Star topology
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A star network consists of one central switch, hub or computer which sends all messages. This consists of a central device, to which all other devices are connected; this central device provides a common connection point for all devices through a hub. In star topology, every device (computer workstation or any other peripheral) is connected to a central device called a hub or switch.
Advantages:
Advantages:
- Due to its centralized nature, the topology offers simplicity of operation.
- It also achieves isolation of each device in the network.
- Adding or removing network devices is easy, and can be done without affecting the entire network.
- Due to the centralized nature, it is easy to detect faults in the network devices.
- As the analysis of traffic is easy, the topology poses lesser security risk.
- Data packets do not have to pass through many devices, like in the case of a ring network. Thus, with the use of a high-capacity central hub, traffic load can be handled at fairly decent speeds.
- Network operation depends on the functioning of the central hub. Hence, central hub failure leads to failure of the entire network.
- Also, the number of devices that can be added depends on the capacity of the central hub.
- The setup cost is quite high.