Fault recovery system of a ring network

H - Electricity – 04 – L

Patent

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Details

H04L 1/00 (2006.01) H04J 3/08 (2006.01) H04L 12/437 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2041789

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, and, 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 excecutes a loopback operation.

L'invention est un système de remise en marche après une défaillance pour un réseau en anneau qui utilise un système de transmission à module de transmission asynchrone. Le système de l'invention comprend une unité d'enregistrement de données de défaillance qui enregistre, quand une défaillance est détectée par un noeud, des données connexes dans un bloc transmis par une ligne en service et une ligne de protection montées en sens opposés, et qui détecte ces données de défaillance dans un noeud de surveillance ou un noeud situé immédiatement en amont de la défaillance, lequel exécute alors une opération de rétroaction.

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