“Local Area Network (LAN) A communications infrastructure intended for the local transport of data, video, and voice. Designed to use dedicated wiring over a limited distance (typically a diameter of less than five kilometers) to connect many intercommunicating nodes. Ethernet is the most popular of LAN technologies. LANs are interconnected over distance through Metropolitan Area Networks (MANs) and Wide Area Networks (WANs) that utilize carrier-class transport and switching equipment.”