non-preempt-mode

Enables the non-preempt mode on all backups.
Syntax
non-preempt-mode
no non-preempt-mode
Command Default

By default, the non-preempt mode is disabled; preemption is enabled.

Modes

VRID configuration mode

Usage Guidelines

By default, a backup that has a higher priority than another backup that has become the master can preempt the master, and take over the role of master. If you want to prevent this behavior, disable preemption.

Preemption applies only to backups and takes effect only when the master has failed and a backup has assumed ownership of the VRID. The non-preempt-mode command prevents a backup with a higher priority from taking over as master from another backup that has a lower priority but has already become the master of the VRID.

Preemption is especially useful for preventing flapping in situations where there are multiple backups and a backup with a lower priority than another backup has assumed ownership, because the backup with the higher priority was unavailable when ownership changed.

If you enable the non-preempt mode (thus disabling the preemption feature) on all the backups, the backup that becomes the master following the disappearance of the master continues to be the master. The new master is not preempted.

The no form of the command disables the non-preempt mode.

Examples

The following example enables the non-preemption mode. 

device(config)# vlan 200
device(config-vlan-200)# vsrp vrid 1
device(config-vlan-200-vrid-1)# non-preempt-mode
Parent topic: Commands N