Ring Topology

In local area networks where the ring topology is used, each computer is connected to the

network in a closed loop or ring. The signal passes through each machine or computer connected

to the ring in one direction, from device to device, until it reaches its destination. Each machines or

computers connected to the ring act as signal boosters or repeaters. When a device receives a

signal intended for another device, its repeater regenerates the bits and passes them along.

Two types of ring topology can be found.

 Single ring – All the devices on the network share a single cable (e.g Token ring)

 Dual ring – The dual ring topology allows data to be sent in both directions (eg, FDDI).

Redundant path provides fault tolerance

Advantages

1. It is relatively easy to install and reconfigure.

2. Easy to identify the problem if the entire network shuts down.

3. The data being transmitted between two nodes passes through all the intermediate nodes. A

central server is not required for the management of this topology.

Disadvantages

1. The failure of a single node of the network can cause the entire network to fail.

2. The movement or changes made to network nodes affects the performance of the entire

network.

3. Only one machine can transmit on the network at a time.