Re: [quicwg/base-drafts] Required state for retaining unacked RETIRE_CONNECTION_ID frames is unbound (#3509)

Eric Kinnear <notifications@github.com> Thu, 12 March 2020 02:28 UTC

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Subject: Re: [quicwg/base-drafts] Required state for retaining unacked RETIRE_CONNECTION_ID frames is unbound (#3509)
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Clarification question: If the person sending RCID isn't getting ACKs back, I think we still need to assume that those CIDs are being replaced? If not, then the non-RPT side of this would just mean the person sending RCID frames runs out of CIDs to use and has to stop.

So the problem statement is that: this person is running over their max_active_cid limit from the perspective of the person withholding ACKs, but each side has their own view and so the person retiring them stopped counting them as active once the frame was sent (but not acknowledged). 
And that can happen via RPT as well, just because it means that they're going to be instructed to send the RCID, but the problem is the same either way?

(Just want to make sure I'm understanding the problem correctly)

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