Chapter 28
| VRRP Commands
– 794 –
Example
This example creates VRRP group 1 using the primary interface for VLAN 1 as the
VRRP group Owner.
Console(config)#interface vlan 1
Console(config-if)#vrrp 1 ip 192.168.1.6
Console(config-if)#
vrrp preempt This command configures the router to take over as the master virtual router for a
VRRP group if it has a higher priority than the current acting master router. Use the
no form to disable preemption.
Syntax
vrrp group preempt [delay seconds]
no vrrp group preempt
group - Identifies the VRRP group. (Range: 1-255)
The maximum number or groups which can be defined is 64.
seconds - The time to wait before issuing a claim to become the master.
(Range: 0-120 seconds)
Default Setting
Preempt: Enabled
Delay: 0 seconds
Command Mode
Interface (VLAN)
Command Usage
â—† If preempt is enabled, and this backup router has a priority higher than the
current acting master, it will take over as the new master. However, note that if
the original master (i.e., the owner of the VRRP IP address) comes back on line, it
will always resume control as the master.
â—† The delay can give additional time to receive an advertisement message from
the current master before taking control. If the router attempting to become
the master has just come on line, this delay also gives it time to gather
information for its routing table before actually preempting the currently active
router.
Example
Console(config-if)#vrrp 1 preempt delay 10
Console(config-if)#
Related Commands
vrrp priority (795)
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