Re: Last Call: <draft-ietf-6man-rfc1981bis-04.txt> (Path MTU Discovery for IP version 6) to Internet Standard

"Eggert, Lars" <lars@netapp.com> Sat, 04 February 2017 11:05 UTC

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From: "Eggert, Lars" <lars@netapp.com>
To: Fernando Gont <fgont@si6networks.com>
Subject: Re: Last Call: <draft-ietf-6man-rfc1981bis-04.txt> (Path MTU Discovery for IP version 6) to Internet Standard
Thread-Topic: Last Call: <draft-ietf-6man-rfc1981bis-04.txt> (Path MTU Discovery for IP version 6) to Internet Standard
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Date: Sat, 4 Feb 2017 10:59:56 +0000
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On 2017-2-3, at 3:00, Fernando Gont <fgont@si6networks.com> wrote:
> My apologies: my comments were probably misleading. Certainly, this
> document is simply RFC1981 to Std, and hence recommending RFC4821 would
> be kind of ou of scope, here.
> 
> That say, one might wonder to what extent, and for the general Internet,
> RFC1981 can be considered succesful (given the filtering of ICMP
> messages). -- i.e., at this point in time you wouldn't rely on RFC1981
> (icmp-based pmtud) for path-mtu discovery.

What Fernando said: I'm certainly not opposed to lifting this to Standard, but it is painting an incorrect picture - PLPMTUD is de facto mandatory these days, and has been for years.

Lars