Patent ID: 6798743
Filing Date: 2004-09-28
Classification: H04L

Abstract:
A method for routing traffic in a packet-switched, integrated services network which supports a plurality of different service classes, the network including at least one router, the router including at least one input interface having at least one input interface and at least one output inter, the method comprising:preprocessing a first packet from said input interface to determine if said fast packet is delay sensitive, wherein said preprocessing includes classifying said fist packet; storing said first packet in an intermediate data structure before fully processing said first packet in response to a determination that said first packet is not delay sensitive, said intermediate data structure being used for queuing packets which have been preprocessed but which have not yet been processed sufficiently to be routed to an output interface queue; preprocessing a second packet from said input interface while said first packet is queued in said intermediate data structure; and fully processing said second packet while said first packet is queued in said intermediate data structure in response to a determination that said second packet is delay sensitive, said fully processing including processing said second packet sufficiently to enable the second packet to be routed to an appropriate output interface queue.