ABSTRACT
A local area network (LAN) is an excellent example of packet-switching technology. A LAN is a privately owned network that provides communication to a local environment. Routers route packets to their destination based on the network address rather than the media access control address. The network can support interfloor, interbuilding, and even intercampus communication, and can be used to connect local devices to a larger network. An understanding of LANs provides a solid starting point in understanding other network technologies. Recalling the street address analogy, a network address is a moniker given to a computer, similar to a family surname. Currently, the dominant network protocols, Transmission Control Protocol/Internet Protocol and Internetwork Packet Exchange, provide the personal computer a logical address. To evaluate networks objectively, it is necessary to consider the subject of cost.
