Topology in Network Design

In a computer networking, topology refers to physical layout of devices or arrangement of the network, including its nodes and devises. In other words, in a networking how nodes are connected and how these are communicate is also called as network topology. Topology is either physical or logical. Physical topology is the actual geometric layout of workplaces; logical topology refers to the nature of the path signals follow from node to node.

Some physical topologies or arrangements of nodes in computer networking:

• Bus topology: All devices are connected with a central cable.
• Star topology: All devices are connected with central hub. Nodes communicate in network through the help of hub.
• Ring topology: All devices connected with one another with a closed loop, here each device is connected with two more devises on each side.
• Token ring: All devices connected with one another with a closed loop, but signals travel in one particle direction only.
• Mesh topology: Devices are connected with many redundant interconnections between network nodes; here every device has connection with other.
• Tree topology: Tree topology integrates multiple star topologies onto bus topology.

Topology is important in building a network design in homes or offices. This gives physical arrangement of devices in network workplace. Every topology has its unique advantages.

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