Cisco ACE-4710-1F-K9 User Guide - Page 16

Upgrading Your ACE Software in a Redundant Configuration After ACE-2 boots up, it may take a few minutes to reach the STANDBY_WARM state again. Configuration synchronization is still enabled and the connections through ACE-1 are still being replicated to ACE-2. Note We do not recommend that you make any changes to the ACE-1 configuration. At this point in the upgrade procedure with ACE-2 in the STANDBY_WARM state, any incremental commands that you add to the ACE-1 configuration may not be properly synchronized to the ACE-2 configuration. To make any changes to ACE-1, disable incremental sync on ACE-1 and manually synchronize the changes to ACE-2. Step 11 Step 12 After the standby ACE reboots, log in and perform the following actions to verify the state of the standby ACE: • Enter the show version command in Exec mode to verify that the ACE has properly rebooted with the latest ACE appliance software image. • Enter the show ft group detail command in Exec mode to verify that the standby ACE has recovered to a STANDBY_HOT state. If the standby ACE is running software version A3(2.2) or later, the state is STANDBY_WARM. Perform a graceful failover of all contexts from ACE-1 to ACE-2 by entering the ft switchover all command in Exec mode on ACE-1. ACE-2 becomes the new active ACE and assumes control of all active connections with no interruption to existing connections. ACE-1/Admin# ft switchover all Step 13 Upgrade ACE-1 by reloading it. Verify that ACE-1 enters the STANDBY_WARM state (this action may take several minutes) by entering the show ft group detail command in Exec mode. Because the standby ACE has changed its state to either STANDBY_COLD or STANDBY_HOT, the configuration mode is enabled. The configuration is synchronized from ACE 2 (currently active) to ACE-1. If ACE-1 is configured with a higher priority and preempt is configured on the FT group, ACE-1 reasserts control after it has received all configuration and state information from ACE-2, making ACE-2 the new standby. ACE-1 becomes the active ACE again. ACE-1/Admin# reload This command will reboot the system Save configurations for all the contexts. Save? [yes/no]: [yes] Step 14 Verify that ACE-1 is in the ACTIVE state and ACE-2 is in the STANDBY_WARM state by entering the show ft group detail command in Exec mode. Upgrade/Downgrade Guide, Cisco ACE 4700 Series Application Control Engine Appliance 16 OL-25719-01