Re: [quicwg/base-drafts] Connection ID DT output (#1742)

[Mike Bishop <[e-mail]>]

MikeBishop commented on this pull request.



> +({{frame-connection-id-finished}}).
+
+Implementations SHOULD ensure that peers have sufficient connection IDs
+available to reduce the possibility of peers exhausting their supply of
+available connection IDs.  An implementation could do this by always supplying a
+new connection ID for each connection ID retired with a CONNECTION_ID_FINISHED
+frame. When a receiver of a packet notices that its peer is now using a
+previously unused connection ID, it can choose to supply its peer with a new
+connection ID using a NEW_CONNECTION_ID frame to reduce the possibility of its
+peer running out of available connection IDs.
+
+An endpoint that receives a packet with a different remote address than
+previously used SHOULD also switch to sending with a different connection ID.
+This can help to ensure that different connection IDs will be used in both
+directions when an endpoint migrates to a new path or changes connection ID on
+an existing path.

Technically, it doesn't do anything for changes on the existing path, but that's okay because the session is linkable anyway if you're on an existing path.

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