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Network Topology :- Network topology is the arrangement of the elements of a communication network. Network topology can be used to define or describe the arrangement of various types of telecommunication networks, including command and control radio networks, and computer network.There are five types of topology in computer networks: Mesh Topology. Star Topology. Bus Topology. Ring Topology. Hybrid Topology. Including this all I am gonna explain about bus topology, its advantages and disadvantages uses and some facts about it. Bus topology

A bus topology is a topology for a Local Area Network in which all the nodes are connected to a single cable. The cable to which the nodes connect is called a "backbone". If the backbone is broken, the entire segment fails. Bus topologies are relatively easy to install and don't require much cabling compared to the alternatives. On a bus, only one computer can transfer information at a time. The bus has terminators at either end which absorb the signals transmitted on a network cable.  A signal from the source travels in both directions to all machines connected on the bus cable until it finds the MAC address or IP address on the network that is the intended recipient. If the machine address does not match the intended address for the data, the machine ignores the data.                                                                                                                    

           Bus topology is used for:

·        Small workgroup local area networks  whose computers are connected using a thinnet cable.

·        Trunk cables connecting hubs or switches of departmental LANs to form a larger LAN. It connects computers along a single or more cable to connect linearly . 

               Advantages of bus topology :-

              ·        It works well when you have a small network.  Its the easiest network topology for connecting computers or peripherals in linear fashion. It requires less cable than a star topology.

    Disadvantages of bus topology :-

·       Limited cable length and number of stations

·       If there is a problem with the cable, the entire network breaks down.

·       Maintenance costs may be higher in the long run

·       It is difficult to isolate faults in the network

 

             Some facts about bus topology :

·                                                                                                                                   In a bus topology, signals travel from one node to all other nodes on the bus. A device called a terminator is placed at both ends of the trunk cable.

·        Terminators absorb signals and prevent them from reflecting repeatedly back and forth on the cable.

·        A break in the network bus means that the end of the network bus is no longer terminated.

·        A form of bus topology is known as tree topology.

                                       !!THANK YOU!!