The present invention in the case where the configuration of the line as the packet transmission system in the integrated delivery system that can change dynamically, relates to a device operation management subsystem and method for maintaining the management component.; Device operation management subsystem in the integrated transmission system according to the invention, integrated with an acceptable signal from the delivery system, the apparatus has the object associated with equipment of the state control function of the hardware constituting the signal configuration and management; And device failure management unit that reports to recognize the failure of the network and a network element made up of the integrated delivery system, performs the functions related to the diagnosis and recovery efforts; And the device capability management unit that performs the evaluation and reporting of the performance of the network and a network element; Non-volatile memory for the restart of the non-volatile delegate functions to perform ongoing maintenance function of the required information; The device connection management unit for performing the setting, release and reporting for the connection of the network and a network element; And the transfer management section for performing the transfer and reporting of the network and a network element; Layer 2 service unit and for performing a function configuration of the layer 2 connections to the network and a network element; Operator connection that provides management features to help the operator to direct and change management elements; Internal communication unit that manages the standard communication connection with the network; And characterized by comprising using the information of the device configuration management unit dynamically configuration, fault, a delegate function for generating and maintaining the performance management component parts.
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