Patent ID: 6246665
Filing Date: 2001-06-12
Classification: H04L,H04Q

Abstract:
A failure attending method for a fixed-length cell exchange system for handling fixed-length cells, including an exchange switch section, a main controller for said exchange switch section and a plurality of interface sections connected to input and output sections of said exchange switch section, comprising the steps of:a time of connecting a path to each interface section, affixing specific identification information about a facing unit to path information which indices a connection path to the facing unit so as to set said path:when a failure occurs in one of said plurality of interface sections, allowing said main controller to send specific identification information about said failed interface section to other interface sections than said failed interface section; andcausing each interface section having received said specific identification information about said failed interface section to send an alarm cell to a path which matches with said received specific identification information,wherein when said failed interface section is restored, and main controller informs other interface sections than said failed interface section of restoration; andeach of said informed interface sections stops sending said alarm cell.