Method for redundantly transmitting atm cells

Details Method for redundantly transmitting atm cells Method for redundantly transmitting atm cells

H - Electricity

04

L

H04L 12/56 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2308509

According to known methods, ATM cells are transmitted separately via connection elements arranged redundantly within switching systems. This presents a risk of unchecked ATM cell loss at the output end in the event of an overload or a fault. According to the inventive method, two redundantly arranged transmission devices are synchronised. This synchronisation process takes place by means of a common status table which is provided for the two devices, showing the current level of fullness of the cell queues.

Dans l'état actuel de la technique, les cellules MTA sont transmises séparément par l'intermédiaire de liaisons à configuration redondante disposées au sein des systèmes de commutation. En cas de surcharge ou de défaillance, il existe le risque de pertes de cellules MTA non vérifiées, côté sortie. Selon l'invention, deux dispositifs de transmission à configuration redondante sont synchronisés. Ce processus de synchronisation s'effectue au moyen d'une table d'états normale prévue pour les deux dispositifs et indiquant la densité actuelle des files d'attente des cellules.

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