Research And Implementation Of Rule Based Alarm Correlation In Multi Equipment System

Today, with the booming development of telecommunication industry, the telecommunication network management technology tends to be comprehensive, distributed and intelligent. As a prevailing international standard architecture of telecommunication network, Telecommunications Management Network (TMN) has been widely adopted by more and more network management system. TMN is presented by ITU-T measuring up the M.3010 series standard. In part, it inherited the some ideas of the OSI, such as the concept of Manager and Agent, which reflects the idea of the separation between the management network and the managed network, and the idea of the hierarchical management, and also realizes the effective management on fault, configuration, performance, safety and accounts.Fault management is one of the most basic functions of network management. In the network management of telecommunication, the large amount of alarm is the key factor influencing the capability of the network management and the stability of the system. So the implementation of the fault management system is the main problem in the expanding of the network scale. The introduction of the alarm correlation module solves the problem of the large amount of data, and avoiding the possibility of the fault management system becoming the bottleneck of the capability.On the basis of the implementation necessity of alarm correlation in TMN, in this thesis, several methods that implement the alarm correlation at home and abroad are compared, and the existed technology and production also introduced. By analyzing the strongpoint and shortcoming of these methods, the rule-based method is used. According to the characters of the network management of the telecom, the alarm correlation module is designed and realized, which solves the problem in the practical project. During the implementation of the system, there are three main problems. The first one is the choice of rules engine and ILOG JRULES is selected at last; the second one is the refining of the public business rules, which is solved by researching all the departments in the company and analyzing thebusiness; the third one is designing of the alarm correlation flow, which is solved by analyzing the implementation of the alarm correlation modules of Hp Company and CDMA enterprise.