(VRRP, VRRP is proposed to manage the above problems. As a fault-tolerant protocol, VRRP is suitable for local area networks (such as Ethernet, etc.) that support multicast or broadcast. VRRP forms a backup group with a group of routers in the LAN, which is equivalent to a virtual router in function. The hosts in the LAN only know the IP address of the virtual router, but do not know the IP addresses of the detailed devices in the backup group. They set their own route-less next-hop address to the IP address of the virtual router. Therefore, the hosts in the network communicate with other networks through this virtual router. ;VGMP configuration explanation, and legend)
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