In load sharing mode, multiple routers provide services simultaneously. This mode requires two or more
VRRP groups, each of which comprises a master and one or more backups. The masters of the VRRP
groups are assumed by different routers, as shown in
Figure 34 VRRP in load sharing mode
A router can be in multiple VRRP groups and hold a different priority in a different group.
As shown in
VRRP group 1—Router A is the master; Router B and Router C are the backups.
VRRP group 2—Router B is the master; Router A and Router C are the backups.
VRRP group 3—Router C is the master; Router A and Router B are the backups.
For load sharing among Router A, Router B, and Router C, hosts on the LAN need to be configured to
use VRRP group 1, 2, and 3 as the default gateways, respectively. When configuring VRRP priorities,
make sure that each router holds such a priority in each VRRP group that it will take the expected role in
Configuring VRRP for IPv4
VRRP for IPv4 configuration task list
To form a VRRP group, perform the following configurations on each device in the VRRP group.
Complete these tasks to configure VRRP for IPv4:
Specifying the type of MAC addresses mapped to virtual IP addresses
Creating a VRRP group and configuring virtual IP address
Configuring router priority, preemptive mode and tracking function
Configuring VRRP packet attributes
34, the following VRRP groups are present: