R3721-F3210-F3171-HP High-End Firewalls High Availability Command Reference-6PW101

10
[Sysname] interface GigabitEthernet 0/1
[Sysname-GigabitEthernet0/1] vrrp vrid 1 virtual-ip 10.1.1.1
[Sysname-GigabitEthernet0/1] vrrp vrid 1 authentication-mode simple Sysname
vrrp vrid preempt-mode
Syntax
vrrp vrid virtual-router-id preempt-mode [ timer delay delay-value ]
undo vrrp vrid virtual-router-id preempt-mode [ timer delay ]
View
Interface view
Default level
2: System level
Parameters
virtual-router-id: Virtual router ID or VRRP group number, which ranges from 1 to 255.
timer delay delay-value: Sets preemption delay. The delay-value argument ranges from 0 to 255 seconds
and defaults to 0 seconds.
Description
Use vrrp vrid preempt-mode to enable preemption on the router and configure its preemption delay in
a specific VRRP group.
Use undo vrrp vrid preempt-mode to disable preemption on the router in a specific VRRP group. As a
result, the router operates in non-preemptive mode.
Use undo vrrp vrid preempt-mode timer delay to restore the default preemption delay.
The router operates in preemption mode and the preemption delay is zero seconds.
To avoid frequent member state changes in a VRRP group and make the backups have enough time to
collect information (such as routing information), each backup waits for a period of time (the preemption
delay time) after it receives an advertisement with the priority lower than the local priority, then sends
VRRP advertisements to start a new master election in the VRRP group and becomes the master.
Before executing the command, create a VRRP group on an interface and configure the virtual IP address
of the VRRP group.
Related commands: display vrrp.
Examples
# Enable preemption on the router in VRRP group 1, and set the preemption delay to five seconds.
<Sysname> system-view
[Sysname] interface GigabitEthernet 0/1
[Sysname-GigabitEthernet0/1] vrrp vrid 1 virtual-ip 10.1.1.1
[Sysname-GigabitEthernet0/1] vrrp vrid 1 preempt-mode timer delay 5
vrrp vrid priority
Syntax
vrrp vrid virtual-router-id priority priority-value