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Network Topology


Ring topology


Ring topology doesn't have any central host computer. 

There is a direct point to point link two neighboring nodes at dispersed locations. A network cable passes from one node to another until all nodes are connected in a ring.

 

A node can receive data from any of its adjacent nodes. After receiving the data a node needs to verify if data is for its own purpose or not. If it is then it uses it. If not then it passes the data to the next node.

 

A ring topology can be unidirectional or bidirectional. 

 

Advantage of Ring topology

  • Ring topology offers high speed transmission.
  • Ring topology performance remains stable during heavy traffic with less propogation delay.
  • Ring topology doesn't have central node so it works well in place where there is no need of central node to make routine decisions.
  • Ring topology is more reliable than star network topology.
  • Ring topology needs cable of short length.

Disadvantage of Ring topology

  • As the data is transmitted from one node to other so the communication delay increases if there is lots of intermediate nodes.
  • In ring topology the failure of one node will affect the entire network. No traffic will pass until the defected node is removed or replaced.
  • Detection of faulty node is difficult in ring topology.
  • Ring topology needs more complex and complicated software.


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