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Cisco ASA Series CLI Configuration Guide
Chapter 1 Configuring Active/Active Failover
Controlling Failover
hostname# failover active group group_id
Or, enter the following command in the system execution space of the unit where the failover group is
in the active state:
hostname# no failover active group group_id
Entering the following command in the system execution space causes all failover groups to become
active:
hostname# failover active
Disabling Failover
Disabling failover on an Active/Active failover pair causes the failover groups to remain in the active
state on whichever unit they are active, no matter which unit they are configured to prefer. Enter the no
failover command in the system execution space.
To disable failover, enter the following command:
hostname(config)# no failover
Restoring a Failed Unit or Failover Group
Restoring a failed unit or failover group moves the unit or failover group from the failed state to the
standby state; it does not automatically make the failover group or unit active. Restored units or groups
remain in the standby state until made active by failover (forced or natural). An exception is a failover
group configured with failover preemption. If previously active, a failover group becomes active if it is
configured with preemption and if the unit on which it failed is the preferred unit.
To restore a failed unit to an unfailed state, enter the following command:
hostname(config)# failover reset
To restore a failed Active/Active failover group to an unfailed state, enter the following command:
hostname(config)# failover reset group group_id
Testing the Failover Functionality
To test failover functionality, perform the following steps:
Step 1 Test that your active unit or failover group is passing traffic as expected by using FTP (for example) to
send a file between hosts on different interfaces.
Step 2 Force a failover to the standby unit by entering the following command on the unit where the failover
group containing the interface connecting your hosts is active:
hostname(config)# no failover active group group_id
Step 3 Use FTP to send another file between the same two hosts.
Step 4 If the test was not successful, enter the show failover command to check the failover status.
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