Page 15 - KEC Khaitan C8 Flipbook
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CAMPUS AREA NETWORK (CAN)
                 CAN connects two or more LANs that are limited to specific

                 geographical areas. For example, college campus, office                         Campus
                 building, etc. A campus area network is larger than LAN                       Network
                                                                                                 Area
                 since it may span multiple buildings within a specified area.






                      LAN                 LAN          METROPOLITAN AREA NETWORK (MAN)
                                                       MAN consists of two or more local area networks or campus
                                                       area networks together that usually spans several buildings
                                                       in the same city or town. It covers an area ranging from 10
                                                       to 100 km. For example, the Internet services provided to
                                LAN
                                                       users in a city or the ATM network system of any area falls
                                                       under MAN.


                 WIDE AREA NETWORK (WAN)

                 WAN covers a wide geographical  area. In  other words,  it  is a group of computers  that  are
                 separated by a large distance and tied together. It links different metropolitans and even countries
                 across national boundaries. The most popular example of WAN is the Internet: a collection of vast
                 number of computers spread across the world.






                       LAN                      LAN                                 LAN                      LAN










                                                     LAN                       LAN






                           NETWORK ARCHITECTURE

                 The network architecture defines the overall design of the computer network. There are two types

                 of network architectures.











                                                                                              Networking Concepts  13
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