15.2.10 Grouping virtual routers

A maximum of 1023 virtual routers can be used by grouping multiple virtual routers. This section provides examples of setting the following group configurations:

Figure 15-16: Example of configuring a group for a virtual router

Role of a virtual router	Interface on which the virtual router is configured	Virtual router ID	Virtual router name	Name of the primary virtual router to follow
Primary virtual router	VLAN 10	1	VRRPNAME	-
Follower virtual router	VLAN 20	1	-	VRRPNAME

Legend:-: Not applicable

<Structure of this section>

(1) Configuring the Primary Virtual Router

Points to note: The state of the primary virtual router determines the state of all virtual routers in the group. After configuring the settings, verify that the primary virtual router is operating properly.

Command examples

(config)# interface vlan 10

(config-if)# ip address 192.168.10.1 255.255.255.0

Switches to the VLAN interface configuration mode for VLAN 10. If IP address is not set for VLAN interface, set IP address here.
(config-if)# vrrp 1 ip 192.168.10.100

Sets 192.168.10.100 as the virtual IP for the virtual router on VLAN 10, virtual router ID 1.
(config-if)# vrrp 1 name VRRPNAME

Sets the virtual router name VRRPNAME for the virtual router in VLAN 10, virtual router ID 1.

(2) Configuring Follow Virtual Routers

Points to note

Specifies the primary virtual router name from the virtual router. A virtual router that specifies a primary virtual router becomes a follower virtual router and follows the specified primary virtual router status.

We recommend that you configure a follower virtual router with the same virtual router ID as the primary virtual router.

Command examples

(config)# interface vlan 20

(config-if)# ip address 192.168.20.1 255.255.255.0

Switches to VLAN interface configuration mode for VLAN 20. If IP address is not set for VLAN interface, set IP address here.
(config-if)# vrrp 1 follow VRRPNAME

Specifies VRRPNAME for the name of the primary virtual router that the follower virtual router in VLAN 20, virtual router ID 1 follows.
(config-if)# vrrp 1 ip 192.168.20.100

Sets 192.168.20.100 as the virtual IP for the virtual router on VLAN 20, virtual router ID 1.

Notes

When configuring a follower virtual router, initiate the configuration from vrrp follow commandPlease do.
If the specified primary virtual router does not exist, the follower virtual router enters the initial state.