[Cake] separate shaping of wifi

[Jonathan Morton]

> On 4 Feb, 2019, at 12:04 am, Jonas Mårtensson <martensson.jonas at gmail.com> wrote:
> 
> I'm running OpenWrt with sqm on my home router. Is there any potential problem with enabling sqm with cake on both eth0 (wan) and wlan0? The reason for doing this is that if I only do shaping on the wan interface I still get bad uplink bufferbloat on wifi. I assume this is because the bottleneck in this case is actually the wifi and the bloat is in the end device (laptop, phone, etc.). By shaping to a rate lower than the wifi rate, the bloat disappears. Is there any better way to accomplish this than to enable a second sqm instance on wlan0 if I don't want to sacrifice speed for wired devices?

Aside from fixing the end device so it isn't bloated in the first place, I think you have a reasonable solution there.  You might only need to limit the ingress rate on wlan0, if your router's wifi stack is debloated.

 - Jonathan Morton