192
(QCT) (if-vlan10)#ip vrrp 10 track ip route 192.168.200.0/24
(QCT) (if-vlan10)#exit
Router B is the backup router for VRID 10. The configured priority is 195. If the VLAN 25 routing interface or
route to the external network on Router A go down, the priority of Router A will become 190 (or 180, if both
the interface and router are down). Because the configured priority of Router B is greater than the actual
priority of Router A, Router B will become the master for VRID 10. When VLAN 25 and the route to the
external network are back up, the priority of Router A returns to 200, and it resumes its role as VRRP master.
To configure Router B:
1. Enable routing for the switch.
(QCT) #config
(QCT) (Config)#ip routing
(QCT) (Config)#exit
2. Create and configure the VLAN routing interface to use as the default gateway for network clients. This
example assumes all other routing interfaces, such as the interface to the external network, have been
configured.
(QCT) (Config)#interface vlan 10
(QCT) (if-vlan10)#ip address 192.168.10.2 255.255.255.0
(QCT) (if-vlan10)#exit
3. Enable VRRP for the switch.
(QCT) (Config)#ip vrrp
4. Assign a virtual router ID to the VLAN routing interface for the VRRP group.
(QCT) (Config)#interface vlan 10
(QCT) (if-vlan10)#ip vrrp 10
5. Specify the IP address that the virtual router function will use.
(QCT) (if-vlan10)#ip vrrp 10 ip 192.168.10.15
6. Configure the router priority.
(QCT) (if-vlan10)#ip vrrp 10 priority 195
7. Enable preempt mode so that the router can regain its position as VRRP master if its priority is greater
than the priority of the backup router.
(QCT) (if-vlan10)#ip vrrp 10 preempt
8. Enable the VRRP groups on the interface.
(QCT) (if-vlan10)#ip vrrp 10 mode
(QCT) (if-vlan10)#exit
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