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From: Zhoutianran <zhoutianran@huawei.com>
To: "opsawg@ietf.org" <opsawg@ietf.org>
Thread-Topic: WG adoption poll for In-Situ OAM drafts 
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Subject: [OPSAWG] WG adoption poll for In-Situ OAM drafts
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10pt;">
<p>Hi All,</p>
<p>&nbsp;</p>
<p>In Seoul, we got enough interest on the In Situ OAM work and positive re=
sponse on related drafts.<br>
So this email starts a formal poll for adoption the following I-Ds.</p>
<p>&nbsp;</p>
<p><a href=3D"https://tools.ietf.org/html/draft-brockners-inband-oam-requir=
ements-02.txt">https://tools.ietf.org/html/draft-brockners-inband-oam-requi=
rements-02.txt</a><br>
<a href=3D"https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.t=
xt">https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.txt</a>
<br>
<a href=3D"https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.=
txt">https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.txt</a=
></p>
<p>&nbsp;</p>
<p>To be efficient, we have the poll for three I-Ds in one thread. But you =
can give your opinion on each of them. And the result is per I-D.</p>
<p>&nbsp;</p>
<p>The question is:<br>
Do you think that the WG should adopt all or some of these drafts?</p>
<p>&nbsp;</p>
<p>It would be helpful if you could indicate whether you have read the draf=
ts. If &quot;yes&quot;, would you like to review the drafts and help to imp=
rove the drafts? If &quot;no&quot;, it is important that you provide reason=
s.</p>
<p>&nbsp;</p>
<p>This poll will last for two weeks, ending on Tuesday, December 20.</p>
<p>&nbsp;<br>
Thanks,<br>
Tianran &amp; Warren</p>
</div>
</body>
</html>

--_000_BBA82579FD347748BEADC4C445EA0F21A22793F7NKGEML515MBXchi_--


From nobody Wed Dec  7 07:34:44 2016
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To: Zhoutianran <zhoutianran@huawei.com>, "opsawg@ietf.org" <opsawg@ietf.org>
References: <BBA82579FD347748BEADC4C445EA0F21A22793F7@NKGEML515-MBX.china.huawei.com>
From: Joe Clarke <jclarke@cisco.com>
Organization: Cisco Systems, Inc.
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Date: Wed, 7 Dec 2016 10:34:34 -0500
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Subject: Re: [OPSAWG] WG adoption poll for In-Situ OAM drafts
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On 12/7/16 01:36, Zhoutianran wrote:
> Hi All,
>
>
>
> In Seoul, we got enough interest on the In Situ OAM work and positive
> response on related drafts.
> So this email starts a formal poll for adoption the following I-Ds.
>
>
>
> https://tools.ietf.org/html/draft-brockners-inband-oam-requirements-02.txt
> https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.txt
> https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.txt
>
>
>
> To be efficient, we have the poll for three I-Ds in one thread. But you
> can give your opinion on each of them. And the result is per I-D.
>
>
>
> The question is:
> Do you think that the WG should adopt all or some of these drafts?

Yes, I support adoption of these drafts.  I think that perhaps PoT might 
fit better in opsec, but I have no strong objection to having all the 
work here.

>
>
>
> It would be helpful if you could indicate whether you have read the
> drafts. If "yes", would you like to review the drafts and help to
> improve the drafts? If "no", it is important that you provide reasons.

I have and I would be willing to help review.

Joe


From nobody Wed Dec  7 07:56:21 2016
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From: "Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com>
To: Zhoutianran <zhoutianran@huawei.com>, "opsawg@ietf.org" <opsawg@ietf.org>
Thread-Topic: [OPSAWG] WG adoption poll for In-Situ OAM drafts
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Hi,


Do you think that the WG should adopt all or some of these drafts?



Yes. I support the adoption of all 3 drafts as WG document.



It would be helpful if you could indicate whether you have read the drafts.=
 If "yes", would you like to review the drafts and help to improve the draf=
ts? If "no", it is important that you provide reasons.

Yes, I have read that and willing to review and improve.

Thanks,
Nagendra

From: OPSAWG <opsawg-bounces@ietf.org<mailto:opsawg-bounces@ietf.org>> on b=
ehalf of Zhoutianran <zhoutianran@huawei.com<mailto:zhoutianran@huawei.com>=
>
Date: Wednesday, December 7, 2016 at 1:36 AM
To: "opsawg@ietf.org<mailto:opsawg@ietf.org>" <opsawg@ietf.org<mailto:opsaw=
g@ietf.org>>
Cc: "opsawg-chairs@ietf.org<mailto:opsawg-chairs@ietf.org>" <opsawg-chairs@=
ietf.org<mailto:opsawg-chairs@ietf.org>>
Subject: [OPSAWG] WG adoption poll for In-Situ OAM drafts


Hi All,



In Seoul, we got enough interest on the In Situ OAM work and positive respo=
nse on related drafts.
So this email starts a formal poll for adoption the following I-Ds.



https://tools.ietf.org/html/draft-brockners-inband-oam-requirements-02.txt
https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.txt
https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.txt



To be efficient, we have the poll for three I-Ds in one thread. But you can=
 give your opinion on each of them. And the result is per I-D.



The question is:
Do you think that the WG should adopt all or some of these drafts?



It would be helpful if you could indicate whether you have read the drafts.=
 If "yes", would you like to review the drafts and help to improve the draf=
ts? If "no", it is important that you provide reasons.



This poll will last for two weeks, ending on Tuesday, December 20.


Thanks,
Tianran & Warren

--_000_D46D9A801B6252naikumarciscocom_
Content-Type: text/html; charset="us-ascii"
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<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dus-ascii"=
>
</head>
<body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -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>
<p style=3D"font-family: Tahoma; font-size: 13px;">Do you think that the WG=
 should adopt all or some of these drafts?</p>
<p style=3D"font-family: Tahoma; font-size: 13px;">&nbsp;</p>
<p style=3D"font-family: Tahoma; font-size: 13px;">Yes. I support the adopt=
ion of all 3 drafts as WG document.</p>
<p style=3D"font-family: Tahoma; font-size: 13px;">&nbsp;</p>
<p style=3D"font-family: Tahoma; font-size: 13px;">It would be helpful if y=
ou could indicate whether you have read the drafts. If &quot;yes&quot;, wou=
ld you like to review the drafts and help to improve the drafts? If &quot;n=
o&quot;, it is important that you provide reasons.</p>
</div>
<div><br>
</div>
<div>Yes, I have read that and willing to review and improve.</div>
<div><br>
</div>
<div>Thanks,</div>
<div>Nagendra</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>OPSAWG &lt;<a href=3D"mailto:=
opsawg-bounces@ietf.org">opsawg-bounces@ietf.org</a>&gt; on behalf of Zhout=
ianran &lt;<a href=3D"mailto:zhoutianran@huawei.com">zhoutianran@huawei.com=
</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Wednesday, December 7, 2016 a=
t 1:36 AM<br>
<span style=3D"font-weight:bold">To: </span>&quot;<a href=3D"mailto:opsawg@=
ietf.org">opsawg@ietf.org</a>&quot; &lt;<a href=3D"mailto:opsawg@ietf.org">=
opsawg@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:opsawg-=
chairs@ietf.org">opsawg-chairs@ietf.org</a>&quot; &lt;<a href=3D"mailto:ops=
awg-chairs@ietf.org">opsawg-chairs@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>[OPSAWG] WG adoption poll =
for In-Situ OAM drafts<br>
</div>
<div><br>
</div>
<div dir=3D"ltr">
<meta name=3D"GENERATOR" content=3D"MSHTML 11.00.9600.18427">
<style id=3D"owaParaStyle">P {
	MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px
}
</style>
<div fpstyle=3D"1" ocsi=3D"0">
<div style=3D"direction: ltr;font-family: Tahoma;color: #000000;font-size: =
10pt;">
<p>Hi All,</p>
<p>&nbsp;</p>
<p>In Seoul, we got enough interest on the In Situ OAM work and positive re=
sponse on related drafts.<br>
So this email starts a formal poll for adoption the following I-Ds.</p>
<p>&nbsp;</p>
<p><a href=3D"https://tools.ietf.org/html/draft-brockners-inband-oam-requir=
ements-02.txt">https://tools.ietf.org/html/draft-brockners-inband-oam-requi=
rements-02.txt</a><br>
<a href=3D"https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.t=
xt">https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.txt</a><=
br>
<a href=3D"https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.=
txt">https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.txt</a=
></p>
<p>&nbsp;</p>
<p>To be efficient, we have the poll for three I-Ds in one thread. But you =
can give your opinion on each of them. And the result is per I-D.</p>
<p>&nbsp;</p>
<p>The question is:<br>
Do you think that the WG should adopt all or some of these drafts?</p>
<p>&nbsp;</p>
<p>It would be helpful if you could indicate whether you have read the draf=
ts. If &quot;yes&quot;, would you like to review the drafts and help to imp=
rove the drafts? If &quot;no&quot;, it is important that you provide reason=
s.</p>
<p>&nbsp;</p>
<p>This poll will last for two weeks, ending on Tuesday, December 20.</p>
<p>&nbsp;<br>
Thanks,<br>
Tianran &amp; Warren</p>
</div>
</div>
</div>
</span>
</body>
</html>

--_000_D46D9A801B6252naikumarciscocom_--


From nobody Thu Dec  8 07:58:22 2016
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From: joel jaeggli <joelja@bogus.com>
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Date: Thu, 8 Dec 2016 07:58:01 -0800
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Subject: [OPSAWG] draft-brockners-inband-oam-transport - interactions with header insertion.
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From: joel jaeggli <joelja@bogus.com>
To: draft-brockners-inband-oam-transport@tools.ietf.org,
 "opsawg@ietf.org" <opsawg@ietf.org>, "ipv6@ietf.org 6man" <ipv6@ietf.org>
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Hi was reviewing

https://tools.ietf.org/html/draft-brockners-inband-oam-transport-00

I note that 2460bis work going on

https://datatracker.ietf.org/doc/draft-ietf-6man-rfc2460bis

would probably take issue with header insertion

as proposed as one mechanism here:

https://tools.ietf.org/html/draft-brockners-inband-oam-transport-00#page-=
4

   The in-band OAM options translate into options for an IPv6 extension
   header.  The extension header would be inserted by either a host
   source of the packet, or by a transit/domain-edge node.





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From nobody Wed Dec 14 06:18:39 2016
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From: <mohamed.boucadair@orange.com>
To: "opsawg@ietf.org" <opsawg@ietf.org>
Thread-Topic: Interest to work on draft-sivakumar-yang-nat?
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Subject: [OPSAWG] Interest to work on draft-sivakumar-yang-nat?
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Dear all,

In a discussion I had with one of the softwire wg co-chairs (cced), Ian sug=
gested that we try to socialize this draft within opsawg:
https://tools.ietf.org/html/draft-sivakumar-yang-nat-05

I'm sending this message to solicit opsawg whether there is interest to rev=
iew and (hopefully) to endorse that effort.

Thank you.

Cheers,
Med

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<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;Co=
urier New&quot;">Dear all,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;Co=
urier New&quot;"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-=
family:&quot;Courier New&quot;">In a discussion I had with one of the softw=
ire wg co-chairs (cced), Ian suggested that we try to socialize this draft =
within opsawg:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;Co=
urier New&quot;"><a href=3D"https://tools.ietf.org/html/draft-sivakumar-yan=
g-nat-05"><span lang=3D"EN-US">https://tools.ietf.org/html/draft-sivakumar-=
yang-nat-05</span></a><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;Co=
urier New&quot;"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-=
family:&quot;Courier New&quot;">I&#8217;m sending this message to solicit o=
psawg whether there is interest to review and (hopefully) to endorse that e=
ffort.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-=
family:&quot;Courier New&quot;"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-=
family:&quot;Courier New&quot;">Thank you.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-=
family:&quot;Courier New&quot;"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-=
family:&quot;Courier New&quot;">Cheers,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-=
family:&quot;Courier New&quot;">Med
<o:p></o:p></span></p>
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To: Zhoutianran <zhoutianran@huawei.com>, "opsawg@ietf.org" <opsawg@ietf.org>
References: <BBA82579FD347748BEADC4C445EA0F21A22793F7@NKGEML515-MBX.china.huawei.com>
From: "Bert Wijnen (IETF)" <bertietf@bwijnen.net>
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Date: Wed, 14 Dec 2016 15:48:53 +0100
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Cc: "opsawg-chairs@ietf.org" <opsawg-chairs@ietf.org>
Subject: Re: [OPSAWG] WG adoption poll for In-Situ OAM drafts
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i am not sure if it is wise to adopt these 3 drafts as WG documents at this
point in time. At our WG session in Seoul, (when the WG chairs did a humm for
this in the session), I spoke up and stated that during the week in Seoul
there had been several presentations on inband OAM and Telemetry.
And I suggested that it might be wise to first analyze what is available and
already used or tested. Once we know that, we might be in a much better
position to determine which type of "inband OAM" or "Telemetry" mechanism makes
most sense.

My understanding of the humm in the WG was" "is this sort of work interesting
and do we as a WG want to work on thos". To that question, the humm seemed to
indicate that we indeed do fond the work relevant and interesting and that we
as the OPSAWG want to work on it. I took notes during our OPSAWG session in
Seoul, and I wrote down on this topic of inband OAM (and that has been posted
as draft minutes as well):

       Open question as where to land this work (OPS or TSV) ??

       Joel: the actual OAM methods vary on what the transport is.

       BW: there seem to be various telemetry ideas being presented at various places
           (WGs, RGs) should we get a summary of what is being discussed before we
            adopt a particular approach
       Daniel King: yes we have seen some in SDNRG
       Benoit: how do you get the data off the devices
               That is still to be decided
       Chairs: humm for: do we i(OPSAWG) want to work on telemetry
               conclusion: yes we do
       Benoit: there is a pub/subscribe which is related

So I find it a step too quick/fast to now determine which documents to adopt
as WG document. Let us get (from someone versen in the field of inband OAM
and telemetry) get a summary of the various types of work that has already been
presented/proposed in the IETF (and possibly at other places) and let us then
see if we can choose a way forward.

Bert

On 07/12/2016 07:36, Zhoutianran wrote:
> Hi All,
>
>
>
> In Seoul, we got enough interest on the In Situ OAM work and positive response on related drafts.
> So this email starts a formal poll for adoption the following I-Ds.
>
>
>
> https://tools.ietf.org/html/draft-brockners-inband-oam-requirements-02.txt
> https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.txt
> https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.txt
>
>
>
> To be efficient, we have the poll for three I-Ds in one thread. But you can give your opinion on each of them. And the result is per
> I-D.
>
>
>
> The question is:
> Do you think that the WG should adopt all or some of these drafts?
>
>
>
> It would be helpful if you could indicate whether you have read the drafts. If "yes", would you like to review the drafts and help
> to improve the drafts? If "no", it is important that you provide reasons.
>
>
>
> This poll will last for two weeks, ending on Tuesday, December 20.
>
>
> Thanks,
> Tianran & Warren
>
>
>
> _______________________________________________
> OPSAWG mailing list
> OPSAWG@ietf.org
> https://www.ietf.org/mailman/listinfo/opsawg
>


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To: "opsawg@ietf.org" <opsawg@ietf.org>
From: Eliot Lear <lear@cisco.com>
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Date: Wed, 14 Dec 2016 17:08:48 +0100
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Subject: [OPSAWG] just a brief MUD update
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Subject: just a brief MUD update

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Hi everyone,

Given that we have a bunch of assignments, I've worked with the owner of
dhcpcd to get some code checked in.  That has happened. There is also a
pending pull request now for tcpdump, and a similar pull request will be
made for the dhcp option for Wireshark.  Now looking for reviews so that
we can resolve issues by the March IETF.

Thanks,

Eliot




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From: "Adrian Farrel" <adrian@olddog.co.uk>
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Cc: opsawg-chairs@ietf.org
Subject: Re: [OPSAWG] WG adoption poll for In-Situ OAM drafts
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Hi Tianran,
 
I'm fairly much in agreement that this is a topic that should be worked on in
the IETF. 
 
I am somewhat nervous about the overlap between this and OAM work undertaken in
a number of working groups chiefly in the Routing Area, and I hope there can be
some careful coordination. 
 
My feeling is that we should start with the requirements draft at once. I am
pretty sure that once inside the WG we can quickly get important input from
operators and bash it into shape.
 
