Method and device for database synchronisation in network management system

Abstract

The management information database (MIB) of the network manager (NM) 200 and the network elements (NE) 220-22N each store management information and a database identifier indicating an update history of the management information. The database information is updated every time the NM 200 sets up or processes each of the network elements. When visiting the NE later, when the management information database in the NM is replaced by backup data, compare the database information stored in each NM and NE, and when there is a difference, upload the management information stored in the NE, and use the management information to update the management of the NM information to synchronize MIB and NE management information. The NE is then canceled as a database information comparison candidate. In addition, in the case where the access from the network manager to the network element involves recovery from any failure, the necessity of the access check is judged in the judgment step of the necessity of the matching check, and, if any difference is found in the above-mentioned comparison and sorting step , it is determined that the data stored in the operation database is appropriate, and the data in the network unit is modified by downloading the data in the operation database.

Description

technical field [0001] The present invention relates to a synchronization method and device for a management information database (hereinafter referred to as MIB) in a network management system (hereinafter referred to as NMS). In more detail, the MIB is a database storing data for a network manager (hereinafter referred to as NM) to control a plurality of network elements (hereinafter referred to as NE) connected to a communication network. The present invention relates to a method and a device for reloading pre-saved MIB backup data when the content of the MIB is destroyed or changed for some reason, and also synchronizing these data with the current information of each NE. Background technique [0002] In the prior art, a message format or a communication protocol is prescribed in advance in a communication network to which a plurality of NEs are connected, and by means of these standards, an NMS manages various configuration settings and controls of a plurality of NEs co...

AI Technical Summary

Problems solved by technology

Surveillance of all operator memory or hard copy recording paper is not possible, failure to do so is due to mishandling

Especially in a large-scale communication network in which the state of each NE is changed at a high frequency, there arises a problem that NEs whose management information is inconsistent occur at a large rate despite frequent collection of backup data , it is difficult to manage

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