Error recovery in an information communication system

Details Error recovery in an information communication system Error recovery in an information communication system

H - Electricity

04

L

H04L 1/00 (2006.01) H04L 1/18 (2006.01) H04L 12/28 (2006.01) H04L 29/14 (2006.01)

Patent

CA 2095054

An error recovery method for use in an information communication system which comprises a plurality of nodes connected by links. Information is transferred between the nodes in frames of predefined types, including at least a first frame type used to transfer data and a second frame type used for error recovery. Each node has at least a first and a second mode of operation, in the first mode frames of both first and second types are accepted, in the second mode frames of the first type are discarded and only frames of the second type are accepted. A master node which controls error recovery is selected from amongst those nodes which can initiate transfers.

L'invention est une méthode de correction des erreurs pour les systèmes de transmission d'informations comportant une pluralité de noeuds connectés par des liaisons. Les informations sont transmises entre les noeuds par blocs de types prédéfinis, dont au moins un premier type utilisé pour le transfert des données et un second type pour la correction des erreurs. Chaque noeud a au moins un premier et un second mode de fonctionnement; dans le premier, les blocs du premier et du second type sont acceptés, et dans le second, les blocs du premier type sont rejetés et seuls les blocs du second type sont acceptés. Un noeud maître servant à contrôler la correction des erreurs est sélectionné parmi les noeuds qui peuvent lancer un transfert de données.

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