[Make-wifi-fast] Upcoming WiFi standard to set per-flow DSCP values?

Toke Høiland-Jørgensen toke at toke.dk
Tue Jan 4 16:49:56 EST 2022


Jon Pike <jonpike54 at gmail.com> writes:

> Might it have to do with these RFC's?
>
> https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=a5e3def1822431ef6436cb493df77006dbacafd6

Don't think so; that's just the standard static mapping. Bob pointed me
to this:
https://www.wi-fi.org/downloads-registered-guest/Wi-Fi_CERTIFIED_QoS_Management_Technology_Overview_202110.pdf/37425

which seems to be the right thing (you can just input garbage into the
form to download the PDF). It is a mechanism where the AP and client can
request of each other to apply certain DSCP markings (and thus WiFi WMM
classes) to certain flows. The document has gems like:


> To deliver good quality of experience in these applications it is
> essential that Wi-Fi networks support a range of service categories
> that differentiate and prioritize data flows for such applications.
> Wi-Fi networks that give equal priority access to all connected
> devices and data flows cannot provide the throughput and stability
> required when traffic demands exceed the available bandwidth. This
> negatively impacts the user experience.

and:

> The efficient use of unlicensed spectrum used by Wi-Fi requires good
> faith use of mechanisms that enable prioritized access to that
> spectrum. Therefore, it is important that all entities that leverage
> Wi-Fi QoS Management features do so in a reasonable and responsible
> manner.

So yeah, that'll all end well...

Also, what is it with people wanting to provide AR in sports stadiums?
Crops up in all these "future of wireless" type marketing presos...

-Toke


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