[v6ops] Benoit Claise's No Objection on draft-ietf-v6ops-ipv6-ehs-in-real-world-02: (with COMMENT)

"Benoit Claise" <bclaise@cisco.com> Tue, 15 March 2016 18:12 UTC

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From: Benoit Claise <bclaise@cisco.com>
To: The IESG <iesg@ietf.org>
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Date: Tue, 15 Mar 2016 11:12:26 -0700
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Cc: v6ops-chairs@ietf.org, draft-ietf-v6ops-ipv6-ehs-in-real-world.all@tools.ietf.org, v6ops@ietf.org, draft-ietf-v6ops-ipv6-ehs-in-real-world@ietf.org
Subject: [v6ops] Benoit Claise's No Objection on draft-ietf-v6ops-ipv6-ehs-in-real-world-02: (with COMMENT)

Benoit Claise has entered the following ballot position for
draft-ietf-v6ops-ipv6-ehs-in-real-world-02: No Objection

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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

While reading the document, I was wondering under which circumstances
dropping IPv6 Extension Headers is the right behavior?
Or, if dropping IPv6 Extension Headers is always just wrong?
The only related sentences I found are:

   The
   aforementioned results serve as a problem statement that is expected
   to trigger operational advice on the filtering of IPv6 packets
   carrying IPv6 Extension Headers, so that the situation improves over
   time. 

   ...

   In any case, we note that it is
   impossible to tell whether, in those cases where IPv6 packets with
   extension headers get dropped, the packet drops are the result of an
   explicit and intended policy, or the result of improper device
   configuration defaults, buggy devices, etc. 


What does it mean "so that the situation improves overtime"?
A disclaimer that this study is formulated in a neutral way, as a
precursor document for some further advice + a pointer to
https://tools.ietf.org/html/draft-gont-v6ops-ipv6-ehs-in-real-world-00
would be a plus IMO.

[v6ops] Benoit Claise's No Objection on draft-iet… Benoit Claise