What is bus topology


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Bus topology

With the bus topology, all stations are connected to a common passive transmission medium. Figure 3.1 shows the structure of a network based on the bus topology. Every station connected to the bus can communicate freely with every other station. In a network based on bus technology, there is no need for a master station to control communication in the network. Data that is transmitted via the bus from a sending station to the receiving station is received by all stations attached to the bus, but only evaluated by the receiving station (broadcast).
Advantages of the bus topology:
  • easily expandable structure
  • Stations can be connected and disconnected during operation
  • the bus cabling is modular
  • high transmission speeds
  • Not susceptible to interference, as no master server is required
Disadvantages of the bus topology
  • The structure is prone to failure of the transmission medium
  • Depending on the protocol used, unpredictable waiting times occur during communication between the stations
  • The linear expansion is limited
The bus system is very widespread, due to Ethernet, which is based on this system arrangement.

Next page:Ring topology Upwards:Topologies Previous page:Topologies & nbsp contentYasar Arman
2000-05-15