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From: "Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com>
To: Gregory Mirsky <gregory.mirsky@ericsson.com>, Tal Mizrahi <talmi@marvell.com>, "draft-ooamdt-rtgwg-oam-gap-analysis@tools.ietf.org" <draft-ooamdt-rtgwg-oam-gap-analysis@tools.ietf.org>, "draft-ooamdt-rtgwg-ooam-requirement@tools.ietf.org" <draft-ooamdt-rtgwg-ooam-requirement@tools.ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: Re: Comments about Overlay OAM Drafts
Thread-Topic: Comments about Overlay OAM Drafts
Thread-Index: AdHPgQ8L7yui3SQ6S8i+8JhXelTIiwAPKBqAAAIJKnAAD6mBkADp5h2A
Date: Fri, 1 Jul 2016 14:20:22 +0000
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References: <7e12c3e474924b04b133da754e2f9cf8@IL-EXCH01.marvell.com> <D3955BC6.165106%naikumar@cisco.com> <48da4f66881d4accb182513b39744fc1@IL-EXCH01.marvell.com> <7347100B5761DC41A166AC17F22DF11221AB8DC9@eusaamb103.ericsson.se>
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Hi Tal,

6.	Section 6 - certainly the OAM requirements have security implications.
For example, OAM protocols may be subject to DoS attacks and to network
recon. Some of these considerations are discussed in RFC 7276.


The draft is listing the requirements and does not discuss about any
solution or machinery. Accordingly, it does not introduce any security
implications. I think the security consideration is applicable on the
document that define the solutions. Does the below works:

"This document list the OAM requirement for various Overlay network and
does not raise any security considerations. Any document defining the
solution for the above requirement must consider and include the relevant
security mechanism=B2.

Thanks,
Nagendra

On 6/26/16, 8:36 PM, "Gregory Mirsky" <gregory.mirsky@ericsson.com> wrote:

>Hi Tal,
>many thanks for your thorough review of the documents by OOAM DT, greatly
>appreciated. Please find my answers and notes in-line and tagged GIM>>.
>We're preparing updates to both drafts and will reflect your comments in
>the coming updates.
>
>	Regards,
>		Greg
>
>-----Original Message-----
>From: Tal Mizrahi [mailto:talmi@marvell.com]
>Sent: Sunday, June 26, 2016 7:20 AM
>To: Nagendra Kumar Nainar (naikumar);
>draft-ooamdt-rtgwg-oam-gap-analysis@tools.ietf.org;
>draft-ooamdt-rtgwg-ooam-requirement@tools.ietf.org; rtgwg@ietf.org
>Cc: bier@ietf.org; sfc@ietf.org; nvo3@ietf.org
>Subject: RE: Comments about Overlay OAM Drafts
>
>Dear Nagendra,
>
>>The comments seems to be missing in the mail. Can you please share the
>>same?.
>
>Strange... The comments seem to be visible in the mail archive
>(https://mailarchive.ietf.org/arch/msg/rtgwg/EPxJQcw9lOAIHV2HkRwNE6GVxAU).
>
>Nevertheless, here goes again:
>
>
>Comments about draft-ooamdt-rtgwg-ooam-requirement:
>https://tools.ietf.org/html/draft-ooamdt-rtgwg-ooam-requirement-00
>
>A general question about the draft: does the draft define requirements
>for operators, requirements for vendors, or requirements for IETF working
>groups? These are three significantly different scopes, and reading the
>document I was not able to assess who the requirements are intended for.
>
>Other comments:
>1.	Section 3: The term 'UCMP' is defined in Section 3, but not used in
>the document.
>GIM>> Good catch, will clear
>2.	The following terms are used in the draft without having been defined:
>-	'OAM session'
>-	'node'
>-	'centralized controller'
>-	'FM'
>GIM>> While Fault Management is straightforward
>3.	Section 4.1.1: 'Reverse Defect Indication (RDI)' =3D=3D> RDI usually
>stands for Remote Defect Indication.
>GIM>> Indeed, thank you. Will update.
>4.	Section 4.1.2: "Overlay OAM MAY support verification of the mapping
>between its data plane state and client layer services" - please clarify
>further.
>GIM>> We intend to provide solutions in the new document. But one use
>case discussed in draft-nordmark-nvo3-transcending-traceroute.
>5.	Section 4.2: the terms 'active' and 'passive' have not been defined in
>the current draft (you may want to cite RFC 7799).
>Specifically, this clarification is necessary since the term 'passive'
>according to RFC 7799 is slightly different than the term 'passive' in
>draft-ietf-ippm-alt-mark-00.
>GIM>> Yes, and we are talking about measurement methods that can be used
>"almost as passive" and explain the requirements toward the overlay to
>achieve such behavior.
>6.	Section 6 - certainly the OAM requirements have security implications.
>For example, OAM protocols may be subject to DoS attacks and to network
>recon. Some of these considerations are discussed in RFC 7276.
>
>
>Comments about draft-ooamdt-rtgwg-oam-gap-analysis:
>https://tools.ietf.org/html/draft-ooamdt-rtgwg-oam-gap-analysis-01
>
>1.	I believe having an OAM gap analysis draft is a good idea.
>GIM>> Thank you.
>2.	The current draft is still very preliminary, and some of the sections
>are still empty.=20
>GIM>> we'll post update before the cut-off date to discuss it in Berlin.
>3.	Section 1: The introduction of the document goes way beyond the scope
>of the title (Gap Analysis). The intro actually defines the baseline of
>an Overlay OAM solution. Either this part should be removed from the
>document, or the scope of the document should be redefined.
>GIM>> I think it may justified as we list existing IETF OAM protocols.
>Though we may move them out of the Introduction and into the new section.
>4.	Section 3.3: this section is unclear, and should probably be rephrased.
>The section discusses both in-band telemetry and passive monitoring, and
>it is not clear whether the two are related or not.
>GIM>> We've discussed the telemetry and it could be collected using
>active OAM, i.e. using injected OAM packets, or using passive-like
>method. Interestingly to discussion in RFC 7799, telemetry collection may
>use methods that could be characterized as hybrid methods as well.
>5.	Section 5: it looks like this text was copied from another draft, and
>is not applicable to this document.
>GIM>> Indeed, we've removed it in the working version. Contributions are
>welcome and appreciated.
>
>Cheers,
>Tal.
>
>
>
>>-----Original Message-----
>>From: Nagendra Kumar Nainar (naikumar) [mailto:naikumar@cisco.com]
>>Sent: Sunday, June 26, 2016 5:16 PM
>>To: Tal Mizrahi; draft-ooamdt-rtgwg-oam-gap-analysis@tools.ietf.org;
>>draft- ooamdt-rtgwg-ooam-requirement@tools.ietf.org; rtgwg@ietf.org
>>Cc: bier@ietf.org; sfc@ietf.org; nvo3@ietf.org
>>Subject: Re: Comments about Overlay OAM Drafts
>>
>>Hi Tal,
>>
>>The comments seems to be missing in the mail. Can you please share the
>>same?.
>>
>>Thanks,
>>Nagendra
>>
>>On 6/26/16, 4:12 AM, "Tal Mizrahi" <talmi@marvell.com> wrote:
>>
>>>Dear OOAM Authors,
>>>
>>>I have read the two OOAM drafts, and I have some comments. Please see
>>>below
>


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Subject: Re: [sfc] New documents published by Overlay OAM DT
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    <div class="moz-cite-prefix">Dear Greg,<br>
      <br>
      You wrote:<br>
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      <div class="WordSection1">
        <p class="MsoNormal">the design team had published two
          documents:<o:p></o:p></p>
        <p class="MsoListParagraph"
          style="text-indent:-.25in;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span
            style="font-family:Symbol"><span style="mso-list:Ignore">·<span
                style="font:7.0pt &quot;Times New Roman&quot;">        
              </span></span></span><!--[endif]-->Overlay OAM
          Requirements <a moz-do-not-send="true"
href="https://tools.ietf.org/html/draft-ooamdt-rtgwg-ooam-requirement-00">https://tools.ietf.org/html/draft-ooamdt-rtgwg-ooam-requirement-00</a><o:p></o:p></p>
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          style="margin-left:.5in;text-indent:-.25in;mso-list:l0 level1
          lfo1">
          <!--[if !supportLists]--><span style="font-family:Symbol"><span
              style="mso-list:Ignore">·<span style="font:7.0pt
                &quot;Times New Roman&quot;">        
              </span></span></span><!--[endif]-->OAM for Overlay
          Networks: Gap Analysis <a moz-do-not-send="true"
href="https://tools.ietf.org/html/draft-ooamdt-rtgwg-oam-gap-analysis-00">https://tools.ietf.org/html/draft-ooamdt-rtgwg-oam-gap-analysis-00</a><o:p></o:p></p>
      </div>
    </blockquote>
    <br>
    Both documents have subsections pro-active and on-demand for FM<br>
    but active and passive for PM.<br>
    <br>
    Why is there no distinction made for active and passive FM, <br>
    and pro-active and on-demand for PM?<br>
    <br>
    Best regards, Huub.<br>
    <br>
    <br>
    <pre class="moz-signature" cols="72">-- 
================================================================
Always remember that you are unique...just like everyone else...</pre>
  </body>
</html>


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From: Gregory Mirsky <gregory.mirsky@ericsson.com>
To: "huubatwork@gmail.com" <huubatwork@gmail.com>, "rtg-bfd@ietf.org" <rtg-bfd@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>, "sfc@ietf.org" <sfc@ietf.org>, "BIER (bier@ietf.org)" <bier@ietf.org>, "nvo3@ietf.org" <nvo3@ietf.org>
Subject: RE: [sfc] New documents published by Overlay OAM DT
Thread-Topic: [sfc] New documents published by Overlay OAM DT
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Hi Huub,
thank you for your interest in these documents and the questions.
Frankly, I don't have an example of passive FM among ITEF-developed OAM too=
ls.
Distinction between proactive and on-demand may be subjective if we conside=
r how a Measurement Agent from LMAP framework executes measurement tasks, i=
.e. performs PM operation, based on pre-defined schedule. Is that proactive=
 or on-demand PM operation? Perhaps such distinction is unnecessary but we =
used these categories because traditionally we refer to ping and traceroute=
 to be on-demand while BFD as proactive OAM.
What would you suggest?

                Regards,
                                Greg

From: Huub van Helvoort [mailto:huubatwork@gmail.com]
Sent: Friday, July 01, 2016 7:56 AM
To: Gregory Mirsky; rtg-bfd@ietf.org; rtgwg@ietf.org; sfc@ietf.org; BIER (b=
ier@ietf.org); nvo3@ietf.org
Cc: Ignas Bagdonas (ibagdona@gmail.com); Carlos Pignataro (cpignata) (cpign=
ata@cisco.com); Erik Nordmark (nordmark@sonic.net); dekumar@cisco.com; Petr=
 Lapukhov (petr@fb.com); santosh.pallagatti@gmail.com; Alia Atlas (akatlas@=
gmail.com); Nagendra Kumar (naikumar) (naikumar@cisco.com); David Mozes (da=
vidm@mellanox.com)
Subject: Re: [sfc] New documents published by Overlay OAM DT

Dear Greg,

You wrote:
the design team had published two documents:

*         Overlay OAM Requirements https://tools.ietf.org/html/draft-ooamdt=
-rtgwg-ooam-requirement-00

*         OAM for Overlay Networks: Gap Analysis https://tools.ietf.org/htm=
l/draft-ooamdt-rtgwg-oam-gap-analysis-00

Both documents have subsections pro-active and on-demand for FM
but active and passive for PM.

Why is there no distinction made for active and passive FM,
and pro-active and on-demand for PM?

Best regards, Huub.




--

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

Always remember that you are unique...just like everyone else...

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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Hi Huub,<o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">thank you for your int=
erest in these documents and the questions.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Frankly, I don&#8217;t=
 have an example of passive FM among ITEF-developed OAM tools.<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Distinction between pr=
oactive and on-demand may be subjective if we consider how a Measurement Ag=
ent from LMAP framework executes measurement tasks, i.e. performs PM operat=
ion, based on pre-defined schedule.
 Is that proactive or on-demand PM operation? Perhaps such distinction is u=
nnecessary but we used these categories because traditionally we refer to p=
ing and traceroute to be on-demand while BFD as proactive OAM.<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">What would you suggest=
?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Regard=
s,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; Greg<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;font-family:&quot=
;Tahoma&quot;,&quot;sans-serif&quot;;color:windowtext">From:</span></b><spa=
n style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif=
&quot;;color:windowtext"> Huub van Helvoort [mailto:huubatwork@gmail.com]
<br>
<b>Sent:</b> Friday, July 01, 2016 7:56 AM<br>
<b>To:</b> Gregory Mirsky; rtg-bfd@ietf.org; rtgwg@ietf.org; sfc@ietf.org; =
BIER (bier@ietf.org); nvo3@ietf.org<br>
<b>Cc:</b> Ignas Bagdonas (ibagdona@gmail.com); Carlos Pignataro (cpignata)=
 (cpignata@cisco.com); Erik Nordmark (nordmark@sonic.net); dekumar@cisco.co=
m; Petr Lapukhov (petr@fb.com); santosh.pallagatti@gmail.com; Alia Atlas (a=
katlas@gmail.com); Nagendra Kumar
 (naikumar) (naikumar@cisco.com); David Mozes (davidm@mellanox.com)<br>
<b>Subject:</b> Re: [sfc] New documents published by Overlay OAM DT<o:p></o=
:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<p class=3D"MsoNormal">Dear Greg,<br>
<br>
You wrote:<o:p></o:p></p>
</div>
<blockquote style=3D"margin-top:5.0pt;margin-bottom:5.0pt">
<p class=3D"MsoNormal">the design team had published two documents:<o:p></o=
:p></p>
<p class=3D"MsoListParagraph" style=3D"text-indent:-.25in;mso-list:l0 level=
1 lfo2"><![if !supportLists]><span style=3D"font-family:Symbol"><span style=
=3D"mso-list:Ignore">&middot;<span style=3D"font:7.0pt &quot;Times New Roma=
n&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span><![endif]>Overlay OAM Requirements <a href=3D"https://=
tools.ietf.org/html/draft-ooamdt-rtgwg-ooam-requirement-00">
https://tools.ietf.org/html/draft-ooamdt-rtgwg-ooam-requirement-00</a><o:p>=
</o:p></p>
<p class=3D"MsoPlainText" style=3D"margin-left:.5in;text-indent:-.25in;mso-=
list:l0 level1 lfo2">
<![if !supportLists]><span style=3D"font-family:Symbol"><span style=3D"mso-=
list:Ignore">&middot;<span style=3D"font:7.0pt &quot;Times New Roman&quot;"=
>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span><![endif]>OAM for Overlay Networks: Gap Analysis <a hr=
ef=3D"https://tools.ietf.org/html/draft-ooamdt-rtgwg-oam-gap-analysis-00">
https://tools.ietf.org/html/draft-ooamdt-rtgwg-oam-gap-analysis-00</a><o:p>=
</o:p></p>
</blockquote>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ti=
mes New Roman&quot;,&quot;serif&quot;"><br>
Both documents have subsections pro-active and on-demand for FM<br>
but active and passive for PM.<br>
<br>
Why is there no distinction made for active and passive FM, <br>
and pro-active and on-demand for PM?<br>
<br>
Best regards, Huub.<br>
<br>
<br>
<br>
<o:p></o:p></span></p>
<pre>-- <o:p></o:p></pre>
<pre>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<o:p></o:p></pre>
<pre>Always remember that you are unique...just like everyone else...<o:p><=
/o:p></pre>
</div>
</body>
</html>

--_000_7347100B5761DC41A166AC17F22DF11221ABE855eusaamb103erics_--


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From: "Reshad Rahman (rrahman)" <rrahman@cisco.com>
To: "Acee Lindem (acee)" <acee@cisco.com>, "Benoit Claise (bclaise)" <bclaise@cisco.com>, "draft-ietf-rtgwg-yang-key-chain@tools.ietf.org" <draft-ietf-rtgwg-yang-key-chain@tools.ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: Re: draft-ietf-rtgwg-yang-key-chain: YANG compilation
Thread-Topic: draft-ietf-rtgwg-yang-key-chain: YANG compilation
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Is there still a small issue in draft-ietf-rtgwg-yang-key-chain-03

4 Key Chain YANG Model

   <CODE BEGINS> file "ietf-routing-key-chain@2016-06-27.yang"





On 2016-06-28, 7:42 AM, "rtgwg on behalf of Acee Lindem (acee)"
<rtgwg-bounces@ietf.org on behalf of acee@cisco.com> wrote:

>Derek, Stephane, and Xufeng,
>
>Due to popular demand, we have restored the name of the key-chain module
>to simply =B3ietf-key-chain=B2. Please update references prior to the July=
 8th
>cut-off.=20
>
>Thanks,
>Acee=20
>
>On 6/28/16, 2:59 AM, "rtgwg on behalf of Benoit Claise (bclaise)"
><rtgwg-bounces@ietf.org on behalf of bclaise@cisco.com> wrote:
>
>>Also, note that 7 YANG modules currently fail because of this issue,
>>while they compiled fine with v2.
>>     ietf-bier.yang
>>     ietf-isis-sr@2016-03-21.yang
>>     ietf-isis@2016-03-21.yang
>>     ietf-ospf-bfd@2016-03-20.yang
>>     ietf-ospf-sr@2016-03-20.yang
>>     ietf-ospf@2016-03-20.yang
>>     ietf-rip@2016-01-28.yang
>>
>>Search for "ietf-routing-key-chain" in
>>http://www.claise.be/IETFYANGPageCompilation.html
>>
>>Regards, Benoit
>>> Dear draft-ietf-rtgwg-yang-key-chain-03,
>>>
>>> The YANG module compilation in your draft fails with the following
>>> warning:
>>> ietf-routing-key-chain@2016-06-27.yang:1: warning: unexpected
>>> modulename "ietf-key-chain" in ietf-routing-key-chain@2016-06-27.yang,
>>> should be ietf-routing-key-chain
>>> See http://www.claise.be/IETFYANGPageCompilation.html
>>>
>>> The previous version 02 was fine in that regards.
>>>
>>> This warning should have been flagged in idnits. Let me know if this
>>> was not the case.
>>> www.yangvalidator.com can also be useful.
>>>
>>> Regards, Benoit
>>
>>_______________________________________________
>>rtgwg mailing list
>>rtgwg@ietf.org
>>https://www.ietf.org/mailman/listinfo/rtgwg
>
>_______________________________________________
>rtgwg mailing list
>rtgwg@ietf.org
>https://www.ietf.org/mailman/listinfo/rtgwg


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From: "Acee Lindem (acee)" <acee@cisco.com>
To: "Reshad Rahman (rrahman)" <rrahman@cisco.com>, "Benoit Claise (bclaise)" <bclaise@cisco.com>, "draft-ietf-rtgwg-yang-key-chain@tools.ietf.org" <draft-ietf-rtgwg-yang-key-chain@tools.ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: Re: draft-ietf-rtgwg-yang-key-chain: YANG compilation
Thread-Topic: draft-ietf-rtgwg-yang-key-chain: YANG compilation
Thread-Index: AQHR0QmYyvKcueWKj0qg1yviBa67KZ/+tjCAgAAL9oCACQfKAP//vwmA
Date: Mon, 4 Jul 2016 01:43:57 +0000
Message-ID: <D39F3740.67D96%acee@cisco.com>
References: <0f35716a-f7fd-e0a7-079c-6ff128f19043@cisco.com> <916aea98-b4ad-e56a-2dd7-18826aec3f42@cisco.com> <D397DA40.670DE%acee@cisco.com> <D39F354C.17983A%rrahman@cisco.com>
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From: "Reshad Rahman (rrahman)" <rrahman@cisco.com>
To: "Acee Lindem (acee)" <acee@cisco.com>, "Benoit Claise (bclaise)" <bclaise@cisco.com>, "draft-ietf-rtgwg-yang-key-chain@tools.ietf.org" <draft-ietf-rtgwg-yang-key-chain@tools.ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: Re: draft-ietf-rtgwg-yang-key-chain: YANG compilation
Thread-Topic: draft-ietf-rtgwg-yang-key-chain: YANG compilation
Thread-Index: AQHR0QmYV1SKFZ6uPkmMytzao/HxoZ/+xvSAgABPBoCACIGmAIAARS2A//+/nwA=
Date: Mon, 4 Jul 2016 01:53:38 +0000
Message-ID: <D39F3996.179886%rrahman@cisco.com>
References: <0f35716a-f7fd-e0a7-079c-6ff128f19043@cisco.com> <916aea98-b4ad-e56a-2dd7-18826aec3f42@cisco.com> <D397DA40.670DE%acee@cisco.com> <D39F354C.17983A%rrahman@cisco.com> <D39F3740.67D96%acee@cisco.com>
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From nobody Sun Jul  3 23:29:50 2016
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Subject: Re: draft-ietf-rtgwg-yang-key-chain: YANG compilation
To: "Reshad Rahman (rrahman)" <rrahman@cisco.com>, "Acee Lindem (acee)" <acee@cisco.com>, "draft-ietf-rtgwg-yang-key-chain@tools.ietf.org" <draft-ietf-rtgwg-yang-key-chain@tools.ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>
References: <0f35716a-f7fd-e0a7-079c-6ff128f19043@cisco.com> <916aea98-b4ad-e56a-2dd7-18826aec3f42@cisco.com> <D397DA40.670DE%acee@cisco.com> <D39F354C.17983A%rrahman@cisco.com> <D39F3740.67D96%acee@cisco.com> <D39F3996.179886%rrahman@cisco.com>
From: Benoit Claise <bclaise@cisco.com>
Message-ID: <c44fcd90-a56e-79f1-3f1b-5c275f19a857@cisco.com>
Date: Mon, 4 Jul 2016 08:29:43 +0200
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Cc: Xufeng Liu <xufeng.liu@ericsson.com>
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Please report it as a bug
https://datatracker.ietf.org/doc/draft-ietf-rtgwg-yang-key-chain/
     => very last line of the page.

Regards, B.
> Thanks Acee. I was on
> https://tools.ietf.org/html/draft-ietf-rtgwg-yang-key-chain-03 and it
> showed 03 as latest. When I went to 02 it showed up to 06.
>
>
>
> On 2016-07-03, 9:43 PM, "Acee Lindem (acee)" <acee@cisco.com> wrote:
>
>> Reshad - you are looking at an older version. Look at the latest,
>> https://www.ietf.org/id/draft-ietf-rtgwg-yang-key-chain-06.txt
>> Acee
>>
>> On 7/3/16, 9:36 PM, "Reshad Rahman (rrahman)" <rrahman@cisco.com> wrote:
>>
>>> Is there still a small issue in draft-ietf-rtgwg-yang-key-chain-03
>>>
>>> 4 Key Chain YANG Model
>>>
>>>    <CODE BEGINS> file "ietf-routing-key-chain@2016-06-27.yang"
>>>
>>>
>>>
>>>
>>>
>>> On 2016-06-28, 7:42 AM, "rtgwg on behalf of Acee Lindem (acee)"
>>> <rtgwg-bounces@ietf.org on behalf of acee@cisco.com> wrote:
>>>
>>>> Derek, Stephane, and Xufeng,
>>>>
>>>> Due to popular demand, we have restored the name of the key-chain module
>>>> to simply Â³ietf-key-chainÂ². Please update references prior to the July
>>>> 8th
>>>> cut-off.
>>>>
>>>> Thanks,
>>>> Acee
>>>>
>>>> On 6/28/16, 2:59 AM, "rtgwg on behalf of Benoit Claise (bclaise)"
>>>> <rtgwg-bounces@ietf.org on behalf of bclaise@cisco.com> wrote:
>>>>
>>>>> Also, note that 7 YANG modules currently fail because of this issue,
>>>>> while they compiled fine with v2.
>>>>>      ietf-bier.yang
>>>>>      ietf-isis-sr@2016-03-21.yang
>>>>>      ietf-isis@2016-03-21.yang
>>>>>      ietf-ospf-bfd@2016-03-20.yang
>>>>>      ietf-ospf-sr@2016-03-20.yang
>>>>>      ietf-ospf@2016-03-20.yang
>>>>>      ietf-rip@2016-01-28.yang
>>>>>
>>>>> Search for "ietf-routing-key-chain" in
>>>>> http://www.claise.be/IETFYANGPageCompilation.html
>>>>>
>>>>> Regards, Benoit
>>>>>> Dear draft-ietf-rtgwg-yang-key-chain-03,
>>>>>>
>>>>>> The YANG module compilation in your draft fails with the following
>>>>>> warning:
>>>>>> ietf-routing-key-chain@2016-06-27.yang:1: warning: unexpected
>>>>>> modulename "ietf-key-chain" in
>>>>>> ietf-routing-key-chain@2016-06-27.yang,
>>>>>> should be ietf-routing-key-chain
>>>>>> See http://www.claise.be/IETFYANGPageCompilation.html
>>>>>>
>>>>>> The previous version 02 was fine in that regards.
>>>>>>
>>>>>> This warning should have been flagged in idnits. Let me know if this
>>>>>> was not the case.
>>>>>> www.yangvalidator.com can also be useful.
>>>>>>
>>>>>> Regards, Benoit
>>>>> _______________________________________________
>>>>> rtgwg mailing list
>>>>> rtgwg@ietf.org
>>>>> https://www.ietf.org/mailman/listinfo/rtgwg
>>>> _______________________________________________
>>>> rtgwg mailing list
>>>> rtgwg@ietf.org
>>>> https://www.ietf.org/mailman/listinfo/rtgwg


From nobody Mon Jul  4 00:46:23 2016
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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 Routing Area Working Group of the IETF.

        Title           : SPF Back-off algorithm for link state IGPs
        Authors         : Bruno Decraene
                          Stephane Litkowski
                          Hannes Gredler
                          Acee Lindem
                          Pierre Francois
                          Chris Bowers
	Filename        : draft-ietf-rtgwg-backoff-algo-03.txt
	Pages           : 11
	Date            : 2016-07-04

Abstract:
   This document defines a standard algorithm to back-off link-state IGP
   SPF computations.

   Having one standard algorithm improves interoperability by reducing
   the probability and/or duration of transient forwarding loops during
   the IGP convergence when the IGP reacts to multiple proximate IGP
   events.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-rtgwg-backoff-algo/

There's also a htmlized version available at:
https://tools.ietf.org/html/draft-ietf-rtgwg-backoff-algo-03

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-rtgwg-backoff-algo-03


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

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


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From: "Saumya Dikshit (sadikshi)" <sadikshi@cisco.com>
To: Gregory Mirsky <gregory.mirsky@ericsson.com>, "BIER (bier@ietf.org)" <bier@ietf.org>, "sfc@ietf.org" <sfc@ietf.org>, "nvo3@ietf.org" <nvo3@ietf.org>, "rtg-ooam-dt@ietf.org" <rtg-ooam-dt@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: Re: [nvo3] Comments to OOAM Requirements draft from Ron Bonica
Thread-Topic: [nvo3] Comments to OOAM Requirements draft from Ron Bonica
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--_000_D3A0227568F4Dsadikshiciscocom_
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Hi Greg,

I have following queries on  Overlay OAM Requirements<https://tools.ietf.or=
g/html/draft-ooamdt-rtgwg-ooam-requirement-00>:


>>>>> REQ#6:  Overlay OAM packets SHOULD be fate sharing with data traffic,
            i.e. in-band with the monitored traffic, i.e. follow exactly
            the same path as data plane traffic, in forward direction,
            i.e. from ingress toward egress end point(s) of the OAM test
            session.

"Exactly same path", should be made explicit if it's referring to the under=
lay transport path.

"OAM packets SHOULD be fate sharing with data traffic" will not apply to "R=
EQ#3:  centralized controller".
I think "SHOULD" should be treated as a "MUST" if the reference is within t=
he document :)



>>>>> REQ#11: Overlay OAM MUST support fault localization of Loss of
            Continuity check.

Does the "localization" maps to overlay node/link context ? Can we have a "=
MAY" requirement for mapping
it to underlay. Since in datacenter, with more of east-west traffic, there =
might be deployment requirement
to narrow down to underlay for a speedier fault management.

REQ#22 - REQ#25 refer to "per-segment".
A "segment" maps to a NVO-tunnel?  Shouldn't there be on a  per-VNI basis a=
s well.


>>>>> REQ#7:  Overlay OAM MUST support bi-directional OAM methods.  Such
            OAM methods MAY combine in-band monitoring or measurement in
            forward direction and out-of-band notification in the
            reverse direction, i.e. from egress to ingress end point of
            the OAM test session.


