Network node for sharing a common buffer among multiple...

Details Network node for sharing a common buffer among multiple... Network node for sharing a common buffer among multiple...

H - Electricity

04

L

H04L 12/56 (2006.01)

Patent

CA 2249556

A network node includes a single buffer connected to a transmission medium. Detection circuitry receives an incoming packet and detects the virtual connection of the received packet. Control circuitry calculates a value of delivery instant for the received packet according to a minimum bandwidth assigned to the detected virtual connection so that vacancy of the transmission medium is reduced to a minimum if the received packet were delivered from the buffer onto the transmission medium at the instant of the calculated value. The calculated value is compared with a decision threshold assigned to the detected virtual connection. The received packet is stored into the buffer if the calculated value is smaller than the decision threshold or discarded if the calculated value is greater than the decision threshold.

Noeud de réseau, comprenant un unique tampon connecté à un support de transmission. Des circuits de détection reçoivent un paquet et détectent la connexion virtuelle de ce dernier. Des circuits de commande calculent une valeur d'instant de transmission du paquet en fonction d'une largeur de bande minimale affectée à la connexion virtuelle détectée de sorte que l'inoccupation du support de transmission soit réduite au minimum si le paquet reçu est transmis à partir du tampon sur le support de transmission à l'instant de la valeur calculée. La valeur calculée est comparée à un seuil de décision affecté à la connexion virtuelle détectée. Le paquet reçu est stocké dans le tampon si la valeur calculée est inférieure au seuil de décision ou rejeté si elle est supérieure.

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