Re: Meta-issues: On the deprecation of the fragmentation function

Marc Lampo <marc.lampo.ietf@gmail.com> Fri, 05 July 2013 05:49 UTC

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References: <51CE05E5.4040202@si6networks.com> <201307041111.r64BB19R058289@givry.fdupont.fr>
Date: Fri, 05 Jul 2013 07:49:23 +0200
Message-ID: <CAB0C4xMBeOpJBD27X9mCjBKE8EzXRnd=hRYjXd_k3GJPsSrH2g@mail.gmail.com>
Subject: Re: Meta-issues: On the deprecation of the fragmentation function
From: Marc Lampo <marc.lampo.ietf@gmail.com>
To: Francis Dupont <Francis.Dupont@fdupont.fr>
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Cc: Fernando Gont <fgont@si6networks.com>, "ipv6@ietf.org" <ipv6@ietf.org>
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let's write a draft on deprecating the statement, from RFC 793, that

The TCP must recover from data that is ...
    delivered out of order by the internet communication system.

(my feeling :
 just like this would actually create a new, incompatible, transport
protocol;
 deprecating the fragmentation extension header creates a new, incompatible
to IPv6, network protocol)


Kind regards,

Marc


On Thu, Jul 4, 2013 at 1:11 PM, Francis Dupont <Francis.Dupont@fdupont.fr>wrote:

>  In your previous mail you wrote:
>
> >  Considering the above, I guess I'm in the camp of "avoid fragmentation
> >  where possible". However, I don't think I'd go as far as deprecating it.
>
> => I have private notes about the deprecation of reassembly so
> not so far... BTW there was (still is) a TCP/IP stack so poor it
> doesn't handle reassembly of out of order TCP fragments, so the idea
> is not so silly.
>
> Regards
>
> Francis.Dupont@fdupont.fr
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