[NNagain] NYT: Teaching from home is hard

[Dave Taht <dave.taht@gmail.com>]

https://www.nytimes.com/2023/11/18/opinion/pandemic-school-learning-loss.html

especially without the right equipment and skills.

From: https://forum.openwrt.org/t/nftables-and-qos-in-2021/112013/530

“I literally spent multiple days walking my friend through installing
OpenWrt on a gl-inet router, configuring several APs, connecting up
powerline networking equipment and configuring cake in 2 or 3 spots on
his network (both at the router towards the WAN and across the
powerline segments to keep them from saturating). His wife was
teaching anatomy classes, needed a camera on her face, a camera on her
desk where she was showing images and drawing diagrams, and I think a
camera on a microscope. All that just for her. They had something like
a 600/60 DOCSIS connection, and in addition to all the interactive
teaching she was doing, he was in video meetings all day and both
their kids in online school, plus they were living with his parents
during the stay-at-home period. so there were maybe 6 or so devices
video streaming at any given moment throughout the day. The full
download capacity of that internet connection was close to 10x the
powerline speed... Expanding to 3 APs, ethernet over powerline, and
cake to limit all the bottlenecks including over the powerline (which
at best was getting something like 70Mbps reliably...) with Diffserv4
and prioritization and network segmentation and all that stuff... they
could seamlessly walk through the house roaming from AP to AP with
everyone getting 0 latency issues after a week of configuration....
Before all that work no-one could understand any of her lectures at
all and she was literally in danger of losing her job."

I imagine nearly every science teacher suffered this way, and few
found enough help.



-- 
:( My old R&D campus is up for sale: https://tinyurl.com/yurtlab
Dave Täht CSO, LibreQos