What interface is LAN?

LAN is the abbreviation of Local Area Network, and the Chinese name is "LAN"; therefore, the LAN interface refers to the LAN interface. The main purpose of the LAN interface is to connect the router to the local area network. The LAN interface is usually on the router and is mainly responsible for outputting signals. By connecting the network card interface of the computer with a network cable, it allows the computer to access the Internet.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

The LAN interface is a local area network interface, its main purpose is to connect the router to the local area network. The LAN interface is usually on the router and is mainly responsible for outputting signals. By connecting the network card interface of the computer with a network cable, it allows the computer to access the Internet.

Because LAN types are also diverse, this also determines that the router's LAN interface types may also be diverse. Different networks have different interface types. Common Ethernet interfaces mainly include AUI, BNC and RJ-45 interfaces, as well as FDDI, ATM, and optical fiber interfaces. These networks have corresponding network interfaces.

LAN is the abbreviation of Local Area Network, Chinese name: Local Area Network. Functionally speaking, it is a network composed of more than one router or switch connected to multiple computers, or a network composed of two or more computers. LAN can realize functions such as file management, application software sharing, printer sharing, scheduling within work groups, email and fax communication services, etc.

LAN (Local Area Network), in terms of geographical scope, refers to a local (smaller) geographical scope, usually within a few kilometers, that connects various computers, external devices and databases to each other. A computer communication network connected together. For example: computer communication networks in offices, schools, institutions and other places. It can be connected to remote local area networks, databases or processing centers through data communication networks or dedicated data circuits to form a larger-scale information processing system. LAN can realize functions such as file management, application software sharing, printer sharing, scanner sharing, scheduling within work groups, email and fax communication services, etc. A local area network is strictly closed. It can consist of several or even thousands of computers in the office. The main technical elements that determine a LAN are: network topology, transmission media and media access control methods.

Generally, ordinary routers only have 4 LAN ports. If they are not enough, you can use a "switch" to expand your LAN port. This switch can expand the LAN port. the quantity you need. The router can also be used as a switch. If you do not use the WAN port and only use the LAN port, you can use it as a switch.

The standard definition of the LAN port is: LAN is the local area network interface, the network cable port between the router and the user; WAN is the wide area network, which is the network cable port with the external network; LAN is the internal computer, mobile phone, etc.; WAN It is the external interface that connects to the higher-level operator.

For more related knowledge, please visit the FAQ column!

The above is the detailed content of What interface is LAN?. For more information, please follow other related articles on the PHP Chinese website!