• Connecting stacking cables on page 101
• Powering on the unit on page 101
• Returning the unit for repair on page 102
Removing a failed unit
About this task
Remove the failed unit from the stack.
Procedure
1. Maintain power to the stack. Do not power down the stack.
2. Remove the failed device.
Confirming AUR is enabled
About this task
Confirm AUR is enabled in the stack.
Procedure
1. Enter the show stack auto-unit-replacement command to show AUR
configuration.
2. Enter the stack auto-unit-replacement config save enable command
to enable AUR.
3. Enter the stack auto unit replacement auto-restore enable
command to configure AUR to automatically restore the configuration to the new
unit.
Removing a MAC address from the AUR cache
About this task
Remove the MAC address for a non-operational stack switch from the AUR address cache.
Replace a unit in the stack
Troubleshooting Avaya ERS 4000 Series April 2014 99