METHOD FOR PROVIDING SERVICE QUALITY FOR TRAFFIC SENSITIVE TO DELAY TRANSMITTED ON INTERNET NETWORK

摘要

PROBLEM TO BE SOLVED: To insure service quality for IP network transmission traffic. SOLUTION: An IP network path used for IP packet transmission between a transmission side edge device and a destination edge device is identified, and bandwidth is virtually supplied to voice traffic. It is secured to meet voice delay requirement of a high priority by allowing a connection request for a new voice call based on residual free capacity after giving a priority to a voice packet. Also, a VP server 230 maintains data about bandwidth capacity of each path segment in an IP network 205, the data of the bandwidth is supplied to a signaling gateway 250, it is allowed or rejected based on the quantity of empty bandwidth, and the decision of permission or rejection is notified to the transmission side edge device. Thus, guarantee about allowable delay and jitters can be attained without having to directly send a signal to respective IP routers constituting the IP network path.