and analysis drafts.  The question of how the
working group wants to progress that part of the work will be the topic
for a separate email a bit later.

Right now, we are hearing the discussion about how many solutions, and
the perspectives being expressed.  While the topic was well-raised, the
discussion to date has not been structured in a way that makes clear to
everyone what the purpose is.  In particular, the chairs have decided to
re-ask the question.  We ask that even those who have responded in the
discussion respond to this thread.  Preferably with both what their
opinion is and an explanation of why.

The question we are asking you to comment on is:

Should the working group standardize one data plane behavior for
compressing SRv6 information?

Please speak up.  We are looking to collect responses until close of
business PDT on 20-August-2021.

Thank you,
Joel, Jim, and Bruno

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<p class=3D"MsoNormal"><span style=3D"font-family:&quot;MTN Brighter Sans&q=
uot;;color:#1F497D;mso-fareast-language:ZH-CN">+ 1<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;MTN Brighter Sans L=
ight&quot;"><o:p>&nbsp;</o:p></span></p>
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y:&quot;MTN Brighter Sans&quot;;color:#1F497D;mso-fareast-language:ZH-CN">O=
ne solution will be the best for any operator and the industry, so suggest =
to move forward with one solution rather than spending
 more time again to explore several options (this has already taken long)<o=
:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"line-height:150%"><span style=3D"font-famil=
y:&quot;MTN Brighter Sans&quot;;color:#1F497D;mso-fareast-language:ZH-CN">S=
ince the CSID satisfies all the requirements, it will be great if we can ha=
ve CSID standardized.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;MTN Brighter Sans L=
ight&quot;"><o:p>&nbsp;</o:p></span></p>
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=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>Luis M. Contreras<br>
<b>Sent:</b> Friday, August 6, 2021 7:07 PM<br>
<b>To:</b> Boris Hassanov &lt;bhassanov=3D40yahoo.com@dmarc.ietf.org&gt;<br=
>
<b>Cc:</b> SPRING WG List &lt;spring@ietf.org&gt;; Joel M. Halpern &lt;jmh@=
joelhalpern.com&gt;<br>
<b>Subject:</b> Re: [spring] Progressing Standardizing SR over IPv6 compres=
sion<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<p class=3D"MsoNormal">+1 <o:p></o:p></p>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Best regards<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Luis<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<div>
<p class=3D"MsoNormal">El vie., 6 ago. 2021 19:12, Boris Hassanov &lt;bhass=
anov=3D<a href=3D"mailto:40yahoo.com@dmarc.ietf.org">40yahoo.com@dmarc.ietf=
=2Eorg</a>&gt; escribi=C3=B3:<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-right:0in">
<div>
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif">Hi Joel and all,<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif">Please see my answer and comments below.<o:p></o:=
p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif">&gt;Should the working group standardize one data=
 plane behavior for compressing SRv6 information?
<o:p></o:p></span></p>
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif">Yes, we should pick up one data plane SRv6 compre=
ssion mechanism. Even if It will be not an easy choice.<o:p></o:p></span></=
p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif">I have been on vendors side for a while&nbsp; but=
 now saying from operator perspective: we need one standardized solution be=
cause we do not want to stuck with just one vendor
 and do not want to solve an interop nightmare between 2 or 3&nbsp; differe=
nt mechanisms from different vendors by ourselves in the nearest future.<o:=
p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif">With all respect for the all vendors who invested=
 much in particular technology.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif">SY,<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif">Boris<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif">&nbsp;<o:p></o:p></span></p>
</div>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
</div>
</div>
<div id=3D"m_-6945130244902213294ydp4b7179d1yahoo_quoted_8459797091">
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A">On Wednesday, August 4, 2021, 09:52=
:48 PM GMT+3, Joel M. Halpern &lt;<a href=3D"mailto:jmh@joelhalpern.com" ta=
rget=3D"_blank">jmh@joelhalpern.com</a>&gt; wrote:
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A">The SPRING Working Group Chairs tha=
nk the design team for their efforts
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A">on the requirements and analysis dr=
afts.&nbsp; The question of how the
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A">working group wants to progress tha=
t part of the work will be the topic
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A">for a separate email a bit later.<o=
:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A">Right now, we are hearing the discu=
ssion about how many solutions, and
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A">the perspectives being expressed.&n=
bsp; While the topic was well-raised, the
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A">discussion to date has not been str=
uctured in a way that makes clear to
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A">everyone what the purpose is.&nbsp;=
 In particular, the chairs have decided to
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A">re-ask the question.&nbsp; We ask t=
hat even those who have responded in the
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A">discussion respond to this thread.&=
nbsp; Preferably with both what their
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A">opinion is and an explanation of wh=
y.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A">The question we are asking you to c=
omment on is:<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A">Should the working group standardiz=
e one data plane behavior for
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A">compressing SRv6 information?<o:p><=
/o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A">Please speak up.&nbsp; We are looki=
ng to collect responses until close of
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A">business PDT on 20-August-2021.<o:p=
></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A">Thank you,<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A">Joel, Jim, and Bruno<o:p></o:p></sp=
an></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A">___________________________________=
____________<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A">spring mailing list<o:p></o:p></spa=
n></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A"><a href=3D"mailto:spring@ietf.org" =
target=3D"_blank">spring@ietf.org</a><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;He=
lvetica&quot;,sans-serif;color:#26282A"><a href=3D"https://www.ietf.org/mai=
lman/listinfo/spring" target=3D"_blank">https://www.ietf.org/mailman/listin=
fo/spring</a><o:p></o:p></span></p>
</div>
</div>
</div>
</div>
</div>
<p class=3D"MsoNormal">_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" target=3D"_blank">=
https://www.ietf.org/mailman/listinfo/spring</a><o:p></o:p></p>
</blockquote>
</div>
</div>
</body>
</html>

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From: Huaimo Chen <huaimo.chen@futurewei.com>
To: "Joel M. Halpern" <jmh@joelhalpern.com>, "spring@ietf.org" <spring@ietf.org>
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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Hi Everyone,

    It is better for the WG to standardize one data plane behavior
for compressing SRv6 information at present time.


Best Regards,

Huaimo

From: spring <spring-bounces@ietf.org> on behalf of Joel M. Halpern <jmh@jo=
elhalpern.com>
Date: Wednesday, 4 August 2021 at 19:52
To: spring@ietf.org <spring@ietf.org>
Subject: [spring] Progressing Standardizing SR over IPv6 compression

The SPRING Working Group Chairs thank the design team for their efforts
on the requirements and analysis drafts.  The question of how the
working group wants to progress that part of the work will be the topic
for a separate email a bit later.

Right now, we are hearing the discussion about how many solutions, and
the perspectives being expressed.  While the topic was well-raised, the
discussion to date has not been structured in a way that makes clear to
everyone what the purpose is.  In particular, the chairs have decided to
re-ask the question.  We ask that even those who have responded in the
discussion respond to this thread.  Preferably with both what their
opinion is and an explanation of why.

The question we are asking you to comment on is:

Should the working group standardize one data plane behavior for
compressing SRv6 information?

Please speak up.  We are looking to collect responses until close of
business PDT on 20-August-2021.

Thank you,
Joel, Jim, and Bruno

_______________________________________________
spring mailing list
spring@ietf.org
https://www.ietf.org/mailman/listinfo/spring<https://nam11.safelinks.protec=
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<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859-=
1">
<style type=3D"text/css" style=3D"display:none;"> P {margin-top:0;margin-bo=
ttom:0;} </style>
</head>
<body dir=3D"ltr">
<div style=3D"font-family: Calibri, Arial, Helvetica, sans-serif; font-size=
: 12pt; color: rgb(0, 0, 0);">
Hi Everyone,</div>
<div style=3D"font-family: Calibri, Arial, Helvetica, sans-serif; font-size=
: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style=3D"font-family: Calibri, Arial, Helvetica, sans-serif; font-size=
: 12pt; color: rgb(0, 0, 0);">
&nbsp; &nbsp; It is better for the WG to&nbsp;<span style=3D"background-col=
or:rgb(255, 255, 255);display:inline !important">standardize one data plane=
 behavior&nbsp;</span></div>
<div style=3D"font-family: Calibri, Arial, Helvetica, sans-serif; font-size=
: 12pt; color: rgb(0, 0, 0);">
<span style=3D"background-color:rgb(255, 255, 255);display:inline !importan=
t">for&nbsp;</span><span style=3D"background-color:rgb(255, 255, 255);displ=
ay:inline !important">compressing SRv6 information at present time.&nbsp;</=
span></div>
<div>
<div id=3D"divRplyFwdMsg" dir=3D"ltr">
<div>&nbsp;</div>
</div>
<div lang=3D"EN-GB" style=3D"word-wrap:break-word">
<div class=3D"x_WordSection1">
<p class=3D"x_MsoNormal" style=3D"margin: 0cm; font-size: 11pt; font-family=
: Calibri, sans-serif;">
Best Regards,</p>
<p class=3D"x_MsoNormal" style=3D"margin: 0cm; font-size: 11pt; font-family=
: Calibri, sans-serif;">
Huaimo</p>
<div style=3D"border:none; border-top:solid #B5C4DF 1.0pt; padding:3.0pt 0c=
m 0cm 0cm">
<p class=3D"x_MsoNormal" style=3D"margin: 0cm; font-size: 11pt; font-family=
: Calibri, sans-serif;margin-bottom:12.0pt">
<b><span style=3D"font-size:12.0pt; color:black">From: </span></b><span sty=
le=3D"font-size:12.0pt; color:black">spring &lt;spring-bounces@ietf.org&gt;=
 on behalf of Joel M. Halpern &lt;jmh@joelhalpern.com&gt;<br>
<b>Date: </b>Wednesday, 4 August 2021 at 19:52<br>
<b>To: </b>spring@ietf.org &lt;spring@ietf.org&gt;<br>
<b>Subject: </b>[spring] Progressing Standardizing SR over IPv6 compression=
</span></p>
</div>
<div>
<p class=3D"x_MsoNormal" style=3D"margin: 0cm; font-size: 11pt; font-family=
: Calibri, sans-serif;">
The SPRING Working Group Chairs thank the design team for their efforts <br=
>
on the requirements and analysis drafts.&nbsp; The question of how the <br>
working group wants to progress that part of the work will be the topic <br=
>
for a separate email a bit later.<br>
<br>
Right now, we are hearing the discussion about how many solutions, and <br>
the perspectives being expressed.&nbsp; While the topic was well-raised, th=
e <br>
discussion to date has not been structured in a way that makes clear to <br=
>
everyone what the purpose is.&nbsp; In particular, the chairs have decided =
to <br>
re-ask the question.&nbsp; We ask that even those who have responded in the=
 <br>
discussion respond to this thread.&nbsp; Preferably with both what their <b=
r>
opinion is and an explanation of why.<br>
<br>
The question we are asking you to comment on is:<br>
<br>
Should the working group standardize one data plane behavior for <br>
compressing SRv6 information?<br>
<br>
Please speak up.&nbsp; We are looking to collect responses until close of <=
br>
business PDT on 20-August-2021.<br>
<br>
Thank you,<br>
Joel, Jim, and Bruno<br>
<br>
_______________________________________________<br>
spring mailing list<br>
spring@ietf.org<br>
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From nobody Thu Aug 19 03:04:42 2021
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To: "Bocci, Matthew (Nokia - GB)" <matthew.bocci@nokia.com>, "Joel M. Halpern" <jmh@joelhalpern.com>, "spring@ietf.org" <spring@ietf.org>
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From: Loa Andersson <loa@pi.nu>
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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Dhairs, working group,

I agree with Matthew, we should standardize one single data plane 
behavior for IPv6 compression.


/Loa
 > compressing SRv6 information

On 18/08/2021 19:35, Bocci, Matthew (Nokia - GB) wrote:
> Joel
> 
> Yes, I believe the WG should standardize a single data plane solution.
> 
> This will enable to the WG and industry to move forward and enable 
> vendors to implement a single interoperable solution. It reduces overall 
> solution complexity and greatly benefits deployments.
> 
> Based on the experience of multiple working groups, it is hugely 
> beneficial to have a single data plane solution on which we can focus 
> our efforts.
> 
> Thanks
> 
> Matthew
> 
> *From: *spring <spring-bounces@ietf.org> on behalf of Joel M. Halpern 
> <jmh@joelhalpern.com>
> *Date: *Wednesday, 4 August 2021 at 19:52
> *To: *spring@ietf.org <spring@ietf.org>
> *Subject: *[spring] Progressing Standardizing SR over IPv6 compression
> 
> The SPRING Working Group Chairs thank the design team for their efforts
> on the requirements and analysis drafts.  The question of how the
> working group wants to progress that part of the work will be the topic
> for a separate email a bit later.
> 
> Right now, we are hearing the discussion about how many solutions, and
> the perspectives being expressed.  While the topic was well-raised, the
> discussion to date has not been structured in a way that makes clear to
> everyone what the purpose is.  In particular, the chairs have decided to
> re-ask the question.  We ask that even those who have responded in the
> discussion respond to this thread.  Preferably with both what their
> opinion is and an explanation of why.
> 
> The question we are asking you to comment on is:
> 
> Should the working group standardize one data plane behavior for
> compressing SRv6 information?
> 
> Please speak up.  We are looking to collect responses until close of
> business PDT on 20-August-2021.
> 
> Thank you,
> Joel, Jim, and Bruno
> 
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring 
> <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                          loa.pi.nu@gmail.com
Bronze Dragon Consulting             phone: +46 739 81 21 64


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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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Hello,

As said previously, it is imperative for the industry to have a single stan=
dardized solution.

Many Thanks,

-- Brd

-----Original Message-----
From: spring <spring-bounces@ietf.org> On Behalf Of James Guichard
Sent: Tuesday, August 17, 2021 10:28 PM
To: Joel M. Halpern <jmh@joelhalpern.com>; spring@ietf.org
Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression

Dear WG:

If you have not already done so please do provide your comments to the mail=
ing list as soon as possible.=20

Thanks!

Jim, Joel & Bruno

-----Original Message-----
From: spring <spring-bounces@ietf.org> On Behalf Of Joel M. Halpern
Sent: Wednesday, August 4, 2021 2:52 PM
To: spring@ietf.org
Subject: [spring] Progressing Standardizing SR over IPv6 compression

The SPRING Working Group Chairs thank the design team for their efforts on =
the requirements and analysis drafts.  The question of how the working grou=
p wants to progress that part of the work will be the topic for a separate =
email a bit later.

Right now, we are hearing the discussion about how many solutions, and the =
perspectives being expressed.  While the topic was well-raised, the discuss=
ion to date has not been structured in a way that makes clear to everyone w=
hat the purpose is.  In particular, the chairs have decided to re-ask the q=
uestion.  We ask that even those who have responded in the discussion respo=
nd to this thread.  Preferably with both what their opinion is and an expla=
nation of why.

The question we are asking you to comment on is:

Should the working group standardize one data plane behavior for compressin=
g SRv6 information?

Please speak up.  We are looking to collect responses until close of busine=
ss PDT on 20-August-2021.

Thank you,
Joel, Jim, and Bruno

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From: Lizhenbin <lizhenbin@huawei.com>
To: TEAS WG <teas@ietf.org>
CC: "Dongjie (Jimmy)" <jie.dong@huawei.com>, "spring@ietf.org" <spring@ietf.org>, "mpls@ietf.org" <mpls@ietf.org>, "EXT-vishnupavan@gmai" <vishnupavan@gmail.com>, Adrian Farrel <adrian@olddog.co.uk>, Tarek Saad <tsaad.net@gmail.com>, =?utf-8?B?6b6a56uL6Imz?= <gongliyan@chinamobile.com>, draft-ali-teas-sprin <draft-ali-teas-spring-ns-building-blocks@ietf.org>, draft-filsfils-sprin <draft-filsfils-spring-srv6-stateless-slice-id@ietf.org>, draft-decraene-mpls- <draft-decraene-mpls-slid-encoded-entropy-label-id@ietf.org>
Thread-Topic: More Discussion//RE: Re:Re: [Teas] New term for the underlay construct used for slice realization
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From: Yingzhen Qu <yingzhen.ietf@gmail.com>
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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I support to have only one data plane compressing solution.=20

Having more than one behaviors standardized means that vendors will need =
to support all the solutions, and before that happens there will be =
interoperability issues, essentially zero solution.

Thanks,
Yingzhen

> On Aug 4, 2021, at 11:52 AM, Joel M. Halpern <jmh@joelhalpern.com> =
wrote:
>=20
> The SPRING Working Group Chairs thank the design team for their =
efforts on the requirements and analysis drafts.  The question of how =
the working group wants to progress that part of the work will be the =
topic for a separate email a bit later.
>=20
> Right now, we are hearing the discussion about how many solutions, and =
the perspectives being expressed.  While the topic was well-raised, the =
discussion to date has not been structured in a way that makes clear to =
everyone what the purpose is.  In particular, the chairs have decided to =
re-ask the question.  We ask that even those who have responded in the =
discussion respond to this thread.  Preferably with both what their =
opinion is and an explanation of why.
>=20
> The question we are asking you to comment on is:
>=20
> Should the working group standardize one data plane behavior for =
compressing SRv6 information?
>=20
> Please speak up.  We are looking to collect responses until close of =
business PDT on 20-August-2021.
>=20
> Thank you,
> Joel, Jim, and Bruno
>=20
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring


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From: John E Drake <jdrake@juniper.net>
To: Lizhenbin <lizhenbin@huawei.com>, TEAS WG <teas@ietf.org>
CC: "Dongjie (Jimmy)" <jie.dong@huawei.com>, "spring@ietf.org" <spring@ietf.org>, "mpls@ietf.org" <mpls@ietf.org>, =?utf-8?B?6b6a56uL6Imz?= <gongliyan@chinamobile.com>, draft-filsfils-sprin <draft-filsfils-spring-srv6-stateless-slice-id@ietf.org>, draft-ali-teas-sprin <draft-ali-teas-spring-ns-building-blocks@ietf.org>, "EXT-vishnupavan@gmail.com" <vishnupavan@gmail.com>, Adrian Farrel <adrian@olddog.co.uk>, Tarek Saad <tsaad.net@gmail.com>, draft-decraene-mpls- <draft-decraene-mpls-slid-encoded-entropy-label-id@ietf.org>
Thread-Topic: [Teas] More Discussion//RE: Re:Re: New term for the underlay construct used for slice realization
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/Ze9JsVyZeA83vK2UOFoowuJcjJI>
Subject: Re: [spring] [Teas] More Discussion//RE: Re:Re: New term for the underlay construct used for slice realization
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From: Satoru Matsushima <satoru.matsushima@gmail.com>
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Cc: "Joel M. Halpern" <jmh@joelhalpern.com>, spring@ietf.org
Date: Sat, 21 Aug 2021 01:32:25 +0900
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To: James Guichard <james.n.guichard@futurewei.com>
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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Hi Chairs, and WG,

As an SRv6 network operator, I support that the WG adopts one single data pl=
ane behavior and standardize it as the SRv6 SID list compression spec. It is=
 simple and IMO the best way for all of us.

Cheers,
--satoru

> On Aug 18, 2021, at 5:28, James Guichard <james.n.guichard@futurewei.com> w=
rote:
> =EF=BB=BFDear WG:
>=20
> If you have not already done so please do provide your comments to the mai=
ling list as soon as possible.=20
>=20
> Thanks!
>=20
> Jim, Joel & Bruno
>=20
> -----Original Message-----
> From: spring <spring-bounces@ietf.org> On Behalf Of Joel M. Halpern
> Sent: Wednesday, August 4, 2021 2:52 PM
> To: spring@ietf.org
> Subject: [spring] Progressing Standardizing SR over IPv6 compression
>=20
> The SPRING Working Group Chairs thank the design team for their efforts on=
 the requirements and analysis drafts.  The question of how the working grou=
p wants to progress that part of the work will be the topic for a separate e=
mail a bit later.
>=20
> Right now, we are hearing the discussion about how many solutions, and the=
 perspectives being expressed.  While the topic was well-raised, the discuss=
ion to date has not been structured in a way that makes clear to everyone wh=
at the purpose is.  In particular, the chairs have decided to re-ask the que=
stion.  We ask that even those who have responded in the discussion respond t=
o this thread.  Preferably with both what their opinion is and an explanatio=
n of why.
>=20
> The question we are asking you to comment on is:
>=20
> Should the working group standardize one data plane behavior for compressi=
ng SRv6 information?
>=20
> Please speak up.  We are looking to collect responses until close of busin=
ess PDT on 20-August-2021.
>=20
> Thank you,
> Joel, Jim, and Bruno
>=20
> _______________________________________________
> spring mailing list
> spring@ietf.org
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> https://www.ietf.org/mailman/listinfo/spring


