Re: [quicwg/base-drafts] Require peers to check if RETIRE_CONNECTION_ID sequence number is valid (#3037)

Nick Banks <> Tue, 17 September 2019 14:52 UTC

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Subject: Re: [quicwg/base-drafts] Require peers to check if RETIRE_CONNECTION_ID sequence number is valid (#3037)
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@kazuho sorry. You're right, I mean the NEW_CONNECTION_ID frame's Retire Prior To field. But I disagree on your interpretation of the `SHOULD`:
> Upon receipt, the peer SHOULD retire the corresponding connection IDs and send the corresponding RETIRE_CONNECTION_ID frames in a timely manner. Failing to do so can cause packets to be delayed, lost, or cause the original endpoint to send a stateless reset in response to a connection ID it can no longer route correctly.

The `SHOULD` is for `in a timely manner`. If you don't do it, the connection **will** eventually break, likely via a stateless reset.

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