Re: [quicwg/base-drafts] Add a MESSAGE frame optimized for sub-MTU payloads (#814)

Igor Lubashev <> Wed, 20 December 2017 04:38 UTC

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Subject: Re: [quicwg/base-drafts] Add a MESSAGE frame optimized for sub-MTU payloads (#814)
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> Immediately passed up to the application, so no QUIC transport flow control is necessary.

So MESSAGE frames are congestion controlled but not flow controlled?  That means a receiver that is slower than the sender and the network will be dropping MESSAGEs, and that's ok?  It looks similar to UDP, of course, but it may be an opportunity to devise some feedback to let the sender make an intelligent decision about not causing "buffer bloat" on the receiver and wasting bandwidth on MESSAGEs that will likely be dropped.

Note: since MESSAGE frames can share a packet with STREAM frames, the packets have to be ACKed by the receiver, even if MESSAGEs end up being dropped.

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