In case of optical deployments like, fiber management (both request and res=
ponse) can be out-of-band, hence may
need a mention here.


Thanks
Saumya

From: nvo3 <nvo3-bounces@ietf.org<mailto:nvo3-bounces@ietf.org>> on behalf =
of Gregory Mirsky <gregory.mirsky@ericsson.com<mailto:gregory.mirsky@ericss=
on.com>>
Date: Tuesday, April 5, 2016 at 1:39 AM
To: "BIER (bier@ietf.org<mailto:bier@ietf.org>)" <bier@ietf.org<mailto:bier=
@ietf.org>>, "sfc@ietf.org<mailto:sfc@ietf.org>" <sfc@ietf.org<mailto:sfc@i=
etf.org>>, "nvo3@ietf.org<mailto:nvo3@ietf.org>" <nvo3@ietf.org<mailto:nvo3=
@ietf.org>>, "rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>" <rtg-ooam-=
dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>>, "rtgwg@ietf.org<mailto:rtgwg@iet=
f.org>" <rtgwg@ietf.org<mailto:rtgwg@ietf.org>>
Cc: "rbonica@juniper.net<mailto:rbonica@juniper.net>" <rbonica@juniper.net<=
mailto:rbonica@juniper.net>>
Subject: [nvo3] Comments to OOAM Requirements draft from Ron Bonica

Dear All,
Ron reviewed the Overlay OAM Requirements<https://tools.ietf.org/html/draft=
-ooamdt-rtgwg-ooam-requirement-00> draft and shared his comments under RB> =
tag. The attached copy has my responses in under GIM> tag as well. We invit=
e members of BIER, NVO3, SCC and RTG WGs to join in the discussion. Appreci=
ate you review, comments on OOAM Requirements draft and OAM for Overlay Net=
works: Gap Analysis.

                Regards,
                                Greg

--_000_D3A0227568F4Dsadikshiciscocom_
Content-Type: text/html; charset="iso-8859-1"
Content-ID: <54A12C80EC4A9D47BC12A6E7B1505CFF@emea.cisco.com>
Content-Transfer-Encoding: quoted-printable

<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859-=
1">
</head>
<body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-lin=
e-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-fami=
ly: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Hi Greg,</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
I have following queries on&nbsp;<span style=3D"font-size: 15px;">&nbsp;</s=
pan><a href=3D"https://tools.ietf.org/html/draft-ooamdt-rtgwg-ooam-requirem=
ent-00" style=3D"font-size: 15px;">Overlay OAM Requirements</a>:</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;">&gt;&gt;&gt;&gt;&gt; <i>REQ#6:  Overlay OAM pac=
kets SHOULD be fate sharing with data traffic,
            i.e. in-band with the monitored traffic, i.e. follow exactly
            the same path as data plane traffic, in forward direction,
            i.e. from ingress toward egress end point(s) of the OAM test
            session.</i></pre>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
&#8220;Exactly same path&#8221;, should be made explicit if it&#8217;s refe=
rring to the underlay transport path.</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<font face=3D"Calibri,sans-serif" style=3D"widows: 1;">&quot;</font><span s=
tyle=3D"widows: 1;"><font face=3D"Calibri,sans-serif"><span style=3D"font-s=
tyle: italic; font-size: 13.3333px;">OAM packets SHOULD be fate sharing wit=
h data traffic</span><span style=3D"font-style: italic; font-size: 13px;">&=
#8221;</span><span style=3D"font-size: 13.3333px;"><i>&nbsp;</i>will
 not apply to &quot;</span></font></span><i style=3D"widows: 1;"><span styl=
e=3D"font-size: 13.3333px;">REQ#3: &nbsp;</span><span style=3D"font-size: 1=
3.3333px;">centralized controller</span><span style=3D"font-size: 13px;">&#=
8221;</span><span style=3D"font-size: 13.3333px;">.</span></i></div>
<div style=3D"widows: 1;">I think &#8220;SHOULD&#8221; should be treated as=
 a &#8220;MUST&#8221; if the reference is within the document :)</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;"><i>&gt;&gt;&gt;&gt;&gt; REQ#11: Overlay OAM MUS=
T support fault localization of Loss of
            Continuity check.</i></pre>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Does the &#8220;localization&#8221; maps to overlay node/link context ? Can=
 we have a &#8220;MAY&#8221; requirement for mapping</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
it to underlay. Since in datacenter, with more of east-west traffic, there =
might be deployment requirement</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
to narrow down to underlay for a speedier fault management.</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
REQ#22 &#8212; REQ#25 refer to &#8220;per-segment&#8221;.&nbsp;</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
A &#8220;segment&#8221; maps to a NVO-tunnel? &nbsp;Shouldn&#8217;t there b=
e on a &nbsp;per-VNI basis as well.</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;"><i>&gt;&gt;&gt;&gt;&gt; REQ#7:  Overlay OAM MUS=
T support bi-directional OAM methods.  Such
            OAM methods MAY combine in-band monitoring or measurement in
            forward direction and out-of-band notification in the
            reverse direction, i.e. from egress to ingress end point of
            the OAM test session.</i>
</pre>
<div><br>
</div>
<div>In case of optical deployments like, fiber management (both request an=
d response) can be out-of-band, hence may</div>
<div>need a mention here.&nbsp;</div>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Thanks</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Saumya</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION" style=3D"color: rgb(0, 0, 0); font-family=
: Calibri, sans-serif; font-size: 14px;">
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 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid;=
 BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<span style=3D"font-weight:bold">From: </span>nvo3 &lt;<a href=3D"mailto:nv=
o3-bounces@ietf.org">nvo3-bounces@ietf.org</a>&gt; on behalf of Gregory Mir=
sky &lt;<a href=3D"mailto:gregory.mirsky@ericsson.com">gregory.mirsky@erics=
son.com</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Tuesday, April 5, 2016 at 1:3=
9 AM<br>
<span style=3D"font-weight:bold">To: </span>&quot;BIER (<a href=3D"mailto:b=
ier@ietf.org">bier@ietf.org</a>)&quot; &lt;<a href=3D"mailto:bier@ietf.org"=
>bier@ietf.org</a>&gt;, &quot;<a href=3D"mailto:sfc@ietf.org">sfc@ietf.org<=
/a>&quot; &lt;<a href=3D"mailto:sfc@ietf.org">sfc@ietf.org</a>&gt;, &quot;<=
a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&quot;
 &lt;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&gt;, &quot;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&quot; &lt;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&gt;, &quot;<a hre=
f=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&quot; &lt;<a href=3D"mailto:=
rtgwg@ietf.org">rtgwg@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:rbonica=
@juniper.net">rbonica@juniper.net</a>&quot; &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>[nvo3] Comments to OOAM Re=
quirements draft from Ron Bonica<br>
</div>
<div><br>
</div>
<div xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micro=
soft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" x=
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<div class=3D"WordSection1">
<p class=3D"MsoNormal">Dear All,<o:p></o:p></p>
<p class=3D"MsoNormal">Ron reviewed the <a href=3D"https://tools.ietf.org/h=
tml/draft-ooamdt-rtgwg-ooam-requirement-00">
Overlay OAM Requirements</a> draft and shared his comments under RB&gt; tag=
. The attached copy has my responses in under GIM&gt; tag as well. We invit=
e members of BIER, NVO3, SCC and RTG WGs to join in the discussion. Appreci=
ate you review, comments on OOAM Requirements
 draft and OAM for Overlay Networks: Gap Analysis.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Regards,<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Greg<o:p></o:p>=
</p>
</div>
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From: "Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com>
To: "Saumya Dikshit (sadikshi)" <sadikshi@cisco.com>, Gregory Mirsky <gregory.mirsky@ericsson.com>, "BIER (bier@ietf.org)" <bier@ietf.org>, "sfc@ietf.org" <sfc@ietf.org>, "nvo3@ietf.org" <nvo3@ietf.org>, "rtg-ooam-dt@ietf.org" <rtg-ooam-dt@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: Re: [Bier] [nvo3] Comments to OOAM Requirements draft from Ron Bonica
Thread-Topic: [Bier] [nvo3] Comments to OOAM Requirements draft from Ron Bonica
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--_000_D39FBA4116A342naikumarciscocom_
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HI Saumya,

Please see inline..

Hi Greg,

I have following queries on  Overlay OAM Requirements<https://tools.ietf.or=
g/html/draft-ooamdt-rtgwg-ooam-requirement-00>:


>>>>> REQ#6:  Overlay OAM packets SHOULD be fate sharing with data traffic,
            i.e. in-band with the monitored traffic, i.e. follow exactly
            the same path as data plane traffic, in forward direction,
            i.e. from ingress toward egress end point(s) of the OAM test
            session.

"Exactly same path", should be made explicit if it's referring to the under=
lay transport path.

<Nagendra> Yes, that is the intention. We will clarify it.

"OAM packets SHOULD be fate sharing with data traffic" will not apply to "R=
EQ#3:  centralized controller".
I think "SHOULD" should be treated as a "MUST" if the reference is within t=
he document :)



>>>>> REQ#11: Overlay OAM MUST support fault localization of Loss of
            Continuity check.

Does the "localization" maps to overlay node/link context ? Can we have a "=
MAY" requirement for mapping
it to underlay. Since in datacenter, with more of east-west traffic, there =
might be deployment requirement
to narrow down to underlay for a speedier fault management.

<Nagendra> MAY statement sounds reasonable.

REQ#22 - REQ#25 refer to "per-segment".
A "segment" maps to a NVO-tunnel?

<Nagendra> Yes, a segment referes to NVO tunnel between NVEs. Multiple such=
 segments may comprise an end-to-end tunnel.

 Shouldn't there be on a  per-VNI basis as well.

<Nagendra>I think  the granularity should definitely at per-VNI level.


>>>>> REQ#7:  Overlay OAM MUST support bi-directional OAM methods.  Such
            OAM methods MAY combine in-band monitoring or measurement in
            forward direction and out-of-band notification in the
            reverse direction, i.e. from egress to ingress end point of
            the OAM test session.

In case of optical deployments like, fiber management (both request and res=
ponse) can be out-of-band, hence may
need a mention here.
<Nagendra> I see. We will check this.

Thanks for your comments.

Regards,
Nagendra


Thanks
Saumya

From: nvo3 <nvo3-bounces@ietf.org<mailto:nvo3-bounces@ietf.org>> on behalf =
of Gregory Mirsky <gregory.mirsky@ericsson.com<mailto:gregory.mirsky@ericss=
on.com>>
Date: Tuesday, April 5, 2016 at 1:39 AM
To: "BIER (bier@ietf.org<mailto:bier@ietf.org>)" <bier@ietf.org<mailto:bier=
@ietf.org>>, "sfc@ietf.org<mailto:sfc@ietf.org>" <sfc@ietf.org<mailto:sfc@i=
etf.org>>, "nvo3@ietf.org<mailto:nvo3@ietf.org>" <nvo3@ietf.org<mailto:nvo3=
@ietf.org>>, "rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>" <rtg-ooam-=
dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>>, "rtgwg@ietf.org<mailto:rtgwg@iet=
f.org>" <rtgwg@ietf.org<mailto:rtgwg@ietf.org>>
Cc: "rbonica@juniper.net<mailto:rbonica@juniper.net>" <rbonica@juniper.net<=
mailto:rbonica@juniper.net>>
Subject: [nvo3] Comments to OOAM Requirements draft from Ron Bonica

Dear All,
Ron reviewed the Overlay OAM Requirements<https://tools.ietf.org/html/draft=
-ooamdt-rtgwg-ooam-requirement-00> draft and shared his comments under RB> =
tag. The attached copy has my responses in under GIM> tag as well. We invit=
e members of BIER, NVO3, SCC and RTG WGs to join in the discussion. Appreci=
ate you review, comments on OOAM Requirements draft and OAM for Overlay Net=
works: Gap Analysis.

                Regards,
                                Greg

--_000_D39FBA4116A342naikumarciscocom_
Content-Type: text/html; charset="iso-8859-1"
Content-ID: <EBC42840D2EEC44E89CB286DE6305DAD@emea.cisco.com>
Content-Transfer-Encoding: quoted-printable

<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859-=
1">
</head>
<body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-lin=
e-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-fami=
ly: Calibri, sans-serif;">
<div>HI Saumya,</div>
<div><br>
</div>
<div>Please see inline..</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Hi Greg,</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
I have following queries on&nbsp;<span style=3D"font-size: 15px;">&nbsp;</s=
pan><a href=3D"https://tools.ietf.org/html/draft-ooamdt-rtgwg-ooam-requirem=
ent-00" style=3D"font-size: 15px;">Overlay OAM Requirements</a>:</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;">&gt;&gt;&gt;&gt;&gt; <i>REQ#6:  Overlay OAM pac=
kets SHOULD be fate sharing with data traffic,
            i.e. in-band with the monitored traffic, i.e. follow exactly
            the same path as data plane traffic, in forward direction,
            i.e. from ingress toward egress end point(s) of the OAM test
            session.</i></pre>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
&#8220;Exactly same path&#8221;, should be made explicit if it&#8217;s refe=
rring to the underlay transport path.</div>
</div>
</div>
</span>
<div><br>
</div>
<div>&lt;Nagendra&gt; Yes, that is the intention. We will clarify it.</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<font face=3D"Calibri,sans-serif" style=3D"widows: 1;">&quot;</font><span s=
tyle=3D"widows: 1;"><font face=3D"Calibri,sans-serif"><span style=3D"font-s=
tyle: italic; font-size: 13.3333px;">OAM packets SHOULD be fate sharing wit=
h data traffic</span><span style=3D"font-style: italic; font-size: 13px;">&=
#8221;</span><span style=3D"font-size: 13.3333px;"><i>&nbsp;</i>will
 not apply to &quot;</span></font></span><i style=3D"widows: 1;"><span styl=
e=3D"font-size: 13.3333px;">REQ#3: &nbsp;</span><span style=3D"font-size: 1=
3.3333px;">centralized controller</span><span style=3D"font-size: 13px;">&#=
8221;</span><span style=3D"font-size: 13.3333px;">.</span></i></div>
<div style=3D"widows: 1;">I think &#8220;SHOULD&#8221; should be treated as=
 a &#8220;MUST&#8221; if the reference is within the document :)</div>
</div>
</div>
</span>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;"><i>&gt;&gt;&gt;&gt;&gt; REQ#11: Overlay OAM MUS=
T support fault localization of Loss of
            Continuity check.</i></pre>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Does the &#8220;localization&#8221; maps to overlay node/link context ? Can=
 we have a &#8220;MAY&#8221; requirement for mapping</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
it to underlay. Since in datacenter, with more of east-west traffic, there =
might be deployment requirement</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
to narrow down to underlay for a speedier fault management.</div>
</div>
</div>
</span>
<div><br>
</div>
<div>&lt;Nagendra&gt; MAY statement sounds reasonable.</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
REQ#22 &#8212; REQ#25 refer to &#8220;per-segment&#8221;.&nbsp;</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
A &#8220;segment&#8221; maps to a NVO-tunnel?&nbsp;</div>
</div>
</div>
</span>
<div><br>
</div>
<div>&lt;Nagendra&gt; Yes, a segment referes to NVO tunnel between NVEs. Mu=
ltiple such segments may comprise an end-to-end tunnel.</div>
<div><br>
</div>
<div>&nbsp;Shouldn&#8217;t there be on a &nbsp;per-VNI basis as well.</div>
<div><br>
</div>
<div>&lt;Nagendra&gt;I think &nbsp;the granularity should definitely at per=
-VNI level.&nbsp;</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;"><i>&gt;&gt;&gt;&gt;&gt; REQ#7:  Overlay OAM MUS=
T support bi-directional OAM methods.  Such
            OAM methods MAY combine in-band monitoring or measurement in
            forward direction and out-of-band notification in the
            reverse direction, i.e. from egress to ingress end point of
            the OAM test session.</i></pre>
<div><br>
</div>
<div>In case of optical deployments like, fiber management (both request an=
d response) can be out-of-band, hence may</div>
<div>need a mention here.&nbsp;</div>
</div>
</div>
</div>
</span>
<div>&lt;Nagendra&gt; I see. We will check this.</div>
<div><br>
</div>
<div>Thanks for your comments.</div>
<div><br>
</div>
<div>Regards,</div>
<div>Nagendra</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Thanks</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Saumya</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION" style=3D"color: rgb(0, 0, 0); font-family=
: Calibri, sans-serif; font-size: 14px;">
<div style=3D"font-family:Calibri; font-size:11pt; text-align:left; color:b=
lack; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM:=
 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid;=
 BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<span style=3D"font-weight:bold">From: </span>nvo3 &lt;<a href=3D"mailto:nv=
o3-bounces@ietf.org">nvo3-bounces@ietf.org</a>&gt; on behalf of Gregory Mir=
sky &lt;<a href=3D"mailto:gregory.mirsky@ericsson.com">gregory.mirsky@erics=
son.com</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Tuesday, April 5, 2016 at 1:3=
9 AM<br>
<span style=3D"font-weight:bold">To: </span>&quot;BIER (<a href=3D"mailto:b=
ier@ietf.org">bier@ietf.org</a>)&quot; &lt;<a href=3D"mailto:bier@ietf.org"=
>bier@ietf.org</a>&gt;, &quot;<a href=3D"mailto:sfc@ietf.org">sfc@ietf.org<=
/a>&quot; &lt;<a href=3D"mailto:sfc@ietf.org">sfc@ietf.org</a>&gt;, &quot;<=
a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&quot;
 &lt;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&gt;, &quot;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&quot; &lt;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&gt;, &quot;<a hre=
f=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&quot; &lt;<a href=3D"mailto:=
rtgwg@ietf.org">rtgwg@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:rbonica=
@juniper.net">rbonica@juniper.net</a>&quot; &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>[nvo3] Comments to OOAM Re=
quirements draft from Ron Bonica<br>
</div>
<div><br>
</div>
<div xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micro=
soft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" x=
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<div lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal">Dear All,<o:p></o:p></p>
<p class=3D"MsoNormal">Ron reviewed the <a href=3D"https://tools.ietf.org/h=
tml/draft-ooamdt-rtgwg-ooam-requirement-00">
Overlay OAM Requirements</a> draft and shared his comments under RB&gt; tag=
. The attached copy has my responses in under GIM&gt; tag as well. We invit=
e members of BIER, NVO3, SCC and RTG WGs to join in the discussion. Appreci=
ate you review, comments on OOAM Requirements
 draft and OAM for Overlay Networks: Gap Analysis.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Regards,<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Greg<o:p></o:p>=
</p>
</div>
</div>
</div>
</span></div>
</div>
</span>
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--_000_D39FBA4116A342naikumarciscocom_--


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From: "Saumya Dikshit (sadikshi)" <sadikshi@cisco.com>
To: "Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com>, Gregory Mirsky <gregory.mirsky@ericsson.com>, "BIER (bier@ietf.org)" <bier@ietf.org>, "sfc@ietf.org" <sfc@ietf.org>, "nvo3@ietf.org" <nvo3@ietf.org>, "rtg-ooam-dt@ietf.org" <rtg-ooam-dt@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: Re: [Bier] [nvo3] Comments to OOAM Requirements draft from Ron Bonica
Thread-Topic: [Bier] [nvo3] Comments to OOAM Requirements draft from Ron Bonica
Thread-Index: AQHR1dNfu0FhL91PBUWmOM4v6y61oaAIcTgAgADRbIA=
Date: Mon, 4 Jul 2016 18:09:02 +0000
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References: <D3A02275.68F4D%sadikshi@cisco.com> <D39FBA41.16A342%naikumar@cisco.com>
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Hi Nagendra,

Thanks for the response. I missed this one in the below email:


>>>>> REQ#14: Overlay OAM MUST have the ability to discover and exercise
            equal cost multipath (ECMP) paths in its transport network.


This will require the underlay nodes/router/switches to support OAM semanti=
cs, which may not be possible
in case of brownfield deployments (deploying NVO tunnels over existing IP-c=
ore network).


Regards,
Saumya.


From: "Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com<mailto:naikuma=
r@cisco.com>>
Date: Monday, July 4, 2016 at 4:39 PM
To: sadikshi <sadikshi@cisco.com<mailto:sadikshi@cisco.com>>, Gregory Mirsk=
y <gregory.mirsky@ericsson.com<mailto:gregory.mirsky@ericsson.com>>, "BIER =
(bier@ietf.org<mailto:bier@ietf.org>)" <bier@ietf.org<mailto:bier@ietf.org>=
>, "sfc@ietf.org<mailto:sfc@ietf.org>" <sfc@ietf.org<mailto:sfc@ietf.org>>,=
 "nvo3@ietf.org<mailto:nvo3@ietf.org>" <nvo3@ietf.org<mailto:nvo3@ietf.org>=
>, "rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>" <rtg-ooam-dt@ietf.or=
g<mailto:rtg-ooam-dt@ietf.org>>, "rtgwg@ietf.org<mailto:rtgwg@ietf.org>" <r=
tgwg@ietf.org<mailto:rtgwg@ietf.org>>
Cc: "rbonica@juniper.net<mailto:rbonica@juniper.net>" <rbonica@juniper.net<=
mailto:rbonica@juniper.net>>
Subject: Re: [Bier] [nvo3] Comments to OOAM Requirements draft from Ron Bon=
ica

HI Saumya,

Please see inline..

Hi Greg,

I have following queries on  Overlay OAM Requirements<https://tools.ietf.or=
g/html/draft-ooamdt-rtgwg-ooam-requirement-00>:


>>>>> REQ#6:  Overlay OAM packets SHOULD be fate sharing with data traffic,
            i.e. in-band with the monitored traffic, i.e. follow exactly
            the same path as data plane traffic, in forward direction,
            i.e. from ingress toward egress end point(s) of the OAM test
            session.

"Exactly same path", should be made explicit if it's referring to the under=
lay transport path.

<Nagendra> Yes, that is the intention. We will clarify it.

"OAM packets SHOULD be fate sharing with data traffic" will not apply to "R=
EQ#3:  centralized controller".
I think "SHOULD" should be treated as a "MUST" if the reference is within t=
he document :)



>>>>> REQ#11: Overlay OAM MUST support fault localization of Loss of
            Continuity check.

Does the "localization" maps to overlay node/link context ? Can we have a "=
MAY" requirement for mapping
it to underlay. Since in datacenter, with more of east-west traffic, there =
might be deployment requirement
to narrow down to underlay for a speedier fault management.

<Nagendra> MAY statement sounds reasonable.

REQ#22 - REQ#25 refer to "per-segment".
A "segment" maps to a NVO-tunnel?

<Nagendra> Yes, a segment referes to NVO tunnel between NVEs. Multiple such=
 segments may comprise an end-to-end tunnel.

 Shouldn't there be on a  per-VNI basis as well.

<Nagendra>I think  the granularity should definitely at per-VNI level.


>>>>> REQ#7:  Overlay OAM MUST support bi-directional OAM methods.  Such
            OAM methods MAY combine in-band monitoring or measurement in
            forward direction and out-of-band notification in the
            reverse direction, i.e. from egress to ingress end point of
            the OAM test session.

In case of optical deployments like, fiber management (both request and res=
ponse) can be out-of-band, hence may
need a mention here.
<Nagendra> I see. We will check this.

Thanks for your comments.

Regards,
Nagendra


Thanks
Saumya

From: nvo3 <nvo3-bounces@ietf.org<mailto:nvo3-bounces@ietf.org>> on behalf =
of Gregory Mirsky <gregory.mirsky@ericsson.com<mailto:gregory.mirsky@ericss=
on.com>>
Date: Tuesday, April 5, 2016 at 1:39 AM
To: "BIER (bier@ietf.org<mailto:bier@ietf.org>)" <bier@ietf.org<mailto:bier=
@ietf.org>>, "sfc@ietf.org<mailto:sfc@ietf.org>" <sfc@ietf.org<mailto:sfc@i=
etf.org>>, "nvo3@ietf.org<mailto:nvo3@ietf.org>" <nvo3@ietf.org<mailto:nvo3=
@ietf.org>>, "rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>" <rtg-ooam-=
dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>>, "rtgwg@ietf.org<mailto:rtgwg@iet=
f.org>" <rtgwg@ietf.org<mailto:rtgwg@ietf.org>>
Cc: "rbonica@juniper.net<mailto:rbonica@juniper.net>" <rbonica@juniper.net<=
mailto:rbonica@juniper.net>>
Subject: [nvo3] Comments to OOAM Requirements draft from Ron Bonica

Dear All,
Ron reviewed the Overlay OAM Requirements<https://tools.ietf.org/html/draft=
-ooamdt-rtgwg-ooam-requirement-00> draft and shared his comments under RB> =
tag. The attached copy has my responses in under GIM> tag as well. We invit=
e members of BIER, NVO3, SCC and RTG WGs to join in the discussion. Appreci=
ate you review, comments on OOAM Requirements draft and OAM for Overlay Net=
works: Gap Analysis.

