Method and apparatus for diagnosing a fault in a network path

Multiplex communications – Diagnostic testing – Fault detection

Reexamination Certificate

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C370S248000

Reexamination Certificate

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07983174

ABSTRACT:
A method of diagnosing a fault in a network path comprises the steps, performed at a diagnosing node, of initiating a path discovery test. The diagnosing node receives at least one path discovery test response and identifies the diagnosable node on the network path from a path discovery test response. The diagnosing node remotely accesses said diagnosable node and performs a diagnostic routine at said diagnosable node.

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