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Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-25303-03
Chapter 1 Configuring HSRP and VRRP
Configuring HSRP
Use the no standby [group-number] priority priority [preempt [delay delay]] and no standby
[group-number] [priority priority] preempt [delay delay] interface configuration commands to restore
default priority, preempt, and delay values.
Use the no standby [group-number] track type number [interface-priority] interface configuration
command to remove the tracking.
This example activates a port, sets an IP address and a priority of 120 (higher than the default value),
and waits for 300 seconds (5 minutes) before attempting to become the active router:
Switch# configure terminal
Switch(config)# interface gigabitethernet1/0/1
Switch(config-if)# no switchport
Switch(config-if)# standby ip 172.20.128.3
Switch(config-if)# standby priority 120 preempt delay 300
Switch(config-if)# end
Step 4
standby [group-number] preempt
[delay [minimum
seconds] [reload
seconds] [sync seconds]]
Configure the router to preempt, which means that when the local router has
a higher priority than the active router, it becomes the active router.
• (Optional) group-number—The group number to which the command
applies.
• (Optional) delay minimum—Set to cause the local router to postpone
taking over the active role for the number of seconds shown. The range is
0 to 36000 seconds (1 hour); the default is 0 (no delay before taking over).
• (Optional) delay reload—Set to cause the local router to postpone taking
over the active role after a reload for the number of seconds shown. The
range is 0 to 36000 seconds (1 hour); the default is 0 (no delay before
taking over after a reload).
• (Optional) delay sync—Set to cause the local router to postpone taking
over the active role so that IP redundancy clients can reply (either with an
ok or wait reply) for the number of seconds shown. The range is 0 to 36000
seconds (1 hour); the default is 0 (no delay before taking over).
Use the no form of the command to restore the default values.
Step 5
standby [group-number] track
type number [interface-priority]
Configure an interface to track other interfaces so that if one of the other
interfaces goes down, the device’s Hot Standby priority is lowered.
• (Optional) group-number—The group number to which the command
applies.
• type—Enter the interface type (combined with interface number) that is
tracked.
• number—Enter the interface number (combined with interface type) that is
tracked.
• (Optional) interface-priority—Enter the amount by which the hot standby
priority for the router is decremented or incremented when the interface
goes down or comes back up. The default value is 10.
Step 6
end Return to privileged EXEC mode.
Step 7
show running-config Verify the configuration of the standby groups.
Step 8
copy running-config
startup-config
(Optional) Save your entries in the configuration file.
Command Purpose
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