Module for oam handling of atm cells of a cell flow on...

H - Electricity – 04 – Q

Patent

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Details

H04Q 11/04 (2006.01) H04L 12/24 (2006.01) H04L 12/56 (2006.01)

Patent

CA 2307338

The invention relates to a module for processing ATM cells of a cell flux on virtual channels (VCC A, VCC B, VCC C) or on a virtual path (VPC P) which is arranged in order to insert OAM specific cells by means of an OAM cell generator (OZG). The inventive module comprises a cell filter and processing unit (ZFV) to which the arriving cell stream (ZI) is fed. The module also comprises a linking data memory (VSP) connected to the cell filter and the processing unit (ZFV), and a scanning unit (SCAN) connected to the linking data memory (VSP). A controller (ST) is assigned to said scanning unit. In addition, the module has an intermediate buffer (OBUF) whose input is linked to the output of the OAM cell generator (OZG) and to a multiplexer (MULT). The output of the cell filter and processing unit (ZFV) in addition to the output of the intermediate buffer (OBUF) are fed to said multiplexer (MULT).

L'invention concerne un module pour traiter des cellules MTA d'un flux de cellules sur des canaux virtuels (VCC A, VCC B, VCC C) ou sur une voie virtuelle (VPC P), ledit module étant conçu pour insérer des cellules spécifiques EAG au moyen d'un générateur de cellules EAG (OZG). Ce module comprend une unité de filtrage et de traitement de cellule (ZFV) à laquelle est acheminé le flux de cellules arrivant (ZI), ainsi qu'une mémoire de données de liaison (VSP) communiquant avec l'unité de filtrage et de traitement de cellule (ZFV). Ce module comprend également une unité de balayage (SCAN) communiquant avec la mémoire de données de liaison (VSP), une commande (ST) étant affectée à ladite unité de balayage. Le module comprend en outre une mémoire tampon (OBUF) dont l'entrée est raccordée à la sortie du générateur de cellules EAG (OZG), ainsi qu'un multiplexeur (MULT) auquel sont acheminées la sortie de l'unité de filtrage et de traitement de cellule (ZFV) et la sortie de la mémoire tampon (OBUF).

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