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CC: "Dongjie (Jimmy)" <jie.dong@huawei.com>, "spring@ietf.org" <spring@ietf.org>, "mpls@ietf.org" <mpls@ietf.org>, =?gb2312?B?uajBotHe?= <gongliyan@chinamobile.com>, draft-filsfils-sprin <draft-filsfils-spring-srv6-stateless-slice-id@ietf.org>, draft-ali-teas-sprin <draft-ali-teas-spring-ns-building-blocks@ietf.org>, "EXT-vishnupavan@gmail.com" <vishnupavan@gmail.com>, Adrian Farrel <adrian@olddog.co.uk>, draft-decraene-mpls- <draft-decraene-mpls-slid-encoded-entropy-label-id@ietf.org>
Thread-Topic: [Teas] More Discussion//RE: Re:Re: New term for the underlay construct used for slice realization
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/va5Y01AqLOC5j6hG2uahGVK8x5c>
Subject: Re: [spring] [Teas] More Discussion//RE: Re:Re: New term for the underlay construct used for slice realization
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<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif">Hi,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif">Comments inline..<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif"><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"col=
or:black">From:
</span></b><span style=3D"color:black">John E Drake &lt;jdrake@juniper.net&=
gt;<br>
<b>Date: </b>Friday, August 20, 2021 at 9:33 AM<br>
<b>To: </b>Lizhenbin &lt;lizhenbin@huawei.com&gt;, TEAS WG &lt;teas@ietf.or=
g&gt;<br>
<b>Cc: </b>Dongjie (Jimmy) &lt;jie.dong@huawei.com&gt;, spring@ietf.org &lt=
;spring@ietf.org&gt;, mpls@ietf.org &lt;mpls@ietf.org&gt;, =B9=A8=C1=A2=D1=
=DE &lt;gongliyan@chinamobile.com&gt;, draft-filsfils-sprin &lt;draft-filsf=
ils-spring-srv6-stateless-slice-id@ietf.org&gt;, draft-ali-teas-sprin &lt;d=
raft-ali-teas-spring-ns-building-blocks@ietf.org&gt;,
 EXT-vishnupavan@gmail.com &lt;vishnupavan@gmail.com&gt;, Adrian Farrel &lt=
;adrian@olddog.co.uk&gt;, Tarek Saad &lt;tsaad.net@gmail.com&gt;, draft-dec=
raene-mpls- &lt;draft-decraene-mpls-slid-encoded-entropy-label-id@ietf.org&=
gt;<br>
<b>Subject: </b>RE: [Teas] More Discussion//RE: Re:Re: New term for the und=
erlay construct used for slice realization<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif">Hi,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif">Comments inline.<o:p></o:p></span></=
p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif">Yours Irrespectively,<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif">John<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0cm;text-a=
lign:center">
<span lang=3D"EN-US" style=3D"font-size:7.0pt;font-family:&quot;Calibri&quo=
t;,sans-serif;color:black">Juniper Business Use Only</span><span lang=3D"EN=
-US"><o:p></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"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,sans-serif">From:</span></b><span lang=3D"EN-=
US" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif"> =
Teas &lt;teas-bounces@ietf.org&gt;
<b>On Behalf Of </b>Lizhenbin<br>
<b>Sent:</b> Thursday, August 19, 2021 1:05 PM<br>
<b>To:</b> TEAS WG &lt;teas@ietf.org&gt;<br>
<b>Cc:</b> Dongjie (Jimmy) &lt;jie.dong@huawei.com&gt;; spring@ietf.org; mp=
ls@ietf.org;
</span><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;Mic=
rosoft JhengHei&quot;,sans-serif">=B9=A8=C1=A2=D1=DE</span><span lang=3D"EN=
-US" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif">=
 &lt;gongliyan@chinamobile.com&gt;; draft-filsfils-sprin &lt;draft-filsfils=
-spring-srv6-stateless-slice-id@ietf.org&gt;;
 draft-ali-teas-sprin &lt;draft-ali-teas-spring-ns-building-blocks@ietf.org=
&gt;; EXT-vishnupavan@gmail.com &lt;vishnupavan@gmail.com&gt;; Adrian Farre=
l &lt;adrian@olddog.co.uk&gt;; Tarek Saad &lt;tsaad.net@gmail.com&gt;; draf=
t-decraene-mpls- &lt;draft-decraene-mpls-slid-encoded-entropy-label-id@ietf=
.org&gt;<br>
<b>Subject:</b> [Teas] More Discussion//RE: Re:Re: New term for the underla=
y construct used for slice realization<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"line-height:12.0pt;background:#FFEB9C"><b><=
span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Lato&quot;,=
sans-serif;color:black;mso-fareast-language:ZH-CN">[External Email. Be caut=
ious of content]<o:p></o:p></span></b></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&nbs=
p;</o:p></span></p>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">Hi Folks,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">The =A1=B0new term=A1=B1 discussion has been lasted for a while, thank=
s to all who participated in the discussion.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">So far it seems there are some rough consensus about this =A1=B0new te=
rm=A1=B1 (maybe I am wrong) :<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">1. It is better to have a neutral term, which allows this underlay con=
struct to be used for both network slice services
 and other types of services.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">2. It seems =A1=B0resource group=A1=B1 receives more support than othe=
r candidates.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:=
p>&nbsp;</o:p></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">[JD=
]&nbsp; Making these conclusions is the co-chairs=A1=AF job.<o:p></o:p></sp=
an></i></b></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:14.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:14.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">[TS]: +1<=
o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">Here I=A1=AFd also like to share some considerations and doubts about =
the underlay construct used for slice realization:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">1. Before this discussion happens, it seems many network slicing relat=
ed drafts use =A1=B0slice=A1=B1 in their terms which refer
 to this underlay construct. However, through this new term discussion, it =
seems most people indicate they prefer a neutral term than a slice specific=
 term. Thus I expect the authors of the related drafts to provide more feed=
back about this point and indicate
 whether they agree with the choice of a neutral term.<o:p></o:p></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">2. As mentioned several times during the discussion, this underlay con=
struct has both the topology and resource attributes.
 With the term =A1=B0resource group=A1=B1, it is clear that it is a set of =
network resources, then how about the topology attribute? Is the topology a=
ttribute also included in the =A1=B0resource group=A1=B1?
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:=
p>&nbsp;</o:p></span></i></b></p>
<p class=3D"MsoNormal" style=3D"margin-left:9.6pt"><b><i><span lang=3D"EN-U=
S" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;mso=
-fareast-language:ZH-CN">[JD]&nbsp; There are two separate concepts:<o:p></=
o:p></span></i></b></p>
<p class=3D"MsoNormal" style=3D"margin-left:9.6pt"><b><i><span lang=3D"EN-U=
S" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;mso=
-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></i></b></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:27.6pt;text-indent:-18.0=
pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt;f=
ont-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><span=
 style=3D"mso-list:Ignore">1)<span style=3D"font:7.0pt &quot;Times New Roma=
n&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span></i></b><![endif]><b><i><span lang=3D"EN-US" style=3D"=
font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-lan=
guage:ZH-CN">Resource Partition - a subset of an underlay network link's bu=
ffer/queuing/scheduling resources used to enable
 the underlay network to have finer grained control of its data plane.<o:p>=
</o:p></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:=
p>&nbsp;</o:p></span></i></b></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:27.6pt;text-indent:-18.0=
pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt;f=
ont-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><span=
 style=3D"mso-list:Ignore">2)<span style=3D"font:7.0pt &quot;Times New Roma=
n&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span></i></b><![endif]><b><i><span lang=3D"EN-US" style=3D"=
font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-lan=
guage:ZH-CN">Combining these resource partitions into a topology in the und=
erlay network, for which I was using the term
 'partitioned underlay network topology'.<o:p></o:p></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:14.0pt=
;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:=
p>&nbsp;</o:p></span></i></b></p>
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"font-size:14.0pt;fo=
nt-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&=
nbsp;</o:p></span></b></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif">[TS]: I suggested appending network =A8C i.e. =A1=
=B0network resource partition=A1=B1 as more suitable to indicate resources =
are over an underlay =A1=B0network=A1=B1 vs. a resource partition over
 a single link.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"font-size:14.0pt;fo=
nt-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&=
nbsp;</o:p></span></b></p>
<p class=3D"MsoNormal" style=3D"margin-left:4.8pt"><b><i><span lang=3D"EN-U=
S" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;mso=
-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></i></b></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">3. What is the intended scope of resource group? More specifically, is=
 a point-to-point path or a P2MP path with a set
 of reserved network resource a resource group? In history, RSVP-TE was use=
d to set up resource reserved point-to-point TE paths and P2MP TE paths. Mo=
re recently, there is effort in DetNet WG on the mechanisms to set up deter=
ministic data paths. Can these paths
 be considered as resource groups? &nbsp;Can we further classify them into =
different P2P resource group, P2MP resource group, or MP2MP resource group?=
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:=
p>&nbsp;</o:p></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">[JD=
]&nbsp; The connectivity constructs of a given IETF network slice service c=
an be implemented in the underlay network using whatever
 technologies the provider wishes to use.&nbsp; A given resource partition =
can support multiple connectivity constructs of any type.<o:p></o:p></span>=
</i></b></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:=
p>&nbsp;</o:p></span></i></b></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif">[TS]: I agree here. Different connectivity types ca=
n be realized over the same network resource partition</span>
<o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:14.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">4. A more subtle question is, what is the relationship between resourc=
e group and TE? Is resource group a construct under
 the TE architecture, or is there some overlap between them?</span><span la=
ng=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,sans=
-serif;mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">[JD=
]&nbsp; Resource partitions just provide an enhanced underlay network topol=
ogy to which a provider can apply TE if they so desire.<o:p></o:p></span></=
i></b></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:14.0pt=
;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:=
p>&nbsp;</o:p></span></i></b></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif">[TS]: TE can be done over the resources that a netw=
ork resource partition can offer =A8C for example, to optimally place paths=
 over the remaining resources of network resource
 partition.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif">Regards,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif">Tarek<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:14.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">Wish to learn your thoughts on these considerations and doubts.<o:p></=
o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">Robin<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;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"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">From:<=
/span></b><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;=
Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"> Lizhenbin
<br>
<b>Sent:</b> Tuesday, August 17, 2021 10:29 PM<br>
<b>To:</b> '</span><span lang=3D"ZH-CN" style=3D"font-size:11.0pt;mso-farea=
st-language:ZH-CN">=B9=A8=C1=A2=D1=DE</span><span lang=3D"EN-US" style=3D"f=
ont-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-lang=
uage:ZH-CN">' &lt;<a href=3D"mailto:gongliyan@chinamobile.com">gongliyan@ch=
inamobile.com</a>&gt;;
 draft-ali-teas-sprin &lt;<a href=3D"mailto:draft-ali-teas-spring-ns-buildi=
ng-blocks@ietf.org">draft-ali-teas-spring-ns-building-blocks@ietf.org</a>&g=
t;; draft-filsfils-sprin &lt;<a href=3D"mailto:draft-filsfils-spring-srv6-s=
tateless-slice-id@ietf.org">draft-filsfils-spring-srv6-stateless-slice-id@i=
etf.org</a>&gt;;
 draft-decraene-mpls- &lt;<a href=3D"mailto:draft-decraene-mpls-slid-encode=
d-entropy-label-id@ietf.org">draft-decraene-mpls-slid-encoded-entropy-label=
-id@ietf.org</a>&gt;<br>
<b>Cc:</b> Dongjie (Jimmy) &lt;<a href=3D"mailto:jie.dong@huawei.com">jie.d=
ong@huawei.com</a>&gt;;
<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>; <a href=3D"mailto:m=
pls@ietf.org">
mpls@ietf.org</a>; TEAS WG &lt;<a href=3D"mailto:teas@ietf.org">teas@ietf.o=
rg</a>&gt;; EXT-vishnupavan@gmai &lt;<a href=3D"mailto:vishnupavan@gmail.co=
m">vishnupavan@gmail.com</a>&gt;; Adrian Farrel &lt;<a href=3D"mailto:adria=
n@olddog.co.uk">adrian@olddog.co.uk</a>&gt;; Tarek Saad
 &lt;<a href=3D"mailto:tsaad.net@gmail.com">tsaad.net@gmail.com</a>&gt;<br>
<b>Subject:</b> RE: Re:Re: [Teas] New term for the underlay construct used =
for slicerealization<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:Z=
H-CN"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">Hi Liyan,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">Sorry that I missed your new draft. Thanks for your feedback. It is he=
lpful for us to have a common terminology.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">Robin<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">From:<=
/span></b><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;=
Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">
</span><span lang=3D"ZH-CN" style=3D"font-size:11.0pt;mso-fareast-language:=
ZH-CN">=B9=A8=C1=A2=D1=DE</span><span lang=3D"EN-US" style=3D"font-size:11.=
0pt;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">=
 [<a href=3D"mailto:gongliyan@chinamobile.com">mailto:gongliyan@chinamobile=
.com</a>]
<br>
<b>Sent:</b> Tuesday, August 17, 2021 4:48 PM<br>
<b>To:</b> Lizhenbin &lt;<a href=3D"mailto:lizhenbin@huawei.com">lizhenbin@=
huawei.com</a>&gt;; draft-ali-teas-sprin &lt;<a href=3D"mailto:draft-ali-te=
as-spring-ns-building-blocks@ietf.org">draft-ali-teas-spring-ns-building-bl=
ocks@ietf.org</a>&gt;; draft-filsfils-sprin &lt;<a href=3D"mailto:draft-fil=
sfils-spring-srv6-stateless-slice-id@ietf.org">draft-filsfils-spring-srv6-s=
tateless-slice-id@ietf.org</a>&gt;;
 draft-decraene-mpls- &lt;<a href=3D"mailto:draft-decraene-mpls-slid-encode=
d-entropy-label-id@ietf.org">draft-decraene-mpls-slid-encoded-entropy-label=
-id@ietf.org</a>&gt;<br>
<b>Cc:</b> Dongjie (Jimmy) &lt;<a href=3D"mailto:jie.dong@huawei.com">jie.d=
ong@huawei.com</a>&gt;;
<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>; <a href=3D"mailto:m=
pls@ietf.org">
mpls@ietf.org</a>; TEAS WG &lt;<a href=3D"mailto:teas@ietf.org">teas@ietf.o=
rg</a>&gt;; EXT-vishnupavan@gmai &lt;<a href=3D"mailto:vishnupavan@gmail.co=
m">vishnupavan@gmail.com</a>&gt;; Adrian Farrel &lt;<a href=3D"mailto:adria=
n@olddog.co.uk">adrian@olddog.co.uk</a>&gt;; Tarek Saad
 &lt;<a href=3D"mailto:tsaad.net@gmail.com">tsaad.net@gmail.com</a>&gt;<br>
<b>Subject:</b> Re:Re: [Teas] New term for the underlay construct used for =
slicerealization<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:Z=
H-CN"><o:p>&nbsp;</o:p></span></p>
<p><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">Hi All</span><=
span lang=3D"ZH-CN" style=3D"font-family:&quot;MS Gothic&quot;;mso-fareast-=
language:ZH-CN">=A3=AC</span><span lang=3D"EN-US" style=3D"mso-fareast-lang=
uage:ZH-CN"><o:p></o:p></span></p>
<p><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">The draft-chen=
g-spring-srv6-encoding-network-sliceid[1] also provided a slice ID encoding=
 solution.<o:p></o:p></span></p>
<p><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">And about the =
discussion, we are fine to follow the final decision of the WG, no special =
requirements.<o:p></o:p></span></p>
<p><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p>&nbsp;</o=
:p></span></p>
<p><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">[1] <a href=3D=
"https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/draft-cheng-sp=
ring-srv6-encoding-network-sliceid/__;!!NEt6yMaO-gk!UEzcMT5c8gj3IM4YTjtt3_c=
AKLDIdvWjVnDnaMVJtcpFKSjgsNrS6x9I2VZ2kRs$">
https://datatracker.ietf.org/doc/draft-cheng-spring-srv6-encoding-network-s=
liceid/</a><o:p></o:p></span></p>
<p><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p>&nbsp;</o=
:p></span></p>
<p><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">Best Regards,<=
o:p></o:p></span></p>
<p><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">Liyan Gong<o:p=
></o:p></span></p>
<div id=3D"divsignature">
<p><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p>&nbsp;</o=
:p></span></p>
</div>
<blockquote style=3D"margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;ma=
rgin-bottom:5.0pt" id=3D"oriMsgHtmlSeperator">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:Z=
H-CN">----</span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=
=D3=CA=BC=FE=D4=AD=CE=C4</span><span lang=3D"EN-US" style=3D"mso-fareast-la=
nguage:ZH-CN">----<br>
</span><strong><span lang=3D"ZH-CN" style=3D"font-family:SimSun;mso-fareast=
-language:ZH-CN">=B7=A2=BC=FE=C8=CB=A3=BA</span></strong><span lang=3D"EN-U=
S" style=3D"mso-fareast-language:ZH-CN">Lizhenbin&nbsp;&nbsp;&lt;<a href=3D=
"mailto:lizhenbin@huawei.com">lizhenbin@huawei.com</a>&gt;<br>
</span><strong><span lang=3D"ZH-CN" style=3D"font-family:SimSun;mso-fareast=
-language:ZH-CN">=CA=D5=BC=FE=C8=CB=A3=BA</span></strong><span lang=3D"EN-U=
S" style=3D"mso-fareast-language:ZH-CN">&quot;<a href=3D"mailto:draft-ali-t=
eas-spring-ns-building-blocks@ietf.org">draft-ali-teas-spring-ns-building-b=
locks@ietf.org</a>&quot;&nbsp;&lt;<a href=3D"mailto:draft-ali-teas-spring-n=
s-building-blocks@ietf.org">draft-ali-teas-spring-ns-building-blocks@ietf.o=
rg</a>&gt;,&quot;<a href=3D"mailto:draft-filsfils-spring-srv6-stateless-sli=
ce-id@ietf.org">draft-filsfils-spring-srv6-stateless-slice-id@ietf.org</a>&=
quot;&nbsp;&lt;<a href=3D"mailto:draft-filsfils-spring-srv6-stateless-slice=
-id@ietf.org">draft-filsfils-spring-srv6-stateless-slice-id@ietf.org</a>&gt=
;,&quot;<a href=3D"mailto:draft-decraene-mpls-slid-encoded-entropy-label-id=
@ietf.org">draft-decraene-mpls-slid-encoded-entropy-label-id@ietf.org</a>&q=
uot;&nbsp;&lt;<a href=3D"mailto:draft-decraene-mpls-slid-encoded-entropy-la=
bel-id@ietf.org">draft-decraene-mpls-slid-encoded-entropy-label-id@ietf.org=
</a>&gt;<br>
</span><strong><span lang=3D"ZH-CN" style=3D"font-family:SimSun;mso-fareast=
-language:ZH-CN">=B3=AD=A1=A1=CB=CD</span></strong><strong><span lang=3D"EN=
-US" style=3D"font-family:SimSun;mso-fareast-language:ZH-CN">:
</span></strong><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&=
quot;Dongjie&nbsp;<a href=3D"file:///(Jimmy/)">\\(Jimmy\\)</a>&quot;&nbsp;&=
lt;<a href=3D"mailto:jie.dong@huawei.com">jie.dong@huawei.com</a>&gt;,&quot=
;<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&quot;&nbsp;&lt;<a h=
ref=3D"mailto:spring@ietf.org">spring@ietf.org</a>&gt;,&quot;<a href=3D"mai=
lto:mpls@ietf.org">mpls@ietf.org</a>&quot;&nbsp;&lt;<a href=3D"mailto:mpls@=
ietf.org">mpls@ietf.org</a>&gt;,TEAS&nbsp;WG&nbsp;&nbsp;&lt;<a href=3D"mail=
to:teas@ietf.org">teas@ietf.org</a>&gt;,John&nbsp;E&nbsp;Drake&nbsp;&nbsp;&=
lt;<a href=3D"mailto:jdrake=3D40juniper.net@dmarc.ietf.org">jdrake=3D40juni=
per.net@dmarc.ietf.org</a>&gt;,&quot;<a href=3D"mailto:EXT-vishnupavan@gmai=
l.com">EXT-vishnupavan@gmail.com</a>&quot;&nbsp;&lt;<a href=3D"mailto:vishn=
upavan@gmail.com">vishnupavan@gmail.com</a>&gt;,Adrian&nbsp;Farrel&nbsp;&nb=
sp;&lt;<a href=3D"mailto:adrian@olddog.co.uk">adrian@olddog.co.uk</a>&gt;,T=
arek&nbsp;Saad&nbsp;&nbsp;&lt;<a href=3D"mailto:tsaad.net@gmail.com">tsaad.=
net@gmail.com</a>&gt;<br>
</span><strong><span lang=3D"ZH-CN" style=3D"font-family:SimSun;mso-fareast=
-language:ZH-CN">=B7=A2=CB=CD=CA=B1=BC=E4=A3=BA</span></strong><span lang=
=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">2021-08-17 00:04:32<br>
</span><strong><span lang=3D"ZH-CN" style=3D"font-family:SimSun;mso-fareast=
-language:ZH-CN">=D6=F7=CC=E2=A3=BA</span></strong><span lang=3D"EN-US" sty=
le=3D"mso-fareast-language:ZH-CN">Re:&nbsp;[Teas]&nbsp;New&nbsp;term&nbsp;f=
or&nbsp;the&nbsp;underlay&nbsp;construct&nbsp;used&nbsp;for&nbsp;slicereali=
zation<br>
<br>
&nbsp; &nbsp;<o:p></o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Hi author=
s of draft-ali-teas-spring-ns-building-blocks/draft-filsfils-spring-srv6-st=
ateless-slice-id/draft-decraene-mpls-slid-encoded-entropy-label-id,</span><=
span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span>=
</p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">It is kno=
wn that your drafts are also related with the underlay
 construct used for slice realization. It also seems that you use the term =
with =A1=B0slice=A1=B1 &nbsp;for the underlay construct. In the discussion =
of TEAS WG, there is some consensus to define a neutral new term without =
=A1=B0slice=A1=B1. &nbsp;Wish to learn your opinions on the new
 term definition and there would be a convergence on the new term after you=
r participating &nbsp;in the discussion.</span><span lang=3D"EN-US" style=
=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Best Rega=
rds,</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p><=
/o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Robin</sp=
an><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><strong><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family=
:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">From:</span></s=
trong><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;Cali=
bri&quot;,sans-serif;mso-fareast-language:ZH-CN">
 Teas [<a href=3D"mailto:teas-bounces@ietf.org">mailto:teas-bounces@ietf.or=
g</a>] <strong>
<span style=3D"font-family:&quot;Calibri&quot;,sans-serif">On Behalf Of </s=
pan></strong>John E Drake<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Sent:</s=
pan></strong> Monday, August 16, 2021 8:53 PM<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">To:</spa=
n></strong> Dongjie (Jimmy) &lt;<a href=3D"mailto:jie.dong@huawei.com">jie.=
dong@huawei.com</a>&gt;;
<a href=3D"mailto:EXT-vishnupavan@gmail.com">EXT-vishnupavan@gmail.com</a> =
&lt;<a href=3D"mailto:vishnupavan@gmail.com">vishnupavan@gmail.com</a>&gt;;=
 Adrian Farrel &lt;<a href=3D"mailto:adrian@olddog.co.uk">adrian@olddog.co.=
uk</a>&gt;<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Cc:</spa=
n></strong> Tarek Saad &lt;<a href=3D"mailto:tsaad.net@gmail.com">tsaad.net=
@gmail.com</a>&gt;; TEAS WG &lt;<a href=3D"mailto:teas@ietf.org">teas@ietf.=
org</a>&gt;<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Subject:=
</span></strong> Re: [Teas] New term for the underlay construct used for sl=
ice realization</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH=
-CN"><o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif;mso-fareast-language:ZH-CN">Hi,</span><span lang=3D=
"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif;mso-fareast-language:ZH-CN">&nbsp;</span><span lang=
=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif;mso-fareast-language:ZH-CN">It sounds like slice ag=
gregates, or more generally overlay network service
 aggregates, are the things which use resource partitions.</span><span lang=
=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif;mso-fareast-language:ZH-CN">&nbsp;</span><span lang=
=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif;mso-fareast-language:ZH-CN">Yours Irrespectively,</=
span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p><=
/span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif;mso-fareast-language:ZH-CN">&nbsp;</span><span lang=
=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif;mso-fareast-language:ZH-CN">John</span><span lang=
=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif;mso-fareast-language:ZH-CN">&nbsp;</span><span lang=
=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif;mso-fareast-language:ZH-CN">&nbsp;</span><span lang=
=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0cm;text-a=
lign:center">
<span lang=3D"EN-US" style=3D"font-size:7.0pt;color:black;mso-fareast-langu=
age:ZH-CN">Juniper Business Use Only</span><span lang=3D"EN-US" style=3D"ms=
o-fareast-language:ZH-CN"><o:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><strong><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family=
:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">From:</span></s=
trong><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;Cali=
bri&quot;,sans-serif;mso-fareast-language:ZH-CN">
 Teas &lt;<a href=3D"mailto:teas-bounces@ietf.org">teas-bounces@ietf.org</a=
>&gt; <strong>
<span style=3D"font-family:&quot;Calibri&quot;,sans-serif">On Behalf Of </s=
pan></strong>Dongjie (Jimmy)<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Sent:</s=
pan></strong> Friday, August 13, 2021 9:20 AM<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">To:</spa=
n></strong> <a href=3D"mailto:EXT-vishnupavan@gmail.com">
EXT-vishnupavan@gmail.com</a> &lt;<a href=3D"mailto:vishnupavan@gmail.com">=
vishnupavan@gmail.com</a>&gt;; Adrian Farrel &lt;<a href=3D"mailto:adrian@o=
lddog.co.uk">adrian@olddog.co.uk</a>&gt;<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Cc:</spa=
n></strong> Tarek Saad &lt;<a href=3D"mailto:tsaad.net@gmail.com">tsaad.net=
@gmail.com</a>&gt;; TEAS WG &lt;<a href=3D"mailto:teas@ietf.org">teas@ietf.=
org</a>&gt;<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Subject:=
</span></strong> Re: [Teas] New term for the underlay construct used for sl=
ice realization</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH=
-CN"><o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&nbsp;<o=
:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:12.0pt;background:#FFEB9C">
<strong><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;La=
to&quot;,sans-serif;color:black;mso-fareast-language:ZH-CN">[External Email=
. Be cautious of content]</span></strong><span lang=3D"EN-US" style=3D"mso-=
fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif;mso-fareast-language:ZH-CN">&nbsp;</span><span lang=
=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Hi Pavan,
</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p=
></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Sorry for=
 chiming in, please see some comments inline:</span><span lang=3D"EN-US" st=
yle=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><strong><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family=
:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">From:</span></s=
trong><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;Cali=
bri&quot;,sans-serif;mso-fareast-language:ZH-CN">
 Teas [<a href=3D"mailto:teas-bounces@ietf.org">mailto:teas-bounces@ietf.or=
g</a>] <strong>
<span style=3D"font-family:&quot;Calibri&quot;,sans-serif">On Behalf Of </s=
pan></strong>Vishnu Pavan Beeram<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Sent:</s=
pan></strong> Friday, August 13, 2021 1:32 AM<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">To:</spa=
n></strong> Adrian Farrel &lt;<a href=3D"mailto:adrian@olddog.co.uk">adrian=
@olddog.co.uk</a>&gt;<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Cc:</spa=
n></strong> Tarek Saad &lt;<a href=3D"mailto:tsaad.net@gmail.com">tsaad.net=
@gmail.com</a>&gt;; TEAS WG &lt;<a href=3D"mailto:teas@ietf.org">teas@ietf.=
org</a>&gt;<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Subject:=
</span></strong> Re: [Teas] New term for the underlay construct used for sl=
ice realization</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH=
-CN"><o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&nbsp;<o=
:p></o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">** As a =
WG participant.. **<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><br>
Adrian, Hi!<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><br>
Thanks for your earlier emails in this thread that have helped drill down t=
he discussion to the specific item that needs a fresh term!<br>
Please see inline (prefixed VPB).<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><br>
-Pavan (as a WG participant)<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&nbsp;<o=
:p></o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">On Thu, =
Aug 12, 2021 at 10:05 AM Adrian Farrel &lt;<a href=3D"mailto:adrian@olddog.=
co.uk">adrian@olddog.co.uk</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-top:5.0pt;margin-right:0cm;margin-=
bottom:5.0pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">Thanks f=
or your useful opinion, Tarek.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">I have n=
o objection to the use of the word
</span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=B0</sp=
an><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">aggregate</spa=
n><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=B1</span><s=
pan lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">.
 It is generally used to express grouping together to treat as a single ent=
ity or to be treated in the same way.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">But I do=
 like
</span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=B0</sp=
an><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">foo aggregate<=
/span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=B1</spa=
n><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">
 to mean that a number of foo have been aggregated.<o:p></o:p></span></p>
</div>
</div>
</blockquote>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&nbsp;<o=
:p></o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">[VPB]&nb=
sp;But, that isn</span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:Z=
H-CN">=A1=AF</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN=
">t
 necessarily how IETF has been using the term </span><span lang=3D"ZH-CN" s=
tyle=3D"mso-fareast-language:ZH-CN">=A1=B0</span><span lang=3D"EN-US" style=
=3D"mso-fareast-language:ZH-CN">aggregate</span><span lang=3D"ZH-CN" style=
=3D"mso-fareast-language:ZH-CN">=A1=B1</span><span lang=3D"EN-US" style=3D"=
mso-fareast-language:ZH-CN">.
 &nbsp;</span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=
=B0</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">Behavio=
r Aggregate</span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN"=
>=A1=B1</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">
 (as defined in IETF) doesn</span><span lang=3D"ZH-CN" style=3D"mso-fareast=
-language:ZH-CN">=A1=AF</span><span lang=3D"EN-US" style=3D"mso-fareast-lan=
guage:ZH-CN">t mean aggregating behaviors. The same goes for
</span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=B0</sp=
an><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">Treatment Aggr=
egate</span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=
=B1</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">.
 Behavior Aggregate (the way we read/interpret it) is an aggregate with a s=
pecific behavior.&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 lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">[Jie] I j=
ust checked the definition of the =A1=B0aggregate=A1=B1 related
 terms in the RFCs:</span><span lang=3D"EN-US" style=3D"mso-fareast-languag=
e:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:4.8pt;text-indent:10.5pt">
<span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&qu=
ot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Behavior Aggregate=
 (defined in RFC 2474): a collection of packets with the same codepoint cro=
ssing a &nbsp;link in a particular direction.=A1=B1</span><span lang=3D"EN-=
US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:4.8pt;text-indent:10.5pt">
<span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&qu=
ot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</span><span=
 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:4.8pt;text-indent:10.5pt">
<span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&qu=
ot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Traffic Aggregate =
(defined in RFC 3086): a collection of packets with a codepoint that maps t=
o the same &nbsp;PHB, usually in a DS domain or some
 subset of a DS domain.</span><span lang=3D"EN-US" style=3D"mso-fareast-lan=
guage:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:4.8pt;text-indent:10.5pt">
<span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&qu=
ot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</span><span=
 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:4.8pt;text-indent:10.5pt">
<span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&qu=
ot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Treatment Aggregat=
e (defined in RFC 5127): This term is defined as the aggregate of Diffserv =
service &nbsp;classes.&nbsp; A treatment aggregate is concerned
 only with the forwarding treatment of the aggregated traffic, &nbsp;which =
may be marked with multiple DSCPs.</span><span lang=3D"EN-US" style=3D"mso-=
fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">My readin=
g of these definitions is that =A1=B0aggregate=A1=B1 here means
 either aggregated packets or aggregated service classes which are treated =
in the same &nbsp;way on a particular node or link.</span><span lang=3D"EN-=
US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">While wha=
t we want to describe with the new term IMO is =A1=B0a
 group of network resources allocated on a set of network nodes and links=
=A1=B1. Such group &nbsp;of resources can be provisioned in different place=
s of the network and are organized together to provide a specific network-l=
evel behavior.
</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p=
></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Thus the =
key information to be delivered with the new term
 is =A1=B0a group of organized resources in the network=A1=B1, rather than =
=A1=B0aggregated behavior at &nbsp;a particular point=A1=B1.</span><span la=
ng=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Best rega=
rds,</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p><=
/o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Jie</span=
><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></spa=
n></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-top:5.0pt;margin-right:0cm;margin-=
bottom:5.0pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">So
</span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=B0</sp=
an><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">slice aggregat=
e</span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=B1</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">
 would be an aggregation of slices. Your use in I-D.draft-bestbar-teas-ns-p=
acket is, therefore, confusing. If the slices are *<strong><span style=3D"f=
ont-family:SimSun">not</span></strong>* separated out into different flows =
(or traffic streams) then, yes, you
 are aggregating slices. But if the slices are separated out, as you descri=
be, &nbsp;then what you have is
</span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=B0</sp=
an><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">IETF network s=
lice traffic stream aggregation</span><span lang=3D"ZH-CN" style=3D"mso-far=
east-language:ZH-CN">=A1=B1</span><span lang=3D"EN-US" style=3D"mso-fareast=
-language:ZH-CN">.<o:p></o:p></span></p>
</div>
</div>
</blockquote>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&nbsp;<o=
:p></o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">[VPB]&nb=
sp;Yes. The definition of the slice aggregate (as defined in draft-bestbar-=
teas-ns-packet) does state that the&nbsp;slice aggregate&nbsp;comprises
 of one or more IETF network slice traffic streams.&nbsp; We could have cho=
sen a longer &nbsp;descriptive name, but opted to keep it short.<o:p></o:p>=
</span></p>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&nbsp;<o=
:p></o:p></span></p>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0c=
m 0cm 0cm 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-=
bottom:5.0pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=B0</=
span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">Network reso=
urce aggregate</span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-=
CN">=A1=B1</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">
 would imply that resources have been collected together to be used as a si=
ngle entity.<o:p></o:p></span></p>
</div>
</div>
</blockquote>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&nbsp;<o=
:p></o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">[VPB]&nb=
sp;Not necessarily. &quot;Network Resource Aggregate&quot; isn't meant to i=
mply &quot;aggregating network resources&quot;. The intent behind
 the&nbsp;proposal is to say that it is an aggregate that has specific netw=
ork resources.&nbsp;<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&nbsp;<o=
:p></o:p></span></p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">You migh=
t do that, for example, with a set of parallel links that can be aggregated=
 (or bundled) and treated as a single link.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">I don</s=
pan><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=AF</span>=
<span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">t
 think we are aggregating resources in this case. We are grouping, profilin=
g, partitioning, collecting, or even filtering.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">Adrian<o=
:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&nbsp;<o=
:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><strong><span lang=3D"EN-US" style=3D"font-family:SimSun;mso-farea=
st-language:ZH-CN">From:</span></strong><span lang=3D"EN-US" style=3D"mso-f=
areast-language:ZH-CN"> Tarek Saad &lt;<a href=3D"mailto:tsaad.net@gmail.co=
m" target=3D"_blank">tsaad.net@gmail.com</a>&gt;
<br>
<strong><span style=3D"font-family:SimSun">Sent:</span></strong> 12 August =
2021 15:41<br>
<strong><span style=3D"font-family:SimSun">To:</span></strong> <a href=3D"m=
ailto:adrian@olddog.co.uk" target=3D"_blank">
adrian@olddog.co.uk</a>; 'Kiran Makhijani' &lt;<a href=3D"mailto:kiran.ietf=
@gmail.com" target=3D"_blank">kiran.ietf@gmail.com</a>&gt;; 'John E Drake' =
&lt;jdrake=3D<a href=3D"mailto:40juniper.net@dmarc.ietf.org" target=3D"_bla=
nk">40juniper.net@dmarc.ietf.org</a>&gt;; &nbsp;'Dongjie (Jimmy)'
 &lt;<a href=3D"mailto:jie.dong@huawei.com" target=3D"_blank">jie.dong@huaw=
ei.com</a>&gt;; 'Lizhenbin' &lt;<a href=3D"mailto:lizhenbin@huawei.com" tar=
get=3D"_blank">lizhenbin@huawei.com</a>&gt;;
<a href=3D"mailto:teas@ietf.org" target=3D"_blank">teas@ietf.org</a><br>
<strong><span style=3D"font-family:SimSun">Subject:</span></strong> Re: [Te=
as] New term for the underlay construct used for slice realization<o:p></o:=
p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">Hi Adria=
n/all,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">As descr=
ibed in I-D.ietf-teas-ietf-network-slice-definition, an IETF Network Slice =
service may include multiple connections
 that associate sets of endpoints - &nbsp;each having a set of SLOs/SLEs.<o=
:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">In I-D.d=
raft-bestbar-teas-ns-packet, we defined a Slice Aggregate as a construct th=
at comprises of one or more IETF network
 slice traffic streams that share the &nbsp;same set of SLOs/SLEs.<o:p></o:=
p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">The Slic=
e Aggregate construct allows aggregating streams from multiple IETF Network=
 Slice connections that share common SLOs/SLEs
 so that the provider network &nbsp;can offer the same aggregate treatment =
to them. The Slice Aggregate resources are instantiated on specific network=
 elements as dictated by the Slice Aggregate topology.<o:p></o:p></span></p=
>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">Since th=
e scope of I-D.draft-bestbar-teas-ns-packet was the realization of IETF Net=
work Slice service in a provider network,
 we had constrained the aggregate &nbsp;construct to slices.<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">We under=
stand that the aggregate construct can be generalized to support other serv=
ices. Let us offer another option to consider
 for representing the generic &nbsp;construct: </span><span lang=3D"ZH-CN" =
style=3D"mso-fareast-language:ZH-CN">=A1=B0</span><span lang=3D"EN-US" styl=
e=3D"mso-fareast-language:ZH-CN">Network Resource Aggregate</span><span lan=
g=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=B1</span><span lang=3D=
"EN-US" style=3D"mso-fareast-language:ZH-CN">.
 There are multiple IETF documents that use the term Aggregate whenever gro=
uping multiple service classes (Behavior Aggregate, Treatment Aggregate, Tr=
affic Aggregate, &nbsp;etc.) - refer to rfc5127 and rfc2474 for more exampl=
es.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">Regards,=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">Tarek<o:=
p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&nbsp;<o=
:p></o:p></span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;margin-bottom:12.0p=
t;margin-left:36.0pt">
<strong><span lang=3D"EN-US" style=3D"font-family:SimSun;color:black;mso-fa=
reast-language:ZH-CN">From:
</span></strong><span lang=3D"EN-US" style=3D"color:black;mso-fareast-langu=
age:ZH-CN">Teas &lt;</span><span lang=3D"EN-US" style=3D"mso-fareast-langua=
ge:ZH-CN"><a href=3D"mailto:teas-bounces@ietf.org" target=3D"_blank">teas-b=
ounces@ietf.org</a><span style=3D"color:black">&gt;
 on behalf of Adrian &nbsp;Farrel &lt;</span><a href=3D"mailto:adrian@olddo=
g.co.uk" target=3D"_blank">adrian@olddog.co.uk</a><span style=3D"color:blac=
k">&gt;<br>
<strong><span style=3D"font-family:SimSun">Date: </span></strong>Wednesday,=
 August 11, 2021 at 3:38 PM<br>
<strong><span style=3D"font-family:SimSun">To: </span></strong>'Kiran Makhi=
jani' &lt;</span><a href=3D"mailto:kiran.ietf@gmail.com" target=3D"_blank">=
kiran.ietf@gmail.com</a><span style=3D"color:black">&gt;, 'John E Drake' &l=
t;</span><a href=3D"mailto:jdrake=3D40juniper.net@dmarc.ietf.org" target=3D=
"_blank">jdrake=3D40juniper.net@dmarc.ietf.org</a><span style=3D"color:blac=
k">&gt;,
 &nbsp;'Dongjie (Jimmy)' &lt;</span><a href=3D"mailto:jie.dong@huawei.com" =
target=3D"_blank">jie.dong@huawei.com</a><span style=3D"color:black">&gt;, =
'Lizhenbin' &lt;</span><a href=3D"mailto:lizhenbin@huawei.com" target=3D"_b=
lank">lizhenbin@huawei.com</a><span style=3D"color:black">&gt;,
</span><a href=3D"mailto:teas@ietf.org" target=3D"_blank">teas@ietf.org</a>=
<span style=3D"color:black"> &lt;</span><a href=3D"mailto:teas@ietf.org" ta=
rget=3D"_blank">teas@ietf.org</a><span style=3D"color:black">&gt;<br>
<strong><span style=3D"font-family:SimSun">Subject: </span></strong>Re: [Te=
as] New term for the underlay construct used for slice realization</span><o=
:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:36.0pt">
<span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">I wonder whether =
we can pick this apart and put it back together in a way<br>
that makes sense.<br>
<br>
The customer's view of all this is an &quot;IETF network slice service&quot=
;. I think<br>
(hope) we are all agreed on this. The customer may ask (in shorthand) for a=
<br>
&quot;network slice&quot;, but:<br>
- they are talking about IETF technology, so they asking for an &quot;IETF<=
br>
network slice&quot;<br>
- they actually want behavioural characteristics and have no right to tell<=
br>
the operator<br>
&nbsp; how to manage the network, so they are asking for an &quot;IETF netw=
ork slice<br>
service.&quot;<br>
<br>
The operator has a bigger set of things to worry about. <br>
<br>
1. At the top of the operator's view is the &quot;IETF network slice servic=
e&quot; as<br>
&nbsp;&nbsp;&nbsp; requested by the customer. We have this defined already,=
 so nothing more<br>
&nbsp;&nbsp;&nbsp; to say.<br>
<br>
2. The operator maps the request for a slice service into the &quot;IETF ne=
twork<br>
&nbsp;&nbsp;&nbsp; slice&quot; which is the expression of the service in te=
rms of network<br>
connectivity<br>
&nbsp;&nbsp;&nbsp; in the context of the operator's network. The relationsh=
ip here is like<br>
the<br>
&nbsp;&nbsp;&nbsp; relationship between the L3SM and L3NM.<br>
<br>
3. At the bottom of their view is an underlying network. The technology of<=
br>
this<br>
&nbsp;&nbsp; network depends, of course, on the operator's offering, but th=
is is the<br>
network<br>
&nbsp;&nbsp; technology being sliced. It may be an IP network, and MPLS net=
work, an<br>
OTN,<br>
&nbsp;&nbsp; or whatever. I would call this the &quot;Underlay Network.&quo=
t; This network may,<br>
in<br>
&nbsp;&nbsp; turn, be built upon an underlay network of the same or a diffe=
rent<br>
technology,<br>
&nbsp;&nbsp; and it may be facilitated through network slicing - but this n=
eed not<br>
concern<br>
&nbsp;&nbsp; us here. <br>
<br>
4. That leaves the glue in the middle: the bit that enables the scaling and=
<br>
maps<br>
&nbsp;&nbsp; the network slice to the network. And I think it is this bit t=
hat is<br>
causing the<br>
&nbsp;&nbsp; most debate about terminology. There are some points to consid=
er:<br>
<br>
&nbsp;&nbsp; a. The term &quot;network resources&quot; applies to the bandw=
idth, queues,<br>
buffers,<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; etc. available on the links and nodes =
in the network. That may be <br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; extended to refer to whole links and n=
odes.<br>
<br>
&nbsp;&nbsp; b. The number of IETF network slice services is potentially la=
rge and the<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; operator needs a mechanism to scale th=
e mapping of services to <br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; network resources.<br>
<br>
&nbsp;&nbsp; c. The IETF network slices may be grouped for identical treatm=
ent to<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; achieve scaling, where the grouping co=
llects IETF network slices with<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; similar SLAs.<br>
<br>
&nbsp;&nbsp; d. It may be that different traffic flows within a single IETF=
 network<br>
slice<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; have different characteristics. =
In this case, it may be beneficial<br>
to group<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; together some of the traffic flo=
ws from different slices.<br>
<br>
&nbsp;&nbsp; e. The grouped slices/flows are enabled in the network using n=
etwork<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; resources assigned for that purp=
ose. The assignment may be anything<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from a fully-fledged virtual net=
work (such as in ACTN or VPN+),<br>
through<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; network reserved resources (such=
 as in MPLS-TE), and centrally<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; accounted resources (such as SDN=
 or possible SR), to statistically<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; shared resources.<br>
<br>
There seems to be various points for and against 4d. But, it would appear<b=
r>
that this is an implementation or deployment issue that doesn't change what=
<br>
the protocols need to do. So we should probably allow it architecturally, o=
r<br>
at least, not disallow it.<br>
<br>
Of course, as Kiran points out, 4c/d/e may be a pass-through. That is, it i=
s<br>
not necessary to implement such groupings either because there are only a<b=
r>
few slices (which has been the view of some operators) or because the<br>
network systems can handle the number of slices. And it is in the nature of=
<br>
architectures of this sort that all functions can be nulled out without los=
s<br>
of generality, and we have to recall that the internals of provisioning<br>
systems may appear as functional blocks in our architectures, but we don't<=
br>
compel implementations to adhere to that type of architecture. So I don't<b=
r>
think we have to worry on that account.<br>
<br>
And that brings the question of how we name the resources that are gathered=
<br>
in 4e. <br>
<br>
I can't decide whether it is helpful to spend time saying why I don't like<=
br>
each of the proposed terms. I certainly have things I don't like about (for=
<br>
example) &quot;slice aggregate&quot; (because of 4d, which means it is real=
ly a &quot;slice<br>
sub-flow aggregate&quot;), and I am not a fan of &quot;VTN&quot; (because o=
f &quot;transport&quot;<br>
and maybe it is not really a network). But maybe it is better for me to say=
<br>
what I think we should call things? I think we have...<br>
<br>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IETF network slice service (customer =
view)<br>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IETF network slice (operator view)<br=
>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Resource partition (delivery mechanis=
m)<br>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Underlay network (network used to sup=
port the slice)<br>
<br>
Why &quot;resource partition&quot;? Well it is a collection of &quot;nodes,=
 links, and<br>
network resources that are marked within the network for use by a set of<br=
>
network slice traffic flows&quot;.<br>
It is possible that the word &quot;partition&quot; is too strong because it=
 may imply<br>
to some people that resources in a partition cannot be shared, but I don't<=
br>
feel that.<br>
Softer words than &quot;partition&quot; would be &quot;group&quot;, &quot;b=
undle&quot;, &quot;pool&quot;, and I<br>
could live with any of them.<br>
<br>
Best,<br>
Adrian<br>
<br>
<br>
-----Original Message-----<br>
From: Teas &lt;<a href=3D"mailto:teas-bounces@ietf.org" target=3D"_blank">t=
eas-bounces@ietf.org</a>&gt; On Behalf Of Kiran Makhijani<br>
Sent: 11 August 2021 16:00<br>
To: John E Drake &lt;<a href=3D"mailto:jdrake=3D40juniper.net@dmarc.ietf.or=
g" target=3D"_blank">jdrake=3D40juniper.net@dmarc.ietf.org</a>&gt;; Dongjie=
 (Jimmy)<br>
&lt;<a href=3D"mailto:jie.dong@huawei.com" target=3D"_blank">jie.dong@huawe=
i.com</a>&gt;; Lizhenbin &lt;<a href=3D"mailto:lizhenbin@huawei.com" target=
=3D"_blank">lizhenbin@huawei.com</a>&gt;;
<a href=3D"mailto:teas@ietf.org" target=3D"_blank">teas@ietf.org</a><br>
Subject: Re: [Teas] New term for the underlay construct used for slice<br>
realization<br>
<br>
Hi John, (and all),<br>
<br>
Two very basic clarification questions:<br>
1. How do we differentiate between&nbsp; the slice-segments that are <br>
resource-aware vs those that are not? I had assumed that since a slice <br>
has an SLO, it will need network resource allocations in some form.<br>
<br>
2. Is it ok to assume that the customer view of slice is an 'IETF <br>
network slice service' and the 'IETF slice realization' of that service <br=
>
in a provider network is raises the question of underlay and overlay <br>
constructs. Am I right?<br>
(a) if so, then we are acknowledging&nbsp; the presence of another layer of=
 <br>
abstraction (for realization). It could be underlay/overlay or <br>
aggregate/??. Then the term 'slice aggregate' is better and my <br>
preference, it is easier to see that different slice-services are <br>
aggregated into a single construct&nbsp; in a provider network. Use of <br>
underlay/overlay are confusing.<br>
(b) for a leaner provisioning, I would also prefer to see it documented <br=
>
that the aggregate is optional and it should be possible to directly map <b=
r>
a slice-service to physical or real resources in the network. <br>
specifically useful when a single domain is carving out slices for <br>
different purposes.<br>
<br>
Thanks<br>
Kiran<br>
<br>
<br>
------ Original Message ------<br>
From: &quot;John E Drake&quot; &lt;<a href=3D"mailto:jdrake=3D40juniper.net=
@dmarc.ietf.org" target=3D"_blank">jdrake=3D40juniper.net@dmarc.ietf.org</a=
>&gt;<br>
To: &quot;Dongjie (Jimmy)&quot; &lt;<a href=3D"mailto:jie.dong@huawei.com" =
target=3D"_blank">jie.dong@huawei.com</a>&gt;; &quot;Lizhenbin&quot;
<br>
&lt;<a href=3D"mailto:lizhenbin@huawei.com" target=3D"_blank">lizhenbin@hua=
wei.com</a>&gt;; &quot;<a href=3D"mailto:teas@ietf.org" target=3D"_blank">t=
eas@ietf.org</a>&quot; &lt;<a href=3D"mailto:teas@ietf.org" target=3D"_blan=
k">teas@ietf.org</a>&gt;<br>
Sent: 8/11/2021 5:38:05 AM<br>
Subject: Re: [Teas] New term for the underlay construct used for slice <br>
realization<br>
<br>
&gt;Jimmy,<br>
&gt;<br>
&gt;Snipped, comments inline.<br>
&gt;<br>
&gt;Yours Irrespectively,<br>
&gt;<br>
&gt;John<br>
&gt;<br>
&gt;<br>
&gt;Juniper Business Use Only<br>
&gt;<br>
&gt;&gt;&nbsp; -----Original Message-----<br>
&gt;&gt;&nbsp; From: Dongjie (Jimmy) &lt;<a href=3D"mailto:jie.dong@huawei.=
com" target=3D"_blank">jie.dong@huawei.com</a>&gt;<br>
&gt;&gt;&nbsp; Sent: Tuesday, August 10, 2021 11:03 PM<br>
&gt;&gt;&nbsp; To: John E Drake &lt;<a href=3D"mailto:jdrake@juniper.net" t=
arget=3D"_blank">jdrake@juniper.net</a>&gt;; Lizhenbin &lt;<a href=3D"mailt=
o:lizhenbin@huawei.com" target=3D"_blank">lizhenbin@huawei.com</a>&gt;;<br>
&gt;&gt;<a href=3D"mailto:teas@ietf.org" target=3D"_blank">teas@ietf.org</a=
><br>
&gt;&gt;&nbsp; Subject: RE: New term for the underlay construct used for sl=
ice<br>
realization<br>
&gt;&gt;<br>
&gt;&gt;&nbsp; [External Email. Be cautious of content]<br>
&gt;&gt;<br>
&gt;underlay construct for network slice realization bound to<br>
&gt;&gt;&nbsp; &gt; &gt; network slice services? That is, is the underlay c=
onstruct only for<br>
&gt;&gt;&nbsp; &gt; &gt; use in network slicing, or should it be generalize=
d for more<br>
possible uses?<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; [JD] Absolutely yes<br>
&gt;&gt;<br>
&gt;&gt;&nbsp; [Jie] I guess you mean &quot;Yes&quot; to the latter case, w=
hich is &quot;it should be<br>
generalized<br>
&gt;&gt;&nbsp; for more possible uses&quot;, is my understanding correct?<b=
r>
&gt;<br>
&gt;[JD]&nbsp; Yes to the latter<br>
&gt;<br>
&gt;&gt;<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; 2.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; If the answer to =
question 1 is YES, should it reflect the<br>
following<br>
&gt;&gt;&nbsp; &gt; &gt; characteristics?<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; a.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; It is about the u=
nderlay<br>
&gt;&gt;&nbsp; &gt; &gt; b.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; It is about the p=
artitioned resources used to deliver the<br>
network slice<br>
&gt;&gt;&nbsp; &gt; &gt; services<br>
&gt;&gt;&nbsp; &gt; &gt; c.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; It allows the 1:1=
, N:1, and 1:N mapping models between the<br>
network<br>
&gt;&gt;&nbsp; &gt; slice<br>
&gt;&gt;&nbsp; &gt; &gt; services and the underlay construct. The 1:1 and N=
:1 mapping may be<br>
&gt;&gt;&nbsp; &gt; &gt; straightforward. Does it also make sense to divide=
 the elements or<br>
&gt;&gt;&nbsp; &gt; &gt; traffic flows in a single network slice service to=
 carry them in<br>
&gt;&gt;&nbsp; &gt; &gt; different<br>
&gt;&gt;&nbsp; &gt; underlay constructs?<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; [JD]&nbsp; Yes to all of the above.&nbsp; Please see:<b=
r>
&gt;&gt;&nbsp; &gt; <a href=3D"https://urldefense.com/v3/__https:/datatrack=
er.ietf.org/doc/html/draf" target=3D"_blank">
https://urldefense.com/v3/__https://datatracker.ietf.org/doc/html/draf</a><=
br>
&gt;&gt;&nbsp; &gt; t-drake-bess-enhanced-vpn-06__;!!NEt6yMaO-<br>
&gt;&gt;&nbsp; gk!TCiJHCZCwFgwpuFoujxVlZ4r9<br>
&gt;&gt;&nbsp; &gt; F6mLpE4nJ-9zpqkY-kls-ROxL4C2_xNaR2ImI4$<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; Lastly, here are some candidates of the &quot;new =
term&quot;:<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; Option 1: The network slice service is called &quo=
t;overlay slice&quot;, then<br>
&gt;&gt;&nbsp; &gt; &gt; the underlay construct is called &quot;underlay sl=
ice&quot;.<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; Option 2: The network slice service is called &quo=
t;service slice&quot;, then<br>
&gt;&gt;&nbsp; &gt; &gt; the underlay construct is called &quot;resource sl=
ice&quot;.<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; [JD]&nbsp; I don't think we need another term for what =
we are already<br>
&gt;&gt;&nbsp; &gt; calling an 'IETF Network Slice Service'.&nbsp; Adrian a=
nd I are considering<br>
&gt;&gt;&nbsp; &gt; the term 'resource partition' to describe the partition=
ing of underlay<br>
&gt;&gt;&nbsp; &gt; network resources in support of various overlay service=
s such as IETF<br>
Network<br>
&gt;&gt;&nbsp; Slice Services.<br>
&gt;&gt;&nbsp; &gt; This is congruent with the ideas expressed in:<br>
&gt;&gt;&nbsp; &gt; <a href=3D"https://urldefense.com/v3/__https:/datatrack=
er.ietf.org/doc/html/draf" target=3D"_blank">
https://urldefense.com/v3/__https://datatracker.ietf.org/doc/html/draf</a><=
br>
&gt;&gt;&nbsp; &gt; t-ietf-spring-resource-aware-segmen__;!!NEt6yMaO-<br>
&gt;&gt;&nbsp; gk!TCiJHCZCwFgwpuFouj<br>
&gt;&gt;&nbsp; &gt; xVlZ4r9F6mLpE4nJ-9zpqkY-kls-ROxL4C2_xNxEfwaXg$<br>
&gt;&gt;&nbsp; &gt; ts-03.&nbsp; What this allows one to build is an 'parti=
tioned underlay<br>
&gt;&gt;&nbsp; &gt; network topology'.<br>
&gt;&gt;<br>
&gt;&gt;&nbsp; [Jie] Agree that here we are talking about the term for the =
underlay<br>
construct.<br>
&gt;&gt;&nbsp; &quot;Resource partition&quot; captures one of its key chara=
cteristics, while IMO<br>
another<br>
&gt;&gt;&nbsp; thing the term needs to reflect is that the resource partiti=
on is needed<br>
on a<br>
&gt;&gt;&nbsp; subset of the links and nodes (rather than on a single node =
or link) in<br>
the physical<br>
&gt;&gt;&nbsp; network, which together builds a logical network topology.<b=
r>
&gt;<br>
&gt;[JD]&nbsp; In my initial email, above, I was proposing 'partitioned und=
erlay<br>
network topology'<br>
&gt;<br>
&gt;&gt;<br>
&gt;&gt;&nbsp; Best regards,<br>
&gt;&gt;&nbsp; Jie<br>
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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           : SR Replication Segment for Multi-point Service Delivery
        Authors         : Daniel Voyer (editor)
                          Clarence Filsfils
                          Rishabh Parekh
                          Hooman Bidgoli
                          Zhaohui Zhang
	Filename        : draft-ietf-spring-sr-replication-segment-05.txt
	Pages           : 13
	Date            : 2021-08-20

