Thus, your NOS views your adapter as four separate adapters. Therefore, you must configure each network segment with a unique network number. All cross-subnet traffic must be routed. Routing may be performed internally by the server itself, or externally by a local router. Internal routing is the least expensive alternative, but impairs server responsiveness by involving the server in frame forwarding.
External routers provide high-performance frame forwarding without impacting the server.
However, they are cumbersome, expensive, and difficult to configure and manage. The adapter places no limit on the number of nodes per port. Ensure that each port is bound to the protocol with a unique network number. VNETs are multisegment virtual subnets. VNETs are made possible by a layer of virtual network software that binds to multiple instances of the adapter LAN driver and registers them with the NOS as a single subnet.