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Re: [quicwg/base-drafts] Do not allow ICMP PTB to increase PMTU (#2161)

Igor Lubashev <notifications@github.com> Thu, 13 December 2018 21:53 UTC

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Date: Thu, 13 Dec 2018 21:52:57 +0000
From: Igor Lubashev <notifications@github.com>
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Subject: Re: [quicwg/base-drafts] Do not allow ICMP PTB to increase PMTU (#2161)
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Note: it would be wrong to increase PMTU merely due to a receipt of a validated ICMP PTB message received in response to a PMTU probe.  Only an ACK of a probe can increase PMTU to the probe's size.  But a receipt of such ICMP PTB message can trigger a new PMTU probe of the given size.

All of this is a subject to DPLPMTUD specification.  Hence, I did not include it in this PR.

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