> On Mar 27, 2020, at 22:41, Dave Taht <[email protected]> wrote:
>
> "put everyone on a schedule"... sigh
Sorry to disagree a bit, but I consider this to be conceptually decent
advice. If a problem can be avoided by a simple behavioral change, recommending
that change seems quite reasonable. Sure, the crowd here on the bloat list,
probably has sufficiently competent AQM* in place to not having to change their
behavior, but for the majority of links/users/home networks this recommendation
seems reasonable. And certainly easier to implement by everybody that
recommending to deploy competent AQM...
Also there are quite some misconceptions floating around, even in
tech-circles, about the effect of "cyclically pumped" traffic like "adaptive"
streaming on concurrent latency sensitive flows on standard consumer-grade
internet access links. Quite a number of voices in Germany criticized the
EU/BEREC as uninformed and incompetent for "convincing" content providers to
reduce streaming traffic**, based on the believe in that adaptive streaming is
side-effect free as it probes the available bandwidth and would not cause
congestion by itself.
Alas, on non-fq'd links adaptive streaming is not free of side-effects,
but causes cyclic latency increases on the link that sufficiently latency
sensitive traffic will expose. So far, it only were on-line twitch-type gamers
that noticed this but both remote desktop and video conferencing applications
are latency sensitive enough that the newly delegated to home-office crowd
takes note as well.
Best Regards
Sebastian
*) I wonder how well macos devices stack-up here, given that they default to
fq_codel (at least over wifi)?
**) What happened in reality, is that the EU/BEREC informed European ISPs under
which conditions they would be permitted to use traffic engineering to reduce
traffic load caused by streaming video (in short, as long as it is to avoid
network overload and applies to all video streaming independent of source,
throttling/blocking/policing is considered fair game in the current
circumstances). Most major video streaming sources understood that correctly
and voluntarily offered to reduce their bitrates; which strikes as both crafty
politics by the EU in pro-actively laying out how ISPs could deal with actual
overloads, and economically crafty by the content side to realize that
voluntary reductions keep the control over the "how" in their court. So, well
played by both sides ;)
>
> https://www.fcc.gov/home-network-tips-coronavirus-pandemic
>
>
> --
> Make Music, Not War
>
> Dave Täht
> CTO, TekLibre, LLC
> http://www.teklibre.com
> Tel: 1-831-435-0729
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