device(config)# protocol vrrp-extended
device(config)# interface ve 100
device(config-if-Ve-100)# vrrp-extended-group 1
device(config-vrrp-group-1)# track network 10.1.1.0/24 priority 20
device(config-vrrp-group-1)# end
device# show vrrp detail Total number of VRRP session(s) : 1 VRID 3 Interface: Ve 100; Ifindex: 1207959652 Mode: VRRPE . . . Hold time: 0 sec (default: 0 sec) Master Down interval: 4 sec Trackport: Port(s) Priority Port Status ======= ======== =========== Tracknetwork: Network(s) Priority Status ======= ======== =========== 10.1.1.0/24 20 Down Global Statistics: ================== Checksum Error : 0 Version Error : 0 VRID Invalid : 0 Session Statistics: =================== Advertisements : Rx: 0, Tx: 0 Neighbor Advertisements : Tx: 0 . . .
The following example shows how to configure network 10.1.1.0/24 to be tracked. If the network goes down, the VRRP-E device priority is lowered by a value of 20. The lower priority may trigger a switchover and a backup device with a higher priority becomes the new master for VRRP-E group 1.
device(config)# protocol vrrp-extended device(config)# interface ve 100 device(config-if-Ve-100)# vrrp-extended-group 1 device(config-vrrp-group-1)# track network 10.1.1.0/24 priority 20