I think that the data format document may be close to being ready for adoption,
but I think that there are some largish wrinkles that could do with being ironed
out first. Chief among these are:
- A thorough investigation of the numeric impact on the amount of data that can
be sent. In other words, the change to the effective MTU
- The Abstract specifically says how encapsulation will be managed for IPv6. Not
only does the document later say that this is out of scope, but the mechanism
proposed in the Abstract is one that worries me.
- I don't like that the OAM only works if every node on the path supports it. I
would like for us to achieve some form of comfortable b/w compatibility.
- As an "experiment" I would like to understand how the experiment would be
conducted and what would constitute success
 
Why do I think these points should be addressed before adoption? I am worried
that without looking at them first there will be an assumption that the
document's is already set and 'radical' changes cannot be made. I think that my
points can be handled by:
- Adding a section on "MTU Concerns" that provides a pointer to the relevant
part of the requirements draft, and offers up some basic maths on the expected
size of OAM information in a packet.
- Removing the offending text from the Abstract
- Adding a section on b/w compatibility (maybe just as a placeholder) and
cleaning up the text that requires every node on the path to support in-situ
OAM.
- Adding a section scoping the experiment that the authors think they want the
WG to perform.
 
As for the proof of transit work, I think it is a bit of a mess at the moment.
It seems to be growing new approaches and options, each with drawbacks and
issues. And I'm not clear on the objectives.  This might be handled as with the
previous document by describing and scoping the experiment, but as currently
written, it would appear that the intention is to research a number of potential
approaches to proof of transit rather than to experiment with a particular
protocol solution, and that might make the document better suited to the NMRG.
So I would like to apply a bit more caution to that document.
  
In any event, during the process of adoption, do you think you could cut down
the front page authors to a manageable number so that we know who is editing the
work going forward?
 
Thanks,
Adrian
 
From: OPSAWG [mailto:opsawg-bounces@ietf.org] On Behalf Of Zhoutianran
Sent: 07 December 2016 06:37
To: opsawg@ietf.org
Cc: opsawg-chairs@ietf.org
Subject: [OPSAWG] WG adoption poll for In-Situ OAM drafts
 
Hi All,
 
In Seoul, we got enough interest on the In Situ OAM work and positive response
on related drafts.
So this email starts a formal poll for adoption the following I-Ds.
 
https://tools.ietf.org/html/draft-brockners-inband-oam-requirements-02.txt
https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.txt 
https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.txt
 
To be efficient, we have the poll for three I-Ds in one thread. But you can give
your opinion on each of them. And the result is per I-D.
 
The question is:
Do you think that the WG should adopt all or some of these drafts?
 
It would be helpful if you could indicate whether you have read the drafts. If
"yes", would you like to review the drafts and help to improve the drafts? If
"no", it is important that you provide reasons.
 
This poll will last for two weeks, ending on Tuesday, December 20.
 
Thanks,
Tianran & Warren

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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-GB link=3Dblue =
vlink=3Dpurple style=3D'tab-interval:36.0pt'><div =
class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>Hi Tianran,<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>I'm fairly much in agreement that this is a topic =
that should be worked on in the IETF. <o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>I am somewhat nervous about the overlap between =
this and OAM work undertaken in a number of working groups chiefly in =
the Routing Area, and I hope there can be some careful coordination. =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>My feeling is that we should start with the =
requirements draft at once. I am pretty sure that once inside the WG we =
can quickly get important input from operators and bash it into =
shape.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>I think that the data format document may be close =
to being ready for adoption, but I think that there are some largish =
wrinkles that could do with being ironed out first. Chief among these =
are:<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>- A thorough investigation of the numeric impact =
on the amount of data that can be sent. In other words, the change to =
the effective MTU<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>- The Abstract specifically says how encapsulation =
will be managed for IPv6. Not only does the document later say that this =
is out of scope, but the mechanism proposed in the Abstract is one that =
worries me.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>- I don't like that the OAM only works if every =
node on the path supports it. I would like for us to achieve some form =
of comfortable b/w compatibility.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>- As an &quot;experiment&quot; I would like to =
understand how the experiment would be conducted and what would =
constitute success<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>Why do I think these points should be addressed =
before adoption? I am worried that without looking at them first there =
will be an assumption that the document's is already set and 'radical' =
changes cannot be made. I think that my points can be handled =
by:<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>- Adding a section on &quot;MTU Concerns&quot; =
that provides a pointer to the relevant part of the requirements draft, =
and offers up some basic maths on the expected size of OAM information =
in a packet.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>- Removing the offending text from the =
Abstract<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>- Adding a section on b/w compatibility (maybe =
just as a placeholder) and cleaning up the text that requires every node =
on the path to support in-situ OAM.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>- Adding a section scoping the experiment that the =
authors think they want the WG to perform.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>As for the proof of transit work, I think it is a =
bit of a mess at the moment. It seems to be growing new approaches and =
options, each with drawbacks and issues. And I'm not clear on the =
objectives. <span style=3D'mso-spacerun:yes'>&nbsp;</span>This might be =
handled as with the previous document by describing and scoping the =
experiment, but as currently written, it would appear that the intention =
is to research a number of potential approaches to proof of transit =
rather than to experiment with a particular protocol solution, and that =
might make the document better suited to the NMRG. So I would like to =
apply a bit more caution to that document.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'><span style=3D'mso-spacerun:yes'>&nbsp; =
</span><o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>In any event, during the process of adoption, do =
you think you could cut down the front page authors to a manageable =
number so that we know who is editing the work going =
forward?<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>Thanks,<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>Adrian<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><div =
style=3D'border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt'><div><div style=3D'border:none;border-top:solid #B5C4DF =
1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=3DMsoNormal><b><span =
lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-ansi-lang=
uage:EN-US'>From:</span></b><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-ansi-lang=
uage:EN-US'> OPSAWG [mailto:opsawg-bounces@ietf.org] <b>On Behalf Of =
</b>Zhoutianran<br><b>Sent:</b> 07 December 2016 06:37<br><b>To:</b> =
opsawg@ietf.org<br><b>Cc:</b> opsawg-chairs@ietf.org<br><b>Subject:</b> =
[OPSAWG] WG adoption poll for In-Situ OAM =
drafts<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
Hi All,<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
&nbsp;<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
In Seoul, we got enough interest on the In Situ OAM work and positive =
response on related drafts.<br>So this email starts a formal poll for =
adoption the following I-Ds.<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
&nbsp;<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
<a =
href=3D"https://tools.ietf.org/html/draft-brockners-inband-oam-requiremen=
ts-02.txt">https://tools.ietf.org/html/draft-brockners-inband-oam-require=
ments-02.txt</a><br><a =
href=3D"https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.tx=
t">https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.txt</a>=
 <br><a =
href=3D"https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.t=
xt">https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.txt</=
a><o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
&nbsp;<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
To be efficient, we have the poll for three I-Ds in one thread. But you =
can give your opinion on each of them. And the result is per =
I-D.<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
&nbsp;<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
The question is:<br>Do you think that the WG should adopt all or some of =
these drafts?<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
&nbsp;<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
It would be helpful if you could indicate whether you have read the =
drafts. If &quot;yes&quot;, would you like to review the drafts and help =
to improve the drafts? If &quot;no&quot;, it is important that you =
provide reasons.<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
&nbsp;<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
This poll will last for two weeks, ending on Tuesday, December =
20.<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
&nbsp;<br>Thanks,<br>Tianran &amp; =
Warren<o:p></o:p></span></p></div></div></div></body></html>
------=_NextPart_000_09F3_01D2571F.DD04AEC0--



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From: Zhoutianran <zhoutianran@huawei.com>
To: "adrian@olddog.co.uk" <adrian@olddog.co.uk>, "opsawg@ietf.org" <opsawg@ietf.org>
Thread-Topic: [OPSAWG] WG adoption poll for In-Situ OAM drafts
Thread-Index: AQHSVx/mUXt8+x2klEaHm0Hspz2YQqEJ7XGA
Date: Fri, 16 Dec 2016 06:28:11 +0000
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Subject: Re: [OPSAWG] WG adoption poll for In-Situ OAM drafts
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Hi Adrian,

Thanks for your comments. The poll is to collect various opinions from the =
WG.
I have some preliminary reply in line.

Best,
Tianran
From: Adrian Farrel [mailto:adrian@olddog.co.uk]
Sent: Friday, December 16, 2016 6:09 AM
To: Zhoutianran; opsawg@ietf.org
Cc: opsawg-chairs@ietf.org
Subject: RE: [OPSAWG] WG adoption poll for In-Situ OAM drafts

Hi Tianran,

I'm fairly much in agreement that this is a topic that should be worked on =
in the IETF.

>> Agreed.

I am somewhat nervous about the overlap between this and OAM work undertake=
n in a number of working groups chiefly in the Routing Area, and I hope the=
re can be some careful coordination.

>> I also asked the authors about this question. Especially there is an ove=
rlay OAM design team in routing area. Their drafts and outputs show they al=
so want to standardize a common OAM header for various transport.

My feeling is that we should start with the requirements draft at once. I a=
m pretty sure that once inside the WG we can quickly get important input fr=
om operators and bash it into shape.

I think that the data format document may be close to being ready for adopt=
ion, but I think that there are some largish wrinkles that could do with be=
ing ironed out first. Chief among these are:
- A thorough investigation of the numeric impact on the amount of data that=
 can be sent. In other words, the change to the effective MTU
- The Abstract specifically says how encapsulation will be managed for IPv6=
. Not only does the document later say that this is out of scope, but the m=
echanism proposed in the Abstract is one that worries me.
- I don't like that the OAM only works if every node on the path supports i=
t. I would like for us to achieve some form of comfortable b/w compatibilit=
y.
- As an "experiment" I would like to understand how the experiment would be=
 conducted and what would constitute success

Why do I think these points should be addressed before adoption? I am worri=
ed that without looking at them first there will be an assumption that the =
document's is already set and 'radical' changes cannot be made. I think tha=
t my points can be handled by:
- Adding a section on "MTU Concerns" that provides a pointer to the relevan=
t part of the requirements draft, and offers up some basic maths on the exp=
ected size of OAM information in a packet.
- Removing the offending text from the Abstract
- Adding a section on b/w compatibility (maybe just as a placeholder) and c=
leaning up the text that requires every node on the path to support in-situ=
 OAM.
- Adding a section scoping the experiment that the authors think they want =
the WG to perform.

>> Thanks for your comments and suggestions.

As for the proof of transit work, I think it is a bit of a mess at the mome=
nt. It seems to be growing new approaches and options, each with drawbacks =
and issues. And I'm not clear on the objectives.  This might be handled as =
with the previous document by describing and scoping the experiment, but as=
 currently written, it would appear that the intention is to research a num=
ber of potential approaches to proof of transit rather than to experiment w=
ith a particular protocol solution, and that might make the document better=
 suited to the NMRG. So I would like to apply a bit more caution to that do=
cument.
>> In my opinion, the objective of the POT draft is to demonstrate a soluti=
on for an applicable use case with in-situ OAM.

In any event, during the process of adoption, do you think you could cut do=
wn the front page authors to a manageable number so that we know who is edi=
ting the work going forward?

>> I think 5 authors is preferred. But at least the authors can add "Ed." t=
ag after the editors.

Thanks,
Adrian

From: OPSAWG [mailto:opsawg-bounces@ietf.org] On Behalf Of Zhoutianran
Sent: 07 December 2016 06:37
To: opsawg@ietf.org<mailto:opsawg@ietf.org>
Cc: opsawg-chairs@ietf.org<mailto:opsawg-chairs@ietf.org>
Subject: [OPSAWG] WG adoption poll for In-Situ OAM drafts


Hi All,



In Seoul, we got enough interest on the In Situ OAM work and positive respo=
nse on related drafts.
So this email starts a formal poll for adoption the following I-Ds.



https://tools.ietf.org/html/draft-brockners-inband-oam-requirements-02.txt
https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.txt
https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.txt



To be efficient, we have the poll for three I-Ds in one thread. But you can=
 give your opinion on each of them. And the result is per I-D.



The question is:
Do you think that the WG should adopt all or some of these drafts?



It would be helpful if you could indicate whether you have read the drafts.=
 If "yes", would you like to review the drafts and help to improve the draf=
ts? If "no", it is important that you provide reasons.



This poll will last for two weeks, ending on Tuesday, December 20.