Abstract:
   This document describes the SR Replication segment for Multi-point
   service delivery.  A SR Replication segment allows a packet to be
   replicated from a Replication Node to downstream nodes.



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

There is also an htmlized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-spring-sr-replication-segment-05

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-spring-sr-replication-segment-05


Internet-Drafts are also available by anonymous FTP at:
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Dear WG:

This WGLC has now ended. The chairs will announce a decision on the next st=
eps shortly.

Thanks!

Jim, Joel & Bruno

From: James Guichard <james.n.guichard@futurewei.com>
Sent: Wednesday, July 7, 2021 11:49 AM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: WGLC for https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-p=
ath-segment/

Dear WG:

This email starts a 2 week Working Group Last Call for draft-ietf-spring-mp=
ls-path-segment [1].

Please read this document if you haven't read the most recent version and s=
end your comments to the SPRING WG list no later than July 21st 2021.

If you are raising a point which you expect will be specifically debated on=
 the mailing list, consider using a specific email/thread for this point.

Lastly, if you are an author or contributor please response to indicate whe=
ther you know of any undisclosed IPR related to this document.

Thanks!

Jim, Joel & Bruno

[1] https://datatracker.ietf.org/doc/draft-ietf-spring-mpls-path-segment/<h=
ttps://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fdatatrac=
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<p class=3D"MsoNormal">Dear WG:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">This WGLC has now ended. The chairs will announce a =
decision on the next steps shortly.<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"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Jim, Joel &amp; Bruno<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 0in =
0in 0in">
<p class=3D"MsoNormal"><b>From:</b> James Guichard &lt;james.n.guichard@fut=
urewei.com&gt;
<br>
<b>Sent:</b> Wednesday, July 7, 2021 11:49 AM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> WGLC for https://datatracker.ietf.org/doc/draft-ietf-spring=
-mpls-path-segment/<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Dear WG:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">This email starts a 2 week Working Group Last Call f=
or draft-ietf-spring-mpls-path-segment [1].<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Please read this document if you haven&#8217;t read =
the most recent version and send your comments to the SPRING WG list no lat=
er than July 21<sup>st</sup> 2021.
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span style=3D"color:#212529">If you are raising a p=
oint which you expect will be specifically debated on the mailing list, con=
sider using a specific email/thread for this point.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#212529"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#212529">Lastly, if you are an =
author or contributor please response to indicate whether you know of any u=
ndisclosed IPR related to this document.
<o:p></o:p></span></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"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Jim, Joel &amp; Bruno<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal" style=3D"background:white"><span style=3D"color:blac=
k">[1] <a href=3D"https://nam11.safelinks.protection.outlook.com/?url=3Dhtt=
ps%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-ietf-spring-mpls-path-segment=
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From nobody Fri Aug 20 12:18:07 2021
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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Thank you to everyone who has replied to our request for WG feedback. As 
soon as the chairs have had a chance to consult, we will let you know 
what the next steps are.

Yours
Joel, Jim, and Bruno

On 8/4/2021 2:52 PM, Joel M. Halpern wrote:
> The SPRING Working Group Chairs thank the design team for their efforts 
> on the requirements and analysis drafts.Â  The question of how the 
> working group wants to progress that part of the work will be the topic 
> for a separate email a bit later.
> 
> Right now, we are hearing the discussion about how many solutions, and 
> the perspectives being expressed.Â  While the topic was well-raised, the 
> discussion to date has not been structured in a way that makes clear to 
> everyone what the purpose is.Â  In particular, the chairs have decided to 
> re-ask the question.Â  We ask that even those who have responded in the 
> discussion respond to this thread.Â  Preferably with both what their 
> opinion is and an explanation of why.
> 
> The question we are asking you to comment on is:
> 
> Should the working group standardize one data plane behavior for 
> compressing SRv6 information?
> 
> Please speak up.Â  We are looking to collect responses until close of 
> business PDT on 20-August-2021.
> 
> Thank you,
> Joel, Jim, and Bruno
> 
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring


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From: Haoyu Song <haoyu.song@futurewei.com>
To: James Guichard <james.n.guichard@futurewei.com>, "Joel M. Halpern" <jmh@joelhalpern.com>, "spring@ietf.org" <spring@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/3zKRhfhP0EiJkZLzFkTYyG98uhc>
Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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SPRING WG,

I support a single standard for SR compression from the perspective of syst=
em design (both hardware and software). I have reviewed the solution drafts=
 and believe CSID should be standardized. Thanks!

Haoyu

-----Original Message-----
From: spring <spring-bounces@ietf.org> On Behalf Of James Guichard
Sent: Tuesday, August 17, 2021 1:28 PM
To: Joel M. Halpern <jmh@joelhalpern.com>; spring@ietf.org
Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression

Dear WG:

If you have not already done so please do provide your comments to the mail=
ing list as soon as possible.=20

Thanks!

Jim, Joel & Bruno

-----Original Message-----
From: spring <spring-bounces@ietf.org> On Behalf Of Joel M. Halpern
Sent: Wednesday, August 4, 2021 2:52 PM
To: spring@ietf.org
Subject: [spring] Progressing Standardizing SR over IPv6 compression

The SPRING Working Group Chairs thank the design team for their efforts on =
the requirements and analysis drafts.  The question of how the working grou=
p wants to progress that part of the work will be the topic for a separate =
email a bit later.

Right now, we are hearing the discussion about how many solutions, and the =
perspectives being expressed.  While the topic was well-raised, the discuss=
ion to date has not been structured in a way that makes clear to everyone w=
hat the purpose is.  In particular, the chairs have decided to re-ask the q=
uestion.  We ask that even those who have responded in the discussion respo=
nd to this thread.  Preferably with both what their opinion is and an expla=
nation of why.

The question we are asking you to comment on is:

Should the working group standardize one data plane behavior for compressin=
g SRv6 information?

Please speak up.  We are looking to collect responses until close of busine=
ss PDT on 20-August-2021.

Thank you,
Joel, Jim, and Bruno

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From: "Voyer, Daniel" <daniel.voyer@bell.ca>
To: Haoyu Song <haoyu.song@futurewei.com>, James Guichard <james.n.guichard@futurewei.com>, "Joel M. Halpern" <jmh@joelhalpern.com>, "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [EXT]Re: [spring] Progressing Standardizing SR over IPv6 compression
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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From: Gyan Mishra <hayabusagsm@gmail.com>
Date: Sat, 21 Aug 2021 01:08:47 -0400
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To: "Dongjie (Jimmy)" <jie.dong@huawei.com>
Cc: James Guichard <james.n.guichard@futurewei.com>, "Joel M. Halpern" <jmh@joelhalpern.com>,  "spring@ietf.org" <spring@ietf.org>
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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Dear Chairs

+1 on the high cost to implementations of multiple SRv6 compression
solutions and major issue for operators on interoperability.

On Wed, Aug 18, 2021 at 9:16 PM Dongjie (Jimmy) <jie.dong@huawei.com> wrote:

> Dear chairs,
>
> I believe the WG should standardize a single data plane solution.
>
> I fully agree with Dhruv that the cost of multiple data plane for SRv6
> compression would be unaffordable and the interoperable deployment would
> suffer from it.
>
> Best regards,
> Jie
>
> > -----Original Message-----
> > From: spring [mailto:spring-bounces@ietf.org] On Behalf Of James
> Guichard
> > Sent: Wednesday, August 18, 2021 4:28 AM
> > To: Joel M. Halpern <jmh@joelhalpern.com>; spring@ietf.org
> > Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
> >
> > Dear WG:
> >
> > If you have not already done so please do provide your comments to the
> > mailing list as soon as possible.
> >
> > Thanks!
> >
> > Jim, Joel & Bruno
> >
> > -----Original Message-----
> > From: spring <spring-bounces@ietf.org> On Behalf Of Joel M. Halpern
> > Sent: Wednesday, August 4, 2021 2:52 PM
> > To: spring@ietf.org
> > Subject: [spring] Progressing Standardizing SR over IPv6 compression
> >
> > The SPRING Working Group Chairs thank the design team for their efforts
> on
> > the requirements and analysis drafts.  The question of how the working
> > group wants to progress that part of the work will be the topic for a
> separate
> > email a bit later.
> >
> > Right now, we are hearing the discussion about how many solutions, and
> the
> > perspectives being expressed.  While the topic was well-raised, the
> > discussion to date has not been structured in a way that makes clear to
> > everyone what the purpose is.  In particular, the chairs have decided to
> > re-ask the question.  We ask that even those who have responded in the
> > discussion respond to this thread.  Preferably with both what their
> opinion
> > is and an explanation of why.
> >
> > The question we are asking you to comment on is:
> >
> > Should the working group standardize one data plane behavior for
> > compressing SRv6 information?
> >
> > Please speak up.  We are looking to collect responses until close of
> business
> > PDT on 20-August-2021.
> >
> > Thank you,
> > Joel, Jim, and Bruno
> >
> > _______________________________________________
> > spring mailing list
> > spring@ietf.org
> > https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fww
> > w.ietf.org%2Fmailman%2Flistinfo%2Fspring&amp;data=04%7C01%7Cjames.
> > n.guichard%40futurewei.com%7C250776c6aff74c568c8a08d957790ab9%7C
> > 0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637636999654946952
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> >
> > _______________________________________________
> > 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
>
-- 

<http://www.verizon.com/>

*Gyan Mishra*

*Network Solutions A**rchitect *

*Email gyan.s.mishra@verizon.com <gyan.s.mishra@verizon.com>*



*M 301 502-1347*

--0000000000000983a505ca0ac81c
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div><br></div><div dir=3D"auto">Dear Chairs</div><div dir=3D"auto"><br></d=
iv><div dir=3D"auto">+1 on the high cost to implementations of multiple SRv=
6 compression solutions and major issue for operators on interoperability.<=
/div><div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_at=
tr">On Wed, Aug 18, 2021 at 9:16 PM Dongjie (Jimmy) &lt;<a href=3D"mailto:j=
ie.dong@huawei.com">jie.dong@huawei.com</a>&gt; wrote:<br></div><blockquote=
 class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left-width:=
1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,=
204)">Dear chairs, <br>
<br>
I believe the WG should standardize a single data plane solution. <br>
<br>
I fully agree with Dhruv that the cost of multiple data plane for SRv6 comp=
ression would be unaffordable and the interoperable deployment would suffer=
 from it. <br>
<br>
Best regards,<br>
Jie<br>
<br>
&gt; -----Original Message-----<br>
&gt; From: spring [mailto:<a href=3D"mailto:spring-bounces@ietf.org" target=
=3D"_blank">spring-bounces@ietf.org</a>] On Behalf Of James Guichard<br>
&gt; Sent: Wednesday, August 18, 2021 4:28 AM<br>
&gt; To: Joel M. Halpern &lt;<a href=3D"mailto:jmh@joelhalpern.com" target=
=3D"_blank">jmh@joelhalpern.com</a>&gt;; <a href=3D"mailto:spring@ietf.org"=
 target=3D"_blank">spring@ietf.org</a><br>
&gt; Subject: Re: [spring] Progressing Standardizing SR over IPv6 compressi=
on<br>
&gt; <br>
&gt; Dear WG:<br>
&gt; <br>
&gt; If you have not already done so please do provide your comments to the=
<br>
&gt; mailing list as soon as possible.<br>
&gt; <br>
&gt; Thanks!<br>
&gt; <br>
&gt; Jim, Joel &amp; Bruno<br>
&gt; <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 Joel M. Halpern<br>
&gt; Sent: Wednesday, August 4, 2021 2:52 PM<br>
&gt; To: <a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.o=
rg</a><br>
&gt; Subject: [spring] Progressing Standardizing SR over IPv6 compression<b=
r>
&gt; <br>
&gt; The SPRING Working Group Chairs thank the design team for their effort=
s on<br>
&gt; the requirements and analysis drafts.=C2=A0 The question of how the wo=
rking<br>
&gt; group wants to progress that part of the work will be the topic for a =
separate<br>
&gt; email a bit later.<br>
&gt; <br>
&gt; Right now, we are hearing the discussion about how many solutions, and=
 the<br>
&gt; perspectives being expressed.=C2=A0 While the topic was well-raised, t=
he<br>
&gt; discussion to date has not been structured in a way that makes clear t=
o<br>
&gt; everyone what the purpose is.=C2=A0 In particular, the chairs have dec=
ided to<br>
&gt; re-ask the question.=C2=A0 We ask that even those who have responded i=
n the<br>
&gt; discussion respond to this thread.=C2=A0 Preferably with both what the=
ir opinion<br>
&gt; is and an explanation of why.<br>
&gt; <br>
&gt; The question we are asking you to comment on is:<br>
&gt; <br>
&gt; Should the working group standardize one data plane behavior for<br>
&gt; compressing SRv6 information?<br>
&gt; <br>
&gt; Please speak up.=C2=A0 We are looking to collect responses until close=
 of business<br>
&gt; PDT on 20-August-2021.<br>
&gt; <br>
&gt; Thank you,<br>
&gt; Joel, Jim, and Bruno<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://nam11.safelinks.protection.outlook.com/?url=3Dhttps=
%3A%2F%2Fww" rel=3D"noreferrer" target=3D"_blank">https://nam11.safelinks.p=
rotection.outlook.com/?url=3Dhttps%3A%2F%2Fww</a><br>
&gt; <a href=3D"http://w.ietf.org" rel=3D"noreferrer" target=3D"_blank">w.i=
etf.org</a>%2Fmailman%2Flistinfo%2Fspring&amp;amp;data=3D04%7C01%7Cjames.<b=
r>
&gt; n.guichard%<a href=3D"http://40futurewei.com" rel=3D"noreferrer" targe=
t=3D"_blank">40futurewei.com</a>%7C250776c6aff74c568c8a08d957790ab9%7C<br>
&gt; 0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637636999654946952<br>
&gt; %7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiL<br>
&gt; CJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;amp;sdata=3DJyUjJng7gmClXGUs<=
br>
&gt; Ll9AV6YWYWLQUFpmTPud8%2F0LRWE%3D&amp;amp;reserved=3D0<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></div>-- <br><div dir=3D"ltr" class=3D"gmail_signature" =
data-smartmail=3D"gmail_signature"><div dir=3D"ltr"><div dir=3D"ltr"><div d=
ir=3D"ltr"><div dir=3D"ltr"><div dir=3D"ltr"><div dir=3D"ltr"><div dir=3D"l=
tr"><div><p style=3D"color:rgb(34,34,34)"><a href=3D"http://www.verizon.com=
/" style=3D"color:rgb(17,85,204);padding-bottom:1em;display:inline-block" t=
arget=3D"_blank"><img src=3D"http://ss7.vzw.com/is/image/VerizonWireless/vz=
-logo-email" width=3D"81" height=3D"18" style=3D"height:18px;width:81px"></=
a><br></p><p style=3D"font-size:1em;margin:0px;font-family:&quot;Verizon NH=
G DS&quot;,Arial,sans-serif;line-height:13px;color:black"><b>Gyan Mishra</b=
></p><p style=3D"color:rgb(34,34,34);margin:0px;line-height:13px"><font fac=
e=3D"georgia, serif" style=3D"color:black;font-size:1em"><i>Network Solutio=
ns A</i></font><font color=3D"#000000" face=3D"georgia, serif"><i>rchitect=
=C2=A0</i></font></p><p style=3D"color:rgb(34,34,34);margin:0px;line-height=
:13px"><i style=3D"color:rgb(0,0,0);font-size:13px"><font face=3D"georgia, =
serif">Email <a href=3D"mailto:gyan.s.mishra@verizon.com" target=3D"_blank"=
>gyan.s.mishra@verizon.com</a></font></i><font color=3D"#000000" face=3D"ge=
orgia, serif"><i><br></i></font></p><p style=3D"font-size:1em;margin:0px;li=
ne-height:13px;color:black"><i><font face=3D"georgia, serif">M 301 502-1347=
<br><br></font></i></p></div><div><br></div></div></div></div></div></div><=
/div></div></div>

--0000000000000983a505ca0ac81c--


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Subject: [spring] I-D Action: draft-ietf-spring-mpls-path-segment-05.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-05.txt
	Pages           : 14
	Date            : 2021-08-21

Abstract:
   A Segment Routing (SR) path is identified by an SR segment list.
   Only the complete segment list can identify the end-to-end SR path,
   and a sub-set of segments from the segment list cannot distinguish
   one SR path from another as they may be partially congruent.  SR path
   identification is a pre-requisite for various use-cases such as
   Performance Measurement (PM), bidirectional paths correlation, and
   end-to-end 1+1 path protection.

   In SR for MPLS data plane (SR-MPLS), the segment identifiers are
   stripped from the packet through label popping as the packet transits
   the network.  This means that when a packet reaches the egress of the
   SR path, it is not possible to determine on which SR path it
   traversed the network.

