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So many APs in out of service email alarms, ExtremeWireless Access Points polling out.

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TitleSo many APs in out of service email alarms, ExtremeWireless Access Points polling out.
Symptoms
  • APs are polling out regularly.
  • SNMP logs reporting APs down, then up, within seconds.
Environment
  • ExtremeWireless appliance C5210
  • ExtremeWireless Access Points.
  • Firmware 10.31.10.
Cause
This may have the same root cause as the controllers rebooting due to an overflow of ARP packet handling. If the appliance is dropping information for MACs, the APs may be getting dropped as well, until they move to another appliance.
Resolution
Improved ARP packet processing in networks with large numbers of end device connections.
Please upgrade to:
  • 10.41.13 or higher
  • 10.51.01
Additional notes

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