PATH SWITCHING METHOD AND COMMUNICATION NETWORK MANAGEMENT SYSTEM

• Main Authors: HARA KAZUHIKO, KUBOTA ATSUNORI, SAKAE KOZO, TANEDA KENJI
• Format: Patent
• Language: English
• Published: 02.07.2004
• Edition: 7
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

PROBLEM TO BE SOLVED: To shorten the switching time while securing the reliability of a path by confirming the normality of the path at a switching destination within a possible range before switching. SOLUTION: In this path switching method for switching a VP (virtual path) to be a communication path between two nodes of a communication network according to a switching instruction including VP information of a predetermined switching destination, a non-common part between a VP at a switching origin and a VP at the switching destination is derived (S1) by comparing both VPs with each other, and a conduction test before the switching is performed for the derived non-common part in the VP at the switching destination (S2). When a result that the non-common part in the VP at the switching destination is normal is obtained, the switching from the VP at the switching origin to the VP at the switching destination is performed by cross connection (S4) and the VP at the switching origin is abolished (S5) after completion of the switching. COPYRIGHT: (C)2004,JPO&NCIPI