[Codel] [Make-wifi-fast] Software rate limiting with fq_codel for point-to-point WiFi backhaul links

[Jonathan Morton]

> On 9 Dec, 2016, at 12:12, Phineas Gage <phineas919 at gmail.com> wrote:
> 
> Given the half-duplex nature of 802.11 WiFi, is it possible to use fq_codel with software rate limiting on separate hardware from the WiFi radio, while still allowing at or near the full WiFi link rate?

Given that you can’t reliably predict the actual wifi throughput from userspace, and that it will vary over time due to external interference and path attenuation, that would be difficult.

However, you *can* loop both the ingress and egress traffic through a common IFB interface, and shape that - using Cake, even.  That sounds like what you’re trying to experiment with.

 - Jonathan Morton