   This document defines a new type of segment that is referred to as
   Path Segment, which is used to identify an SR path in an SR-MPLS
   network.  When used, it is inserted by the ingress node of the SR
   path and immediately follows the last segment identifier in the
   segment list of the SR path.  The Path Segment will not be popped off
   until it reaches the egress node of the SR path.  The Path Segment
   then can be used by the egress node to implement SR path
   identification and correlation.


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

There is also an htmlized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-spring-mpls-path-segment-05

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-spring-mpls-path-segment-05


Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/



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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/QAu6QDjXRxijk6jkiHlp1GPXgR8>
Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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Hi chairs, I=92m just catching up on SPRING after a few weeks away for summ=
er vacation.

Yes we should standardize one SRv6 compression proposal. CSID meets the req=
uirements and I would like to see it adopted.

Darren
________________________________
From: spring <spring-bounces@ietf.org> on behalf of Joel M. Halpern <jmh@jo=
elhalpern.com>
Sent: Wednesday, August 4, 2021 2:53 PM
To: spring@ietf.org
Subject: [spring] Progressing Standardizing SR over IPv6 compression

The SPRING Working Group Chairs thank the design team for their efforts
on the requirements and analysis drafts.  The question of how the
working group wants to progress that part of the work will be the topic
for a separate email a bit later.

Right now, we are hearing the discussion about how many solutions, and
the perspectives being expressed.  While the topic was well-raised, the
discussion to date has not been structured in a way that makes clear to
everyone what the purpose is.  In particular, the chairs have decided to
re-ask the question.  We ask that even those who have responded in the
discussion respond to this thread.  Preferably with both what their
opinion is and an explanation of why.

The question we are asking you to comment on is:

Should the working group standardize one data plane behavior for
compressing SRv6 information?

Please speak up.  We are looking to collect responses until close of
business PDT on 20-August-2021.