                Regards,
                                Greg

--_000_D3A0A20568FC7sadikshiciscocom_
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<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859-=
1">
</head>
<body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-lin=
e-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-fami=
ly: Calibri, sans-serif;">
<div>Hi Nagendra,</div>
<div><br>
</div>
<div>Thanks for the response. I missed this one in the below email:</div>
<div><br>
</div>
<div>
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;"><i>&gt;&gt;&gt;&gt;&gt; REQ#14: Overlay OAM MUS=
T have the ability to discover and exercise
            equal cost multipath (ECMP) paths in its transport network.</i>
</pre>
</div>
<div><br>
</div>
<div>This will require the underlay nodes/router/switches to support OAM se=
mantics, which may not be possible&nbsp;</div>
<div>in case of brownfield deployments (deploying NVO tunnels over existing=
 IP-core network).&nbsp;</div>
<div><br>
</div>
<div><br>
</div>
<div>Regards,</div>
<div>Saumya.</div>
<div><br>
</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div style=3D"font-family:Calibri; font-size:11pt; text-align:left; color:b=
lack; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM:=
 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid;=
 BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<span style=3D"font-weight:bold">From: </span>&quot;Nagendra Kumar Nainar (=
naikumar)&quot; &lt;<a href=3D"mailto:naikumar@cisco.com">naikumar@cisco.co=
m</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Monday, July 4, 2016 at 4:39 =
PM<br>
<span style=3D"font-weight:bold">To: </span>sadikshi &lt;<a href=3D"mailto:=
sadikshi@cisco.com">sadikshi@cisco.com</a>&gt;, Gregory Mirsky &lt;<a href=
=3D"mailto:gregory.mirsky@ericsson.com">gregory.mirsky@ericsson.com</a>&gt;=
, &quot;BIER (<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>)&quot;
 &lt;<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>&gt;, &quot;<a href=
=3D"mailto:sfc@ietf.org">sfc@ietf.org</a>&quot; &lt;<a href=3D"mailto:sfc@i=
etf.org">sfc@ietf.org</a>&gt;, &quot;<a href=3D"mailto:nvo3@ietf.org">nvo3@=
ietf.org</a>&quot; &lt;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&g=
t;, &quot;<a href=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&=
quot;
 &lt;<a href=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&gt;, =
&quot;<a href=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&quot; &lt;<a hre=
f=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:rbonica=
@juniper.net">rbonica@juniper.net</a>&quot; &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>Re: [Bier] [nvo3] Comments=
 to OOAM Requirements draft from Ron Bonica<br>
</div>
<div><br>
</div>
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div>HI Saumya,</div>
<div><br>
</div>
<div>Please see inline..</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Hi Greg,</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
I have following queries on&nbsp;<span style=3D"font-size: 15px;">&nbsp;</s=
pan><a href=3D"https://tools.ietf.org/html/draft-ooamdt-rtgwg-ooam-requirem=
ent-00" style=3D"font-size: 15px;">Overlay OAM Requirements</a>:</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;">&gt;&gt;&gt;&gt;&gt; <i>REQ#6:  Overlay OAM pac=
kets SHOULD be fate sharing with data traffic,
            i.e. in-band with the monitored traffic, i.e. follow exactly
            the same path as data plane traffic, in forward direction,
            i.e. from ingress toward egress end point(s) of the OAM test
            session.</i></pre>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
&#8220;Exactly same path&#8221;, should be made explicit if it&#8217;s refe=
rring to the underlay transport path.</div>
</div>
</div>
</span>
<div><br>
</div>
<div>&lt;Nagendra&gt; Yes, that is the intention. We will clarify it.</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<font face=3D"Calibri,sans-serif" style=3D"widows: 1;">&quot;</font><span s=
tyle=3D"widows: 1;"><font face=3D"Calibri,sans-serif"><span style=3D"font-s=
tyle: italic; font-size: 13.3333px;">OAM packets SHOULD be fate sharing wit=
h data traffic</span><span style=3D"font-style: italic; font-size: 13px;">&=
#8221;</span><span style=3D"font-size: 13.3333px;"><i>&nbsp;</i>will
 not apply to &quot;</span></font></span><i style=3D"widows: 1;"><span styl=
e=3D"font-size: 13.3333px;">REQ#3: &nbsp;</span><span style=3D"font-size: 1=
3.3333px;">centralized controller</span><span style=3D"font-size: 13px;">&#=
8221;</span><span style=3D"font-size: 13.3333px;">.</span></i></div>
<div style=3D"widows: 1;">I think &#8220;SHOULD&#8221; should be treated as=
 a &#8220;MUST&#8221; if the reference is within the document :)</div>
</div>
</div>
</span>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;"><i>&gt;&gt;&gt;&gt;&gt; REQ#11: Overlay OAM MUS=
T support fault localization of Loss of
            Continuity check.</i></pre>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Does the &#8220;localization&#8221; maps to overlay node/link context ? Can=
 we have a &#8220;MAY&#8221; requirement for mapping</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
it to underlay. Since in datacenter, with more of east-west traffic, there =
might be deployment requirement</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
to narrow down to underlay for a speedier fault management.</div>
</div>
</div>
</span>
<div><br>
</div>
<div>&lt;Nagendra&gt; MAY statement sounds reasonable.</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
REQ#22 &#8212; REQ#25 refer to &#8220;per-segment&#8221;.&nbsp;</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
A &#8220;segment&#8221; maps to a NVO-tunnel?&nbsp;</div>
</div>
</div>
</span>
<div><br>
</div>
<div>&lt;Nagendra&gt; Yes, a segment referes to NVO tunnel between NVEs. Mu=
ltiple such segments may comprise an end-to-end tunnel.</div>
<div><br>
</div>
<div>&nbsp;Shouldn&#8217;t there be on a &nbsp;per-VNI basis as well.</div>
<div><br>
</div>
<div>&lt;Nagendra&gt;I think &nbsp;the granularity should definitely at per=
-VNI level.&nbsp;</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;"><i>&gt;&gt;&gt;&gt;&gt; REQ#7:  Overlay OAM MUS=
T support bi-directional OAM methods.  Such
            OAM methods MAY combine in-band monitoring or measurement in
            forward direction and out-of-band notification in the
            reverse direction, i.e. from egress to ingress end point of
            the OAM test session.</i></pre>
<div><br>
</div>
<div>In case of optical deployments like, fiber management (both request an=
d response) can be out-of-band, hence may</div>
<div>need a mention here.&nbsp;</div>
</div>
</div>
</div>
</span>
<div>&lt;Nagendra&gt; I see. We will check this.</div>
<div><br>
</div>
<div>Thanks for your comments.</div>
<div><br>
</div>
<div>Regards,</div>
<div>Nagendra</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Thanks</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Saumya</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION" style=3D"color: rgb(0, 0, 0); font-family=
: Calibri, sans-serif; font-size: 14px;">
<div style=3D"font-family:Calibri; font-size:11pt; text-align:left; color:b=
lack; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM:=
 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid;=
 BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<span style=3D"font-weight:bold">From: </span>nvo3 &lt;<a href=3D"mailto:nv=
o3-bounces@ietf.org">nvo3-bounces@ietf.org</a>&gt; on behalf of Gregory Mir=
sky &lt;<a href=3D"mailto:gregory.mirsky@ericsson.com">gregory.mirsky@erics=
son.com</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Tuesday, April 5, 2016 at 1:3=
9 AM<br>
<span style=3D"font-weight:bold">To: </span>&quot;BIER (<a href=3D"mailto:b=
ier@ietf.org">bier@ietf.org</a>)&quot; &lt;<a href=3D"mailto:bier@ietf.org"=
>bier@ietf.org</a>&gt;, &quot;<a href=3D"mailto:sfc@ietf.org">sfc@ietf.org<=
/a>&quot; &lt;<a href=3D"mailto:sfc@ietf.org">sfc@ietf.org</a>&gt;, &quot;<=
a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&quot;
 &lt;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&gt;, &quot;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&quot; &lt;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&gt;, &quot;<a hre=
f=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&quot; &lt;<a href=3D"mailto:=
rtgwg@ietf.org">rtgwg@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:rbonica=
@juniper.net">rbonica@juniper.net</a>&quot; &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>[nvo3] Comments to OOAM Re=
quirements draft from Ron Bonica<br>
</div>
<div><br>
</div>
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<div lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal">Dear All,<o:p></o:p></p>
<p class=3D"MsoNormal">Ron reviewed the <a href=3D"https://tools.ietf.org/h=
tml/draft-ooamdt-rtgwg-ooam-requirement-00">
Overlay OAM Requirements</a> draft and shared his comments under RB&gt; tag=
. The attached copy has my responses in under GIM&gt; tag as well. We invit=
e members of BIER, NVO3, SCC and RTG WGs to join in the discussion. Appreci=
ate you review, comments on OOAM Requirements
 draft and OAM for Overlay Networks: Gap Analysis.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Regards,<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Greg<o:p></o:p>=
</p>
</div>
</div>
</div>
</span></div>
</div>
</span></div>
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</span>
</body>
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--_000_D3A0A20568FC7sadikshiciscocom_--


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From: "Fred Baker (fred)" <fred@cisco.com>
To: "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: Fwd: New Version Notification for draft-bowbakova-rtgwg-enterprise-pa-multihoming-00.txt
Thread-Topic: New Version Notification for draft-bowbakova-rtgwg-enterprise-pa-multihoming-00.txt
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Date: Wed, 6 Jul 2016 16:34:58 +0000
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At IETF 94, v6ops advised the routing ADs and Routing Working Group that =
PA multihoming would not work without a source/destination routing =
solution. This draft was developed in response.

> Begin forwarded message:
>=20
> From: <internet-drafts@ietf.org>
> Subject: New Version Notification for =
draft-bowbakova-rtgwg-enterprise-pa-multihoming-00.txt
> Date: July 5, 2016 at 5:58:25 PM PDT
> To: Chris Bowers <cbowers@juniper.net>, Jen Linkova =
<furry@google.com>, "Fred Baker" <fred@cisco.com>, "J. Linkova" =
<furry@google.com>
>=20
>=20
> A new version of I-D, =
draft-bowbakova-rtgwg-enterprise-pa-multihoming-00.txt
> has been successfully submitted by Fred Baker and posted to the
> IETF repository.
>=20
> Name:		draft-bowbakova-rtgwg-enterprise-pa-multihoming
> Revision:	00
> Title:		Enterprise Multihoming using Provider-Assigned =
Addresses without Network Prefix Translation: Requirements and Solution
> Document date:	2016-07-05
> Group:		Individual Submission
> Pages:		44
> URL:            =
https://www.ietf.org/internet-drafts/draft-bowbakova-rtgwg-enterprise-pa-m=
ultihoming-00.txt
> Status:         =
https://datatracker.ietf.org/doc/draft-bowbakova-rtgwg-enterprise-pa-multi=
homing/
> Htmlized:       =
https://tools.ietf.org/html/draft-bowbakova-rtgwg-enterprise-pa-multihomin=
g-00
>=20
>=20
> Abstract:
> Connecting an enterprise site to multiple ISPs using provider-
> assigned addresses is difficult without the use of some form of
> Network Address Translation (NAT).  Much has been written on this
> topic over the last 10 to 15 years, but it still remains a problem
> without a clearly defined or widely implemented solution.  Any
> multihoming solution without NAT requires hosts at the site to have
> addresses from each ISP and to select the egress ISP by selecting a
> source address for outgoing packets.  It also requires routers at the
> site to take into account those source addresses when forwarding
> packets out towards the ISPs.
>=20
> This document attempts to define a complete solution to this problem.
> It covers the behavior of routers to forward traffic taking into
> account source address, and it covers the behavior of host to select
> appropriate source addresses.  It also covers any possible role that
> routers might play in providing information to hosts to help them
> select appropriate source addresses.  In the process of exploring
> potential solutions, this documents also makes explicit requirements
> for how the solution would be expected to behave from the perspective
> of an enterprise site network administrator .
>=20
>=20
>=20
>=20
> Please note that it may take a couple of minutes from the time of =
submission
> until the htmlized version and diff are available at tools.ietf.org.
>=20
> The IETF Secretariat
>=20


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From nobody Fri Jul  8 14:46:08 2016
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From: Uma Chunduri <uma.chunduri@ericsson.com>
To: "rtgwg-chairs@ietf.org" <rtgwg-chairs@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: FW: New Version Notification for draft-psarkar-rtgwg-multihomed-prefix-lfa-04.txt
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Subject: gRPC drafts
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Dear RTGWG,

=20

May you be interested in gRPC work =E2=80=93 please pay attention.

=20

Thanks to our Google friends - few days ago 2 drafts have been published:

draft-talwar-rtgwg-grpc-use-cases

draft-kumar-rtgwg-grpc-protocol

=20

There will be presentation on the drafts in Berlin.

=20

Thanks,

Jeff

=20


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F72"><div class=3DWordSection1><p class=3DMsoNormal><span style=3D'font-size:11.0p=
t'>Dear RTGWG,<o:p></o:p></span></p><p class=3DMsoNormal><span style=3D'font-siz=
e:11.0pt'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span style=3D'font-s=
ize:11.0pt'>May you be interested in gRPC work &#8211; please pay attention.=
<o:p></o:p></span></p><p class=3DMsoNormal><span style=3D'font-size:11.0pt'><o:p=
>&nbsp;</o:p></span></p><p class=3DMsoNormal><span style=3D'font-size:11.0pt'>Th=
anks to our Google friends - few days ago 2 drafts have been published:<o:p>=
</o:p></span></p><p class=3DMsoNormal><span style=3D'font-size:11.0pt'>draft-tal=
war-rtgwg-grpc-use-cases<o:p></o:p></span></p><p class=3DMsoNormal><span style=
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class=3DMsoNormal><span style=3D'font-size:11.0pt'><o:p>&nbsp;</o:p></span></p><=
p class=3DMsoNormal><span style=3D'font-size:11.0pt'>There will be presentation =
on the drafts in Berlin.<o:p></o:p></span></p><p class=3DMsoNormal><span style=
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Subject: IETF96 agenda has been published
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Dear RTGWG,

 

IETF96 preliminary agenda has been published at https://www.ietf.org/proceedings/96/agenda/agenda-96-rtgwg

Please contact the chairs ASAP if you want a slot, please check whether the slot you might have requested is there and time is right.

 

Thanks,

Jeff and Chris


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Subject: RTGWG IETF96 agenda has been published
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Dear RTGWG,

 

RTGWG IETF96 preliminary agenda has been published at https://www.ietf.org/proceedings/96/agenda/agenda-96-rtgwg

Please contact the chairs ASAP if you want a slot, please check whether the slot you might have requested is there and time is right.

 

Thanks,

Jeff and Chris


--B_3551089182_192661626
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org/proceedings/96/agenda/agenda-96-rtgwg</a></span><o:p></o:p></p><p class=3D=
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Subject: RFC 7916 on Operational Management of Loop-Free Alternates
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A new Request for Comments is now available in online RFC libraries.

        
        RFC 7916

        Title:      Operational Management of Loop-Free Alternates 
        Author:     S. Litkowski, Ed.,
                    B. Decraene, C. Filsfils,
                    K. Raza, M. Horneffer,
                    P. Sarkar
        Status:     Standards Track
        Stream:     IETF
        Date:       July 2016
        Mailbox:    stephane.litkowski@orange.com, 
                    bruno.decraene@orange.com, 
                    cfilsfil@cisco.com, 
                    skraza@cisco.com, 
                    Martin.Horneffer@telekom.de,
                    pushpasis.ietf@gmail.com
        Pages:      31
        Characters: 62072
        Updates/Obsoletes/SeeAlso:   None

        I-D Tag:    draft-ietf-rtgwg-lfa-manageability-11.txt

        URL:        https://www.rfc-editor.org/info/rfc7916

        DOI:        http://dx.doi.org/10.17487/RFC7916

Loop-Free Alternates (LFAs), as defined in RFC 5286, constitute an IP
Fast Reroute (IP FRR) mechanism enabling traffic protection for IP
traffic (and, by extension, MPLS LDP traffic).  Following early
deployment experiences, this document provides operational feedback
on LFAs, highlights some limitations, and proposes a set of
refinements to address those limitations.  It also proposes required
management specifications.

This proposal is also applicable to remote-LFA solutions.

This document is a product of the Routing Area Working Group Working Group of the IETF.

This is now a Proposed Standard.

STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements.  Please refer to the current edition of the Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the 
standardization state and status of this protocol.  Distribution of this 
memo is unlimited.

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The RFC Editor Team
Association Management Solutions, LLC



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Date: Mon, 11 Jul 2016 22:18:18 -0700
Subject: Request for WG adoption of  draft-psarkar-rtgwg-multihomed-prefix-lfa-04
From: Jeff Tantsura <jefftant.ietf@gmail.com>
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Dear RTGWG,

 

The authors have requested the RTGWG to adopt draft-psarkar-rtgwg-multihomed-prefix-lfa-04 as the working group document.

 

This draft has been present multiple times and no further comments are to be addressed at this moment. 

Please indicate support or no-support by July 30,, 2016.

 

If you are listed as a document author or contributor please respond to this email stating of whether or not you are aware of any relevant IPR. The response needs to be sent to the RTGWG mailing list. The document will not advance to the next stage until a response has been received from each author and each individual that has contributed to the document.

 

Thanks,

Jeff & Chris


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e:11.0pt'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span style=3D'font-s=
ize:11.0pt'>The authors have requested the RTGWG to adopt draft-psarkar-rtgw=
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n></p><p class=3DMsoNormal><span style=3D'font-size:11.0pt'>If you are listed as=
 a document author or contributor please respond to this email stating of wh=
ether or not you are aware of any relevant IPR. The response needs to be sen=
t to the RTGWG mailing list. The document will not advance to the next stage=
 until a response has been received from each author and each individual tha=
t has contributed to the document.<o:p></o:p></span></p><p class=3DMsoNormal><=
span style=3D'font-size:11.0pt'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal=
><span style=3D'font-size:11.0pt'>Thanks,<o:p></o:p></span></p><p class=3DMsoNor=
mal><span style=3D'font-size:11.0pt'>Jeff &amp; Chris<o:p></o:p></span></p></d=
iv></body></html>

--B_3551120299_1127706893--



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Date: Tue, 12 Jul 2016 10:51:27 +0530
Message-ID: <CAEFuwkiq7q1pPVEqAZkS0CSGUU-jKPy=qzUixRa-SdvX8XQZHQ@mail.gmail.com>
Subject: Re: Request for WG adoption of draft-psarkar-rtgwg-multihomed-prefix-lfa-04
From: Pushpasis Sarkar <pushpasis.ietf@gmail.com>
To: Jeff Tantsura <jefftant.ietf@gmail.com>
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--94eb2c05b1d2d95783053769707f
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Support as author. This draft serves a great guideline for any developer
implementing LFA protection for multi-homed prefixes.

Best Regards,
Pushpasis

On Tuesday, 12 July 2016, Jeff Tantsura <jefftant.ietf@gmail.com> wrote:

> Dear RTGWG,
>
>
>
> The authors have requested the RTGWG to adopt
> draft-psarkar-rtgwg-multihomed-prefix-lfa-04 as the working group document.
>
>
>
> This draft has been present multiple times and no further comments are to
> be addressed at this moment.
>
> Please indicate support or no-support by July 30,, 2016.
>
>
>
> If you are listed as a document author or contributor please respond to
> this email stating of whether or not you are aware of any relevant IPR. The
> response needs to be sent to the RTGWG mailing list. The document will not
> advance to the next stage until a response has been received from each
> author and each individual that has contributed to the document.
>
>
>
> Thanks,
>
> Jeff & Chris
>

--94eb2c05b1d2d95783053769707f
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

Support as author. This draft serves a great guideline for any developer im=
plementing LFA protection for=C2=A0multi-homed prefixes.<div><br></div><div=
>Best=C2=A0<span></span>Regards,</div><div>Pushpasis</div><div><br>On Tuesd=
ay, 12 July 2016, Jeff Tantsura &lt;<a href=3D"mailto:jefftant.ietf@gmail.c=
om">jefftant.ietf@gmail.com</a>&gt; wrote:<br><blockquote class=3D"gmail_qu=
ote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex=
"><div bgcolor=3D"white" lang=3D"EN-US" link=3D"#0563C1" vlink=3D"#954F72">=
<div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">Dear RTGWG,<u>=
</u><u></u></span></p><p class=3D"MsoNormal"><span style=3D"font-size:11.0p=
t"><u></u>=C2=A0<u></u></span></p><p class=3D"MsoNormal"><span style=3D"fon=
t-size:11.0pt">The authors have requested the RTGWG to adopt draft-psarkar-=
rtgwg-multihomed-prefix-lfa-04 as the working group document.<u></u><u></u>=
</span></p><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><u></u>=
=C2=A0<u></u></span></p><p class=3D"MsoNormal"><span style=3D"font-size:11.=
0pt">This draft has been present multiple times and no further comments are=
 to be addressed at this moment. <u></u><u></u></span></p><p class=3D"MsoNo=
rmal"><span style=3D"font-size:11.0pt">Please indicate support or no-suppor=
t by July 30,, 2016.<u></u><u></u></span></p><p class=3D"MsoNormal"><span s=
tyle=3D"font-size:11.0pt"><u></u>=C2=A0<u></u></span></p><p class=3D"MsoNor=
mal"><span style=3D"font-size:11.0pt">If you are listed as a document autho=
r or contributor please respond to this email stating of whether or not you=
 are aware of any relevant IPR. The response needs to be sent to the RTGWG =
mailing list. The document will not advance to the next stage until a respo=
nse has been received from each author and each individual that has contrib=
uted to the document.<u></u><u></u></span></p><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt"><u></u>=C2=A0<u></u></span></p><p class=3D"MsoNo=
rmal"><span style=3D"font-size:11.0pt">Thanks,<u></u><u></u></span></p><p c=
lass=3D"MsoNormal"><span style=3D"font-size:11.0pt">Jeff &amp; Chris<u></u>=
<u></u></span></p></div></div>
</blockquote></div>

--94eb2c05b1d2d95783053769707f--


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Subject: Re: Request for WG adoption of draft-psarkar-rtgwg-multihomed-prefix-lfa-04
To: Jeff Tantsura <jefftant.ietf@gmail.com>
References: <F17553F7-A619-439B-A3A5-95E034626C59@gmail.com> <CAEFuwkiq7q1pPVEqAZkS0CSGUU-jKPy=qzUixRa-SdvX8XQZHQ@mail.gmail.com>
From: Pushpasis Sarkar <pushpasis.ietf@gmail.com>
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Date: Tue, 12 Jul 2016 10:59:32 +0530
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This is a multi-part message in MIME format.
--------------050902060503030701060001
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Hi Jeff,

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

Thanks and Regards,
-Pushpasis

On Tuesday 12 July 2016 10:51 AM, Pushpasis Sarkar wrote:
> Support as author. This draft serves a great guideline for any 
> developer implementing LFA protection for multi-homed prefixes.
>
> Best Regards,
> Pushpasis
>
> On Tuesday, 12 July 2016, Jeff Tantsura <jefftant.ietf@gmail.com 
> <mailto:jefftant.ietf@gmail.com>> wrote:
>
>     Dear RTGWG,
>
>     The authors have requested the RTGWG to adopt
>     draft-psarkar-rtgwg-multihomed-prefix-lfa-04 as the working group
>     document.
>
>     This draft has been present multiple times and no further comments
>     are to be addressed at this moment.
>
>     Please indicate support or no-support by July 30,, 2016.
>
>     If you are listed as a document author or contributor please
>     respond to this email stating of whether or not you are aware of
>     any relevant IPR. The response needs to be sent to the RTGWG
>     mailing list. The document will not advance to the next stage
>     until a response has been received from each author and each
>     individual that has contributed to the document.
>
>     Thanks,
>
>     Jeff & Chris
>


--------------050902060503030701060001
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: 8bit

<html>
  <head>
    <meta content="text/html; charset=utf-8" http-equiv="Content-Type">
  </head>
  <body text="#000000" bgcolor="#FFFFFF">
    Hi Jeff,<br>
    <br>
    Also I am not aware of any IPR other than the ones already
    disclosed.<br>
    <br>
    Thanks and Regards,<br>
    -Pushpasis<br>
    <br>
    <div class="moz-cite-prefix">On Tuesday 12 July 2016 10:51 AM,
      Pushpasis Sarkar wrote:<br>
    </div>
    <blockquote
cite="mid:CAEFuwkiq7q1pPVEqAZkS0CSGUU-jKPy=qzUixRa-SdvX8XQZHQ@mail.gmail.com"
      type="cite">Support as author. This draft serves a great guideline
      for any developer implementing LFA protection forÂ multi-homed
      prefixes.
      <div><br>
      </div>
      <div>BestÂ <span></span>Regards,</div>
      <div>Pushpasis</div>
      <div><br>
        On Tuesday, 12 July 2016, Jeff Tantsura &lt;<a
          moz-do-not-send="true" href="mailto:jefftant.ietf@gmail.com"><a class="moz-txt-link-abbreviated" href="mailto:jefftant.ietf@gmail.com">jefftant.ietf@gmail.com</a></a>&gt;
        wrote:<br>
        <blockquote class="gmail_quote" style="margin:0 0 0
          .8ex;border-left:1px #ccc solid;padding-left:1ex">
          <div bgcolor="white" link="#0563C1" vlink="#954F72"
            lang="EN-US">
            <div>
              <p class="MsoNormal"><span style="font-size:11.0pt">Dear
                  RTGWG,</span></p>
              <p class="MsoNormal"><span style="font-size:11.0pt">Â </span></p>
              <p class="MsoNormal"><span style="font-size:11.0pt">The
                  authors have requested the RTGWG to adopt
                  draft-psarkar-rtgwg-multihomed-prefix-lfa-04 as the
                  working group document.</span></p>
              <p class="MsoNormal"><span style="font-size:11.0pt">Â </span></p>
              <p class="MsoNormal"><span style="font-size:11.0pt">This
                  draft has been present multiple times and no further
                  comments are to be addressed at this moment. </span></p>
              <p class="MsoNormal"><span style="font-size:11.0pt">Please
                  indicate support or no-support by July 30,, 2016.</span></p>
              <p class="MsoNormal"><span style="font-size:11.0pt">Â </span></p>
              <p class="MsoNormal"><span style="font-size:11.0pt">If you
                  are listed as a document author or contributor please
                  respond to this email stating of whether or not you
                  are aware of any relevant IPR. The response needs to
                  be sent to the RTGWG mailing list. The document will
                  not advance to the next stage until a response has
                  been received from each author and each individual
                  that has contributed to the document.</span></p>
              <p class="MsoNormal"><span style="font-size:11.0pt">Â </span></p>
              <p class="MsoNormal"><span style="font-size:11.0pt">Thanks,</span></p>
              <p class="MsoNormal"><span style="font-size:11.0pt">Jeff
                  &amp; Chris</span></p>
            </div>
          </div>
        </blockquote>
      </div>
    </blockquote>
    <br>
  </body>
</html>

--------------050902060503030701060001--


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From: <bruno.decraene@orange.com>
To: Jeff Tantsura <jefftant.ietf@gmail.com>, rtgwg-chairs <rtgwg-chairs@ietf.org>
Subject: RE: Request for WG adoption of draft-psarkar-rtgwg-multihomed-prefix-lfa-04
Thread-Topic: Request for WG adoption of draft-psarkar-rtgwg-multihomed-prefix-lfa-04
Thread-Index: AQHR2/zQaUvqXf1NPkquyeG04APOR6AUY2sg
Date: Tue, 12 Jul 2016 07:21:10 +0000
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Subject: SPRING WGLC for draft-ietf-spring-resiliency-use-cases
Date: Tue, 12 Jul 2016 10:44:16 -0400
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Dear SPRING WG (and I've taken the liberty of cc'ing RTGWG),

The authors have indicated that draft-ietf-spring-resiliency-use-cases =
is ready for WGLC. Please send your comments to spring@ietf.org. We will =
plan to end the WGLC on July 31. I notice that there is an outstanding =
question from Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>, =
sent to the list on July 10 -- authors, please consider his note to be =
part of the WGLC and respond accordingly.

Authors: In parallel with the WGLC, please respond to this message =
(making sure you cc spring@ietf.org) and indicate if you are aware of =
any relevant IPR. Please do this even if it has been previously =
disclosed. Thanks.

Thanks to St=C3=A9phane Litkowski for agreeing to be document shepherd.=20=


Regards,

--John=


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From: <bruno.decraene@orange.com>
To: "John G. Scudder" <jgs@juniper.net>
Subject: RE: SPRING WGLC for draft-ietf-spring-resiliency-use-cases
Thread-Topic: SPRING WGLC for draft-ietf-spring-resiliency-use-cases
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Date: Tue, 12 Jul 2016 15:22:56 +0000
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From: Uma Chunduri <uma.chunduri@ericsson.com>
To: Jeff Tantsura <jefftant.ietf@gmail.com>, RTGWG <rtgwg@ietf.org>
Subject: RE: Request for WG adoption of draft-psarkar-rtgwg-multihomed-prefix-lfa-04
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Subject: Re: RTGWG IETF96 agenda has been published
From: Jeff Tantsura <jefftant.ietf@gmail.com>
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Dear RTGWG,

 

Due to conflict with netconf there have been significant changes to the agenda, please take a look.

 

Thanks,

Jeff and Chris

From: Jeff Tantsura <jefftant.ietf@gmail.com>
Date: Monday, July 11, 2016 at 13:39
To: RTGWG <rtgwg@ietf.org>
Cc: rtgwg-chairs <rtgwg-chairs@ietf.org>
Subject: RTGWG IETF96 agenda has been published

 

Dear RTGWG,

 

RTGWG IETF96 preliminary agenda has been published at https://www.ietf.org/proceedings/96/agenda/agenda-96-rtgwg

Please contact the chairs ASAP if you want a slot, please check whether the slot you might have requested is there and time is right.

