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Selasa, 9 November 2010

BUS TOPOLOGY

DEFINITION.


Bus topology is the preferably used in Local Area Network (LAN).

WHAT IS BUS TOPOLOGY.

Bus topology is the preferably used in Local Area Network (LAN). Bus topology consists of central cable called backbone cable that carries all traffic. In bus topology all nodes are attached with single leaner cable. These nodes may be fileserver, workstation and other peripheral devices. Bus topology is very simple and reliable. Inexpensive cable is used in bus topology. Bus topology is very easy to understand and implement for small network. Different devices and computers are easy to connect.

Bus topology requires less cable length than other topology. If we want to extend your network then it is very easy in Bus topology. Bus topology has some disadvantages. When there is heavy traffic on cables then bus topology will not workproperly. Sometime due to heavy traffic network may stop working. As we know that bus topology use single cable to connect computers. But if the cable is broken then the whole network goes down. Computers are required at both end of the centralcable. In bus topology problem are very difficult to isolate. Bus topology is mostly used by Ethernet and local talk. Bus topology is not preferred for large area.

WHEN WE USE BUS TOPOLOGY.

When we have to use a common backbone to connect all devices, we use Bus topology

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