Method and system for efficient link recovery for fibre...

Details Method and system for efficient link recovery for fibre... Method and system for efficient link recovery for fibre...

H - Electricity

04

L

H04L 29/06 (2006.01) H04B 10/08 (2006.01) H04B 10/20 (2006.01) H04L 12/28 (2006.01) H04L 29/14 (2006.01)

Patent

CA 2555593

A method and system for flow control of GFP-encapsulated Fibre Channel frames over SONET/SDH transport networks is described. Transport interfaces, in the form of port cards, monitor any switch-over or error in the SONET/SDH transport network responsive to GFP out of synchronization signals; and transmit Fibre Channel Ordered Sets indicative of non-operation to it associated Fibre Channel port so that the Fibre Channel port performs link initialization and buffer credit recovery procedures with its counterpart Fibre Channel port across the SONET/SDH transport network. This speeds the recovery of the link between the two Fibre Channel ports.

L'invention concerne un procédé et un système de régulation de débit de trames de canaux à fibres optiques encapsulés GFP, sur des réseaux SONET/SDH. Des interfaces de transport, sous forme de cartes d'accès, contrôlent toute commutation ou erreur dans le réseau de transport SONET/SDH, sensible à des signaux de non synchronisation GFP ; et transmettent des ensembles ordonnés de canaux à fibres optiques, indicatifs d'un non-fonctionnement, à son accès de canal à fibre optique associé, de telle façon que l'accès du canal à fibre optique effectue l'initialisation de la liaison et tamponne les processus de récupération de crédits, par son accès de canal à fibre optique conjugué, à travers le réseau de transport SONET/SDH. Ceci accélère la récupération de la liaison entre les deux accès de canaux à fibres optiques.

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