Thanks,
Tianran & Warren

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<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Courier New&quot;;color:#1F497D">Hi Adrian,<o:p></o:p></span><=
/p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Courier New&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Courier New&quot;;color:#1F497D">Thanks for your comments. The=
 poll is to collect various opinions from the WG.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Courier New&quot;;color:#1F497D">I have some preliminary reply=
 in line.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Courier New&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Courier New&quot;;color:#1F497D">Best,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Courier New&quot;;color:#1F497D">Tianran<o:p></o:p></span></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt">
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"font-size:10.0pt;fo=
nt-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></b><span =
lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&qu=
ot;sans-serif&quot;"> Adrian Farrel [mailto:adrian@olddog.co.uk]
<br>
<b>Sent:</b> Friday, December 16, 2016 6:09 AM<br>
<b>To:</b> Zhoutianran; opsawg@ietf.org<br>
<b>Cc:</b> opsawg-chairs@ietf.org<br>
<b>Subject:</b> RE: [OPSAWG] WG adoption poll for In-Situ OAM drafts<o:p></=
o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Hi Tianran=
,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp=
;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">I'm fairly=
 much in agreement that this is a topic that should be worked on in the IET=
F.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp=
;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:10.5pt;font-=
family:&quot;Courier New&quot;;color:#1F497D">&gt;&gt; Agreed.<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:10.5pt;font-=
family:&quot;Courier New&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">I am somew=
hat nervous about the overlap between this and OAM work undertaken in a num=
ber of working groups chiefly in the Routing Area, and I hope
 there can be some careful coordination. </span><span lang=3D"EN-GB" style=
=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;=
;color:#1F497D"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:10.5pt;font-=
family:&quot;Courier New&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:10.5pt;font-=
family:&quot;Courier New&quot;;color:#1F497D">&gt;&gt; I also asked the aut=
hors about this question. Especially there is an overlay OAM design team in=
 routing area. Their drafts and outputs show they also
 want to standardize a common OAM header for various transport. <o:p></o:p>=
</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp=
;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">My feeling=
 is that we should start with the requirements draft at once. I am pretty s=
ure that once inside the WG we can quickly get important input
 from operators and bash it into shape.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp=
;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">I think th=
at the data format document may be close to being ready for adoption, but I=
 think that there are some largish wrinkles that could do
 with being ironed out first. Chief among these are:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">- A thorou=
gh investigation of the numeric impact on the amount of data that can be se=
nt. In other words, the change to the effective MTU<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">- The Abst=
ract specifically says how encapsulation will be managed for IPv6. Not only=
 does the document later say that this is out of scope, but
 the mechanism proposed in the Abstract is one that worries me.<o:p></o:p><=
/span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">- I don't =
like that the OAM only works if every node on the path supports it. I would=
 like for us to achieve some form of comfortable b/w compatibility.<o:p></o=
:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">- As an &q=
uot;experiment&quot; I would like to understand how the experiment would be=
 conducted and what would constitute success</span><span lang=3D"EN-GB" sty=
le=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quo=
t;;color:#1F497D"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:10.5pt;font-=
family:&quot;Courier New&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Why do I t=
hink these points should be addressed before adoption? I am worried that wi=
thout looking at them first there will be an assumption that
 the document's is already set and 'radical' changes cannot be made. I thin=
k that my points can be handled by:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">- Adding a=
 section on &quot;MTU Concerns&quot; that provides a pointer to the relevan=
t part of the requirements draft, and offers up some basic maths on
 the expected size of OAM information in a packet.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">- Removing=
 the offending text from the Abstract<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">- Adding a=
 section on b/w compatibility (maybe just as a placeholder) and cleaning up=
 the text that requires every node on the path to support
 in-situ OAM.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">- Adding a=
 section scoping the experiment that the authors think they want the WG to =
perform.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp=
;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:10.5pt;font-=
family:&quot;Courier New&quot;;color:#1F497D">&gt;&gt; Thanks for your comm=
ents and suggestions.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:10.5pt;font-=
family:&quot;Courier New&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">As for the=
 proof of transit work, I think it is a bit of a mess at the moment. It see=
ms to be growing new approaches and options, each with drawbacks
 and issues. And I'm not clear on the objectives.&nbsp; This might be handl=
ed as with the previous document by describing and scoping the experiment, =
but as currently written, it would appear that the intention is to research=
 a number of potential approaches to
 proof of transit rather than to experiment with a particular protocol solu=
tion, and that might make the document better suited to the NMRG. So I woul=
d like to apply a bit more caution to that document.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"></span><sp=
an lang=3D"EN-GB" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;=
,&quot;sans-serif&quot;;color:#1F497D"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:10.5pt;font-=
family:&quot;Courier New&quot;;color:#1F497D">&gt;&gt; In my opinion, the o=
bjective of the POT draft is to demonstrate a solution for an applicable us=
e case with in-situ OAM.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:10.5pt;font-=
family:&quot;Courier New&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">In any eve=
nt, during the process of adoption, do you think you could cut down the fro=
nt page authors to a manageable number so that we know who
 is editing the work going forward?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp=
;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:10.5pt;font-=
family:&quot;Courier New&quot;;color:#1F497D">&gt;&gt; I think 5 authors is=
 preferred. But at least the authors can add &#8220;Ed.&#8221; tag after th=
e editors.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:10.5pt;font-=
family:&quot;Courier New&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Thanks,<o:=
p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Adrian<o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp=
;</o:p></span></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt">
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"font-size:10.0pt;fo=
nt-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></b><span =
lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&qu=
ot;sans-serif&quot;"> OPSAWG [<a href=3D"mailto:opsawg-bounces@ietf.org">ma=
ilto:opsawg-bounces@ietf.org</a>]
<b>On Behalf Of </b>Zhoutianran<br>
<b>Sent:</b> 07 December 2016 06:37<br>
<b>To:</b> <a href=3D"mailto:opsawg@ietf.org">opsawg@ietf.org</a><br>
<b>Cc:</b> <a href=3D"mailto:opsawg-chairs@ietf.org">opsawg-chairs@ietf.org=
</a><br>
<b>Subject:</b> [OPSAWG] WG adoption poll for In-Situ OAM drafts<o:p></o:p>=
</span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<div>
<p><span lang=3D"EN-GB" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&=
quot;,&quot;sans-serif&quot;;color:black">Hi All,<o:p></o:p></span></p>
<p><span lang=3D"EN-GB" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&=
quot;,&quot;sans-serif&quot;;color:black">&nbsp;<o:p></o:p></span></p>
<p><span lang=3D"EN-GB" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&=
quot;,&quot;sans-serif&quot;;color:black">In Seoul, we got enough interest =
on the In Situ OAM work and positive response on related drafts.<br>
So this email starts a formal poll for adoption the following I-Ds.<o:p></o=
:p></span></p>
<p><span lang=3D"EN-GB" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&=
quot;,&quot;sans-serif&quot;;color:black">&nbsp;<o:p></o:p></span></p>
<p><span lang=3D"EN-GB" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&=
quot;,&quot;sans-serif&quot;;color:black"><a href=3D"https://tools.ietf.org=
/html/draft-brockners-inband-oam-requirements-02.txt">https://tools.ietf.or=
g/html/draft-brockners-inband-oam-requirements-02.txt</a><br>
<a href=3D"https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.t=
xt">https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.txt</a>
<br>
<a href=3D"https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.=
txt">https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.txt</a=
><o:p></o:p></span></p>
<p><span lang=3D"EN-GB" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&=
quot;,&quot;sans-serif&quot;;color:black">&nbsp;<o:p></o:p></span></p>
<p><span lang=3D"EN-GB" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&=
quot;,&quot;sans-serif&quot;;color:black">To be efficient, we have the poll=
 for three I-Ds in one thread. But you can give your opinion on each of the=
m. And the result is per I-D.<o:p></o:p></span></p>
<p><span lang=3D"EN-GB" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&=
quot;,&quot;sans-serif&quot;;color:black">&nbsp;<o:p></o:p></span></p>
<p><span lang=3D"EN-GB" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&=
quot;,&quot;sans-serif&quot;;color:black">The question is:<br>
Do you think that the WG should adopt all or some of these drafts?<o:p></o:=
p></span></p>
<p><span lang=3D"EN-GB" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&=
quot;,&quot;sans-serif&quot;;color:black">&nbsp;<o:p></o:p></span></p>
<p><span lang=3D"EN-GB" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&=
quot;,&quot;sans-serif&quot;;color:black">It would be helpful if you could =
indicate whether you have read the drafts. If &quot;yes&quot;, would you li=
ke to review the drafts and help to improve the drafts? If &quot;no&quot;, =
it
 is important that you provide reasons.<o:p></o:p></span></p>
<p><span lang=3D"EN-GB" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&=
quot;,&quot;sans-serif&quot;;color:black">&nbsp;<o:p></o:p></span></p>
<p><span lang=3D"EN-GB" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&=
quot;,&quot;sans-serif&quot;;color:black">This poll will last for two weeks=
, ending on Tuesday, December 20.<o:p></o:p></span></p>
<p><span lang=3D"EN-GB" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&=
quot;,&quot;sans-serif&quot;;color:black">&nbsp;<br>
Thanks,<br>
Tianran &amp; Warren<o:p></o:p></span></p>
</div>
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To: adrian@olddog.co.uk, 'Zhoutianran' <zhoutianran@huawei.com>, opsawg@ietf.org
References: <BBA82579FD347748BEADC4C445EA0F21A22793F7@NKGEML515-MBX.china.huawei.com> <09f201d2571f$dd023dc0$9706b940$@olddog.co.uk>
From: Stewart Bryant <stewart.bryant@gmail.com>
Message-ID: <ddff9c88-a397-3735-47d2-1770114f3c5c@gmail.com>
Date: Mon, 19 Dec 2016 09:46:51 +0000
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Subject: Re: [OPSAWG] WG adoption poll for In-Situ OAM drafts
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On 15/12/2016 22:09, Adrian Farrel wrote:
> As for the proof of transit work, I think it is a bit of a mess at the 
> moment. It seems to be growing new approaches and options, each with 
> drawbacks and issues. And I'm not clear on the objectives. This might 
> be handled as with the previous document by describing and scoping the 
> experiment, but as currently written, it would appear that the 
> intention is to research a number of potential approaches to proof of 
> transit rather than to experiment with a particular protocol solution, 
> and that might make the document better suited to the NMRG. So I would 
> like to apply a bit more caution to that document.

I think that there are two proof of transit solutions needed. One for 
network operators for simple operational verification and one for 
commercial or regulatory situations. In the first case one can assume a 
benign environment and use a lightweight approach. In the other one must 
assume a hostile environment and apply a more stringent proof. Maybe one 
can be a variant of the other, but this should not be at the cost of 
performance and implementation expense.

- Stewart

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    <br>
    <div class="moz-cite-prefix">On 15/12/2016 22:09, Adrian Farrel
      wrote:<br>
    </div>
    <blockquote cite="mid:09f201d2571f$dd023dc0$9706b940$@olddog.co.uk"
      type="cite"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;mso-fareast-font-family:Calibri;mso-bidi-font-family:&quot;Times
        New Roman&quot;;color:#1F497D">As for the proof of transit work,
        I think it is a bit of a mess at the moment. It seems to be
        growing new approaches and options, each with drawbacks and
        issues. And I'm not clear on the objectives. <span
          style="mso-spacerun:yes"> </span>This might be handled as with
        the previous document by describing and scoping the experiment,
        but as currently written, it would appear that the intention is
        to research a number of potential approaches to proof of transit
        rather than to experiment with a particular protocol solution,
        and that might make the document better suited to the NMRG. So I
        would like to apply a bit more caution to that document.</span></blockquote>
    <br>
    I think that there are two proof of transit solutions needed. One
    for network operators for simple operational verification and one
    for commercial or regulatory situations. In the first case one can
    assume a benign environment and use a lightweight approach. In the
    other one must assume a hostile environment and apply a more
    stringent proof. Maybe one can be a variant of the other, but this
    should not be at the cost of performance and implementation expense.<br>
    <br>
    - Stewart<br>
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From nobody Tue Dec 20 21:54:44 2016
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From: "Carlos Pignataro (cpignata)" <cpignata@cisco.com>
To: Zhoutianran <zhoutianran@huawei.com>
Thread-Topic: [OPSAWG] WG adoption poll for In-Situ OAM drafts
Thread-Index: AdJQVEYJCBMLV1cSTcyLnqw8kzKLGQLJFmcA
Date: Wed, 21 Dec 2016 05:54:38 +0000
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From: "Carlos Pignataro (cpignata)" <cpignata@cisco.com>
To: "Bert Wijnen (IETF)" <bertietf@bwijnen.net>
Thread-Topic: [OPSAWG] WG adoption poll for In-Situ OAM drafts
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Date: Wed, 21 Dec 2016 06:02:14 +0000
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Subject: Re: [OPSAWG] WG adoption poll for In-Situ OAM drafts
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From: "Carlos Pignataro (cpignata)" <cpignata@cisco.com>
To: Adrian Farrel <adrian@olddog.co.uk>
Thread-Topic: [OPSAWG] WG adoption poll for In-Situ OAM drafts
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Date: Wed, 21 Dec 2016 06:36:07 +0000
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References: <BBA82579FD347748BEADC4C445EA0F21A22793F7@NKGEML515-MBX.china.huawei.com> <09f201d2571f$dd023dc0$9706b940$@olddog.co.uk>
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Subject: Re: [OPSAWG] WG adoption poll for In-Situ OAM drafts
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From: "Carlos Pignataro (cpignata)" <cpignata@cisco.com>
To: Zhoutianran <zhoutianran@huawei.com>
Thread-Topic: [OPSAWG] WG adoption poll for In-Situ OAM drafts
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Date: Wed, 21 Dec 2016 06:41:12 +0000
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References: <BBA82579FD347748BEADC4C445EA0F21A22793F7@NKGEML515-MBX.china.huawei.com> <09f201d2571f$dd023dc0$9706b940$@olddog.co.uk> <BBA82579FD347748BEADC4C445EA0F21A2282E7C@NKGEML515-MBX.china.huawei.com>
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Cc: "opsawg@ietf.org" <opsawg@ietf.org>, "opsawg-chairs@ietf.org" <opsawg-chairs@ietf.org>
Subject: Re: [OPSAWG] WG adoption poll for In-Situ OAM drafts
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From: Tal Mizrahi <talmi@marvell.com>
To: Zhoutianran <zhoutianran@huawei.com>, "opsawg@ietf.org" <opsawg@ietf.org>
Thread-Topic: [OPSAWG] WG adoption poll for In-Situ OAM drafts
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Subject: Re: [OPSAWG] WG adoption poll for In-Situ OAM drafts
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Hi,

As a co-author I support WG adoption of these documents.

I believe the OPSA WG is the most suitable place for these drafts, since th=
ey present an OAM solution that may be applicable to both the Routing area =
(e.g., NVO3, SFC), and the Internet area (6man). The in-situ work has a cro=
ss-area nature on one hand, but is pretty specific on the other hand --- it=
 is not intended to be a generic OAM solution for overlay protocols, and th=
erefore is not intended to overlap with the work of the RTG area Overlay OA=
M DT.

Therefore, I believe the OPSA WG is the best place to foster the in-situ OA=
M work.

Thanks,
Tal.





From: OPSAWG [mailto:opsawg-bounces@ietf.org] On Behalf Of Zhoutianran
Sent: Wednesday, December 07, 2016 8:37 AM
To: opsawg@ietf.org
Cc: opsawg-chairs@ietf.org
Subject: [EXT] [OPSAWG] WG adoption poll for In-Situ OAM drafts


Hi All,



In Seoul, we got enough interest on the In Situ OAM work and positive respo=
nse on related drafts.
So this email starts a formal poll for adoption the following I-Ds.



https://tools.ietf.org/html/draft-brockners-inband-oam-requirements-02.txt
https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.txt
https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.txt



To be efficient, we have the poll for three I-Ds in one thread. But you can=
 give your opinion on each of them. And the result is per I-D.



The question is:
Do you think that the WG should adopt all or some of these drafts?



It would be helpful if you could indicate whether you have read the drafts.=
 If "yes", would you like to review the drafts and help to improve the draf=
ts? If "no", it is important that you provide reasons.



This poll will last for two weeks, ending on Tuesday, December 20.


Thanks,
Tianran & Warren

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<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D">Hi,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D">As a co-author I support =
WG adoption of these documents.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D">I believe the OPSA WG is =
the most suitable place for these drafts, since they present an OAM solutio=
n that may be applicable to both the Routing area (e.g.,
 NVO3, SFC), and the Internet area (6man). The in-situ work has a cross-are=
a nature on one hand, but is pretty specific on the other hand --- it is no=
t intended to be a generic OAM solution for overlay protocols, and therefor=
e is not intended to overlap with
 the work of the RTG area Overlay OAM DT.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D">Therefore, I believe the =
OPSA WG is the best place to foster the in-situ OAM work.<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D">Thanks,<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D">Tal.<o:p></o:p></span></p=
>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span><=
/p>
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<p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;font-family:&quot=
;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></b><span style=3D"font-s=
ize:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;"> OPSAWG [=
mailto:opsawg-bounces@ietf.org]
<b>On Behalf Of </b>Zhoutianran<br>
<b>Sent:</b> Wednesday, December 07, 2016 8:37 AM<br>
<b>To:</b> opsawg@ietf.org<br>
<b>Cc:</b> opsawg-chairs@ietf.org<br>
<b>Subject:</b> [EXT] [OPSAWG] WG adoption poll for In-Situ OAM drafts<o:p>=
</o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<p><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;san=
s-serif&quot;;color:black">Hi All,<o:p></o:p></span></p>
<p><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;san=
s-serif&quot;;color:black">&nbsp;<o:p></o:p></span></p>
<p><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;san=
s-serif&quot;;color:black">In Seoul, we got enough interest on the In Situ =
OAM work and positive response on related drafts.<br>
So this email starts a formal poll for adoption the following I-Ds.<o:p></o=
:p></span></p>
<p><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;san=
s-serif&quot;;color:black">&nbsp;<o:p></o:p></span></p>
<p><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;san=
s-serif&quot;;color:black"><a href=3D"https://tools.ietf.org/html/draft-bro=
ckners-inband-oam-requirements-02.txt">https://tools.ietf.org/html/draft-br=
ockners-inband-oam-requirements-02.txt</a><br>
<a href=3D"https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.t=
xt">https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.txt</a>
<br>
<a href=3D"https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.=
txt">https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.txt</a=
><o:p></o:p></span></p>
<p><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;san=
s-serif&quot;;color:black">&nbsp;<o:p></o:p></span></p>
<p><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;san=
s-serif&quot;;color:black">To be efficient, we have the poll for three I-Ds=
 in one thread. But you can give your opinion on each of them. And the resu=
lt is per I-D.<o:p></o:p></span></p>
<p><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;san=
s-serif&quot;;color:black">&nbsp;<o:p></o:p></span></p>
<p><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;san=
s-serif&quot;;color:black">The question is:<br>
Do you think that the WG should adopt all or some of these drafts?<o:p></o:=
p></span></p>
<p><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;san=
s-serif&quot;;color:black">&nbsp;<o:p></o:p></span></p>
<p><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;san=
s-serif&quot;;color:black">It would be helpful if you could indicate whethe=
r you have read the drafts. If &quot;yes&quot;, would you like to review th=
e drafts and help to improve the drafts? If &quot;no&quot;, it is important
 that you provide reasons.<o:p></o:p></span></p>
<p><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;san=
s-serif&quot;;color:black">&nbsp;<o:p></o:p></span></p>
<p><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;san=
s-serif&quot;;color:black">This poll will last for two weeks, ending on Tue=
sday, December 20.<o:p></o:p></span></p>
<p><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;san=
s-serif&quot;;color:black">&nbsp;<br>
Thanks,<br>
Tianran &amp; Warren<o:p></o:p></span></p>
</div>
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</div>
</body>
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From nobody Wed Dec 21 03:42:58 2016
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To: "Carlos Pignataro (cpignata)" <cpignata@cisco.com>
References: <BBA82579FD347748BEADC4C445EA0F21A22793F7@NKGEML515-MBX.china.huawei.com> <efe26cbb-5fa2-e4dc-7aa2-dcb670787aca@bwijnen.net> <216B3CE9-614C-4756-AA86-C8DE4F7226E6@cisco.com>
From: "Bert Wijnen (IETF)" <bertietf@bwijnen.net>
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Cc: "opsawg@ietf.org" <opsawg@ietf.org>, "opsawg-chairs@ietf.org" <opsawg-chairs@ietf.org>
Subject: Re: [OPSAWG] WG adoption poll for In-Situ OAM drafts
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Quick reply,
I am in the hospital at the moment awaiting heart surgery.
So I am not going to dig up the pointers now (maybe in a few weeks if still needed).
Hope you or someone else can find the relevant pointers.
In any event, I believe that Benoit and Adrian are aware of all the other ongoing work.

