[Cake] STEAM tcp algo from CDN?

[Jonathan Morton]

> On 9 Mar, 2021, at 10:20 pm, Dave Taht <dave.taht at gmail.com> wrote:
> 
> 10-20 flows, cubic, last I looked. It's ugly.

I can't confirm CUBIC from here, but it seems to be 4-8 flows in parallel now.  Latency to the national CDN is about 22ms over LTE, so it's hard to distinguish CUBIC from anything else in particular; in this range it would look a lot like NewReno.  It seems to shut down each flow and start a fresh one after about a minute.

It does have ECN enabled and seems to be producing CWR flags in response at the correct times.  With this small a BDP (I've throttled down quite hard due to the amount of videoconferencing I'm doing at peak hours this week), it quickly ends up getting CE marks on almost every data segment.  This is actually fine, since it's then controlled nicely by ack-clocking and FQ.

 - Jonathan Morton