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Re: [tsvwg] Review comments on a careful read of the L4S ID

Bob Briscoe <ietf@bobbriscoe.net> Fri, 07 May 2021 21:35 UTC

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To: Sebastian Moeller <moeller0@gmx.de>, Gorry Fairhurst <gorry@erg.abdn.ac.uk>
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From: Bob Briscoe <ietf@bobbriscoe.net>
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Date: Fri, 07 May 2021 22:35:46 +0100
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Subject: Re: [tsvwg] Review comments on a careful read of the L4S ID
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Sebastien,

On 07/05/2021 15:45, Sebastian Moeller wrote:
> 	[SM2] But QUICK is missing quite a number of the other requirements for a L4S-compatible protocol, so can clearly not be used for open-internet testing at the current time, no?

[BB] What exactly do you believe is missing?

If you add a scalable congestion control at the sender, by default from 
v1 of the IETF QUIC protocol, it provides the necessary accurate ECN 
feedback (and of course loss feedback) with no alterations required to 
the protocol.

See for instance https://github.com/qdeconinck/picoquic/tree/quic-prague 
where Quenten De Coninck added the Prague CC as it was at the time to 
QUIC in a couple of days at a hackathon (not maintained since, but it at 
least proved that QUIC had all the necessary facilities).



Bob

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________________________________________________________________
Bob Briscoe                               http://bobbriscoe.net/

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