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Occasional Contributor II
Posts: 66
Registered: ‎08-09-2012

Large Number of FCS Errors in Airwave 7.7.5

I have a question about FCS Errors. I have Airwave 7.7.5 installed and monitoring our wireless controllers, RAPs and IAPS.

 

When I check the Raido Statistics in Airwave for various APs, I see a large number of entries in the FCS Errors. Do I need to modify the port settings on the AP to reduce FCS Errors or is this a normal occurrence?  

 

How do the errors impact Lync Voice Quality?

 

802.11 Radio Counters Summary (frames/sec)

 
  Current Last Hour Last Day Last Week
Unacked65717068
Retries22910
Failures07207
Dup Frames0000
FCS Errors238238195143

 

 

Anthony
Guru Elite
Posts: 20,561
Registered: ‎03-29-2007

Re: Large Number of FCS Errors in Airwave 7.7.5

What matters is WHEN those errors occurred.  A certain number of errors is reasonable for each environment and LYNC can certainly operate WITH those errors just fine.  You should get worried when you have problems.  If you have AMON http://community.arubanetworks.com/t5/Community-Tribal-Knowledge-Base/Why-you-should-always-enable-AMON-on-your-Aruba-Controller-when/ta-p/72104 turned on, you can look at each access point's radio and see how many errors at each time of day to get an idea what is the baseline for your environment.



Colin Joseph
Aruba Customer Engineering

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Occasional Contributor II
Posts: 66
Registered: ‎08-09-2012

Re: Large Number of FCS Errors in Airwave 7.7.5

Thanks for the quick response. I'm not certain when the errors occurred. I'll clear the counters on the AP and monitor.

 

I pulled radio statistics from another AP. The FCS Errors are much lower than previous AP. So, it appears to be AP specific. 

 

802.11 Radio Counters Summary (frames/sec)

 
  Current Last Hour Last Day Last Week
Unacked667822387
Retries58706240
Failures12247
Dup Frames01071
FCS Errors36100137104
Anthony
New Contributor
Posts: 2
Registered: ‎12-07-2012

Re: Large Number of FCS Errors in Airwave 7.7.5

Hello, I need to reset my FCS counters in AMP could you please tell me how you did this?

 

Mike

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