What is Bus Topology? and its Advantages and Disadvantages

Bus topology is also known as linear topology. It consists of a main cable where nodes (computers, file server, workstations, peripherals) are connected. The main cable is also called backbone, bus or trunk. 
  • Terminator is connected at each end and T-connecter is used in the cable to connect nodes in the network.
Advantages of Bus topology:
  • Requires less cable length, so is cheaper than other topologies.
  • It is easy to add new node in the network.
  • Failure of one node will not fail system.
  • It is easy to setup computers and other devices in this topology, because all the devices are connected through single wire.
Disadvantages of Bus topology:
  • The whole network system collapses if the common cable is damaged.
  • Difficult to identify the problems if the entire network shuts down.
  • Terminators are required at both ends of the backbone cable.
  • The network slowdown if additional computers are connected.
  • The limited length of the cable in a network may restrict to connect the workstations or devices.