Network Management

Reply
Occasional Contributor II
Posts: 13
Registered: ‎07-12-2011

Correctly interpreting AirWave RF Health Report

I am looking to make sure my wireless network is configured for VOIP Quality. In looking at the Daily RF Health Report I show an avg  Noise range of -82 to -91.50 dbm. When I look at VisualRF heatmap and set it for signal cutoff -65 (this number is recommended for VOIP quality). Based on these noise/signal I should have a SNR of 17 to 25.50 (25 being idea) with the 17 being the worst signal, is this a correct interpretation? Meaning I need to look at any AP's that are reporting a Avg Noise of less than -88/-86? 

Guru Elite
Posts: 21,512
Registered: ‎03-29-2007

Correctly interpreting AirWave RF Health Report

[ Edited ]

The Health Report reports on Noise, not signal, so it should not be used to determine coverage.

 



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Moderator
Posts: 1,270
Registered: ‎10-16-2008

Re: Correctly interpreting AirWave RF Health Report

Noise varies based on the number of APs and clients that are active in an area.  The number of active clients changes daily.  Your gauging factor should be based on site survey with trending over a period of time.


Rob Gin
Senior QA Engineer - Network Services
Aruba Networks, a Hewlett Packard Enterprise Company
Guru Elite
Posts: 21,512
Registered: ‎03-29-2007

Re: Correctly interpreting AirWave RF Health Report

What he said ^^^^



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Occasional Contributor II
Posts: 13
Registered: ‎07-12-2011

Re: Correctly interpreting AirWave RF Health Report

I am not using the Noise as the sole critrior to get my signal but as a number to arrive at SNR. Did I incorrectly state my question? I am trying to gage what my clinets are seeing and I understand this changes as the RF signals change

Occasional Contributor II
Posts: 13
Registered: ‎07-12-2011

Re: Correctly interpreting AirWave RF Health Report

Sorry I just noticed I posted this question in the wrong Area it should have went into the AirWave discussion :). Thanks for answering

Moderator
Posts: 1,270
Registered: ‎10-16-2008

Re: Correctly interpreting AirWave RF Health Report

I think you're on the right track, but I think capturing a trending pattern needs to happen first.  And then if an area is observed to have the same high noise level consistently, then look into placing another AP near that area, or rearranging the currently deployed APs to cover that area better.  Some customer locations where -88 dbm is the average noise have had VOIP working perfectly over the wireless.  It's something that you'll want to test and observe prior to making it your magic number.


Rob Gin
Senior QA Engineer - Network Services
Aruba Networks, a Hewlett Packard Enterprise Company
Search Airheads
Showing results for 
Search instead for 
Did you mean: