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Re: [quicwg/base-drafts] Rewrite text about Version Negotiation (#1039)

Martin Thomson <notifications@github.com> Fri, 16 February 2018 00:39 UTC

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Date: Fri, 16 Feb 2018 00:39:52 +0000
From: Martin Thomson <notifications@github.com>
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Subject: Re: [quicwg/base-drafts] Rewrite text about Version Negotiation (#1039)
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@martinduke, I agree, we should try to land this and then iterate.

>    What if the content of Initial #2 differs from Initial #1 (in the same Stream 0 sequence numbers)? What if I process, send a RETRY, and then it turns out I'd already responded to the Initial with a Server Hello?
>    If I process the second Initial, and then find I already have this connection with 0-RTT, I've passed this stuff up to TLS for no reason. If we check conn ID first, we've already thrown out the Stream 0 contents as duplicative.

I think that I mentioned that problem before.  The client should probably ignore Retry if it has moved on.  More generally, we should probably encourage (or insist on) consistent routing of Initial. #1115



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