Re: [quicwg/base-drafts] Migration with zero-length CID is inadvisable (#3563)

[Martin Thomson <[e-mail]>]

@martinthomson commented on this pull request.



> @@ -2246,6 +2246,14 @@ that packet numbers cannot be used to correlate activity.  This does not prevent
 other properties of packets, such as timing and size, from being used to
 correlate activity.
 
+An endpoint SHOULD NOT initiate migration with a peer that uses a zero-length
+connection ID, for two reasons. First, if the peer routes incoming packets using

This is specifying the client reaction to the situation when disable_active_migration is not set, that's all.  Mostly the second reason applies here, as you are right that the server is responsible for that, but it doesn't mean that it is untrue.

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