Re: [quicwg/base-drafts] Restore CID sequence numbers (#1465)

[Nick Banks <[e-mail]>]

nibanks commented on this pull request.



> @@ -1834,7 +1834,12 @@ new connection IDs using the NEW_CONNECTION_ID frame.
 An endpoint might need to send packets on multiple networks without receiving
 any response from its peer.  To ensure that the endpoint is not linkable across
 each of these changes, a new connection ID is needed for each network.  To
-support this, multiple NEW_CONNECTION_ID messages are needed.
+support this, multiple NEW_CONNECTION_ID messages are needed.  Each
+NEW_CONNECTION_ID is marked with a sequence number.  Connection IDs MUST be used
+on only one local address, and each local address MUST advance to a connection
+ID with a later sequence number each time the connection ID changes.  Once a
+connection ID has been used, connection IDs with an earlier sequence number MUST
+NOT be used for packets with a greater packet number from that local address.

Ok, maybe instead of "Once a connection ID has been used, connection IDs with an earlier sequence number MUST NOT be used for packets with a greater packet number from that local address." something like "Once a new connection ID is used, earlier connection IDs MUST NOT be used for new packets sent from the new local address".

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