virtual router
    In the Extreme Networks
        implementations, virtual routers allow a single physical switch to be split into multiple
        virtual routers. Each virtual router has its own IP address and maintains a separate logical
        forwarding table. Each virtual router also serves as a configuration domain. The identity of
        the virtual router you are working in currently displays in the prompt line of the CLI. The
        virtual routers discussed in relation to Extreme Networks switches themselves are not the
        same as the virtual router in VRRP.
In VRRP, the virtual router is
            identified by a virtual router (VRID) and an IP address. A router running VRRP can
            participate in one or more virtual routers. The VRRP virtual router spans more than one
            physical router, which allows multiple routers to provide redundant services to
            users.