Command Manual – VRRP
Quidway S3900 Series Ethernet Switches-Release 1510 Chapter 1 VRRP Configuration Commands
Huawei Technologies Proprietary
1-7
 Note:
The port to be tracked can be in the VLAN which the backup group VLAN interface
belongs to.
Up to eight ports can be tracked simultaneously.
Example
# Configure that the priority of the switch decreases by 50 if its Ethernet1/0/1 port fails.
<Quidway> system-view
[Quidway] vlan 2
[Quidway-vlan2] port Ethernet1/0/1
[Quidway-vlan2] quit
[Quidway] interface Ethernet1/0/1
[Quidway-Ethernet1/0/1] vrrp vlan-interface 2 vrid 1 track reduced 50
1.1.7 vrrp vrid preempt-mode
Syntax
vrrp vrid virtual-router-id preempt-mode [ timer delay delay-value ]
undo vrrp vrid virtual-router-id preempt-mode
View
VLAN interface view
Parameter
virtual-router-id: VRRP backup group ID ranging from 1 to 255.
delay-value: Delay period (in seconds) ranging from 0 to 255.
Description
Use the vrrp vrid preempt-mode command to configure a switch to operate in the
preemptive mode and set the delay period.
Use the undo vrrp vrid preempt-mode command to cancel the configuration.
By default, switches in a backup group operate in the preemptive mode, with the delay
period set to 0 seconds.
If you want backup switches to preempt the master switch, configure them to operate in
the preemptive mode. You can also set the delay period for preemption as needed.
As long as a switch in the backup group becomes the master switch, other switches,
even if they are configured with a higher priority later, do not preempt the master switch
unless they operate in preemptive mode. The switch operating in preemptive mode will
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