vEdge Router Redundancy and Supported FHRP

D.

When designing vEdge router redundancy in a Cisco Enterprise network, the supported First Hop Redundancy Protocol (FHRP) is Virtual Router Redundancy Protocol (VRRP).

VRRP is a network protocol that provides automatic failover for IP networks. It allows multiple routers to participate in a virtual router group, which presents a virtual IP address to the hosts on a LAN. One router is designated as the active router, while the others remain in standby mode. If the active router fails, one of the standby routers takes over as the active router, assuming control of the virtual IP address.

VRRP is preferred over other FHRP protocols, such as Hot Standby Router Protocol (HSRP) and Gateway Load Balancing Protocol (GLBP), because it is a standard protocol that is supported by multiple vendors. HSRP is a Cisco proprietary protocol that is only supported on Cisco devices, while GLBP is a Cisco proprietary protocol that provides load balancing capabilities, but is limited to Cisco devices.

The Overlay Management Protocol (OMP) is a protocol used in Cisco SD-WAN solutions to manage and exchange control information between vEdge routers. It is not an FHRP protocol and is not used for router redundancy.