Extreme Networks Summit WM3000 Series - Page 504

Troubleshooting Information
Summit WM3000 Series Controller System Reference Guide504
Poor Voice Quality Issues
VOIP MUs, BroadCast MultiCast and SpectraLink phones have poor voice quality issues. The table
below provides suggestions to troubleshoot this issue.
Miscellaneous Issues
This section describes various miscellaneous issues related to the Extreme Networks wireless LAN
controller which don’t fall into any of the previous categories. Possible issues include:
● Excessive Fragmented Data or Excessive Broadcast
● Excessive Memory Leak
Excessive Fragmented Data or Excessive Broadcast
Excessive fragmented data or excessive broadcast.
The table below provides suggestions to troubleshoot this issue.
Excessive Memory Leak
Excessive memory leak. The table below provides suggestions to troubleshoot this issue.
Authentication Problems If the controller is configured to use RADIUS authentication, check the
RADIUS log file for any failure information.
Encryption or
Authentication Problems
If you are using Authentication and/or Encryption on the controller, and
the previous troubleshooting steps have not fixed the problem, try
temporarily disabling Authentication and Encryption to see if that fixes
the problem.
Possible Problem Suggestions to Correct
Traffic congestion with
data traffic
• Maintain voice and data traffic on separate WLANs.
• Use a QoS Classifier to provide dedicated bandwidth if data and
voice traffic are running on the same WLAN.
Long preamble not used
on Spectralink phones
Verify a long preamble is used with Spectralink phones.
Possible Problem Suggestions to Correct
Fragmentation • Do not allow VoIP traffic when operating on a flat network (no routers
or smart controllers).
• Move to a trunked Ethernet port.
• Move to a different configuration.
All else... Contact Extreme Networks Support
Possible Problem Suggestions to Correct