What is the difference among local area network, wide area network and metropolitan area network
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The differences of local area network and metropolitan area network are: 1, different coverage; 2, different interface types; 3, different transmission rates; 4, different protocols.
The differences between the local area network and the metropolitan area network are:
1. Different coverage
Local area network is smaller than metropolitan area network and wide area network. The transmission distance of the wide area network is generally more than 100 kilometers.
2. Different interface types
Local area network: Ethernet RJ-45 electrical interface, LC/SC/ST multimode fiber.
Metropolitan area network: IP-VPN, Wireless LAN.
Wan: serial port, T1, POS, ATM,E1.
3. Different transmission rates
Wide area Network (10/100/1000/10000/10G/40G/100G).
Man (basic service of 4 kb/s to leased line service of 2.5 Gb/s/10 Gb/s).
Local area network (ISDN/PSTN/T1/E1/T3/E3/OC-3/OC-12/OC-48/OC-192).
4. Different protocols are used
Wide area Network (Ethernet)
Metropolitan area Network (TCP/IP protocol)
Local area network (PPP,HDLC)
Extended data:
Actual use of three types of networks:
1. Local area network (Loxal Area Network,L A N) refers to the computer network formed by the interconnection of computers in office buildings or campus within a few hundred meters to more than ten kilometers. Computer local area network is widely used to connect personal computers or workstations of campuses, factories and institutions to facilitate the sharing of resources (such as printers) and data communication between personal computers or workstations.
2. The technology used in metropolitan area network (Metropolitan Area Network,M A N) is basically similar to that of local area network, but on a larger scale. The metropolitan area network can cover not only several office buildings not far away, but also a city; it can be either a private network or a public network.
3. Wide area network (Wido Area Network,WA N) usually spans a large physical range, such as a country.
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