*** Notes/Analysis ***
* I took the average satellite Internet latency of 638ms (
https://en.wikipedia.org/wiki/Satellite_Internet_access) and tried 20/20mbit 320ms delay each direction. So here we have 20mbit symmetric Internet with Cake running on both the CPE and satellite- common config! I’m sorry we don’t have Tooway 6/22mbit anymore for a real test, which was also here in desperation at the house at some point.
* Since I left the default rtt setting for most tests, these tests are an exploration of what problems that can cause. I enjoy failed experiments though (I’m looking at you penicillin). Here we can see that as we increase Cake’s rtt setting, total bandwidth improves, generally:
* Cool. In this case, increasing rtt actually _improves_ host fairness, as opposed to what we see with Ethernet around rtt 1ms, although TCP RTT suffers:
* Sorry for the delay and not testing much in the last few days. R.I.P. our 16yo European housecat who left us yesterday. I really liked that cat. I’ve enjoyed looking at some of George’s results meanwhile...
*** Round 5 Plans
* If I do another high RTT test, make rtt 1000ms default and try even higher
* From Dave: tcp bbr, cdg, reno? dctcp would be weirdly interesting.
* From Dave: slot 4ms 4ms bytes 10k 16
* If I get time I could change flenter to do asymmetric bandwidth tests and go back to Dave’s four box config with ingress cake, which would probably be a more common config. All depends on time available…