VRRP
Virtual Router Redundancy Protocol
Open standard
A master and backup router are elected.
Multicast IPv4 address: 224.0.0.18
Virtual MAC address: 0000.5e00.01XX (XX = VRRP group number)
In a situation with multiple subnets/VLANs, you can configure a different master router in each subnet/VLAN to load balance.
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