Ring topology is the network topology in each network device is
connected in the shape of a circle without any end point. Each node is
connected together in a closed loop or a ring. Signals are transmitted
in one direction i.e. clockwise or anti clockwise till it reaches its
destination.
- Each device in the ring has a repeater. When the device receive the signal intended for the other node, it just regenerated the bits and passes them along. Ring network passes a token. A token is a short message with the electronic address of the receiver. Each network interface card is given a unique electronic address, which is used to identify the computer on the network.
Advantages of ring topology:
- The amount of cable required is lesser than other topology.
- Short cable connection which causes an increase in network reliability.
- High speed of data transmission.
Disadvantages of ring topology:
- Failure of any one of computer on the network makes the whole network down.
- Difficult to diagnose faults.
- It is difficult to add or remove any node from the network.
- Network reconfiguration is difficult.
- Requires more complicated control software than star topology.