Sorry,
Bert

On 21/12/2016 07:02, Carlos Pignataro (cpignata) wrote:
> Hi, Bert,
>
> Please find a couple of follow-ups inline.
>
> —
> Carlos Pignataro, carlos@cisco.com <mailto:carlos@cisco.com>
>
> /“Sometimes I use big words that I do not fully understand, to make myself sound more photosynthesis."/
>
>> On Dec 14, 2016, at 9:48 AM, Bert Wijnen (IETF) <bertietf@bwijnen.net <mailto:bertietf@bwijnen.net>> wrote:
>>
>> i am not sure if it is wise to adopt these 3 drafts as WG documents at this
>> point in time. At our WG session in Seoul, (when the WG chairs did a humm for
>> this in the session), I spoke up and stated that during the week in Seoul
>> there had been several presentations on inband OAM and Telemetry.
>
> Would it be possible for you to share pointers to  (at least a few of the several) specific presentations and Internet-Drafts that
> overlap with or complement this work?
>
> Note that the title of this documents was renamed to “In-Situ” (with thanks to Erik Nordmark for the suggestion) so as to not
> confuse with the IETF definition of “inband”.
>
>> And I suggested that it might be wise to first analyze what is available and
>> already used or tested. Once we know that, we might be in a much better
>> position to determine which type of "inband OAM" or "Telemetry" mechanism makes
>> most sense.
>>
>
> Since specific pointers on what’s available is a pre requisite to understanding the landscape, see above.
>
>> My understanding of the humm in the WG was" "is this sort of work interesting
>> and do we as a WG want to work on thos". To that question, the humm seemed to
>> indicate that we indeed do fond the work relevant and interesting and that we
>> as the OPSAWG want to work on it. I took notes during our OPSAWG session in
>> Seoul, and I wrote down on this topic of inband OAM (and that has been posted
>> as draft minutes as well):
>>
>>      Open question as where to land this work (OPS or TSV) ??
>>
>>      Joel: the actual OAM methods vary on what the transport is.
>>
>>      BW: there seem to be various telemetry ideas being presented at various places
>>          (WGs, RGs) should we get a summary of what is being discussed before we
>>           adopt a particular approach
>
> “Telemetry” is such a broadly defined word that invariably, there will be “telemetry work” everywhere. When we focus and narrow
> scope on the actual specifics of in-situ OAM, that does not seem to be the case anymore.
>
> I do not believe the question is “does the WG want to take on telemetry”.
>
>>      Daniel King: yes we have seen some in SDNRG
>>      Benoit: how do you get the data off the devices
>>              That is still to be decided
>>      Chairs: humm for: do we i(OPSAWG) want to work on telemetry
>>              conclusion: yes we do
>>      Benoit: there is a pub/subscribe which is related
>>
>> So I find it a step too quick/fast to now determine which documents to adopt
>> as WG document. Let us get (from someone versen in the field of inband OAM
>> and telemetry) get a summary of the various types of work that has already been
>> presented/proposed in the IETF (and possibly at other places) and let us then
>> see if we can choose a way forward.
>>
>
> I believe it is a fair request to compare and contrast and understand a broader picture. But that request expects more specifics
> than a perhaps someone else should do it.
>
> Given the very specific requirements detailed by operators and vendors in draft-brockners-inband-oam-requirements-02.txt, the fact
> that we had to create a new descriptor (i.e., “In-Situ”) for this approach, and lack of specifics, it seems to me that the area of
> in-situ OAM is non-overlapping with other “telemetry" potential work elsewhere.
>
> Thanks,
>
> — Carlos.
>
>> Bert
>>
>> On 07/12/2016 07:36, Zhoutianran wrote:
>>> Hi All,
>>>
>>>
>>>
>>> In Seoul, we got enough interest on the In Situ OAM work and positive response on related drafts.
>>> So this email starts a formal poll for adoption the following I-Ds.
>>>
>>>
>>>
>>> https://tools.ietf.org/html/draft-brockners-inband-oam-requirements-02.txt
>>> https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.txt
>>> https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.txt
>>>
>>>
>>>
>>> To be efficient, we have the poll for three I-Ds in one thread. But you can give your opinion on each of them. And the result is per
>>> I-D.
>>>
>>>
>>>
>>> The question is:
>>> Do you think that the WG should adopt all or some of these drafts?
>>>
>>>
>>>
>>> It would be helpful if you could indicate whether you have read the drafts. If "yes", would you like to review the drafts and help
>>> to improve the drafts? If "no", it is important that you provide reasons.
>>>
>>>
>>>
>>> This poll will last for two weeks, ending on Tuesday, December 20.
>>>
>>>
>>> Thanks,
>>> Tianran & Warren
>>>
>>>
>>>
>>> _______________________________________________
>>> OPSAWG mailing list
>>> OPSAWG@ietf.org
>>> https://www.ietf.org/mailman/listinfo/opsawg
>>>
>>
>> _______________________________________________
>> OPSAWG mailing list
>> OPSAWG@ietf.org <mailto:OPSAWG@ietf.org>
>> https://www.ietf.org/mailman/listinfo/opsawg
>


From nobody Thu Dec 22 23:33:27 2016
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From: "S.V.R.Anand" <anand@ece.iisc.ernet.in>
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Subject: [OPSAWG]  WG adoption poll for In-Situ OAM drafts
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Hi,

I support the adoption of all the drafts.

The In-situ OAM Edge-to-Edge option, in particular, is very useful to our
work [1] as it allows us to carry packet expiration time that helps intermediate routers
to make routing and forwarding scheduling decisions to support latency
sensitive application flows, thereby realising deterministic networking.
In this context, there has been an interesting discussion [2] on this topic on the 6tisch
mailing list few months back.

Refs :

[1] https://tools.ietf.org/html/draft-lijo-6lo-expiration-time-00
[2] https://www.ietf.org/mail-archive/web/6tisch/current/msg04742.html


Anand




On 12/7/16 01:36, Zhoutianran wrote:

    Hi All,



    In Seoul, we got enough interest on the In Situ OAM work and positive
    response on related drafts.
    So this email starts a formal poll for adoption the following I-Ds.



    https://tools.ietf.org/html/draft-brockners-inband-oam-requirements-02.txt
    https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.txt
    https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.txt



    To be efficient, we have the poll for three I-Ds in one thread. But you
    can give your opinion on each of them. And the result is per I-D.



    The question is:
    Do you think that the WG should adopt all or some of these drafts?



-- 
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    <pre style="margin: 0em;">Hi,

I support the adoption of all the drafts.

The In-situ OAM Edge-to-Edge option<span class="h3"></span>, in particular, is very useful to our
work [1] as it allows us to carry packet expiration time that helps intermediate routers
to make routing and forwarding scheduling decisions to support latency 
sensitive application flows, thereby realising deterministic networking. 
In this context, there has been an interesting discussion [2] on this topic on the 6tisch 
mailing list few months back.

Refs :

[1] <a class="moz-txt-link-freetext" href="https://tools.ietf.org/html/draft-lijo-6lo-expiration-time-00">https://tools.ietf.org/html/draft-lijo-6lo-expiration-time-00</a>
[2] <a class="moz-txt-link-freetext" href="https://www.ietf.org/mail-archive/web/6tisch/current/msg04742.html">https://www.ietf.org/mail-archive/web/6tisch/current/msg04742.html</a>


Anand




On 12/7/16 01:36, Zhoutianran wrote:
</pre>
    <blockquote style="border-left: #5555EE solid 0.2em; margin: 0em;
      padding-left: 0.85em">
      <pre style="margin: 0em;">Hi All,



In Seoul, we got enough interest on the In Situ OAM work and positive
response on related drafts.
So this email starts a formal poll for adoption the following I-Ds.



<a rel="nofollow" href="https://tools.ietf.org/html/draft-brockners-inband-oam-requirements-02.txt">https://tools.ietf.org/html/draft-brockners-inband-oam-requirements-02.txt</a>
<a rel="nofollow" href="https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.txt">https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.txt</a>
<a rel="nofollow" href="https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.txt">https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.txt</a>



To be efficient, we have the poll for three I-Ds in one thread. But you
can give your opinion on each of them. And the result is per I-D.



The question is:
Do you think that the WG should adopt all or some of these drafts?


</pre>
    </blockquote>
  <br />-- 
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From: "ram krishnan" <ramkri123@gmail.com>
To: <opsawg@ietf.org>
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Subject: [OPSAWG] FW: FW:  WG adoption poll for In-Situ OAM drafts
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I support adoption of these drafts.=20

=20

In addition, I would like bring a closely related draft to your =
attention --  =
<https://datatracker.ietf.org/doc/draft-krishnan-opsawg-in-band-pro-sla/?=
include_text=3D1> =
https://datatracker.ietf.org/doc/draft-krishnan-opsawg-in-band-pro-sla/?i=
nclude_text=3D1

=20

This draft brings some important contributions in the area of =
requirements and data formats for

-          IPSEC tunneling=20

-          Pre-construction/minimizing of Telemetry header

-          Service chaining =E2=80=93 benefits beyond the network =
interconnect

=20

I was hoping to get this draft out by Seoul timeframe and make it in =
person, unfortunately couldn=E2=80=99t. Looking forward to discussions =
and collaboration on this interesting topic.

=20

Thanks,

Ramki

=20

---------- Forwarded message ----------
From: ram krishnan <ramkri123@gmail.com <mailto:ramkri123@gmail.com> >
Date: Fri, Dec 23, 2016 at 1:59 PM
Subject: FW: [OPSAWG] WG adoption poll for In-Situ OAM drafts
To: Ram Krishnan <ramkri123@gmail.com <mailto:ramkri123@gmail.com> >

=20

 On 12/7/16 01:36, Zhoutianran wrote:

Hi All,
=20
=20
=20
In Seoul, we got enough interest on the In Situ OAM work and positive
response on related drafts.
So this email starts a formal poll for adoption the following I-Ds.
=20
=20
=20
 =
<https://tools.ietf.org/html/draft-brockners-inband-oam-requirements-02.t=
xt> =E2=80=8B=E2=80=8B
https://tools.ietf.org/html/draft-brockners-inband-oam-requirements-02.tx=
t
https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.txt
https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.txt
=20
=20
=20
To be efficient, we have the poll for three I-Ds in one thread. But you
can give your opinion on each of them. And the result is per I-D.
=20
=20
=20
The question is:
Do you think that the WG should adopt all or some of these drafts?
=20
=20


--=20
This message has been scanned for viruses and=20
dangerous content by  <http://www.mailscanner.info/> MailScanner, and is =

believed to be clean.=20





=20

--=20

Thanks,=20

Ramki


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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-family:"Calibri",sans-serif'>I support adoption of these =
drafts. <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-family:"Calibri",sans-serif'><o:p>&nbsp;</o:p></span></p><p=
 class=3DMsoNormal><span style=3D'font-family:"Calibri",sans-serif'>In =
addition, I would like bring a closely related draft to your attention =
-- </span><a =
href=3D"https://datatracker.ietf.org/doc/draft-krishnan-opsawg-in-band-pr=
o-sla/?include_text=3D1"><span =
style=3D'font-family:"Calibri",sans-serif;color:windowtext'>https://datat=
racker.ietf.org/doc/draft-krishnan-opsawg-in-band-pro-sla/?include_text=3D=
1</span></a><span =
style=3D'font-family:"Calibri",sans-serif'><o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-family:"Calibri",sans-serif'><o:p>&nbsp;</o:p></span></p><p=
 class=3DMsoNormal><span style=3D'font-family:"Calibri",sans-serif'>This =
draft brings some important contributions in the area of requirements =
and data formats for<o:p></o:p></span></p><p class=3DMsoListParagraph =
style=3D'margin-left:.25in;text-indent:-.25in;mso-list:l0 level1 =
lfo2'><![if !supportLists]><span =
style=3D'font-family:"Calibri",sans-serif'><span =
style=3D'mso-list:Ignore'>-<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><span =
style=3D'font-family:"Calibri",sans-serif'>IPSEC tunneling =
<o:p></o:p></span></p><p class=3DMsoListParagraph =
style=3D'margin-left:.25in;text-indent:-.25in;mso-list:l0 level1 =
lfo2'><![if !supportLists]><span =
style=3D'font-family:"Calibri",sans-serif'><span =
style=3D'mso-list:Ignore'>-<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><span =
style=3D'font-family:"Calibri",sans-serif'>Pre-construction/minimizing =
of Telemetry header<o:p></o:p></span></p><p class=3DMsoListParagraph =
style=3D'margin-left:.25in;text-indent:-.25in;mso-list:l0 level1 =
lfo2'><![if !supportLists]><span =
style=3D'font-family:"Calibri",sans-serif'><span =
style=3D'mso-list:Ignore'>-<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><span =
style=3D'font-family:"Calibri",sans-serif'>Service chaining =E2=80=93 =
benefits beyond the network interconnect<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-family:"Calibri",sans-serif'><o:p>&nbsp;</o:p></span></p><p=
 class=3DMsoNormal><span style=3D'font-family:"Calibri",sans-serif'>I =
was hoping to get this draft out by Seoul timeframe and make it in =
person, unfortunately couldn=E2=80=99t. Looking forward to discussions =
and collaboration on this interesting topic.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-family:"Calibri",sans-serif'><o:p>&nbsp;</o:p></span></p><p=
 class=3DMsoNormal><span =
style=3D'font-family:"Calibri",sans-serif'>Thanks,<o:p></o:p></span></p><=
p class=3DMsoNormal><span =
style=3D'font-family:"Calibri",sans-serif'>Ramki<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-family:"Calibri",sans-serif'><o:p>&nbsp;</o:p></span></p><d=
iv><p class=3DMsoNormal style=3D'margin-bottom:12.0pt'>---------- =
Forwarded message ----------<br>From: <b>ram krishnan</b> &lt;<a =
href=3D"mailto:ramkri123@gmail.com">ramkri123@gmail.com</a>&gt;<br>Date: =
Fri, Dec 23, 2016 at 1:59 PM<br>Subject: FW: [OPSAWG] WG adoption poll =
for In-Situ OAM drafts<br>To: Ram Krishnan &lt;<a =
href=3D"mailto:ramkri123@gmail.com">ramkri123@gmail.com</a>&gt;<o:p></o:p=
></p><div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif'>&nbsp;</span>=
<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif'>&nbsp;</span>=
On 12/7/16 01:36, Zhoutianran wrote:<o:p></o:p></p><blockquote =
style=3D'border:none;border-left:solid #5555EE 2.25pt;padding:0in 0in =
0in =
10.0pt;margin-left:0in;margin-top:5.0pt;margin-right:0in;margin-bottom:5.=
0pt'><pre>Hi =
All,<o:p></o:p></pre><pre>&nbsp;<o:p></o:p></pre><pre>&nbsp;<o:p></o:p></=
pre><pre>&nbsp;<o:p></o:p></pre><pre>In Seoul, we got enough interest on =
the In Situ OAM work and positive<o:p></o:p></pre><pre>response on =
related drafts.<o:p></o:p></pre><pre>So this email starts a formal poll =
for adoption the following =
I-Ds.<o:p></o:p></pre><pre>&nbsp;<o:p></o:p></pre><pre>&nbsp;<o:p></o:p><=
/pre><pre>&nbsp;<o:p></o:p></pre><div><pre><a =
href=3D"https://tools.ietf.org/html/draft-brockners-inband-oam-requiremen=
ts-02.txt" target=3D"_blank"><span style=3D'font-family:"Cambria =
Math",serif'>=E2=80=8B=E2=80=8B</span></a><span =
class=3DMsoHyperlink><o:p></o:p></span></pre></div><pre><a =
href=3D"https://tools.ietf.org/html/draft-brockners-inband-oam-requiremen=
ts-02.txt" =
target=3D"_blank">https://tools.ietf.org/html/draft-brockners-inband-oam-=
requirements-02.txt</a><o:p></o:p></pre><pre><a =
href=3D"https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.tx=
t" =
target=3D"_blank">https://tools.ietf.org/html/draft-brockners-inband-oam-=
data-02.txt</a><o:p></o:p></pre><pre><a =
href=3D"https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.t=
xt" =
target=3D"_blank">https://tools.ietf.org/html/draft-brockners-proof-of-tr=
ansit-02.txt</a><o:p></o:p></pre><pre>&nbsp;<o:p></o:p></pre><pre>&nbsp;<=
o:p></o:p></pre><pre>&nbsp;<o:p></o:p></pre><pre>To be efficient, we =
have the poll for three I-Ds in one thread. But =
you<o:p></o:p></pre><pre>can give your opinion on each of them. And the =
result is per =
I-D.<o:p></o:p></pre><pre>&nbsp;<o:p></o:p></pre><pre>&nbsp;<o:p></o:p></=
pre><pre>&nbsp;<o:p></o:p></pre><pre>The question =
is:<o:p></o:p></pre><pre>Do you think that the WG should adopt all or =
some of these =
drafts?<o:p></o:p></pre><pre>&nbsp;<o:p></o:p></pre><pre>&nbsp;<o:p></o:p=
></pre></blockquote><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#888888'><br>-- <br>This message has been scanned for =
viruses and <br>dangerous content by </span><a =
href=3D"http://www.mailscanner.info/" =
target=3D"_blank"><b>MailScanner</b></a><span style=3D'color:#888888'>, =
and is <br>believed to be clean. =
<o:p></o:p></span></p></div></div></div><p class=3DMsoNormal><br><br =
clear=3Dall><o:p></o:p></p><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><p class=3DMsoNormal>-- =
<o:p></o:p></p><div><div><p =
class=3DMsoNormal>Thanks,&nbsp;<o:p></o:p></p><div><p =
class=3DMsoNormal>Ramki<o:p></o:p></p></div></div></div></div></body></ht=
ml>
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From nobody Sun Dec 25 14:23:57 2016
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From: "Adrian Farrel" <adrian@olddog.co.uk>
To: "'Carlos Pignataro \(cpignata\)'" <cpignata@cisco.com>
References: <BBA82579FD347748BEADC4C445EA0F21A22793F7@NKGEML515-MBX.china.huawei.com> <09f201d2571f$dd023dc0$9706b940$@olddog.co.uk> <BBEB3075-E3A1-4479-A95F-34677A2966CD@cisco.com>
In-Reply-To: <BBEB3075-E3A1-4479-A95F-34677A2966CD@cisco.com>
Date: Sun, 25 Dec 2016 22:23:18 -0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/opsawg/CBeI9NjztqArfBfgIWsykOoYolU>
Cc: opsawg@ietf.org, opsawg-chairs@ietf.org
Subject: Re: [OPSAWG] WG adoption poll for In-Situ OAM drafts
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And just replying to the other email in the branched thread...

