Dynamic traffic conditioning

H - Electricity – 04 – Q

Patent

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Details

H04Q 11/04 (2006.01) H04L 12/56 (2006.01) H04L 29/08 (2006.01)

Patent

CA 2275407

Multi-media networks will require that a data flow be given certain quality-of- service (QOS) for a network connection but pre-negotiation of this sort is foreign to the current data networking model. The real time traffic flow in the data network requires distinct limits on the tolerance to delay, and the variations in that delay. Interactive voice and video demand that the total delay does not exceed the threshold beyond which human interaction is unacceptably impaired. The present invention allows the network to discover the nature of the service for each traffic flow, classifies it dynamically, and exercises traffic conditioning by means of such techniques as admission control and scheduling when delivering the traffic downstream to support the service appropriately.

Des réseaux multimédias exigeront qu'une certaine qualité de service soit conférée à un flux de données pour une connexion au réseau, mais des prénégociations de ce type sont étrangères au modèle actuel de mise en réseau de données. Le flux de trafic en temps réel dans le réseau de données requiert des limites distinctes concernant la tolérance de retard, et les variations de ce retard. La voix et la vidéo interactives exigent que le retard total n'excède pas le seuil au-delà duquel l'interaction humaine est entravée de manière inacceptable. La présente invention permet au réseau de découvrir la nature du service pour chaque flux de trafic, classe dynamiquement le trafic et exerce le conditionnement de ce dernier au moyen de techniques telles que le contrôle et l'ordonnancement d'admission lorsque le trafic est livré vers l'aval, pour soutenir le service de manière appropriée.

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