 

Thanks,

Jeff and Chris


--B_3551595599_1648199219
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F72"><div class=3DWordSection1><p class=3DMsoNormal><span style=3D'font-size:11.0p=
t'>Dear RTGWG,<o:p></o:p></span></p><p class=3DMsoNormal><span style=3D'font-siz=
e:11.0pt'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span style=3D'font-s=
ize:11.0pt'>Due to conflict with netconf there have been significant changes=
 to the agenda, please take a look.<o:p></o:p></span></p><div><p class=3DMsoNo=
rmal><span style=3D'font-size:10.5pt;color:black'><o:p>&nbsp;</o:p></span></p>=
<p class=3DMsoNormal><span style=3D'font-size:10.5pt;color:black'>Thanks,<o:p></=
o:p></span></p><p class=3DMsoNormal><span style=3D'font-size:10.5pt;color:black'=
>Jeff and Chris<o:p></o:p></span></p></div><div style=3D'border:none;border-to=
p:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DMsoNormal><b><span=
 style=3D'color:black'>From: </span></b><span style=3D'color:black'>Jeff Tantsur=
a &lt;jefftant.ietf@gmail.com&gt;<br><b>Date: </b>Monday, July 11, 2016 at 1=
3:39<br><b>To: </b>RTGWG &lt;rtgwg@ietf.org&gt;<br><b>Cc: </b>rtgwg-chairs &=
lt;rtgwg-chairs@ietf.org&gt;<br><b>Subject: </b>RTGWG IETF96 agenda has been=
 published<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span style=3D'f=
ont-family:"Times New Roman"'><o:p>&nbsp;</o:p></span></p></div><div><div><p=
 class=3DMsoNormal><span style=3D'font-size:11.0pt'>Dear RTGWG,</span><o:p></o:p=
></p><p class=3DMsoNormal><span style=3D'font-size:11.0pt'>&nbsp;</span><o:p></o=
:p></p><p class=3DMsoNormal><span style=3D'font-size:11.0pt'>RTGWG IETF96 prelim=
inary agenda has been published at <a href=3D"https://www.ietf.org/proceedings=
/96/agenda/agenda-96-rtgwg">https://www.ietf.org/proceedings/96/agenda/agend=
a-96-rtgwg</a></span><o:p></o:p></p><p class=3DMsoNormal><span style=3D'font-siz=
e:11.0pt'>Please contact the chairs ASAP if you want a slot, please check wh=
ether the slot you might have requested is there and time is right.</span><o=
:p></o:p></p><p class=3DMsoNormal><span style=3D'font-size:11.0pt'>&nbsp;</span>=
<o:p></o:p></p><p class=3DMsoNormal><span style=3D'font-size:11.0pt'>Thanks,</sp=
an><o:p></o:p></p><p class=3DMsoNormal><span style=3D'font-size:11.0pt'>Jeff and=
 Chris</span><o:p></o:p></p></div></div></div></body></html>

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The RTGWG WG has placed draft-psarkar-rtgwg-multihomed-prefix-lfa in
state 
Call For Adoption By WG Issued (entered by Jeff Tantsura)

The document is available at
https://datatracker.ietf.org/doc/draft-psarkar-rtgwg-multihomed-prefix-lfa/


From nobody Mon Jul 18 08:38:24 2016
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From: Chris Bowers <cbowers@juniper.net>
To: Jeff Tantsura <jefftant.ietf@gmail.com>, RTGWG <rtgwg@ietf.org>
Subject: RE: Request for WG adoption of draft-psarkar-rtgwg-multihomed-prefix-lfa-04
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Date: Mon, 18 Jul 2016 08:46:29 -0700
Subject: Re: Request for WG adoption of draft-psarkar-rtgwg-multihomed-prefix-lfa-04
From: Jeff Tantsura <jefftant.ietf@gmail.com>
To: RTGWG <rtgwg@ietf.org>
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Thread-Topic: Request for WG adoption of draft-psarkar-rtgwg-multihomed-prefix-lfa-04
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/Chair hat off

 

I am not aware of relevant IPR other than the two disclosures listed at:

https://datatracker.ietf.org/ipr/search/?submit=draft&id=draft-psarkar-rtgwg-multihomed-prefix-lfa

 

 

Cheers,

Jeff

From: Jeff Tantsura [mailto:jefftant.ietf@gmail.com] 
Sent: Tuesday, July 12, 2016 7:18 AM
To: RTGWG <rtgwg@ietf.org>
Cc: rtgwg-chairs <rtgwg-chairs@ietf.org>; draft-psarkar-rtgwg-multihomed-prefix-lfa@ietf.org
Subject: Request for WG adoption of draft-psarkar-rtgwg-multihomed-prefix-lfa-04

 

Dear RTGWG,

 

The authors have requested the RTGWG to adopt draft-psarkar-rtgwg-multihomed-prefix-lfa-04 as the working group document.

 

This draft has been present multiple times and no further comments are to be addressed at this moment. 

Please indicate support or no-support by July 30,, 2016.

 

If you are listed as a document author or contributor please respond to this email stating of whether or not you are aware of any relevant IPR. The response needs to be sent to the RTGWG mailing list. The document will not advance to the next stage until a response has been received from each author and each individual that has contributed to the document.

 

Thanks,

Jeff & Chris


--B_3551676390_2141643246
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s-microsoft-com:office:word" xmlns:m=3D"http://schemas.microsoft.com/office/20=
04/12/omml" xmlns=3D"http://www.w3.org/TR/REC-html40"><head><meta name=3DTitle c=
ontent=3D""><meta name=3DKeywords content=3D""><meta http-equiv=3DContent-Type conte=
nt=3D"text/html; charset=3Dutf-8"><meta name=3DGenerator content=3D"Microsoft Word 1=
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div.WordSection1
	{page:WordSection1;}
--></style></head><body bgcolor=3Dwhite lang=3DEN-US link=3D"#0563C1" vlink=3D"#954=
F72"><div class=3DWordSection1><p class=3DMsoNormal><span style=3D'font-size:11.0p=
t'>/Chair hat off<o:p></o:p></span></p><p class=3DMsoNormal><span style=3D'font-=
size:11.0pt'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span style=3D'fon=
t-size:11.0pt'>I am not aware of relevant IPR other than the two disclosures=
 listed at:</span><o:p></o:p></p><p class=3DMsoNormal><span style=3D'font-size:1=
1.0pt'><a href=3D"https://datatracker.ietf.org/ipr/search/?submit=3Ddraft&amp;id=
=3Ddraft-psarkar-rtgwg-multihomed-prefix-lfa">https://datatracker.ietf.org/ipr=
/search/?submit=3Ddraft&amp;id=3Ddraft-psarkar-rtgwg-multihomed-prefix-lfa</a></=
span><o:p></o:p></p><p class=3DMsoNormal><span style=3D'font-size:11.0pt'><o:p>&=
nbsp;</o:p></span></p><div><p class=3DMsoNormal><span style=3D'font-size:10.5pt;=
color:black'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span style=3D'fon=
t-size:10.5pt;color:black'>Cheers,<o:p></o:p></span></p><p class=3DMsoNormal><=
span style=3D'font-size:10.5pt;color:black'>Jeff<o:p></o:p></span></p></div><d=
iv><div><div><div style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:=
3.0pt 0in 0in 0in'><p class=3DMsoNormal><b><span style=3D'font-size:11.0pt'>From=
:</span></b><span style=3D'font-size:11.0pt'> Jeff Tantsura [mailto:jefftant.i=
etf@gmail.com] <br><b>Sent:</b> Tuesday, July 12, 2016 7:18 AM<br><b>To:</b>=
 RTGWG &lt;rtgwg@ietf.org&gt;<br><b>Cc:</b> rtgwg-chairs &lt;rtgwg-chairs@ie=
tf.org&gt;; draft-psarkar-rtgwg-multihomed-prefix-lfa@ietf.org<br><b>Subject=
:</b> Request for WG adoption of draft-psarkar-rtgwg-multihomed-prefix-lfa-0=
4</span><o:p></o:p></p></div></div><p class=3DMsoNormal>&nbsp;<o:p></o:p></p><=
p class=3DMsoNormal><span style=3D'font-size:11.0pt'>Dear RTGWG,</span><o:p></o:=
p></p><p class=3DMsoNormal><span style=3D'font-size:11.0pt'>&nbsp;</span><o:p></=
o:p></p><p class=3DMsoNormal><span style=3D'font-size:11.0pt'>The authors have r=
equested the RTGWG to adopt draft-psarkar-rtgwg-multihomed-prefix-lfa-04 as =
the working group document.</span><o:p></o:p></p><p class=3DMsoNormal><span st=
yle=3D'font-size:11.0pt'>&nbsp;</span><o:p></o:p></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt'>This draft has been present multiple times and no f=
urther comments are to be addressed at this moment. </span><o:p></o:p></p><p=
 class=3DMsoNormal><span style=3D'font-size:11.0pt'>Please indicate support or n=
o-support by July 30,, 2016.</span><o:p></o:p></p><p class=3DMsoNormal><span s=
tyle=3D'font-size:11.0pt'>&nbsp;</span><o:p></o:p></p><p class=3DMsoNormal><span=
 style=3D'font-size:11.0pt'>If you are listed as a document author or contribu=
tor please respond to this email stating of whether or not you are aware of =
any relevant IPR. The response needs to be sent to the RTGWG mailing list. T=
he document will not advance to the next stage until a response has been rec=
eived from each author and each individual that has contributed to the docum=
ent.</span><o:p></o:p></p><p class=3DMsoNormal><span style=3D'font-size:11.0pt'>=
&nbsp;</span><o:p></o:p></p><p class=3DMsoNormal><span style=3D'font-size:11.0pt=
'>Thanks,</span><o:p></o:p></p><p class=3DMsoNormal><span style=3D'font-size:11.=
0pt'>Jeff &amp; Chris</span><o:p></o:p></p></div></div></div></body></html>

--B_3551676390_2141643246--



From nobody Mon Jul 18 14:26:05 2016
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From: internet-drafts@ietf.org
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Subject: I-D Action: draft-ietf-rtgwg-yang-rip-02.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 Routing Area Working Group of the IETF.

        Title           : A YANG Data Model for Routing Information Protocol (RIP)
        Authors         : Xufeng Liu
                          Prateek Sarda
                          Vikram Choudhary
	Filename        : draft-ietf-rtgwg-yang-rip-02.txt
	Pages           : 38
	Date            : 2016-07-18

Abstract:
   This document describes a data model for the Routing Information
   Protocol (RIP). Both RIP version 2 and RIPng are covered.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-rtgwg-yang-rip/

There's also a htmlized version available at:
https://tools.ietf.org/html/draft-ietf-rtgwg-yang-rip-02

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-rtgwg-yang-rip-02


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

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


From nobody Tue Jul 19 07:05:40 2016
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From: Stewart Bryant <stewart.bryant@gmail.com>
Subject: Microloop protection as discussed in today's meeting
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The RFC that had all of the generic methods that were known at the time 
of publication is RFC5715.

The two phase methods were in section 6.2 (near-side) and section 6.3 
(far-side). The first describing tunnelling the traffic towards the 
repair (and continue to use the repair), the second describing 
tunnelling traffic towards the destination. For the purposes of this 
discussion source routing of all flavours can be considered a type of 
tunnel.

If this approach is a new  genetric  two phase method, it would be 
useful to articulate it in general terms.

The type of topology that I was trying to explain in the meeting is as 
follows

A-B-C-D-E-F-H-I-J.....W
|                     |
|                     |
+------X-Y-Z----------+

All costs are 1 and Y has failed.

Traffic to Z can enter enywhere, and is protected by X.

When the network starts to converge ALL the routers A..J will need to 
update their fib to forward towards Z via W rather than towards X via A.

If they do this in a random order as would be the case without LF 
convergence then you may precipitate microlooping.

What you need to do is to force the packets toward either X or Z using a 
tunnel, or a source routed path, and as far as I can see you need to do 
that at every point of potential entry into the network, in the above 
case A..J, else you risk a microloop.

Now I suppose that if ALL packets were source routed, then you could 
consider that the network was constantly in the first phase, but I think 
that you would need to use strict source routing, rather than loose 
source routing else it reduces the the problem I describe above.


- Stewart


From nobody Tue Jul 19 08:12:30 2016
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From: Stewart Bryant <stewart.bryant@gmail.com>
Subject: Microloop protection as discussed in today's meeting
To: rtgwg@ietf.org
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Date: Tue, 19 Jul 2016 15:48:29 +0100
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Appologies if this is a duplicate.

The RFC that had all of the generic methods that were known at the time 
of publication is RFC5715.

The two phase methods were in section 6.2 (near-side) and section 6.3 
(far-side). The first describing tunnelling the traffic towards the 
repair (and continue to use the repair), the second describing 
tunnelling traffic towards the destination. For the purposes of this 
discussion source routing of all flavours can be considered a type of 
tunnel.

If this approach is a new  genetric  two phase method, it would be 
useful to articulate it in general terms.

The type of topology that I was trying to explain in the meeting is as 
follows

A-B-C-D-E-F-H-I-J.....W
|                     |
|                     |
+------X-Y-Z----------+

All costs are 1 and Y has failed.

Traffic to Z can enter enywhere, and is protected by X.

When the network starts to converge ALL the routers A..J will need to 
update their fib to forward towards Z via W rather than towards X via A.

If they do this in a random order as would be the case without LF 
convergence then you may precipitate microlooping.

What you need to do is to force the packets toward either X or Z using a 
tunnel, or a source routed path, and as far as I can see you need to do 
that at every point of potential entry into the network, in the above 
case A..J, else you risk a microloop.

Now I suppose that if ALL packets were source routed, then you could 
consider that the network was constantly in the first phase, but I think 
that you would need to use strict source routing, rather than loose 
source routing else it reduces the the problem I describe above.


- Stewart


From nobody Wed Jul 20 01:50:12 2016
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Date: Wed, 20 Jul 2016 10:50:01 +0200
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From: Juliusz Chroboczek <jch@pps.univ-paris-diderot.fr>
To: rtgwg@ietf.org
Subject: Making use of SADR at the higher layers
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I have been told that my comments after Jen's talk yesterday were not
clear to everyone, so please let me expand on them.

My summary of Jen's talk is:

    With the right network layer mechanisms, IPv6+SADR allows you to do
    everything you do with IPv4+NAT.

I fully agree with that statement (although not necessarily with the exact
details of the mechanisms).  However, I think a stronger statement stands:

  With the right network layer mechanisms, IPv6+SADR allows you to do
  everything you do with IPv4+NAT.  You can do even better if you
  additionally do some work at the higher layers.

A way to look at it is that SADR splits the multihoming problem into two
simpler problems: routing (done by the network) and selecting among the
available paths (done by the end hosts).  We've pretty much solved the
first problem, the second is an open research project.  Jen's approach
picks paths at the network layer, which is necessary for SADR-unaware
applications.  SADR-aware applications, however, can do their own picking,
which has the potential to improve the user experience.

I am fairly intimately familiar with two examples of such mechanisms that
have been fairly widely deployed: MP-TCP and the Vuze ML-DHT plugin for
BitTorrent.  I'll also say a few words about MP-Mosh, which was implemented
by my student Matthieu Boutier but not upstreamed yet.


1. MP-TCP

MP-TCP is an IETF standards track extension to TCP that aims to use all
available paths for data transfer; it can do both fallback and load-balancing.
Making good use of MP-TCP with IPv4+NAT is somewhat involved -- it requires
either using multiple interfaces on the host, or doing dirty hacks with
"virtual interfaces" and multiple IPv4 leases.  In an IPv6+SADR network,
MP-TCP works out of the box -- it probes all available source-dest pairs,
and performs fallback or load-balancing as necessary.

Our experiences with MP-TCP in an IPv6+SADR network are described in
Section VII.B of

  Matthieu Boutier and Juliusz Chroboczek.  Source-specific routing.  IFIP
  Networking 2015.
  https://arxiv.org/pdf/1403.0445.pdf

Don't bother reading, though -- we just say that it works out of the box,
way beter than we expected.


2. The Vuze BitTorrent ML-DHT plugin

Vuze is one of the major implementations of BitTorrent.  Vuze's ML-DHT
plugin implements "trackerless torrents" using a DHT.  Unlike the other
implementations of the BitTorrent DHT, ML-DHT runs an instance of the DHT
on every GUA assigned to the local host; the result is that, in an SADR
network, the BitTorrent traffic gets load-balanced across all available
paths.  This work was done by an individual who goes by the nickname
The8475, and as far as I know hasn't been written down anywhere.


3. MP-Mosh

Mosh is a remote shell implementation due to Keith Winstein (of congestion
control fame).  Unlike ssh, mosh doesn't transmit a command stream over
TCP, but instead uses a synchronisation mechanism that is layered directly
over UDP.  It has support for client-side roaming, but not server-side
roaming.

MP-Mosh is a modification to Mosh that uses all available paths
simultaneously, with the goal of allowing server-side roaming and
double-stack operation, while reducing latency.  In an IPv6+SADR network,
it will probe all available paths and send traffic over the one with the
lowest latency.

Our work with MP-Mosh hasn't been published yet, but you will find an
early draft on:

    https://arxiv.org/pdf/1502.02402.pdf


I can thing of other applications that will want to use upper-layer
mechanisms to optimise their traffic in IPv6+SADR networks.  The obvious
candidates are video streaming and video conferencing, and more generally
anything where increased throughput, reduced latency, higher reliability
are desired and you control both the client and the server.

-- Juliusz


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From: "Saumya Dikshit (sadikshi)" <sadikshi@cisco.com>
To: "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: FW: [nvo3] New Version Notification for draft-saum-nvo3-pmtud-over-vxlan-03.txt
Thread-Topic: [nvo3] New Version Notification for draft-saum-nvo3-pmtud-over-vxlan-03.txt
Thread-Index: AQHRyL7kOgFcU4teX0Kg3UX2hzwev5/unWgAgDMP0gA=
Date: Wed, 20 Jul 2016 08:57:05 +0000
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Hello All,

Circulating this draft in rtgwg for the review and adoption.
It has found it=B9s way as one of the gaps, as part of the gap analysis
"draft-ooamdt-rtgwg-oam-gap-analysis"
done by OOAM DT team in rtgwg.
I was also part of the nvo3 OAM DT team for the related discussions.

Thanks and Regards,
Saumya.

On 6/17/16, 11:11 PM, "nvo3 on behalf of Saumya Dikshit (sadikshi)"
<nvo3-bounces@ietf.org on behalf of sadikshi@cisco.com> wrote:

>
>A new version of I-D, draft-saum-nvo3-pmtud-over-vxlan-03.txt
>has been successfully submitted by Saumya Dikshit and posted to the
>IETF repository.
>
>Name:		draft-saum-nvo3-pmtud-over-vxlan
>Revision:	03
>Title:		PMTUD Over Vxlan
>Document date:	2016-06-17
>Group:		Individual Submission
>Pages:		27
>URL:           =20
>https://www.ietf.org/internet-drafts/draft-saum-nvo3-pmtud-over-vxlan-03.t
>x
>t
>Status:        =20
>https://datatracker.ietf.org/doc/draft-saum-nvo3-pmtud-over-vxlan/
>Htmlized:      =20
>https://tools.ietf.org/html/draft-saum-nvo3-pmtud-over-vxlan-03
>Diff:          =20
>https://www.ietf.org/rfcdiff?url2=3Ddraft-saum-nvo3-pmtud-over-vxlan-03
>
>Abstract:
>   Path MTU Discovery between hosts/VM/servers/end-points connected over
>   a Data-Center/Service-Provider Overlay Network, is still an
>   unattended problem.  It needs a converged solution to ensure optimal
>   usage of network and computational resources for all hooked end-point
>   devices.
>
>                 =20
>      =20
>
>
>Please note that it may take a couple of minutes from the time of
>submission
>until the htmlized version and diff are available at tools.ietf.org.
>
>The IETF Secretariat
>
>
>
>_______________________________________________
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Subject: Re: Microloop protection as discussed in today's meeting
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Stewart,

You are stating the most obvious:)
For a feature to work, e.g. encapsulating into an RSVP tunnel, the entry 
point of the packet must be able to support that feature. That is not a 
problem. That how the entire world works:)

SR-based ti-uloop avoidance is no different. So if a packet arrives at 
node "D" for example, then node "D" must be able to steer the packet 
such that it guarantees loop-freeness.
Once "D" source-routes the packet into the loop-free path towards the 
destination "Z" , downstream routers from "D" towards "Z" need NOT have 
the ability to do uloop avoidance or even know that packets was 
source-routed by node "D"

As for the need for using "strict" vs "loose" source routing, that is 
topology dependent. The same applies for ti-lfa, rLFA, or even directly 
connected LFA.

One last thing, if you think that source routing can reduced to a 
"tunnel" we might as well shutdown SPRING WG:)

Ahmed




On 7/19/2016 7:48 AM, Stewart Bryant wrote:
> Appologies if this is a duplicate.
>
> The RFC that had all of the generic methods that were known at the 
> time of publication is RFC5715.
>
> The two phase methods were in section 6.2 (near-side) and section 6.3 
> (far-side). The first describing tunnelling the traffic towards the 
> repair (and continue to use the repair), the second describing 
> tunnelling traffic towards the destination. For the purposes of this 
> discussion source routing of all flavours can be considered a type of 
> tunnel.
>
> If this approach is a new  genetric  two phase method, it would be 
> useful to articulate it in general terms.
>
> The type of topology that I was trying to explain in the meeting is as 
> follows
>
> A-B-C-D-E-F-H-I-J.....W
> |                     |
> |                     |
> +------X-Y-Z----------+
>
> All costs are 1 and Y has failed.
>
> Traffic to Z can enter enywhere, and is protected by X.
>
> When the network starts to converge ALL the routers A..J will need to 
> update their fib to forward towards Z via W rather than towards X via A.
>
> If they do this in a random order as would be the case without LF 
> convergence then you may precipitate microlooping.
>
> What you need to do is to force the packets toward either X or Z using 
> a tunnel, or a source routed path, and as far as I can see you need to 
> do that at every point of potential entry into the network, in the 
> above case A..J, else you risk a microloop.
>
> Now I suppose that if ALL packets were source routed, then you could 
> consider that the network was constantly in the first phase, but I 
> think that you would need to use strict source routing, rather than 
> loose source routing else it reduces the the problem I describe above.
>
>
> - Stewart
>
> _______________________________________________
> rtgwg mailing list
> rtgwg@ietf.org
> https://www.ietf.org/mailman/listinfo/rtgwg


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Subject: Re: Microloop protection as discussed in today's meeting
From: Stewart Bryant <stewart.bryant@gmail.com>
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To: "Ahmed Bashandy (bashandy)" <bashandy@cisco.com>
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> On 20 Jul 2016, at 10:04, Ahmed Bashandy (bashandy) <bashandy@cisco.com> w=
rote:
>=20
> Stewart,
>=20
> You are stating the most obvious:)
> For a feature to work, e.g. encapsulating into an RSVP tunnel, the entry p=
oint of the packet must be able to support that feature. That is not a probl=
em. That how the entire world works:)

So are you saying that your scheme only works in an rsvp only network, or in=
 an SR only network. If so that constraint was not clear to me.

If you are saying that this works in an ordinary hop by hop network, then it=
 needs to be made much clear to the WG that EVERY ingress router needs to ap=
ply the loop avoidance two phase strategy.

The diagram and presentation you used yesterday used too simple a topology t=
o make that clear.

>=20
> SR-based ti-uloop avoidance is no different. So if a packet arrives at nod=
e "D" for example, then node "D" must be able to steer the packet such that i=
t guarantees loop-freeness.
> Once "D" source-routes the packet into the loop-free path towards the dest=
ination "Z" , downstream routers from "D" towards "Z" need NOT have the abil=
ity to do uloop avoidance or even know that packets was source-routed by nod=
e "D"


>=20
> As for the need for using "strict" vs "loose" source routing, that is topo=
logy dependent. The same applies for ti-lfa, rLFA, or even directly connecte=
d LFA.
>=20



> One last thing, if you think that source routing can reduced to a "tunnel"=
 we might as well shutdown SPRING WG:)
>=20

SR in an mpls network can be viewed as a set of concatenated tunnels. The co=
mplexity is all in the naming of the tunnel end points and the control plane=
.

Stewart


> Ahmed
>=20
>=20
>=20
>=20
>> On 7/19/2016 7:48 AM, Stewart Bryant wrote:
>> Appologies if this is a duplicate.
>>=20
>> The RFC that had all of the generic methods that were known at the time o=
f publication is RFC5715.
>>=20
>> The two phase methods were in section 6.2 (near-side) and section 6.3 (fa=
r-side). The first describing tunnelling the traffic towards the repair (and=
 continue to use the repair), the second describing tunnelling traffic towar=
ds the destination. For the purposes of this discussion source routing of al=
l flavours can be considered a type of tunnel.
>>=20
>> If this approach is a new  genetric  two phase method, it would be useful=
 to articulate it in general terms.
>>=20
>> The type of topology that I was trying to explain in the meeting is as fo=
llows
>>=20
>> A-B-C-D-E-F-H-I-J.....W
>> |                     |
>> |                     |
>> +------X-Y-Z----------+
>>=20
>> All costs are 1 and Y has failed.
>>=20
>> Traffic to Z can enter enywhere, and is protected by X.
>>=20
>> When the network starts to converge ALL the routers A..J will need to upd=
ate their fib to forward towards Z via W rather than towards X via A.
>>=20
>> If they do this in a random order as would be the case without LF converg=
ence then you may precipitate microlooping.
>>=20
>> What you need to do is to force the packets toward either X or Z using a t=
unnel, or a source routed path, and as far as I can see you need to do that a=
t every point of potential entry into the network, in the above case A..J, e=
lse you risk a microloop.
>>=20
>> Now I suppose that if ALL packets were source routed, then you could cons=
ider that the network was constantly in the first phase, but I think that yo=
u would need to use strict source routing, rather than loose source routing e=
lse it reduces the the problem I describe above.
>>=20
>>=20
>> - Stewart
>>=20
>> _______________________________________________
>> rtgwg mailing list
>> rtgwg@ietf.org
>> https://www.ietf.org/mailman/listinfo/rtgwg
>=20


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Subject: Re: [nvo3] [Bier] Comments to OOAM Requirements draft from Ron Bonica
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--_000_D3B540DB6B713sadikshiciscocom_
Content-Type: text/plain; charset="Windows-1252"
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Hi Greg, Authors of ooam-dt set of drafts

Other than current requirements, it will be great to explicitly support the=
 OAM PDU semantics.

  *   apply OAM function_set to group of VNI or band of VNI=92s and this in=
formation carried in same OAM PDU. Although the response can be discrete on=
 a per VNI basis based on how and where the response is triggered from. If =
It=92s proxy from remote NVE, then the response can be a replication to the=
 request. This is will reduce the number of probes which need to be send to=
 perform the OAM functions.
  *   It will be great to designate VNI=92s as L2 or L3 and apply function_=
Set to them. This is implicitly derived in data-path, but for OAM PDUs, it =
will help to make it explicit either via using some flags or some other sem=
antics. Hence we can carry bunch of L2 and L3 vnis with corresponding funct=
ion-set

In case these are valid requirements, which I feel they are. Can they find =
a place in existing document.
I can also come out with a peripheral draft defining these.

Thanks
Saumya.

From: nvo3 <nvo3-bounces@ietf.org<mailto:nvo3-bounces@ietf.org>> on behalf =
of sadikshi <sadikshi@cisco.com<mailto:sadikshi@cisco.com>>
Date: Monday, July 4, 2016 at 8:09 PM
To: "Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com<mailto:naikumar@=
cisco.com>>, Gregory Mirsky <gregory.mirsky@ericsson.com<mailto:gregory.mir=
sky@ericsson.com>>, "BIER (bier@ietf.org<mailto:bier@ietf.org>)" <bier@ietf=
.org<mailto:bier@ietf.org>>, "sfc@ietf.org<mailto:sfc@ietf.org>" <sfc@ietf.=
org<mailto:sfc@ietf.org>>, "nvo3@ietf.org<mailto:nvo3@ietf.org>" <nvo3@ietf=
.org<mailto:nvo3@ietf.org>>, "rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.=
org>" <rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>>, "rtgwg@ietf.org<=
mailto:rtgwg@ietf.org>" <rtgwg@ietf.org<mailto:rtgwg@ietf.org>>
Cc: "rbonica@juniper.net<mailto:rbonica@juniper.net>" <rbonica@juniper.net<=
mailto:rbonica@juniper.net>>
Subject: Re: [nvo3] [Bier] Comments to OOAM Requirements draft from Ron Bon=
ica

Hi Nagendra,

Thanks for the response. I missed this one in the below email:


>>>>> REQ#14: Overlay OAM MUST have the ability to discover and exercise
            equal cost multipath (ECMP) paths in its transport network.

This will require the underlay nodes/router/switches to support OAM semanti=
cs, which may not be possible
in case of brownfield deployments (deploying NVO tunnels over existing IP-c=
ore network).


Regards,
Saumya.


From: "Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com<mailto:naikuma=
r@cisco.com>>
Date: Monday, July 4, 2016 at 4:39 PM
To: sadikshi <sadikshi@cisco.com<mailto:sadikshi@cisco.com>>, Gregory Mirsk=
y <gregory.mirsky@ericsson.com<mailto:gregory.mirsky@ericsson.com>>, "BIER =
(bier@ietf.org<mailto:bier@ietf.org>)" <bier@ietf.org<mailto:bier@ietf.org>=
>, "sfc@ietf.org<mailto:sfc@ietf.org>" <sfc@ietf.org<mailto:sfc@ietf.org>>,=
 "nvo3@ietf.org<mailto:nvo3@ietf.org>" <nvo3@ietf.org<mailto:nvo3@ietf.org>=
>, "rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>" <rtg-ooam-dt@ietf.or=
g<mailto:rtg-ooam-dt@ietf.org>>, "rtgwg@ietf.org<mailto:rtgwg@ietf.org>" <r=
tgwg@ietf.org<mailto:rtgwg@ietf.org>>
Cc: "rbonica@juniper.net<mailto:rbonica@juniper.net>" <rbonica@juniper.net<=
mailto:rbonica@juniper.net>>
Subject: Re: [Bier] [nvo3] Comments to OOAM Requirements draft from Ron Bon=
ica

HI Saumya,

Please see inline..

Hi Greg,

I have following queries on  Overlay OAM Requirements<https://tools.ietf.or=
g/html/draft-ooamdt-rtgwg-ooam-requirement-00>:


>>>>> REQ#6:  Overlay OAM packets SHOULD be fate sharing with data traffic,
            i.e. in-band with the monitored traffic, i.e. follow exactly
            the same path as data plane traffic, in forward direction,
            i.e. from ingress toward egress end point(s) of the OAM test
            session.

