What is Bus Topology? Write It’s Advantages & Disadvantages.

Bus Topology

To understand Bus Topology, we’ve to understand Network Topology first.

Network topology refers to the physical layout of the network within which all the devices area unit connected. There area unit many forms of topographic style and methods accustomed implement LAN. Network designers think about many factors
once determinant that topology or combination of topologies to use: the sort of computers put in, type of cabling, the cost of components, distance between
each laptop and also the speed with that knowledge should travel round the network.
The ordinarily used physical network topologies area unit bus, star and ring.
Bus network is an appointment in a very native space network (LAN) within which every
node is connected to a main cable or link known as the bus. Transmission from any station travels the length of the bus. Transmission from any station travels the length of the bus, in both directions, and can be received by all other stations. The bus has terminators at either end which absorb the signal, removing it from the bus.

What is Network Topology?

 

Data is transmitted into small groups called packets. A packet may be a knowledge
phase that features a header, payload and control elements that are transmitted together. The receiving laptop reconstructs the packet into the first structure.

Advantages of bus topology are:

  • Low traffic network, since solely touch of devices are allowed within the network.
  • Inexpensive as a result of it desires a server, digital computer, Associate in Nursing LAN, cable, and network interface cards.
  • Bus topology use short length cable that decrease the installation value. it’s easy and simple to take care of.

Disadvantages of bus topology are:

  • If drawback happens on the backbone “cable”, the complete network can go down.
  • Troubleshooting may be troublesome.
  • Limited to future addition of alternative devices.

Star Topology
Star topology is that the commonest topology in use these days. In a topology, every device features a dedicated purpose to purpose link solely to central controller “hub”. A hub is a rectangular box-shaped device with multiple plug-in points called ‘ports’. Groups of knowledge area unit routed through the hub and sent to the hooked up nodes, therefore reaching their destinations.

Ring Topology
In the ring topology, nodes area unit connected to every in a very control system by one communication cable. Data transfers in one direction, from one node to another around the ring. Thus, the info packets flow into on the ring in either dextrorotary or anti-clockwise direction. As a packet circulates past every station, the destination station recognizes its address on the packet header, and copies the packet contents onto itself. After a packet travels a full circle, it is removed at the source station. A ring topology is also called loop network.

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