Thank you,
Joel, Jim, and Bruno

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

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252">
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<body>
<div dir=3D"ltr">
<div></div>
<div>
<div>Hi chairs, I=92m just catching up on SPRING after a few weeks away for=
 summer vacation.&nbsp;</div>
<div dir=3D"ltr"><br>
</div>
<div>Yes we should standardize one SRv6 compression proposal.&nbsp;<span st=
yle=3D"font-size: inherit;">CSID meets the requirements and I would like to=
 see it adopted.</span></div>
<div dir=3D"ltr"><br>
</div>
<div dir=3D"ltr">Darren</div>
<div id=3D"ms-outlook-mobile-signature" dir=3D"ltr">
<div></div>
</div>
</div>
<div id=3D"id-350a2933-0fc1-482c-8a57-a6a389a5caf1" class=3D"ms-outlook-mob=
ile-reference-message">
<hr style=3D"display: inline-block; width: 98%; font-family: -webkit-standa=
rd; font-size: 12pt; color: rgb(0, 0, 0);" tabindex=3D"-1">
<div id=3D"divRplyFwdMsg" dir=3D"ltr"><font face=3D"Calibri, sans-serif"><b=
>From:</b> spring &lt;spring-bounces@ietf.org&gt; on behalf of Joel M. Halp=
ern &lt;jmh@joelhalpern.com&gt;<br>
<b>Sent:</b> Wednesday, August 4, 2021 2:53 PM<br>
<b>To:</b> spring@ietf.org<br>
<b>Subject:</b> [spring] Progressing Standardizing SR over IPv6 compression
<div>&nbsp;</div>
</font></div>
<meta name=3D"Generator" content=3D"Microsoft Exchange Server">
<!-- converted from text --><font size=3D"2"><span style=3D"font-size:11pt;=
">
<div class=3D"PlainText">The SPRING Working Group Chairs thank the design t=
eam for their efforts
<br>
on the requirements and analysis drafts.&nbsp; The question of how the <br>
working group wants to progress that part of the work will be the topic <br=
>
for a separate email a bit later.<br>
<br>
Right now, we are hearing the discussion about how many solutions, and <br>
the perspectives being expressed.&nbsp; While the topic was well-raised, th=
e <br>
discussion to date has not been structured in a way that makes clear to <br=
>
everyone what the purpose is.&nbsp; In particular, the chairs have decided =
to <br>
re-ask the question.&nbsp; We ask that even those who have responded in the=
 <br>
discussion respond to this thread.&nbsp; Preferably with both what their <b=
r>
opinion is and an explanation of why.<br>
<br>
The question we are asking you to comment on is:<br>
<br>
Should the working group standardize one data plane behavior for <br>
compressing SRv6 information?<br>
<br>
Please speak up.&nbsp; We are looking to collect responses until close of <=
br>
business PDT on 20-August-2021.<br>
<br>
Thank you,<br>
Joel, Jim, and Bruno<br>
<br>
_______________________________________________<br>
spring mailing list<br>
spring@ietf.org<br>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring">https://www.ietf.o=
rg/mailman/listinfo/spring</a><br>
</div>
</span></font></div>
</div>
</body>
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From: "Dongjie (Jimmy)" <jie.dong@huawei.com>
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Thread-Topic: [Teas] More Discussion//RE: Re:Re: New term for the underlay construct used for slice realization
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Subject: Re: [spring] [Teas] More Discussion//RE: Re:Re: New term for the underlay construct used for slice realization
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</head>
<body lang=3D"ZH-CN" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Hi,
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Please see comments in=
line with [Jie]:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><a name=3D"_MailEndCompose"><span lang=3D"EN-US" sty=
le=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F=
497D"><o:p>&nbsp;</o:p></span></a></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"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,sans-serif">From:</span></b><span lang=3D"EN-=
US" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif"> =
Tarek Saad [mailto:tsaad.net@gmail.com]
<br>
<b>Sent:</b> Saturday, August 21, 2021 1:05 AM<br>
<b>To:</b> John E Drake &lt;jdrake@juniper.net&gt;; Lizhenbin &lt;lizhenbin=
@huawei.com&gt;; TEAS WG &lt;teas@ietf.org&gt;<br>
<b>Cc:</b> Dongjie (Jimmy) &lt;jie.dong@huawei.com&gt;; spring@ietf.org; mp=
ls@ietf.org;
</span><span style=3D"font-size:11.0pt">=B9=A8=C1=A2=D1=DE</span><span lang=
=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-s=
erif"> &lt;gongliyan@chinamobile.com&gt;; draft-filsfils-sprin &lt;draft-fi=
lsfils-spring-srv6-stateless-slice-id@ietf.org&gt;; draft-ali-teas-sprin &l=
t;draft-ali-teas-spring-ns-building-blocks@ietf.org&gt;;
 EXT-vishnupavan@gmail.com &lt;vishnupavan@gmail.com&gt;; Adrian Farrel &lt=
;adrian@olddog.co.uk&gt;; draft-decraene-mpls- &lt;draft-decraene-mpls-slid=
-encoded-entropy-label-id@ietf.org&gt;<br>
<b>Subject:</b> Re: [Teas] More Discussion//RE: Re:Re: New term for the und=
erlay construct used for slice realization<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D"font-size:14.0pt;font-=
family:&quot;Calibri&quot;,sans-serif">Hi,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D"font-size:14.0pt;font-=
family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D"font-size:14.0pt;font-=
family:&quot;Calibri&quot;,sans-serif">Comments inline..<o:p></o:p></span><=
/p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D"font-size:14.0pt;font-=
family:&quot;Calibri&quot;,sans-serif"><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 lang=3D"EN-C=
A" style=3D"color:black">From:
</span></b><span lang=3D"EN-CA" style=3D"color:black">John E Drake &lt;<a h=
ref=3D"mailto:jdrake@juniper.net">jdrake@juniper.net</a>&gt;<br>
<b>Date: </b>Friday, August 20, 2021 at 9:33 AM<br>
<b>To: </b>Lizhenbin &lt;<a href=3D"mailto:lizhenbin@huawei.com">lizhenbin@=
huawei.com</a>&gt;, TEAS WG &lt;<a href=3D"mailto:teas@ietf.org">teas@ietf.=
org</a>&gt;<br>
<b>Cc: </b>Dongjie (Jimmy) &lt;<a href=3D"mailto:jie.dong@huawei.com">jie.d=
ong@huawei.com</a>&gt;,
<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a> &lt;<a href=3D"mailt=
o:spring@ietf.org">spring@ietf.org</a>&gt;,
<a href=3D"mailto:mpls@ietf.org">mpls@ietf.org</a> &lt;<a href=3D"mailto:mp=
ls@ietf.org">mpls@ietf.org</a>&gt;,
</span><span style=3D"color:black">=B9=A8=C1=A2=D1=DE<span lang=3D"EN-CA"> =
&lt;<a href=3D"mailto:gongliyan@chinamobile.com">gongliyan@chinamobile.com<=
/a>&gt;, draft-filsfils-sprin &lt;<a href=3D"mailto:draft-filsfils-spring-s=
rv6-stateless-slice-id@ietf.org">draft-filsfils-spring-srv6-stateless-slice=
-id@ietf.org</a>&gt;,
 draft-ali-teas-sprin &lt;<a href=3D"mailto:draft-ali-teas-spring-ns-buildi=
ng-blocks@ietf.org">draft-ali-teas-spring-ns-building-blocks@ietf.org</a>&g=
t;,
<a href=3D"mailto:EXT-vishnupavan@gmail.com">EXT-vishnupavan@gmail.com</a> =
&lt;<a href=3D"mailto:vishnupavan@gmail.com">vishnupavan@gmail.com</a>&gt;,=
 Adrian Farrel &lt;<a href=3D"mailto:adrian@olddog.co.uk">adrian@olddog.co.=
uk</a>&gt;, Tarek Saad &lt;<a href=3D"mailto:tsaad.net@gmail.com">tsaad.net=
@gmail.com</a>&gt;,
 draft-decraene-mpls- &lt;<a href=3D"mailto:draft-decraene-mpls-slid-encode=
d-entropy-label-id@ietf.org">draft-decraene-mpls-slid-encoded-entropy-label=
-id@ietf.org</a>&gt;<br>
<b>Subject: </b>RE: [Teas] More Discussion//RE: Re:Re: New term for the und=
erlay construct used for slice realization<o:p></o:p></span></span></p>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif">Hi,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif">Comments inline.<o:p></o:p></span></=
p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif">Yours Irrespectively,<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif">John<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0cm;margin=
-bottom:.0001pt;text-align:center">
<span lang=3D"EN-US" style=3D"font-size:7.0pt;font-family:&quot;Calibri&quo=
t;,sans-serif;color:black">Juniper Business Use Only</span><span lang=3D"EN=
-US"><o:p></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"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,sans-serif">From:</span></b><span lang=3D"EN-=
US" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif"> =
Teas &lt;<a href=3D"mailto:teas-bounces@ietf.org">teas-bounces@ietf.org</a>=
&gt;
<b>On Behalf Of </b>Lizhenbin<br>
<b>Sent:</b> Thursday, August 19, 2021 1:05 PM<br>
<b>To:</b> TEAS WG &lt;<a href=3D"mailto:teas@ietf.org">teas@ietf.org</a>&g=
t;<br>
<b>Cc:</b> Dongjie (Jimmy) &lt;<a href=3D"mailto:jie.dong@huawei.com">jie.d=
ong@huawei.com</a>&gt;;
<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>; <a href=3D"mailto:m=
pls@ietf.org">
mpls@ietf.org</a>; </span><span style=3D"font-size:11.0pt;font-family:&quot=
;Microsoft JhengHei&quot;,sans-serif">=B9=A8=C1=A2=D1=DE</span><span lang=
=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-s=
erif"> &lt;<a href=3D"mailto:gongliyan@chinamobile.com">gongliyan@chinamobi=
le.com</a>&gt;;
 draft-filsfils-sprin &lt;<a href=3D"mailto:draft-filsfils-spring-srv6-stat=
eless-slice-id@ietf.org">draft-filsfils-spring-srv6-stateless-slice-id@ietf=
.org</a>&gt;; draft-ali-teas-sprin &lt;<a href=3D"mailto:draft-ali-teas-spr=
ing-ns-building-blocks@ietf.org">draft-ali-teas-spring-ns-building-blocks@i=
etf.org</a>&gt;;
<a href=3D"mailto:EXT-vishnupavan@gmail.com">EXT-vishnupavan@gmail.com</a> =
&lt;<a href=3D"mailto:vishnupavan@gmail.com">vishnupavan@gmail.com</a>&gt;;=
 Adrian Farrel &lt;<a href=3D"mailto:adrian@olddog.co.uk">adrian@olddog.co.=
uk</a>&gt;; Tarek Saad &lt;<a href=3D"mailto:tsaad.net@gmail.com">tsaad.net=
@gmail.com</a>&gt;;
 draft-decraene-mpls- &lt;<a href=3D"mailto:draft-decraene-mpls-slid-encode=
d-entropy-label-id@ietf.org">draft-decraene-mpls-slid-encoded-entropy-label=
-id@ietf.org</a>&gt;<br>
<b>Subject:</b> [Teas] More Discussion//RE: Re:Re: New term for the underla=
y construct used for slice realization<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"line-height:12.0pt;background:#FFEB9C"><b><=
span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:Lato;color:black"=
>[External Email. Be cautious of content]<o:p></o:p></span></b></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Hi Folks,<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">The =A1=B0new term=A1=
=B1 discussion has been lasted for a while, thanks to all who participated =
in the discussion.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">So far it seems there =
are some rough consensus about this =A1=B0new term=A1=B1 (maybe I am wrong)=
 :<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">1. It is better to hav=
e a neutral term, which allows this underlay construct to be used for both =
network slice services and other types of services.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">2. It seems =A1=B0reso=
urce group=A1=B1 receives more support than other candidates.<o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></i></=
b></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,sans-serif">[JD]&nbsp; Making these conclu=
sions is the co-chairs=A1=AF job.<o:p></o:p></span></i></b></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:14.0pt;font-=
family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:14.0pt;font-=
family:&quot;Calibri&quot;,sans-serif">[TS]: &#43;1<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Here I=A1=AFd also lik=
e to share some considerations and doubts about the underlay construct used=
 for slice realization:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">1. Before this discuss=
ion happens, it seems many network slicing related drafts use =A1=B0slice=
=A1=B1 in their terms which refer to this underlay construct.
 However, through this new term discussion, it seems most people indicate t=
hey prefer a neutral term than a slice specific term. Thus I expect the aut=
hors of the related drafts to provide more feedback about this point and in=
dicate whether they agree with the
 choice of a neutral term.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">2. As mentioned severa=
l times during the discussion, this underlay construct has both the topolog=
y and resource attributes. With the term =A1=B0resource
 group=A1=B1, it is clear that it is a set of network resources, then how a=
bout the topology attribute? Is the topology attribute also included in the=
 =A1=B0resource group=A1=B1?
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></i></=
b></p>
<p class=3D"MsoNormal" style=3D"margin-left:9.6pt"><b><i><span lang=3D"EN-U=
S" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif">[J=
D]&nbsp; There are two separate concepts:<o:p></o:p></span></i></b></p>
<p class=3D"MsoNormal" style=3D"margin-left:9.6pt"><b><i><span lang=3D"EN-U=
S" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif"><o=
:p>&nbsp;</o:p></span></i></b></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:27.6pt;text-indent:-18.0=
pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt;f=
ont-family:&quot;Calibri&quot;,sans-serif"><span style=3D"mso-list:Ignore">=
1)<span style=3D"font:7.0pt &quot;Times New Roman&quot;">&nbsp;&nbsp;&nbsp;=
&nbsp;
</span></span></span></i></b><![endif]><b><i><span lang=3D"EN-US" style=3D"=
font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif">Resource Parti=
tion - a subset of an underlay network link's buffer/queuing/scheduling res=
ources used to enable the underlay network to
 have finer grained control of its data plane.<o:p></o:p></span></i></b></p=
>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></i></=
b></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:27.6pt;text-indent:-18.0=
pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt;f=
ont-family:&quot;Calibri&quot;,sans-serif"><span style=3D"mso-list:Ignore">=
2)<span style=3D"font:7.0pt &quot;Times New Roman&quot;">&nbsp;&nbsp;&nbsp;=
&nbsp;
</span></span></span></i></b><![endif]><b><i><span lang=3D"EN-US" style=3D"=
font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif">Combining thes=
e resource partitions into a topology in the underlay network, for which I =
was using the term 'partitioned underlay network
 topology'.<o:p></o:p></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:14.0pt=
;font-family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></i></=
b></p>
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"font-size:14.0pt;fo=
nt-family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></b></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D"font-size:14.0pt;font-=
family:&quot;Calibri&quot;,sans-serif">[TS]: I suggested appending network =
=A8C i.e. =A1=B0network resource partition=A1=B1 as more suitable to indica=
te resources are over an underlay =A1=B0network=A1=B1 vs. a resource partit=
ion
 over a single link.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">[Jie] While I understa=
nd the intent here is to indicate that the resource partitions are spread o=
ver the network, however =A1=B0network resource partition=A1=B1
 could be interpreted as =A1=B0partition of network resources (e.g. buffer/=
queue/scheduling resources)=A1=B1, which does not convey the information we=
 need.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Perhaps a more explici=
t approach is to put network in the end: resource partitioned network (or s=
ub-network), so that it is clear that the resource
 partitions are spread over the network with a sub-topology. <o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal" style=3D"margin-left:4.8pt"><b><i><span lang=3D"EN-U=
S" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;col=
or:#1F497D"><o:p>&nbsp;</o:p></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:10.5pt=
;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p=
></span></i></b></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">3. What is the intende=
d scope of resource group? More specifically, is a point-to-point path or a=
 P2MP path with a set of reserved network resource
 a resource group? In history, RSVP-TE was used to set up resource reserved=
 point-to-point TE paths and P2MP TE paths. More recently, there is effort =
in DetNet WG on the mechanisms to set up deterministic data paths. Can thes=
e paths be considered as resource
 groups? &nbsp;Can we further classify them into different P2P resource gro=
up, P2MP resource group, or MP2MP resource group?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></i></=
b></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,sans-serif">[JD]&nbsp; The connectivity co=
nstructs of a given IETF network slice service can be implemented in the un=
derlay network using whatever technologies the provider
 wishes to use.&nbsp; A given resource partition can support multiple conne=
ctivity constructs of any type.<o:p></o:p></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></i></=
b></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D"font-size:14.0pt;font-=
family:&quot;Calibri&quot;,sans-serif">[TS]: I agree here. Different connec=
tivity types can be realized over the same network resource partition</span=
><span lang=3D"EN-CA">
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">[Jie] Then my understa=
nding is this underlay construct always provide any-to-any connectivity bet=
ween the edge nodes, which can be used to deliver
 services with any connectivity type. Is this correct?<o:p></o:p></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:14.0pt;font-=
family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">4. A more subtle quest=
ion is, what is the relationship between resource group and TE? Is resource=
 group a construct under the TE architecture, or
 is there some overlap between them?</span><span lang=3D"EN-US" style=3D"fo=
nt-size:10.5pt;font-family:&quot;Calibri&quot;,sans-serif"><o:p></o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,sans-serif">[JD]&nbsp; Resource partitions=
 just provide an enhanced underlay network topology to which a provider can=
 apply TE if they so desire.<o:p></o:p></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:14.0pt=
;font-family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></i></=
b></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D"font-size:14.0pt;font-=
family:&quot;Calibri&quot;,sans-serif">[TS]: TE can be done over the resour=
ces that a network resource partition can offer =A8C for example, to optima=
lly place paths over the remaining resources of network
 resource partition.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">[Jie] This may be rela=
ted to the definition of TE. Is resource partition or reservation one of th=
e components of TE? I hope we can get some answer
 from 3272bis.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">We used to define the =
TE-LSP as something with which we can specify the path and the set of resou=
rces reserved along the path. Following this, the
 underlay construct we are discussing can be used to specify the topology a=
nd the set of resources reserved in the topology. &nbsp;If we call the TE-L=
SP a =A1=B0TE path=A1=B1, maybe we can call this underlay construct a =A1=
=B0TE network=A1=B1 or =A1=B0virtual TE network=A1=B1. Then TE paths
 can be provisioned in the virtual TE network, just like how the TE paths a=
re provisioned in the physical network.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Best regards,<o:p></o:=
p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Jie<o:p></o:p></span><=
/p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D"font-size:14.0pt;font-=
family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D"font-size:14.0pt;font-=
family:&quot;Calibri&quot;,sans-serif">Regards,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D"font-size:14.0pt;font-=
family:&quot;Calibri&quot;,sans-serif">Tarek<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:14.0pt;font-=
family:&quot;Calibri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Wish to learn your tho=
ughts on these considerations and doubts.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Best Regards,<o:p></o:=
p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Robin<o:p></o:p></span=
></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></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"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,sans-serif">From:</span></b><span lang=3D"EN-=
US" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif"> =
Lizhenbin
<br>
<b>Sent:</b> Tuesday, August 17, 2021 10:29 PM<br>
<b>To:</b> '</span><span style=3D"font-size:11.0pt">=B9=A8=C1=A2=D1=DE</spa=
n><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;Calibri&=
quot;,sans-serif">' &lt;<a href=3D"mailto:gongliyan@chinamobile.com">gongli=
yan@chinamobile.com</a>&gt;; draft-ali-teas-sprin &lt;<a href=3D"mailto:dra=
ft-ali-teas-spring-ns-building-blocks@ietf.org">draft-ali-teas-spring-ns-bu=
ilding-blocks@ietf.org</a>&gt;;
 draft-filsfils-sprin &lt;<a href=3D"mailto:draft-filsfils-spring-srv6-stat=
eless-slice-id@ietf.org">draft-filsfils-spring-srv6-stateless-slice-id@ietf=
.org</a>&gt;; draft-decraene-mpls- &lt;<a href=3D"mailto:draft-decraene-mpl=
s-slid-encoded-entropy-label-id@ietf.org">draft-decraene-mpls-slid-encoded-=
entropy-label-id@ietf.org</a>&gt;<br>
<b>Cc:</b> Dongjie (Jimmy) &lt;<a href=3D"mailto:jie.dong@huawei.com">jie.d=
ong@huawei.com</a>&gt;;
<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>; <a href=3D"mailto:m=
pls@ietf.org">
mpls@ietf.org</a>; TEAS WG &lt;<a href=3D"mailto:teas@ietf.org">teas@ietf.o=
rg</a>&gt;; EXT-vishnupavan@gmai &lt;<a href=3D"mailto:vishnupavan@gmail.co=
m">vishnupavan@gmail.com</a>&gt;; Adrian Farrel &lt;<a href=3D"mailto:adria=
n@olddog.co.uk">adrian@olddog.co.uk</a>&gt;; Tarek Saad
 &lt;<a href=3D"mailto:tsaad.net@gmail.com">tsaad.net@gmail.com</a>&gt;<br>
<b>Subject:</b> RE: Re:Re: [Teas] New term for the underlay construct used =
for slicerealization<o:p></o:p></span></p>
</div>
</div>
<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" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Hi Liyan,<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Sorry that I missed yo=
ur new draft. Thanks for your feedback. It is helpful for us to have a comm=
on terminology.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Best Regards,<o:p></o:=
p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Robin<o:p></o:p></span=
></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,sans-serif">From:</span></b><span lang=3D"EN-=
US" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif">
</span><span style=3D"font-size:11.0pt">=B9=A8=C1=A2=D1=DE</span><span lang=
=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-s=
erif"> [<a href=3D"mailto:gongliyan@chinamobile.com">mailto:gongliyan@china=
mobile.com</a>]
<br>
<b>Sent:</b> Tuesday, August 17, 2021 4:48 PM<br>
<b>To:</b> Lizhenbin &lt;<a href=3D"mailto:lizhenbin@huawei.com">lizhenbin@=
huawei.com</a>&gt;; draft-ali-teas-sprin &lt;<a href=3D"mailto:draft-ali-te=
as-spring-ns-building-blocks@ietf.org">draft-ali-teas-spring-ns-building-bl=
ocks@ietf.org</a>&gt;; draft-filsfils-sprin &lt;<a href=3D"mailto:draft-fil=
sfils-spring-srv6-stateless-slice-id@ietf.org">draft-filsfils-spring-srv6-s=
tateless-slice-id@ietf.org</a>&gt;;
 draft-decraene-mpls- &lt;<a href=3D"mailto:draft-decraene-mpls-slid-encode=
d-entropy-label-id@ietf.org">draft-decraene-mpls-slid-encoded-entropy-label=
-id@ietf.org</a>&gt;<br>
<b>Cc:</b> Dongjie (Jimmy) &lt;<a href=3D"mailto:jie.dong@huawei.com">jie.d=
ong@huawei.com</a>&gt;;
<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>; <a href=3D"mailto:m=
pls@ietf.org">
mpls@ietf.org</a>; TEAS WG &lt;<a href=3D"mailto:teas@ietf.org">teas@ietf.o=
rg</a>&gt;; EXT-vishnupavan@gmai &lt;<a href=3D"mailto:vishnupavan@gmail.co=
m">vishnupavan@gmail.com</a>&gt;; Adrian Farrel &lt;<a href=3D"mailto:adria=
n@olddog.co.uk">adrian@olddog.co.uk</a>&gt;; Tarek Saad
 &lt;<a href=3D"mailto:tsaad.net@gmail.com">tsaad.net@gmail.com</a>&gt;<br>
<b>Subject:</b> Re:Re: [Teas] New term for the underlay construct used for =
slicerealization<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p><span lang=3D"EN-US">Hi All</span><span style=3D"font-family:&quot;MS Go=
thic&quot;">=A3=AC</span><span lang=3D"EN-US"><o:p></o:p></span></p>
<p><span lang=3D"EN-US">The draft-cheng-spring-srv6-encoding-network-slicei=
d[1] also provided a slice ID encoding solution.<o:p></o:p></span></p>
<p><span lang=3D"EN-US">And about the discussion, we are fine to follow the=
 final decision of the WG, no special requirements.<o:p></o:p></span></p>
<p><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p><span lang=3D"EN-US">[1] <a href=3D"https://urldefense.com/v3/__https:/d=
atatracker.ietf.org/doc/draft-cheng-spring-srv6-encoding-network-sliceid/__=
;!!NEt6yMaO-gk!UEzcMT5c8gj3IM4YTjtt3_cAKLDIdvWjVnDnaMVJtcpFKSjgsNrS6x9I2VZ2=
kRs$">
https://datatracker.ietf.org/doc/draft-cheng-spring-srv6-encoding-network-s=
liceid/</a><o:p></o:p></span></p>
<p><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p><span lang=3D"EN-US">Best Regards,<o:p></o:p></span></p>
<p><span lang=3D"EN-US">Liyan Gong<o:p></o:p></span></p>
<div id=3D"divsignature">
<p><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
<blockquote style=3D"margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;ma=
rgin-bottom:5.0pt" id=3D"oriMsgHtmlSeperator">
<p class=3D"MsoNormal"><span lang=3D"EN-US">----</span>=D3=CA=BC=FE=D4=AD=
=CE=C4<span lang=3D"EN-US">----<br>
</span><strong><span style=3D"font-family:=CB=CE=CC=E5">=B7=A2=BC=FE=C8=CB=
=A3=BA</span></strong><span lang=3D"EN-US">Lizhenbin&nbsp;&nbsp;&lt;<a href=
=3D"mailto:lizhenbin@huawei.com">lizhenbin@huawei.com</a>&gt;<br>
</span><strong><span style=3D"font-family:=CB=CE=CC=E5">=CA=D5=BC=FE=C8=CB=
=A3=BA</span></strong><span lang=3D"EN-US">&quot;<a href=3D"mailto:draft-al=
i-teas-spring-ns-building-blocks@ietf.org">draft-ali-teas-spring-ns-buildin=
g-blocks@ietf.org</a>&quot;&nbsp;&lt;<a href=3D"mailto:draft-ali-teas-sprin=
g-ns-building-blocks@ietf.org">draft-ali-teas-spring-ns-building-blocks@iet=
f.org</a>&gt;,&quot;<a href=3D"mailto:draft-filsfils-spring-srv6-stateless-=
slice-id@ietf.org">draft-filsfils-spring-srv6-stateless-slice-id@ietf.org</=
a>&quot;&nbsp;&lt;<a href=3D"mailto:draft-filsfils-spring-srv6-stateless-sl=
ice-id@ietf.org">draft-filsfils-spring-srv6-stateless-slice-id@ietf.org</a>=
&gt;,&quot;<a href=3D"mailto:draft-decraene-mpls-slid-encoded-entropy-label=
-id@ietf.org">draft-decraene-mpls-slid-encoded-entropy-label-id@ietf.org</a=
>&quot;&nbsp;&lt;<a href=3D"mailto:draft-decraene-mpls-slid-encoded-entropy=
-label-id@ietf.org">draft-decraene-mpls-slid-encoded-entropy-label-id@ietf.=
org</a>&gt;<br>
</span><strong><span style=3D"font-family:=CB=CE=CC=E5">=B3=AD=A1=A1=CB=CD<=
/span></strong><strong><span lang=3D"EN-US" style=3D"font-family:=CB=CE=CC=
=E5">:
</span></strong><span lang=3D"EN-US">&quot;Dongjie&nbsp;<a href=3D"file:///=
\\(Jimmy\)">\\(Jimmy\\)</a>&quot;&nbsp;&lt;<a href=3D"mailto:jie.dong@huawe=
i.com">jie.dong@huawei.com</a>&gt;,&quot;<a href=3D"mailto:spring@ietf.org"=
>spring@ietf.org</a>&quot;&nbsp;&lt;<a href=3D"mailto:spring@ietf.org">spri=
ng@ietf.org</a>&gt;,&quot;<a href=3D"mailto:mpls@ietf.org">mpls@ietf.org</a=
>&quot;&nbsp;&lt;<a href=3D"mailto:mpls@ietf.org">mpls@ietf.org</a>&gt;,TEA=
S&nbsp;WG&nbsp;&nbsp;&lt;<a href=3D"mailto:teas@ietf.org">teas@ietf.org</a>=
&gt;,John&nbsp;E&nbsp;Drake&nbsp;&nbsp;&lt;<a href=3D"mailto:jdrake=3D40jun=
iper.net@dmarc.ietf.org">jdrake=3D40juniper.net@dmarc.ietf.org</a>&gt;,&quo=
t;<a href=3D"mailto:EXT-vishnupavan@gmail.com">EXT-vishnupavan@gmail.com</a=
>&quot;&nbsp;&lt;<a href=3D"mailto:vishnupavan@gmail.com">vishnupavan@gmail=
.com</a>&gt;,Adrian&nbsp;Farrel&nbsp;&nbsp;&lt;<a href=3D"mailto:adrian@old=
dog.co.uk">adrian@olddog.co.uk</a>&gt;,Tarek&nbsp;Saad&nbsp;&nbsp;&lt;<a hr=
ef=3D"mailto:tsaad.net@gmail.com">tsaad.net@gmail.com</a>&gt;<br>
</span><strong><span style=3D"font-family:=CB=CE=CC=E5">=B7=A2=CB=CD=CA=B1=
=BC=E4=A3=BA</span></strong><span lang=3D"EN-US">2021-08-17 00:04:32<br>
</span><strong><span style=3D"font-family:=CB=CE=CC=E5">=D6=F7=CC=E2=A3=BA<=
/span></strong><span lang=3D"EN-US">Re:&nbsp;[Teas]&nbsp;New&nbsp;term&nbsp=
;for&nbsp;the&nbsp;underlay&nbsp;construct&nbsp;used&nbsp;for&nbsp;slicerea=
lization<br>
<br>
&nbsp; &nbsp;<o:p></o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">Hi authors of draft-ali-teas-spring-=
ns-building-blocks/draft-filsfils-spring-srv6-stateless-slice-id/draft-decr=
aene-mpls-slid-encoded-entropy-label-id,</span><span lang=3D"EN-US"><o:p></=
o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">&nbsp;</span><span lang=3D"EN-US"><o=
:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">It is known that your drafts are als=
o related with the underlay construct used for slice
 realization. It also seems that you use the term with =A1=B0slice=A1=B1 &n=
bsp;for the underlay construct. In the discussion of TEAS WG, there is some=
 consensus to define a neutral new term without =A1=B0slice=A1=B1. &nbsp;Wi=
sh to learn your opinions on the new term definition and there
 would be a convergence on the new term after your participating &nbsp;in t=
he discussion.</span><span lang=3D"EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">&nbsp;</span><span lang=3D"EN-US"><o=
:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">&nbsp;</span><span lang=3D"EN-US"><o=
:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">Best Regards,</span><span lang=3D"EN=
-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">Robin</span><span lang=3D"EN-US"><o:=
p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">&nbsp;</span><span lang=3D"EN-US"><o=
:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">&nbsp;</span><span lang=3D"EN-US"><o=
:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">&nbsp;</span><span lang=3D"EN-US"><o=
:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><strong><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family=
:&quot;Calibri&quot;,sans-serif">From:</span></strong><span lang=3D"EN-US" =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif">
 Teas [<a href=3D"mailto:teas-bounces@ietf.org">mailto:teas-bounces@ietf.or=
g</a>] <strong>
<span style=3D"font-family:&quot;Calibri&quot;,sans-serif">On Behalf Of </s=
pan></strong>John E Drake<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Sent:</s=
pan></strong> Monday, August 16, 2021 8:53 PM<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">To:</spa=
n></strong> Dongjie (Jimmy) &lt;<a href=3D"mailto:jie.dong@huawei.com">jie.=
dong@huawei.com</a>&gt;;
<a href=3D"mailto:EXT-vishnupavan@gmail.com">EXT-vishnupavan@gmail.com</a> =
&lt;<a href=3D"mailto:vishnupavan@gmail.com">vishnupavan@gmail.com</a>&gt;;=
 Adrian Farrel &lt;<a href=3D"mailto:adrian@olddog.co.uk">adrian@olddog.co.=
uk</a>&gt;<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Cc:</spa=
n></strong> Tarek Saad &lt;<a href=3D"mailto:tsaad.net@gmail.com">tsaad.net=
@gmail.com</a>&gt;; TEAS WG &lt;<a href=3D"mailto:teas@ietf.org">teas@ietf.=
org</a>&gt;<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Subject:=
</span></strong> Re: [Teas] New term for the underlay construct used for sl=
ice realization</span><span lang=3D"EN-US"><o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&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 lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif">Hi,</span><span lang=3D"EN-US"><o:p></o:p></span><=
/p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif">&nbsp;</span><span lang=3D"EN-US"><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 lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif">It sounds like slice aggregates, or more generally=
 overlay network service aggregates, are the things
 which use resource partitions.</span><span lang=3D"EN-US"><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 lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif">&nbsp;</span><span lang=3D"EN-US"><o:p></o:p></spa=
n></p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif">Yours Irrespectively,</span><span lang=3D"EN-US"><=
o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif">&nbsp;</span><span lang=3D"EN-US"><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 lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif">John</span><span lang=3D"EN-US"><o:p></o:p></span>=
</p>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif">&nbsp;</span><span lang=3D"EN-US"><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 lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif">&nbsp;</span><span lang=3D"EN-US"><o:p></o:p></spa=
n></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0cm;margin=
-bottom:.0001pt;text-align:center">
<span lang=3D"EN-US" style=3D"font-size:7.0pt;color:black">Juniper Business=
 Use Only</span><span lang=3D"EN-US"><o:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><strong><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family=
:&quot;Calibri&quot;,sans-serif">From:</span></strong><span lang=3D"EN-US" =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif">
 Teas &lt;<a href=3D"mailto:teas-bounces@ietf.org">teas-bounces@ietf.org</a=
>&gt; <strong>
<span style=3D"font-family:&quot;Calibri&quot;,sans-serif">On Behalf Of </s=
pan></strong>Dongjie (Jimmy)<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Sent:</s=
pan></strong> Friday, August 13, 2021 9:20 AM<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">To:</spa=
n></strong> <a href=3D"mailto:EXT-vishnupavan@gmail.com">
EXT-vishnupavan@gmail.com</a> &lt;<a href=3D"mailto:vishnupavan@gmail.com">=
vishnupavan@gmail.com</a>&gt;; Adrian Farrel &lt;<a href=3D"mailto:adrian@o=
lddog.co.uk">adrian@olddog.co.uk</a>&gt;<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Cc:</spa=
n></strong> Tarek Saad &lt;<a href=3D"mailto:tsaad.net@gmail.com">tsaad.net=
@gmail.com</a>&gt;; TEAS WG &lt;<a href=3D"mailto:teas@ietf.org">teas@ietf.=
org</a>&gt;<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Subject:=
</span></strong> Re: [Teas] New term for the underlay construct used for sl=
ice realization</span><span lang=3D"EN-US"><o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:12.0pt;background:#FFEB9C">
<strong><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:Lato;col=
or:black">[External Email. Be cautious of content]</span></strong><span lan=
g=3D"EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif">&nbsp;</span><span lang=3D"EN-US"><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 lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">Hi Pavan,
</span><span lang=3D"EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">&nbsp;</span><span lang=3D"EN-US"><o=
:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">Sorry for chiming in, please see som=
e comments inline:</span><span lang=3D"EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">&nbsp;</span><span lang=3D"EN-US"><o=
:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><strong><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family=
:&quot;Calibri&quot;,sans-serif">From:</span></strong><span lang=3D"EN-US" =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif">
 Teas [<a href=3D"mailto:teas-bounces@ietf.org">mailto:teas-bounces@ietf.or=
g</a>] <strong>
<span style=3D"font-family:&quot;Calibri&quot;,sans-serif">On Behalf Of </s=
pan></strong>Vishnu Pavan Beeram<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Sent:</s=
pan></strong> Friday, August 13, 2021 1:32 AM<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">To:</spa=
n></strong> Adrian Farrel &lt;<a href=3D"mailto:adrian@olddog.co.uk">adrian=
@olddog.co.uk</a>&gt;<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Cc:</spa=
n></strong> Tarek Saad &lt;<a href=3D"mailto:tsaad.net@gmail.com">tsaad.net=
@gmail.com</a>&gt;; TEAS WG &lt;<a href=3D"mailto:teas@ietf.org">teas@ietf.=
org</a>&gt;<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Subject:=
</span></strong> Re: [Teas] New term for the underlay construct used for sl=
ice realization</span><span lang=3D"EN-US"><o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">** As a WG participant.. **<o:p></o:p></span>=
</p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US"><br>
Adrian, Hi!<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US"><br>
Thanks for your earlier emails in this thread that have helped drill down t=
he discussion to the specific item that needs a fresh term!<br>
Please see inline (prefixed VPB).<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US"><br>
-Pavan (as a WG participant)<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">On Thu, Aug 12, 2021 at 10:05 AM Adrian Farre=
l &lt;<a href=3D"mailto:adrian@olddog.co.uk">adrian@olddog.co.uk</a>&gt; wr=
ote:<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-top:5.0pt;margin-right:0cm;margin-=
bottom:5.0pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">Thanks for your useful opinion, Tarek.<o:p></=
o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&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 lang=3D"EN-US">I have no objection to the use of the word
</span>=A1=B0<span lang=3D"EN-US">aggregate</span>=A1=B1<span lang=3D"EN-US=
">. It is generally used to express grouping together to treat as a single =
entity or to be treated in the same way.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&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 lang=3D"EN-US">But I do like
</span>=A1=B0<span lang=3D"EN-US">foo aggregate</span>=A1=B1<span lang=3D"E=
N-US"> to mean that a number of foo have been aggregated.<o:p></o:p></span>=
</p>
</div>
</div>
</blockquote>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">[VPB]&nbsp;But, that isn</span>=A1=AF<span la=
ng=3D"EN-US">t necessarily how IETF has been using the term
</span>=A1=B0<span lang=3D"EN-US">aggregate</span>=A1=B1<span lang=3D"EN-US=
">. &nbsp;</span>=A1=B0<span lang=3D"EN-US">Behavior Aggregate</span>=A1=B1=
<span lang=3D"EN-US"> (as defined in IETF) doesn</span>=A1=AF<span lang=3D"=
EN-US">t mean aggregating behaviors. The same goes for
</span>=A1=B0<span lang=3D"EN-US">Treatment Aggregate</span>=A1=B1<span lan=
g=3D"EN-US">. Behavior Aggregate (the way we read/interpret it) is an aggre=
gate with a specific behavior.&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 lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">&nbsp;</span><span lang=3D"EN-US"><o=
:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">[Jie] I just checked the definition =
of the =A1=B0aggregate=A1=B1 related terms in the RFCs:</span><span lang=3D=
"EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">&nbsp;</span><span lang=3D"EN-US"><o=
:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:4.8pt;text-indent:10.5pt">
<span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&qu=
ot;,sans-serif;color:#1F497D">Behavior Aggregate (defined in RFC 2474): a c=
ollection of packets with the same codepoint crossing a &nbsp;link in a par=
ticular direction.=A1=B1</span><span lang=3D"EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:4.8pt;text-indent:10.5pt">
<span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&qu=
ot;,sans-serif;color:#1F497D">&nbsp;</span><span lang=3D"EN-US"><o:p></o:p>=
</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:4.8pt;text-indent:10.5pt">
<span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&qu=
ot;,sans-serif;color:#1F497D">Traffic Aggregate (defined in RFC 3086): a co=
llection of packets with a codepoint that maps to the same &nbsp;PHB, usual=
ly in a DS domain or some subset of a DS domain.</span><span lang=3D"EN-US"=
><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:4.8pt;text-indent:10.5pt">
<span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&qu=
ot;,sans-serif;color:#1F497D">&nbsp;</span><span lang=3D"EN-US"><o:p></o:p>=
</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:4.8pt;text-indent:10.5pt">
<span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&qu=
ot;,sans-serif;color:#1F497D">Treatment Aggregate (defined in RFC 5127): Th=
is term is defined as the aggregate of Diffserv service &nbsp;classes.&nbsp=
; A treatment aggregate is concerned only with the forwarding
 treatment of the aggregated traffic, &nbsp;which may be marked with multip=
le DSCPs.</span><span lang=3D"EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">&nbsp;</span><span lang=3D"EN-US"><o=
:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">My reading of these definitions is t=
hat =A1=B0aggregate=A1=B1 here means either aggregated packets
 or aggregated service classes which are treated in the same &nbsp;way on a=
 particular node or link.</span><span lang=3D"EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">&nbsp;</span><span lang=3D"EN-US"><o=
:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">While what we want to describe with =
the new term IMO is =A1=B0a group of network resources
 allocated on a set of network nodes and links=A1=B1. Such group &nbsp;of r=
esources can be provisioned in different places of the network and are orga=
nized together to provide a specific network-level behavior.
</span><span lang=3D"EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">&nbsp;</span><span lang=3D"EN-US"><o=
:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">Thus the key information to be deliv=
ered with the new term is =A1=B0a group of organized resources
 in the network=A1=B1, rather than =A1=B0aggregated behavior at &nbsp;a par=
ticular point=A1=B1.</span><span lang=3D"EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">&nbsp;</span><span lang=3D"EN-US"><o=
:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">Best regards,</span><span lang=3D"EN=
-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D">Jie</span><span lang=3D"EN-US"><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-top:5.0pt;margin-right:0cm;margin-=
bottom:5.0pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&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 lang=3D"EN-US">So
</span>=A1=B0<span lang=3D"EN-US">slice aggregate</span>=A1=B1<span lang=3D=
"EN-US"> would be an aggregation of slices. Your use in I-D.draft-bestbar-t=
eas-ns-packet is, therefore, confusing. If the slices are *<strong><span st=
yle=3D"font-family:=CB=CE=CC=E5">not</span></strong>* separated
 out into different flows (or traffic streams) then, yes, you are aggregati=
ng slices. But if the slices are separated out, as you describe, &nbsp;then=
 what you have is
</span>=A1=B0<span lang=3D"EN-US">IETF network slice traffic stream aggrega=
tion</span>=A1=B1<span lang=3D"EN-US">.<o:p></o:p></span></p>
</div>
</div>
</blockquote>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&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 lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">[VPB]&nbsp;Yes. The definition of the slice a=
ggregate (as defined in draft-bestbar-teas-ns-packet) does state that the&n=
bsp;slice aggregate&nbsp;comprises of one or more IETF
 network slice traffic streams.&nbsp; We could have chosen a longer &nbsp;d=
escriptive name, but opted to keep it short.<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0c=
m 0cm 0cm 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-=
bottom:5.0pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">=A1=B0<span lang=3D"EN-US">Network resource aggregate</span>=A1=B1=
<span lang=3D"EN-US"> would imply that resources have been collected togeth=
er to be used as a single entity.<o:p></o:p></span></p>
</div>
</div>
</blockquote>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">[VPB]&nbsp;Not necessarily. &quot;Network Res=
ource Aggregate&quot; isn't meant to imply &quot;aggregating network resour=
ces&quot;. The intent behind the&nbsp;proposal is to say that it is
 an aggregate that has specific network resources.&nbsp;<o:p></o:p></span><=
/p>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">You might do that, for example, with a set of=
 parallel links that can be aggregated (or bundled) and treated as a single=
 link.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&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 lang=3D"EN-US">I don</span>=A1=AF<span lang=3D"EN-US">t thin=
k we are aggregating resources in this case. We are grouping, profiling, pa=
rtitioning, collecting, or even filtering.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&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 lang=3D"EN-US">Adrian<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><strong><span lang=3D"EN-US" style=3D"font-family:=CB=CE=CC=E5">Fr=
om:</span></strong><span lang=3D"EN-US"> Tarek Saad &lt;<a href=3D"mailto:t=
saad.net@gmail.com" target=3D"_blank">tsaad.net@gmail.com</a>&gt;
<br>
<strong><span style=3D"font-family:=CB=CE=CC=E5">Sent:</span></strong> 12 A=
ugust 2021 15:41<br>
<strong><span style=3D"font-family:=CB=CE=CC=E5">To:</span></strong> <a hre=
f=3D"mailto:adrian@olddog.co.uk" target=3D"_blank">
adrian@olddog.co.uk</a>; 'Kiran Makhijani' &lt;<a href=3D"mailto:kiran.ietf=
@gmail.com" target=3D"_blank">kiran.ietf@gmail.com</a>&gt;; 'John E Drake' =
&lt;jdrake=3D<a href=3D"mailto:40juniper.net@dmarc.ietf.org" target=3D"_bla=
nk">40juniper.net@dmarc.ietf.org</a>&gt;; &nbsp;'Dongjie (Jimmy)'
 &lt;<a href=3D"mailto:jie.dong@huawei.com" target=3D"_blank">jie.dong@huaw=
ei.com</a>&gt;; 'Lizhenbin' &lt;<a href=3D"mailto:lizhenbin@huawei.com" tar=
get=3D"_blank">lizhenbin@huawei.com</a>&gt;;
<a href=3D"mailto:teas@ietf.org" target=3D"_blank">teas@ietf.org</a><br>
<strong><span style=3D"font-family:=CB=CE=CC=E5">Subject:</span></strong> R=
e: [Teas] New term for the underlay construct used for slice realization<o:=
p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&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 lang=3D"EN-US">Hi Adrian/all,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&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 lang=3D"EN-US">As described in I-D.ietf-teas-ietf-network-sl=
ice-definition, an IETF Network Slice service may include multiple connecti=
ons that associate sets of endpoints -
 &nbsp;each having a set of SLOs/SLEs.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">In I-D.draft-bestbar-teas-ns-packet, we defin=
ed a Slice Aggregate as a construct that comprises of one or more IETF netw=
ork slice traffic streams that share the
 &nbsp;same set of SLOs/SLEs.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">The Slice Aggregate construct allows aggregat=
ing streams from multiple IETF Network Slice connections that share common =
SLOs/SLEs so that the provider network
 &nbsp;can offer the same aggregate treatment to them. The Slice Aggregate =
resources are instantiated on specific network elements as dictated by the =
Slice Aggregate topology.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&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 lang=3D"EN-US">Since the scope of I-D.draft-bestbar-teas-ns-=
packet was the realization of IETF Network Slice service in a provider netw=
ork, we had constrained the aggregate
 &nbsp;construct to slices.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&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 lang=3D"EN-US">We understand that the aggregate construct ca=
n be generalized to support other services. Let us offer another option to =
consider for representing the generic
 &nbsp;construct: </span>=A1=B0<span lang=3D"EN-US">Network Resource Aggreg=
ate</span>=A1=B1<span lang=3D"EN-US">. There are multiple IETF documents th=
at use the term Aggregate whenever grouping multiple service classes (Behav=
ior Aggregate, Treatment Aggregate, Traffic Aggregate,
 &nbsp;etc.) - refer to rfc5127 and rfc2474 for more examples.<o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&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 lang=3D"EN-US">Regards,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">Tarek<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&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 lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;margin-bottom:12.0p=
t;margin-left:36.0pt">
<strong><span lang=3D"EN-US" style=3D"font-family:=CB=CE=CC=E5;color:black"=
>From: </span></strong><span lang=3D"EN-US" style=3D"color:black">Teas &lt;=
</span><span lang=3D"EN-US"><a href=3D"mailto:teas-bounces@ietf.org" target=
=3D"_blank">teas-bounces@ietf.org</a><span style=3D"color:black">&gt;
 on behalf of Adrian &nbsp;Farrel &lt;</span><a href=3D"mailto:adrian@olddo=
g.co.uk" target=3D"_blank">adrian@olddog.co.uk</a><span style=3D"color:blac=
k">&gt;<br>
<strong><span style=3D"font-family:=CB=CE=CC=E5">Date: </span></strong>Wedn=
esday, August 11, 2021 at 3:38 PM<br>
<strong><span style=3D"font-family:=CB=CE=CC=E5">To: </span></strong>'Kiran=
 Makhijani' &lt;</span><a href=3D"mailto:kiran.ietf@gmail.com" target=3D"_b=
lank">kiran.ietf@gmail.com</a><span style=3D"color:black">&gt;, 'John E Dra=
ke' &lt;</span><a href=3D"mailto:jdrake=3D40juniper.net@dmarc.ietf.org" tar=
get=3D"_blank">jdrake=3D40juniper.net@dmarc.ietf.org</a><span style=3D"colo=
r:black">&gt;,
 &nbsp;'Dongjie (Jimmy)' &lt;</span><a href=3D"mailto:jie.dong@huawei.com" =
target=3D"_blank">jie.dong@huawei.com</a><span style=3D"color:black">&gt;, =
'Lizhenbin' &lt;</span><a href=3D"mailto:lizhenbin@huawei.com" target=3D"_b=
lank">lizhenbin@huawei.com</a><span style=3D"color:black">&gt;,
</span><a href=3D"mailto:teas@ietf.org" target=3D"_blank">teas@ietf.org</a>=
<span style=3D"color:black"> &lt;</span><a href=3D"mailto:teas@ietf.org" ta=
rget=3D"_blank">teas@ietf.org</a><span style=3D"color:black">&gt;<br>
<strong><span style=3D"font-family:=CB=CE=CC=E5">Subject: </span></strong>R=
e: [Teas] New term for the underlay construct used for slice realization</s=
pan><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:36.0pt">
<span lang=3D"EN-US">I wonder whether we can pick this apart and put it bac=
k together in a way<br>
that makes sense.<br>
<br>
The customer's view of all this is an &quot;IETF network slice service&quot=
;. I think<br>
(hope) we are all agreed on this. The customer may ask (in shorthand) for a=
<br>
&quot;network slice&quot;, but:<br>
- they are talking about IETF technology, so they asking for an &quot;IETF<=
br>
network slice&quot;<br>
- they actually want behavioural characteristics and have no right to tell<=
br>
the operator<br>
&nbsp; how to manage the network, so they are asking for an &quot;IETF netw=
ork slice<br>
service.&quot;<br>
<br>
The operator has a bigger set of things to worry about. <br>
<br>
1. At the top of the operator's view is the &quot;IETF network slice servic=
e&quot; as<br>
&nbsp;&nbsp;&nbsp; requested by the customer. We have this defined already,=
 so nothing more<br>
&nbsp;&nbsp;&nbsp; to say.<br>
<br>
2. The operator maps the request for a slice service into the &quot;IETF ne=
twork<br>
&nbsp;&nbsp;&nbsp; slice&quot; which is the expression of the service in te=
rms of network<br>
connectivity<br>
&nbsp;&nbsp;&nbsp; in the context of the operator's network. The relationsh=
ip here is like<br>
the<br>
&nbsp;&nbsp;&nbsp; relationship between the L3SM and L3NM.<br>
<br>
3. At the bottom of their view is an underlying network. The technology of<=
br>
this<br>
&nbsp;&nbsp; network depends, of course, on the operator's offering, but th=
is is the<br>
network<br>
&nbsp;&nbsp; technology being sliced. It may be an IP network, and MPLS net=
work, an<br>
OTN,<br>
&nbsp;&nbsp; or whatever. I would call this the &quot;Underlay Network.&quo=
t; This network may,<br>
in<br>
&nbsp;&nbsp; turn, be built upon an underlay network of the same or a diffe=
rent<br>
technology,<br>
&nbsp;&nbsp; and it may be facilitated through network slicing - but this n=
eed not<br>
concern<br>
&nbsp;&nbsp; us here. <br>
<br>
4. That leaves the glue in the middle: the bit that enables the scaling and=
<br>
maps<br>
&nbsp;&nbsp; the network slice to the network. And I think it is this bit t=
hat is<br>
causing the<br>
&nbsp;&nbsp; most debate about terminology. There are some points to consid=
er:<br>
<br>
&nbsp;&nbsp; a. The term &quot;network resources&quot; applies to the bandw=
idth, queues,<br>
buffers,<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; etc. available on the links and nodes =
in the network. That may be <br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; extended to refer to whole links and n=
odes.<br>
<br>
&nbsp;&nbsp; b. The number of IETF network slice services is potentially la=
rge and the<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; operator needs a mechanism to scale th=
e mapping of services to <br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; network resources.<br>
<br>
&nbsp;&nbsp; c. The IETF network slices may be grouped for identical treatm=
ent to<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; achieve scaling, where the grouping co=
llects IETF network slices with<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; similar SLAs.<br>
<br>
&nbsp;&nbsp; d. It may be that different traffic flows within a single IETF=
 network<br>
slice<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; have different characteristics. =
In this case, it may be beneficial<br>
to group<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; together some of the traffic flo=
ws from different slices.<br>
<br>
&nbsp;&nbsp; e. The grouped slices/flows are enabled in the network using n=
etwork<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; resources assigned for that purp=
ose. The assignment may be anything<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from a fully-fledged virtual net=
work (such as in ACTN or VPN&#43;),<br>
through<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; network reserved resources (such=
 as in MPLS-TE), and centrally<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; accounted resources (such as SDN=
 or possible SR), to statistically<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; shared resources.<br>
<br>
There seems to be various points for and against 4d. But, it would appear<b=
r>
that this is an implementation or deployment issue that doesn't change what=
<br>
the protocols need to do. So we should probably allow it architecturally, o=
r<br>
at least, not disallow it.<br>
<br>
Of course, as Kiran points out, 4c/d/e may be a pass-through. That is, it i=
s<br>
not necessary to implement such groupings either because there are only a<b=
r>
few slices (which has been the view of some operators) or because the<br>
network systems can handle the number of slices. And it is in the nature of=
<br>
architectures of this sort that all functions can be nulled out without los=
s<br>
of generality, and we have to recall that the internals of provisioning<br>
systems may appear as functional blocks in our architectures, but we don't<=
br>
compel implementations to adhere to that type of architecture. So I don't<b=
r>
think we have to worry on that account.<br>
<br>
And that brings the question of how we name the resources that are gathered=
<br>
in 4e. <br>
<br>
I can't decide whether it is helpful to spend time saying why I don't like<=
br>
each of the proposed terms. I certainly have things I don't like about (for=
<br>
example) &quot;slice aggregate&quot; (because of 4d, which means it is real=
ly a &quot;slice<br>
sub-flow aggregate&quot;), and I am not a fan of &quot;VTN&quot; (because o=
f &quot;transport&quot;<br>
and maybe it is not really a network). But maybe it is better for me to say=
<br>
what I think we should call things? I think we have...<br>
<br>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IETF network slice service (customer =
view)<br>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IETF network slice (operator view)<br=
>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Resource partition (delivery mechanis=
m)<br>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Underlay network (network used to sup=
port the slice)<br>
<br>
Why &quot;resource partition&quot;? Well it is a collection of &quot;nodes,=
 links, and<br>
network resources that are marked within the network for use by a set of<br=
>
network slice traffic flows&quot;.<br>
It is possible that the word &quot;partition&quot; is too strong because it=
 may imply<br>
to some people that resources in a partition cannot be shared, but I don't<=
br>
feel that.<br>
Softer words than &quot;partition&quot; would be &quot;group&quot;, &quot;b=
undle&quot;, &quot;pool&quot;, and I<br>
could live with any of them.<br>
<br>
Best,<br>
Adrian<br>
<br>
<br>
-----Original Message-----<br>
From: Teas &lt;<a href=3D"mailto:teas-bounces@ietf.org" target=3D"_blank">t=
eas-bounces@ietf.org</a>&gt; On Behalf Of Kiran Makhijani<br>
Sent: 11 August 2021 16:00<br>
To: John E Drake &lt;<a href=3D"mailto:jdrake=3D40juniper.net@dmarc.ietf.or=
g" target=3D"_blank">jdrake=3D40juniper.net@dmarc.ietf.org</a>&gt;; Dongjie=
 (Jimmy)<br>
&lt;<a href=3D"mailto:jie.dong@huawei.com" target=3D"_blank">jie.dong@huawe=
i.com</a>&gt;; Lizhenbin &lt;<a href=3D"mailto:lizhenbin@huawei.com" target=
=3D"_blank">lizhenbin@huawei.com</a>&gt;;
<a href=3D"mailto:teas@ietf.org" target=3D"_blank">teas@ietf.org</a><br>
Subject: Re: [Teas] New term for the underlay construct used for slice<br>
realization<br>
<br>
Hi John, (and all),<br>
<br>
Two very basic clarification questions:<br>
1. How do we differentiate between&nbsp; the slice-segments that are <br>
resource-aware vs those that are not? I had assumed that since a slice <br>
has an SLO, it will need network resource allocations in some form.<br>
<br>
2. Is it ok to assume that the customer view of slice is an 'IETF <br>
network slice service' and the 'IETF slice realization' of that service <br=
>
in a provider network is raises the question of underlay and overlay <br>
constructs. Am I right?<br>
(a) if so, then we are acknowledging&nbsp; the presence of another layer of=
 <br>
abstraction (for realization). It could be underlay/overlay or <br>
aggregate/??. Then the term 'slice aggregate' is better and my <br>
preference, it is easier to see that different slice-services are <br>
aggregated into a single construct&nbsp; in a provider network. Use of <br>
underlay/overlay are confusing.<br>
(b) for a leaner provisioning, I would also prefer to see it documented <br=
>
that the aggregate is optional and it should be possible to directly map <b=
r>
a slice-service to physical or real resources in the network. <br>
specifically useful when a single domain is carving out slices for <br>
different purposes.<br>
<br>
Thanks<br>
Kiran<br>
<br>
<br>
------ Original Message ------<br>
From: &quot;John E Drake&quot; &lt;<a href=3D"mailto:jdrake=3D40juniper.net=
@dmarc.ietf.org" target=3D"_blank">jdrake=3D40juniper.net@dmarc.ietf.org</a=
>&gt;<br>
To: &quot;Dongjie (Jimmy)&quot; &lt;<a href=3D"mailto:jie.dong@huawei.com" =
target=3D"_blank">jie.dong@huawei.com</a>&gt;; &quot;Lizhenbin&quot;
<br>
&lt;<a href=3D"mailto:lizhenbin@huawei.com" target=3D"_blank">lizhenbin@hua=
wei.com</a>&gt;; &quot;<a href=3D"mailto:teas@ietf.org" target=3D"_blank">t=
eas@ietf.org</a>&quot; &lt;<a href=3D"mailto:teas@ietf.org" target=3D"_blan=
k">teas@ietf.org</a>&gt;<br>
Sent: 8/11/2021 5:38:05 AM<br>
Subject: Re: [Teas] New term for the underlay construct used for slice <br>
realization<br>
<br>
&gt;Jimmy,<br>
&gt;<br>
&gt;Snipped, comments inline.<br>
&gt;<br>
&gt;Yours Irrespectively,<br>
&gt;<br>
&gt;John<br>
&gt;<br>
&gt;<br>
&gt;Juniper Business Use Only<br>
&gt;<br>
&gt;&gt;&nbsp; -----Original Message-----<br>
&gt;&gt;&nbsp; From: Dongjie (Jimmy) &lt;<a href=3D"mailto:jie.dong@huawei.=
com" target=3D"_blank">jie.dong@huawei.com</a>&gt;<br>
&gt;&gt;&nbsp; Sent: Tuesday, August 10, 2021 11:03 PM<br>
&gt;&gt;&nbsp; To: John E Drake &lt;<a href=3D"mailto:jdrake@juniper.net" t=
arget=3D"_blank">jdrake@juniper.net</a>&gt;; Lizhenbin &lt;<a href=3D"mailt=
o:lizhenbin@huawei.com" target=3D"_blank">lizhenbin@huawei.com</a>&gt;;<br>
&gt;&gt;<a href=3D"mailto:teas@ietf.org" target=3D"_blank">teas@ietf.org</a=
><br>
&gt;&gt;&nbsp; Subject: RE: New term for the underlay construct used for sl=
ice<br>
realization<br>
&gt;&gt;<br>
&gt;&gt;&nbsp; [External Email. Be cautious of content]<br>
&gt;&gt;<br>
&gt;underlay construct for network slice realization bound to<br>
&gt;&gt;&nbsp; &gt; &gt; network slice services? That is, is the underlay c=
onstruct only for<br>
&gt;&gt;&nbsp; &gt; &gt; use in network slicing, or should it be generalize=
d for more<br>
possible uses?<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; [JD] Absolutely yes<br>
&gt;&gt;<br>
&gt;&gt;&nbsp; [Jie] I guess you mean &quot;Yes&quot; to the latter case, w=
hich is &quot;it should be<br>
generalized<br>
&gt;&gt;&nbsp; for more possible uses&quot;, is my understanding correct?<b=
r>
&gt;<br>
&gt;[JD]&nbsp; Yes to the latter<br>
&gt;<br>
&gt;&gt;<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; 2.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; If the answer to =
question 1 is YES, should it reflect the<br>
following<br>
&gt;&gt;&nbsp; &gt; &gt; characteristics?<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; a.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; It is about the u=
nderlay<br>
&gt;&gt;&nbsp; &gt; &gt; b.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; It is about the p=
artitioned resources used to deliver the<br>
network slice<br>
&gt;&gt;&nbsp; &gt; &gt; services<br>
&gt;&gt;&nbsp; &gt; &gt; c.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; It allows the 1:1=
, N:1, and 1:N mapping models between the<br>
network<br>
&gt;&gt;&nbsp; &gt; slice<br>
&gt;&gt;&nbsp; &gt; &gt; services and the underlay construct. The 1:1 and N=
:1 mapping may be<br>
&gt;&gt;&nbsp; &gt; &gt; straightforward. Does it also make sense to divide=
 the elements or<br>
&gt;&gt;&nbsp; &gt; &gt; traffic flows in a single network slice service to=
 carry them in<br>
&gt;&gt;&nbsp; &gt; &gt; different<br>
&gt;&gt;&nbsp; &gt; underlay constructs?<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; [JD]&nbsp; Yes to all of the above.&nbsp; Please see:<b=
r>
&gt;&gt;&nbsp; &gt; <a href=3D"https://urldefense.com/v3/__https:/datatrack=
er.ietf.org/doc/html/draf" target=3D"_blank">
https://urldefense.com/v3/__https://datatracker.ietf.org/doc/html/draf</a><=
br>
&gt;&gt;&nbsp; &gt; t-drake-bess-enhanced-vpn-06__;!!NEt6yMaO-<br>
&gt;&gt;&nbsp; gk!TCiJHCZCwFgwpuFoujxVlZ4r9<br>
&gt;&gt;&nbsp; &gt; F6mLpE4nJ-9zpqkY-kls-ROxL4C2_xNaR2ImI4$<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; Lastly, here are some candidates of the &quot;new =
term&quot;:<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; Option 1: The network slice service is called &quo=
t;overlay slice&quot;, then<br>
&gt;&gt;&nbsp; &gt; &gt; the underlay construct is called &quot;underlay sl=
ice&quot;.<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; Option 2: The network slice service is called &quo=
t;service slice&quot;, then<br>
&gt;&gt;&nbsp; &gt; &gt; the underlay construct is called &quot;resource sl=
ice&quot;.<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; [JD]&nbsp; I don't think we need another term for what =
we are already<br>
&gt;&gt;&nbsp; &gt; calling an 'IETF Network Slice Service'.&nbsp; Adrian a=
nd I are considering<br>
&gt;&gt;&nbsp; &gt; the term 'resource partition' to describe the partition=
ing of underlay<br>
&gt;&gt;&nbsp; &gt; network resources in support of various overlay service=
s such as IETF<br>
Network<br>
&gt;&gt;&nbsp; Slice Services.<br>
&gt;&gt;&nbsp; &gt; This is congruent with the ideas expressed in:<br>
&gt;&gt;&nbsp; &gt; <a href=3D"https://urldefense.com/v3/__https:/datatrack=
er.ietf.org/doc/html/draf" target=3D"_blank">
https://urldefense.com/v3/__https://datatracker.ietf.org/doc/html/draf</a><=
br>
&gt;&gt;&nbsp; &gt; t-ietf-spring-resource-aware-segmen__;!!NEt6yMaO-<br>
&gt;&gt;&nbsp; gk!TCiJHCZCwFgwpuFouj<br>
&gt;&gt;&nbsp; &gt; xVlZ4r9F6mLpE4nJ-9zpqkY-kls-ROxL4C2_xNxEfwaXg$<br>
&gt;&gt;&nbsp; &gt; ts-03.&nbsp; What this allows one to build is an 'parti=
tioned underlay<br>
&gt;&gt;&nbsp; &gt; network topology'.<br>
&gt;&gt;<br>
&gt;&gt;&nbsp; [Jie] Agree that here we are talking about the term for the =
underlay<br>
construct.<br>
&gt;&gt;&nbsp; &quot;Resource partition&quot; captures one of its key chara=
cteristics, while IMO<br>
another<br>
&gt;&gt;&nbsp; thing the term needs to reflect is that the resource partiti=
on is needed<br>
on a<br>
&gt;&gt;&nbsp; subset of the links and nodes (rather than on a single node =
or link) in<br>
the physical<br>
&gt;&gt;&nbsp; network, which together builds a logical network topology.<b=
r>
&gt;<br>
&gt;[JD]&nbsp; In my initial email, above, I was proposing 'partitioned und=
erlay<br>
network topology'<br>
&gt;<br>
&gt;&gt;<br>
&gt;&gt;&nbsp; Best regards,<br>
&gt;&gt;&nbsp; Jie<br>
&gt;&gt;<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; Your opinion about these candidates are much appre=
ciated. You may<br>
&gt;&gt;&nbsp; &gt; &gt; also propose other new term if it complies with th=
e above two<br>
points.<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; [JD]&nbsp; I think you have exceeded your remit.<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; Best Regards,<br>
&gt;&gt;&nbsp; &gt; &gt; Robin<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; _______________________________________________<br=
>
&gt;&gt;&nbsp; &gt; &gt; Teas mailing list<br>
&gt;&gt;&nbsp; &gt; &gt; <a href=3D"mailto:Teas@ietf.org" target=3D"_blank"=
>Teas@ietf.org</a><br>
&gt;&gt;&nbsp; &gt; &gt; <a href=3D"https://urldefense.com/v3/__https:/www.=
ietf.org/mailman/listinfo/te" target=3D"_blank">
https://urldefense.com/v3/__https://www.ietf.org/mailman/listinfo/te</a><br=
>
&gt;&gt;&nbsp; &gt; &gt; as<br>
&gt;&gt;&nbsp; &gt; &gt; __;!!N<br>
&gt;&gt;&nbsp; &gt; &gt; Et6yMaO-gk!Q0ycOf0ELxT6mG1GbnO4LSL-Q99J4uu7jfdUtBE=
CaI-<br>
&gt;&gt;&nbsp; &gt; &gt; O08HqD31TGJciNjuxL2A$<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; _______________________________________________<br>
&gt;&gt;&nbsp; &gt; Teas mailing list<br>
&gt;&gt;&nbsp; &gt; <a href=3D"mailto:Teas@ietf.org" target=3D"_blank">Teas=
@ietf.org</a><br>
&gt;&gt;&nbsp; &gt; <a href=3D"https://urldefense.com/v3/__https:/www.ietf.=
org/mailman/listinfo/teas" target=3D"_blank">
https://urldefense.com/v3/__https://www.ietf.org/mailman/listinfo/teas</a><=
br>
&gt;&gt;&nbsp; &gt; __;!!NEt6yMaO-gk!TCiJHCZCwFgwpuFoujxVlZ4r9F6mLpE4nJ-9zp=
qkY-kls-<br>
&gt;&gt;&nbsp; ROxL4C2<br>
&gt;&gt;&nbsp; &gt; _xNDCrPaNQ$<br>
&gt;<br>
&gt;_______________________________________________<br>
&gt;Teas mailing list<br>
&gt;<a href=3D"mailto:Teas@ietf.org" target=3D"_blank">Teas@ietf.org</a><br=
>
&gt;<a href=3D"https://urldefense.com/v3/__https:/www.ietf.org/mailman/list=
info/teas__;!!NEt6yMaO-gk!TKJch2dwsJUTEeFWCMLasf9_GayAVTsgrkNK6Ve48YTTS1iD_=
HNe2dms30OL80Q$" target=3D"_blank">https://www.ietf.org/mailman/listinfo/te=
as</a><br>
<br>
_______________________________________________<br>
Teas mailing list<br>
<a href=3D"mailto:Teas@ietf.org" target=3D"_blank">Teas@ietf.org</a><br>
<a href=3D"https://urldefense.com/v3/__https:/www.ietf.org/mailman/listinfo=
/teas__;!!NEt6yMaO-gk!TKJch2dwsJUTEeFWCMLasf9_GayAVTsgrkNK6Ve48YTTS1iD_HNe2=
dms30OL80Q$" target=3D"_blank">https://www.ietf.org/mailman/listinfo/teas</=
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://urldefense.com/v3/__https:/www.ietf.org/mailman/listinfo=
/teas__;!!NEt6yMaO-gk!TKJch2dwsJUTEeFWCMLasf9_GayAVTsgrkNK6Ve48YTTS1iD_HNe2=
dms30OL80Q$" target=3D"_blank">https://www.ietf.org/mailman/listinfo/teas</=
a><o:p></o:p></span></p>
</div>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">_____________________________________________=
__<br>
Teas mailing list<br>
<a href=3D"mailto:Teas@ietf.org" target=3D"_blank">Teas@ietf.org</a><br>
<a href=3D"https://urldefense.com/v3/__https:/www.ietf.org/mailman/listinfo=
/teas__;!!NEt6yMaO-gk!TKJch2dwsJUTEeFWCMLasf9_GayAVTsgrkNK6Ve48YTTS1iD_HNe2=
dms30OL80Q$" target=3D"_blank">https://www.ietf.org/mailman/listinfo/teas</=
a><o:p></o:p></span></p>
</div>
</blockquote>
</div>
</div>
</div>
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From: John E Drake <jdrake@juniper.net>
To: "Dongjie (Jimmy)" <jie.dong@huawei.com>, Tarek Saad <tsaad.net@gmail.com>,  Lizhenbin <lizhenbin@huawei.com>, TEAS WG <teas@ietf.org>
CC: "spring@ietf.org" <spring@ietf.org>, "mpls@ietf.org" <mpls@ietf.org>, =?utf-8?B?6b6a56uL6Imz?= <gongliyan@chinamobile.com>, draft-filsfils-sprin <draft-filsfils-spring-srv6-stateless-slice-id@ietf.org>, draft-ali-teas-sprin <draft-ali-teas-spring-ns-building-blocks@ietf.org>, "EXT-vishnupavan@gmail.com" <vishnupavan@gmail.com>, Adrian Farrel <adrian@olddog.co.uk>, draft-decraene-mpls- <draft-decraene-mpls-slid-encoded-entropy-label-id@ietf.org>
Thread-Topic: [Teas] More Discussion//RE: Re:Re: New term for the underlay construct used for slice realization
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/8vwGgJ0EkoaytS5R0b1MlZWDW9w>
Subject: Re: [spring] [Teas] More Discussion//RE: Re:Re: New term for the underlay construct used for slice realization
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From: Dirk Steinberg <dirk@lapishills.com>
Date: Wed, 25 Aug 2021 09:46:03 +0300
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Subject: Re: [spring] Progressing Standardizing SR over IPv6 compression
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Dear Chairs,