=93Exactly same path=94, should be made explicit if it=92s referring to the=
 underlay transport path.

<Nagendra> Yes, that is the intention. We will clarify it.

"OAM packets SHOULD be fate sharing with data traffic=94 will not apply to =
"REQ#3:  centralized controller=94.
I think =93SHOULD=94 should be treated as a =93MUST=94 if the reference is =
within the document :)



>>>>> REQ#11: Overlay OAM MUST support fault localization of Loss of
            Continuity check.

Does the =93localization=94 maps to overlay node/link context ? Can we have=
 a =93MAY=94 requirement for mapping
it to underlay. Since in datacenter, with more of east-west traffic, there =
might be deployment requirement
to narrow down to underlay for a speedier fault management.

<Nagendra> MAY statement sounds reasonable.

REQ#22 =97 REQ#25 refer to =93per-segment=94.
A =93segment=94 maps to a NVO-tunnel?

<Nagendra> Yes, a segment referes to NVO tunnel between NVEs. Multiple such=
 segments may comprise an end-to-end tunnel.

 Shouldn=92t there be on a  per-VNI basis as well.

<Nagendra>I think  the granularity should definitely at per-VNI level.


>>>>> REQ#7:  Overlay OAM MUST support bi-directional OAM methods.  Such
            OAM methods MAY combine in-band monitoring or measurement in
            forward direction and out-of-band notification in the
            reverse direction, i.e. from egress to ingress end point of
            the OAM test session.

In case of optical deployments like, fiber management (both request and res=
ponse) can be out-of-band, hence may
need a mention here.
<Nagendra> I see. We will check this.

Thanks for your comments.

Regards,
Nagendra


Thanks
Saumya

From: nvo3 <nvo3-bounces@ietf.org<mailto:nvo3-bounces@ietf.org>> on behalf =
of Gregory Mirsky <gregory.mirsky@ericsson.com<mailto:gregory.mirsky@ericss=
on.com>>
Date: Tuesday, April 5, 2016 at 1:39 AM
To: "BIER (bier@ietf.org<mailto:bier@ietf.org>)" <bier@ietf.org<mailto:bier=
@ietf.org>>, "sfc@ietf.org<mailto:sfc@ietf.org>" <sfc@ietf.org<mailto:sfc@i=
etf.org>>, "nvo3@ietf.org<mailto:nvo3@ietf.org>" <nvo3@ietf.org<mailto:nvo3=
@ietf.org>>, "rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>" <rtg-ooam-=
dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>>, "rtgwg@ietf.org<mailto:rtgwg@iet=
f.org>" <rtgwg@ietf.org<mailto:rtgwg@ietf.org>>
Cc: "rbonica@juniper.net<mailto:rbonica@juniper.net>" <rbonica@juniper.net<=
mailto:rbonica@juniper.net>>
Subject: [nvo3] Comments to OOAM Requirements draft from Ron Bonica

Dear All,
Ron reviewed the Overlay OAM Requirements<https://tools.ietf.org/html/draft=
-ooamdt-rtgwg-ooam-requirement-00> draft and shared his comments under RB> =
tag. The attached copy has my responses in under GIM> tag as well. We invit=
e members of BIER, NVO3, SCC and RTG WGs to join in the discussion. Appreci=
ate you review, comments on OOAM Requirements draft and OAM for Overlay Net=
works: Gap Analysis.

                Regards,
                                Greg

--_000_D3B540DB6B713sadikshiciscocom_
Content-Type: text/html; charset="Windows-1252"
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<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3DWindows-1=
252">
</head>
<body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-lin=
e-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-fami=
ly: Calibri, sans-serif;">
<div>Hi Greg, Authors of ooam-dt set of drafts</div>
<div><br>
</div>
<div>Other than current requirements, it will be great to explicitly suppor=
t the OAM PDU semantics.&nbsp;</div>
<ul>
<li>apply OAM function_set to group of VNI or band of VNI=92s and this info=
rmation carried in same OAM PDU. Although the response can be discrete on a=
 per VNI basis based on how and where the response is triggered from. If It=
=92s proxy from remote NVE, then the
 response can be a replication to the request. This is will reduce the numb=
er of probes which need to be send to perform the OAM functions.</li><li>It=
 will be great to designate VNI=92s as L2 or L3 and apply function_Set to t=
hem. This is implicitly derived in data-path, but for OAM PDUs, it will hel=
p to make it explicit either via using some flags or some other semantics. =
Hence we can carry bunch of
 L2 and L3 vnis with corresponding function-set</li></ul>
<div>In case these are valid requirements, which I feel they are. Can they =
find a place in existing document.</div>
<div>I can also come out with a peripheral draft defining these.&nbsp;</div=
>
<div><br>
</div>
<div>Thanks</div>
<div>Saumya.</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div style=3D"font-family:Calibri; font-size:11pt; text-align:left; color:b=
lack; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM:=
 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid;=
 BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<span style=3D"font-weight:bold">From: </span>nvo3 &lt;<a href=3D"mailto:nv=
o3-bounces@ietf.org">nvo3-bounces@ietf.org</a>&gt; on behalf of sadikshi &l=
t;<a href=3D"mailto:sadikshi@cisco.com">sadikshi@cisco.com</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Monday, July 4, 2016 at 8:09 =
PM<br>
<span style=3D"font-weight:bold">To: </span>&quot;Nagendra Kumar Nainar (na=
ikumar)&quot; &lt;<a href=3D"mailto:naikumar@cisco.com">naikumar@cisco.com<=
/a>&gt;, Gregory Mirsky &lt;<a href=3D"mailto:gregory.mirsky@ericsson.com">=
gregory.mirsky@ericsson.com</a>&gt;, &quot;BIER (<a href=3D"mailto:bier@iet=
f.org">bier@ietf.org</a>)&quot;
 &lt;<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>&gt;, &quot;<a href=
=3D"mailto:sfc@ietf.org">sfc@ietf.org</a>&quot; &lt;<a href=3D"mailto:sfc@i=
etf.org">sfc@ietf.org</a>&gt;, &quot;<a href=3D"mailto:nvo3@ietf.org">nvo3@=
ietf.org</a>&quot; &lt;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&g=
t;, &quot;<a href=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&=
quot;
 &lt;<a href=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&gt;, =
&quot;<a href=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&quot; &lt;<a hre=
f=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:rbonica=
@juniper.net">rbonica@juniper.net</a>&quot; &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>Re: [nvo3] [Bier] Comments=
 to OOAM Requirements draft from Ron Bonica<br>
</div>
<div><br>
</div>
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div>Hi Nagendra,</div>
<div><br>
</div>
<div>Thanks for the response. I missed this one in the below email:</div>
<div><br>
</div>
<div>
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;"><i>&gt;&gt;&gt;&gt;&gt; REQ#14: Overlay OAM MUS=
T have the ability to discover and exercise
            equal cost multipath (ECMP) paths in its transport network.</i>=
</pre>
</div>
<div><br>
</div>
<div>This will require the underlay nodes/router/switches to support OAM se=
mantics, which may not be possible&nbsp;</div>
<div>in case of brownfield deployments (deploying NVO tunnels over existing=
 IP-core network).&nbsp;</div>
<div><br>
</div>
<div><br>
</div>
<div>Regards,</div>
<div>Saumya.</div>
<div><br>
</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div style=3D"font-family:Calibri; font-size:11pt; text-align:left; color:b=
lack; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM:=
 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid;=
 BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<span style=3D"font-weight:bold">From: </span>&quot;Nagendra Kumar Nainar (=
naikumar)&quot; &lt;<a href=3D"mailto:naikumar@cisco.com">naikumar@cisco.co=
m</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Monday, July 4, 2016 at 4:39 =
PM<br>
<span style=3D"font-weight:bold">To: </span>sadikshi &lt;<a href=3D"mailto:=
sadikshi@cisco.com">sadikshi@cisco.com</a>&gt;, Gregory Mirsky &lt;<a href=
=3D"mailto:gregory.mirsky@ericsson.com">gregory.mirsky@ericsson.com</a>&gt;=
, &quot;BIER (<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>)&quot;
 &lt;<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>&gt;, &quot;<a href=
=3D"mailto:sfc@ietf.org">sfc@ietf.org</a>&quot; &lt;<a href=3D"mailto:sfc@i=
etf.org">sfc@ietf.org</a>&gt;, &quot;<a href=3D"mailto:nvo3@ietf.org">nvo3@=
ietf.org</a>&quot; &lt;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&g=
t;, &quot;<a href=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&=
quot;
 &lt;<a href=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&gt;, =
&quot;<a href=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&quot; &lt;<a hre=
f=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:rbonica=
@juniper.net">rbonica@juniper.net</a>&quot; &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>Re: [Bier] [nvo3] Comments=
 to OOAM Requirements draft from Ron Bonica<br>
</div>
<div><br>
</div>
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div>HI Saumya,</div>
<div><br>
</div>
<div>Please see inline..</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Hi Greg,</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
I have following queries on&nbsp;<span style=3D"font-size: 15px;">&nbsp;</s=
pan><a href=3D"https://tools.ietf.org/html/draft-ooamdt-rtgwg-ooam-requirem=
ent-00" style=3D"font-size: 15px;">Overlay OAM Requirements</a>:</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;">&gt;&gt;&gt;&gt;&gt; <i>REQ#6:  Overlay OAM pac=
kets SHOULD be fate sharing with data traffic,
            i.e. in-band with the monitored traffic, i.e. follow exactly
            the same path as data plane traffic, in forward direction,
            i.e. from ingress toward egress end point(s) of the OAM test
            session.</i></pre>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
=93Exactly same path=94, should be made explicit if it=92s referring to the=
 underlay transport path.</div>
</div>
</div>
</span>
<div><br>
</div>
<div>&lt;Nagendra&gt; Yes, that is the intention. We will clarify it.</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<font face=3D"Calibri,sans-serif" style=3D"widows: 1;">&quot;</font><span s=
tyle=3D"widows: 1;"><font face=3D"Calibri,sans-serif"><span style=3D"font-s=
tyle: italic; font-size: 13.3333px;">OAM packets SHOULD be fate sharing wit=
h data traffic</span><span style=3D"font-style: italic; font-size: 13px;">=
=94</span><span style=3D"font-size: 13.3333px;"><i>&nbsp;</i>will
 not apply to &quot;</span></font></span><i style=3D"widows: 1;"><span styl=
e=3D"font-size: 13.3333px;">REQ#3: &nbsp;</span><span style=3D"font-size: 1=
3.3333px;">centralized controller</span><span style=3D"font-size: 13px;">=
=94</span><span style=3D"font-size: 13.3333px;">.</span></i></div>
<div style=3D"widows: 1;">I think =93SHOULD=94 should be treated as a =93MU=
ST=94 if the reference is within the document :)</div>
</div>
</div>
</span>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;"><i>&gt;&gt;&gt;&gt;&gt; REQ#11: Overlay OAM MUS=
T support fault localization of Loss of
            Continuity check.</i></pre>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Does the =93localization=94 maps to overlay node/link context ? Can we have=
 a =93MAY=94 requirement for mapping</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
it to underlay. Since in datacenter, with more of east-west traffic, there =
might be deployment requirement</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
to narrow down to underlay for a speedier fault management.</div>
</div>
</div>
</span>
<div><br>
</div>
<div>&lt;Nagendra&gt; MAY statement sounds reasonable.</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
REQ#22 =97 REQ#25 refer to =93per-segment=94.&nbsp;</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
A =93segment=94 maps to a NVO-tunnel?&nbsp;</div>
</div>
</div>
</span>
<div><br>
</div>
<div>&lt;Nagendra&gt; Yes, a segment referes to NVO tunnel between NVEs. Mu=
ltiple such segments may comprise an end-to-end tunnel.</div>
<div><br>
</div>
<div>&nbsp;Shouldn=92t there be on a &nbsp;per-VNI basis as well.</div>
<div><br>
</div>
<div>&lt;Nagendra&gt;I think &nbsp;the granularity should definitely at per=
-VNI level.&nbsp;</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;"><i>&gt;&gt;&gt;&gt;&gt; REQ#7:  Overlay OAM MUS=
T support bi-directional OAM methods.  Such
            OAM methods MAY combine in-band monitoring or measurement in
            forward direction and out-of-band notification in the
            reverse direction, i.e. from egress to ingress end point of
            the OAM test session.</i></pre>
<div><br>
</div>
<div>In case of optical deployments like, fiber management (both request an=
d response) can be out-of-band, hence may</div>
<div>need a mention here.&nbsp;</div>
</div>
</div>
</div>
</span>
<div>&lt;Nagendra&gt; I see. We will check this.</div>
<div><br>
</div>
<div>Thanks for your comments.</div>
<div><br>
</div>
<div>Regards,</div>
<div>Nagendra</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Thanks</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Saumya</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION" style=3D"color: rgb(0, 0, 0); font-family=
: Calibri, sans-serif; font-size: 14px;">
<div style=3D"font-family:Calibri; font-size:11pt; text-align:left; color:b=
lack; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM:=
 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid;=
 BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<span style=3D"font-weight:bold">From: </span>nvo3 &lt;<a href=3D"mailto:nv=
o3-bounces@ietf.org">nvo3-bounces@ietf.org</a>&gt; on behalf of Gregory Mir=
sky &lt;<a href=3D"mailto:gregory.mirsky@ericsson.com">gregory.mirsky@erics=
son.com</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Tuesday, April 5, 2016 at 1:3=
9 AM<br>
<span style=3D"font-weight:bold">To: </span>&quot;BIER (<a href=3D"mailto:b=
ier@ietf.org">bier@ietf.org</a>)&quot; &lt;<a href=3D"mailto:bier@ietf.org"=
>bier@ietf.org</a>&gt;, &quot;<a href=3D"mailto:sfc@ietf.org">sfc@ietf.org<=
/a>&quot; &lt;<a href=3D"mailto:sfc@ietf.org">sfc@ietf.org</a>&gt;, &quot;<=
a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&quot;
 &lt;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&gt;, &quot;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&quot; &lt;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&gt;, &quot;<a hre=
f=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&quot; &lt;<a href=3D"mailto:=
rtgwg@ietf.org">rtgwg@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:rbonica=
@juniper.net">rbonica@juniper.net</a>&quot; &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>[nvo3] Comments to OOAM Re=
quirements draft from Ron Bonica<br>
</div>
<div><br>
</div>
<div xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micro=
soft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" x=
mlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" xmlns=3D"http:/=
/www.w3.org/TR/REC-html40">
<meta name=3D"Generator" content=3D"Microsoft Word 14 (filtered medium)">
<style><!--
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a:visited, span.MsoHyperlinkFollowed
	{mso-style-priority:99;
	color:purple;
	text-decoration:underline;}
span.EmailStyle17
	{mso-style-type:personal-compose;
	font-family:"Calibri","sans-serif";
	color:windowtext;}
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	{mso-style-type:export-only;
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<div lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal">Dear All,<o:p></o:p></p>
<p class=3D"MsoNormal">Ron reviewed the <a href=3D"https://tools.ietf.org/h=
tml/draft-ooamdt-rtgwg-ooam-requirement-00">
Overlay OAM Requirements</a> draft and shared his comments under RB&gt; tag=
. The attached copy has my responses in under GIM&gt; tag as well. We invit=
e members of BIER, NVO3, SCC and RTG WGs to join in the discussion. Appreci=
ate you review, comments on OOAM Requirements
 draft and OAM for Overlay Networks: Gap Analysis.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Regards,<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Greg<o:p></o:p>=
</p>
</div>
</div>
</div>
</span></div>
</div>
</span></div>
</div>
</span></div>
</div>
</span>
</body>
</html>

--_000_D3B540DB6B713sadikshiciscocom_--


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From: Alia Atlas <akatlas@gmail.com>
Date: Thu, 21 Jul 2016 09:16:57 -0400
Message-ID: <CAG4d1rc4n7e64EcJ4=54NVbPeRNQzic34OO_+=WsMuHpmyHM2Q@mail.gmail.com>
Subject: Closing Routing Area Overlay OAM Design Team
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--001a114a8498ede837053825214a
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On Dec 16, 2015, I chartered an Overlay OAM Design Team (
https://mailarchive.ietf.org/arch/msg/routing-discussion/ZQYpinvWWdjdLrC-gAtnqat_vSU
) to investigate solutions for common OAM for multiple overlays and
encapsulations, with a focus on the work from NVO3, SFC, and BIER.

The design team has produced a number of different drafts about
possibilities in this space.

    draft-ooamdt-rtgwg-oam-gap-analysis-02
    draft-ooamdt-rtgwg-ooam-requirement-01
    draft-ooamdt-rtgwg-ooam-header-00
    draft-ooamdt-rtgwg-demand-cc-cv-00

There are still open questions around cross-layer correlations and other
innovations in OAM.
There is a need to more contributions, review and discussion.
In addition, there is now sufficient interest that I believe it is better
to close the design team and open up its mailing list to participation.  As
of today, the DT is closed.

To join the non-WG mailing list that the DT has previously used, please use:

       https://www.ietf.org/mailman/listinfo/rtg-ooam-d

tI have and will be continuing to active discuss how and where related work
should be managed.

I would like to thank the Design Team:
    Greg Mirsky (DT lead)
    Ignas Bagdonas
    Erik Nordmark
    Carlos Pignataro
    Mach Chen
   Santosh Pallagatti
   Deepak Kumarde
   David Mozes
   Nagendra Kumar Nainar

I would particularly like to thank Greg Mirsky who has lead the DT.
Thank you also to all those who have actively participated, provided
reviews and thoughts.

Thank you,
Alia

--001a114a8498ede837053825214a
Content-Type: text/html; charset=UTF-8
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<div dir=3D"ltr"><div style=3D"min-height:100%"><div class=3D"" style=3D"wi=
dth:1229px"><div class=3D"" style=3D""><div class=3D""><div class=3D""><div=
 class=3D"" style=3D"width:1027px"><div class=3D""><div class=3D""><div cla=
ss=3D""><div class=3D""><div id=3D":4" class=3D"" style=3D"height:646px"><d=
iv id=3D":2" class=3D"" style=3D"min-height:220px"><div class=3D""><div cla=
ss=3D""><div class=3D"">On Dec 16, 2015, I chartered an Overlay OAM Design =
Team (<a href=3D"https://mailarchive.ietf.org/arch/msg/routing-discussion/Z=
QYpinvWWdjdLrC-gAtnqat_vSU">https://mailarchive.ietf.org/arch/msg/routing-d=
iscussion/ZQYpinvWWdjdLrC-gAtnqat_vSU</a> ) to investigate solutions for co=
mmon OAM for multiple overlays and encapsulations, with a focus on the work=
 from NVO3, SFC, and BIER.<br><br></div><div class=3D"">The design team has=
 produced a number of different drafts about possibilities in this space.<b=
r><br>=C2=A0 =C2=A0 draft-ooamdt-rtgwg-oam-gap-analysis-02<br>=C2=A0 =C2=A0=
 draft-ooamdt-rtgwg-ooam-requirement-01 <br>=C2=A0 =C2=A0 draft-ooamdt-rtgw=
g-ooam-header-00</div><div class=3D"">=C2=A0 =C2=A0 draft-ooamdt-rtgwg-dema=
nd-cc-cv-00 <br><br>There are still open questions around cross-layer corre=
lations and other innovations in OAM.<br>There is a need to more contributi=
ons, review and discussion. =C2=A0<br>In addition, there is now sufficient =
interest that I believe it is better to close the design team and open up i=
ts mailing list to participation.=C2=A0 As of today, the DT is closed.<br><=
br>To join the non-WG mailing list that the DT has previously used, please =
use:<br><br>=C2=A0 =C2=A0 =C2=A0 =C2=A0<a href=3D"https://www.ietf.org/mail=
man/listinfo/rtg-ooam-d">https://www.ietf.org/mailman/listinfo/rtg-ooam-d</=
a></div><div class=3D""><br></div><div class=3D"">tI have and will be conti=
nuing to active discuss how and where related work should be managed.<br><b=
r>I would like to thank the Design Team: <br>=C2=A0 =C2=A0 Greg Mirsky (DT =
lead)<br>=C2=A0 =C2=A0 Ignas Bagdonas<br>=C2=A0 =C2=A0 Erik Nordmark<br>=C2=
=A0 =C2=A0 Carlos Pignataro<br>=C2=A0 =C2=A0 Mach Chen<br>=C2=A0 =C2=A0Sant=
osh Pallagatti<br>=C2=A0 =C2=A0Deepak Kumarde<br>=C2=A0 =C2=A0David Mozes<b=
r>=C2=A0 =C2=A0Nagendra Kumar Nainar<br><br>I would particularly like to th=
ank Greg Mirsky who has lead the DT.<br>Thank you also to all those who hav=
e actively participated, provided reviews and thoughts.<br><br>Thank you,<b=
r>Alia</div></div></div></div></div></div></div></div></div></div></div></d=
iv></div></div></div></div>

--001a114a8498ede837053825214a--


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From: "Eric Voit (evoit)" <evoit@cisco.com>
To: Sam Aldrin <aldrin.ietf@gmail.com>
Subject: Q&A at Microphone on GRPC
Thread-Topic: Q&A at Microphone on GRPC
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Date: Thu, 21 Jul 2016 20:12:41 +0000
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Hi Sam,

Looking at the Etherpad notes for Tuesday's session in GRPC there is the fo=
llowing Q&A exchange:
Alia: how yang push could interwork from model perspective.
Sam: YANG is not the only thing that we are looking at, there are other mod=
elling approaches available.

Based on the NETCONF WG's adoption of RFC-5277bis on Wednesday, a simplifie=
d yang push subscription model can now be applied to event streams of non-Y=
ANG data.

If you guys want to work though how we might merge this with GRPC transport=
, let me know.  Some pretty cool capabilities could result.

Thanks,
Eric


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<p class=3D"MsoNormal">Hi Sam,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Looking at the Etherpad notes for Tuesday&#8217;s se=
ssion in GRPC there is the following Q&amp;A exchange:<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"line-height:12.0pt"><span style=3D"font-siz=
e:9.0pt;font-family:&quot;Courier New&quot;;color:black;background:#ECD4E6"=
>Alia: how yang push could interwork from model perspective.&nbsp;</span><s=
pan style=3D"font-size:9.0pt;font-family:&quot;Courier New&quot;;color:blac=
k"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"line-height:12.0pt"><span style=3D"font-siz=
e:9.0pt;font-family:&quot;Courier New&quot;;color:black;background:#ECD4E6"=
>Sam: YANG is not the only thing that we are looking at, there are other mo=
delling approaches available.&nbsp;</span><span style=3D"font-size:9.0pt;fo=
nt-family:&quot;Courier New&quot;;color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Based on the NETCONF WG&#8217;s adoption of RFC-5277=
bis on Wednesday, a simplified yang push subscription model can now be appl=
ied to event streams of non-YANG data.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">If you guys want to work though how we might merge t=
his with GRPC transport, let me know.&nbsp; Some pretty cool capabilities c=
ould result.<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">Eric<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
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From: "Deepak Kumar (dekumar)" <dekumar@cisco.com>
To: "Saumya Dikshit (sadikshi)" <sadikshi@cisco.com>, "Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com>, Gregory Mirsky <gregory.mirsky@ericsson.com>, "BIER (bier@ietf.org)" <bier@ietf.org>, "sfc@ietf.org" <sfc@ietf.org>, "nvo3@ietf.org" <nvo3@ietf.org>, "rtg-ooam-dt@ietf.org" <rtg-ooam-dt@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: Re: [Rtg-ooam-dt] [nvo3] [Bier] Comments to OOAM Requirements draft from Ron Bonica
Thread-Topic: [Rtg-ooam-dt] [nvo3] [Bier] Comments to OOAM Requirements draft from Ron Bonica
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Date: Thu, 21 Jul 2016 22:07:17 +0000
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References: <D3A02275.68F4D%sadikshi@cisco.com> <D39FBA41.16A342%naikumar@cisco.com> <D3A0A205.68FC7%sadikshi@cisco.com> <D3B540DB.6B713%sadikshi@cisco.com>
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Hi,

Below requirement looks like deal with ability of OAM to be extensible. We =
should add requirement regarding Extensibility for OAM protocol without add=
ing details of VNI, etc.

Thanks,
Deepak

From: Rtg-ooam-dt <rtg-ooam-dt-bounces@ietf.org<mailto:rtg-ooam-dt-bounces@=
ietf.org>> on behalf of "Saumya Dikshit (sadikshi)" <sadikshi@cisco.com<mai=
lto:sadikshi@cisco.com>>
Date: Wednesday, July 20, 2016 at 6:03 AM
To: "Saumya Dikshit (sadikshi)" <sadikshi@cisco.com<mailto:sadikshi@cisco.c=
om>>, "Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com<mailto:naikuma=
r@cisco.com>>, Gregory Mirsky <gregory.mirsky@ericsson.com<mailto:gregory.m=
irsky@ericsson.com>>, "BIER (bier@ietf.org<mailto:bier@ietf.org>)" <bier@ie=
tf.org<mailto:bier@ietf.org>>, "sfc@ietf.org<mailto:sfc@ietf.org>" <sfc@iet=
f.org<mailto:sfc@ietf.org>>, "nvo3@ietf.org<mailto:nvo3@ietf.org>" <nvo3@ie=
tf.org<mailto:nvo3@ietf.org>>, "rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@iet=
f.org>" <rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>>, "rtgwg@ietf.or=
g<mailto:rtgwg@ietf.org>" <rtgwg@ietf.org<mailto:rtgwg@ietf.org>>
Cc: "rbonica@juniper.net<mailto:rbonica@juniper.net>" <rbonica@juniper.net<=
mailto:rbonica@juniper.net>>
Subject: Re: [Rtg-ooam-dt] [nvo3] [Bier] Comments to OOAM Requirements draf=
t from Ron Bonica

Hi Greg, Authors of ooam-dt set of drafts

Other than current requirements, it will be great to explicitly support the=
 OAM PDU semantics.

  *   apply OAM function_set to group of VNI or band of VNI=92s and this in=
formation carried in same OAM PDU. Although the response can be discrete on=
 a per VNI basis based on how and where the response is triggered from. If =
It=92s proxy from remote NVE, then the response can be a replication to the=
 request. This is will reduce the number of probes which need to be send to=
 perform the OAM functions.
  *   It will be great to designate VNI=92s as L2 or L3 and apply function_=
Set to them. This is implicitly derived in data-path, but for OAM PDUs, it =
will help to make it explicit either via using some flags or some other sem=
antics. Hence we can carry bunch of L2 and L3 vnis with corresponding funct=
ion-set

In case these are valid requirements, which I feel they are. Can they find =
a place in existing document.
I can also come out with a peripheral draft defining these.

Thanks
Saumya.

From: nvo3 <nvo3-bounces@ietf.org<mailto:nvo3-bounces@ietf.org>> on behalf =
of sadikshi <sadikshi@cisco.com<mailto:sadikshi@cisco.com>>
Date: Monday, July 4, 2016 at 8:09 PM
To: "Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com<mailto:naikumar@=
cisco.com>>, Gregory Mirsky <gregory.mirsky@ericsson.com<mailto:gregory.mir=
sky@ericsson.com>>, "BIER (bier@ietf.org<mailto:bier@ietf.org>)" <bier@ietf=
.org<mailto:bier@ietf.org>>, "sfc@ietf.org<mailto:sfc@ietf.org>" <sfc@ietf.=
org<mailto:sfc@ietf.org>>, "nvo3@ietf.org<mailto:nvo3@ietf.org>" <nvo3@ietf=
.org<mailto:nvo3@ietf.org>>, "rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.=
org>" <rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>>, "rtgwg@ietf.org<=
mailto:rtgwg@ietf.org>" <rtgwg@ietf.org<mailto:rtgwg@ietf.org>>
Cc: "rbonica@juniper.net<mailto:rbonica@juniper.net>" <rbonica@juniper.net<=
mailto:rbonica@juniper.net>>
Subject: Re: [nvo3] [Bier] Comments to OOAM Requirements draft from Ron Bon=
ica

Hi Nagendra,

Thanks for the response. I missed this one in the below email:


>>>>> REQ#14: Overlay OAM MUST have the ability to discover and exercise
            equal cost multipath (ECMP) paths in its transport network.

This will require the underlay nodes/router/switches to support OAM semanti=
cs, which may not be possible
in case of brownfield deployments (deploying NVO tunnels over existing IP-c=
ore network).