>> I am somewhat nervous about the overlap between this and OAM work=20
>> undertaken in a number of working groups chiefly in the Routing Area,
>> and I hope there can be some careful coordination.=20
>
> I believe the potentially perceived overlap is not real, and =
I=E2=80=99m not nervous about it.
>
> I understand the word =E2=80=9COAM=E2=80=9D is overlapping with work =
happening elsewhere inside
> and outside the IETF. However, when we look right underneath the thin =
surface, the
> overlap quickly tends to zero.
>
> Looking at the OAM work in the RTG Area, and in particular the RTG-AD =
chartered
> Design Team, it seems to extend as far as defining an OAM protocol =
indication
> header pre-pended to specific OAM probe packets, modeled after the =
MPLS G-ACh.

That's fine. And it really shouldn't be hard or time-consuming to close =
this loop.
Two groups of people doing work. One group looks at the other's work and =
says "no overlap." Let's just ask the other group (perhaps through an AD =
or a DT lead?)

[snip]

>> I think that the data format document may be close to being ready for =
adoption,
>> but I think that there are some largish wrinkles that could do with =
being ironed
>> out first. Chief among these are:
>
> I believe that these are four great pieces of input, which should be =
ironed out with
> WG input as a WG document.

On the whole I am not someone who believes we should try to polish a =
document before adoption. in fact that annoys me. But see my note below =
on why I think these things should be ironed out first.

We seem to agree that either fixes or some direction would be easy to =
apply, so perhaps we can work on that and then adopt?

> And that:
>> - A thorough investigation of the numeric impact on the amount of =
data that can be sent.
>>  In other words, the change to the effective MTU
>
> as an adoption poll, this is an area that would use WG input once =
adopted.

So, I think you are saying that if, once adopted we found that this =
approach required adding 1024 bytes to every packet [deliberately crass =
example!] the WG would be happy to ditch a WG draft. My (sad) experience =
is that once a document is adopted it has a sad an unfortunate life of =
its own.=20

But, hey, this one isn't hard to resolve. We have a packet format and =
some code. So it is going to be really easy to say (ball park) how many =
bytes we're talking of adding into a data packet, and (roughly) how many =
packets in a flow this would be done to. Then everyone can quickly see =
that they are OK with the idea and we can move forward.

>> - The Abstract specifically says how encapsulation will be managed =
for IPv6.
>> Not only does the document later say that this is out of scope, but =
the
>> mechanism proposed in the Abstract is one that worries me.
>
> This is a quick fix. But yes, needs to be fixed :-)

Good. So just do it :-)
But which way do you intend to fix it? Is v6 in or out of scope?

>> - I don't like that the OAM only works if every node on the path
>> supports it. I would like for us to achieve some form of comfortable
>> b/w compatibility.
>
> I would state this quite differently. iOAM does not stop working in a
> brownfield, or when only some nodes support it.=20
>
> It is, as such, a backwards compatible approach, in which legacy nodes
> are transparent.
>
> But for new features we need to have new code, and here a good
> thing is that there is running code.

That is entirely good and proper.

Apologies, I may have misread the last paragraph in section 3.  I can't =
otherwise find anything that firmly says what I thought I had read =
although 3.1 does say...
   "In-situ OAM tracing data" is expected to be collected at every node
   that a packet traverses, i.e., in a typical deployment all nodes in
   an in-situ OAM-domain would participate in in-situ OAM and thus be
   in-situ OAM transit nodes, in-situ OAM encapsulating or in-situ OAM
   decapsulating nodes.
...which is probably a little stronger than intended.

Anyway, it's enough that you say brownfield progressive deployment is =
intended. Hopefully adding that note to the document is easy and we can =
work on the details later.

>> - As an "experiment" I would like to understand how the experiment =
would be
>> conducted and what would constitute success
>
> The experiment is ongoing in FD.io and other places, and hopefully the =
IETF does
> not fall behind. But this does beg another question for the WG, which =
is regarding
> the best intended status, and we would like WG input for it.

Yes, a good question.
And nothing prevents a WG moving a document from one status to another =
if there is consensus.

I think running code is great, but it doesn't quite answer the =
questions, "How will you judge the success of the experiment?" and, =
"What is the nature of the garden wall you mean to employ?"=20

>> Why do I think these points should be addressed before adoption? I am =
worried that
>> without looking at them first there will be an assumption that the =
document's is already
>> set and 'radical' changes cannot be made.=20
>
> The question on adoption as you know is whether the document provides =
a solid basis as
> a starting point, not if it is fixed.

Agreed.
And I am not asking for a fixed document. I am just asking what our =
direction is intended to be?
I'm sure our intention is not simply to document some running code.

So it's just a matter of a few lines of text to make sure we're all =
aligned on purpose and then away we go.
Perhaps we have already spent longer discussing than it would have taken =
to tweak the document as I suggested...

>> I think that my points can be handled by:
>> - Adding a section on "MTU Concerns" that provides a pointer to the =
relevant
>>  part of the requirements draft, and offers up some basic maths on =
the expected
>>  size of OAM information in a packet.
>> - Removing the offending text from the Abstract
>> - Adding a section on b/w compatibility (maybe just as a placeholder) =
and cleaning
>>   up the text that requires every node on the path to support in-situ =
OAM.
>> - Adding a section scoping the experiment that the authors think they =
want the
>> WG to perform.
>
> These seem to be all good areas to work on and add. And in fact would =
love to have
> your text on the MTU area.

Hmmm. I could take a stab after the break, but don't let me be the =
bottleneck.
If you have the code running it will be really simple to say things like =
the following and fill in the blanks.

"OAM trace is likely to add n bytes per hop. As noted, the maximum =
diameter of the network should be known in advance because of the total =
data needed to capture a path trace across the OAM domain. A reasonable =
assumption might be that an in-situ OAM has diameter of x hops so that =
tracing the route would add nx bytes and therefore applying this =
approach in networks where the MTU is less than y would be ill advised.

Furthermore, it should be noted that if in-situ OAM is applied to all =
packets in a flow it will reduce throughput by the corresponding number =
of OAM bytes. Therefore it is important to consider whether in-situ OAM =
can be applied to a <threshold> and that <configuration>. However, proof =
of transit may need to be applied to all packets if it forms part of =
validating a service or ensuring security, and so both the MTU and =
throughput issue may apply.

Section 4.2 of [in-situ-reqs] discusses the implications for MTU of =
carrying in-situ OAM."

>> As for the proof of transit work, I think it is a bit of a mess at =
the moment. It=20
>> seems to be growing new approaches and options, each with drawbacks =
and
>> issues. And I'm not clear on the objectives.  This might be handled =
as with the
>> previous document by describing and scoping the experiment, but as =
currently
>> written, it would appear that the intention is to research a number =
of potential
>> approaches to proof of transit rather than to experiment with a =
particular
>> protocol solution, and that might make the document better suited to =
the
>> NMRG. So I would like to apply a bit more caution to that document.
>
> That=E2=80=99s interesting, because the Abstract is here ask well =
quite prescriptive:
>
>   This document defines
>   mechanisms to securely prove that traffic transited said defined
>   path.  These mechanisms allow to securely verify whether, within a
>   given path, all packets traversed all the nodes that they are
>   supposed to visit.

Per my other email, part of the problem is with the plurality of =
"mechanisms". Is the intention to research the different mechanisms and =
narrow down, or is it to have a single solution with multiple options =
depending on the precise features that the application demands?

Cheers,
Adrian


From nobody Sun Dec 25 14:24:04 2016
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From: "Adrian Farrel" <adrian@olddog.co.uk>
To: "'Carlos Pignataro \(cpignata\)'" <cpignata@cisco.com>, "'Zhoutianran'" <zhoutianran@huawei.com>
References: <BBA82579FD347748BEADC4C445EA0F21A22793F7@NKGEML515-MBX.china.huawei.com> <09f201d2571f$dd023dc0$9706b940$@olddog.co.uk> <BBA82579FD347748BEADC4C445EA0F21A2282E7C@NKGEML515-MBX.china.huawei.com> <6BBE805B-0929-49A1-BAA3-570E4C25B0EF@cisco.com>
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Date: Sun, 25 Dec 2016 22:23:18 -0000
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Subject: Re: [OPSAWG] WG adoption poll for In-Situ OAM drafts
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Oh, how I hate HTML emails!

Hi Carlos,

>>> I am somewhat nervous about the overlap between this and OAM work=20
>>> undertaken in a number of working groups chiefly in the Routing =
Area,
>>> and I hope there can be some careful coordination.=20
>>=20
>> I also asked the authors about this question. Especially there is an =
overlay
>> OAM design team in routing area. Their drafts and outputs show they =
also
>> want to standardize a common OAM header for various transport.=20
>=20
> It is indeed a fair question and I appreciate seeing it explicitly. =
The common
> OAM header for OAM probes on disparate transports seems orthogonal to
> the in-situ OAM (iOAM) requirement and approach.=20

So, I'm just wondering out loud...
If there is a common generic format for some OAM data being developed, =
would it be sensible to use any of the pieces that can be used? Perhaps =
there are none - should be easy to establish.

I suspect that what you are doing is distinct from any of the MPLS OAM =
developed over the last 5 years, but it may be worth consulting with =
them as to why they considered it necessary to use separate packets and =
not "overload" (apologies for the implicit negativity in that term) data =
packets.

> The in-situ OAM work also has code at https://fd.io/.

Good. Code is nice.

>>> My feeling is that we should start with the requirements draft at =
once.

[snip]

>>> I think that the data format document may be close to being ready =
for adoption

[snip]

>>> As for the proof of transit work, I think it is a bit of a mess at =
the
>>> moment. It seems to be growing new approaches and options,=20
>>> each with drawbacks and issues. And I'm not clear on the objectives.
>>> This might be handled as with the previous document by describing
>>> and scoping the experiment, but as currently written, it would =
appear
>>> that the intention is to research a number of potential approaches =
to
>>> proof of transit rather than to experiment with a particular =
protocol
>>> solution, and that might make the document better suited to the
>>> NMRG. So I would like to apply a bit more caution to that document.
>>
>> In my opinion, the objective of the POT draft is to demonstrate a =
solution
>> for an applicable use case with in-situ OAM.
>
> That is correct.=20

Weeeeeell, doesn't the current document describe a mechanism, an =
enhanced mechanism, a final version, and an alternative approach?

That would be very good if the intention is to kick some ideas around =
the park and see what stands up, what features work, and what additions =
we need. What we would need to do in that case is decide what our =
objectives are (trusted or non-trusted players, proof of order or just =
proof of transit, proof of adjacency / non-insertion, etc., etc.) so =
that we can work on the solution for our needs.

The feeling I get from the document is that it is (and has been for a =
few revisions) pushing ideas around to see what might be good and what =
needs more work. That is actually great, but (again) our assessment of =
what is "good" depends on what objectives we're trying to meet.  I =
suppose my nervousness may be that if we adopt this document as is, then =
weeding out features or approaches may be hard because their inclusion =
at the time of adoption could be claimed as consensus in the WG that =
they are things we should be doing. I would like us just to pause a =
moment and agree the objectives. Then we'd be good to go.

Cheers,
Adrian


From nobody Sun Dec 25 22:57:21 2016
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From: Zhoutianran <zhoutianran@huawei.com>
To: ram krishnan <ramkri123@gmail.com>, "opsawg@ietf.org" <opsawg@ietf.org>
Thread-Topic: [OPSAWG] FW: FW:  WG adoption poll for In-Situ OAM drafts
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From: Santosh P K <santosh.pallagatti@gmail.com>
Date: Mon, 26 Dec 2016 23:55:47 +0530
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Subject: Re: [OPSAWG] WG adoption poll for In-Situ OAM drafts
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>>The question is:

>>Do you think that the WG should adopt all or some of these drafts?

 Yes. I have read these drafts and I support adoption of all three drafts
as WG documents.

>>It would be helpful if you could indicate whether you have read the
drafts. If "yes", would >>you like to review the drafts and help to improve
the drafts? If "no", it is important that >>you provide reasons.


Yes.


Thanks

Santosh P K

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<div dir=3D"ltr"><p style=3D"color:rgb(0,0,0);font-family:tahoma;font-size:=
13.3333px"><span style=3D"font-size:13.3333px">&gt;&gt;The question is:</sp=
an><br></p><p style=3D"color:rgb(0,0,0);font-family:tahoma;font-size:13.333=
3px">&gt;&gt;Do you think that the WG should adopt all or some of these dra=
fts?</p><p style=3D"color:rgb(0,0,0);font-family:tahoma;font-size:13.3333px=
">=C2=A0Yes. I have read these drafts and I support adoption of all three d=
rafts as WG documents.=C2=A0</p><p style=3D"color:rgb(0,0,0);font-family:ta=
homa;font-size:13.3333px">&gt;&gt;It would be helpful if you could indicate=
 whether you have read the drafts. If &quot;yes&quot;, would &gt;&gt;you li=
ke to review the drafts and help to improve the drafts? If &quot;no&quot;, =
it is important that &gt;&gt;you provide reasons.</p><p style=3D"color:rgb(=
0,0,0);font-family:tahoma;font-size:13.3333px"><br></p><p style=3D"color:rg=
b(0,0,0);font-family:tahoma;font-size:13.3333px">Yes.</p><p style=3D"color:=
rgb(0,0,0);font-family:tahoma;font-size:13.3333px"><br></p><p style=3D"colo=
r:rgb(0,0,0);font-family:tahoma;font-size:13.3333px">Thanks</p><p style=3D"=
color:rgb(0,0,0);font-family:tahoma;font-size:13.3333px">Santosh P K=C2=A0<=
/p></div>

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From: Nobo Akiya <nobo.akiya.dev@gmail.com>
Date: Tue, 27 Dec 2016 13:37:39 +0900
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To: Zhoutianran <zhoutianran@huawei.com>
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Cc: "opsawg@ietf.org" <opsawg@ietf.org>, "opsawg-chairs@ietf.org" <opsawg-chairs@ietf.org>
Subject: Re: [OPSAWG] WG adoption poll for In-Situ OAM drafts
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Hi Tianran & Warren,


I agree with the intents/benefits that proposal can offer.


I do worry about added bytes required to every In Situ packet (i.e., MTU).


(1) Is the proposal being too flexible? For example, data like opaque
application data can be powerful, but it can easily eat up lots of MTU.
OAM-trace-type can complicate implementations as included data (and their
offset) can vary for each bit combinations.


(2) Are all data fields defined as right size? Considering that node ID is
defined as 24 bits and interface ID is defined as 16 bits, I'm assuming
that they are IDs defined by a centralized controller/orchestrator. If so,
do they really need all to be that large?


One thought is to start off with couple of "tight" data types (not flexible
& least bits required) which addresses majority and/or high priority use
cases. With this approach, it will also simplify the "error handlings"
which the documents are lacking (and needs some attention if documents are
adopted by the WG).


> Do you think that the WG should adopt all or some of these drafts?


RE:
https://tools.ietf.org/html/draft-brockners-inband-oam-requirements-02.txt


Yes, I'd like to see this work moving forward.


RE: https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.txt


Yes, I'd like to see this work moving forward.


