[Ecn-sane] is FQ actually widely deployed?

[Jonathan Foulkes]

> 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.

I wish I could get some ‘large ISPs’ to pay attention, as they have some of the worst issues. But our ISP base is mostly smaller, rural ISPs with the usual challenges using legacy copper or older DOCSIS deployments. But I have also seen benefits on many a higher-capacity, modern infrastructure. Not sure how they allow bloat on some of the setups, but they do, and a CPE with a decent AQM (like Cake) makes a measurable difference.

Since this is also going to the ecn-sane list, let me say that having an AQM that is ECN-aware (like Cake with the ECN flags enabled) is major win for user-experience, as when combined with modern OSs that respect ECN, the immediate reaction to the congestion signaling is wonderful. Also nice that tests like the DSLreports.com speedtest, who grade packet-loss (the usual congestion signaling) as ‘Quality’ now consistently grade lines as an A in that metric with ECN signaling. 

Regards,

Jonathan Foulkes
CEO - Evenroute.com

> On Jul 22, 2019, at 11:20 AM, Jonathan Morton <chromatix99 at gmail.com> wrote:
> 
>> 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.
> 
> - Jonathan Morton