Regards,
Saumya.


From: "Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com<mailto:naikuma=
r@cisco.com>>
Date: Monday, July 4, 2016 at 4:39 PM
To: sadikshi <sadikshi@cisco.com<mailto:sadikshi@cisco.com>>, Gregory Mirsk=
y <gregory.mirsky@ericsson.com<mailto:gregory.mirsky@ericsson.com>>, "BIER =
(bier@ietf.org<mailto:bier@ietf.org>)" <bier@ietf.org<mailto:bier@ietf.org>=
>, "sfc@ietf.org<mailto:sfc@ietf.org>" <sfc@ietf.org<mailto:sfc@ietf.org>>,=
 "nvo3@ietf.org<mailto:nvo3@ietf.org>" <nvo3@ietf.org<mailto:nvo3@ietf.org>=
>, "rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>" <rtg-ooam-dt@ietf.or=
g<mailto:rtg-ooam-dt@ietf.org>>, "rtgwg@ietf.org<mailto:rtgwg@ietf.org>" <r=
tgwg@ietf.org<mailto:rtgwg@ietf.org>>
Cc: "rbonica@juniper.net<mailto:rbonica@juniper.net>" <rbonica@juniper.net<=
mailto:rbonica@juniper.net>>
Subject: Re: [Bier] [nvo3] Comments to OOAM Requirements draft from Ron Bon=
ica

HI Saumya,

Please see inline..

Hi Greg,

I have following queries on  Overlay OAM Requirements<https://tools.ietf.or=
g/html/draft-ooamdt-rtgwg-ooam-requirement-00>:


>>>>> REQ#6:  Overlay OAM packets SHOULD be fate sharing with data traffic,
            i.e. in-band with the monitored traffic, i.e. follow exactly
            the same path as data plane traffic, in forward direction,
            i.e. from ingress toward egress end point(s) of the OAM test
            session.

=93Exactly same path=94, should be made explicit if it=92s referring to the=
 underlay transport path.

<Nagendra> Yes, that is the intention. We will clarify it.

"OAM packets SHOULD be fate sharing with data traffic=94 will not apply to =
"REQ#3:  centralized controller=94.
I think =93SHOULD=94 should be treated as a =93MUST=94 if the reference is =
within the document :)



>>>>> REQ#11: Overlay OAM MUST support fault localization of Loss of
            Continuity check.

Does the =93localization=94 maps to overlay node/link context ? Can we have=
 a =93MAY=94 requirement for mapping
it to underlay. Since in datacenter, with more of east-west traffic, there =
might be deployment requirement
to narrow down to underlay for a speedier fault management.

<Nagendra> MAY statement sounds reasonable.

REQ#22 =97 REQ#25 refer to =93per-segment=94.
A =93segment=94 maps to a NVO-tunnel?

<Nagendra> Yes, a segment referes to NVO tunnel between NVEs. Multiple such=
 segments may comprise an end-to-end tunnel.

 Shouldn=92t there be on a  per-VNI basis as well.

<Nagendra>I think  the granularity should definitely at per-VNI level.


>>>>> REQ#7:  Overlay OAM MUST support bi-directional OAM methods.  Such
            OAM methods MAY combine in-band monitoring or measurement in
            forward direction and out-of-band notification in the
            reverse direction, i.e. from egress to ingress end point of
            the OAM test session.

In case of optical deployments like, fiber management (both request and res=
ponse) can be out-of-band, hence may
need a mention here.
<Nagendra> I see. We will check this.

Thanks for your comments.

Regards,
Nagendra


Thanks
Saumya

From: nvo3 <nvo3-bounces@ietf.org<mailto:nvo3-bounces@ietf.org>> on behalf =
of Gregory Mirsky <gregory.mirsky@ericsson.com<mailto:gregory.mirsky@ericss=
on.com>>
Date: Tuesday, April 5, 2016 at 1:39 AM
To: "BIER (bier@ietf.org<mailto:bier@ietf.org>)" <bier@ietf.org<mailto:bier=
@ietf.org>>, "sfc@ietf.org<mailto:sfc@ietf.org>" <sfc@ietf.org<mailto:sfc@i=
etf.org>>, "nvo3@ietf.org<mailto:nvo3@ietf.org>" <nvo3@ietf.org<mailto:nvo3=
@ietf.org>>, "rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>" <rtg-ooam-=
dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>>, "rtgwg@ietf.org<mailto:rtgwg@iet=
f.org>" <rtgwg@ietf.org<mailto:rtgwg@ietf.org>>
Cc: "rbonica@juniper.net<mailto:rbonica@juniper.net>" <rbonica@juniper.net<=
mailto:rbonica@juniper.net>>
Subject: [nvo3] Comments to OOAM Requirements draft from Ron Bonica

Dear All,
Ron reviewed the Overlay OAM Requirements<https://tools.ietf.org/html/draft=
-ooamdt-rtgwg-ooam-requirement-00> draft and shared his comments under RB> =
tag. The attached copy has my responses in under GIM> tag as well. We invit=
e members of BIER, NVO3, SCC and RTG WGs to join in the discussion. Appreci=
ate you review, comments on OOAM Requirements draft and OAM for Overlay Net=
works: Gap Analysis.

                Regards,
                                Greg

--_000_D3B6922519326dekumarciscocom_
Content-Type: text/html; charset="Windows-1252"
Content-ID: <1CC615140F76794E8D7C97E639AE7884@emea.cisco.com>
Content-Transfer-Encoding: quoted-printable

<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3DWindows-1=
252">
</head>
<body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-lin=
e-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-fami=
ly: Calibri, sans-serif;">
<div>Hi,</div>
<div><br>
</div>
<div>Below requirement looks like deal with ability of OAM to be extensible=
. We should add requirement regarding Extensibility for OAM protocol withou=
t adding details of VNI, etc.</div>
<div><br>
</div>
<div>Thanks,</div>
<div>Deepak</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div style=3D"font-family:Calibri; font-size:11pt; text-align:left; color:b=
lack; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM:=
 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid;=
 BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<span style=3D"font-weight:bold">From: </span>Rtg-ooam-dt &lt;<a href=3D"ma=
ilto:rtg-ooam-dt-bounces@ietf.org">rtg-ooam-dt-bounces@ietf.org</a>&gt; on =
behalf of &quot;Saumya Dikshit (sadikshi)&quot; &lt;<a href=3D"mailto:sadik=
shi@cisco.com">sadikshi@cisco.com</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Wednesday, July 20, 2016 at 6=
:03 AM<br>
<span style=3D"font-weight:bold">To: </span>&quot;Saumya Dikshit (sadikshi)=
&quot; &lt;<a href=3D"mailto:sadikshi@cisco.com">sadikshi@cisco.com</a>&gt;=
, &quot;Nagendra Kumar Nainar (naikumar)&quot; &lt;<a href=3D"mailto:naikum=
ar@cisco.com">naikumar@cisco.com</a>&gt;, Gregory Mirsky &lt;<a href=3D"mai=
lto:gregory.mirsky@ericsson.com">gregory.mirsky@ericsson.com</a>&gt;,
 &quot;BIER (<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>)&quot; &lt;=
<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>&gt;, &quot;<a href=3D"ma=
ilto:sfc@ietf.org">sfc@ietf.org</a>&quot; &lt;<a href=3D"mailto:sfc@ietf.or=
g">sfc@ietf.org</a>&gt;, &quot;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.o=
rg</a>&quot;
 &lt;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&gt;, &quot;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&quot; &lt;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&gt;, &quot;<a hre=
f=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&quot; &lt;<a href=3D"mailto:=
rtgwg@ietf.org">rtgwg@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:rbonica=
@juniper.net">rbonica@juniper.net</a>&quot; &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>Re: [Rtg-ooam-dt] [nvo3] [=
Bier] Comments to OOAM Requirements draft from Ron Bonica<br>
</div>
<div><br>
</div>
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div>Hi Greg, Authors of ooam-dt set of drafts</div>
<div><br>
</div>
<div>Other than current requirements, it will be great to explicitly suppor=
t the OAM PDU semantics.&nbsp;</div>
<ul>
<li>apply OAM function_set to group of VNI or band of VNI=92s and this info=
rmation carried in same OAM PDU. Although the response can be discrete on a=
 per VNI basis based on how and where the response is triggered from. If It=
=92s proxy from remote NVE, then the
 response can be a replication to the request. This is will reduce the numb=
er of probes which need to be send to perform the OAM functions.</li><li>It=
 will be great to designate VNI=92s as L2 or L3 and apply function_Set to t=
hem. This is implicitly derived in data-path, but for OAM PDUs, it will hel=
p to make it explicit either via using some flags or some other semantics. =
Hence we can carry bunch of
 L2 and L3 vnis with corresponding function-set</li></ul>
<div>In case these are valid requirements, which I feel they are. Can they =
find a place in existing document.</div>
<div>I can also come out with a peripheral draft defining these.&nbsp;</div=
>
<div><br>
</div>
<div>Thanks</div>
<div>Saumya.</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div style=3D"font-family:Calibri; font-size:11pt; text-align:left; color:b=
lack; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM:=
 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid;=
 BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<span style=3D"font-weight:bold">From: </span>nvo3 &lt;<a href=3D"mailto:nv=
o3-bounces@ietf.org">nvo3-bounces@ietf.org</a>&gt; on behalf of sadikshi &l=
t;<a href=3D"mailto:sadikshi@cisco.com">sadikshi@cisco.com</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Monday, July 4, 2016 at 8:09 =
PM<br>
<span style=3D"font-weight:bold">To: </span>&quot;Nagendra Kumar Nainar (na=
ikumar)&quot; &lt;<a href=3D"mailto:naikumar@cisco.com">naikumar@cisco.com<=
/a>&gt;, Gregory Mirsky &lt;<a href=3D"mailto:gregory.mirsky@ericsson.com">=
gregory.mirsky@ericsson.com</a>&gt;, &quot;BIER (<a href=3D"mailto:bier@iet=
f.org">bier@ietf.org</a>)&quot;
 &lt;<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>&gt;, &quot;<a href=
=3D"mailto:sfc@ietf.org">sfc@ietf.org</a>&quot; &lt;<a href=3D"mailto:sfc@i=
etf.org">sfc@ietf.org</a>&gt;, &quot;<a href=3D"mailto:nvo3@ietf.org">nvo3@=
ietf.org</a>&quot; &lt;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&g=
t;, &quot;<a href=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&=
quot;
 &lt;<a href=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&gt;, =
&quot;<a href=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&quot; &lt;<a hre=
f=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:rbonica=
@juniper.net">rbonica@juniper.net</a>&quot; &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>Re: [nvo3] [Bier] Comments=
 to OOAM Requirements draft from Ron Bonica<br>
</div>
<div><br>
</div>
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div>Hi Nagendra,</div>
<div><br>
</div>
<div>Thanks for the response. I missed this one in the below email:</div>
<div><br>
</div>
<div>
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;"><i>&gt;&gt;&gt;&gt;&gt; REQ#14: Overlay OAM MUS=
T have the ability to discover and exercise
            equal cost multipath (ECMP) paths in its transport network.</i>=
</pre>
</div>
<div><br>
</div>
<div>This will require the underlay nodes/router/switches to support OAM se=
mantics, which may not be possible&nbsp;</div>
<div>in case of brownfield deployments (deploying NVO tunnels over existing=
 IP-core network).&nbsp;</div>
<div><br>
</div>
<div><br>
</div>
<div>Regards,</div>
<div>Saumya.</div>
<div><br>
</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div style=3D"font-family:Calibri; font-size:11pt; text-align:left; color:b=
lack; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM:=
 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid;=
 BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<span style=3D"font-weight:bold">From: </span>&quot;Nagendra Kumar Nainar (=
naikumar)&quot; &lt;<a href=3D"mailto:naikumar@cisco.com">naikumar@cisco.co=
m</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Monday, July 4, 2016 at 4:39 =
PM<br>
<span style=3D"font-weight:bold">To: </span>sadikshi &lt;<a href=3D"mailto:=
sadikshi@cisco.com">sadikshi@cisco.com</a>&gt;, Gregory Mirsky &lt;<a href=
=3D"mailto:gregory.mirsky@ericsson.com">gregory.mirsky@ericsson.com</a>&gt;=
, &quot;BIER (<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>)&quot;
 &lt;<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>&gt;, &quot;<a href=
=3D"mailto:sfc@ietf.org">sfc@ietf.org</a>&quot; &lt;<a href=3D"mailto:sfc@i=
etf.org">sfc@ietf.org</a>&gt;, &quot;<a href=3D"mailto:nvo3@ietf.org">nvo3@=
ietf.org</a>&quot; &lt;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&g=
t;, &quot;<a href=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&=
quot;
 &lt;<a href=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&gt;, =
&quot;<a href=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&quot; &lt;<a hre=
f=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:rbonica=
@juniper.net">rbonica@juniper.net</a>&quot; &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>Re: [Bier] [nvo3] Comments=
 to OOAM Requirements draft from Ron Bonica<br>
</div>
<div><br>
</div>
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div>HI Saumya,</div>
<div><br>
</div>
<div>Please see inline..</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Hi Greg,</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
I have following queries on&nbsp;<span style=3D"font-size: 15px;">&nbsp;</s=
pan><a href=3D"https://tools.ietf.org/html/draft-ooamdt-rtgwg-ooam-requirem=
ent-00" style=3D"font-size: 15px;">Overlay OAM Requirements</a>:</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;">&gt;&gt;&gt;&gt;&gt; <i>REQ#6:  Overlay OAM pac=
kets SHOULD be fate sharing with data traffic,
            i.e. in-band with the monitored traffic, i.e. follow exactly
            the same path as data plane traffic, in forward direction,
            i.e. from ingress toward egress end point(s) of the OAM test
            session.</i></pre>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
=93Exactly same path=94, should be made explicit if it=92s referring to the=
 underlay transport path.</div>
</div>
</div>
</span>
<div><br>
</div>
<div>&lt;Nagendra&gt; Yes, that is the intention. We will clarify it.</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<font face=3D"Calibri,sans-serif" style=3D"widows: 1;">&quot;</font><span s=
tyle=3D"widows: 1;"><font face=3D"Calibri,sans-serif"><span style=3D"font-s=
tyle: italic; font-size: 13.3333px;">OAM packets SHOULD be fate sharing wit=
h data traffic</span><span style=3D"font-style: italic; font-size: 13px;">=
=94</span><span style=3D"font-size: 13.3333px;"><i>&nbsp;</i>will
 not apply to &quot;</span></font></span><i style=3D"widows: 1;"><span styl=
e=3D"font-size: 13.3333px;">REQ#3: &nbsp;</span><span style=3D"font-size: 1=
3.3333px;">centralized controller</span><span style=3D"font-size: 13px;">=
=94</span><span style=3D"font-size: 13.3333px;">.</span></i></div>
<div style=3D"widows: 1;">I think =93SHOULD=94 should be treated as a =93MU=
ST=94 if the reference is within the document :)</div>
</div>
</div>
</span>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;"><i>&gt;&gt;&gt;&gt;&gt; REQ#11: Overlay OAM MUS=
T support fault localization of Loss of
            Continuity check.</i></pre>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Does the =93localization=94 maps to overlay node/link context ? Can we have=
 a =93MAY=94 requirement for mapping</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
it to underlay. Since in datacenter, with more of east-west traffic, there =
might be deployment requirement</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
to narrow down to underlay for a speedier fault management.</div>
</div>
</div>
</span>
<div><br>
</div>
<div>&lt;Nagendra&gt; MAY statement sounds reasonable.</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
REQ#22 =97 REQ#25 refer to =93per-segment=94.&nbsp;</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
A =93segment=94 maps to a NVO-tunnel?&nbsp;</div>
</div>
</div>
</span>
<div><br>
</div>
<div>&lt;Nagendra&gt; Yes, a segment referes to NVO tunnel between NVEs. Mu=
ltiple such segments may comprise an end-to-end tunnel.</div>
<div><br>
</div>
<div>&nbsp;Shouldn=92t there be on a &nbsp;per-VNI basis as well.</div>
<div><br>
</div>
<div>&lt;Nagendra&gt;I think &nbsp;the granularity should definitely at per=
-VNI level.&nbsp;</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;"><i>&gt;&gt;&gt;&gt;&gt; REQ#7:  Overlay OAM MUS=
T support bi-directional OAM methods.  Such
            OAM methods MAY combine in-band monitoring or measurement in
            forward direction and out-of-band notification in the
            reverse direction, i.e. from egress to ingress end point of
            the OAM test session.</i></pre>
<div><br>
</div>
<div>In case of optical deployments like, fiber management (both request an=
d response) can be out-of-band, hence may</div>
<div>need a mention here.&nbsp;</div>
</div>
</div>
</div>
</span>
<div>&lt;Nagendra&gt; I see. We will check this.</div>
<div><br>
</div>
<div>Thanks for your comments.</div>
<div><br>
</div>
<div>Regards,</div>
<div>Nagendra</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Thanks</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Saumya</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION" style=3D"color: rgb(0, 0, 0); font-family=
: Calibri, sans-serif; font-size: 14px;">
<div style=3D"font-family:Calibri; font-size:11pt; text-align:left; color:b=
lack; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM:=
 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid;=
 BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<span style=3D"font-weight:bold">From: </span>nvo3 &lt;<a href=3D"mailto:nv=
o3-bounces@ietf.org">nvo3-bounces@ietf.org</a>&gt; on behalf of Gregory Mir=
sky &lt;<a href=3D"mailto:gregory.mirsky@ericsson.com">gregory.mirsky@erics=
son.com</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Tuesday, April 5, 2016 at 1:3=
9 AM<br>
<span style=3D"font-weight:bold">To: </span>&quot;BIER (<a href=3D"mailto:b=
ier@ietf.org">bier@ietf.org</a>)&quot; &lt;<a href=3D"mailto:bier@ietf.org"=
>bier@ietf.org</a>&gt;, &quot;<a href=3D"mailto:sfc@ietf.org">sfc@ietf.org<=
/a>&quot; &lt;<a href=3D"mailto:sfc@ietf.org">sfc@ietf.org</a>&gt;, &quot;<=
a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&quot;
 &lt;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&gt;, &quot;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&quot; &lt;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&gt;, &quot;<a hre=
f=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&quot; &lt;<a href=3D"mailto:=
rtgwg@ietf.org">rtgwg@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:rbonica=
@juniper.net">rbonica@juniper.net</a>&quot; &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>[nvo3] Comments to OOAM Re=
quirements draft from Ron Bonica<br>
</div>
<div><br>
</div>
<div xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micro=
soft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" x=
mlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" xmlns=3D"http:/=
/www.w3.org/TR/REC-html40">
<meta name=3D"Generator" content=3D"Microsoft Word 14 (filtered medium)">
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<div class=3D"WordSection1">
<p class=3D"MsoNormal">Dear All,<o:p></o:p></p>
<p class=3D"MsoNormal">Ron reviewed the <a href=3D"https://tools.ietf.org/h=
tml/draft-ooamdt-rtgwg-ooam-requirement-00">
Overlay OAM Requirements</a> draft and shared his comments under RB&gt; tag=
. The attached copy has my responses in under GIM&gt; tag as well. We invit=
e members of BIER, NVO3, SCC and RTG WGs to join in the discussion. Appreci=
ate you review, comments on OOAM Requirements
 draft and OAM for Overlay Networks: Gap Analysis.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Regards,<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Greg<o:p></o:p>=
</p>
</div>
</div>
</div>
</span></div>
</div>
</span></div>
</div>
</span></div>
</div>
</span></div>
</div>
</span>
</body>
</html>

--_000_D3B6922519326dekumarciscocom_--


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References: <2ed41842a3fa4574a5e8ba12b0fff6c4@XCH-RTP-013.cisco.com>
From: Sam Aldrin <aldrin.ietf@gmail.com>
Date: Thu, 21 Jul 2016 15:10:35 -0700
Message-ID: <CA+C0YO29wV3EpGFEsLtEcXMTDpOJyvHpC8Y21CC2rEm1JcE9ug@mail.gmail.com>
Subject: Re: Q&A at Microphone on GRPC
To: "Eric Voit (evoit)" <evoit@cisco.com>
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--001a113ab81a5ddec105382c96ec
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

Hi Eric,

Thanks for reaching out.
We could continue the conversation and work towards getting the IETF
community benefit from the operators point of view, like we are doing with
OpenConfig.

cheers
-sam


On Thu, Jul 21, 2016 at 1:12 PM, Eric Voit (evoit) <evoit@cisco.com> wrote:

> Hi Sam,
>
>
>
> Looking at the Etherpad notes for Tuesday=E2=80=99s session in GRPC there=
 is the
> following Q&A exchange:
>
> Alia: how yang push could interwork from model perspective.
>
> Sam: YANG is not the only thing that we are looking at, there are other
> modelling approaches available.
>
>
>
> Based on the NETCONF WG=E2=80=99s adoption of RFC-5277bis on Wednesday, a
> simplified yang push subscription model can now be applied to event strea=
ms
> of non-YANG data.
>
>
>
> If you guys want to work though how we might merge this with GRPC
> transport, let me know.  Some pretty cool capabilities could result.
>
>
>
> Thanks,
>
> Eric
>
>
>

--001a113ab81a5ddec105382c96ec
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Hi Eric,<div><br></div><div>Thanks for reaching out.=C2=A0=
</div><div>We could continue the conversation and work towards getting the =
IETF community benefit from the operators point of view, like we are doing =
with OpenConfig.</div><div><br></div><div>cheers</div><div>-sam</div><div><=
br></div></div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On=
 Thu, Jul 21, 2016 at 1:12 PM, Eric Voit (evoit) <span dir=3D"ltr">&lt;<a h=
ref=3D"mailto:evoit@cisco.com" target=3D"_blank">evoit@cisco.com</a>&gt;</s=
pan> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex=
;border-left:1px #ccc solid;padding-left:1ex">





<div lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div>
<p class=3D"MsoNormal">Hi Sam,<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Looking at the Etherpad notes for Tuesday=E2=80=99s =
session in GRPC there is the following Q&amp;A exchange:<u></u><u></u></p>
<p class=3D"MsoNormal" style=3D"line-height:12.0pt"><span style=3D"font-siz=
e:9.0pt;font-family:&quot;Courier New&quot;;color:black;background:#ecd4e6"=
>Alia: how yang push could interwork from model perspective.=C2=A0</span><s=
pan style=3D"font-size:9.0pt;font-family:&quot;Courier New&quot;;color:blac=
k"><u></u><u></u></span></p>
<p class=3D"MsoNormal" style=3D"line-height:12.0pt"><span style=3D"font-siz=
e:9.0pt;font-family:&quot;Courier New&quot;;color:black;background:#ecd4e6"=
>Sam: YANG is not the only thing that we are looking at, there are other mo=
delling approaches available.=C2=A0</span><span style=3D"font-size:9.0pt;fo=
nt-family:&quot;Courier New&quot;;color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Based on the NETCONF WG=E2=80=99s adoption of RFC-52=
77bis on Wednesday, a simplified yang push subscription model can now be ap=
plied to event streams of non-YANG data.<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">If you guys want to work though how we might merge t=
his with GRPC transport, let me know.=C2=A0 Some pretty cool capabilities c=
ould result.<u></u><u></u></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">Eric<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
</div>

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

--001a113ab81a5ddec105382c96ec--


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From: "Saumya Dikshit (sadikshi)" <sadikshi@cisco.com>
To: "Deepak Kumar (dekumar)" <dekumar@cisco.com>, "Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com>, Gregory Mirsky <gregory.mirsky@ericsson.com>, "BIER (bier@ietf.org)" <bier@ietf.org>, "sfc@ietf.org" <sfc@ietf.org>, "nvo3@ietf.org" <nvo3@ietf.org>, "rtg-ooam-dt@ietf.org" <rtg-ooam-dt@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: Re: [Rtg-ooam-dt] [nvo3] [Bier] Comments to OOAM Requirements draft from Ron Bonica
Thread-Topic: [Rtg-ooam-dt] [nvo3] [Bier] Comments to OOAM Requirements draft from Ron Bonica
Thread-Index: AQHR4ocViWBwwTTmV0mY2c9hkRwUbKAjx0CAgAArxgA=
Date: Thu, 21 Jul 2016 22:44:00 +0000
Message-ID: <D3B71C49.6BA4C%sadikshi@cisco.com>
References: <D3A02275.68F4D%sadikshi@cisco.com> <D39FBA41.16A342%naikumar@cisco.com> <D3A0A205.68FC7%sadikshi@cisco.com> <D3B540DB.6B713%sadikshi@cisco.com> <D3B69225.19326%dekumar@cisco.com>
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--_000_D3B71C496BA4Csadikshiciscocom_
Content-Type: text/plain; charset="Windows-1252"
Content-Transfer-Encoding: quoted-printable

Thanks Deepak. I think we should also new define TLVs in draft-ooamdt-rtgwg=
-ooam-header or any alternative publication addressing the requirement.

From: "Deepak Kumar (dekumar)" <dekumar@cisco.com<mailto:dekumar@cisco.com>=
>
Date: Friday, July 22, 2016 at 12:07 AM
To: sadikshi <sadikshi@cisco.com<mailto:sadikshi@cisco.com>>, "Nagendra Kum=
ar Nainar (naikumar)" <naikumar@cisco.com<mailto:naikumar@cisco.com>>, Greg=
ory Mirsky <gregory.mirsky@ericsson.com<mailto:gregory.mirsky@ericsson.com>=
>, "BIER (bier@ietf.org<mailto:bier@ietf.org>)" <bier@ietf.org<mailto:bier@=
ietf.org>>, "sfc@ietf.org<mailto:sfc@ietf.org>" <sfc@ietf.org<mailto:sfc@ie=
tf.org>>, "nvo3@ietf.org<mailto:nvo3@ietf.org>" <nvo3@ietf.org<mailto:nvo3@=
ietf.org>>, "rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>" <rtg-ooam-d=
t@ietf.org<mailto:rtg-ooam-dt@ietf.org>>, "rtgwg@ietf.org<mailto:rtgwg@ietf=
.org>" <rtgwg@ietf.org<mailto:rtgwg@ietf.org>>
Cc: "rbonica@juniper.net<mailto:rbonica@juniper.net>" <rbonica@juniper.net<=
mailto:rbonica@juniper.net>>
Subject: Re: [Rtg-ooam-dt] [nvo3] [Bier] Comments to OOAM Requirements draf=
t from Ron Bonica

Hi,

Below requirement looks like deal with ability of OAM to be extensible. We =
should add requirement regarding Extensibility for OAM protocol without add=
ing details of VNI, etc.

Thanks,
Deepak

From: Rtg-ooam-dt <rtg-ooam-dt-bounces@ietf.org<mailto:rtg-ooam-dt-bounces@=
ietf.org>> on behalf of "Saumya Dikshit (sadikshi)" <sadikshi@cisco.com<mai=
lto:sadikshi@cisco.com>>
Date: Wednesday, July 20, 2016 at 6:03 AM
To: "Saumya Dikshit (sadikshi)" <sadikshi@cisco.com<mailto:sadikshi@cisco.c=
om>>, "Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com<mailto:naikuma=
r@cisco.com>>, Gregory Mirsky <gregory.mirsky@ericsson.com<mailto:gregory.m=
irsky@ericsson.com>>, "BIER (bier@ietf.org<mailto:bier@ietf.org>)" <bier@ie=
tf.org<mailto:bier@ietf.org>>, "sfc@ietf.org<mailto:sfc@ietf.org>" <sfc@iet=
f.org<mailto:sfc@ietf.org>>, "nvo3@ietf.org<mailto:nvo3@ietf.org>" <nvo3@ie=
tf.org<mailto:nvo3@ietf.org>>, "rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@iet=
f.org>" <rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>>, "rtgwg@ietf.or=
g<mailto:rtgwg@ietf.org>" <rtgwg@ietf.org<mailto:rtgwg@ietf.org>>
Cc: "rbonica@juniper.net<mailto:rbonica@juniper.net>" <rbonica@juniper.net<=
mailto:rbonica@juniper.net>>
Subject: Re: [Rtg-ooam-dt] [nvo3] [Bier] Comments to OOAM Requirements draf=
t from Ron Bonica

Hi Greg, Authors of ooam-dt set of drafts

Other than current requirements, it will be great to explicitly support the=
 OAM PDU semantics.

