CONGESTION EVALUATION METHOD IN WIDE-AREA INFORMATION SYSTEM, CONGESTION EVALUATION APPARATUS, CONGESTION EVALUATION PROGRAM AND RECORDING MEDIUM WITH THE PROGRAM RECORDED THEREON

摘要

PROBLEM TO BE SOLVED: To provide an evaluation system for evaluating a congestion state beforehand by monitoring a queuing amount in a reception server.;SOLUTION: The present invention relates to a method of evaluating congestion between a transmission source node and a transmission destination node. A standard normal type probability density function: 1-Φ(d) is executed to calculate a value of a packet number acquisition probability, until a predetermined time, in a transmission queue of the transmission source node and if the above value exceeds a predetermined reference value, it is evaluated as a congested state.;COPYRIGHT: (C)2006,JPO&NCIPI