Configuring the router priority, preemptive mode, and tracking function
The router priority determines which router in the VRRP group acts as the master. The preemptive mode enables a backup to take over as the master when it detects that it has a higher priority than the current master. The tracking function decreases the router priority or enables the backup to take over as the master when the state of the monitored track entry transits to Negative.
Configuration guidelines
The running priority of an IP address owner is always 255, and you do not need to configure it. An IP address owner always operates in preemptive mode.
If you configure the vrrp vrid track priority reduced or vrrp vrid track switchover command on an IP address owner, the configuration does not take effect until the router becomes a non-IP address owner.
Configuration procedure
To configure the router priority, preemptive mode, and tracking function:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter interface view. | interface interface-type interface-number | N/A |
3. Set the priority of the router in the VRRP group. | vrrp vrid virtual-router-id priority priority-value | The default setting is 100. |
4. Enable the preemptive mode for the router in a VRRP group and set the preemption delay time. | vrrp vrid virtual-router-id preempt-mode [ delay delay-value ] | By default, the router in a VRRP group operates in preemptive mode and the preemption delay time is 0 centiseconds, which means an immediate preemption. |
5. Associate a VRRP group with a track entry. | vrrp vrid virtual-router-id track track-entry-number { forwarder-switchover member-ip ip-address | priority reduced [ priority-reduced ] | switchover | weight reduced [ weight-reduced ] } | By default, a VRRP group is not associated with any track entry. |