topic Re: Channel Utilization 100% for AP410's in ExtremeCloud IQ

Channel Utilization 100% for AP410's

Macknkss — Tue, 27 Aug 2024 20:58:46 GMT

Hello. Hoping to get an answer to why channel utilization is 100% on all our APs when running the command "show acsp neighbor". I opened a case related to this when we first implemented the wireless network but support thought it was a false reading. Now it's been months and we're still seeing the same thing. The screen print is just a small sample. Our network is barely being used at the moment so it's not high utilization, maybe 1 to 5 users per AP. Appreciate any ideas, thanks.

Mack

Re: Channel Utilization 100% for AP410's

Jan_Reister — Thu, 29 Aug 2024 11:43:11 GMT

The snippet shows high CU on channel 165. There are interference sources in U-NII-3 band (more precisely, ISM 5.725 - 5.875 GHz band) from motion sensors (used in lighting control) and other building sensor devices.

You could do a spectrum analysis in 5 GHz to find out.

Re: Channel Utilization 100% for AP410's

Macknkss — Thu, 29 Aug 2024 20:50:31 GMT

Thanks Jan that is very interesting. This AP is close to conference rooms with lights controlled by sensors. Shouldn't Cloud IQ be smart enough to see the high CU and adjust to a new channel?

Re: Channel Utilization 100% for AP410's

Bartek — Fri, 30 Aug 2024 08:04:23 GMT

@Macknkss wrote:
Shouldn't Cloud IQ be smart enough to see the high CU and adjust to a new channel?

Do you have a valid XIQ Co-Pilot license in your system for that? For DFS channels there is an algorithm to detect radars in vicinity and in this scenario, AP changes channel by itself.

Re: Channel Utilization 100% for AP410's

Jan_Reister — Fri, 30 Aug 2024 12:42:05 GMT

Channel switch depens on thresholds, timing and other logic that are configurable. You don't want an AP flapping between channels.

You can control it in Configure > Common Objects > Radio Profiles > Advanced Settins > Dynamic Channel Switching

Pro tip: clone an existing radio profile, then apply it to your AP template.

@BartekCoPilot is very cool, but DFS (for radar coexistence) and channel switching do not require extra lineces.

Re: Channel Utilization 100% for AP410's

Macknkss — Tue, 17 Sep 2024 14:24:32 GMT

We do have Co pilot. As I was saying though, on a floor with 12 APs, 3 all within range of one another would be on the same channel. Since switching to DFS everything seems to be much better. Nice having all these channels that the apartments accross the street aren't using.