Dual-Ring Topology

What Does Dual-Ring Topology Mean?

Though more expensive than star or extended star topologies, dual-ring is the most cost-efficient redundant topology.

Techopedia Explains Dual-Ring Topology

Dual-ring topology is made up of two rings connected to a network. Each ring works independently until one is disabled when the network fails. When this takes place, the functioning ring automatically wraps around the disabled ring to ensure data flow.

Ring topology advantages include:

• Speed and reliability
• Uninterrupted long distance communication
• Terminators are not required
  

Ring topology disadvantages include:

• Network issues from bad ports or malfunctioning Media Access Unit (MAU) cards
• Negative network impact from any added,altered or damaged device