| 摘要 |
<p>PROBLEM TO BE SOLVED: To efficiently monitor and control a network, to eliminate the generation of a high traffic state and to improve quality and reliability. SOLUTION: A response report issuance means 11 issues a response report A, a state change report issuance means 12 issues a state change report Di, and a state change information reporting means 13 reports state change information D to the issuance destination of a report start request Rst. A report start/ stop request issuance means 21 issues the report start request to one of these information provision devices and issues a report stop request Rsp to the other. When the response report A for the report start request Rst is not received, a report request replacement control means 22 performs control for replacing the report start request Rst and the report stop request Rsp and issuing them to the information provision devices. A state change information report request issuance means 23 issues the report request Rd of the state change information, and a state change information display control means 24 displays the state change information D.</p> |
