Fault recovery system of a ring network

Details Fault recovery system of a ring network Fault recovery system of a ring network

1991-05-07

1994-04-26

Atkinson, Charles E.

Excavating

370 15, 370 161, 371 205, 371 206, G01R 3128

Patent

active

053073533

ABSTRACT:
A fault recovery system of a ring network based on a synchronous transport module transmission system, having a fault data writing unit for writing, when an input fault is detected by a node, fault data in a predetermined user byte in an overhead of a frame flowing through both a working line and a protection line running in opposite directions to each other. By detecting the fault data in a supervision node or a node just before the fault position, the supervision node or the node just before the fault position executes a loopback operation.

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Constable, G. R., "Fiberoptic Lans: The System Integrator's Perspective", Laser Focus, vol. 23, No. 3, Mar. 1987, pp. 112-120.
European Search Report, The Hague, Dec. 19, 1991.

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