Command Line Interface
10051553-KDU 137 365 Uen D 2006-06-16
Command Mode
Interface (VLAN)
Command Usage
• VRRP advertisements from the current master virtual router include
information about its priority and current state as the master.
• VRRP advertisements are sent to the multicast address 224.0.0.8.
Using a multicast address reduces the amount of traffic that has to
processed by network devices that are not part of the designated VRRP
group.
• If the master router stops sending advertisements, backup routers will
bid to become the master router based on priority. The dead interval
before attempting to take over as the master is three times the hello
interval plus half a second
Example
7.24.6 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)
• seconds - The time to wait before issuing a claim to become the
master. (Range: 0-120 seconds)
Console(config-if)#vrrp 1 timers advertise 5
Console(config-if)#
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