dual counter-rotating ring

dual counter-rotating ring

A network topology that uses two rings, with transmission in opposite directions in each ring. Designed for fault tolerance and increased speed, if one of the rings breaks, traffic can be rerouted on the other ring. See FDDI and Sebring ring.
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References in periodicals archive ?
Supports dual counter-rotating ring architecture that provides automatic loopback in the event of failure on any path.
The IEEE's 802.6 recommendation incorporates the concept of dual counter-rotating rings (or buses), the same as FDDI.