`preempt`

Syntax

preempt

no preempt

Description

Enables the preempt option. The default value is enabled. In default mode, a backup router with a higher priority than another backup that is operating as master will take over the master function.

Applies to VRRP backup routers only and is used to minimize network disruption caused by unnecessary preemption of the master operation among backup routers.

The no form of this command disables the preempt option, thus preventing the higher-priority backup from taking over the master operation from a lower-priority backup. This command does not prevent an owner router from resuming the master function after recovering from being unavailable.

Command context

config

Authority

Administrators

Examples

switch# configure terminal
switch(config)# interface 1/1/1
switch(config-if)# vrrp 1 address-family ipv4
switch(config-if-vrrp)# preempt

switch# configure terminal
switch(config)# interface 1/1/1
switch(config-if)# vrrp 1 address-family ipv4
switch(config-if-vrrp)# no preempt