Cisco FirePOWER ASA 5500 series Configuration Manual page 232

Configuring Failover
c.
Configure the failover groups. You can have at most two failover groups. The failover group command
Step 4
creates the specified failover group if it does not exist and enters the failover group configuration mode.
For each failover group, specify whether the failover group has primary or secondary preference using
the primary or secondary command. You can assign the same preference to both failover groups. For
load balancing configurations, you should assign each failover group a different unit preference.
The following example assigns failover group 1 a primary preference and failover group 2 a secondary
preference:
hostname(config)# failover group 1
hostname(config-fover-group)# primary
hostname(config-fover-group)# exit
hostname(config)# failover group 2
hostname(config-fover-group)# secondary
hostname(config-fover-group)# exit
Assign each user context to a failover group using the join-failover-group command in context
Step 5
configuration mode.
Any unassigned contexts are automatically assigned to failover group 1. The admin context is always a
member of failover group 1.
Enter the following commands to assign each context to a failover group:
hostname(config)# context context_name
hostname(config-context)# join-failover-group {1 | 2}
hostname(config-context)# exit
Step 6 Enable failover:
hostname(config)# failover
Configure the Secondary Unit
When configuring LAN-based Active/Active failover, you need to bootstrap the secondary unit to
recognize the failover link. This allows the secondary unit to communicate with and receive the running
configuration from the primary unit.
To bootstrap the secondary unit in an Active/Active failover configuration, perform the following steps:
Step 1 (PIX security appliance only) Enable LAN-based failover:
Cisco Security Appliance Command Line Configuration Guide
14-30
hostname(config)# failover interface ip if_name ip_addr mask standby ip_addr
The standby IP address must be in the same subnet as the active IP address. You do not need to
identify the standby address subnet mask.
The state link IP address and MAC address do not change at failover. The active IP address always
stays with the primary unit, while the standby IP address stays with the secondary unit.
Enable the interface.
If the Stateful Failover link uses the failover link or regular data interface, skip this step. You
Note
have already enabled the interface.
hostname(config)# interface phy_if
hostname(config-if)# no shutdown
Chapter 14 Configuring Failover
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