FCC proposes higher speed goals (100/20 Mbps) for USF providers

Tue Jun 7 15:48:11 UTC 2022

On Tue, Jun 7, 2022 at 8:24 AM Livingood, Jason via NANOG
<nanog at nanog.org> wrote:
>
> A related observation – years ago we gave cable modem bootfiles to a group of customers that had no rate shaping according to their subscription and compared that to existing customers (with an academic researcher). The experiment group did not know of the change, so it could not influence their behavior. We observed that peak demand generally hit a plateau that was well below available capacity & this was driven by existing applications & associated user behavior. There’s obviously a chicken-or-egg problem with capacity & apps to use that capacity, but most ISPs raise end user speeds at least annually and try to stay ahead of increases in peak demand.

I think peak demand should be flattening in the past year? There's
only so much 4k video to consume, so many big games to download?

My curve seems closer to a doubling of the average usage over 10
years. It would be really radical of me to
start yelling "peak bandwidth" a la peak oil without more study...

A very informal survey of those that had deployed higher rates on
mikrotik stuff at WISPAMERICA had all 5 of the people rolling their
eyes and saying avg downloads had gone from 2 to 3Mbit upon doubling
or more their allocated bandwidth, and they had no congestive issues
on their network peering.

There was also a technical limitation in the mikrotik deployment in
that they use very short queues by default (50 packets) for either the
fifo or (the common) SFQ deployments. Shapers were universally used by
this small group, and they were
unaware of the sideffects of such short queues.  I also took apart a
recent ubnt 60Ghz radio's behaviors, and that was FQ'd
and also with very short queues... and what looked like ack
synthesis... with no options to change the configuration. I am
thinking in part the lack of measured WISP "demand" for more bandwidth
is in part due to overly short (as opposed to bufferbloated) queues!

There's a really long  thread over here with the mikrotik userbase
going to town on fq_codel and cake:
https://forum.mikrotik.com/viewtopic.php?p=937633#p925485

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> JL
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> From: NANOG <nanog-bounces+jason_livingood=cable.comcast.com at nanog.org> on behalf of Jim Troutman <jamesltroutman at gmail.com>
> Date: Monday, June 6, 2022 at 19:29
> To: Tony Wicks <tony at wicks.co.nz>
> Cc: "nanog at nanog.org" <nanog at nanog.org>
> Subject: Re: FCC proposes higher speed goals (100/20 Mbps) for USF providers
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> Some usage data:
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> On a rural FTTX XGS-PON network with primarily 1Gig symmetric customers, I see about 1.5mbit/customer average inbound across 7 days, peaks at about 10mbit/customer, with 1 minute polling.  Zero congestion in middle mile, transit or peering.
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-- 
FQ World Domination pending: https://blog.cerowrt.org/post/state_of_fq_codel/
Dave Täht CEO, TekLibre, LLC