  *   apply OAM function_set to group of VNI or band of VNI=92s and this in=
formation carried in same OAM PDU. Although the response can be discrete on=
 a per VNI basis based on how and where the response is triggered from. If =
It=92s proxy from remote NVE, then the response can be a replication to the=
 request. This is will reduce the number of probes which need to be send to=
 perform the OAM functions.
  *   It will be great to designate VNI=92s as L2 or L3 and apply function_=
Set to them. This is implicitly derived in data-path, but for OAM PDUs, it =
will help to make it explicit either via using some flags or some other sem=
antics. Hence we can carry bunch of L2 and L3 vnis with corresponding funct=
ion-set

In case these are valid requirements, which I feel they are. Can they find =
a place in existing document.
I can also come out with a peripheral draft defining these.

Thanks
Saumya.

From: nvo3 <nvo3-bounces@ietf.org<mailto:nvo3-bounces@ietf.org>> on behalf =
of sadikshi <sadikshi@cisco.com<mailto:sadikshi@cisco.com>>
Date: Monday, July 4, 2016 at 8:09 PM
To: "Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com<mailto:naikumar@=
cisco.com>>, Gregory Mirsky <gregory.mirsky@ericsson.com<mailto:gregory.mir=
sky@ericsson.com>>, "BIER (bier@ietf.org<mailto:bier@ietf.org>)" <bier@ietf=
.org<mailto:bier@ietf.org>>, "sfc@ietf.org<mailto:sfc@ietf.org>" <sfc@ietf.=
org<mailto:sfc@ietf.org>>, "nvo3@ietf.org<mailto:nvo3@ietf.org>" <nvo3@ietf=
.org<mailto:nvo3@ietf.org>>, "rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.=
org>" <rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>>, "rtgwg@ietf.org<=
mailto:rtgwg@ietf.org>" <rtgwg@ietf.org<mailto:rtgwg@ietf.org>>
Cc: "rbonica@juniper.net<mailto:rbonica@juniper.net>" <rbonica@juniper.net<=
mailto:rbonica@juniper.net>>
Subject: Re: [nvo3] [Bier] Comments to OOAM Requirements draft from Ron Bon=
ica

Hi Nagendra,

Thanks for the response. I missed this one in the below email:


>>>>> REQ#14: Overlay OAM MUST have the ability to discover and exercise
            equal cost multipath (ECMP) paths in its transport network.

This will require the underlay nodes/router/switches to support OAM semanti=
cs, which may not be possible
in case of brownfield deployments (deploying NVO tunnels over existing IP-c=
ore network).


Regards,
Saumya.


From: "Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com<mailto:naikuma=
r@cisco.com>>
Date: Monday, July 4, 2016 at 4:39 PM
To: sadikshi <sadikshi@cisco.com<mailto:sadikshi@cisco.com>>, Gregory Mirsk=
y <gregory.mirsky@ericsson.com<mailto:gregory.mirsky@ericsson.com>>, "BIER =
(bier@ietf.org<mailto:bier@ietf.org>)" <bier@ietf.org<mailto:bier@ietf.org>=
>, "sfc@ietf.org<mailto:sfc@ietf.org>" <sfc@ietf.org<mailto:sfc@ietf.org>>,=
 "nvo3@ietf.org<mailto:nvo3@ietf.org>" <nvo3@ietf.org<mailto:nvo3@ietf.org>=
>, "rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>" <rtg-ooam-dt@ietf.or=
g<mailto:rtg-ooam-dt@ietf.org>>, "rtgwg@ietf.org<mailto:rtgwg@ietf.org>" <r=
tgwg@ietf.org<mailto:rtgwg@ietf.org>>
Cc: "rbonica@juniper.net<mailto:rbonica@juniper.net>" <rbonica@juniper.net<=
mailto:rbonica@juniper.net>>
Subject: Re: [Bier] [nvo3] Comments to OOAM Requirements draft from Ron Bon=
ica

HI Saumya,

Please see inline..

Hi Greg,

I have following queries on  Overlay OAM Requirements<https://tools.ietf.or=
g/html/draft-ooamdt-rtgwg-ooam-requirement-00>:


>>>>> REQ#6:  Overlay OAM packets SHOULD be fate sharing with data traffic,
            i.e. in-band with the monitored traffic, i.e. follow exactly
            the same path as data plane traffic, in forward direction,
            i.e. from ingress toward egress end point(s) of the OAM test
            session.

=93Exactly same path=94, should be made explicit if it=92s referring to the=
 underlay transport path.

<Nagendra> Yes, that is the intention. We will clarify it.

"OAM packets SHOULD be fate sharing with data traffic=94 will not apply to =
"REQ#3:  centralized controller=94.
I think =93SHOULD=94 should be treated as a =93MUST=94 if the reference is =
within the document :)



>>>>> REQ#11: Overlay OAM MUST support fault localization of Loss of
            Continuity check.

Does the =93localization=94 maps to overlay node/link context ? Can we have=
 a =93MAY=94 requirement for mapping
it to underlay. Since in datacenter, with more of east-west traffic, there =
might be deployment requirement
to narrow down to underlay for a speedier fault management.

<Nagendra> MAY statement sounds reasonable.

REQ#22 =97 REQ#25 refer to =93per-segment=94.
A =93segment=94 maps to a NVO-tunnel?

<Nagendra> Yes, a segment referes to NVO tunnel between NVEs. Multiple such=
 segments may comprise an end-to-end tunnel.

 Shouldn=92t there be on a  per-VNI basis as well.

<Nagendra>I think  the granularity should definitely at per-VNI level.


>>>>> REQ#7:  Overlay OAM MUST support bi-directional OAM methods.  Such
            OAM methods MAY combine in-band monitoring or measurement in
            forward direction and out-of-band notification in the
            reverse direction, i.e. from egress to ingress end point of
            the OAM test session.

In case of optical deployments like, fiber management (both request and res=
ponse) can be out-of-band, hence may
need a mention here.
<Nagendra> I see. We will check this.

Thanks for your comments.

Regards,
Nagendra


Thanks
Saumya

From: nvo3 <nvo3-bounces@ietf.org<mailto:nvo3-bounces@ietf.org>> on behalf =
of Gregory Mirsky <gregory.mirsky@ericsson.com<mailto:gregory.mirsky@ericss=
on.com>>
Date: Tuesday, April 5, 2016 at 1:39 AM
To: "BIER (bier@ietf.org<mailto:bier@ietf.org>)" <bier@ietf.org<mailto:bier=
@ietf.org>>, "sfc@ietf.org<mailto:sfc@ietf.org>" <sfc@ietf.org<mailto:sfc@i=
etf.org>>, "nvo3@ietf.org<mailto:nvo3@ietf.org>" <nvo3@ietf.org<mailto:nvo3=
@ietf.org>>, "rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>" <rtg-ooam-=
dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>>, "rtgwg@ietf.org<mailto:rtgwg@iet=
f.org>" <rtgwg@ietf.org<mailto:rtgwg@ietf.org>>
Cc: "rbonica@juniper.net<mailto:rbonica@juniper.net>" <rbonica@juniper.net<=
mailto:rbonica@juniper.net>>
Subject: [nvo3] Comments to OOAM Requirements draft from Ron Bonica

Dear All,
Ron reviewed the Overlay OAM Requirements<https://tools.ietf.org/html/draft=
-ooamdt-rtgwg-ooam-requirement-00> draft and shared his comments under RB> =
tag. The attached copy has my responses in under GIM> tag as well. We invit=
e members of BIER, NVO3, SCC and RTG WGs to join in the discussion. Appreci=
ate you review, comments on OOAM Requirements draft and OAM for Overlay Net=
works: Gap Analysis.

                Regards,
                                Greg

--_000_D3B71C496BA4Csadikshiciscocom_
Content-Type: text/html; charset="Windows-1252"
Content-ID: <F331029355ADE4488B948F6A3EAB5E39@emea.cisco.com>
Content-Transfer-Encoding: quoted-printable

<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3DWindows-1=
252">
</head>
<body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-lin=
e-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-fami=
ly: Calibri, sans-serif;">
<div>Thanks Deepak. I think we should also new define TLVs in&nbsp;<span st=
yle=3D"background-color: rgb(255, 253, 245); font-family: 'PT Mono', Monaco=
, monospace; line-height: 16px; widows: 1;">draft-ooamdt-rtgwg-ooam-header<=
/span>&nbsp;or any alternative publication addressing
 the requirement.</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div style=3D"font-family:Calibri; font-size:11pt; text-align:left; color:b=
lack; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM:=
 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid;=
 BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<span style=3D"font-weight:bold">From: </span>&quot;Deepak Kumar (dekumar)&=
quot; &lt;<a href=3D"mailto:dekumar@cisco.com">dekumar@cisco.com</a>&gt;<br=
>
<span style=3D"font-weight:bold">Date: </span>Friday, July 22, 2016 at 12:0=
7 AM<br>
<span style=3D"font-weight:bold">To: </span>sadikshi &lt;<a href=3D"mailto:=
sadikshi@cisco.com">sadikshi@cisco.com</a>&gt;, &quot;Nagendra Kumar Nainar=
 (naikumar)&quot; &lt;<a href=3D"mailto:naikumar@cisco.com">naikumar@cisco.=
com</a>&gt;, Gregory Mirsky &lt;<a href=3D"mailto:gregory.mirsky@ericsson.c=
om">gregory.mirsky@ericsson.com</a>&gt;,
 &quot;BIER (<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>)&quot; &lt;=
<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>&gt;, &quot;<a href=3D"ma=
ilto:sfc@ietf.org">sfc@ietf.org</a>&quot; &lt;<a href=3D"mailto:sfc@ietf.or=
g">sfc@ietf.org</a>&gt;, &quot;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.o=
rg</a>&quot;
 &lt;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&gt;, &quot;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&quot; &lt;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&gt;, &quot;<a hre=
f=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&quot; &lt;<a href=3D"mailto:=
rtgwg@ietf.org">rtgwg@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:rbonica=
@juniper.net">rbonica@juniper.net</a>&quot; &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>Re: [Rtg-ooam-dt] [nvo3] [=
Bier] Comments to OOAM Requirements draft from Ron Bonica<br>
</div>
<div><br>
</div>
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div>Hi,</div>
<div><br>
</div>
<div>Below requirement looks like deal with ability of OAM to be extensible=
. We should add requirement regarding Extensibility for OAM protocol withou=
t adding details of VNI, etc.</div>
<div><br>
</div>
<div>Thanks,</div>
<div>Deepak</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div style=3D"font-family:Calibri; font-size:11pt; text-align:left; color:b=
lack; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM:=
 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid;=
 BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<span style=3D"font-weight:bold">From: </span>Rtg-ooam-dt &lt;<a href=3D"ma=
ilto:rtg-ooam-dt-bounces@ietf.org">rtg-ooam-dt-bounces@ietf.org</a>&gt; on =
behalf of &quot;Saumya Dikshit (sadikshi)&quot; &lt;<a href=3D"mailto:sadik=
shi@cisco.com">sadikshi@cisco.com</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Wednesday, July 20, 2016 at 6=
:03 AM<br>
<span style=3D"font-weight:bold">To: </span>&quot;Saumya Dikshit (sadikshi)=
&quot; &lt;<a href=3D"mailto:sadikshi@cisco.com">sadikshi@cisco.com</a>&gt;=
, &quot;Nagendra Kumar Nainar (naikumar)&quot; &lt;<a href=3D"mailto:naikum=
ar@cisco.com">naikumar@cisco.com</a>&gt;, Gregory Mirsky &lt;<a href=3D"mai=
lto:gregory.mirsky@ericsson.com">gregory.mirsky@ericsson.com</a>&gt;,
 &quot;BIER (<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>)&quot; &lt;=
<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>&gt;, &quot;<a href=3D"ma=
ilto:sfc@ietf.org">sfc@ietf.org</a>&quot; &lt;<a href=3D"mailto:sfc@ietf.or=
g">sfc@ietf.org</a>&gt;, &quot;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.o=
rg</a>&quot;
 &lt;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&gt;, &quot;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&quot; &lt;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&gt;, &quot;<a hre=
f=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&quot; &lt;<a href=3D"mailto:=
rtgwg@ietf.org">rtgwg@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:rbonica=
@juniper.net">rbonica@juniper.net</a>&quot; &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>Re: [Rtg-ooam-dt] [nvo3] [=
Bier] Comments to OOAM Requirements draft from Ron Bonica<br>
</div>
<div><br>
</div>
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div>Hi Greg, Authors of ooam-dt set of drafts</div>
<div><br>
</div>
<div>Other than current requirements, it will be great to explicitly suppor=
t the OAM PDU semantics.&nbsp;</div>
<ul>
<li>apply OAM function_set to group of VNI or band of VNI=92s and this info=
rmation carried in same OAM PDU. Although the response can be discrete on a=
 per VNI basis based on how and where the response is triggered from. If It=
=92s proxy from remote NVE, then the
 response can be a replication to the request. This is will reduce the numb=
er of probes which need to be send to perform the OAM functions.</li><li>It=
 will be great to designate VNI=92s as L2 or L3 and apply function_Set to t=
hem. This is implicitly derived in data-path, but for OAM PDUs, it will hel=
p to make it explicit either via using some flags or some other semantics. =
Hence we can carry bunch of
 L2 and L3 vnis with corresponding function-set</li></ul>
<div>In case these are valid requirements, which I feel they are. Can they =
find a place in existing document.</div>
<div>I can also come out with a peripheral draft defining these.&nbsp;</div=
>
<div><br>
</div>
<div>Thanks</div>
<div>Saumya.</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div style=3D"font-family:Calibri; font-size:11pt; text-align:left; color:b=
lack; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM:=
 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid;=
 BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<span style=3D"font-weight:bold">From: </span>nvo3 &lt;<a href=3D"mailto:nv=
o3-bounces@ietf.org">nvo3-bounces@ietf.org</a>&gt; on behalf of sadikshi &l=
t;<a href=3D"mailto:sadikshi@cisco.com">sadikshi@cisco.com</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Monday, July 4, 2016 at 8:09 =
PM<br>
<span style=3D"font-weight:bold">To: </span>&quot;Nagendra Kumar Nainar (na=
ikumar)&quot; &lt;<a href=3D"mailto:naikumar@cisco.com">naikumar@cisco.com<=
/a>&gt;, Gregory Mirsky &lt;<a href=3D"mailto:gregory.mirsky@ericsson.com">=
gregory.mirsky@ericsson.com</a>&gt;, &quot;BIER (<a href=3D"mailto:bier@iet=
f.org">bier@ietf.org</a>)&quot;
 &lt;<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>&gt;, &quot;<a href=
=3D"mailto:sfc@ietf.org">sfc@ietf.org</a>&quot; &lt;<a href=3D"mailto:sfc@i=
etf.org">sfc@ietf.org</a>&gt;, &quot;<a href=3D"mailto:nvo3@ietf.org">nvo3@=
ietf.org</a>&quot; &lt;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&g=
t;, &quot;<a href=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&=
quot;
 &lt;<a href=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&gt;, =
&quot;<a href=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&quot; &lt;<a hre=
f=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:rbonica=
@juniper.net">rbonica@juniper.net</a>&quot; &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>Re: [nvo3] [Bier] Comments=
 to OOAM Requirements draft from Ron Bonica<br>
</div>
<div><br>
</div>
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div>Hi Nagendra,</div>
<div><br>
</div>
<div>Thanks for the response. I missed this one in the below email:</div>
<div><br>
</div>
<div>
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;"><i>&gt;&gt;&gt;&gt;&gt; REQ#14: Overlay OAM MUS=
T have the ability to discover and exercise
            equal cost multipath (ECMP) paths in its transport network.</i>=
</pre>
</div>
<div><br>
</div>
<div>This will require the underlay nodes/router/switches to support OAM se=
mantics, which may not be possible&nbsp;</div>
<div>in case of brownfield deployments (deploying NVO tunnels over existing=
 IP-core network).&nbsp;</div>
<div><br>
</div>
<div><br>
</div>
<div>Regards,</div>
<div>Saumya.</div>
<div><br>
</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div style=3D"font-family:Calibri; font-size:11pt; text-align:left; color:b=
lack; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM:=
 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid;=
 BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<span style=3D"font-weight:bold">From: </span>&quot;Nagendra Kumar Nainar (=
naikumar)&quot; &lt;<a href=3D"mailto:naikumar@cisco.com">naikumar@cisco.co=
m</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Monday, July 4, 2016 at 4:39 =
PM<br>
<span style=3D"font-weight:bold">To: </span>sadikshi &lt;<a href=3D"mailto:=
sadikshi@cisco.com">sadikshi@cisco.com</a>&gt;, Gregory Mirsky &lt;<a href=
=3D"mailto:gregory.mirsky@ericsson.com">gregory.mirsky@ericsson.com</a>&gt;=
, &quot;BIER (<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>)&quot;
 &lt;<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>&gt;, &quot;<a href=
=3D"mailto:sfc@ietf.org">sfc@ietf.org</a>&quot; &lt;<a href=3D"mailto:sfc@i=
etf.org">sfc@ietf.org</a>&gt;, &quot;<a href=3D"mailto:nvo3@ietf.org">nvo3@=
ietf.org</a>&quot; &lt;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&g=
t;, &quot;<a href=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&=
quot;
 &lt;<a href=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&gt;, =
&quot;<a href=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&quot; &lt;<a hre=
f=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:rbonica=
@juniper.net">rbonica@juniper.net</a>&quot; &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>Re: [Bier] [nvo3] Comments=
 to OOAM Requirements draft from Ron Bonica<br>
</div>
<div><br>
</div>
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div>HI Saumya,</div>
<div><br>
</div>
<div>Please see inline..</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Hi Greg,</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
I have following queries on&nbsp;<span style=3D"font-size: 15px;">&nbsp;</s=
pan><a href=3D"https://tools.ietf.org/html/draft-ooamdt-rtgwg-ooam-requirem=
ent-00" style=3D"font-size: 15px;">Overlay OAM Requirements</a>:</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;">&gt;&gt;&gt;&gt;&gt; <i>REQ#6:  Overlay OAM pac=
kets SHOULD be fate sharing with data traffic,
            i.e. in-band with the monitored traffic, i.e. follow exactly
            the same path as data plane traffic, in forward direction,
            i.e. from ingress toward egress end point(s) of the OAM test
            session.</i></pre>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
=93Exactly same path=94, should be made explicit if it=92s referring to the=
 underlay transport path.</div>
</div>
</div>
</span>
<div><br>
</div>
<div>&lt;Nagendra&gt; Yes, that is the intention. We will clarify it.</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<font face=3D"Calibri,sans-serif" style=3D"widows: 1;">&quot;</font><span s=
tyle=3D"widows: 1;"><font face=3D"Calibri,sans-serif"><span style=3D"font-s=
tyle: italic; font-size: 13.3333px;">OAM packets SHOULD be fate sharing wit=
h data traffic</span><span style=3D"font-style: italic; font-size: 13px;">=
=94</span><span style=3D"font-size: 13.3333px;"><i>&nbsp;</i>will
 not apply to &quot;</span></font></span><i style=3D"widows: 1;"><span styl=
e=3D"font-size: 13.3333px;">REQ#3: &nbsp;</span><span style=3D"font-size: 1=
3.3333px;">centralized controller</span><span style=3D"font-size: 13px;">=
=94</span><span style=3D"font-size: 13.3333px;">.</span></i></div>
<div style=3D"widows: 1;">I think =93SHOULD=94 should be treated as a =93MU=
ST=94 if the reference is within the document :)</div>
</div>
</div>
</span>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;"><i>&gt;&gt;&gt;&gt;&gt; REQ#11: Overlay OAM MUS=
T support fault localization of Loss of
            Continuity check.</i></pre>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Does the =93localization=94 maps to overlay node/link context ? Can we have=
 a =93MAY=94 requirement for mapping</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
it to underlay. Since in datacenter, with more of east-west traffic, there =
might be deployment requirement</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
to narrow down to underlay for a speedier fault management.</div>
</div>
</div>
</span>
<div><br>
</div>
<div>&lt;Nagendra&gt; MAY statement sounds reasonable.</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
REQ#22 =97 REQ#25 refer to =93per-segment=94.&nbsp;</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
A =93segment=94 maps to a NVO-tunnel?&nbsp;</div>
</div>
</div>
</span>
<div><br>
</div>
<div>&lt;Nagendra&gt; Yes, a segment referes to NVO tunnel between NVEs. Mu=
ltiple such segments may comprise an end-to-end tunnel.</div>
<div><br>
</div>
<div>&nbsp;Shouldn=92t there be on a &nbsp;per-VNI basis as well.</div>
<div><br>
</div>
<div>&lt;Nagendra&gt;I think &nbsp;the granularity should definitely at per=
-VNI level.&nbsp;</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;"><i>&gt;&gt;&gt;&gt;&gt; REQ#7:  Overlay OAM MUS=
T support bi-directional OAM methods.  Such
            OAM methods MAY combine in-band monitoring or measurement in
            forward direction and out-of-band notification in the
            reverse direction, i.e. from egress to ingress end point of
            the OAM test session.</i></pre>
<div><br>
</div>
<div>In case of optical deployments like, fiber management (both request an=
d response) can be out-of-band, hence may</div>
<div>need a mention here.&nbsp;</div>
</div>
</div>
</div>
</span>
<div>&lt;Nagendra&gt; I see. We will check this.</div>
<div><br>
</div>
<div>Thanks for your comments.</div>
<div><br>
</div>
<div>Regards,</div>
<div>Nagendra</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Thanks</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Saumya</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION" style=3D"color: rgb(0, 0, 0); font-family=
: Calibri, sans-serif; font-size: 14px;">
<div style=3D"font-family:Calibri; font-size:11pt; text-align:left; color:b=
lack; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM:=
 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid;=
 BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<span style=3D"font-weight:bold">From: </span>nvo3 &lt;<a href=3D"mailto:nv=
o3-bounces@ietf.org">nvo3-bounces@ietf.org</a>&gt; on behalf of Gregory Mir=
sky &lt;<a href=3D"mailto:gregory.mirsky@ericsson.com">gregory.mirsky@erics=
son.com</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Tuesday, April 5, 2016 at 1:3=
9 AM<br>
<span style=3D"font-weight:bold">To: </span>&quot;BIER (<a href=3D"mailto:b=
ier@ietf.org">bier@ietf.org</a>)&quot; &lt;<a href=3D"mailto:bier@ietf.org"=
>bier@ietf.org</a>&gt;, &quot;<a href=3D"mailto:sfc@ietf.org">sfc@ietf.org<=
/a>&quot; &lt;<a href=3D"mailto:sfc@ietf.org">sfc@ietf.org</a>&gt;, &quot;<=
a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&quot;
 &lt;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&gt;, &quot;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&quot; &lt;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&gt;, &quot;<a hre=
f=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&quot; &lt;<a href=3D"mailto:=
rtgwg@ietf.org">rtgwg@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:rbonica=
@juniper.net">rbonica@juniper.net</a>&quot; &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>[nvo3] Comments to OOAM Re=
quirements draft from Ron Bonica<br>
</div>
<div><br>
</div>
<div xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micro=
soft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" x=
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<div lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal">Dear All,<o:p></o:p></p>
<p class=3D"MsoNormal">Ron reviewed the <a href=3D"https://tools.ietf.org/h=
tml/draft-ooamdt-rtgwg-ooam-requirement-00">
Overlay OAM Requirements</a> draft and shared his comments under RB&gt; tag=
. The attached copy has my responses in under GIM&gt; tag as well. We invit=
e members of BIER, NVO3, SCC and RTG WGs to join in the discussion. Appreci=
ate you review, comments on OOAM Requirements
 draft and OAM for Overlay Networks: Gap Analysis.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Regards,<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Greg<o:p></o:p>=
</p>
</div>
</div>
</div>
</span></div>
</div>
</span></div>
</div>
</span></div>
</div>
</span></div>
</div>
</span></div>
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--_000_D3B71C496BA4Csadikshiciscocom_--


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From: "Saumya Dikshit (sadikshi)" <sadikshi@cisco.com>
To: "Saumya Dikshit (sadikshi)" <sadikshi@cisco.com>, "Deepak Kumar (dekumar)" <dekumar@cisco.com>, "Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com>, Gregory Mirsky <gregory.mirsky@ericsson.com>, "BIER (bier@ietf.org)" <bier@ietf.org>, "sfc@ietf.org" <sfc@ietf.org>, "nvo3@ietf.org" <nvo3@ietf.org>, "rtg-ooam-dt@ietf.org" <rtg-ooam-dt@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: Re: [Rtg-ooam-dt] [nvo3] [Bier] Comments to OOAM Requirements draft from Ron Bonica
Thread-Topic: [Rtg-ooam-dt] [nvo3] [Bier] Comments to OOAM Requirements draft from Ron Bonica
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References: <D3A02275.68F4D%sadikshi@cisco.com> <D39FBA41.16A342%naikumar@cisco.com> <D3A0A205.68FC7%sadikshi@cisco.com> <D3B540DB.6B713%sadikshi@cisco.com> <D3B69225.19326%dekumar@cisco.com> <D3B71C49.6BA4C%sadikshi@cisco.com>
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--_000_D3BF0C676C0F3sadikshiciscocom_
Content-Type: text/plain; charset="Windows-1252"
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Hello Authors,

Please do know your views on having these requirements as part of the docum=
ent, as deepak also mentioned in the below format.

Thanks
Saumya.

From: rtgwg <rtgwg-bounces@ietf.org<mailto:rtgwg-bounces@ietf.org>> on beha=
lf of sadikshi <sadikshi@cisco.com<mailto:sadikshi@cisco.com>>
Date: Friday, July 22, 2016 at 12:44 AM
To: "Deepak Kumar (dekumar)" <dekumar@cisco.com<mailto:dekumar@cisco.com>>,=
 "Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com<mailto:naikumar@cis=
co.com>>, Gregory Mirsky <gregory.mirsky@ericsson.com<mailto:gregory.mirsky=
@ericsson.com>>, "BIER (bier@ietf.org<mailto:bier@ietf.org>)" <bier@ietf.or=
g<mailto:bier@ietf.org>>, "sfc@ietf.org<mailto:sfc@ietf.org>" <sfc@ietf.org=
<mailto:sfc@ietf.org>>, "nvo3@ietf.org<mailto:nvo3@ietf.org>" <nvo3@ietf.or=
g<mailto:nvo3@ietf.org>>, "rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.org=
>" <rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>>, "rtgwg@ietf.org<mai=
lto:rtgwg@ietf.org>" <rtgwg@ietf.org<mailto:rtgwg@ietf.org>>
Cc: "rbonica@juniper.net<mailto:rbonica@juniper.net>" <rbonica@juniper.net<=
mailto:rbonica@juniper.net>>
Subject: Re: [Rtg-ooam-dt] [nvo3] [Bier] Comments to OOAM Requirements draf=
t from Ron Bonica

Thanks Deepak. I think we should also new define TLVs in draft-ooamdt-rtgwg=
-ooam-header or any alternative publication addressing the requirement.

From: "Deepak Kumar (dekumar)" <dekumar@cisco.com<mailto:dekumar@cisco.com>=
>
Date: Friday, July 22, 2016 at 12:07 AM
To: sadikshi <sadikshi@cisco.com<mailto:sadikshi@cisco.com>>, "Nagendra Kum=
ar Nainar (naikumar)" <naikumar@cisco.com<mailto:naikumar@cisco.com>>, Greg=
ory Mirsky <gregory.mirsky@ericsson.com<mailto:gregory.mirsky@ericsson.com>=
>, "BIER (bier@ietf.org<mailto:bier@ietf.org>)" <bier@ietf.org<mailto:bier@=
ietf.org>>, "sfc@ietf.org<mailto:sfc@ietf.org>" <sfc@ietf.org<mailto:sfc@ie=
tf.org>>, "nvo3@ietf.org<mailto:nvo3@ietf.org>" <nvo3@ietf.org<mailto:nvo3@=
ietf.org>>, "rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>" <rtg-ooam-d=
t@ietf.org<mailto:rtg-ooam-dt@ietf.org>>, "rtgwg@ietf.org<mailto:rtgwg@ietf=
.org>" <rtgwg@ietf.org<mailto:rtgwg@ietf.org>>
Cc: "rbonica@juniper.net<mailto:rbonica@juniper.net>" <rbonica@juniper.net<=
mailto:rbonica@juniper.net>>
Subject: Re: [Rtg-ooam-dt] [nvo3] [Bier] Comments to OOAM Requirements draf=
t from Ron Bonica

Hi,

Below requirement looks like deal with ability of OAM to be extensible. We =
should add requirement regarding Extensibility for OAM protocol without add=
ing details of VNI, etc.

