Overview VBRP

VBRP (Virtual Backup Router Protocol) provides one backup function for the gateway, used by multiple routers to maintain the continuous forwarding of the virtual gateway. VBRP maps the referred multiple routers to one virtual router and ensures that there is only one router to represent for the virtual router to forward packets. When the router for forwarding data cannot work normally because of some reason, another standby router replaces the virtual router to forward packets, while the router that cannot work normally does not bear the forwarding task any more. The switching process is short and it is transparent for the host in the LAN, so as to reach the backup function for the gateway.

The active device mentioned in the following text is replaced by “Active” and the standby device is replaced by “Standby”.