Reference Guide

Supported
Releases
10.2.0E or later
preempt
Permits (preempts) a backup router with a higher priority value to become the master router.
Syntax
preempt
Parameters None
Default Enabled
Command Mode INTERFACE-VRRP
Usage
Information
VRRP uses preempt to determine what happens after a VRRP backup router becomes the Master. With
preempt enabled by default, VRRP switches to a backup if that backup router comes online with a priority
higher than the new Master router. If you disable preempt, VRRP switches only if the original Master
recovers or the new Master fails. The no version of this command disables preemption.
Example
OS10(conf-eth1/1/5-vrid-254)# preempt
Supported
Releases
10.2.0E or later
priority
Assigns a VRRP priority value for the VRRP group. The VRRP uses this value during the master election process.
Syntax
priority number
Parameters number — Enter a priority value (1 to 254).
Default 100
Command Mode INTERFACE-VRRP
Usage
Information
To guarantee that a VRRP group becomes master, configure the VRRP group’s virtual address with same
IP address as the interface’s primary IP address, and change the priority of the VRRP group to 255. If you
set this command to 255 and the virtual-address is not equal to the interface’s primary IP address,
the system displays an error message. The no version of this command resets the value to the default
(100).
Example
OS10(conf-eth1/1/5-vrid-254)# priority 200
Supported
Releases
10.2.0E or later
show vrrp
Displays VRRP group information.
Syntax
show vrrp {brief | vrrp-id | ipv6 group-id}
Parameters
● brief — Displays the configuration information for all VRRP instances in the system.
● vrrp-id — Enter a VRRP group ID number to view the VRRP IPv4 group operational status
information (1 to 255).
● ipv6 group-id — (Optional) Enter a VRRP group ID number to view the specific IPv6 group
operational status information (1 to 255).
Default All IPv4 VRRP group configuration
Command Mode EXEC
454 Layer 3