Deferred queuing in a buffered switch

Details Deferred queuing in a buffered switch Deferred queuing in a buffered switch

H - Electricity

04

L

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

Patent

CA 2470758

A method and apparatus for temporarily deferring transmission of packets/frames to a destination port in a buffered switch is disclosed. When a request for transmission of at least one packet/frame to the destination port is received, it is determined whether the destination port is available to receive the at least one packet/frame. The transmission of the at least one packet/frame is deffered when the destination port is not available to receive the at least one packet/frame. The packet/frame identifier and memory location for each deferred packet/frame is stored in a deferred queue and the process then repeats for the next packet/frame. Periodically, the apparatus attempts to transmit the packets/frames in the deferred queue to their respective destination ports.

Cette invention concerne un procédé et un dispositif permettant de différer temporairement la transmission de paquets/trames vers un port de destination dans un commutateur à tampon. A la réception d'une demande de transmission d'au moins un paquet/trame vers un port de destination, on détermine si le port de destination en question est disponible pour la réception d'au moins ce paquet/trame. L'identificateur de paquets/trames et l'emplacement de chaque paquet/trame retardé sont stockés dans une file d'attente différée. Le processus se répète ensuite jusqu'au prochain paquet/trame. Le dispositif tente périodiquement de transmettre les paquets/trames qui se trouvent dans la file d'attente différée vers leurs ports de destination respectifs.

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