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dual-ring topology Last modified: Tuesday, November 04, 2003
A network topology in which two concentric rings connect each node on a network instead of one network ring that is used in a ring topology. Typically, the secondary ring in a dual-ring topology is redundant. It is used as a backup in case the primary ring fails. In these configurations, data moves in opposite directions around the rings. Each ring is independent of the other until the primary ring fails and the two rings are connected to continue the flow of data traffic.
	Related Categories Network Topologies Related Terms 5-4-3 rule bus network collapsed backbone local-area network logical topology mesh physical topology token-ring network