Cisco 7604 Configuration Guide - Page 281
changeto context, failover group
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Chapter 14 Configuring Failover Configuring Failover Note In multiple context mode, you must configure the interface addresses from within each context. Use the changeto context command to switch between contexts. The command prompt changes to hostname/context(config-if)#, where context is the name of the current context. Step 2 Step 3 Configure the basic failover parameters in the system execution space. a. Designate the unit as the primary unit: hostname(config)# failover lan unit primary b. Specify the failover link: hostname(config)# failover lan interface if_name vlan vlan The if_name argument assigns a logical name to the interface specified by the vlan argument. This interface should not be used for any other purpose (except, optionally, the state link). c. Specify the failover link active and standby IP addresses: 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 IP address subnet mask. The failover link IP address does not change at failover. The active IP address always stays with the primary unit, while the standby IP address stays with the secondary unit. (Optional) To enable Stateful Failover, configure the state link. The state link must be configured on an unused interface. a. Specify the interface to be used as the state link: hostname(config)# failover link if_name [vlan vlan] The if_name argument assigns a logical name to the interface specified by the vlan argument. This interface should not be used for any other purpose (except, optionally, the failover link). Note If the state link uses the failover link, then you only need to supply the if_name argument. b. Assign an active and standby IP address to the state link. Note If the state link uses the failover link, skip this step. You have already defined the failover link active and standby IP addresses. Step 4 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 does not change at failover. The active IP address always stays with the primary unit, while the standby IP address stays with the secondary unit. Configure the failover groups. You can have at most two failover groups. The failover group command creates the specified failover group if it does not exist and enters the failover group configuration mode. OL-20748-01 Catalyst 6500 Series Switch and Cisco 7600 Series Router Firewall Services Module Configuration Guide using ASDM 14-27
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