Configuring Redundancy Using Hsrp - Cisco Catalyst 5000 Series Installation And Configuration Note

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This example shows how to enable AppleTalk routing on the RSFC, create a VLAN interface, and
assign the interface an AppleTalk cable-range and zone name:
Router#configure terminal
Enter configuration commands, one per line.
Router(config)#appletalk routing
Router(config)#interface vlan100
Router(config-if)#appletalk cable-range 100-100
Router(config-if)#appletalk zone Engineering
Router(config-if)#no shutdown
Router(config-if)#^Z
Router#
Configuring Redundancy Using HSRP
You can configure one or more HSRP groups on RSFC VLAN interfaces to provide transparent
routing backup for the network. Each VLAN interface in an HSRP group shares a virtual IP address
and MAC address. You can configure end stations and other devices to use the HSRP address as the
default gateway so that the failure of one router interface does not interrupt service to those devices.
The interface with the highest HSRP priority is the active interface for that HSRP group.
To configure HSRP on an RSFC VLAN interface, perform this task in interface configuration mode:
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Step 1
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Assign a cable range to the VLAN interface.
Assign a zone name to the VLAN interface.
Bring up the interface, if necessary.
Exit configuration mode.
This step is necessary if you have multiple routers in the network.
Enable HSRP and specify the HSRP IP address.
If you do not specify a group-number, group 0 is
used.
Specify the priority for the HSRP interface.
Increase the priority of at least one interface in
the HSRP group (the default is 100). The
interface with the highest priority becomes
active for that HSRP group.
(Optional) Configure the interface to preempt
the current active HSRP interface and become
active if the interface priority is higher than the
priority of the current active interface.
(Optional) Set the HSRP Hello timer and
holdtime timer for the interface. The default
values are 3 (Hello) and 10 (holdtime). All
interfaces in the HSRP group should use the
same timer values.
(Optional) Specify a clear-text HSRP
authentication string for the interface. All
interfaces in the HSRP group should use the
same authentication string.
Catalyst 5000 Series Route Switch Feature Card Installation and Configuration Note
Configuring Redundancy Using HSRP
Command
Router(config-if)#appletalk cable-range cable-range
Router(config-if)#appletalk zone zone-name
Router(config-if)#no shutdown
Router(config-if)#Ctrl-Z
End with CNTL/Z.
Command
standby [group-number] ip [ip-address]
standby [group-number] priority priority
standby [group-number] preempt [delay delay]
standby [group-number] timers hellotime holdtime
standby [group-number] authentication string
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