In a ring topology, each device has a dedicated point to point line configuration only with the two devices on either side of it. A signal is passed along the ring in one direction from device to device, until it reaches its destination. Each device in the ring incorporates a repeater. When a device receiver a signal intended for another device, its repeater regenerates the bits and passes them along.
A ring is relatively easy to install and reconfigure. Each device is linked to its immediate neighbors. However, unidirectional traffic can be disadvantaged. In a simple ring, a break in ring can disable the entire network. This weakness can be solved by using a dual ring or use of switches capable of closing off breaks.
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