- Network topology refers to the layout of the computers and devices in a communications network
Type of Network Topology
- Bus topology
- Ring topology
- Star topology
BUS TOPOLOGY
Advantages
- Easy and inexpensive to set up.
- Adding and removing nodes can be done can be done without disturbing the rest of the network.
- Failure of one node does not affect the rest of the network.
Disadvantages
- Failure of the central cable will shut down the entire network.
- Only suitable for small size network.
- Data collision may occur because data transmitted will travel in both directions.
RING TOPOLOGY
Advantages
- Can span a larger network than a bus network.
- Cable faults are easily located , making troubleshooting easier.
- The transmission of data is relatively simple as data travels in one direction only.
Disadvantages
- More difficult to install compared to bus network.
- Failure of any cable or node will affect the operation of the entire network.
- Slower data transmission as the data sent will go through all the nodes.
STAR TOPOLOGY
Advantages
- Failur of one node will not affect the entire network.
- Devices can be added to or removed from the network with little or no disruption to the network.
- Easy to identify problems, making troubleshooting easier.
- Failure of hud or switch willshut down the entire network.
- Requires more cable than the other topologies.
- More expensive due to the cost of the hub/switch.