Command Reference Guide

18 ● vrrp vrid preempt-mode 3Com Router 5000 Family and Router 6000 Family
Command Reference
vrrp vrid preempt-mode
Purpose Use the vrrp vrid preempt-mode command to enable preemption on the router
and configure its preemption delay in the specified standby group.
Use the undo vrrp vrid preempt-mode command to disable preemption on
the router in the specified standby group.
Syntax vrrp vrid virtual-router-ID preempt-mode [ timer delay delay-value ]
undo vrrp vrid virtual-router-ID preempt-mode
Parameters virtual-router-ID
Virtual router ID or VRRP standby group number. Valid
values are 1 to 255.
delay-value
Delay time value. Valid values are 0 to 255 seconds.
If not specified, the default is 0 seconds.
Default The default mode is preemption without delay.
Example Enable preemption on the router in standby group 1.
[3Com -Ethernet0/2/0] vrrp vrid 1 preempt-mode
Set the preemption delay to five seconds.
[3Com -Ethernet0/2/0] vrrp vrid 1 preempt-mode timer delay 5
Disable preemption on the router in standby group 1.
[3Com -Ethernet0/2/0] undo vrrp vrid 1 preempt-mode
View This command can be used in the following views:
■ Interface view
■ bridge Template view
Description To allow a backup router in a standby group to preempt the current master when it
has a higher priority, you must enable preemption on it. If immediate preemption is
not desired, you can set a preemption delay. The delay automatically changes to 0
seconds when preemption is disabled.