Re: [quicwg/base-drafts] Permit 0-RTT after Retry and VN (#1514)

[Martin Thomson <[e-mail]>]

martinthomson commented on this pull request.



> @@ -778,6 +783,33 @@ are in a different packet number space to other packets (see
 {{packet-numbers}}).
 
 
+### 0-RTT Packet Numbers {#retry-0rtt-pn}
+
+Packet numbers for 0-RTT protected packets use the same space as 1-RTT protected
+packets.
+
+After a client receives a Retry or Version Negotiation packet, 0-RTT packets are
+likely to have been lost or discarded by the server, especially if the server
+changes its connection ID with a Retry packet.  A client MAY attempt to resend

Yeah, this is right.  In order of likelihood that packets are unusable:

1. VN with unsupported version
2. Retry w/ connection ID change
3. Retry w/o connection ID change or VN with preferred alternative version

I don't know why I missed that.  Reworded.

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/quicwg/base-drafts/pull/1514#discussion_r200946722