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Re: Death by extension header (was:RE: New Version Notification for draft-li-6man-hbh-fwd-hdr-00.txt)

Fernando Gont <fernando@gont.com.ar> Mon, 13 July 2020 18:01 UTC

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Subject: Re: Death by extension header (was:RE: New Version Notification for draft-li-6man-hbh-fwd-hdr-00.txt)
To: Toerless Eckert <tte@cs.fau.de>, Tom Herbert <tom@herbertland.com>
Cc: "6man@ietf.org" <6man@ietf.org>
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From: Fernando Gont <fernando@gont.com.ar>
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Date: Mon, 13 Jul 2020 15:00:44 -0300
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On 10/7/20 15:32, Toerless Eckert wrote:
> IMHO: See my email earlier in the thread about punting stuff to slow-path, especially when/before
> you figure out that you should have just ignored something at linerarte.
> 
> Aka: not sufficiently prescriptive RFCs + bad implementations == extension header based features killed in deployments.

Indeed. And add to that that the EH structure itself seems to be rather 
unfriendly with some popular hardware architectures. (unless with "not 
sufficiently prescriptive RFCs" you are meaning to set the maximum 
EH-header chain length to some sane value that folks might agree to 
comply with).

Thanks,
-- 
Fernando Gont
e-mail: fernando@gont.com.ar || fgont@si6networks.com
PGP Fingerprint: 7809 84F5 322E 45C7 F1C9 3945 96EE A9EF D076 FFF1

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