[Bloat] Comcast & L4S

[Jonathan Morton]

> On 1 Feb, 2025, at 4:33 pm, Sebastian Moeller via Bloat <bloat at lists.bufferbloat.net> wrote:
> 
> …Comcast's use of the Internet Engineering Task Force's Low Latency Low Loss Scalable Throughput (L4S) standards…

That's the tail wagging the dog - but precisely the kind of non-specialist misunderstanding that L4S' hijacking of the IETF process was designed to foster.

It's an EXPERIMENT that the IETF has been BROWBEATEN by Comcast into PERMITTING to occur.  It is NOT a STANDARD, and it was NOT IETF-led.  Every single design suggestion that IETF proposed, to improve coexistence with other schemes that ARE IETF standards, was resisted or outright ignored.

As with NQB, Cake already does essentially what L4S requires, except for default-configured Codel being less than ideal as an AQM for producing congestion signals for a DCTCP-type response.  I have no intention of modifying Cake to *specifically* accommodate L4S in any way.  If their crap doesn't work properly in a standards-compliant environment, that's THEIR problem.

 - Jonathan Morton