F3215-HP Load Balancing Module High Availability Command Reference-6PW101

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Before executing the command, create a VRRP group on an interface and configure the virtual IP address
of the VRRP group.
You might configure different authentication modes and authentication keys for the VRRP groups on an
interface. However, the members of the same VRRP group must use the same authentication mode and
authentication key.
Examples
# Set the authentication mode to simple and authentication key to Sysname for VRRP group 1 on
interface GigabitEthernet 0/1 to send and receive VRRP packets.
<Sysname> system-view
[Sysname] interface gigabitethernet0/1
[Sysname-GigabitEthernet0/1] vrrp vrid 1 virtual-ip 10.1.1.1
[Sysname-GigabitEthernet0/1] vrrp vrid 1 authentication-mode simple Sysname
Related commands
display vrrp
vrrp vrid preempt-mode
Use vrrp vrid preempt-mode to enable preemption on the device and configure its preemption delay in
a specific VRRP group.
Use undo vrrp vrid preempt-mode to disable preemption on the device in a specific VRRP group. As a
result, the device operates in non-preemptive mode.
Use undo vrrp vrid preempt-mode timer delay to restore the default preemption delay.
Syntax
vrrp vrid virtual-router-id preempt-mode [ timer delay delay-value ]
undo vrrp vrid virtual-router-id preempt-mode [ timer delay ]
Default
The device operates in preemptive mode and the preemption delay is zero seconds.
Views
Interface view
Default command 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.
Usage guidelines
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, and 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.