Bus topology

Updated: 12/10/2023 by Computer Hope
Bus topology

Alternatively called line topology, bus topology is a network setup where each computer and network device is connected to a single cable or backbone. Depending on the type of network card, a coaxial cable or an RJ-45 network cable is used to tie them together.

Bus topology was more common in the early days of networking, but other topologies, such as star and ring, are more popular today because they're reliable and easier to scale. Also, networks that utilize bus topology are susceptible to collisions, where two devices try to transmit at the same time, leading to corruption or non-transmission of data.

Bus topology still sees usage in scenarios involving smaller networks or as a segment of a larger network. Being less complex than other topologies, it is also useful in labs or classrooms for teaching students new to networking.

Advantages of bus topology

Some advantages of using bus topology include:

  • Bus topology is uncomplicated and inexpensive, making it ideal for small networks.
  • It's the most straightforward method for connecting computers or peripherals in a linear fashion.
  • It requires less cable length than other topologies, such as star.

Disadvantages of bus topology

Some disadvantages of using bus topology are the following:

  • It can be difficult to identify the problems if the whole network goes down.
  • It can be hard to troubleshoot individual devices as they all connect to the same backbone.
  • Bus topology doesn't scale well, so it's not as useful with large networks.
  • Terminators are required for both ends of the main cable.
  • Additional devices slow the network down.
  • If a main cable is damaged, the network fails or splits into two.

Bus, Network, Network terms, Peripheral, Star topology, Topology