Patent ID: 6772373
Filing Date: 2004-08-03
Classification: H04L

Abstract:
A disorder detecting device arranged between high level equipment and low level equipment of a network, to transmit communication data between the high level equipment and the low level equipment in a manner to enable open systems interconnection (OSI), and to implement OSI protocols for the first layer or up to the second layer, comprising:a monitoring unit to monitor an upside-originated idle signal from the high level equipment and a downside-originated idle signal from the low level equipment using the protocol for the first layer; a disorder detecting unit to detect not only a disorder involving a component of the network but a disorder involving the disorder detecting device itself, based on the result obtained by the monitoring unit as a result of monitoring the upside-originated idle signal or the downside-originated idle signal; and a disorder notifying unit to notify fixed patterns correspondent with the disorders detected by the disorder detecting unit to the high level equipment or the low level equipment using the protocol for the first layer of the open systems interconnection.