[AusNOG] Traffic volumes & COVID19 impact?

[James Andrewartha]

They're not all in one meeting, that's 130 different meetings conducted 
once. The number of classes is about 90, but they can be split into 
breakout rooms which increases the number. We aren't doing large VCs, and 
in fact BBB doesn't recommend more than 100 people in a room, since 
freeswitch (which BBB uses) tends to shit itself and screw up further 
meetings held after on the same server. We did one test with 130 students 
in a single meeting and freeswitch was using 50% of a 20-core VM, starving 
out the other processes.

On Fri, 3 Apr 2020, Jason Leschnik wrote:

> Still shaking my head trying to understand why on a 100-500 person VC you need 500 people all sharing video at the same time. 
> 
> On Fri, 3 Apr 2020 at 19:19, James Andrewartha <trs80 at ucc.gu.uwa.edu.au> wrote:
>       On Fri, 3 Apr 2020, Bevan Slattery wrote:
> 
>       > It’s all relative.  Streaming still makes up the vast amount of capacity usage, but yeah Video conferencing type
>       data has
>       > increased significantly.  This will only grow over time once school goes back and the vast majority of students
>       are logging in
>       > all together for the first time.  Hold on!
> 
>       I work for a school and we rolled our own video conferencing solution
>       using BigBlueButton. Currently we're running a mix of servers in Azure and
>       on-prem, but will be bringing it fully on-prem once we buy some more Ryzen
>       whiteboxes. For 1650 students we're pushing 1Gbps at peak in the morning,
>       during the rest of the day it sits about 400Mbps. It's given me a new
>       appreciation for those who run this sort of solution at scale.
> 
>       O365 is creaking under the load, 24 hour delays on provisioning are normal
>       at the moment.
> 
>       Thanks,
> 
>       James_______________________________________________
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> 
> 
>