please excuse my late reply, I am catching up with the list after some
weeks of travel.

I strongly believe that the WG should standardize one and only one solution
for SRv6 header compression. More than one solution would mean pain
for both vendors and operators.

Based on the DT analysis it appears to me that CSID meets the
requirements and is the best solution.

I support adoption of CSID as a SRv6 header compression standard.

Dirk

On Sat, Aug 21, 2021 at 3:36 PM Darren Dukes (ddukes) <ddukes=3D
40cisco.com@dmarc.ietf.org> wrote:

> Hi chairs, I=E2=80=99m just catching up on SPRING after a few weeks away =
for
> summer vacation.
>
> Yes we should standardize one SRv6 compression proposal. CSID meets the
> requirements and I would like to see it adopted.
>
> Darren
> ------------------------------
> *From:* spring <spring-bounces@ietf.org> on behalf of Joel M. Halpern <
> jmh@joelhalpern.com>
> *Sent:* Wednesday, August 4, 2021 2:53 PM
> *To:* spring@ietf.org
> *Subject:* [spring] Progressing Standardizing SR over IPv6 compression
>
> The SPRING Working Group Chairs thank the design team for their efforts
> on the requirements and analysis drafts.  The question of how the
> working group wants to progress that part of the work will be the topic
> for a separate email a bit later.
>
> Right now, we are hearing the discussion about how many solutions, and
> the perspectives being expressed.  While the topic was well-raised, the
> discussion to date has not been structured in a way that makes clear to
> everyone what the purpose is.  In particular, the chairs have decided to
> re-ask the question.  We ask that even those who have responded in the
> discussion respond to this thread.  Preferably with both what their
> opinion is and an explanation of why.
>
> The question we are asking you to comment on is:
>
> Should the working group standardize one data plane behavior for
> compressing SRv6 information?
>
> Please speak up.  We are looking to collect responses until close of
> business PDT on 20-August-2021.
>
> Thank you,
> Joel, Jim, and Bruno
>
> _______________________________________________
> 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
>

--0000000000003d561405ca5c9b72
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Dear Chairs,<div><br></div><div>please excuse my late repl=
y, I am catching up with the list after some weeks of travel.</div><div><br=
></div><div>I strongly=C2=A0believe that the WG should standardize one and =
only one solution</div><div>for SRv6 header compression. More than one solu=
tion would mean pain</div><div>for both vendors and operators.</div><div><b=
r></div><div>Based on the DT analysis it appears to me that CSID meets the=
=C2=A0</div><div>requirements and is the best solution.=C2=A0</div><div><br=
></div><div>I support adoption of CSID as a SRv6 header compression standar=
d.</div><div><br></div><div>Dirk</div></div><br><div class=3D"gmail_quote">=
<div dir=3D"ltr" class=3D"gmail_attr">On Sat, Aug 21, 2021 at 3:36 PM Darre=
n Dukes (ddukes) &lt;ddukes=3D<a href=3D"mailto:40cisco.com@dmarc.ietf.org"=
>40cisco.com@dmarc.ietf.org</a>&gt; wrote:<br></div><blockquote class=3D"gm=
ail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,=
204,204);padding-left:1ex">



<div>
<div dir=3D"ltr">
<div></div>
<div>
<div>Hi chairs, I=E2=80=99m just catching up on SPRING after a few weeks aw=
ay for summer vacation.=C2=A0</div>
<div dir=3D"ltr"><br>
</div>
<div>Yes we should standardize one SRv6 compression proposal.=C2=A0<span st=
yle=3D"font-size:inherit">CSID meets the requirements and I would like to s=
ee it adopted.</span></div>
<div dir=3D"ltr"><br>
</div>
<div dir=3D"ltr">Darren</div>
<div id=3D"gmail-m_8435297114397761281ms-outlook-mobile-signature" dir=3D"l=
tr">
<div></div>
</div>
</div>
<div id=3D"gmail-m_8435297114397761281id-350a2933-0fc1-482c-8a57-a6a389a5ca=
f1">
<hr style=3D"display:inline-block;width:98%;font-family:-webkit-standard;fo=
nt-size:12pt;color:rgb(0,0,0)">
<div id=3D"gmail-m_8435297114397761281divRplyFwdMsg" dir=3D"ltr"><font face=
=3D"Calibri, sans-serif"><b>From:</b> spring &lt;<a href=3D"mailto:spring-b=
ounces@ietf.org" target=3D"_blank">spring-bounces@ietf.org</a>&gt; on behal=
f of Joel M. Halpern &lt;<a href=3D"mailto:jmh@joelhalpern.com" target=3D"_=
blank">jmh@joelhalpern.com</a>&gt;<br>
<b>Sent:</b> Wednesday, August 4, 2021 2:53 PM<br>
<b>To:</b> <a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf=
.org</a><br>
<b>Subject:</b> [spring] Progressing Standardizing SR over IPv6 compression
<div>=C2=A0</div>
</font></div>

<font size=3D"2"><span style=3D"font-size:11pt">
<div>The SPRING Working Group Chairs thank the design team for their effort=
s
<br>
on the requirements and analysis drafts.=C2=A0 The question of how the <br>
working group wants to progress that part of the work will be the topic <br=
>
for a separate email a bit later.<br>
<br>
Right now, we are hearing the discussion about how many solutions, and <br>
the perspectives being expressed.=C2=A0 While the topic was well-raised, th=
e <br>
discussion to date has not been structured in a way that makes clear to <br=
>
everyone what the purpose is.=C2=A0 In particular, the chairs have decided =
to <br>
re-ask the question.=C2=A0 We ask that even those who have responded in the=
 <br>
discussion respond to this thread.=C2=A0 Preferably with both what their <b=
r>
opinion is and an explanation of why.<br>
<br>
The question we are asking you to comment on is:<br>
<br>
Should the working group standardize one data plane behavior for <br>
compressing SRv6 information?<br>
<br>
Please speak up.=C2=A0 We are looking to collect responses until close of <=
br>
business PDT on 20-August-2021.<br>
<br>
Thank you,<br>
Joel, Jim, and Bruno<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" target=3D"_blank">=
https://www.ietf.org/mailman/listinfo/spring</a><br>
</div>
</span></font></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>

--0000000000003d561405ca5c9b72--


From nobody Wed Aug 25 07:05:43 2021
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From: IETF Secretariat <ietf-ipr@ietf.org>
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Subject: [spring] IPR Disclosure Huawei Technologies Co., Ltd's Statement about IPR related to draft-ietf-pce-sr-path-segment and draft-ietf-spring-mpls-path-segment
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Dear Weiqiang Cheng, Han Li, Mach Chen, Rakesh Gandhi, Royi Zigler:


An IPR disclosure that pertains to your Internet-Draft entitled "Path Segment
in MPLS Based Segment Routing Network" (draft-ietf-spring-mpls-path-segment)
was submitted to the IETF Secretariat on 2021-08-25 and has been posted on
the "IETF Page of Intellectual Property Rights Disclosures"
(https://datatracker.ietf.org/ipr/5063/). The title of the IPR disclosure is
"Huawei Technologies Co.,Ltd's Statement about IPR related to
draft-ietf-pce-sr-path-segment and draft-ietf-spring-mpls-path-segment"


