[Cake] Cake - flow (or host) weight request - how to implement

[Stephen Hemminger]

On Wed, 27 Sep 2023 17:48:06 +0000
Jan Rovner via Cake <cake at lists.bufferbloat.net> wrote:

> Hello,
> 
> I am trying to experiment with sch_cake.c, my goal is to ad-hoc prioritize / deprioritize traffic served to specified a host(s). The prioritization would be controlled by an external system and it should handle well the situation where a host has active flow(s).

Is it possible to use one or more existing BPF hooks to change DCSP bits for that paths you wish to adjust.
The point is that changes to upstream base code are hard to maintain, and that is what BPF initial hooks
were meant to provide.