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In a ring network topology, nodes are connected in a ring or a loop. Data is sent around the ring, being passed from one computer system to the next until it reaches its destination.

Advantages and disadvantages of using a ring network topology

Having nodes arranged in a ring network topology brings some benefits:

• because data passes around the network in one direction, there are no network collisions
• adding additional nodes has very little impact on bandwidth

However, ring network topologies also have disadvantages:

• if any of the nodes fail, the ring is broken and data cannot be transmitted
• it is difficult to troubleshoot a ring network topology
• because all nodes are wired together, the network must be temporarily stopped to add additional nodes

Ring network topologies in use

Ring network topologies are used when a simple network is needed. They are suitable for locations that do not rely on very high data-transfer speeds, and where the network is unlikely to alter in size or structure. For example, a small office with only a few nodes may use a ring network topology.