Thursday, 30 April 2015

ring topology

RING TOPOLOGY


A ring network is a network topology in which each node connects to exactly two other nodes, forming a single continuous pathway for signals through each node – a ring. Data travel from node to node, with each node along the way handling every packet.



Ring Topology

Advantages :-

  1. Very orderly network where every device has access to the token and the opportunity to transmit
  2. Performs better than a bus topology under heavy network load
  3. Does not require a central node to manage the connectivity between the computers
  4. Due to the point to point line configuration of devices with a device on either side (each device is connected to its immediate neighbor), it is quite easy to install and reconfigure since adding or removing a device requires moving just two connections.
  5. Point to point line configuration makes it easy to identify and isolate faults.
Disadvantages :-

  1. One malfunctioning workstation can create problems for the entire network. This can be solved by using a dual ring or a switch that closes off the break.
  2. Moving, adding and changing the devices can affect the network
  3. Communication delay is directly proportional to number of nodes in the network
  4. Bandwidth is shared on all links between devices
  5. More difficult to configure than a Star: node ad junction = Ring shutdown and reconfiguration.

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