2245[Sysname-Ethernet1/0] vrrp ipv6 vrid 1 virtual-ip fe80::2 link-local[Sysname-Ethernet1/0] vrrp ipv6 vrid 1 timer advertise 500vrrp ipv6 vrid trackSyntax vrrp ipv6 vrid virtual-router-id track interface interface-type interface-number[ reduced priority-reduced ]undo vrrp ipv6 vrid virtual-router-id track [ interface interface-typeinterface-number ]View Interface viewParameter virtual-router-id: VRRP standby group number, in the range 1 to 255.interface interface-type interface-number: Specifies an interface by its type andnumber.reduced priority-reduced: Specifies the value by which the priority decrements.priority-reduced ranges from 1 to 255 and defaults to 10.Description Use the vrrp ipv6 vrid track command to configure to track the specifiedinterface.Use the undo vrrp ipv6 vrid track command to disable tracking the specifiedinterface.By default, no interface is being tracked.Note that:■ Before executing the command, create a standby group on an interface andconfigure the virtual IPv6 address of the standby group.■ When the router is the owner of the IP address, you cannot perform theconfiguration.■ When the status of the tracked interface turns from down to up, thecorresponding router restores its priority automatically.■ The interface specified in this command can be a Layer 3 Ethernet interface, aVLAN interface, or a synchronous/asynchronous serial interface. At present, thelayer 2 protocol used by the tracked synchronous/asynchronous serialinterfaces can only be PPP protocol.Example # On interface Ethernet 1/0, set the interface to be tracked as Serial 2/0, makingthe priority of standby group 1 on interface Ethernet 1/0 decrement by 50 whenSerial 2/0 goes down. system-view[Sysname] interface ethernet 1/0[Sysname-Ethernet1/0] vrrp ipv6 vrid 1 virtual-ip fe80::2 link-local[Sysname-Ethernet1/0] vrrp ipv6 vrid 1 track interface serial 2/0 reduced 50