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Abstract

A method of synchronization applied to databases of a network management system which establishes synchronization between a database of a managing system and a database of a managed system, and thereby facilitates the establishment of an initial database and reconfiguration of the same. The method (i) establishes a database based on a management information tree modeled on the system configuration for a network element NE forming a managed system, (ii) transfers an upper layer managed object instance information of the management information tree to an operation system OS of the managing system autonomously or by issuance of a command, (iii) starts, by the operation system OS of the managing system, the establishment of the database by the upper layer managed object instance data, (iv) demands, by this operation system OS, information of a lower layer managed object instance subordinate to the upper layer managed object instance, (v) sends, by the network element NE of the managed system, the lower layer managed object instance information to the managing system, and (vi) establish, by the managing system, the database using the thus sent information.

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