Re: [quicwg/base-drafts] Handling of Retire Prior To field (#3046)

Kazuho Oku <> Tue, 17 September 2019 16:50 UTC

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From: Kazuho Oku <>
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Subject: Re: [quicwg/base-drafts] Handling of Retire Prior To field (#3046)
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My personal take is that it would be nice if the processing of NEW_CONNECTION_ID frame and RETIRE_CONNECTION_ID frame can be an optional feature. QUIC is already very complex, and it would be beneficial to have some features being optional, in sense that endpoints can simply discard certain frames when not implementing certain features.

IIUC, at the moment, these two frames are optional for an endpoint that do not support migration.

OTOH, from the robustness viewpoint of the protocol, it does make sense to change the text to MUST. We might have already crossed the river by introducing the Retire Prior To field.

The third option is to add a TP that indicates if an endpoint supports retirement of connection IDs...

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