Re: [quicwg/base-drafts] CID Lifetime Management (#1496)

[Nick Banks <[e-mail]>]

nibanks commented on this pull request.



> + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                         Sequence (i)                        ...
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+~~~
+
+The fields in the RETIRE_CONNECTION_ID frame are as follows:
+
+Sequence:
+: Sequence number of the oldest connection ID issued by the sender which the
+  sender will still recognize as associated with the current connection. The
+  sequence number is formatted as a variable-length integer.
+
+Upon receipt of a RETIRE_CONNECTION_ID frame, an endpoint MUST consider
+connection IDs older than the specified sequence number as unusable and MUST NOT
+consider the associated stateless reset tokens to be valid. If an older

I agree that we can follow up on the migration logic separate from this discussion. For this PR though, I don't think we should use a window style for CIDs. I think it restricts implementations from doing other things.

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