Thank you

IETF Secretariat



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k-word">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif">Hi Jie,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif">See Inline, [TS2]..<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif"><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"col=
or:black">From:
</span></b><span style=3D"color:black">Dongjie (Jimmy) &lt;jie.dong@huawei.=
com&gt;<br>
<b>Date: </b>Tuesday, August 24, 2021 at 11:16 AM<br>
<b>To: </b>Tarek Saad &lt;tsaad.net@gmail.com&gt;, John E Drake &lt;jdrake@=
juniper.net&gt;, Lizhenbin &lt;lizhenbin@huawei.com&gt;, TEAS WG &lt;teas@i=
etf.org&gt;<br>
<b>Cc: </b>spring@ietf.org &lt;spring@ietf.org&gt;, mpls@ietf.org &lt;mpls@=
ietf.org&gt;, =B9=A8=C1=A2=D1=DE &lt;gongliyan@chinamobile.com&gt;, draft-f=
ilsfils-sprin &lt;draft-filsfils-spring-srv6-stateless-slice-id@ietf.org&gt=
;, draft-ali-teas-sprin &lt;draft-ali-teas-spring-ns-building-blocks@ietf.o=
rg&gt;,
 EXT-vishnupavan@gmail.com &lt;vishnupavan@gmail.com&gt;, Adrian Farrel &lt=
;adrian@olddog.co.uk&gt;, draft-decraene-mpls- &lt;draft-decraene-mpls-slid=
-encoded-entropy-label-id@ietf.org&gt;<br>
<b>Subject: </b>RE: [Teas] More Discussion//RE: Re:Re: New term for the und=
erlay construct used for slice realization<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">Hi,
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">Please see comments inline with [Jie]:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;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"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">From:<=
/span></b><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;=
Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"> Tarek Saad
 [mailto:tsaad.net@gmail.com] <br>
<b>Sent:</b> Saturday, August 21, 2021 1:05 AM<br>
<b>To:</b> John E Drake &lt;jdrake@juniper.net&gt;; Lizhenbin &lt;lizhenbin=
@huawei.com&gt;; TEAS WG &lt;teas@ietf.org&gt;<br>
<b>Cc:</b> Dongjie (Jimmy) &lt;jie.dong@huawei.com&gt;; spring@ietf.org; mp=
ls@ietf.org;
</span><span lang=3D"ZH-CN" style=3D"font-size:11.0pt;mso-fareast-language:=
ZH-CN">=B9=A8=C1=A2=D1=DE</span><span lang=3D"EN-US" style=3D"font-size:11.=
0pt;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">=
 &lt;gongliyan@chinamobile.com&gt;; draft-filsfils-sprin &lt;draft-filsfils=
-spring-srv6-stateless-slice-id@ietf.org&gt;;
 draft-ali-teas-sprin &lt;draft-ali-teas-spring-ns-building-blocks@ietf.org=
&gt;; EXT-vishnupavan@gmail.com &lt;vishnupavan@gmail.com&gt;; Adrian Farre=
l &lt;adrian@olddog.co.uk&gt;; draft-decraene-mpls- &lt;draft-decraene-mpls=
-slid-encoded-entropy-label-id@ietf.org&gt;<br>
<b>Subject:</b> Re: [Teas] More Discussion//RE: Re:Re: New term for the und=
erlay construct used for slice realization<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:Z=
H-CN"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;mso-fareast-language:ZH-CN">Hi,<o:p></o:p></span></p=
>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span>=
</p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;mso-fareast-language:ZH-CN">Comments inline..<o:p></=
o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;mso-fareast-language:ZH-CN"><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"col=
or:black;mso-fareast-language:ZH-CN">From:
</span></b><span style=3D"color:black;mso-fareast-language:ZH-CN">John E Dr=
ake &lt;<a href=3D"mailto:jdrake@juniper.net">jdrake@juniper.net</a>&gt;<br=
>
<b>Date: </b>Friday, August 20, 2021 at 9:33 AM<br>
<b>To: </b>Lizhenbin &lt;<a href=3D"mailto:lizhenbin@huawei.com">lizhenbin@=
huawei.com</a>&gt;, TEAS WG &lt;<a href=3D"mailto:teas@ietf.org">teas@ietf.=
org</a>&gt;<br>
<b>Cc: </b>Dongjie (Jimmy) &lt;<a href=3D"mailto:jie.dong@huawei.com">jie.d=
ong@huawei.com</a>&gt;,
<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a> &lt;<a href=3D"mailt=
o:spring@ietf.org">spring@ietf.org</a>&gt;,
<a href=3D"mailto:mpls@ietf.org">mpls@ietf.org</a> &lt;<a href=3D"mailto:mp=
ls@ietf.org">mpls@ietf.org</a>&gt;,
<span lang=3D"ZH-CN">=B9=A8=C1=A2=D1=DE</span> &lt;<a href=3D"mailto:gongli=
yan@chinamobile.com">gongliyan@chinamobile.com</a>&gt;, draft-filsfils-spri=
n &lt;<a href=3D"mailto:draft-filsfils-spring-srv6-stateless-slice-id@ietf.=
org">draft-filsfils-spring-srv6-stateless-slice-id@ietf.org</a>&gt;,
 draft-ali-teas-sprin &lt;<a href=3D"mailto:draft-ali-teas-spring-ns-buildi=
ng-blocks@ietf.org">draft-ali-teas-spring-ns-building-blocks@ietf.org</a>&g=
t;,
<a href=3D"mailto:EXT-vishnupavan@gmail.com">EXT-vishnupavan@gmail.com</a> =
&lt;<a href=3D"mailto:vishnupavan@gmail.com">vishnupavan@gmail.com</a>&gt;,=
 Adrian Farrel &lt;<a href=3D"mailto:adrian@olddog.co.uk">adrian@olddog.co.=
uk</a>&gt;, Tarek Saad &lt;<a href=3D"mailto:tsaad.net@gmail.com">tsaad.net=
@gmail.com</a>&gt;,
 draft-decraene-mpls- &lt;<a href=3D"mailto:draft-decraene-mpls-slid-encode=
d-entropy-label-id@ietf.org">draft-decraene-mpls-slid-encoded-entropy-label=
-id@ietf.org</a>&gt;<br>
<b>Subject: </b>RE: [Teas] More Discussion//RE: Re:Re: New term for the und=
erlay construct used for slice realization<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">Hi,<o:p><=
/o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">Comments =
inline.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&nbs=
p;</o:p></span></p>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">Yours Irr=
espectively,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">John<o:p>=
</o:p></span></p>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0cm;text-a=
lign:center">
<span lang=3D"EN-US" style=3D"font-size:7.0pt;font-family:&quot;Calibri&quo=
t;,sans-serif;color:black;mso-fareast-language:ZH-CN">Juniper Business Use =
Only</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p><=
/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"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">From:<=
/span></b><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;=
Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"> Teas &lt;<a href=3D"m=
ailto:teas-bounces@ietf.org">teas-bounces@ietf.org</a>&gt;
<b>On Behalf Of </b>Lizhenbin<br>
<b>Sent:</b> Thursday, August 19, 2021 1:05 PM<br>
<b>To:</b> TEAS WG &lt;<a href=3D"mailto:teas@ietf.org">teas@ietf.org</a>&g=
t;<br>
<b>Cc:</b> Dongjie (Jimmy) &lt;<a href=3D"mailto:jie.dong@huawei.com">jie.d=
ong@huawei.com</a>&gt;;
<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>; <a href=3D"mailto:m=
pls@ietf.org">
mpls@ietf.org</a>; </span><span lang=3D"ZH-CN" style=3D"font-size:11.0pt;fo=
nt-family:&quot;Microsoft JhengHei&quot;,sans-serif;mso-fareast-language:ZH=
-CN">=B9=A8=C1=A2=D1=DE</span><span lang=3D"EN-US" style=3D"font-size:11.0p=
t;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"> &=
lt;<a href=3D"mailto:gongliyan@chinamobile.com">gongliyan@chinamobile.com</=
a>&gt;;
 draft-filsfils-sprin &lt;<a href=3D"mailto:draft-filsfils-spring-srv6-stat=
eless-slice-id@ietf.org">draft-filsfils-spring-srv6-stateless-slice-id@ietf=
.org</a>&gt;; draft-ali-teas-sprin &lt;<a href=3D"mailto:draft-ali-teas-spr=
ing-ns-building-blocks@ietf.org">draft-ali-teas-spring-ns-building-blocks@i=
etf.org</a>&gt;;
<a href=3D"mailto:EXT-vishnupavan@gmail.com">EXT-vishnupavan@gmail.com</a> =
&lt;<a href=3D"mailto:vishnupavan@gmail.com">vishnupavan@gmail.com</a>&gt;;=
 Adrian Farrel &lt;<a href=3D"mailto:adrian@olddog.co.uk">adrian@olddog.co.=
uk</a>&gt;; Tarek Saad &lt;<a href=3D"mailto:tsaad.net@gmail.com">tsaad.net=
@gmail.com</a>&gt;;
 draft-decraene-mpls- &lt;<a href=3D"mailto:draft-decraene-mpls-slid-encode=
d-entropy-label-id@ietf.org">draft-decraene-mpls-slid-encoded-entropy-label=
-id@ietf.org</a>&gt;<br>
<b>Subject:</b> [Teas] More Discussion//RE: Re:Re: New term for the underla=
y construct used for slice realization<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:Z=
H-CN"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"line-height:12.0pt;background:#FFEB9C"><b><=
span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Lato&quot;,=
sans-serif;color:black;mso-fareast-language:ZH-CN">[External Email. Be caut=
ious of content]<o:p></o:p></span></b></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&nbs=
p;</o:p></span></p>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">Hi Folks,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">The =A1=B0new term=A1=B1 discussion has been lasted for a while, thank=
s to all who participated in the discussion.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">So far it seems there are some rough consensus about this =A1=B0new te=
rm=A1=B1 (maybe I am wrong) :<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">1. It is better to have a neutral term, which allows this underlay con=
struct to be used for both network slice services
 and other types of services.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">2. It seems =A1=B0resource group=A1=B1 receives more support than othe=
r candidates.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:=
p>&nbsp;</o:p></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">[JD=
]&nbsp; Making these conclusions is the co-chairs=A1=AF job.<o:p></o:p></sp=
an></i></b></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:14.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:14.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">[TS]: +1<=
o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">Here I=A1=AFd also like to share some considerations and doubts about =
the underlay construct used for slice realization:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">1. Before this discussion happens, it seems many network slicing relat=
ed drafts use =A1=B0slice=A1=B1 in their terms which refer
 to this underlay construct. However, through this new term discussion, it =
seems most people indicate they prefer a neutral term than a slice specific=
 term. Thus I expect the authors of the related drafts to provide more feed=
back about this point and indicate
 whether they agree with the choice of a neutral term.<o:p></o:p></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">2. As mentioned several times during the discussion, this underlay con=
struct has both the topology and resource attributes.
 With the term =A1=B0resource group=A1=B1, it is clear that it is a set of =
network resources, then how about the topology attribute? Is the topology a=
ttribute also included in the =A1=B0resource group=A1=B1?
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:=
p>&nbsp;</o:p></span></i></b></p>
<p class=3D"MsoNormal" style=3D"margin-left:9.6pt"><b><i><span lang=3D"EN-U=
S" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;mso=
-fareast-language:ZH-CN">[JD]&nbsp; There are two separate concepts:<o:p></=
o:p></span></i></b></p>
<p class=3D"MsoNormal" style=3D"margin-left:9.6pt"><b><i><span lang=3D"EN-U=
S" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;mso=
-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></i></b></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:27.6pt;text-indent:-18.0=
pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt;f=
ont-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><span=
 style=3D"mso-list:Ignore">1)<span style=3D"font:7.0pt &quot;Times New Roma=
n&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span></i></b><![endif]><b><i><span lang=3D"EN-US" style=3D"=
font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-lan=
guage:ZH-CN">Resource Partition - a subset of an underlay network link's bu=
ffer/queuing/scheduling resources used to enable
 the underlay network to have finer grained control of its data plane.<o:p>=
</o:p></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:=
p>&nbsp;</o:p></span></i></b></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:27.6pt;text-indent:-18.0=
pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt;f=
ont-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><span=
 style=3D"mso-list:Ignore">2)<span style=3D"font:7.0pt &quot;Times New Roma=
n&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span></i></b><![endif]><b><i><span lang=3D"EN-US" style=3D"=
font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-lan=
guage:ZH-CN">Combining these resource partitions into a topology in the und=
erlay network, for which I was using the term
 'partitioned underlay network topology'.<o:p></o:p></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:14.0pt=
;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:=
p>&nbsp;</o:p></span></i></b></p>
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"font-size:14.0pt;fo=
nt-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&=
nbsp;</o:p></span></b></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;mso-fareast-language:ZH-CN">[TS]: I suggested append=
ing network =A8C i.e. =A1=B0network resource partition=A1=B1 as more suitab=
le to indicate resources are over an underlay =A1=B0network=A1=B1 vs.
 a resource partition over a single link.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN"><o:p>&nbsp=
;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">[Jie] Whil=
e I understand the intent here is to indicate that the resource partitions =
are spread over the network, however =A1=B0network
 resource partition=A1=B1 could be interpreted as =A1=B0partition of networ=
k resources (e.g. buffer/queue/scheduling resources)=A1=B1, which does not =
convey the information we need.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN"><o:p>&nbsp=
;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Perhaps a =
more explicit approach is to put network in the end: resource partitioned n=
etwork (or sub-network), so that it is clear that
 the resource partitions are spread over the network with a sub-topology. <=
o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span>=
</p>
<p class=3D"MsoNormal"><i><span style=3D"font-size:14.0pt;font-family:&quot=
;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">[TS2]: The =A1=B0netw=
ork=A1=B1 here is to define the =A1=B0scope=A1=B1 of the resource group (or=
 partition) and not connectivity. Hence, I favor =A1=B0network=A1=B1 being =
as
 a prefix.<o:p></o:p></span></i></p>
<p class=3D"MsoNormal" style=3D"margin-left:4.8pt"><b><i><span lang=3D"EN-U=
S" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;col=
or:#1F497D;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:10.5pt=
;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-langu=
age:ZH-CN"><o:p>&nbsp;</o:p></span></i></b></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">3. What is the intended scope of resource group? More specifically, is=
 a point-to-point path or a P2MP path with a set
 of reserved network resource a resource group? In history, RSVP-TE was use=
d to set up resource reserved point-to-point TE paths and P2MP TE paths. Mo=
re recently, there is effort in DetNet WG on the mechanisms to set up deter=
ministic data paths. Can these paths
 be considered as resource groups? &nbsp;Can we further classify them into =
different P2P resource group, P2MP resource group, or MP2MP resource group?=
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:=
p>&nbsp;</o:p></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">[JD=
]&nbsp; The connectivity constructs of a given IETF network slice service c=
an be implemented in the underlay network using whatever
 technologies the provider wishes to use.&nbsp; A given resource partition =
can support multiple connectivity constructs of any type.<o:p></o:p></span>=
</i></b></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:=
p>&nbsp;</o:p></span></i></b></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;mso-fareast-language:ZH-CN">[TS]: I agree here. Diff=
erent connectivity types can be realized over the same network resource par=
tition</span><span style=3D"mso-fareast-language:ZH-CN">
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN"><o:p>&nbsp=
;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">[Jie] Then=
 my understanding is this underlay construct always provide any-to-any conn=
ectivity between the edge nodes, which can be
 used to deliver services with any connectivity type. Is this correct?<o:p>=
</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span>=
</p>
<p class=3D"MsoNormal"><i><span style=3D"font-size:14.0pt;font-family:&quot=
;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">[TS2]: The resources =
may be connected (in different ways) to provide any type of connectivity.<o=
:p></o:p></span></i></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:14.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">4. A more subtle question is, what is the relationship between resourc=
e group and TE? Is resource group a construct under
 the TE architecture, or is there some overlap between them?</span><span la=
ng=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,sans=
-serif;mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">[JD=
]&nbsp; Resource partitions just provide an enhanced underlay network topol=
ogy to which a provider can apply TE if they so desire.<o:p></o:p></span></=
i></b></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-US" style=3D"font-size:14.0pt=
;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:=
p>&nbsp;</o:p></span></i></b></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;mso-fareast-language:ZH-CN">[TS]: TE can be done ove=
r the resources that a network resource partition can offer =A8C for exampl=
e, to optimally place paths over the remaining resources
 of network resource partition.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN"><o:p>&nbsp=
;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">[Jie] This=
 may be related to the definition of TE. Is resource partition or reservati=
on one of the components of TE? I hope we can
 get some answer from 3272bis.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN"><o:p>&nbsp=
;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">We used to=
 define the TE-LSP as something with which we can specify the path and the =
set of resources reserved along the path. Following
 this, the underlay construct we are discussing can be used to specify the =
topology and the set of resources reserved in the topology. &nbsp;If we cal=
l the TE-LSP a =A1=B0TE path=A1=B1, maybe we can call this underlay constru=
ct a =A1=B0TE network=A1=B1 or =A1=B0virtual TE network=A1=B1. Then
 TE paths can be provisioned in the virtual TE network, just like how the T=
E paths are provisioned in the physical network.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span>=
</p>
<p class=3D"MsoNormal"><i><span style=3D"font-size:14.0pt;font-family:&quot=
;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">[TS2]: AFAICS, the te=
rm we=A1=AFre defining describes a set of resources in a network and, hence=
, it is orthogonal to the TE discussion.<o:p></o:p></span></i></p>
<p class=3D"MsoNormal"><i><span style=3D"font-size:14.0pt;font-family:&quot=
;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></sp=
an></i></p>
<p class=3D"MsoNormal"><i><span style=3D"font-size:14.0pt;font-family:&quot=
;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">Regards,<o:p></o:p></=
span></i></p>
<p class=3D"MsoNormal"><i><span style=3D"font-size:14.0pt;font-family:&quot=
;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">Tarek<o:p></o:p></spa=
n></i></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span>=
</p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Best regar=
ds,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Jie<o:p></=
o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span>=
</p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;mso-fareast-language:ZH-CN">Regards,<o:p></o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"font-size:14.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;mso-fareast-language:ZH-CN">Tarek<o:p></o:p></span><=
/p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:14.0pt;font-=
family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">Wish to learn your thoughts on these considerations and doubts.<o:p></=
o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">Robin<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;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"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">From:<=
/span></b><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;=
Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN"> Lizhenbin
<br>
<b>Sent:</b> Tuesday, August 17, 2021 10:29 PM<br>
<b>To:</b> '</span><span lang=3D"ZH-CN" style=3D"font-size:11.0pt;mso-farea=
st-language:ZH-CN">=B9=A8=C1=A2=D1=DE</span><span lang=3D"EN-US" style=3D"f=
ont-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-lang=
uage:ZH-CN">' &lt;<a href=3D"mailto:gongliyan@chinamobile.com">gongliyan@ch=
inamobile.com</a>&gt;;
 draft-ali-teas-sprin &lt;<a href=3D"mailto:draft-ali-teas-spring-ns-buildi=
ng-blocks@ietf.org">draft-ali-teas-spring-ns-building-blocks@ietf.org</a>&g=
t;; draft-filsfils-sprin &lt;<a href=3D"mailto:draft-filsfils-spring-srv6-s=
tateless-slice-id@ietf.org">draft-filsfils-spring-srv6-stateless-slice-id@i=
etf.org</a>&gt;;
 draft-decraene-mpls- &lt;<a href=3D"mailto:draft-decraene-mpls-slid-encode=
d-entropy-label-id@ietf.org">draft-decraene-mpls-slid-encoded-entropy-label=
-id@ietf.org</a>&gt;<br>
<b>Cc:</b> Dongjie (Jimmy) &lt;<a href=3D"mailto:jie.dong@huawei.com">jie.d=
ong@huawei.com</a>&gt;;
<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>; <a href=3D"mailto:m=
pls@ietf.org">
mpls@ietf.org</a>; TEAS WG &lt;<a href=3D"mailto:teas@ietf.org">teas@ietf.o=
rg</a>&gt;; EXT-vishnupavan@gmai &lt;<a href=3D"mailto:vishnupavan@gmail.co=
m">vishnupavan@gmail.com</a>&gt;; Adrian Farrel &lt;<a href=3D"mailto:adria=
n@olddog.co.uk">adrian@olddog.co.uk</a>&gt;; Tarek Saad
 &lt;<a href=3D"mailto:tsaad.net@gmail.com">tsaad.net@gmail.com</a>&gt;<br>
<b>Subject:</b> RE: Re:Re: [Teas] New term for the underlay construct used =
for slicerealization<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:Z=
H-CN"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">Hi Liyan,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">Sorry that I missed your new draft. Thanks for your feedback. It is he=
lpful for us to have a common terminology.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN">Robin<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;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;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH=
-CN"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">From:<=
/span></b><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;=
Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">
</span><span lang=3D"ZH-CN" style=3D"font-size:11.0pt;mso-fareast-language:=
ZH-CN">=B9=A8=C1=A2=D1=DE</span><span lang=3D"EN-US" style=3D"font-size:11.=
0pt;font-family:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">=
 [<a href=3D"mailto:gongliyan@chinamobile.com">mailto:gongliyan@chinamobile=
.com</a>]
<br>
<b>Sent:</b> Tuesday, August 17, 2021 4:48 PM<br>
<b>To:</b> Lizhenbin &lt;<a href=3D"mailto:lizhenbin@huawei.com">lizhenbin@=
huawei.com</a>&gt;; draft-ali-teas-sprin &lt;<a href=3D"mailto:draft-ali-te=
as-spring-ns-building-blocks@ietf.org">draft-ali-teas-spring-ns-building-bl=
ocks@ietf.org</a>&gt;; draft-filsfils-sprin &lt;<a href=3D"mailto:draft-fil=
sfils-spring-srv6-stateless-slice-id@ietf.org">draft-filsfils-spring-srv6-s=
tateless-slice-id@ietf.org</a>&gt;;
 draft-decraene-mpls- &lt;<a href=3D"mailto:draft-decraene-mpls-slid-encode=
d-entropy-label-id@ietf.org">draft-decraene-mpls-slid-encoded-entropy-label=
-id@ietf.org</a>&gt;<br>
<b>Cc:</b> Dongjie (Jimmy) &lt;<a href=3D"mailto:jie.dong@huawei.com">jie.d=
ong@huawei.com</a>&gt;;
<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>; <a href=3D"mailto:m=
pls@ietf.org">
mpls@ietf.org</a>; TEAS WG &lt;<a href=3D"mailto:teas@ietf.org">teas@ietf.o=
rg</a>&gt;; EXT-vishnupavan@gmai &lt;<a href=3D"mailto:vishnupavan@gmail.co=
m">vishnupavan@gmail.com</a>&gt;; Adrian Farrel &lt;<a href=3D"mailto:adria=
n@olddog.co.uk">adrian@olddog.co.uk</a>&gt;; Tarek Saad
 &lt;<a href=3D"mailto:tsaad.net@gmail.com">tsaad.net@gmail.com</a>&gt;<br>
<b>Subject:</b> Re:Re: [Teas] New term for the underlay construct used for =
slicerealization<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:Z=
H-CN"><o:p>&nbsp;</o:p></span></p>
<p><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">Hi All</span><=
span lang=3D"ZH-CN" style=3D"font-family:&quot;MS Gothic&quot;;mso-fareast-=
language:ZH-CN">=A3=AC</span><span lang=3D"EN-US" style=3D"mso-fareast-lang=
uage:ZH-CN"><o:p></o:p></span></p>
<p><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">The draft-chen=
g-spring-srv6-encoding-network-sliceid[1] also provided a slice ID encoding=
 solution.<o:p></o:p></span></p>
<p><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">And about the =
discussion, we are fine to follow the final decision of the WG, no special =
requirements.<o:p></o:p></span></p>
<p><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p>&nbsp;</o=
:p></span></p>
<p><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">[1] <a href=3D=
"https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/draft-cheng-sp=
ring-srv6-encoding-network-sliceid/__;!!NEt6yMaO-gk!UEzcMT5c8gj3IM4YTjtt3_c=
AKLDIdvWjVnDnaMVJtcpFKSjgsNrS6x9I2VZ2kRs$">
https://datatracker.ietf.org/doc/draft-cheng-spring-srv6-encoding-network-s=
liceid/</a><o:p></o:p></span></p>
<p><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p>&nbsp;</o=
:p></span></p>
<p><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">Best Regards,<=
o:p></o:p></span></p>
<p><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">Liyan Gong<o:p=
></o:p></span></p>
<div id=3D"divsignature">
<p><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p>&nbsp;</o=
:p></span></p>
</div>
<blockquote style=3D"margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;ma=
rgin-bottom:5.0pt" id=3D"oriMsgHtmlSeperator">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:Z=
H-CN">----</span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=
=D3=CA=BC=FE=D4=AD=CE=C4</span><span lang=3D"EN-US" style=3D"mso-fareast-la=
nguage:ZH-CN">----<br>
</span><strong><span lang=3D"ZH-CN" style=3D"font-family:SimSun;mso-fareast=
-language:ZH-CN">=B7=A2=BC=FE=C8=CB=A3=BA</span></strong><span lang=3D"EN-U=
S" style=3D"mso-fareast-language:ZH-CN">Lizhenbin&nbsp;&nbsp;&lt;<a href=3D=
"mailto:lizhenbin@huawei.com">lizhenbin@huawei.com</a>&gt;<br>
</span><strong><span lang=3D"ZH-CN" style=3D"font-family:SimSun;mso-fareast=
-language:ZH-CN">=CA=D5=BC=FE=C8=CB=A3=BA</span></strong><span lang=3D"EN-U=
S" style=3D"mso-fareast-language:ZH-CN">&quot;<a href=3D"mailto:draft-ali-t=
eas-spring-ns-building-blocks@ietf.org">draft-ali-teas-spring-ns-building-b=
locks@ietf.org</a>&quot;&nbsp;&lt;<a href=3D"mailto:draft-ali-teas-spring-n=
s-building-blocks@ietf.org">draft-ali-teas-spring-ns-building-blocks@ietf.o=
rg</a>&gt;,&quot;<a href=3D"mailto:draft-filsfils-spring-srv6-stateless-sli=
ce-id@ietf.org">draft-filsfils-spring-srv6-stateless-slice-id@ietf.org</a>&=
quot;&nbsp;&lt;<a href=3D"mailto:draft-filsfils-spring-srv6-stateless-slice=
-id@ietf.org">draft-filsfils-spring-srv6-stateless-slice-id@ietf.org</a>&gt=
;,&quot;<a href=3D"mailto:draft-decraene-mpls-slid-encoded-entropy-label-id=
@ietf.org">draft-decraene-mpls-slid-encoded-entropy-label-id@ietf.org</a>&q=
uot;&nbsp;&lt;<a href=3D"mailto:draft-decraene-mpls-slid-encoded-entropy-la=
bel-id@ietf.org">draft-decraene-mpls-slid-encoded-entropy-label-id@ietf.org=
</a>&gt;<br>
</span><strong><span lang=3D"ZH-CN" style=3D"font-family:SimSun;mso-fareast=
-language:ZH-CN">=B3=AD=A1=A1=CB=CD</span></strong><strong><span lang=3D"EN=
-US" style=3D"font-family:SimSun;mso-fareast-language:ZH-CN">:
</span></strong><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&=
quot;Dongjie&nbsp;<a href=3D"file:///(Jimmy/)">\\(Jimmy\\)</a>&quot;&nbsp;&=
lt;<a href=3D"mailto:jie.dong@huawei.com">jie.dong@huawei.com</a>&gt;,&quot=
;<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&quot;&nbsp;&lt;<a h=
ref=3D"mailto:spring@ietf.org">spring@ietf.org</a>&gt;,&quot;<a href=3D"mai=
lto:mpls@ietf.org">mpls@ietf.org</a>&quot;&nbsp;&lt;<a href=3D"mailto:mpls@=
ietf.org">mpls@ietf.org</a>&gt;,TEAS&nbsp;WG&nbsp;&nbsp;&lt;<a href=3D"mail=
to:teas@ietf.org">teas@ietf.org</a>&gt;,John&nbsp;E&nbsp;Drake&nbsp;&nbsp;&=
lt;<a href=3D"mailto:jdrake=3D40juniper.net@dmarc.ietf.org">jdrake=3D40juni=
per.net@dmarc.ietf.org</a>&gt;,&quot;<a href=3D"mailto:EXT-vishnupavan@gmai=
l.com">EXT-vishnupavan@gmail.com</a>&quot;&nbsp;&lt;<a href=3D"mailto:vishn=
upavan@gmail.com">vishnupavan@gmail.com</a>&gt;,Adrian&nbsp;Farrel&nbsp;&nb=
sp;&lt;<a href=3D"mailto:adrian@olddog.co.uk">adrian@olddog.co.uk</a>&gt;,T=
arek&nbsp;Saad&nbsp;&nbsp;&lt;<a href=3D"mailto:tsaad.net@gmail.com">tsaad.=
net@gmail.com</a>&gt;<br>
</span><strong><span lang=3D"ZH-CN" style=3D"font-family:SimSun;mso-fareast=
-language:ZH-CN">=B7=A2=CB=CD=CA=B1=BC=E4=A3=BA</span></strong><span lang=
=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">2021-08-17 00:04:32<br>
</span><strong><span lang=3D"ZH-CN" style=3D"font-family:SimSun;mso-fareast=
-language:ZH-CN">=D6=F7=CC=E2=A3=BA</span></strong><span lang=3D"EN-US" sty=
le=3D"mso-fareast-language:ZH-CN">Re:&nbsp;[Teas]&nbsp;New&nbsp;term&nbsp;f=
or&nbsp;the&nbsp;underlay&nbsp;construct&nbsp;used&nbsp;for&nbsp;slicereali=
zation<br>
<br>
&nbsp; &nbsp;<o:p></o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Hi author=
s of draft-ali-teas-spring-ns-building-blocks/draft-filsfils-spring-srv6-st=
ateless-slice-id/draft-decraene-mpls-slid-encoded-entropy-label-id,</span><=
span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span>=
</p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">It is kno=
wn that your drafts are also related with the underlay
 construct used for slice realization. It also seems that you use the term =
with =A1=B0slice=A1=B1 &nbsp;for the underlay construct. In the discussion =
of TEAS WG, there is some consensus to define a neutral new term without =
=A1=B0slice=A1=B1. &nbsp;Wish to learn your opinions on the new
 term definition and there would be a convergence on the new term after you=
r participating &nbsp;in the discussion.</span><span lang=3D"EN-US" style=
=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Best Rega=
rds,</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p><=
/o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Robin</sp=
an><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><strong><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family=
:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">From:</span></s=
trong><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;Cali=
bri&quot;,sans-serif;mso-fareast-language:ZH-CN">
 Teas [<a href=3D"mailto:teas-bounces@ietf.org">mailto:teas-bounces@ietf.or=
g</a>] <strong>
<span style=3D"font-family:&quot;Calibri&quot;,sans-serif">On Behalf Of </s=
pan></strong>John E Drake<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Sent:</s=
pan></strong> Monday, August 16, 2021 8:53 PM<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">To:</spa=
n></strong> Dongjie (Jimmy) &lt;<a href=3D"mailto:jie.dong@huawei.com">jie.=
dong@huawei.com</a>&gt;;
<a href=3D"mailto:EXT-vishnupavan@gmail.com">EXT-vishnupavan@gmail.com</a> =
&lt;<a href=3D"mailto:vishnupavan@gmail.com">vishnupavan@gmail.com</a>&gt;;=
 Adrian Farrel &lt;<a href=3D"mailto:adrian@olddog.co.uk">adrian@olddog.co.=
uk</a>&gt;<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Cc:</spa=
n></strong> Tarek Saad &lt;<a href=3D"mailto:tsaad.net@gmail.com">tsaad.net=
@gmail.com</a>&gt;; TEAS WG &lt;<a href=3D"mailto:teas@ietf.org">teas@ietf.=
org</a>&gt;<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Subject:=
</span></strong> Re: [Teas] New term for the underlay construct used for sl=
ice realization</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH=
-CN"><o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif;mso-fareast-language:ZH-CN">Hi,</span><span lang=3D=
"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif;mso-fareast-language:ZH-CN">&nbsp;</span><span lang=
=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif;mso-fareast-language:ZH-CN">It sounds like slice ag=
gregates, or more generally overlay network service
 aggregates, are the things which use resource partitions.</span><span lang=
=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif;mso-fareast-language:ZH-CN">&nbsp;</span><span lang=
=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif;mso-fareast-language:ZH-CN">Yours Irrespectively,</=
span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p><=
/span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif;mso-fareast-language:ZH-CN">&nbsp;</span><span lang=
=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif;mso-fareast-language:ZH-CN">John</span><span lang=
=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif;mso-fareast-language:ZH-CN">&nbsp;</span><span lang=
=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif;mso-fareast-language:ZH-CN">&nbsp;</span><span lang=
=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0cm;text-a=
lign:center">
<span lang=3D"EN-US" style=3D"font-size:7.0pt;color:black;mso-fareast-langu=
age:ZH-CN">Juniper Business Use Only</span><span lang=3D"EN-US" style=3D"ms=
o-fareast-language:ZH-CN"><o:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><strong><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family=
:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">From:</span></s=
trong><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;Cali=
bri&quot;,sans-serif;mso-fareast-language:ZH-CN">
 Teas &lt;<a href=3D"mailto:teas-bounces@ietf.org">teas-bounces@ietf.org</a=
>&gt; <strong>
<span style=3D"font-family:&quot;Calibri&quot;,sans-serif">On Behalf Of </s=
pan></strong>Dongjie (Jimmy)<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Sent:</s=
pan></strong> Friday, August 13, 2021 9:20 AM<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">To:</spa=
n></strong> <a href=3D"mailto:EXT-vishnupavan@gmail.com">
EXT-vishnupavan@gmail.com</a> &lt;<a href=3D"mailto:vishnupavan@gmail.com">=
vishnupavan@gmail.com</a>&gt;; Adrian Farrel &lt;<a href=3D"mailto:adrian@o=
lddog.co.uk">adrian@olddog.co.uk</a>&gt;<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Cc:</spa=
n></strong> Tarek Saad &lt;<a href=3D"mailto:tsaad.net@gmail.com">tsaad.net=
@gmail.com</a>&gt;; TEAS WG &lt;<a href=3D"mailto:teas@ietf.org">teas@ietf.=
org</a>&gt;<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Subject:=
</span></strong> Re: [Teas] New term for the underlay construct used for sl=
ice realization</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH=
-CN"><o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&nbsp;<o=
:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:12.0pt;background:#FFEB9C">
<strong><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;La=
to&quot;,sans-serif;color:black;mso-fareast-language:ZH-CN">[External Email=
. Be cautious of content]</span></strong><span lang=3D"EN-US" style=3D"mso-=
fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,sans-serif;mso-fareast-language:ZH-CN">&nbsp;</span><span lang=
=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Hi Pavan,
</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p=
></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Sorry for=
 chiming in, please see some comments inline:</span><span lang=3D"EN-US" st=
yle=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><strong><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family=
:&quot;Calibri&quot;,sans-serif;mso-fareast-language:ZH-CN">From:</span></s=
trong><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;Cali=
bri&quot;,sans-serif;mso-fareast-language:ZH-CN">
 Teas [<a href=3D"mailto:teas-bounces@ietf.org">mailto:teas-bounces@ietf.or=
g</a>] <strong>
<span style=3D"font-family:&quot;Calibri&quot;,sans-serif">On Behalf Of </s=
pan></strong>Vishnu Pavan Beeram<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Sent:</s=
pan></strong> Friday, August 13, 2021 1:32 AM<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">To:</spa=
n></strong> Adrian Farrel &lt;<a href=3D"mailto:adrian@olddog.co.uk">adrian=
@olddog.co.uk</a>&gt;<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Cc:</spa=
n></strong> Tarek Saad &lt;<a href=3D"mailto:tsaad.net@gmail.com">tsaad.net=
@gmail.com</a>&gt;; TEAS WG &lt;<a href=3D"mailto:teas@ietf.org">teas@ietf.=
org</a>&gt;<br>
<strong><span style=3D"font-family:&quot;Calibri&quot;,sans-serif">Subject:=
</span></strong> Re: [Teas] New term for the underlay construct used for sl=
ice realization</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH=
-CN"><o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&nbsp;<o=
:p></o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">** As a =
WG participant.. **<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><br>
Adrian, Hi!<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><br>
Thanks for your earlier emails in this thread that have helped drill down t=
he discussion to the specific item that needs a fresh term!<br>
Please see inline (prefixed VPB).<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><br>
-Pavan (as a WG participant)<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&nbsp;<o=
:p></o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">On Thu, =
Aug 12, 2021 at 10:05 AM Adrian Farrel &lt;<a href=3D"mailto:adrian@olddog.=
co.uk">adrian@olddog.co.uk</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-top:5.0pt;margin-right:0cm;margin-=
bottom:5.0pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">Thanks f=
or your useful opinion, Tarek.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">I have n=
o objection to the use of the word
</span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=B0</sp=
an><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">aggregate</spa=
n><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=B1</span><s=
pan lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">.
 It is generally used to express grouping together to treat as a single ent=
ity or to be treated in the same way.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">But I do=
 like
</span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=B0</sp=
an><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">foo aggregate<=
/span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=B1</spa=
n><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">
 to mean that a number of foo have been aggregated.<o:p></o:p></span></p>
</div>
</div>
</blockquote>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&nbsp;<o=
:p></o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">[VPB]&nb=
sp;But, that isn</span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:Z=
H-CN">=A1=AF</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN=
">t
 necessarily how IETF has been using the term </span><span lang=3D"ZH-CN" s=
tyle=3D"mso-fareast-language:ZH-CN">=A1=B0</span><span lang=3D"EN-US" style=
=3D"mso-fareast-language:ZH-CN">aggregate</span><span lang=3D"ZH-CN" style=
=3D"mso-fareast-language:ZH-CN">=A1=B1</span><span lang=3D"EN-US" style=3D"=
mso-fareast-language:ZH-CN">.
 &nbsp;</span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=
=B0</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">Behavio=
r Aggregate</span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN"=
>=A1=B1</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">
 (as defined in IETF) doesn</span><span lang=3D"ZH-CN" style=3D"mso-fareast=
-language:ZH-CN">=A1=AF</span><span lang=3D"EN-US" style=3D"mso-fareast-lan=
guage:ZH-CN">t mean aggregating behaviors. The same goes for
</span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=B0</sp=
an><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">Treatment Aggr=
egate</span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=
=B1</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">.
 Behavior Aggregate (the way we read/interpret it) is an aggregate with a s=
pecific behavior.&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 lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">[Jie] I j=
ust checked the definition of the =A1=B0aggregate=A1=B1 related
 terms in the RFCs:</span><span lang=3D"EN-US" style=3D"mso-fareast-languag=
e:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:4.8pt;text-indent:10.5pt">
<span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&qu=
ot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Behavior Aggregate=
 (defined in RFC 2474): a collection of packets with the same codepoint cro=
ssing a &nbsp;link in a particular direction.=A1=B1</span><span lang=3D"EN-=
US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:4.8pt;text-indent:10.5pt">
<span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&qu=
ot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</span><span=
 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:4.8pt;text-indent:10.5pt">
<span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&qu=
ot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Traffic Aggregate =
(defined in RFC 3086): a collection of packets with a codepoint that maps t=
o the same &nbsp;PHB, usually in a DS domain or some
 subset of a DS domain.</span><span lang=3D"EN-US" style=3D"mso-fareast-lan=
guage:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:4.8pt;text-indent:10.5pt">
<span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&qu=
ot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</span><span=
 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:4.8pt;text-indent:10.5pt">
<span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&qu=
ot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Treatment Aggregat=
e (defined in RFC 5127): This term is defined as the aggregate of Diffserv =
service &nbsp;classes.&nbsp; A treatment aggregate is concerned
 only with the forwarding treatment of the aggregated traffic, &nbsp;which =
may be marked with multiple DSCPs.</span><span lang=3D"EN-US" style=3D"mso-=
fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">My readin=
g of these definitions is that =A1=B0aggregate=A1=B1 here means
 either aggregated packets or aggregated service classes which are treated =
in the same &nbsp;way on a particular node or link.</span><span lang=3D"EN-=
US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">While wha=
t we want to describe with the new term IMO is =A1=B0a
 group of network resources allocated on a set of network nodes and links=
=A1=B1. Such group &nbsp;of resources can be provisioned in different place=
s of the network and are organized together to provide a specific network-l=
evel behavior.
</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p=
></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Thus the =
key information to be delivered with the new term
 is =A1=B0a group of organized resources in the network=A1=B1, rather than =
=A1=B0aggregated behavior at &nbsp;a particular point=A1=B1.</span><span la=
ng=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">&nbsp;</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Best rega=
rds,</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p><=
/o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;C=
alibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:ZH-CN">Jie</span=
><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN"><o:p></o:p></spa=
n></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-top:5.0pt;margin-right:0cm;margin-=
bottom:5.0pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">So
</span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=B0</sp=
an><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">slice aggregat=
e</span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=B1</s=
pan><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">
 would be an aggregation of slices. Your use in I-D.draft-bestbar-teas-ns-p=
acket is, therefore, confusing. If the slices are *<strong><span style=3D"f=
ont-family:SimSun">not</span></strong>* separated out into different flows =
(or traffic streams) then, yes, you
 are aggregating slices. But if the slices are separated out, as you descri=
be, &nbsp;then what you have is
</span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=B0</sp=
an><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">IETF network s=
lice traffic stream aggregation</span><span lang=3D"ZH-CN" style=3D"mso-far=
east-language:ZH-CN">=A1=B1</span><span lang=3D"EN-US" style=3D"mso-fareast=
-language:ZH-CN">.<o:p></o:p></span></p>
</div>
</div>
</blockquote>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&nbsp;<o=
:p></o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">[VPB]&nb=
sp;Yes. The definition of the slice aggregate (as defined in draft-bestbar-=
teas-ns-packet) does state that the&nbsp;slice aggregate&nbsp;comprises
 of one or more IETF network slice traffic streams.&nbsp; We could have cho=
sen a longer &nbsp;descriptive name, but opted to keep it short.<o:p></o:p>=
</span></p>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&nbsp;<o=
:p></o:p></span></p>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0c=
m 0cm 0cm 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-=
bottom:5.0pt">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=B0</=
span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">Network reso=
urce aggregate</span><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-=
CN">=A1=B1</span><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">
 would imply that resources have been collected together to be used as a si=
ngle entity.<o:p></o:p></span></p>
</div>
</div>
</blockquote>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&nbsp;<o=
:p></o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">[VPB]&nb=
sp;Not necessarily. &quot;Network Resource Aggregate&quot; isn't meant to i=
mply &quot;aggregating network resources&quot;. The intent behind
 the&nbsp;proposal is to say that it is an aggregate that has specific netw=
ork resources.&nbsp;<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&nbsp;<o=
:p></o:p></span></p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">You migh=
t do that, for example, with a set of parallel links that can be aggregated=
 (or bundled) and treated as a single link.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">I don</s=
pan><span lang=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=AF</span>=
<span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">t
 think we are aggregating resources in this case. We are grouping, profilin=
g, partitioning, collecting, or even filtering.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">Adrian<o=
:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&nbsp;<o=
:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><strong><span lang=3D"EN-US" style=3D"font-family:SimSun;mso-farea=
st-language:ZH-CN">From:</span></strong><span lang=3D"EN-US" style=3D"mso-f=
areast-language:ZH-CN"> Tarek Saad &lt;<a href=3D"mailto:tsaad.net@gmail.co=
m" target=3D"_blank">tsaad.net@gmail.com</a>&gt;
<br>
<strong><span style=3D"font-family:SimSun">Sent:</span></strong> 12 August =
2021 15:41<br>
<strong><span style=3D"font-family:SimSun">To:</span></strong> <a href=3D"m=
ailto:adrian@olddog.co.uk" target=3D"_blank">
adrian@olddog.co.uk</a>; 'Kiran Makhijani' &lt;<a href=3D"mailto:kiran.ietf=
@gmail.com" target=3D"_blank">kiran.ietf@gmail.com</a>&gt;; 'John E Drake' =
&lt;jdrake=3D<a href=3D"mailto:40juniper.net@dmarc.ietf.org" target=3D"_bla=
nk">40juniper.net@dmarc.ietf.org</a>&gt;; &nbsp;'Dongjie (Jimmy)'
 &lt;<a href=3D"mailto:jie.dong@huawei.com" target=3D"_blank">jie.dong@huaw=
ei.com</a>&gt;; 'Lizhenbin' &lt;<a href=3D"mailto:lizhenbin@huawei.com" tar=
get=3D"_blank">lizhenbin@huawei.com</a>&gt;;
<a href=3D"mailto:teas@ietf.org" target=3D"_blank">teas@ietf.org</a><br>
<strong><span style=3D"font-family:SimSun">Subject:</span></strong> Re: [Te=
as] New term for the underlay construct used for slice realization<o:p></o:=
p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">Hi Adria=
n/all,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">As descr=
ibed in I-D.ietf-teas-ietf-network-slice-definition, an IETF Network Slice =
service may include multiple connections
 that associate sets of endpoints - &nbsp;each having a set of SLOs/SLEs.<o=
:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">In I-D.d=
raft-bestbar-teas-ns-packet, we defined a Slice Aggregate as a construct th=
at comprises of one or more IETF network
 slice traffic streams that share the &nbsp;same set of SLOs/SLEs.<o:p></o:=
p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">The Slic=
e Aggregate construct allows aggregating streams from multiple IETF Network=
 Slice connections that share common SLOs/SLEs
 so that the provider network &nbsp;can offer the same aggregate treatment =
to them. The Slice Aggregate resources are instantiated on specific network=
 elements as dictated by the Slice Aggregate topology.<o:p></o:p></span></p=
>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">Since th=
e scope of I-D.draft-bestbar-teas-ns-packet was the realization of IETF Net=
work Slice service in a provider network,
 we had constrained the aggregate &nbsp;construct to slices.<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">We under=
stand that the aggregate construct can be generalized to support other serv=
ices. Let us offer another option to consider
 for representing the generic &nbsp;construct: </span><span lang=3D"ZH-CN" =
style=3D"mso-fareast-language:ZH-CN">=A1=B0</span><span lang=3D"EN-US" styl=
e=3D"mso-fareast-language:ZH-CN">Network Resource Aggregate</span><span lan=
g=3D"ZH-CN" style=3D"mso-fareast-language:ZH-CN">=A1=B1</span><span lang=3D=
"EN-US" style=3D"mso-fareast-language:ZH-CN">.
 There are multiple IETF documents that use the term Aggregate whenever gro=
uping multiple service classes (Behavior Aggregate, Treatment Aggregate, Tr=
affic Aggregate, &nbsp;etc.) - refer to rfc5127 and rfc2474 for more exampl=
es.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">Regards,=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">Tarek<o:=
p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&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 lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">&nbsp;<o=
:p></o:p></span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;margin-bottom:12.0p=
t;margin-left:36.0pt">
<strong><span lang=3D"EN-US" style=3D"font-family:SimSun;color:black;mso-fa=
reast-language:ZH-CN">From:
</span></strong><span lang=3D"EN-US" style=3D"color:black;mso-fareast-langu=
age:ZH-CN">Teas &lt;</span><span lang=3D"EN-US" style=3D"mso-fareast-langua=
ge:ZH-CN"><a href=3D"mailto:teas-bounces@ietf.org" target=3D"_blank">teas-b=
ounces@ietf.org</a><span style=3D"color:black">&gt;
 on behalf of Adrian &nbsp;Farrel &lt;</span><a href=3D"mailto:adrian@olddo=
g.co.uk" target=3D"_blank">adrian@olddog.co.uk</a><span style=3D"color:blac=
k">&gt;<br>
<strong><span style=3D"font-family:SimSun">Date: </span></strong>Wednesday,=
 August 11, 2021 at 3:38 PM<br>
<strong><span style=3D"font-family:SimSun">To: </span></strong>'Kiran Makhi=
jani' &lt;</span><a href=3D"mailto:kiran.ietf@gmail.com" target=3D"_blank">=
kiran.ietf@gmail.com</a><span style=3D"color:black">&gt;, 'John E Drake' &l=
t;</span><a href=3D"mailto:jdrake=3D40juniper.net@dmarc.ietf.org" target=3D=
"_blank">jdrake=3D40juniper.net@dmarc.ietf.org</a><span style=3D"color:blac=
k">&gt;,
 &nbsp;'Dongjie (Jimmy)' &lt;</span><a href=3D"mailto:jie.dong@huawei.com" =
target=3D"_blank">jie.dong@huawei.com</a><span style=3D"color:black">&gt;, =
'Lizhenbin' &lt;</span><a href=3D"mailto:lizhenbin@huawei.com" target=3D"_b=
lank">lizhenbin@huawei.com</a><span style=3D"color:black">&gt;,
</span><a href=3D"mailto:teas@ietf.org" target=3D"_blank">teas@ietf.org</a>=
<span style=3D"color:black"> &lt;</span><a href=3D"mailto:teas@ietf.org" ta=
rget=3D"_blank">teas@ietf.org</a><span style=3D"color:black">&gt;<br>
<strong><span style=3D"font-family:SimSun">Subject: </span></strong>Re: [Te=
as] New term for the underlay construct used for slice realization</span><o=
:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;margin-left:36.0pt">
<span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">I wonder whether =
we can pick this apart and put it back together in a way<br>
that makes sense.<br>
<br>
The customer's view of all this is an &quot;IETF network slice service&quot=
;. I think<br>
(hope) we are all agreed on this. The customer may ask (in shorthand) for a=
<br>
&quot;network slice&quot;, but:<br>
- they are talking about IETF technology, so they asking for an &quot;IETF<=
br>
network slice&quot;<br>
- they actually want behavioural characteristics and have no right to tell<=
br>
the operator<br>
&nbsp; how to manage the network, so they are asking for an &quot;IETF netw=
ork slice<br>
service.&quot;<br>
<br>
The operator has a bigger set of things to worry about. <br>
<br>
1. At the top of the operator's view is the &quot;IETF network slice servic=
e&quot; as<br>
&nbsp;&nbsp;&nbsp; requested by the customer. We have this defined already,=
 so nothing more<br>
&nbsp;&nbsp;&nbsp; to say.<br>
<br>
2. The operator maps the request for a slice service into the &quot;IETF ne=
twork<br>
&nbsp;&nbsp;&nbsp; slice&quot; which is the expression of the service in te=
rms of network<br>
connectivity<br>
&nbsp;&nbsp;&nbsp; in the context of the operator's network. The relationsh=
ip here is like<br>
the<br>
&nbsp;&nbsp;&nbsp; relationship between the L3SM and L3NM.<br>
<br>
3. At the bottom of their view is an underlying network. The technology of<=
br>
this<br>
&nbsp;&nbsp; network depends, of course, on the operator's offering, but th=
is is the<br>
network<br>
&nbsp;&nbsp; technology being sliced. It may be an IP network, and MPLS net=
work, an<br>
OTN,<br>
&nbsp;&nbsp; or whatever. I would call this the &quot;Underlay Network.&quo=
t; This network may,<br>
in<br>
&nbsp;&nbsp; turn, be built upon an underlay network of the same or a diffe=
rent<br>
technology,<br>
&nbsp;&nbsp; and it may be facilitated through network slicing - but this n=
eed not<br>
concern<br>
&nbsp;&nbsp; us here. <br>
<br>
4. That leaves the glue in the middle: the bit that enables the scaling and=
<br>
maps<br>
&nbsp;&nbsp; the network slice to the network. And I think it is this bit t=
hat is<br>
causing the<br>
&nbsp;&nbsp; most debate about terminology. There are some points to consid=
er:<br>
<br>
&nbsp;&nbsp; a. The term &quot;network resources&quot; applies to the bandw=
idth, queues,<br>
buffers,<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; etc. available on the links and nodes =
in the network. That may be <br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; extended to refer to whole links and n=
odes.<br>
<br>
&nbsp;&nbsp; b. The number of IETF network slice services is potentially la=
rge and the<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; operator needs a mechanism to scale th=
e mapping of services to <br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; network resources.<br>
<br>
&nbsp;&nbsp; c. The IETF network slices may be grouped for identical treatm=
ent to<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; achieve scaling, where the grouping co=
llects IETF network slices with<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; similar SLAs.<br>
<br>
&nbsp;&nbsp; d. It may be that different traffic flows within a single IETF=
 network<br>
slice<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; have different characteristics. =
In this case, it may be beneficial<br>
to group<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; together some of the traffic flo=
ws from different slices.<br>
<br>
&nbsp;&nbsp; e. The grouped slices/flows are enabled in the network using n=
etwork<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; resources assigned for that purp=
ose. The assignment may be anything<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from a fully-fledged virtual net=
work (such as in ACTN or VPN+),<br>
through<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; network reserved resources (such=
 as in MPLS-TE), and centrally<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; accounted resources (such as SDN=
 or possible SR), to statistically<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; shared resources.<br>
<br>
There seems to be various points for and against 4d. But, it would appear<b=
r>
that this is an implementation or deployment issue that doesn't change what=
<br>
the protocols need to do. So we should probably allow it architecturally, o=
r<br>
at least, not disallow it.<br>
<br>
Of course, as Kiran points out, 4c/d/e may be a pass-through. That is, it i=
s<br>
not necessary to implement such groupings either because there are only a<b=
r>
few slices (which has been the view of some operators) or because the<br>
network systems can handle the number of slices. And it is in the nature of=
<br>
architectures of this sort that all functions can be nulled out without los=
s<br>
of generality, and we have to recall that the internals of provisioning<br>
systems may appear as functional blocks in our architectures, but we don't<=
br>
compel implementations to adhere to that type of architecture. So I don't<b=
r>
think we have to worry on that account.<br>
<br>
And that brings the question of how we name the resources that are gathered=
<br>
in 4e. <br>
<br>
I can't decide whether it is helpful to spend time saying why I don't like<=
br>
each of the proposed terms. I certainly have things I don't like about (for=
<br>
example) &quot;slice aggregate&quot; (because of 4d, which means it is real=
ly a &quot;slice<br>
sub-flow aggregate&quot;), and I am not a fan of &quot;VTN&quot; (because o=
f &quot;transport&quot;<br>
and maybe it is not really a network). But maybe it is better for me to say=
<br>
what I think we should call things? I think we have...<br>
<br>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IETF network slice service (customer =
view)<br>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IETF network slice (operator view)<br=
>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Resource partition (delivery mechanis=
m)<br>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Underlay network (network used to sup=
port the slice)<br>
<br>
Why &quot;resource partition&quot;? Well it is a collection of &quot;nodes,=
 links, and<br>
network resources that are marked within the network for use by a set of<br=
>
network slice traffic flows&quot;.<br>
It is possible that the word &quot;partition&quot; is too strong because it=
 may imply<br>
to some people that resources in a partition cannot be shared, but I don't<=
br>
feel that.<br>
Softer words than &quot;partition&quot; would be &quot;group&quot;, &quot;b=
undle&quot;, &quot;pool&quot;, and I<br>
could live with any of them.<br>
<br>
Best,<br>
Adrian<br>
<br>
<br>
-----Original Message-----<br>
From: Teas &lt;<a href=3D"mailto:teas-bounces@ietf.org" target=3D"_blank">t=
eas-bounces@ietf.org</a>&gt; On Behalf Of Kiran Makhijani<br>
Sent: 11 August 2021 16:00<br>
To: John E Drake &lt;<a href=3D"mailto:jdrake=3D40juniper.net@dmarc.ietf.or=
g" target=3D"_blank">jdrake=3D40juniper.net@dmarc.ietf.org</a>&gt;; Dongjie=
 (Jimmy)<br>
&lt;<a href=3D"mailto:jie.dong@huawei.com" target=3D"_blank">jie.dong@huawe=
i.com</a>&gt;; Lizhenbin &lt;<a href=3D"mailto:lizhenbin@huawei.com" target=
=3D"_blank">lizhenbin@huawei.com</a>&gt;;
<a href=3D"mailto:teas@ietf.org" target=3D"_blank">teas@ietf.org</a><br>
Subject: Re: [Teas] New term for the underlay construct used for slice<br>
realization<br>
<br>
Hi John, (and all),<br>
<br>
Two very basic clarification questions:<br>
1. How do we differentiate between&nbsp; the slice-segments that are <br>
resource-aware vs those that are not? I had assumed that since a slice <br>
has an SLO, it will need network resource allocations in some form.<br>
<br>
2. Is it ok to assume that the customer view of slice is an 'IETF <br>
network slice service' and the 'IETF slice realization' of that service <br=
>
in a provider network is raises the question of underlay and overlay <br>
constructs. Am I right?<br>
(a) if so, then we are acknowledging&nbsp; the presence of another layer of=
 <br>
abstraction (for realization). It could be underlay/overlay or <br>
aggregate/??. Then the term 'slice aggregate' is better and my <br>
preference, it is easier to see that different slice-services are <br>
aggregated into a single construct&nbsp; in a provider network. Use of <br>
underlay/overlay are confusing.<br>
(b) for a leaner provisioning, I would also prefer to see it documented <br=
>
that the aggregate is optional and it should be possible to directly map <b=
r>
a slice-service to physical or real resources in the network. <br>
specifically useful when a single domain is carving out slices for <br>
different purposes.<br>
<br>
Thanks<br>
Kiran<br>
<br>
<br>
------ Original Message ------<br>
From: &quot;John E Drake&quot; &lt;<a href=3D"mailto:jdrake=3D40juniper.net=
@dmarc.ietf.org" target=3D"_blank">jdrake=3D40juniper.net@dmarc.ietf.org</a=
>&gt;<br>
To: &quot;Dongjie (Jimmy)&quot; &lt;<a href=3D"mailto:jie.dong@huawei.com" =
target=3D"_blank">jie.dong@huawei.com</a>&gt;; &quot;Lizhenbin&quot;
<br>
&lt;<a href=3D"mailto:lizhenbin@huawei.com" target=3D"_blank">lizhenbin@hua=
wei.com</a>&gt;; &quot;<a href=3D"mailto:teas@ietf.org" target=3D"_blank">t=
eas@ietf.org</a>&quot; &lt;<a href=3D"mailto:teas@ietf.org" target=3D"_blan=
k">teas@ietf.org</a>&gt;<br>
Sent: 8/11/2021 5:38:05 AM<br>
Subject: Re: [Teas] New term for the underlay construct used for slice <br>
realization<br>
<br>
&gt;Jimmy,<br>
&gt;<br>
&gt;Snipped, comments inline.<br>
&gt;<br>
&gt;Yours Irrespectively,<br>
&gt;<br>
&gt;John<br>
&gt;<br>
&gt;<br>
&gt;Juniper Business Use Only<br>
&gt;<br>
&gt;&gt;&nbsp; -----Original Message-----<br>
&gt;&gt;&nbsp; From: Dongjie (Jimmy) &lt;<a href=3D"mailto:jie.dong@huawei.=
com" target=3D"_blank">jie.dong@huawei.com</a>&gt;<br>
&gt;&gt;&nbsp; Sent: Tuesday, August 10, 2021 11:03 PM<br>
&gt;&gt;&nbsp; To: John E Drake &lt;<a href=3D"mailto:jdrake@juniper.net" t=
arget=3D"_blank">jdrake@juniper.net</a>&gt;; Lizhenbin &lt;<a href=3D"mailt=
o:lizhenbin@huawei.com" target=3D"_blank">lizhenbin@huawei.com</a>&gt;;<br>
&gt;&gt;<a href=3D"mailto:teas@ietf.org" target=3D"_blank">teas@ietf.org</a=
><br>
&gt;&gt;&nbsp; Subject: RE: New term for the underlay construct used for sl=
ice<br>
realization<br>
&gt;&gt;<br>
&gt;&gt;&nbsp; [External Email. Be cautious of content]<br>
&gt;&gt;<br>
&gt;underlay construct for network slice realization bound to<br>
&gt;&gt;&nbsp; &gt; &gt; network slice services? That is, is the underlay c=
onstruct only for<br>
&gt;&gt;&nbsp; &gt; &gt; use in network slicing, or should it be generalize=
d for more<br>
possible uses?<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; [JD] Absolutely yes<br>
&gt;&gt;<br>
&gt;&gt;&nbsp; [Jie] I guess you mean &quot;Yes&quot; to the latter case, w=
hich is &quot;it should be<br>
generalized<br>
&gt;&gt;&nbsp; for more possible uses&quot;, is my understanding correct?<b=
r>
&gt;<br>
&gt;[JD]&nbsp; Yes to the latter<br>
&gt;<br>
&gt;&gt;<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; 2.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; If the answer to =
question 1 is YES, should it reflect the<br>
following<br>
&gt;&gt;&nbsp; &gt; &gt; characteristics?<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; a.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; It is about the u=
nderlay<br>
&gt;&gt;&nbsp; &gt; &gt; b.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; It is about the p=
artitioned resources used to deliver the<br>
network slice<br>
&gt;&gt;&nbsp; &gt; &gt; services<br>
&gt;&gt;&nbsp; &gt; &gt; c.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; It allows the 1:1=
, N:1, and 1:N mapping models between the<br>
network<br>
&gt;&gt;&nbsp; &gt; slice<br>
&gt;&gt;&nbsp; &gt; &gt; services and the underlay construct. The 1:1 and N=
:1 mapping may be<br>
&gt;&gt;&nbsp; &gt; &gt; straightforward. Does it also make sense to divide=
 the elements or<br>
&gt;&gt;&nbsp; &gt; &gt; traffic flows in a single network slice service to=
 carry them in<br>
&gt;&gt;&nbsp; &gt; &gt; different<br>
&gt;&gt;&nbsp; &gt; underlay constructs?<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; [JD]&nbsp; Yes to all of the above.&nbsp; Please see:<b=
r>
&gt;&gt;&nbsp; &gt; <a href=3D"https://urldefense.com/v3/__https:/datatrack=
er.ietf.org/doc/html/draf" target=3D"_blank">
https://urldefense.com/v3/__https://datatracker.ietf.org/doc/html/draf</a><=
br>
&gt;&gt;&nbsp; &gt; t-drake-bess-enhanced-vpn-06__;!!NEt6yMaO-<br>
&gt;&gt;&nbsp; gk!TCiJHCZCwFgwpuFoujxVlZ4r9<br>
&gt;&gt;&nbsp; &gt; F6mLpE4nJ-9zpqkY-kls-ROxL4C2_xNaR2ImI4$<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; Lastly, here are some candidates of the &quot;new =
term&quot;:<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; Option 1: The network slice service is called &quo=
t;overlay slice&quot;, then<br>
&gt;&gt;&nbsp; &gt; &gt; the underlay construct is called &quot;underlay sl=
ice&quot;.<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; Option 2: The network slice service is called &quo=
t;service slice&quot;, then<br>
&gt;&gt;&nbsp; &gt; &gt; the underlay construct is called &quot;resource sl=
ice&quot;.<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; [JD]&nbsp; I don't think we need another term for what =
we are already<br>
&gt;&gt;&nbsp; &gt; calling an 'IETF Network Slice Service'.&nbsp; Adrian a=
nd I are considering<br>
&gt;&gt;&nbsp; &gt; the term 'resource partition' to describe the partition=
ing of underlay<br>
&gt;&gt;&nbsp; &gt; network resources in support of various overlay service=
s such as IETF<br>
Network<br>
&gt;&gt;&nbsp; Slice Services.<br>
&gt;&gt;&nbsp; &gt; This is congruent with the ideas expressed in:<br>
&gt;&gt;&nbsp; &gt; <a href=3D"https://urldefense.com/v3/__https:/datatrack=
er.ietf.org/doc/html/draf" target=3D"_blank">
https://urldefense.com/v3/__https://datatracker.ietf.org/doc/html/draf</a><=
br>
&gt;&gt;&nbsp; &gt; t-ietf-spring-resource-aware-segmen__;!!NEt6yMaO-<br>
&gt;&gt;&nbsp; gk!TCiJHCZCwFgwpuFouj<br>
&gt;&gt;&nbsp; &gt; xVlZ4r9F6mLpE4nJ-9zpqkY-kls-ROxL4C2_xNxEfwaXg$<br>
&gt;&gt;&nbsp; &gt; ts-03.&nbsp; What this allows one to build is an 'parti=
tioned underlay<br>
&gt;&gt;&nbsp; &gt; network topology'.<br>
&gt;&gt;<br>
&gt;&gt;&nbsp; [Jie] Agree that here we are talking about the term for the =
underlay<br>
construct.<br>
&gt;&gt;&nbsp; &quot;Resource partition&quot; captures one of its key chara=
cteristics, while IMO<br>
another<br>
&gt;&gt;&nbsp; thing the term needs to reflect is that the resource partiti=
on is needed<br>
on a<br>
&gt;&gt;&nbsp; subset of the links and nodes (rather than on a single node =
or link) in<br>
the physical<br>
&gt;&gt;&nbsp; network, which together builds a logical network topology.<b=
r>
&gt;<br>
&gt;[JD]&nbsp; In my initial email, above, I was proposing 'partitioned und=
erlay<br>
network topology'<br>
&gt;<br>
&gt;&gt;<br>
&gt;&gt;&nbsp; Best regards,<br>
&gt;&gt;&nbsp; Jie<br>
&gt;&gt;<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; Your opinion about these candidates are much appre=
ciated. You may<br>
&gt;&gt;&nbsp; &gt; &gt; also propose other new term if it complies with th=
e above two<br>
points.<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; [JD]&nbsp; I think you have exceeded your remit.<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; Best Regards,<br>
&gt;&gt;&nbsp; &gt; &gt; Robin<br>
&gt;&gt;&nbsp; &gt; &gt;<br>
&gt;&gt;&nbsp; &gt; &gt; _______________________________________________<br=
>
&gt;&gt;&nbsp; &gt; &gt; Teas mailing list<br>
&gt;&gt;&nbsp; &gt; &gt; <a href=3D"mailto:Teas@ietf.org" target=3D"_blank"=
>Teas@ietf.org</a><br>
&gt;&gt;&nbsp; &gt; &gt; <a href=3D"https://urldefense.com/v3/__https:/www.=
ietf.org/mailman/listinfo/te" target=3D"_blank">
https://urldefense.com/v3/__https://www.ietf.org/mailman/listinfo/te</a><br=
>
&gt;&gt;&nbsp; &gt; &gt; as<br>
&gt;&gt;&nbsp; &gt; &gt; __;!!N<br>
&gt;&gt;&nbsp; &gt; &gt; Et6yMaO-gk!Q0ycOf0ELxT6mG1GbnO4LSL-Q99J4uu7jfdUtBE=
CaI-<br>
&gt;&gt;&nbsp; &gt; &gt; O08HqD31TGJciNjuxL2A$<br>
&gt;&gt;&nbsp; &gt;<br>
&gt;&gt;&nbsp; &gt; _______________________________________________<br>
&gt;&gt;&nbsp; &gt; Teas mailing list<br>
&gt;&gt;&nbsp; &gt; <a href=3D"mailto:Teas@ietf.org" target=3D"_blank">Teas=
@ietf.org</a><br>
&gt;&gt;&nbsp; &gt; <a href=3D"https://urldefense.com/v3/__https:/www.ietf.=
org/mailman/listinfo/teas" target=3D"_blank">
https://urldefense.com/v3/__https://www.ietf.org/mailman/listinfo/teas</a><=
br>
&gt;&gt;&nbsp; &gt; __;!!NEt6yMaO-gk!TCiJHCZCwFgwpuFoujxVlZ4r9F6mLpE4nJ-9zp=
qkY-kls-<br>
&gt;&gt;&nbsp; ROxL4C2<br>
&gt;&gt;&nbsp; &gt; _xNDCrPaNQ$<br>
&gt;<br>
&gt;_______________________________________________<br>
&gt;Teas mailing list<br>
&gt;<a href=3D"mailto:Teas@ietf.org" target=3D"_blank">Teas@ietf.org</a><br=
>
&gt;<a href=3D"https://urldefense.com/v3/__https:/www.ietf.org/mailman/list=
info/teas__;!!NEt6yMaO-gk!TKJch2dwsJUTEeFWCMLasf9_GayAVTsgrkNK6Ve48YTTS1iD_=
HNe2dms30OL80Q$" target=3D"_blank">https://www.ietf.org/mailman/listinfo/te=
as</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://urldefense.com/v3/__https:/www.ietf.org/mailman/listinfo=
/teas__;!!NEt6yMaO-gk!TKJch2dwsJUTEeFWCMLasf9_GayAVTsgrkNK6Ve48YTTS1iD_HNe2=
dms30OL80Q$" target=3D"_blank">https://www.ietf.org/mailman/listinfo/teas</=
a><br>
<br>
_______________________________________________<br>
Teas mailing list<br>
<a href=3D"mailto:Teas@ietf.org" target=3D"_blank">Teas@ietf.org</a><br>
<a href=3D"https://urldefense.com/v3/__https:/www.ietf.org/mailman/listinfo=
/teas__;!!NEt6yMaO-gk!TKJch2dwsJUTEeFWCMLasf9_GayAVTsgrkNK6Ve48YTTS1iD_HNe2=
dms30OL80Q$" target=3D"_blank">https://www.ietf.org/mailman/listinfo/teas</=
a><o:p></o:p></span></p>
</div>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"mso-fareast-language:ZH-CN">________=
_______________________________________<br>
Teas mailing list<br>
<a href=3D"mailto:Teas@ietf.org" target=3D"_blank">Teas@ietf.org</a><br>
<a href=3D"https://urldefense.com/v3/__https:/www.ietf.org/mailman/listinfo=
/teas__;!!NEt6yMaO-gk!TKJch2dwsJUTEeFWCMLasf9_GayAVTsgrkNK6Ve48YTTS1iD_HNe2=
dms30OL80Q$" target=3D"_blank">https://www.ietf.org/mailman/listinfo/teas</=
a><o:p></o:p></span></p>
</div>
</blockquote>
</div>
</div>
</div>
</div>
</body>
</html>

