Wireless Access

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Occasional Contributor I
Posts: 9
Registered: ‎01-13-2014

Quality "poor" - is this an actual problem?

I am trying to understand what the controller dashboard is telling me. I've got red text saying "poor" for quality on an Access Point. (see image 1) The help popup says  it is based on noise floor, channel utilization, interference and client association.

 

Looking at the details (image 2) the total clients is 57, which is high but I still have 7 spots available, the other values seem ok I think.

 

Is it just because of the number of clients or is there a real problem?

 

Contributor II
Posts: 49
Registered: ‎10-11-2013

Re: Quality "poor" - is this an actual problem?

I don't see 'Poor' as an outright problem, but it's definately something to take into consideration if you are striving for killer performance.

 

My guess is that the high client number is driving the 'poor' status.

It really depends on use case though. If users want to associate and grab email or a basic web page their experience would probably be fine. Concurrent streaming of 4k video... eh not so much!

 

The scary part about high client association is that ARM functions start to degrade as the user counts rise. The channel scanning becomes less frequent since the AP hardware is busy with users. There's also a threshold (can't recall the exact value) where ARM will stop adjusting channels if too many users are associated. Dedicated AirMonitor's are a good idea for areas where AP's are user-heavy.

 

 

Guru Elite
Posts: 21,274
Registered: ‎03-29-2007

Re: Quality "poor" - is this an actual problem?


LyndenMark wrote:

I am trying to understand what the controller dashboard is telling me. I've got red text saying "poor" for quality on an Access Point. (see image 1) The help popup says  it is based on noise floor, channel utilization, interference and client association.

 

Looking at the details (image 2) the total clients is 57, which is high but I still have 7 spots available, the other values seem ok I think.

 

Is it just because of the number of clients or is there a real problem?

 


"Poor" is just a way to alert you that something could be wrong.  Maybe that access point always has 53 clients on it every day, but their throughput not be good as a result.  Yes, the item in red tells you how it reached that score..



Colin Joseph
Aruba Customer Engineering

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