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Catalyst 3550 Multilayer Switch Software Configuration Guide
78-11194-09
Chapter 32 Configuring HSRP
Configuring HSRP
This example shows how to configure word as the authentication string required to allow Hot Standby
routers in group 1 to interoperate:
Switch# configure terminal
Switch(config)# interface gigabitethernet0/1
Switch(config-if)# standby 1 authentication word
Switch(config-if)# end
Switch#
This example shows how to set the timers on standby group 1 with the time between hello packets at 5
seconds and the time after which a router is considered down to be 15 seconds:
Switch# configure terminal
Switch(config)# interface gigabitethernet0/1
Switch(config-if)# standby 1 ip
Switch(config-if)# standby 1 timers 5 15
Switch(config-if)# end
Switch#
Configuring HSRP Groups and Clustering
When a device is participating in an HSRP standby routing and clustering is enabled, you can use the
same standby group for command switch redundancy and HSRP redundancy. Use the cluster
standby-group HSRP-group-name [routing-redundancy] global configuration command to enable the
same HSRP standby group to be used for command switch and routing redundancy. If you create a
cluster with the same HSRP standby group name without entering the routing-redundancy keyword,
HSRP standby routing is disabled for the group.
This example shows how to bind standby group my_hsrp to the cluster and enable the same HSRP group
to be used for command switch redundancy and router redundancy. The command can only be executed
on the command switch. If the standby group name or number does not exist, or if the switch is a member
switch, an error message appears.
Switch# configure terminal
Switch(config)# cluster standby-group my_hsrp routing-redundancy
Switch(config)# end
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