[Ecn-sane] IETF 110 quick summary

[Steven Blake]

On Tue, 2021-03-09 at 12:31 -0500, Steven Blake wrote:

> Their whole safety plan depends on the claim that Classic RFC 3168
> ECN 
> is not deployed (except in fq_codel on the edge; who cares? they can
> patch their code). If that were the case, it would make more sense
> for
> them to try to move classic ECN to historic and redefine ECT(0) to
> signal L4S traffic (ala DCTCP). 

Actually, that is the ideal outcome. ECT(0) signals ECT-Capable, ECT(1)
and CE signal two levels of congestion. In other words, SCE everywhere.

Maybe that is an argument that you can throw at them: if it is safe to
ignore classic ECN, might as well move straight to SCE with non-ECT
traffic shunted off to a separate queue(s).


Regards,

// Steve