Re: Call for Adoption: Careful resumption of congestion control from retained state with QUIC

Martin Thomson <mt@lowentropy.net> Wed, 13 July 2022 12:50 UTC

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Date: Wed, 13 Jul 2022 22:50:02 +1000
From: Martin Thomson <mt@lowentropy.net>
To: Gorry Fairhurst <gorry@erg.abdn.ac.uk>, quic@ietf.org
Subject: Re: Call for Adoption: Careful resumption of congestion control from retained state with QUIC
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On Wed, Jul 13, 2022, at 19:02, Gorry Fairhurst wrote:
> I'm unsure why you think the QUIC protocol is not the best place to 
> consider such an extension. QUIC has various features that make it a 
> much easier place to do this type of change - the design of the 
> transport, the ability to update implementations, and a design which 
> implies pacing, security, etc. 

Simple test: if you took "QUIC" out and replaced it with DCCP, the draft would still work.  This is a congestion control document, not a QUIC one.

Sure, QUIC is a great testbed.  I expect that this will work there.  It will also work very nicely with TCP.  Google was doing something very similar ~10 years ago in TCP, though maybe less measured and careful.