Controllerless Networks

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Contributor I

2.4Ghz problems

We have a customer running a IAP netwrok in a very congested / dense area of a shopping centre, They have 3 IAP's managed by Central.

Many of their critical devices have a single 2.4Ghz radio. ARM is changing channels very 2 / 3 hours. 

What is considered a high 'Ch Busy perct @ beacon intvl '

The following is the output of one of their AP's

show ap debug radio-stats 1 | include beacon                                                           

Tx Time perct @ beacon intvl        11 11 11 11 11 11 11 11 11 12 12 12 12 12 12 12 12 12 16

Ch Busy perct @ beacon intvl        74 74 74 74 74 74 74 74 74 77 77 77 77 77 77 77 77 77 75

Rx Time perct @ beacon intvl        57 57 57 57 57 57 57 57 57 55 55 55 55 55 55 55 55 55 53

 

Just to add to the above I check the network while the shopping centre was closed and the channel utilisation was still very high @ about 50 to 60%. 

This was from one of the AP's when the building was closed.

Ch Busy perct @ beacon intvl        53 53 53 53 53 53 53 53 53 53

 

I dropped the AP power from 12 to 9 on the 2.4Ghz radios, disable client aware for a while and ARM dropped the AP radio powers to 9dBM. 

 

What else can we do to improve the 2.4Ghz network?

Re: 2.4Ghz problems

there will be very little you can do to improove the 2.4GHz network, especally in an enviroment like a shopping centre.  i would suggest moving to 5GHz.

ACCX#1050 ACMP CWDP CWSP
Contributor I

Re: 2.4Ghz problems

Yes, I think so too. Fundntaley the cusotmer has to support legcy devices that are 2.4Ghz only.

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