My understanding per the thread is a last hop wifi link.  I could be wrong
though.

Bob

On Sun, Dec 3, 2017 at 2:35 AM, Juliusz Chroboczek <jch@irif.fr> wrote:

> > It might be preferred to modify EDCA parameters to reduce media access
> > latencies for TCP acks rather than spoof them.
>
> I'm lost here.  What exact problem is the ACK hack supposed to work
> around?  Ridiculous amount of asymmetry in the last-hop WiFi link, or
> outrageous amounts of asymmetry in a transit link beyond the last hop?
>
> -- Juliusz
>