RE: https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.txt


No, I'm not quite sure why this document is needed.


> It would be helpful if you could indicate whether you have read the
drafts. If "yes", would you like to review the drafts and help to improve
the drafts?


Yes, I have read the documents. For the first two documents, I do plan to
further review.


Regards,

Nobo

On Wed, Dec 7, 2016 at 3:36 PM, Zhoutianran <zhoutianran@huawei.com> wrote:

> Hi All,
>
>
>
> In Seoul, we got enough interest on the In Situ OAM work and positive
> response on related drafts.
> So this email starts a formal poll for adoption the following I-Ds.
>
>
>
> https://tools.ietf.org/html/draft-brockners-inband-oam-requirements-02.txt
> https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.txt
> https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.txt
>
>
>
> To be efficient, we have the poll for three I-Ds in one thread. But you
> can give your opinion on each of them. And the result is per I-D.
>
>
>
> The question is:
> Do you think that the WG should adopt all or some of these drafts?
>
>
>
> It would be helpful if you could indicate whether you have read the
> drafts. If "yes", would you like to review the drafts and help to improve
> the drafts? If "no", it is important that you provide reasons.
>
>
>
> This poll will last for two weeks, ending on Tuesday, December 20.
>
>
> Thanks,
> Tianran & Warren
>
> _______________________________________________
> OPSAWG mailing list
> OPSAWG@ietf.org
> https://www.ietf.org/mailman/listinfo/opsawg
>
>

--001a11444f22941cac05449c69b3
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">







<p class=3D"gmail-p1"><span class=3D"gmail-s1">Hi Tianran &amp; Warren,</sp=
an></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">I agree with the intents/ben=
efits that proposal can offer.</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">I do worry about added bytes=
 required to every In Situ packet (i.e., MTU).</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">(1) Is the proposal being to=
o flexible? For example, data like opaque application data can be powerful,=
 but it can easily eat up lots of MTU. OAM-trace-type can complicate implem=
entations as included data (and their offset) can vary for each bit combina=
tions.</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">(2) Are all data fields defi=
ned as right size? Considering that node ID is defined as 24 bits and inter=
face ID is defined as 16 bits, I&#39;m assuming that they are IDs defined b=
y a centralized controller/orchestrator. If so, do they really need all to =
be that large?</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">One thought is to start off =
with couple of &quot;tight&quot; data types (not flexible &amp; least bits =
required) which addresses majority and/or high priority use cases. With thi=
s approach, it will also simplify the &quot;error handlings&quot; which the=
 documents are lacking (and needs some attention if documents are adopted b=
y the WG).</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt; Do you think that the W=
G should adopt all or some of these drafts?</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">RE: <a href=3D"https://tools=
.ietf.org/html/draft-brockners-inband-oam-requirements-02.txt">https://tool=
s.ietf.org/html/draft-brockners-inband-oam-requirements-02.txt</a></span></=
p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">Yes, I&#39;d like to see thi=
s work moving forward.</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">RE: <a href=3D"https://tools=
.ietf.org/html/draft-brockners-inband-oam-data-02.txt">https://tools.ietf.o=
rg/html/draft-brockners-inband-oam-data-02.txt</a></span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">Yes, I&#39;d like to see thi=
s work moving forward.</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">RE: <a href=3D"https://tools=
.ietf.org/html/draft-brockners-proof-of-transit-02.txt">https://tools.ietf.=
org/html/draft-brockners-proof-of-transit-02.txt</a></span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">No, I&#39;m not quite sure w=
hy this document is needed.</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt; It would be helpful if =
you could indicate whether you have read the drafts. If &quot;yes&quot;, wo=
uld you like to review the drafts and help to improve the drafts?</span></p=
>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">Yes, I have read the documen=
ts. For the first two documents, I do plan to further review.</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">Regards,</span></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">Nobo</span></p></div><div cl=
ass=3D"gmail_extra"><br><div class=3D"gmail_quote">On Wed, Dec 7, 2016 at 3=
:36 PM, Zhoutianran <span dir=3D"ltr">&lt;<a href=3D"mailto:zhoutianran@hua=
wei.com" target=3D"_blank">zhoutianran@huawei.com</a>&gt;</span> wrote:<br>=
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">





<div>
<div style=3D"direction:ltr;font-family:Tahoma;color:#000000;font-size:10pt=
">
<p>Hi All,</p>
<p>=C2=A0</p>
<p>In Seoul, we got enough interest on the In Situ OAM work and positive re=
sponse on related drafts.<br>
So this email starts a formal poll for adoption the following I-Ds.</p>
<p>=C2=A0</p>
<p><a href=3D"https://tools.ietf.org/html/draft-brockners-inband-oam-requir=
ements-02.txt" target=3D"_blank">https://tools.ietf.org/html/<wbr>draft-bro=
ckners-inband-oam-<wbr>requirements-02.txt</a><br>
<a href=3D"https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.t=
xt" target=3D"_blank">https://tools.ietf.org/html/<wbr>draft-brockners-inba=
nd-oam-<wbr>data-02.txt</a>
<br>
<a href=3D"https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.=
txt" target=3D"_blank">https://tools.ietf.org/html/<wbr>draft-brockners-pro=
of-of-<wbr>transit-02.txt</a></p>
<p>=C2=A0</p>
<p>To be efficient, we have the poll for three I-Ds in one thread. But you =
can give your opinion on each of them. And the result is per I-D.</p>
<p>=C2=A0</p>
<p>The question is:<br>
Do you think that the WG should adopt all or some of these drafts?</p>
<p>=C2=A0</p>
<p>It would be helpful if you could indicate whether you have read the draf=
ts. If &quot;yes&quot;, would you like to review the drafts and help to imp=
rove the drafts? If &quot;no&quot;, it is important that you provide reason=
s.</p>
<p>=C2=A0</p>
<p>This poll will last for two weeks, ending on Tuesday, December 20.</p>
<p>=C2=A0<br>
Thanks,<br>
Tianran &amp; Warren</p>
</div>
</div>

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

--001a11444f22941cac05449c69b3--


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Date: Tue, 27 Dec 2016 13:45:28 +0900
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Subject: [OPSAWG] Comments on draft-brockners-inband-oam-* documents
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Hi Authors,


I'm happy to see interesting work in the OAM area :)


Comments on draft-brockners-inband-oam-requirements-02:


>    o  Low-power Networks: Include application level OAM information

>      (e.g., battery charge level, cache or buffer fill level) into data

>      traffic to avoid sending extra OAM traffic which incur an extra

>      cost on the devices.  Using the battery charge level as example,

>      one could avoid sending extra OAM packets just to communicate

>      battery health, and as such would save battery on sensors.


Are you placing above use case in this document because you the protocol is
capable of doing this, or do you consider it to be a hard requirement for
in-band OAM?


Comments on draft-brockners-inband-oam-data-02:


> queue depth:  4-octet unsigned integer field.  This field indicates

>      the length of the egress interface queue of the interface where

>      the packet is forwarded out of.


Many interfaces can have multiple queues (e.g., multiple unicast queues and
multiple multicast queues). Won't be need an queue ID to indicate which
"queue" above is refering to?


>      node_id:  3-octet unsigned integer.  Node identifier field to

>         uniquely identify a node within in-situ OAM domain.  The

>         procedure to allocate, manage and map the node_ids is beyond

>         the scope of this document.

...

>       node_id:  7-octet unsigned integer.  Node identifier field to

>         uniquely identify a node within in-situ OAM domain.  The

>         procedure to allocate, manage and map the node_ids is beyond

>         the scope of this document.


Why is node_id defined as different size?

Same with if_id (4 bytes vs. 8 bytes).


>    Maximum Length:  8-bit unsigned integer.  This field specifies the

>      maximum length of the node data list in octets.  Given that the

>      sender knows the minimum path MTU, the sender can set the maximum

>      of node data bytes allowed before exceeding the MTU.  Thus, a

>      simple comparison between "Opt data Len" and "Max Length" allows

>      to decide whether or not data could be added.


How does the sender know this? PMTUD is a discovery of MTU on a path (i.e.,
point-to-point) and not the entire network domain. Meaning PMTUD is not
completely accurate, as a path a packet can take can change at anytime.
Does a centralized controller/orchestrator educate every sender?


>    OAM-trace-type:  16-bit identifier of a particular trace element

>      variant.


Offset will depend on which bits are set. Typically it is much easier to
implement if one option type having fixed data at fixed locations. I'm sure
"smart programmable chip" can handle this, but I feel that we are trying to
be too flexible here. Thoughts?


General comments:


- When a packet traverses a LAG, it would be good to clarify the expected
if_id to be used.

- When a packet traverses a virtualized environment, it would be good to
clarify the expected behavior of each physical/virtual node.- I feel that
much of "error" cases are lacking in the document. It would be good to
clarify how each node need to behave when there are errors. For example, if
a node receives an In Situ OAM packet with "overflow" bit already set but
can still add more data, do you expect this node to also skip or do you
expect this node add the data and clear the "overflow" bit?


Regards,

Nobo

--001a11c3b35881480c05449c8534
Content-Type: text/html; charset=UTF-8
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<div dir=3D"ltr">







<p class=3D"gmail-p1"><span class=3D"gmail-s1">Hi Authors,</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">I&#39;m happy to see interes=
ting work in the OAM area :)</span></p><p class=3D"gmail-p1"><span class=3D=
"gmail-s1"><br></span></p><p class=3D"gmail-p1"><span class=3D"gmail-s1">Co=
mments on draft-brockners-inband-oam-requirements-02:</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt;=C2=A0 =C2=A0 o=C2=A0 Lo=
w-power Networks: Include application level OAM information</span></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt;=C2=A0 =C2=A0 =C2=A0 (e.=
g., battery charge level, cache or buffer fill level) into data</span></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt;=C2=A0 =C2=A0 =C2=A0 tra=
ffic to avoid sending extra OAM traffic which incur an extra</span></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt;=C2=A0 =C2=A0 =C2=A0 cos=
t on the devices.=C2=A0 Using the battery charge level as example,</span></=
p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt;=C2=A0 =C2=A0 =C2=A0 one=
 could avoid sending extra OAM packets just to communicate</span></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt;=C2=A0 =C2=A0 =C2=A0 bat=
tery health, and as such would save battery on sensors.</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">Are you placing above use ca=
se in this document because you the protocol is capable of doing this, or d=
o you consider it to be a hard requirement for in-band OAM?</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">Comments on draft-brockners-=
inband-oam-data-02:</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt; queue depth:=C2=A0 4-oc=
tet unsigned integer field.=C2=A0 This field indicates</span></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt;=C2=A0 =C2=A0 =C2=A0 the=
 length of the egress interface queue of the interface where</span></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt;=C2=A0 =C2=A0 =C2=A0 the=
 packet is forwarded out of.</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">Many interfaces can have mul=
tiple queues (e.g., multiple unicast queues and multiple multicast queues).=
 Won&#39;t be need an queue ID to indicate which &quot;queue&quot; above is=
 refering to?</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt;=C2=A0 =C2=A0 =C2=A0 nod=
e_id:=C2=A0 3-octet unsigned integer.=C2=A0 Node identifier field to</span>=
</p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt; =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 uniquely identify a node within in-situ OAM domain.=C2=A0 The</span>=
</p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt; =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 procedure to allocate, manage and map the node_ids is beyond</span><=
/p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt; =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 the scope of this document.</span></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">...</span></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt; =C2=A0 =C2=A0 =C2=A0 no=
de_id:=C2=A0 7-octet unsigned integer.=C2=A0 Node identifier field to</span=
></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt; =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 uniquely identify a node within in-situ OAM domain.=C2=A0 The</span>=
</p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt; =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 procedure to allocate, manage and map the node_ids is beyond</span><=
/p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt; =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 the scope of this document.</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">Why is node_id defined as di=
fferent size?</span></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">Same with if_id (4 bytes vs.=
 8 bytes).</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt;=C2=A0 =C2=A0 Maximum Le=
ngth:=C2=A0 8-bit unsigned integer.=C2=A0 This field specifies the</span></=
p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt;=C2=A0 =C2=A0 =C2=A0 max=
imum length of the node data list in octets.=C2=A0 Given that the</span></p=
>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt;=C2=A0 =C2=A0 =C2=A0 sen=
der knows the minimum path MTU, the sender can set the maximum</span></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt;=C2=A0 =C2=A0 =C2=A0 of =
node data bytes allowed before exceeding the MTU.=C2=A0 Thus, a</span></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt;=C2=A0 =C2=A0 =C2=A0 sim=
ple comparison between &quot;Opt data Len&quot; and &quot;Max Length&quot; =
allows</span></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt;=C2=A0 =C2=A0 =C2=A0 to =
decide whether or not data could be added.</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">How does the sender know thi=
s? PMTUD is a discovery of MTU on a path (i.e., point-to-point) and not the=
 entire network domain. Meaning PMTUD is not completely accurate, as a path=
 a packet can take can change at anytime. Does a centralized controller/orc=
hestrator educate every sender?</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt;=C2=A0 =C2=A0 OAM-trace-=
type:=C2=A0 16-bit identifier of a particular trace element</span></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">&gt;=C2=A0 =C2=A0 =C2=A0 var=
iant.</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">Offset will depend on which =
bits are set. Typically it is much easier to implement if one option type h=
aving fixed data at fixed locations. I&#39;m sure &quot;smart programmable =
chip&quot; can handle this, but I feel that we are trying to be too flexibl=
e here. Thoughts?</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">General comments:</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">- When a packet traverses a =
LAG, it would be good to clarify the expected if_id to be used.</span></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">- When a packet traverses a =
virtualized environment, it would be good to clarify the expected behavior =
of each physical/virtual node.- I feel that much of &quot;error&quot; cases=
 are lacking in the document. It would be good to clarify how each node nee=
d to behave when there are errors. For example, if a node receives an In Si=
tu OAM packet with &quot;overflow&quot; bit already set but can still add m=
ore data, do you expect this node to also skip or do you expect this node a=
dd the data and clear the &quot;overflow&quot; bit?</span></p>
<p class=3D"gmail-p2"><span class=3D"gmail-s1"></span><br></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">Regards,</span></p>
<p class=3D"gmail-p1"><span class=3D"gmail-s1">Nobo</span></p></div>

--001a11c3b35881480c05449c8534--


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Subject: [OPSAWG]  WG adoption poll for In-Situ OAM drafts
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Hi,
=20
I support the adoption of all the drafts.
=20
This would be useful in our work also, where we are trying to build algorit=
hms for LLNs based on the delay incurred during the transit of a packet fro=
m the sender to receiver.=20
=20

Thanks & Regards,

Lijo Thomas=20

=20

=20
On 12/7/16 01:36, Zhoutianran wrote:

Hi All,
=20
=20
=20
In Seoul, we got enough interest on the In Situ OAM work and positive
response on related drafts.
So this email starts a formal poll for adoption the following I-Ds.
=20
=20
=20
https://tools.ietf.org/html/draft-brockners-inband-oam-requirements-02.txt
https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.txt
https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.txt
=20
=20
=20
To be efficient, we have the poll for three I-Ds in one thread. But you
can give your opinion on each of them. And the result is per I-D.
=20
=20
=20
The question is:
Do you think that the WG should adopt all or some of these drafts?
=20
=20