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From: James Guichard <james.n.guichard@futurewei.com>
To: "sfc@ietf.org" <sfc@ietf.org>, "spring@ietf.org" <spring@ietf.org>
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Subject: [spring] FW: NomCom 2021-2022 Call for Nominations
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FYI

-----Original Message-----
From: ietf <ietf-bounces@ietf.org> On Behalf Of NomCom Chair 2021
Sent: Monday, August 30, 2021 10:04 AM
To: IETF Announcement List <ietf-announce@ietf.org>
Cc: ietf@ietf.org
Subject: NomCom 2021-2022 Call for Nominations

Finally! The moment we've all been waiting for:

   C A L L       F O R       N O M I N A T I O N S  ! ! !

The 2021-22 IETF Nominating Committee (NomCom) is seeking nominations from =
now until Monday, October 11, 2021.=20

The open positions and more information are found at the NomCom web site:

https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fdatatra=
cker.ietf.org%2Fnomcom%2F2021%2F&amp;data=3D04%7C01%7Cjames.n.guichard%40fu=
turewei.com%7C8f1de9e8bdae465acc8508d96bbf1a01%7C0fee8ff2a3b240189c753a1d55=
91fedc%7C1%7C0%7C637659290801044955%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjA=
wMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=3D5aYE=
4NkMRIfG4VOxTyH7LrPLY8I32544SDh4K%2FiW%2B4s%3D&amp;reserved=3D0=20

They are also included below for convenience.

Nominations may be made by selecting the Nominate link at the top of the No=
mCom 2021 home page, or by visiting the following URL:=20

https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fdatatra=
cker.ietf.org%2Fnomcom%2F2021%2Fnominate%2F&amp;data=3D04%7C01%7Cjames.n.gu=
ichard%40futurewei.com%7C8f1de9e8bdae465acc8508d96bbf1a01%7C0fee8ff2a3b2401=
89c753a1d5591fedc%7C1%7C0%7C637659290801044955%7CUnknown%7CTWFpbGZsb3d8eyJW=
IjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;s=
data=3DLmwLsbrnaVTLc26KR%2FEdhmnfI9qW3f13a8Zlql24cbg%3D&amp;reserved=3D0

Self-nomination is welcome!=20

Note:  Nominations made using the web tool require an ietf.org datatracker =
account. You can create a datatracker ietf.org account if you don't have on=
e already by visiting the following URL:=20

https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fdatatra=
cker.ietf.org%2Faccounts%2Fcreate%2F&amp;data=3D04%7C01%7Cjames.n.guichard%=
40futurewei.com%7C8f1de9e8bdae465acc8508d96bbf1a01%7C0fee8ff2a3b240189c753a=
1d5591fedc%7C1%7C0%7C637659290801044955%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4=
wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=3D=
7IizRio59UsMSZOA61PddD5KO9plx6YDLe9SMb5pfq4%3D&amp;reserved=3D0

If you are unable to use the web form, nominations may instead be made by e=
mail to nomcom-2021 at ietf dot org. If using email, please include the wor=
d "Nominate"=20
in the Subject and indicate in the email who is being nominated, their emai=
l address (to confirm acceptance of the nomination), and the position for w=
hich you are making the nomination. If you are nominating someone other tha=
n yourself, please tell us if we may tell the nominee that you were the one=
 who made the nomination. If you wish to nominate someone via email for mor=
e than one position, please use separate emails to do so.

Willing nominees will be asked to fill out a questionnaire specific to the =
position for which they are nominated. The finalized questionnaires will be=
 available no later than Monday, September 6, 2021 (preliminary versions ar=
e already posted) and have a submission deadline of Monday, October 18, 202=
1.=20

NomCom 2021-22 will follow the policy for "Open Disclosure of Willing Nomin=
ees" described in BCP 10/RFC 8713: "The list of nominees willing to be cons=
idered for positions under review in the current NomCom cycle is not confid=
ential". Willing nominees for each position will be listed in a publicly ac=
cessible way, e.g., anyone with a datatracker account may access the lists.=
 Additionally, the nomination form asks if we may share your own name with =
the nominee. In all other ways, the confidentiality requirements of BCP
10 remain in effect. All feedback and all NomCom deliberations will remain =
confidential and will not be disclosed.

There is a field on the form you can mark in order to allow the NomCom to t=
ell the nominee that you were the one who made the nomination. This default=
s to "no" - so if you don't mark the field we won't tell.

In order to ensure time to collect sufficient community feedback about each=
 of the willing nominees, nominations must be received by the NomCom on or =
before Monday, October 11, 2021.

Please submit your nominations as early as possible for the sake of your no=
minees. Note that nominations should not wait for nominee management permis=
sion, as it is easier to decline the nomination than put one in late.

The NomCom appoints individuals to fill open slots on the IAB, IESG, the IE=
TF Trust and the LLC Board:

	ART AD: 1 position
	INT AD: 1 position
	OPS AD: 1 position
	RTG AD: 1 position
	SEC AD: 1 position
	TSV AD: 1 position
	IETF Trust: 1 position
	IETF LLC: 1 position
	IAB: 6 positions

The list of people and posts whose terms end with the March 2022 IETF meeti=
ng, and thus the positions for which this NomCom is responsible, is:

[An asterisk (*) next to a person's name indicates they do not intend to ac=
cept renomination.]

	LLC Board (3-year term)
		Jason Livingood
	=09
	IETF Trust (3-year term)
		Kathleen Moriarty
	=09
	IAB (2-year term)
		Ben Campbell *
		Cullen Jennings
		Mirja K=FChlewind
		Jared Mauch
		Tommy Pauly
		Jiankang Yao
	=09
	IESG (2-year term)
		Murray Kucherawy, ART AD
		Erik Kline, INT AD
		Robert Wilton, OPS AD
		Martin Vigoureux, RTG AD
		Benjamin Kaduk, SEC AD *
		Martin Duke, TSV AD

Please be resourceful in identifying possible candidates for these position=
s, as developing our talent is a very crucial requirement for the IETF, and=
 also, please consider accepting a nomination. You'll find extensive inform=
ation about specific positions, in individual tabs at:=20

https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fdatatra=
cker.ietf.org%2Fnomcom%2F2021%2Frequirements%2F&amp;data=3D04%7C01%7Cjames.=
n.guichard%40futurewei.com%7C8f1de9e8bdae465acc8508d96bbf1a01%7C0fee8ff2a3b=
240189c753a1d5591fedc%7C1%7C0%7C637659290801044955%7CUnknown%7CTWFpbGZsb3d8=
eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&a=
mp;sdata=3DDEQYY%2FMT%2B2QWfbKOns5%2FKJVghV8TqWmwhi9chlg47iA%3D&amp;reserve=
d=3D0=20

In addition to nominations, the NomCom seeks community input on the positio=
ns themselves. We need and welcome the community's views and input on the j=
obs within each organization. If you have ideas on the positions' responsib=
ilities (more, less, different), please let us know.

Please send suggestions and feedback about this to nomcom-2021 at ietf dot =
org.=20

Thank you for your help in identifying qualified nominees!=20

Thanks,

Gabriel Montenegro
IETF NomCom Chair 2021-22
nomcom-chair-2021 at ietf dot org

