Method for realizing backpressure of masses of ports and...

H - Electricity – 04 – L

Patent

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H04L 12/56 (2006.01)

Patent

CA 2675930

A method for realizing back pressure of masses of ports and the device realizing the method are provided. It is belong the technical field of network prots back pressure control. The method for realizing back pressure of masses of ports comprises steps: detecting whether the user's data transmited to the channelizing physical port reaches to the back pressure threhold or not, when the back pressure threshold is reached, generating an idle frame or a series of idle frames; after combining the idle frame and the user's data which needs to be transmitted to the channelizing physical port reaching the back threshold, the combined data is transmitted; before the said combined data enters into the channelizing physical port, the idle frame is dropped. The invention ueses the idle frame to realize the back pressure, the idle frame takes up some of transmiting broadband, and reduces the bandwidth of the user's data, but the idle frame doesn't enter into the physical port,therefore reaches the aim of back pressure. The bandwidth of the idle frame can be pre-configured based on the need. After the idle frame is generated, its bandwidth can be increased or reduced smoothly according whether the back pressure is exist or not, and its control is very easy and facility.

L'invention concerne un procédé d'application de contre-pression massique de ports, et un dispositif associé. Il relève du domaine technique du réglage de la contre-pression de ports de réseaux. Le procédé consiste à: détecter si les données utilisateur transmises au port physique d'extrémité de voies atteint le seuil de contre-pression ou non lorsque ce seuil est atteint; générer une trame passive ou une série de trames passives; combiner et transmettre la trame passive et les données utilisateur devant être transmises au port physique d'extrémité de voies ayant atteint le seuil de contre-pression; abandonner la trame passive avant que les données combinées ne pénètrent dans le port physique d'extrémité de voies. Selon l'invention: la trame passive est exploitée pour obtenir la contre-pression; la trame passive utilise une partie de la bande large d'émission et réduit la largeur de bande des données utilisateur. Toutefois, la trame passive ne pénètre pas dans le port physique, ce qui permet d'atteindre l'objectif de contre-pression. La largeur de bande de la trame passive peut être préconfigurée selon les besoins. Après génération de la trame passive, sa largeur de bande peut être augmentée ou réduite ravec souplesse, selon que la contre-pression existe ou non, ce qui facilite considérablement son réglage.

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