H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 12/437 (2006.01) H04J 14/02 (2006.01)
Patent
CA 2294828
The present invention relates to a self-healing ring network and a method for fault handling in said network. Said network comprises two communication paths (1, 2) and at least two nodes (N1, N2, N3, N4, N5). A first node (N1) and a second node (N5) suppress transmission to and/or reception from a segment (IS) in the ring, called an inactive segment. In the case of an occurring fault, the inactive segment is moved to the fault. According to the invention the network comprises a separate supervisory channel (OSC) for transmitting information of the fault between the nodes (N1, N2, N3, N4, N5) of the network, in which supervisory channel (OSC) a fault flag (ASSERT_PSS) is provided for the indication of the fault.
L'invention concerne un réseau en anneau autorégénérateur et un procédé de gestion des défaillances d'un tel réseau. Ce réseau comprend deux voies de communication (1, 2) et au moins deux noeuds (N1, N2, N3, N4, N5). Un premier noeud (N1) et un second noeud (N5) interrompent l'émission vers un segment (IS) de l'anneau et/ou la réception provenant de ce segment (IS), ce segment étant appelé segment inactif. Si une défaillance survient, le segment inactif est déplacé vers ce point défaillant. Selon l'invention, le réseau comprend une voie de surveillance (OSC) distincte permettant la transmission d'informations relatives à une défaillance entre les noeuds (N1, N2, N3, N4, N5) du réseau, voie de surveillance (OSC) dans laquelle la présence d'un drapeau défaillance (ASSERT_PSS) signale la défaillance.
Askinger Tomas
Johansson Bengt
Wood Nigel
Ericsson Canada Patent Group
Telefonaktiebolaget Lm Ericsson
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