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osoft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" =
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	{size:612.0pt 792.0pt;
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div.WordSection1
	{page:WordSection1;}
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<o:shapelayout v:ext=3D"edit">
<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]--></head><body bgcolor=3Dwhite lang=3DEN-IN=
 link=3Dblue vlink=3Dpurple><div class=3DWordSection1><pre>Hi,<o:p></o:p></=
pre><pre><o:p>&nbsp;</o:p></pre><pre>I support the adoption of all the draf=
ts.<o:p></o:p></pre><pre><o:p>&nbsp;</o:p></pre><div><pre>This would be use=
ful in our work also, where we are trying to build algorithms for LLNs base=
d on the delay incurred during the transit of a packet from the sender to r=
eceiver. <o:p></o:p></pre><pre><span style=3D'font-size:11.0pt;font-family:=
"Calibri","sans-serif";color:#1F497D'><o:p>&nbsp;</o:p></span></pre><p clas=
s=3DMsoNormal><b><span style=3D'font-size:9.0pt;font-family:"Trebuchet MS",=
"sans-serif";color:gray'>Thanks &amp; Regards,</span></b><b><span style=3D'=
font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";color:gray'><o:p></=
o:p></span></b></p><p class=3DMsoNormal><b><span style=3D'font-size:11.0pt;=
font-family:"Calibri","sans-serif";color:#1F497D'>Lijo Thomas <o:p></o:p></=
span></b></p><p class=3DMsoNormal><b><span style=3D'font-size:11.0pt;font-f=
amily:"Calibri","sans-serif";color:#1F497D'><o:p>&nbsp;</o:p></span></b></p=
></div><div><pre><o:p>&nbsp;</o:p></pre><pre>On 12/7/16 01:36, Zhoutianran =
wrote:<o:p></o:p></pre><blockquote style=3D'border:none;border-left:solid #=
5555EE 2.25pt;padding:0cm 0cm 0cm 10.0pt;margin-left:0cm;margin-top:5.0pt;m=
argin-right:0cm;margin-bottom:5.0pt'><pre>Hi All,<o:p></o:p></pre><pre><o:p=
>&nbsp;</o:p></pre><pre><o:p>&nbsp;</o:p></pre><pre><o:p>&nbsp;</o:p></pre>=
<pre>In Seoul, we got enough interest on the In Situ OAM work and positive<=
o:p></o:p></pre><pre>response on related drafts.<o:p></o:p></pre><pre>So th=
is email starts a formal poll for adoption the following I-Ds.<o:p></o:p></=
pre><pre><o:p>&nbsp;</o:p></pre><pre><o:p>&nbsp;</o:p></pre><pre><o:p>&nbsp=
;</o:p></pre><pre><a href=3D"https://tools.ietf.org/html/draft-brockners-in=
band-oam-requirements-02.txt">https://tools.ietf.org/html/draft-brockners-i=
nband-oam-requirements-02.txt</a><o:p></o:p></pre><pre><a href=3D"https://t=
ools.ietf.org/html/draft-brockners-inband-oam-data-02.txt">https://tools.ie=
tf.org/html/draft-brockners-inband-oam-data-02.txt</a><o:p></o:p></pre><pre=
><a href=3D"https://tools.ietf.org/html/draft-brockners-proof-of-transit-02=
.txt">https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.txt</=
a><o:p></o:p></pre><pre><o:p>&nbsp;</o:p></pre><pre><o:p>&nbsp;</o:p></pre>=
<pre><o:p>&nbsp;</o:p></pre><pre>To be efficient, we have the poll for thre=
e I-Ds in one thread. But you<o:p></o:p></pre><pre>can give your opinion on=
 each of them. And the result is per I-D.<o:p></o:p></pre><pre><o:p>&nbsp;<=
/o:p></pre><pre><o:p>&nbsp;</o:p></pre><pre><o:p>&nbsp;</o:p></pre><pre>The=
 question is:<o:p></o:p></pre><pre>Do you think that the WG should adopt al=
l or some of these drafts?<o:p></o:p></pre><pre><o:p>&nbsp;</o:p></pre><pre=
><o:p>&nbsp;</o:p></pre></blockquote></div></div><br />--------------------=
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From: "Ram Krishnan" <ramkri123@gmail.com>
To: "'Zhoutianran'" <zhoutianran@huawei.com>, <opsawg@ietf.org>
References: <96c75d75-6f97-fe68-071d-5567049de9e7@ece.iisc.ernet.in>	<009501d25cf6$a4468180$ecd38480$@gmail.com>	<003801d25d3b$4064d7d0$c12e8770$@gmail.com>	<010d01d25dd6$19284620$4b78d260$@gmail.com>	<BBA82579FD347748BEADC4C445EA0F21A228C30E@NKGEML515-MBX.china.huawei.com>
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Subject: Re: [OPSAWG] FW: FW: WG adoption poll for In-Situ OAM drafts
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Hi Tianran,

I can see the new draft playing predominantly a complementary role. I =
have summarized some of the key areas and also added comments, please =
see below.

1)      =
https://tools.ietf.org/html/draft-brockners-inband-oam-requirements-02.tx=
t=20

*	Complementary role of new draft:

*	Minimizing of In-band Telemetry Header for a specific use case such as =
latency measurement
*	Data export options=20

*	Summarizing monitoring information to build a scalable solution =
=E2=80=93 for example, alert the central management system only when =
99th percentile queue depth exceeds a high threshold for a flow
*	Flow mirroring

*	Service chaining use case (independent and coupled with =
underlay/overlay) =E2=80=93 describes how network monitoring can help in =
identifying server side issues and pave the way to dynamic resource =
orchestration to remedy the issue=20

=20
2)      =
https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.txt

*	Complementary role of new draft:=20

*	Minimizing of In-band Telemetry Header format=20
*	Data export options format

=20

-   Comments on above draft:=20
o   I am surprised to see =
http://p4.org/wp-content/uploads/fixed/INT/INT-current-spec.pdf not =
being referenced.
=20
3)      https://tools.ietf.org/html/draft-lapukhov-dataplane-probe-01
=20
-   Comments on above draft:=20
o   The above id focusses on injected probe packets. The new draft is =
applicable to all packets including injected probe packets.
=20
4)      Mapping in-band telemetry to different transport protocols =
=E2=80=93 new contribution (this could be a separate draft or might be =
input to be above drafts)

*	Complementary role of new draft: =20

*	IPSEC use case for WAN and DC (beyond internet connectivity) and =
mapping =20
*	VXLAN-GPE/Geneve/NSH mapping

5)      =
https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.txt
=20
-   Comments on above draft:=20
o   One of the key reasons for packets following a path different from a =
traffic engineered/service chain path is misconfiguration. With that =
background,
*  With an administrative domain, practical service verification =
scheme(s) =
(https://datatracker.ietf.org/doc/draft-irtf-nfvrg-service-verification/?=
include_text=3D) could suffice
*  The elaborate proof of transit scheme suggested in this draft is =
possibly applicable across administrative domains where it may not be =
possible to mandate service verification. Additionally, when the path is =
changed dynamically based on intermediate node state it is not clear how =
this scheme will work.
=20

Thanks,

Ramki

=20

From: Zhoutianran [mailto:zhoutianran@huawei.com =
<mailto:zhoutianran@huawei.com> ]=20
Sent: Sunday, December 25, 2016 10:57 PM
To: ram krishnan <ramkri123@gmail.com <mailto:ramkri123@gmail.com> >; =
opsawg@ietf.org <mailto:opsawg@ietf.org>=20
Subject: RE: [OPSAWG] FW: FW: WG adoption poll for In-Situ OAM drafts

=20

Hi Ramki,

=20

Thanks for bringing a new I-D to this WG.

Could you please state the relationship or potential overlay with the In =
Situ OAM serial I-Ds and also ( =
<https://tools.ietf.org/html/draft-lapukhov-dataplane-probe-01> =
https://tools.ietf.org/html/draft-lapukhov-dataplane-probe-01)?

=20

Best,

Tianran

=20

From: OPSAWG [ <mailto:opsawg-bounces@ietf.org> =
mailto:opsawg-bounces@ietf.org] On Behalf Of ram krishnan
Sent: Saturday, December 24, 2016 7:09 PM
To:  <mailto:opsawg@ietf.org> opsawg@ietf.org
Subject: [OPSAWG] FW: FW: WG adoption poll for In-Situ OAM drafts

=20

I support adoption of these drafts.=20

=20

In addition, I would like bring a closely related draft to your =
attention --  =
<https://datatracker.ietf.org/doc/draft-krishnan-opsawg-in-band-pro-sla/?=
include_text=3D1> =
https://datatracker.ietf.org/doc/draft-krishnan-opsawg-in-band-pro-sla/?i=
nclude_text=3D1

=20

This draft brings some important contributions in the area of =
requirements and data formats for

-          IPSEC tunneling=20

-          Pre-construction/minimizing of Telemetry header

-          Service chaining =E2=80=93 benefits beyond the network =
interconnect

=20

I was hoping to get this draft out by Seoul timeframe and make it in =
person, unfortunately couldn=E2=80=99t. Looking forward to discussions =
and collaboration on this interesting topic.

=20

Thanks,

Ramki

=20

---------- Forwarded message ----------
From: ram krishnan <ramkri123@gmail.com <mailto:ramkri123@gmail.com> >
Date: Fri, Dec 23, 2016 at 1:59 PM
Subject: FW: [OPSAWG] WG adoption poll for In-Situ OAM drafts
To: Ram Krishnan <ramkri123@gmail.com <mailto:ramkri123@gmail.com> >

=20

 On 12/7/16 01:36, Zhoutianran wrote:

Hi All,
=20
=20
=20
In Seoul, we got enough interest on the In Situ OAM work and positive
response on related drafts.
So this email starts a formal poll for adoption the following I-Ds.
=20
=20
=20
 =
<https://tools.ietf.org/html/draft-brockners-inband-oam-requirements-02.t=
xt> =E2=80=8B=E2=80=8B
https://tools.ietf.org/html/draft-brockners-inband-oam-requirements-02.tx=
t
https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.txt
https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.txt
=20
=20
=20
To be efficient, we have the poll for three I-Ds in one thread. But you
can give your opinion on each of them. And the result is per I-D.
=20
=20
=20
The question is:
Do you think that the WG should adopt all or some of these drafts?
=20
=20


--=20
This message has been scanned for viruses and=20
dangerous content by  <http://www.mailscanner.info/> MailScanner, and is =

