Ring Topology

o  Each device has point-to-point dedicated link with only two devices on either side 
o  A signal is passed in the ring in one direction from device to device until it reaches its
destination
o  Each device has a repeater incorporated
o  When a device receives a signal destined for another device, it regenerates the bits
and pass them along

™ Advantages of Ring Topology

  Easy to Install and Reconfigure
  Only two connections to be moved to add or delete a device

  SIMPLE Fault Isolation
  Generally a signal is circulating at all times in a ring. If one device does not receive a signal within a specified period, it can issue an alarm to tell network operator about the problem and its location
 
™ Disadvantages of Ring Topology

  Unidirectional Traffic 
  A break in a ring I.e. a disabled station can disable the entire network
 Can be solved by using: