WS5x00 Fails Over to Standby without Any Reason

Article ID: 41647786

Question

Why does the WS5x00 fail to the Standby if the Primary is still connected and operational?

Facts

Applies to WS5x00 running firmware v1.x and v2.x only If more than one primary-secondary wireless switch pair exists do not use Auto Discovery. Instead, indicate the Interface 1 and Interface 2 MAC addresses of the primary switch’s corresponding standby switch. Conversely, you would do the same for the Standby switch, by indicating the Interface 1 and Interface 2 MAC addresses of its corresponding primary switch. This should be done for each wireless switch pair. By default, the discovery settings are set to Auto Discovery. This will work fine if you only have 1 primary – standby wireless switch pair. Auto Discovery cannot be used in situations where more than one primary – standby wireless switch pair exists.

Answer

The standby WS5000 takes over from the primary WS5000.  The reason the standby WS5000 reports for taking over is “lost heartbeat to primary”

The primary WS5000 is still up and running and the Layer2 connectivity between the switches is fine. It appears as if the standby takes over without any reason.
  1. Under Standby Management choose Primary.
  2. Key in the Interface 1 MAC address of the Primary switch’s Standby switch.
  3. Uncheck Auto Discovery (under Interface 1).
  4. Key in the Interface 2 MAC address of the Primary switch’s Standby switch.
  5. Uncheck Auto Discovery (under Interface 2).
  6. Click Apply.
  7. Click Close.
  8. Under Standby Management choose Standby.
  9. Key in the Interface 1 MAC address of the Standby switch’s Primary switch.
  10. Uncheck Auto Discovery (under Interface 1)
  11. Key in the Interface 2 MAC address of the Standby switch’s Primary switch.
  12. Uncheck Auto Discovery (under Interface 2).
  13. Click Apply.
  14. Click Close.
  15. Repeat steps 1-14 for each wireless switch pair on the network.