Associating a VRRP6 Group with a VRRP6-disabled Interface

This section describes how to associate a VRRP6 group with a VRRP6-disabled interface on the master device. If the master device detects that the status of the VRRP6-disabled interface changed, it rapidly performs a master/backup VRRP6 switchover.

Context

A VRRP6 group cannot detect changes in the status of a VRRP6-disabled interface. If a VRRP6-disabled interface connected to a network fails, the VRRP6 group cannot detect the fault and still forwards user packets through the failed interface, which results in service interruptions.

To resolve this issue, configure the VRRP6 group to track the VRRP6-disabled interface. If the interface goes Down, the VRRP6 group detects the fault and reduces the master device's priority to trigger a rapid master/backup VRRP6 switchover.

Perform the following steps on each device in a VRRP6 group:

Procedure

Run system-view
The system view is displayed.
Run interface interface-type interface-number
The view of the interface on which the VRRP6 group is configured is displayed.
Run vrrp6 vrid virtual-router-id track interface { interface-name | interface-type interface-number } [ increased value-increased | reduced value-decreased ]
The VRRP6 group is configured to track a VRRP6-disabled interface.
- increased value-increased specifies the value by which the VRRP6 priority increases if a VRRP6-disabled interface tracked by a VRRP6 group goes Down. The value ranges from 1 to 255. The value 255 is reserved for an IP address owner, and therefore the largest value can be set to 254.
- reduced value-decreased specifies the value by which the VRRP6 priority reduces if a VRRP6-disabled interface tracked by a VRRP6 group goes Down. The value ranges from 1 to 255. The smallest value can be set to 1.
- After you enable a VRRP6 group to track a VRRP6-disabled interface, an IP address owner's priority does not change because it is fixed at 255.
- You can enable a VRRP6 group to track a VRRP6-disabled interface only when the network-layer protocol of the tracked interface is IPv4.
Run commit
The configuration is committed.