130• The running priority of an IP address owner is always 255 and you do not need to configure it. An IPaddress owner always works in the preemptive mode.• Interface tracking is not configurable on an IP address owner.• The tracked interface can be a VLAN interface only.• If the state of the interface under tracking changes from down to up, the priority of the switchcorresponding to the interface is restored automatically.• If the state of a track entry changes from negative to positive or invalid, the priority of the routercorresponding to the track entry is restored automatically.Configuring VF trackingConfiguration prerequisitesBefore configuring the VF tracking function, create a VRRP group and configure a virtual IPv6address for it.Configuration procedureIf VRRP is in load balancing mode, and VF is configured to monitor the track entry, then when thestate of the track entry becomes negative, the weight values of all VFs on the routers decrease bya specified value. When the state of the track entry becomes positive or invalid, the weight valuesof all VFs on the routers return to their original values.To configure VF tracking:To do… Use the command… Remarks1. Enter system view system-view —2. Enter the specified interfaceviewinterface interface-type interface-number —3. Configure the VF to monitor aspecified track entryvrrp ipv6 vrid virtual-router-idweight track track-entry-number [reduced weight-reduced ]RequiredNo track entry is specified bydefault.• You can configure the VF tracking function when VRRP works in either the standard protocol mode orload balancing mode. H owever, the VF tracking function is effective only when VRRP works in loadbalancing mode.• Do not configure VF tracking on an IP address owner.• By default, the weight of a VF is 255, and its lower limit of failure is 10.• If the weight of a VF owner is higher than or equal to the lower limit of failure, the priority of the VFowner is always 255 and does not change with the weight value. Therefore, in case of an uplink failure,
