1. Star Topology :
In this type of topology, all the computers are connected to a single hub through a cable.
This hub is the central node and all others nodes are connected to the central node.
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Features
1. Every node has its own dedicated connection to the hub.
2. Hub acts as a repeater for data flow.
3. Can be used with twisted pair, Optical Fibre or coaxial cable.
Advantages
1. Fast performance with few nodes and low network traffic.
2. Hub can be upgraded easily.
3. Easy to troubleshoot.
4. Easy to setup and modify.
5. Only that node is affected which has failed, rest of the nodes can work smoothly.
Disadvantages
1. Cost of installation is high.
2. Expensive to use.
3. If the hub fails then the whole network is stopped because all the nodes depend on the hub.
4. Performance is based on the hub that is it depends on its capacity
2. Mesh Topology :
It is a point-to-point connection to other nodes or devices. All the network nodes are connected to each other.
Mesh has n(n- 1) physical channels to link n devices.
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Features
1. Fully Connected
2. Robust
3. Not flexible
Advantages
1. Each connection can carry its own data load
2. Robust
3. Fault is diagnosed easily
4. Provides security and privacy
Disadvantages
1. Installation and configuration is difficult
2. Cabling cost is more
3. Bulk wiring is required