Improvements in or relating to an atm switch

Details Improvements in or relating to an atm switch Improvements in or relating to an atm switch

H - Electricity

04

L

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

Patent

CA 2235285

An ATM routing switch (21) for bidirectional transmission of digital signal cells (61) some requiring integrity of transmission while others accept some loss of cells in transmission, has a plurality of output ports (30) each handling a plurality of cell queues (134-138) and control circuitry for decoding control bits (60, 62) in each input cell to determine which output port is to be used, which queue is required and whether flow congestion exists at the source of the input cell.

Sélecteur (21) d'acheminement MTA assurant la transmission bidirectionnelle de cellules (61) de signal numérique; certaines cellules assurant l'intégrité de la transmission alors que d'autres cellules acceptent une certaine perte dans la transmission. Le sélecteur d'acheminement comprend plusieurs points (30) de sortie qui acceptent une pluralité de files d'attente (134-138) de cellules et un circuit de commande qui décode les bits de commande (60, 62) dans chaque cellule d'entrée pour déterminer quel point de sortie doit être utilisé, quelle file d'attente est demandée et s'il existe un encombrement du flux à la source de la cellule d'entrée.

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