Re: [quicwg/base-drafts] Limit RCID state (#3547)

martinduke <notifications@github.com> Tue, 31 March 2020 16:04 UTC

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Subject: Re: [quicwg/base-drafts] Limit RCID state (#3547)
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@martinduke commented on this pull request.



> @@ -1069,6 +1069,15 @@ to cease using the connection IDs when requested can result in connection
 failures, as the issuing endpoint might be unable to continue using the
 connection IDs with the active connection.
 
+An endpoint SHOULD limit the number of outstanding RETIRE_CONNECTION_ID frames
+to bound the necessary state. In order to allow a peer to retire all previously
+issued connection IDs, the limit on the number of outstanding
+RETIRE_CONNECTION_IDs SHOULD be at least the active_connection_id_limit. An

Alright, I implemented this PR this morning and it's quite lightweight. Moreover, it's fully interoperable with draft-27.

#3550 is a much more drastic change in behavior that will break interoperability. draft-27 NCID senders will wait for RCIDs that will never come. If we're going to make a breaking change I'd just as soon we go to #3553 and have a comprehensive solution that is less likely to end up with corner cases.

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