VP CHANGEOVER METHOD AND VP CHANGEOVER NODE

PROBLEM TO BE SOLVED: To provide a VP changeover control method and device where a fault in a duplex virtual path VP segment is reliably detected in an ATM network and an active system VP is quickly switched into a standby system VP. SOLUTION: A changeover end node device 10 for a duplex VP segment...

Full description

Saved in:
Bibliographic Details
Main Authors IWAMURA ATSUSHI, NOGI HIROO, MATSUO MINEHIRO, ASHI MASAHIRO
Format Patent
LanguageEnglish
Published 30.05.2000
Edition7
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
Online AccessGet full text

Cover

More Information
Summary:PROBLEM TO BE SOLVED: To provide a VP changeover control method and device where a fault in a duplex virtual path VP segment is reliably detected in an ATM network and an active system VP is quickly switched into a standby system VP. SOLUTION: A changeover end node device 10 for a duplex VP segment transmits control cells for a VP monitor and state notice to both an active system VP and a standby system VP at a prescribed period, monitors the reception state of a control cell from an opposite node and discriminates a VP fault when reception of the control cell is interrupted for a prescribed interval. On the occurrence of a fault in the active system VP, after confirming the normality of the standby system VP, a VP changeover request is sent to an opposite node and the VP is switched after awaiting a changeover reply.
Bibliography:Application Number: JP19980321709