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

[Martin Thomson <[e-mail]>]

martinthomson commented on this pull request.



> -A packet that uses the short header could be associated with an existing
-connection with an incomplete cryptographic handshake.  Such a packet could be a
-valid packet that has been reordered with respect to the long-form packets that
-will complete the cryptographic handshake.  This might happen after the final
-set of cryptographic handshake messages from either peer.  These packets are
-expected to be correlated with a connection using the tuple of IP addresses and
-ports.  Packets that might be reordered in this fashion SHOULD be buffered in
-anticipation of the handshake completing.
-
-0-RTT packets might be received prior to a Client Initial packet at a server.
-If the version of these packets is acceptable to the server, it MAY buffer these
-packets in anticipation of receiving a reordered Client Initial packet.
+with an existing connection, or - for servers - potentially create a new
+connection.
+
+Hosts handle packets that can be associated with an existing connection

In that case, I think that we have a problem here.

On the first two, the original needs to be correct or we won't ever be able to use long headers after the handshake completes.  For 3 it's always possible for a new client to pick a collision on connection ID (in fact, the odds are surprisingly good at scale), so the original is fine.  Only the change in 4 is what was intended.

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