What is the difference between LAN, WAN and MAN?

The differences between local area network, wide area network and metropolitan area network are: 1. Different coverage areas; 2. Different interface types; 3. Different transmission rates; 4. Different protocols used.

The difference between LAN, WAN and MAN is:

1. Different coverage areas

The local area network is smaller than the metropolitan area network and is smaller than the wide area network. The WAN transmission distance is generally hundreds of kilometers or more.

2. Different interface types

LAN: Ethernet RJ-45 electrical interface, LC/SC/ST multi-mode optical fiber.

Metropolitan area network: IP-VPN, Wireless LAN.

WAN: serial port, T1, POS, ATM, E1.

3. Different transmission rates

WAN (10/100/1000/10000/10G/40G/100G).

Metropolitan area network (4 kb/s basic service to 2.5 Gb/s/10 Gb/s leased line service).

LAN (ISDN/PSTN/T1/E1/T3/E3/OC-3/OC-12/OC-48/OC-192).

4. Use different protocols

Wide Area Network (Ethernet)

Metropolitan Area Network (TCP/IP protocol)

Local Area Network (PPP, HDLC)

Extended information:

The actual use of three types of networks:

1. Local area network (Loxal Area Network, L A N) is It refers to a computer network formed by interconnecting computers in office buildings or campuses within a range of several hundred meters to more than ten kilometers. Computer LANs are widely used to connect personal computers or workstations in campuses, factories, and institutions to facilitate sharing of resources (such as printers) and data communication between personal computers or workstations.

2. The technology used in the Metropolitan Area Network (M A N) is basically similar to that of the LAN, but it is larger in scale. A metropolitan area network can cover several office buildings not far apart, or it can cover a city; it can be a private network or a public network.

3. A wide area network (Wido Area Network, WA N) usually spans a large physical range, such as a country.

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