Topology

Topology

1. Types of Topologies

   • Mesh
     • Disadvantages
       • There are high chances of redundancy in many of the network connections. Overall cost of this network is way too high as compared to other network topologies. Set-up and maintenance of this topology is very difficult. Even administration of the network is tough.
     • Advantages
       • Data can be transmitted from different devices simultaneously. This topology can withstand high traffic. Even if one of the components fails there is always an alternative present. So data transfer doesn’t get affected. Expansion and modification in topology can be done without disrupting other nodes.
     • What is a partial mesh network?
       • This is far more practical as compared to full mesh topology. Here, some of the systems are connected in similar fashion as in mesh topology while rests of the systems are only connected to 1 or 2 devices. It can be said that in partial mesh, the workstations are ‘indirectly’ connected to other devices. This one is less costly and also reduces redundancy.
     • What is a full mesh network?
       • n this, like a true mesh, each component is connected to every other component. Even after considering the redundancy factor and cost of this network, its main advantage is that the network traffic can be redirected to other nodes if one of the nodes goes down. Full mesh topology is used only for backbone networks
   • Star
     • Advantages
       • Easy to connect new nodes or devices. In star topology new nodes can be added easily without affecting rest of the network. Similarly components can also be removed easily. Centralized management. It helps in monitoring the network. Failure of one node or link doesn’t affect the rest of network. At the same time its easy to detect the failure and troubleshoot it.
     • Disadvantages
       • Too much dependency on central device has its own drawbacks. If it fails whole network goes down. The use of hub, a router or a switch as central device increases the overall cost of the network. Performance and as well number of nodes which can be added in such topology is depended on capacity of central device.
     • What is a star network
       • a star network is a data or communication network in which all nodes are independently connected to one central unit.

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