[Babel-users] [PATCH 2/3] Add ECN support to babel messages

[Juliusz Chroboczek]

>>> I think I agree with Juliusz here, I'd prefer Babel stay truthful and
>>> instead change how fq_codel reacts to it.

>> Yeah, perhaps fq_codel is not tolerant enough of bursts of packets.

> Heh, I'm not sure there's a proper response to a large burst of
> back-to-back packets that won't suck for all other traffic...

I'm not a specialist, but my uneducated intuition would be that fq_codel
can be tuned less agressively than plain codel -- the FQ element will
prevent undue delay for unrelated flows.

Which doesn't mean we shouldn't tune babeld (and BIRD) to generate traffic
that's less bursty.  But first, I need to understand fq_codel's behaviour
better; I've got an experimental setup in mind, but it's pretty low on my
to-do list right now.