Write note on mesh topology and star topology.

Subject: Modern Information Technology For Management

Topic: IT Infrastructure

Difficulty: Medium

1 Answer

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 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.

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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.

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