A virtual IP (VIP) address is an IP address that does not directly connect to a specific interface. Inbound packets sent to a Virtual IP address are redirected to a physical network interface. VIPs support connection redundancy by assigning the address to multiple switches. If one device becomes unavailable, packets sent to the address are still serviced by the functioning device.
Arista switches support virtual IP addresses through Virtual Router Redundancy Protocol, version 2 (VRRPv2), Virtual Router Redundancy Protocol, version 3 (VRRPv3), and Virtual-ARP (VARP). This chapter describes the Arista switch support of virtual IP addresses and contains these sections: