Bus network
This article is about a type of computer network. For networks of municipal bus routes, see Public transport bus service.
Topology of a bus network
A bus network is a network topology in which nodes are connected in a daisy chain by a linear sequence of buses.
How it works
The bus is the data link in a bus network. The bus can only transmit data in one direction, and if any network segment is severed, all network transmission ceases.
A host on a bus network is called a station or workstation. In a bus network, every station receives all network traffic, and the traffic generated by each station has equal transmission priority.[1] Each network segment is, therefore, a collision domain. In order for nodes to transmit on the same cable simultaneously, they use a media access control technology such as carrier sense multiple access (CSMA) or a bus master.
Advantages and disadvantages
Advantages
- Easy to connect a computer or peripheral to a linear bus
- Requires less cable length than a star topology
- It works well for small networks.
Disadvantages
- Entire network shuts down if there is a break in the main cable
- Terminators are required at both ends of the backbone cable
- Difficult to identify the problem if the entire network shuts down
- Not meant to be used as a stand-alone solution in a large building
- It is slow when more devices are added into the network
- If a main cable is damaged then network will fail or be split into two networks
References
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