believed to be clean.=20





=20

--=20

Thanks,=20

Ramki


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--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext=3D"edit">
<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><div><div><div><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Hi <span =
class=3Dm-674048118458920592spelle>Tianran</span>,<o:p></o:p></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>I can see =
the new draft playing predominantly a complementary role. I have =
summarized some of the key areas and also added comments, please see =
below.<o:p></o:p></p><p class=3DMsoListParagraph =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:2=
5.0pt;text-indent:-22.0pt;mso-list:l2 level1 lfo3'><![if =
!supportLists]><span style=3D'mso-list:Ignore'>1)<span =
style=3D'font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span><![endif]><a =
href=3D"https://tools.ietf.org/html/draft-brockners-inband-oam-requiremen=
ts-02.txt" =
target=3D"_blank">https://tools.ietf.org/html/draft-brockners-inband-oam-=
requirements-02.txt</a> <o:p></o:p></p><ul type=3Ddisc><li =
class=3DMsoListParagraph =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.=
25in;mso-list:l5 level1 lfo2'>Complementary role of new =
draft:<o:p></o:p></li></ul><ul type=3Ddisc><ul type=3Dcircle><li =
class=3DMsoListParagraph =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.=
25in;mso-list:l5 level2 lfo2'><a =
name=3D"m_-674048118458920592__Toc470773531">Minimizing of In-band =
Telemetry Header for </a>a specific use case such as latency =
measurement<o:p></o:p></li><li class=3DMsoListParagraph =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.=
25in;mso-list:l5 level2 lfo2'>Data export options =
<o:p></o:p></li></ul></ul><ul type=3Ddisc><ul type=3Dcircle><ul =
type=3Dsquare><li class=3DMsoListParagraph =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.=
25in;mso-list:l5 level3 lfo2'>Summarizing monitoring information to =
build a scalable solution =E2=80=93 for example, alert the central =
management system only when 99<sup>th</sup> percentile queue depth =
exceeds a high threshold for a flow<o:p></o:p></li><li =
class=3DMsoListParagraph =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.=
25in;mso-list:l5 level3 lfo2'>Flow =
mirroring<o:p></o:p></li></ul></ul></ul><ul type=3Ddisc><ul =
type=3Dcircle><li class=3DMsoListParagraph =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.=
25in;mso-list:l5 level2 lfo2'>Service chaining use case (independent and =
coupled with underlay/overlay) =E2=80=93 describes how network =
monitoring can help in identifying server side issues and pave the way =
to dynamic resource orchestration to remedy the issue =
<o:p></o:p></li></ul></ul><pre style=3D'margin-left:.25in'><span =
style=3D'font-size:12.0pt;font-family:"Times New =
Roman",serif'>&nbsp;<o:p></o:p></span></pre><pre =
style=3D'margin-left:25.0pt;text-indent:-22.0pt;mso-list:l2 level1 =
lfo3'><![if !supportLists]><span =
style=3D'font-size:12.0pt;font-family:"Times New Roman",serif'><span =
style=3D'mso-list:Ignore'>2)<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><span =
style=3D'font-size:12.0pt;font-family:"Times New Roman",serif'><a =
href=3D"https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.tx=
t" =
target=3D"_blank">https://tools.ietf.org/html/draft-brockners-inband-oam-=
data-02.txt</a><o:p></o:p></span></pre><ul type=3Ddisc><li =
class=3DMsoListParagraph =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.=
25in;mso-list:l5 level1 lfo2'>Complementary role of new draft: =
<o:p></o:p></li></ul><ul type=3Ddisc><ul type=3Dcircle><li =
class=3DMsoListParagraph =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.=
25in;mso-list:l5 level2 lfo2'>Minimizing of In-band Telemetry Header =
format <o:p></o:p></li><li class=3DMsoListParagraph =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.=
25in;mso-list:l5 level2 lfo2'>Data export options =
format<o:p></o:p></li></ul></ul><p =
class=3DMsoNoSpacing><o:p>&nbsp;</o:p></p><pre =
style=3D'margin-left:.75in;text-indent:-.25in;mso-list:l5 level1 =
lfo2'><![if !supportLists]><span =
style=3D'font-size:12.0pt;font-family:"Times New Roman",serif'><span =
style=3D'mso-list:Ignore'>-<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp; </span></span></span><![endif]><span =
style=3D'font-size:12.0pt;font-family:"Times New Roman",serif'>Comments =
on above draft: <o:p></o:p></span></pre><pre =
style=3D'margin-left:63.8pt;text-indent:-.25in;mso-list:l0 level1 =
lfo5'><![if !supportLists]><span style=3D'font-size:12.0pt'><span =
style=3D'mso-list:Ignore'>o<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp; </span></span></span><![endif]><span =
style=3D'font-size:12.0pt;font-family:"Times New Roman",serif'>I am =
surprised to see <a =
href=3D"http://p4.org/wp-content/uploads/fixed/INT/INT-current-spec.pdf" =
target=3D"_blank">http://p4.org/wp-content/uploads/fixed/INT/INT-current-=
spec.pdf</a> not being referenced.<o:p></o:p></span></pre><pre =
style=3D'margin-left:.25in'><span =
style=3D'font-size:12.0pt;font-family:"Times New =
Roman",serif'>&nbsp;<o:p></o:p></span></pre><pre =
style=3D'margin-left:25.0pt;text-indent:-22.0pt;mso-list:l2 level1 =
lfo3'><![if !supportLists]><span =
style=3D'font-size:12.0pt;font-family:"Times New Roman",serif'><span =
style=3D'mso-list:Ignore'>3)<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><span =
style=3D'font-size:12.0pt;font-family:"Times New Roman",serif'><a =
href=3D"https://tools.ietf.org/html/draft-lapukhov-dataplane-probe-01" =
target=3D"_blank">https://tools.ietf.org/html/draft-lapukhov-dataplane-pr=
obe-01</a><o:p></o:p></span></pre><pre =
style=3D'margin-left:25.0pt'><span =
style=3D'font-size:12.0pt;font-family:"Times New =
Roman",serif'><o:p>&nbsp;</o:p></span></pre><pre =
style=3D'margin-left:.75in;text-indent:-.25in;mso-list:l1 level1 =
lfo7'><![if !supportLists]><span =
style=3D'font-size:12.0pt;font-family:"Times New Roman",serif'><span =
style=3D'mso-list:Ignore'>-<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp; </span></span></span><![endif]><span =
style=3D'font-size:12.0pt;font-family:"Times New Roman",serif'>Comments =
on above draft: <o:p></o:p></span></pre><pre =
style=3D'margin-left:1.0in;text-indent:-.25in;mso-list:l1 level2 =
lfo7'><![if !supportLists]><span style=3D'font-size:12.0pt'><span =
style=3D'mso-list:Ignore'>o<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp; </span></span></span><![endif]><span =
style=3D'font-size:12.0pt;font-family:"Times New Roman",serif'>The above =
id focusses on injected probe packets. The new draft is applicable to =
all packets including injected probe =
packets.<o:p></o:p></span></pre><pre><span =
style=3D'font-size:12.0pt;font-family:"Times New =
Roman",serif'>&nbsp;<o:p></o:p></span></pre><pre =
style=3D'margin-left:25.0pt;text-indent:-22.0pt;mso-list:l2 level1 =
lfo3'><![if !supportLists]><span =
style=3D'font-size:12.0pt;font-family:"Times New Roman",serif'><span =
style=3D'mso-list:Ignore'>4)<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><span =
style=3D'font-size:12.0pt;font-family:"Times New Roman",serif'>Mapping =
in-band telemetry to different transport protocols =E2=80=93 new =
contribution (this could be a separate draft or might be input to be =
above drafts)<o:p></o:p></span></pre><ul type=3Ddisc><ul =
type=3Dcircle><li class=3DMsoListParagraph =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0=
in;mso-list:l1 level2 lfo7'>Complementary role of new draft: =
=C2=A0<o:p></o:p></li></ul></ul><ul type=3Ddisc><ul type=3Dcircle><ul =
type=3Dsquare><li class=3DMsoListParagraph =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0=
in;mso-list:l1 level3 lfo7'>IPSEC use case for WAN and DC (beyond =
internet connectivity) and mapping =C2=A0<o:p></o:p></li><li =
class=3DMsoListParagraph =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0=
in;mso-list:l1 level3 lfo7'>VXLAN-GPE/Geneve/NSH =
mapping<o:p></o:p></li></ul></ul></ul><pre =
style=3D'margin-left:25.0pt;text-indent:-22.0pt;mso-list:l2 level1 =
lfo3'><![if !supportLists]><span =
style=3D'font-size:12.0pt;font-family:"Times New Roman",serif'><span =
style=3D'mso-list:Ignore'>5)<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><span =
style=3D'font-size:12.0pt;font-family:"Times New Roman",serif'><a =
href=3D"https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.t=
xt" =
target=3D"_blank">https://tools.ietf.org/html/draft-brockners-proof-of-tr=
ansit-02.txt</a><o:p></o:p></span></pre><pre><span =
style=3D'font-size:12.0pt;font-family:"Times New =
Roman",serif'><o:p>&nbsp;</o:p></span></pre><pre =
style=3D'margin-left:.75in;text-indent:-.25in;mso-list:l1 level1 =
lfo7'><![if !supportLists]><span =
style=3D'font-size:12.0pt;font-family:"Times New Roman",serif'><span =
style=3D'mso-list:Ignore'>-<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp; </span></span></span><![endif]><span =
style=3D'font-size:12.0pt;font-family:"Times New Roman",serif'>Comments =
on above draft: <o:p></o:p></span></pre><pre =
style=3D'margin-left:1.0in;text-indent:-.25in;mso-list:l1 level2 =
lfo7'><![if !supportLists]><span style=3D'font-size:12.0pt'><span =
style=3D'mso-list:Ignore'>o<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp; </span></span></span><![endif]><span =
style=3D'font-size:12.0pt;font-family:"Times New Roman",serif'>One of =
the key reasons for packets following a path different from a traffic =
engineered/service chain path is misconfiguration. With that =
background,<o:p></o:p></span></pre><pre =
style=3D'margin-left:1.5in;text-indent:-.25in;mso-list:l1 level3 =
lfo7'><![if !supportLists]><span =
style=3D'font-size:12.0pt;font-family:Wingdings'><span =
style=3D'mso-list:Ignore'>=C2=A7<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp; </span></span></span><![endif]><span =
style=3D'font-size:12.0pt;font-family:"Times New Roman",serif'>With an =
administrative domain, practical service verification scheme(s) (<a =
href=3D"https://datatracker.ietf.org/doc/draft-irtf-nfvrg-service-verific=
ation/?include_text" =
target=3D"_blank">https://datatracker.ietf.org/doc/draft-irtf-nfvrg-servi=
ce-verification/?include_text</a>=3D) could =
suffice<o:p></o:p></span></pre><pre =
style=3D'margin-left:1.5in;text-indent:-.25in;mso-list:l1 level3 =
lfo7'><![if !supportLists]><span =
style=3D'font-size:12.0pt;font-family:Wingdings'><span =
style=3D'mso-list:Ignore'>=C2=A7<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp; </span></span></span><![endif]><span =
style=3D'font-size:12.0pt;font-family:"Times New Roman",serif'>The =
elaborate proof of transit scheme suggested in this draft is possibly =
applicable across administrative domains where it may not be possible to =
mandate service verification. Additionally, when the path is changed =
dynamically based on intermediate node state it is not clear how this =
scheme will work.<o:p></o:p></span></pre><pre><span =
style=3D'font-size:12.0pt;font-family:"Times New =
Roman",serif'>&nbsp;<o:p></o:p></span></pre><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Thanks,<o:p>=
</o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Ramki<o:p></=
o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:11.0pt;font-family:"Arial",sans-serif'>&nbsp;</span><o=
:p></o:p></p><div><div style=3D'border:none;border-top:solid #E1E1E1 =
1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><a =
name=3D"m_-674048118458920592__MailOriginal"><b><span =
style=3D'font-size:11.0pt;font-family:"Arial",sans-serif'>From:</span></b=
></a><span =
style=3D'mso-bookmark:m_-674048118458920592__MailOriginal'></span><span =
style=3D'font-size:11.0pt;font-family:"Arial",sans-serif'> Zhoutianran =
[mailto:<a href=3D"mailto:zhoutianran@huawei.com" =
target=3D"_blank">zhoutianran@huawei.com</a>] <br><b>Sent:</b> Sunday, =
December 25, 2016 10:57 PM<br><b>To:</b> ram krishnan &lt;<a =
href=3D"mailto:ramkri123@gmail.com" =
target=3D"_blank">ramkri123@gmail.com</a>&gt;; <a =
href=3D"mailto:opsawg@ietf.org" =
target=3D"_blank">opsawg@ietf.org</a><br><b>Subj</b></span><b><span =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif'>ect:</span></=
b><span style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif'> RE: =
[OPSAWG] FW: FW: WG adoption poll for In-Situ OAM =
drafts</span><o:p></o:p></p></div></div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>&nbsp;<o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:10.5pt;font-family:"Courier New";color:#1F497D'>Hi =
Ramki,</span><o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:10.5pt;font-family:"Courier =
New";color:#1F497D'>&nbsp;</span><o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:10.5pt;font-family:"Courier =
New";color:#1F497D'>Thanks for bringing a new I-D to this =
WG.</span><o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:10.5pt;font-family:"Courier New";color:#1F497D'>Could =
you please state the relationship or potential overlay with the In Situ =
OAM serial I-Ds and also (</span><a =
href=3D"https://tools.ietf.org/html/draft-lapukhov-dataplane-probe-01" =
target=3D"_blank"><span style=3D'font-size:10.5pt;font-family:"Courier =
New"'>https://tools.ietf.org/html/draft-lapukhov-dataplane-probe-01</span=
></a><span style=3D'font-size:10.5pt;font-family:"Courier =
New";color:#1F497D'>)?</span><o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:10.5pt;font-family:"Courier =
New";color:#1F497D'>&nbsp;</span><o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:10.5pt;font-family:"Courier =
New";color:#1F497D'>Best,</span><o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:10.5pt;font-family:"Courier =
New";color:#1F497D'>Tianran</span><o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:10.5pt;font-family:"Courier =
New";color:#1F497D'>&nbsp;</span><o:p></o:p></p><div =
style=3D'border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in =
4.0pt'><div><div style=3D'border:none;border-top:solid #B5C4DF =
1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif'>From:</span></=
b><span style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif'> =
OPSAWG [</span><a href=3D"mailto:opsawg-bounces@ietf.org" =
target=3D"_blank"><span =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif'>mailto:opsawg-=
bounces@ietf.org</span></a><span =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif'>] <b>On =
Behalf Of </b>ram krishnan<br><b>Sent:</b> Saturday, December 24, 2016 =
7:09 PM<br><b>To:</b> </span><a href=3D"mailto:opsawg@ietf.org" =
target=3D"_blank"><span =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif'>opsawg@ietf.or=
g</span></a><span =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif'><br><b>Subject=
:</b> [OPSAWG] FW: FW: WG adoption poll for In-Situ OAM =
drafts</span><o:p></o:p></p></div></div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>&nbsp;<o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-family:"Calibri",sans-serif'>I support adoption of these =
drafts. </span><o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-family:"Calibri",sans-serif'>&nbsp;</span><o:p></o:p></p><p=
 class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-family:"Calibri",sans-serif'>In addition, I would like =
bring a closely related draft to your attention -- </span><a =
href=3D"https://datatracker.ietf.org/doc/draft-krishnan-opsawg-in-band-pr=
o-sla/?include_text=3D1" target=3D"_blank"><span =
style=3D'font-family:"Calibri",sans-serif;color:windowtext'>https://datat=
racker.ietf.org/doc/draft-krishnan-opsawg-in-band-pro-sla/?include_text=3D=
1</span></a><o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-family:"Calibri",sans-serif'>&nbsp;</span><o:p></o:p></p><p=
 class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-family:"Calibri",sans-serif'>This draft brings some =
important contributions in the area of requirements and data formats =
for</span><o:p></o:p></p><p class=3Dm-674048118458920592msolistparagraph =
style=3D'margin-left:.25in'><span =
style=3D'font-family:"Calibri",sans-serif'>-</span><span =
style=3D'font-size:7.0pt'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp; </span><span style=3D'font-family:"Calibri",sans-serif'>IPSEC =
tunneling </span><o:p></o:p></p><p =
class=3Dm-674048118458920592msolistparagraph =
style=3D'margin-left:.25in'><span =
style=3D'font-family:"Calibri",sans-serif'>-</span><span =
style=3D'font-size:7.0pt'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp; </span><span =
style=3D'font-family:"Calibri",sans-serif'>Pre-construction/minimizing =
of Telemetry header</span><o:p></o:p></p><p =
class=3Dm-674048118458920592msolistparagraph =
style=3D'margin-left:.25in'><span =
style=3D'font-family:"Calibri",sans-serif'>-</span><span =
style=3D'font-size:7.0pt'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp; </span><span style=3D'font-family:"Calibri",sans-serif'>Service =
chaining =E2=80=93 benefits beyond the network =
interconnect</span><o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-family:"Calibri",sans-serif'>&nbsp;</span><o:p></o:p></p><p=
 class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-family:"Calibri",sans-serif'>I was hoping to get this =
draft out by Seoul timeframe and make it in person, unfortunately =
couldn=E2=80=99t. Looking forward to discussions and collaboration on =
this interesting topic.</span><o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-family:"Calibri",sans-serif'>&nbsp;</span><o:p></o:p></p><p=
 class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-family:"Calibri",sans-serif'>Thanks,</span><o:p></o:p></p><=
p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-family:"Calibri",sans-serif'>Ramki</span><o:p></o:p></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-family:"Calibri",sans-serif'>&nbsp;</span><o:p></o:p></p><d=
iv><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;margin-bottom:12.0pt'>---------- =
Forwarded message ----------<br>From: <b>ram krishnan</b> &lt;<a =
href=3D"mailto:ramkri123@gmail.com" =
target=3D"_blank">ramkri123@gmail.com</a>&gt;<br>Date: Fri, Dec 23, 2016 =
at 1:59 PM<br>Subject: FW: [OPSAWG] WG adoption poll for In-Situ OAM =
drafts<br>To: Ram Krishnan &lt;<a href=3D"mailto:ramkri123@gmail.com" =
target=3D"_blank">ramkri123@gmail.com</a>&gt;<o:p></o:p></p><div><div><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif'>&nbsp;</span>=
<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif'>&nbsp;</span>=
On 12/7/16 01:36, Zhoutianran wrote:<o:p></o:p></p><blockquote =
style=3D'border:none;border-left:solid #5555EE 2.25pt;padding:0in 0in =
0in =
10.0pt;margin-left:0in;margin-top:5.0pt;margin-right:0in;margin-bottom:5.=
0pt'><pre>Hi =
All,<o:p></o:p></pre><pre>&nbsp;<o:p></o:p></pre><pre>&nbsp;<o:p></o:p></=
pre><pre>&nbsp;<o:p></o:p></pre><pre>In Seoul, we got enough interest on =
the In Situ OAM work and positive<o:p></o:p></pre><pre>response on =
related drafts.<o:p></o:p></pre><pre>So this email starts a formal poll =
for adoption the following =
I-Ds.<o:p></o:p></pre><pre>&nbsp;<o:p></o:p></pre><pre>&nbsp;<o:p></o:p><=
/pre><pre>&nbsp;<o:p></o:p></pre><div><pre><a =
href=3D"https://tools.ietf.org/html/draft-brockners-inband-oam-requiremen=
ts-02.txt" target=3D"_blank"><span style=3D'font-family:"Cambria =
Math",serif'>=E2=80=8B=E2=80=8B</span></a><o:p></o:p></pre></div><pre><a =
href=3D"https://tools.ietf.org/html/draft-brockners-inband-oam-requiremen=
ts-02.txt" =
target=3D"_blank">https://tools.ietf.org/html/draft-brockners-inband-oam-=
requirements-02.txt</a><o:p></o:p></pre><pre><a =
href=3D"https://tools.ietf.org/html/draft-brockners-inband-oam-data-02.tx=
t" =
target=3D"_blank">https://tools.ietf.org/html/draft-brockners-inband-oam-=
data-02.txt</a><o:p></o:p></pre><pre><a =
href=3D"https://tools.ietf.org/html/draft-brockners-proof-of-transit-02.t=
xt" =
target=3D"_blank">https://tools.ietf.org/html/draft-brockners-proof-of-tr=
ansit-02.txt</a><o:p></o:p></pre><pre>&nbsp;<o:p></o:p></pre><pre>&nbsp;<=
o:p></o:p></pre><pre>&nbsp;<o:p></o:p></pre><pre>To be efficient, we =
have the poll for three I-Ds in one thread. But =
you<o:p></o:p></pre><pre>can give your opinion on each of them. And the =
result is per =
I-D.<o:p></o:p></pre><pre>&nbsp;<o:p></o:p></pre><pre>&nbsp;<o:p></o:p></=
pre><pre>&nbsp;<o:p></o:p></pre><pre>The question =
is:<o:p></o:p></pre><pre>Do you think that the WG should adopt all or =
some of these =
drafts?<o:p></o:p></pre><pre>&nbsp;<o:p></o:p></pre><pre>&nbsp;<o:p></o:p=
></pre></blockquote><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#888888'><br>-- <br>This message has been scanned for =
viruses and <br>dangerous content by </span><a =
href=3D"http://www.mailscanner.info/" =
target=3D"_blank"><b>MailScanner</b></a><span style=3D'color:#888888'>, =
and is <br>believed to be clean. =
</span><o:p></o:p></p></div></div></div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><br><br =
clear=3Dall><o:p></o:p></p><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>&nbsp;<o:p><=
/o:p></p></div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>-- =
<o:p></o:p></p><div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Thanks,&nbsp=
;<o:p></o:p></p><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Ramki<o:p></=
o:p></p></div></div></div></div></div></div></div></div></body></html>
------=_NextPart_000_00C1_01D26256.EA3D96A0--



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From: "Adrian Farrel" <adrian@olddog.co.uk>
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Cc: draft-wu-opsawg-service-model-explained@ietf.org
Subject: [OPSAWG] FW: I-D Action: draft-wu-opsawg-service-model-explained-04.txt
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Hi WG,

We made some updates around section 6.4 having taken advice from a number of
people including one of the ADs that suggested it is a good thing to mention and
point to the MEF forum's LSO architecture, but it is not practical to try to
match the IETF work with the MEF work because they are doing different things in
a different way.

Chairs! what shall we do with this draft? In Seoul it felt like there was
enthusiasm for the existence of the draft, but you should make that call and
decide what happens next.

Thanks,
Adrian

> -----Original Message-----
> From: I-D-Announce [mailto:i-d-announce-bounces@ietf.org] On Behalf Of
> internet-drafts@ietf.org
> Sent: 31 December 2016 16:58
> To: i-d-announce@ietf.org
> Subject: I-D Action: draft-wu-opsawg-service-model-explained-04.txt
> 
> 
> A New Internet-Draft is available from the on-line Internet-Drafts
directories.
> 
> 
>         Title           : Service Models Explained
>         Authors         : Qin Wu
>                           Will Liu
>                           Adrian Farrel
> 	Filename        : draft-wu-opsawg-service-model-explained-04.txt
> 	Pages           : 19
> 	Date            : 2016-12-31
> 
> Abstract:
>    The IETF has produced a considerable number of data models in the
>    YANG modelling language.  The majority of these are used to model
>    devices and they allow access for configuration and to read
>    operational status.
> 
>    A small number of YANG models are used to model services (for
>    example, the Layer Three Virtual Private Network Service Model
>    produced by the L3SM working group).
> 
>    This document briefly sets out the scope of and purpose of an IETF
>    service model, and it shows where a service model might fit into a
>    Software Defined Networking architecture or deployment.
> 
> 
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-wu-opsawg-service-model-explained/
> 
> There's also a htmlized version available at:
> https://tools.ietf.org/html/draft-wu-opsawg-service-model-explained-04
> 
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-wu-opsawg-service-model-explained-04
> 
> 
> Please note that it may take a couple of minutes from the time of submission
> until the htmlized version and diff are available at tools.ietf.org.
> 
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
> 
> _______________________________________________
> I-D-Announce mailing list
> I-D-Announce@ietf.org
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> Internet-Draft directories: http://www.ietf.org/shadow.html
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