VRRP networking

As shown in Figure 44, Router A, Router B, and Router C form a virtual router, which has its own IP address. Hosts on the subnet use the virtual router as the default gateway.

The router with the highest priority among the three routers is elected as the master, and the other two are backups. Only the master in the VRRP group can provide gateway service. When the master fails, the backup routers elect a new master to take over for nonstop gateway service.

Figure 44: VRRP networking