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quicwg / multipath

In-progress version of draft-ietf-quic-multipath
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When to send PATH_STATUS #272

Closed kazuho closed 10 months ago

kazuho commented 11 months ago

Is an endpoint allowed to send PATH_STATUS frames for DCID=X before it observes X being used?

I think it would be natural especially for servers to bundle a NEW_CONNECTION_ID frame of DCID=X and a PATH_STATUS frame of DCID=X. That's the easiest way of declaring that all paths can be used for sending data.

However, the draft is vague if such behavior is allowed, or if it is forbidden to send PATH_STATUS frames before receiving a packet that uses that DCID value.

Hence opening the issue.

mirjak commented 10 months ago

I think we briefly discussed this at the last meeting and yes, I think we should allow this and yes, I think we should be more explicit in the text.