07-02-2015 11:25 PM - edited 07-05-2021 03:30 AM
Hi All,
We are having 5508 controllers and 3702 access points. We see many of the ap's are showing high channel utilization and facing client disconnection. code 7.6.130.0.
Also we found that RRM , rf grouping leader controller ap are showing as nearby ap instead of the ap registered to this controller.
Solved! Go to Solution.
07-19-2015 01:24 PM - edited 02-27-2020 05:01 AM
High channel utilization can have a lot of reasons, I make the assumption that we are talking about 2.4GHz here. Most of the times high channel utilization is being seen on the 2.4GHz due to the limited (non overlapping) channels and the fact that 2.4Ghz reaches about 2 times further than 5GHz signals do. But there are a few thing we can do to make the best of it.
First of all what is your definition of "high"? If you look at the channel utilization of one of the access-point radios you will also see a "radio RX" and "radio TX" value. Those values show how much channel utilization that access-point radio is responsible for. When those values are low but the channel utilization is still much higher you run into something called co-channel interference (CCI). This basically means that other access-points in the neighborhood are using the same channel.
Now, if those other access-points are yours we can do the following things to make things better:
You need to do a site survey before and after doing one of these things, if you really want to know the outcome. Use with caution.
Please rate useful posts... :-)
07-02-2015 11:51 PM
Hi Prasan,
Can you please check the data rates on both the radios:-
Attach the output of the following:-
Wireless>>802.11a/n/ac>>Network>>Data rates
Wireless>>802.11b/g/n>>Network>>Data rates
Regards,
Shubham
07-03-2015 12:20 AM
07-19-2015 01:24 PM - edited 02-27-2020 05:01 AM
High channel utilization can have a lot of reasons, I make the assumption that we are talking about 2.4GHz here. Most of the times high channel utilization is being seen on the 2.4GHz due to the limited (non overlapping) channels and the fact that 2.4Ghz reaches about 2 times further than 5GHz signals do. But there are a few thing we can do to make the best of it.
First of all what is your definition of "high"? If you look at the channel utilization of one of the access-point radios you will also see a "radio RX" and "radio TX" value. Those values show how much channel utilization that access-point radio is responsible for. When those values are low but the channel utilization is still much higher you run into something called co-channel interference (CCI). This basically means that other access-points in the neighborhood are using the same channel.
Now, if those other access-points are yours we can do the following things to make things better:
You need to do a site survey before and after doing one of these things, if you really want to know the outcome. Use with caution.
Please rate useful posts... :-)
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