Patent ID: 6898641

Claim:
A network routing system in a network having a first routing apparatus to which one or more first communication devices are connected, and a second routing apparatus to which one or more second communication devices are connected, wherein said network routing system reserves a network resource using a service quality set-up protocol between said first routing apparatus and said second routing apparatus; wherein said first routing apparatus comprises first service quality set-up processing unit for reserving said network resource using said service quality set-up protocol; first packet classification processing unit for classifying a specific packet that is to be transmitted using the reserved network resource from among a plurality of data packets transmitted from said first communication device; bit sequence setting unit for setting a predetermined bit sequence for said specific packet classified by said packet classification processing unit; and first transfer processing unit for transferring said specific packet having the bit sequence set by said bit sequence setting unit to said second routing apparatus, using said network resource corresponding to a content of the bit sequence contained in the specific packet; and wherein said second routing apparatus comprises: second service quality set-up processing unit for reserving said network resource using said service quality set-up protocol; second packet classification processing unit for classifying the specific packet having appended the bit sequence indicating transmission using said reserved network resource from among a plurality of input data packets; bit sequence deleting unit for deleting the bit sequence contained in the specific packet classified by said packet classification processing unit; and second transfer processing unit for transferring the data packet having the bit sequence deleted by said bit sequence deleting unit to said second communication device.