Step 1 Download the new software to both units, and specify the new image to load with the boot system command.

Step 2 Reload the standby unit to boot the new image by entering the following command on the active unit:

active# failover reload-standby

Step 3 When the standby unit has finished reloading, and is in the Standby Ready state, force the active unit to fail over to the standby unit by entering the following command on the active unit.

Note Use the show failover command to verify that the standby unit is in the Standby Ready state.

active# no failover active

Step 4 Reload the former active unit (now the new standby unit) by entering the following command:

newstandby# reload

Step 5 When the new standby unit has finished reloading, and is in the Standby Ready state, return the original active unit to active status by entering the following command:

newstandby# failover active