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Re: Update to draft QUIC DPLPMTUD text i draft-ietf-tsvwg-datagram-plpmtud

Magnus Westerlund <magnus.westerlund@ericsson.com> Wed, 13 May 2020 16:18 UTC

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From: Magnus Westerlund <magnus.westerlund@ericsson.com>
To: "ilubashe=40akamai.com@dmarc.ietf.org" <ilubashe=40akamai.com@dmarc.ietf.org>, "quic@ietf.org" <quic@ietf.org>
CC: "draft-ietf-tsvwg-datagram-plpmtud.all@ietf.org" <draft-ietf-tsvwg-datagram-plpmtud.all@ietf.org>
Subject: Re: Update to draft QUIC DPLPMTUD text i draft-ietf-tsvwg-datagram-plpmtud
Thread-Topic: Update to draft QUIC DPLPMTUD text i draft-ietf-tsvwg-datagram-plpmtud
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Date: Wed, 13 May 2020 16:18:38 +0000
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Hi Igor,

Thanks for finding this issue. 

On Tue, 2020-05-12 at 14:00 +0000, Lubashev, Igor wrote:
> Magnus,
>  
> Section “6.3.  DPLPMTUD for QUIC”, quotes a very old version of the QUIC
> Transport draft.  The current text in QUIC transport says:

So you are specific talking about the third paragraph in Section 6.3. I think
that can be addressed by the authors. 

>  
> “
> If a QUIC endpoint determines that the PMTU between any pair of local and
> remote IP addresses has fallen below the size needed to support the smallest
> allowed maximum packet size, it MUST immediately cease sending QUIC packets,
> except for PMTU probe packets, on the affected path. An endpoint MAY terminate
> the connection if an alternative path cannot be found.
> “

I will note that this type of issues may still creep up and will have to be
addressed in AUTH48. That was why I did raise the question if we should actually
move all of the text in section 6.3 into quic-transport to avoid the normative
reference to quic-transport. 


Cheers

Magnus Westerlund 


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