[Ecn-sane] is FQ actually widely deployed?

[Toke Høiland-Jørgensen]

Jonathan Morton <chromatix99 at gmail.com> writes:

>> On 22 Jul, 2019, at 10:14 am, Mikael Abrahamsson <swmike at swm.pp.se> wrote:
>> 
>> Do we have numbers on how much FQ is actually out there? If we don't,
>> can we measure it? Anyone know of devices shipping or being designed
>> that does FQ of some kind?
>
> Linux and OSX end hosts now routinely run fq_codel by default. That's
> an awfully large installed base, both of FQ and of Codel. It is
> perhaps worth observing that these are rarely bottlenecks for Internet
> paths, though they might be for LAN paths.
>
> The IQrouter is probably the best example of a commercial middlebox
> that does FQ, in this case using Cake. I hear that it is now being
> sold in re-branded form to certain large ISPs, but I could be wrong
> about that. I've CC'd Jonathan Foulkes for comment.
>
> There's also a large French ISP which has done fq_codel on its last
> mile for quite some time.

I am aware of at least two Danish and one Norwegian ISP that have
deployed FQ-CoDel-based shapers either as their customer shapers in the
backend or on CPEs.

Anything derived from OpenWrt will also use FQ-CoDel on both WiFi and
wired links. Not sure how common those are, though...

-Toke