LANs are capable of transmitting data at speeds very fast, much faster than data can be transmitted over a telephone line.
Spanning tree protocol to prevent loops, their ability to manage differing traffic types via quality of service (QoS).
A LAN can include a wide variety of other network devices such as firewalls, load balancers, and sensors.
Simple LANs generally consist of cabling and one or more switches. A switch can be connected for Internet access.
Ethernet and Wi-Fi are the two most common transmission technologies in use for local area networks.
LANs can maintain connections with other LANs via leased lines, leased services, or across the Internet using virtual private network technologies.