Thanks,
Deepak

From: Rtg-ooam-dt <rtg-ooam-dt-bounces@ietf.org<mailto:rtg-ooam-dt-bounces@=
ietf.org>> on behalf of "Saumya Dikshit (sadikshi)" <sadikshi@cisco.com<mai=
lto:sadikshi@cisco.com>>
Date: Wednesday, July 20, 2016 at 6:03 AM
To: "Saumya Dikshit (sadikshi)" <sadikshi@cisco.com<mailto:sadikshi@cisco.c=
om>>, "Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com<mailto:naikuma=
r@cisco.com>>, Gregory Mirsky <gregory.mirsky@ericsson.com<mailto:gregory.m=
irsky@ericsson.com>>, "BIER (bier@ietf.org<mailto:bier@ietf.org>)" <bier@ie=
tf.org<mailto:bier@ietf.org>>, "sfc@ietf.org<mailto:sfc@ietf.org>" <sfc@iet=
f.org<mailto:sfc@ietf.org>>, "nvo3@ietf.org<mailto:nvo3@ietf.org>" <nvo3@ie=
tf.org<mailto:nvo3@ietf.org>>, "rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@iet=
f.org>" <rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>>, "rtgwg@ietf.or=
g<mailto:rtgwg@ietf.org>" <rtgwg@ietf.org<mailto:rtgwg@ietf.org>>
Cc: "rbonica@juniper.net<mailto:rbonica@juniper.net>" <rbonica@juniper.net<=
mailto:rbonica@juniper.net>>
Subject: Re: [Rtg-ooam-dt] [nvo3] [Bier] Comments to OOAM Requirements draf=
t from Ron Bonica

Hi Greg, Authors of ooam-dt set of drafts

Other than current requirements, it will be great to explicitly support the=
 OAM PDU semantics.

  *   apply OAM function_set to group of VNI or band of VNI=92s and this in=
formation carried in same OAM PDU. Although the response can be discrete on=
 a per VNI basis based on how and where the response is triggered from. If =
It=92s proxy from remote NVE, then the response can be a replication to the=
 request. This is will reduce the number of probes which need to be send to=
 perform the OAM functions.
  *   It will be great to designate VNI=92s as L2 or L3 and apply function_=
Set to them. This is implicitly derived in data-path, but for OAM PDUs, it =
will help to make it explicit either via using some flags or some other sem=
antics. Hence we can carry bunch of L2 and L3 vnis with corresponding funct=
ion-set

In case these are valid requirements, which I feel they are. Can they find =
a place in existing document.
I can also come out with a peripheral draft defining these.

Thanks
Saumya.

From: nvo3 <nvo3-bounces@ietf.org<mailto:nvo3-bounces@ietf.org>> on behalf =
of sadikshi <sadikshi@cisco.com<mailto:sadikshi@cisco.com>>
Date: Monday, July 4, 2016 at 8:09 PM
To: "Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com<mailto:naikumar@=
cisco.com>>, Gregory Mirsky <gregory.mirsky@ericsson.com<mailto:gregory.mir=
sky@ericsson.com>>, "BIER (bier@ietf.org<mailto:bier@ietf.org>)" <bier@ietf=
.org<mailto:bier@ietf.org>>, "sfc@ietf.org<mailto:sfc@ietf.org>" <sfc@ietf.=
org<mailto:sfc@ietf.org>>, "nvo3@ietf.org<mailto:nvo3@ietf.org>" <nvo3@ietf=
.org<mailto:nvo3@ietf.org>>, "rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.=
org>" <rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>>, "rtgwg@ietf.org<=
mailto:rtgwg@ietf.org>" <rtgwg@ietf.org<mailto:rtgwg@ietf.org>>
Cc: "rbonica@juniper.net<mailto:rbonica@juniper.net>" <rbonica@juniper.net<=
mailto:rbonica@juniper.net>>
Subject: Re: [nvo3] [Bier] Comments to OOAM Requirements draft from Ron Bon=
ica

Hi Nagendra,

Thanks for the response. I missed this one in the below email:


>>>>> REQ#14: Overlay OAM MUST have the ability to discover and exercise
            equal cost multipath (ECMP) paths in its transport network.

This will require the underlay nodes/router/switches to support OAM semanti=
cs, which may not be possible
in case of brownfield deployments (deploying NVO tunnels over existing IP-c=
ore network).


Regards,
Saumya.


From: "Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com<mailto:naikuma=
r@cisco.com>>
Date: Monday, July 4, 2016 at 4:39 PM
To: sadikshi <sadikshi@cisco.com<mailto:sadikshi@cisco.com>>, Gregory Mirsk=
y <gregory.mirsky@ericsson.com<mailto:gregory.mirsky@ericsson.com>>, "BIER =
(bier@ietf.org<mailto:bier@ietf.org>)" <bier@ietf.org<mailto:bier@ietf.org>=
>, "sfc@ietf.org<mailto:sfc@ietf.org>" <sfc@ietf.org<mailto:sfc@ietf.org>>,=
 "nvo3@ietf.org<mailto:nvo3@ietf.org>" <nvo3@ietf.org<mailto:nvo3@ietf.org>=
>, "rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>" <rtg-ooam-dt@ietf.or=
g<mailto:rtg-ooam-dt@ietf.org>>, "rtgwg@ietf.org<mailto:rtgwg@ietf.org>" <r=
tgwg@ietf.org<mailto:rtgwg@ietf.org>>
Cc: "rbonica@juniper.net<mailto:rbonica@juniper.net>" <rbonica@juniper.net<=
mailto:rbonica@juniper.net>>
Subject: Re: [Bier] [nvo3] Comments to OOAM Requirements draft from Ron Bon=
ica

HI Saumya,

Please see inline..

Hi Greg,

I have following queries on  Overlay OAM Requirements<https://tools.ietf.or=
g/html/draft-ooamdt-rtgwg-ooam-requirement-00>:


>>>>> REQ#6:  Overlay OAM packets SHOULD be fate sharing with data traffic,
            i.e. in-band with the monitored traffic, i.e. follow exactly
            the same path as data plane traffic, in forward direction,
            i.e. from ingress toward egress end point(s) of the OAM test
            session.

=93Exactly same path=94, should be made explicit if it=92s referring to the=
 underlay transport path.

<Nagendra> Yes, that is the intention. We will clarify it.

"OAM packets SHOULD be fate sharing with data traffic=94 will not apply to =
"REQ#3:  centralized controller=94.
I think =93SHOULD=94 should be treated as a =93MUST=94 if the reference is =
within the document :)



>>>>> REQ#11: Overlay OAM MUST support fault localization of Loss of
            Continuity check.

Does the =93localization=94 maps to overlay node/link context ? Can we have=
 a =93MAY=94 requirement for mapping
it to underlay. Since in datacenter, with more of east-west traffic, there =
might be deployment requirement
to narrow down to underlay for a speedier fault management.

<Nagendra> MAY statement sounds reasonable.

REQ#22 =97 REQ#25 refer to =93per-segment=94.
A =93segment=94 maps to a NVO-tunnel?

<Nagendra> Yes, a segment referes to NVO tunnel between NVEs. Multiple such=
 segments may comprise an end-to-end tunnel.

 Shouldn=92t there be on a  per-VNI basis as well.

<Nagendra>I think  the granularity should definitely at per-VNI level.


>>>>> REQ#7:  Overlay OAM MUST support bi-directional OAM methods.  Such
            OAM methods MAY combine in-band monitoring or measurement in
            forward direction and out-of-band notification in the
            reverse direction, i.e. from egress to ingress end point of
            the OAM test session.

In case of optical deployments like, fiber management (both request and res=
ponse) can be out-of-band, hence may
need a mention here.
<Nagendra> I see. We will check this.

Thanks for your comments.

Regards,
Nagendra


Thanks
Saumya

From: nvo3 <nvo3-bounces@ietf.org<mailto:nvo3-bounces@ietf.org>> on behalf =
of Gregory Mirsky <gregory.mirsky@ericsson.com<mailto:gregory.mirsky@ericss=
on.com>>
Date: Tuesday, April 5, 2016 at 1:39 AM
To: "BIER (bier@ietf.org<mailto:bier@ietf.org>)" <bier@ietf.org<mailto:bier=
@ietf.org>>, "sfc@ietf.org<mailto:sfc@ietf.org>" <sfc@ietf.org<mailto:sfc@i=
etf.org>>, "nvo3@ietf.org<mailto:nvo3@ietf.org>" <nvo3@ietf.org<mailto:nvo3=
@ietf.org>>, "rtg-ooam-dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>" <rtg-ooam-=
dt@ietf.org<mailto:rtg-ooam-dt@ietf.org>>, "rtgwg@ietf.org<mailto:rtgwg@iet=
f.org>" <rtgwg@ietf.org<mailto:rtgwg@ietf.org>>
Cc: "rbonica@juniper.net<mailto:rbonica@juniper.net>" <rbonica@juniper.net<=
mailto:rbonica@juniper.net>>
Subject: [nvo3] Comments to OOAM Requirements draft from Ron Bonica

Dear All,
Ron reviewed the Overlay OAM Requirements<https://tools.ietf.org/html/draft=
-ooamdt-rtgwg-ooam-requirement-00> draft and shared his comments under RB> =
tag. The attached copy has my responses in under GIM> tag as well. We invit=
e members of BIER, NVO3, SCC and RTG WGs to join in the discussion. Appreci=
ate you review, comments on OOAM Requirements draft and OAM for Overlay Net=
works: Gap Analysis.

                Regards,
                                Greg

--_000_D3BF0C676C0F3sadikshiciscocom_
Content-Type: text/html; charset="Windows-1252"
Content-ID: <C0E773BD52C6654D90B84DCE57347A5E@emea.cisco.com>
Content-Transfer-Encoding: quoted-printable

<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3DWindows-1=
252">
</head>
<body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-lin=
e-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-fami=
ly: Calibri, sans-serif;">
<div>Hello Authors,</div>
<div><br>
</div>
<div>Please do know your views on having these requirements as part of the =
document, as deepak also mentioned in the below format.</div>
<div><br>
</div>
<div>Thanks</div>
<div>Saumya.</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div style=3D"font-family:Calibri; font-size:11pt; text-align:left; color:b=
lack; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM:=
 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid;=
 BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<span style=3D"font-weight:bold">From: </span>rtgwg &lt;<a href=3D"mailto:r=
tgwg-bounces@ietf.org">rtgwg-bounces@ietf.org</a>&gt; on behalf of sadikshi=
 &lt;<a href=3D"mailto:sadikshi@cisco.com">sadikshi@cisco.com</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Friday, July 22, 2016 at 12:4=
4 AM<br>
<span style=3D"font-weight:bold">To: </span>&quot;Deepak Kumar (dekumar)&qu=
ot; &lt;<a href=3D"mailto:dekumar@cisco.com">dekumar@cisco.com</a>&gt;, &qu=
ot;Nagendra Kumar Nainar (naikumar)&quot; &lt;<a href=3D"mailto:naikumar@ci=
sco.com">naikumar@cisco.com</a>&gt;, Gregory Mirsky &lt;<a href=3D"mailto:g=
regory.mirsky@ericsson.com">gregory.mirsky@ericsson.com</a>&gt;,
 &quot;BIER (<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>)&quot; &lt;=
<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>&gt;, &quot;<a href=3D"ma=
ilto:sfc@ietf.org">sfc@ietf.org</a>&quot; &lt;<a href=3D"mailto:sfc@ietf.or=
g">sfc@ietf.org</a>&gt;, &quot;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.o=
rg</a>&quot;
 &lt;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&gt;, &quot;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&quot; &lt;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&gt;, &quot;<a hre=
f=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&quot; &lt;<a href=3D"mailto:=
rtgwg@ietf.org">rtgwg@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:rbonica=
@juniper.net">rbonica@juniper.net</a>&quot; &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>Re: [Rtg-ooam-dt] [nvo3] [=
Bier] Comments to OOAM Requirements draft from Ron Bonica<br>
</div>
<div><br>
</div>
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div>Thanks Deepak. I think we should also new define TLVs in&nbsp;<span st=
yle=3D"background-color: rgb(255, 253, 245); font-family: 'PT Mono', Monaco=
, monospace; line-height: 16px; widows: 1;">draft-ooamdt-rtgwg-ooam-header<=
/span>&nbsp;or any alternative publication addressing
 the requirement.</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div style=3D"font-family:Calibri; font-size:11pt; text-align:left; color:b=
lack; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM:=
 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid;=
 BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<span style=3D"font-weight:bold">From: </span>&quot;Deepak Kumar (dekumar)&=
quot; &lt;<a href=3D"mailto:dekumar@cisco.com">dekumar@cisco.com</a>&gt;<br=
>
<span style=3D"font-weight:bold">Date: </span>Friday, July 22, 2016 at 12:0=
7 AM<br>
<span style=3D"font-weight:bold">To: </span>sadikshi &lt;<a href=3D"mailto:=
sadikshi@cisco.com">sadikshi@cisco.com</a>&gt;, &quot;Nagendra Kumar Nainar=
 (naikumar)&quot; &lt;<a href=3D"mailto:naikumar@cisco.com">naikumar@cisco.=
com</a>&gt;, Gregory Mirsky &lt;<a href=3D"mailto:gregory.mirsky@ericsson.c=
om">gregory.mirsky@ericsson.com</a>&gt;,
 &quot;BIER (<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>)&quot; &lt;=
<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>&gt;, &quot;<a href=3D"ma=
ilto:sfc@ietf.org">sfc@ietf.org</a>&quot; &lt;<a href=3D"mailto:sfc@ietf.or=
g">sfc@ietf.org</a>&gt;, &quot;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.o=
rg</a>&quot;
 &lt;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&gt;, &quot;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&quot; &lt;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&gt;, &quot;<a hre=
f=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&quot; &lt;<a href=3D"mailto:=
rtgwg@ietf.org">rtgwg@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:rbonica=
@juniper.net">rbonica@juniper.net</a>&quot; &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>Re: [Rtg-ooam-dt] [nvo3] [=
Bier] Comments to OOAM Requirements draft from Ron Bonica<br>
</div>
<div><br>
</div>
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div>Hi,</div>
<div><br>
</div>
<div>Below requirement looks like deal with ability of OAM to be extensible=
. We should add requirement regarding Extensibility for OAM protocol withou=
t adding details of VNI, etc.</div>
<div><br>
</div>
<div>Thanks,</div>
<div>Deepak</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div style=3D"font-family:Calibri; font-size:11pt; text-align:left; color:b=
lack; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM:=
 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid;=
 BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<span style=3D"font-weight:bold">From: </span>Rtg-ooam-dt &lt;<a href=3D"ma=
ilto:rtg-ooam-dt-bounces@ietf.org">rtg-ooam-dt-bounces@ietf.org</a>&gt; on =
behalf of &quot;Saumya Dikshit (sadikshi)&quot; &lt;<a href=3D"mailto:sadik=
shi@cisco.com">sadikshi@cisco.com</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Wednesday, July 20, 2016 at 6=
:03 AM<br>
<span style=3D"font-weight:bold">To: </span>&quot;Saumya Dikshit (sadikshi)=
&quot; &lt;<a href=3D"mailto:sadikshi@cisco.com">sadikshi@cisco.com</a>&gt;=
, &quot;Nagendra Kumar Nainar (naikumar)&quot; &lt;<a href=3D"mailto:naikum=
ar@cisco.com">naikumar@cisco.com</a>&gt;, Gregory Mirsky &lt;<a href=3D"mai=
lto:gregory.mirsky@ericsson.com">gregory.mirsky@ericsson.com</a>&gt;,
 &quot;BIER (<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>)&quot; &lt;=
<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>&gt;, &quot;<a href=3D"ma=
ilto:sfc@ietf.org">sfc@ietf.org</a>&quot; &lt;<a href=3D"mailto:sfc@ietf.or=
g">sfc@ietf.org</a>&gt;, &quot;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.o=
rg</a>&quot;
 &lt;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&gt;, &quot;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&quot; &lt;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&gt;, &quot;<a hre=
f=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&quot; &lt;<a href=3D"mailto:=
rtgwg@ietf.org">rtgwg@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:rbonica=
@juniper.net">rbonica@juniper.net</a>&quot; &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>Re: [Rtg-ooam-dt] [nvo3] [=
Bier] Comments to OOAM Requirements draft from Ron Bonica<br>
</div>
<div><br>
</div>
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div>Hi Greg, Authors of ooam-dt set of drafts</div>
<div><br>
</div>
<div>Other than current requirements, it will be great to explicitly suppor=
t the OAM PDU semantics.&nbsp;</div>
<ul>
<li>apply OAM function_set to group of VNI or band of VNI=92s and this info=
rmation carried in same OAM PDU. Although the response can be discrete on a=
 per VNI basis based on how and where the response is triggered from. If It=
=92s proxy from remote NVE, then the
 response can be a replication to the request. This is will reduce the numb=
er of probes which need to be send to perform the OAM functions.</li><li>It=
 will be great to designate VNI=92s as L2 or L3 and apply function_Set to t=
hem. This is implicitly derived in data-path, but for OAM PDUs, it will hel=
p to make it explicit either via using some flags or some other semantics. =
Hence we can carry bunch of
 L2 and L3 vnis with corresponding function-set</li></ul>
<div>In case these are valid requirements, which I feel they are. Can they =
find a place in existing document.</div>
<div>I can also come out with a peripheral draft defining these.&nbsp;</div=
>
<div><br>
</div>
<div>Thanks</div>
<div>Saumya.</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div style=3D"font-family:Calibri; font-size:11pt; text-align:left; color:b=
lack; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM:=
 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid;=
 BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<span style=3D"font-weight:bold">From: </span>nvo3 &lt;<a href=3D"mailto:nv=
o3-bounces@ietf.org">nvo3-bounces@ietf.org</a>&gt; on behalf of sadikshi &l=
t;<a href=3D"mailto:sadikshi@cisco.com">sadikshi@cisco.com</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Monday, July 4, 2016 at 8:09 =
PM<br>
<span style=3D"font-weight:bold">To: </span>&quot;Nagendra Kumar Nainar (na=
ikumar)&quot; &lt;<a href=3D"mailto:naikumar@cisco.com">naikumar@cisco.com<=
/a>&gt;, Gregory Mirsky &lt;<a href=3D"mailto:gregory.mirsky@ericsson.com">=
gregory.mirsky@ericsson.com</a>&gt;, &quot;BIER (<a href=3D"mailto:bier@iet=
f.org">bier@ietf.org</a>)&quot;
 &lt;<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>&gt;, &quot;<a href=
=3D"mailto:sfc@ietf.org">sfc@ietf.org</a>&quot; &lt;<a href=3D"mailto:sfc@i=
etf.org">sfc@ietf.org</a>&gt;, &quot;<a href=3D"mailto:nvo3@ietf.org">nvo3@=
ietf.org</a>&quot; &lt;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&g=
t;, &quot;<a href=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&=
quot;
 &lt;<a href=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&gt;, =
&quot;<a href=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&quot; &lt;<a hre=
f=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:rbonica=
@juniper.net">rbonica@juniper.net</a>&quot; &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>Re: [nvo3] [Bier] Comments=
 to OOAM Requirements draft from Ron Bonica<br>
</div>
<div><br>
</div>
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div>Hi Nagendra,</div>
<div><br>
</div>
<div>Thanks for the response. I missed this one in the below email:</div>
<div><br>
</div>
<div>
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;"><i>&gt;&gt;&gt;&gt;&gt; REQ#14: Overlay OAM MUS=
T have the ability to discover and exercise
            equal cost multipath (ECMP) paths in its transport network.</i>=
</pre>
</div>
<div><br>
</div>
<div>This will require the underlay nodes/router/switches to support OAM se=
mantics, which may not be possible&nbsp;</div>
<div>in case of brownfield deployments (deploying NVO tunnels over existing=
 IP-core network).&nbsp;</div>
<div><br>
</div>
<div><br>
</div>
<div>Regards,</div>
<div>Saumya.</div>
<div><br>
</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div style=3D"font-family:Calibri; font-size:11pt; text-align:left; color:b=
lack; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM:=
 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid;=
 BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<span style=3D"font-weight:bold">From: </span>&quot;Nagendra Kumar Nainar (=
naikumar)&quot; &lt;<a href=3D"mailto:naikumar@cisco.com">naikumar@cisco.co=
m</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Monday, July 4, 2016 at 4:39 =
PM<br>
<span style=3D"font-weight:bold">To: </span>sadikshi &lt;<a href=3D"mailto:=
sadikshi@cisco.com">sadikshi@cisco.com</a>&gt;, Gregory Mirsky &lt;<a href=
=3D"mailto:gregory.mirsky@ericsson.com">gregory.mirsky@ericsson.com</a>&gt;=
, &quot;BIER (<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>)&quot;
 &lt;<a href=3D"mailto:bier@ietf.org">bier@ietf.org</a>&gt;, &quot;<a href=
=3D"mailto:sfc@ietf.org">sfc@ietf.org</a>&quot; &lt;<a href=3D"mailto:sfc@i=
etf.org">sfc@ietf.org</a>&gt;, &quot;<a href=3D"mailto:nvo3@ietf.org">nvo3@=
ietf.org</a>&quot; &lt;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&g=
t;, &quot;<a href=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&=
quot;
 &lt;<a href=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&gt;, =
&quot;<a href=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&quot; &lt;<a hre=
f=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:rbonica=
@juniper.net">rbonica@juniper.net</a>&quot; &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>Re: [Bier] [nvo3] Comments=
 to OOAM Requirements draft from Ron Bonica<br>
</div>
<div><br>
</div>
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div>HI Saumya,</div>
<div><br>
</div>
<div>Please see inline..</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Hi Greg,</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
I have following queries on&nbsp;<span style=3D"font-size: 15px;">&nbsp;</s=
pan><a href=3D"https://tools.ietf.org/html/draft-ooamdt-rtgwg-ooam-requirem=
ent-00" style=3D"font-size: 15px;">Overlay OAM Requirements</a>:</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;">&gt;&gt;&gt;&gt;&gt; <i>REQ#6:  Overlay OAM pac=
kets SHOULD be fate sharing with data traffic,
            i.e. in-band with the monitored traffic, i.e. follow exactly
            the same path as data plane traffic, in forward direction,
            i.e. from ingress toward egress end point(s) of the OAM test
            session.</i></pre>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
=93Exactly same path=94, should be made explicit if it=92s referring to the=
 underlay transport path.</div>
</div>
</div>
</span>
<div><br>
</div>
<div>&lt;Nagendra&gt; Yes, that is the intention. We will clarify it.</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<font face=3D"Calibri,sans-serif" style=3D"widows: 1;">&quot;</font><span s=
tyle=3D"widows: 1;"><font face=3D"Calibri,sans-serif"><span style=3D"font-s=
tyle: italic; font-size: 13.3333px;">OAM packets SHOULD be fate sharing wit=
h data traffic</span><span style=3D"font-style: italic; font-size: 13px;">=
=94</span><span style=3D"font-size: 13.3333px;"><i>&nbsp;</i>will
 not apply to &quot;</span></font></span><i style=3D"widows: 1;"><span styl=
e=3D"font-size: 13.3333px;">REQ#3: &nbsp;</span><span style=3D"font-size: 1=
3.3333px;">centralized controller</span><span style=3D"font-size: 13px;">=
=94</span><span style=3D"font-size: 13.3333px;">.</span></i></div>
<div style=3D"widows: 1;">I think =93SHOULD=94 should be treated as a =93MU=
ST=94 if the reference is within the document :)</div>
</div>
</div>
</span>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;"><i>&gt;&gt;&gt;&gt;&gt; REQ#11: Overlay OAM MUS=
T support fault localization of Loss of
            Continuity check.</i></pre>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Does the =93localization=94 maps to overlay node/link context ? Can we have=
 a =93MAY=94 requirement for mapping</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
it to underlay. Since in datacenter, with more of east-west traffic, there =
might be deployment requirement</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
to narrow down to underlay for a speedier fault management.</div>
</div>
</div>
</span>
<div><br>
</div>
<div>&lt;Nagendra&gt; MAY statement sounds reasonable.</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
REQ#22 =97 REQ#25 refer to =93per-segment=94.&nbsp;</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
A =93segment=94 maps to a NVO-tunnel?&nbsp;</div>
</div>
</div>
</span>
<div><br>
</div>
<div>&lt;Nagendra&gt; Yes, a segment referes to NVO tunnel between NVEs. Mu=
ltiple such segments may comprise an end-to-end tunnel.</div>
<div><br>
</div>
<div>&nbsp;Shouldn=92t there be on a &nbsp;per-VNI basis as well.</div>
<div><br>
</div>
<div>&lt;Nagendra&gt;I think &nbsp;the granularity should definitely at per=
-VNI level.&nbsp;</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<pre class=3D"newpage" style=3D"font-size: 13.3333px; margin-top: 0px; marg=
in-bottom: 0px; widows: 1;"><i>&gt;&gt;&gt;&gt;&gt; REQ#7:  Overlay OAM MUS=
T support bi-directional OAM methods.  Such
            OAM methods MAY combine in-band monitoring or measurement in
            forward direction and out-of-band notification in the
            reverse direction, i.e. from egress to ingress end point of
            the OAM test session.</i></pre>
<div><br>
</div>
<div>In case of optical deployments like, fiber management (both request an=
d response) can be out-of-band, hence may</div>
<div>need a mention here.&nbsp;</div>
</div>
</div>
</div>
</span>
<div>&lt;Nagendra&gt; I see. We will check this.</div>
<div><br>
</div>
<div>Thanks for your comments.</div>
<div><br>
</div>
<div>Regards,</div>
<div>Nagendra</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-famil=
y: Calibri, sans-serif;">
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Thanks</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Saumya</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION" style=3D"color: rgb(0, 0, 0); font-family=
: Calibri, sans-serif; font-size: 14px;">
<div style=3D"font-family:Calibri; font-size:11pt; text-align:left; color:b=
lack; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM:=
 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid;=
 BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<span style=3D"font-weight:bold">From: </span>nvo3 &lt;<a href=3D"mailto:nv=
o3-bounces@ietf.org">nvo3-bounces@ietf.org</a>&gt; on behalf of Gregory Mir=
sky &lt;<a href=3D"mailto:gregory.mirsky@ericsson.com">gregory.mirsky@erics=
son.com</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Tuesday, April 5, 2016 at 1:3=
9 AM<br>
<span style=3D"font-weight:bold">To: </span>&quot;BIER (<a href=3D"mailto:b=
ier@ietf.org">bier@ietf.org</a>)&quot; &lt;<a href=3D"mailto:bier@ietf.org"=
>bier@ietf.org</a>&gt;, &quot;<a href=3D"mailto:sfc@ietf.org">sfc@ietf.org<=
/a>&quot; &lt;<a href=3D"mailto:sfc@ietf.org">sfc@ietf.org</a>&gt;, &quot;<=
a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&quot;
 &lt;<a href=3D"mailto:nvo3@ietf.org">nvo3@ietf.org</a>&gt;, &quot;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&quot; &lt;<a href=
=3D"mailto:rtg-ooam-dt@ietf.org">rtg-ooam-dt@ietf.org</a>&gt;, &quot;<a hre=
f=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&quot; &lt;<a href=3D"mailto:=
rtgwg@ietf.org">rtgwg@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:rbonica=
@juniper.net">rbonica@juniper.net</a>&quot; &lt;<a href=3D"mailto:rbonica@j=
uniper.net">rbonica@juniper.net</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>[nvo3] Comments to OOAM Re=
quirements draft from Ron Bonica<br>
</div>
<div><br>
</div>
<div xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micro=
soft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" x=
mlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" xmlns=3D"http:/=
/www.w3.org/TR/REC-html40">
<meta name=3D"Generator" content=3D"Microsoft Word 14 (filtered medium)">
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<div lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal">Dear All,<o:p></o:p></p>
<p class=3D"MsoNormal">Ron reviewed the <a href=3D"https://tools.ietf.org/h=
tml/draft-ooamdt-rtgwg-ooam-requirement-00">
Overlay OAM Requirements</a> draft and shared his comments under RB&gt; tag=
. The attached copy has my responses in under GIM&gt; tag as well. We invit=
e members of BIER, NVO3, SCC and RTG WGs to join in the discussion. Appreci=
ate you review, comments on OOAM Requirements
 draft and OAM for Overlay Networks: Gap Analysis.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Regards,<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Greg<o:p></o:p>=
</p>
</div>
</div>
</div>
</span></div>
</div>
</span></div>
</div>
</span></div>
</div>
</span></div>
</div>
</span></div>
</div>
</span></div>
</div>
</span>
</body>
</html>

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