Basic knowledge of LAN

Local Area Network (LAN); For LAN, we usually mean local area network, which is the most common and widely used type of network.

With the development and improvement of the whole computer network technology, the local area network has been fully applied and popularized, almost every corner has its own local area network, and some even have their own small local area network in the family. Obviously, LAN is a local area network that covers a small area. For LAN, the number of computer is not limit, from two sets to hundreds sets. Generally speaking, for the enterprise LAN, the number of workstations is in dozens to 200 sets. In general, the geographical distance involved in the network can be within a few meters to 10 kilometers. LANs are generally located in a building or a company, there is no path-finding problem, no network layer applications problem.

The IEEE 802 Standard Committee defines several major LAN networks: Ethernet , Token Ring , Fiber Distributed Interface (FDDI), Asynchronous Transport Mode (ATM), and the latest wireless local Area Network (WLAN).

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