On Sat, 19 May 2018, bkil wrote:In reply to this thread:
https://lists.bufferbloat.net/pipermail/make-wifi-fast/2018-April/001787.html
Sorry for the late response, although I can see from yesterday's
SmokePing plots that the issue still prevails.
1.
You should definitely not allow rates as low as 1Mb/s considering:
* plots of signal vs. rate,
* topology of closely packed cabins;
* mostly static, noise-free camp ground.
Almost all of your clients were able to link with >20Mb/s even at
70-80dBm. Those below were probably just idling. I'd limit the network
to 802.11g/n-only, and would even consider disabling all rates below
12Mb/s.
I have been wanting to do this on my APs for Scale (wndr3800 APs with ath9k chipsets) and have been unable to find how to do this on these chipsets.
I also didn’t manage to disable specific MCS rates:
- supported_rates and basic_rate in /etc/config/wireless seem to only affect legacy rates, not ht-mcs-2.4 rates.
- "iw dev wlan0 set bitrates” only sets the transmit rate for the AP
But what I did do at 10:45am today, June 8, was disable 802.11b rates with:
uci set wireless.radio0.legacy_rates=‘0'
uci commit
reboot
So at least the minimum rate should be limited to 6Mbit. We’ll see if this helps in the next few days as the camp fills, and if I hear any complaints: