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Re: IETF Last Call conclusion for draft-ietf-6man-rfc2460bis-08

Tim Chown <Tim.Chown@jisc.ac.uk> Wed, 15 March 2017 23:30 UTC

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From: Tim Chown <Tim.Chown@jisc.ac.uk>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>
CC: Joe Touch <touch@isi.edu>, "Leddy, John" <John_Leddy@comcast.com>, "draft-ietf-6man-rfc2460bis.all@ietf.org" <draft-ietf-6man-rfc2460bis.all@ietf.org>, 6man WG <ipv6@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>, "Stefano Previdi (sprevidi)" <sprevidi@cisco.com>
Subject: Re: IETF Last Call conclusion for draft-ietf-6man-rfc2460bis-08
Thread-Topic: IETF Last Call conclusion for draft-ietf-6man-rfc2460bis-08
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Date: Wed, 15 Mar 2017 23:30:23 +0000
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References: <599257D7-532D-4512-929B-D124623EAF35@ericsson.com> <37ED3E78-B23A-4D29-8597-5A63236129B1@cisco.com> <887bd0f0-32a5-56f1-9ac9-703ecb97a760@gmail.com> <80D8FFF0-2674-48A7-A935-11681F5C5A4D@jisc.ac.uk> <A67E1C07-282B-4422-A2FF-86F6CACBD775@cable.comcast.com> <ab7c95a5-9776-24b5-7c26-4c5987d4c948@isi.edu> <ed2f5144-52fb-dda5-1fb4-62be1625b341@gmail.com>
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> On 15 Mar 2017, at 18:59, Brian E Carpenter <brian.e.carpenter@gmail.com> wrote:
> 
> On 16/03/2017 07:14, Joe Touch wrote:
>> 
>> 
>> On 3/15/2017 9:33 AM, Leddy, John wrote:
>>> Does this mean that only middle boxes, not covered by the architecture could insert an extension header for use within the domain?
>> Please see my recent post about Stefano's issue. IMO, any opaque
>> (distributed) system that acts like a host can follow the host (node)
>> requirements.
>> 
>> The instant that system is not opaque or fails to act like a single
>> host, it becomes noncompliant.
> 
> That's the point. That's why the 6man WG shot down proposals to play
> intra-domain tricks with the flow label a few years ago, and they
> didn't even break PMTUD or IPsec/AH.
> 
> In another form, the answer to John is that there are no protocol police,
> so what consenting adults do inside their own networks simply isn't an
> issue that an Internet-wide spec can or should address. And for sure, the
> spec for IPvN for any value of N is an Internet-wide spec.
> 
> If Stefano and colleagues describe how private domains can perform tricks
> that MUST NOT be exported to the Internet, that is fine. Whether that
> becomes a standards track document or an Independent Submission RFC is
> another question. But IMHO it is completely orthogonal to the rough
> consensus on 2460bis.

Exactly.

Tim

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