[Make-wifi-fast] Re: [Bloat] Re: [Codel] [Rpm] Re: Re: [Cake] "Fi-Wi is a new forwarding plane for wireless" - Bob McMahon

[Frantisek Borsik <frantisek.borsik@gmail.com>]

Great stuff, guys.

Btw, here is a nice case study - UBNT 6GHz deployed as scale:
https://www.youtube.com/watch?v=0apgiKipZG8
https://www.thewlpc.com/presentations/80-mhz-channels-with-10k-clients-reviewing-a-high-density-5-6-ghz-deployment-prg-25
https://cdn.prod.website-files.com/668c65f00da036973d4b1edd/6904448c4e412072a9248c72_WLPC%20Prague%202025.pdf



"6500 people in the main venue and 2000 in an auxiliary building

Design requirement for 15,000 clients, and we blew past that.

17,000 clients on Wi-Fi

27,000 total unique MAC addresses"

Despite all the issues, it's just amazing what the new Wi-Fi can do. If
only we can get CAKE/FQ-CoDel on every frickin' port. Every hop fixed, we
would be living in paradice, Wi-Fi wise (and yet, we would be still
complaining, hahaha)

I'm not a huge fan of UBNT, they should do better...but this is nice.

All the best,

Frank

Frantisek (Frank) Borsik


*In loving memory of Dave Täht: *1965-2025

https://libreqos.io/2025/04/01/in-loving-memory-of-dave/


https://www.linkedin.com/in/frantisekborsik

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frantisek.borsik@gmail.com


On Mon, Jun 8, 2026 at 8:53 AM David Lang <david@lang.hm> wrote:

> bob.mcmahon@umbernetworks.com wrote:
>
> >> you may be able to make a dent in the AP use of airtime, but how are
> you
> >> going to coordinate the wifi devices you are talking to that are using
> so
> >> much of it, and doing most of the hidden transmitter stomping on each
> >> other? you can do channel allocation and lower the AP power to reduce
> (and
> >> if you can use DFS channels almost eliminate) the APs stepping on each
> >> other, but doesn't solve the mobile device coordination.
> >>
> >
> > David,
> >
> > The first answer is RRH density.
> >
> > With many RRHs distributed through the building, each RRH serves a
> smaller
> > number of STAs in a smaller physical area. STAs associated to the same
> RRH
> > are much more likely to hear each other, so the hidden-node precondition
> > becomes less common by construction. Hidden node requires two STAs that
> > cannot hear each other but share the same AP. Shrink the cell and the
> > geometry works in your favor before any other mechanism is applied.
>
> to support the 3000+ users, I deploy over 120 openWRT APs, as many as 10
> in a
> single room (usually 5+)
>
> David Lang
>