| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an end-to-end communication quality warranty system capable of warranting a bandwidth and information transfer quality of a communication path under end-to-end depending on a difference from an access means to a communication network and wherein a relay node can easily obtain a link bandwidth to be allocated to traffic of each quality class. <P>SOLUTION: In the end-to-end communication quality warranty system, each of edge nodes 11 to 14 stores an allocation bandwidth table wherein a relationship among quality classes, a total sum of accommodated communication path badwidths belonging to the quality classes, and out-link bandwidth to be allocated to the quality classes is indicated corresponding to out-links. When a communication path setting request under end-to-end arises, a quality class wherein the total sum of information transfer qualities between the edge nodes satisfies information transfer quality being a requirement between the edge nodes is selected, a communication path of the quality class selected for the communication path whose setting is requested is established or rejected by utilizing the allocation bandwidth table. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
