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High volume of multicast and broadcast traffic cause Access Points to reboot on v9.21.14.0005 code without creating ap.report file

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TitleHigh volume of multicast and broadcast traffic cause Access Points to reboot on v9.21.14.0005 code without creating ap.report file
Symptoms
Large number of multicast/broadcast traffic packets (greater than 100-200 packets per second), with multiple VLANs configured on the Access Points and switch ports, cause Access Points to continually reboot.
Environment
  • ExtremeWireless Appliances
  • ExtremeWireless Access Points
  • firmware 9.21.14.0005 and 10.21.02.0017
Cause
In changing the network from B@EWC Topologies to B@AP Topologies, with a large number of Topologies and VLANs on all switch ports where Access Points are connected, there may be situations where a large number multicast or broadcast packets will cause the Access Points to reboot.
Resolution
Please check on the following items to help reduce the chance of the Access Points rebooting:
  • Push switch port policies onto all ports where Access Points are connected.
  • Block any traffic (IPv6, NetBIOS, MDNS, etc) that does not need to traverse the Access Points.
  • Check Spanning Tree, STP-edge port, and STP-loop protection configurations on all switch ports.
  • If possible, reduce the number of tagged VLANs destined/configured on switch ports with Access Points attached. I.e., if there are VLANs created for users/Topologies that are not needed in certain areas of the network, remove them from the switchport configuration.
  • Place filter rules on the Wireless traffic traversing the Radios, then the ethernet port of the Access Point.
  • Please upgrade the Access Points to 9.21.17.0006, 10.21.04.0005, or 10.31.03 (when available).
Additional notes

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