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.

Features of Star Topology

• Every node has its own dedicated connection to the hub.
• Hub acts as a repeater for data flow.
• Can be used with twisted pair, Optical Fibre or coaxial cable.

Advantages of Star Topology

• Fast performance with few nodes and low network traffic.

• Hub can be upgraded easily.

• Easy to troubleshoot.

• Easy to setup and modify.

• Only that node is affected which has failed, rest of the nodes can work smoothly.

Disadvantages of Star Topology

• Cost of installation is high.

• Expensive to use.

• If the hub fails then the whole network is stopped because all the nodes depend on the hub.

• Performance is based on the hub that is it depends on its capacity

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)/2 physical channels to link n devices.

Types of Mesh Topology

• Partial Mesh Topology : In this topology some of the systems are connected in the same fashion as mesh topology but some devices are only connected to two or three devices.
• Full Mesh Topology : Each and every nodes or devices are connected to each other.

Features of Mesh Topology

• Fully connected.

• Robust.

• Not flexible.

Advantages of Mesh Topology

• Each connection can carry its own data load.

• It is robust.

• Fault is diagnosed easily.

• Provides security and privacy.

Disadvantages of Mesh Topology

• Installation and configuration is difficult.

• Cabling cost is more.

• Bulk wiring is required.