| 摘要 |
PROBLEM TO BE SOLVED: To perform priority control of data transfer corresponding to traffic characteristics by high-order application kinds for congestion inside an IP (internet protocol) router or network congestion. SOLUTION: A transfer priority decision means 1 decides transfer priority corresponding to the traffic characteristics of data from a high-order layer and an IP priority parameter setting means 3 maps the transfer priority to a precedence parameter 14 and sends out an IP packet 12 to the IP router 22. An IP packet abandonment control means 5 by the transfer priority checks the precedence parameter 14 and controls the abandonment of the IP packet 12 of low transfer priority and a Source Quench packet send-out means 6 informs the end system 21 of a transmission origin of the abandonment generation of the IP packet 12 by a Souce Quench packet 13. A TCP user data flow control means 2 by the transfer priority controls the transmission suppression of the TCP user data 11 of the low transfer priority. |
