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Re: [quicwg/base-drafts] 0-RTT can't use transport parameters or 1-RTT frames (#2461)

David Schinazi <notifications@github.com> Thu, 14 February 2019 20:49 UTC

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Subject: Re: [quicwg/base-drafts] 0-RTT can't use transport parameters or 1-RTT frames (#2461)
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I know we agreed to this is Tokyo, but seeing the actual PR made me realize how complex and hard to enforce this is. Would it be possible to solve the issue in a simpler way by saying something along the lines of the following? `Once a server receives a valid 1-RTT packet with packet number n, any 0-RTT packet it receives with packet number greater than n MUST be ignored.` That way clients can't keep sending 0-RTT forever since they'll have to send a 1-RTT ACK to unblock the server-to-client flow control at some point.

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