SNMS网管系统事件模块的优化设计及故障定位算法研究

发布时间：2018-05-20 07:34

本文选题：故障管理 + 简单网络管理协议　；参考：《华南理工大学》2014年硕士论文

【摘要】：随着计算机技术及Internet的发展，，网络规模的不断扩大，网络安全稳定的运行变得尤其重要。然而在网络运行中，网络中的网元会产生各种各样的网络事件，这些事件潜在地展示了网元的运行状态和行为，有效地监视这些网络事件是实现网络管理的重要保障。因此，建立完善的网络故障管理系统保证计算机网络高效、稳定地运行显得非常重要。本文通过研究网络故障管理的基本需求和功能、简单网络管理协议SNMP和EJB的远程调用方法及相关技术，对已有的SNMS网管系统的事件模块进行了优化设计，设计实现了一种基于网络拓扑结构的故障定位算法。优化的系统基于B/S结构，设计实现了浏览器端的界面。浏览器端主要采用了jQuery技术，服务端主要采用了EJB技术，连接它们之间的通信技术主要采用了Ajax和Servlet技术。对于网络中出现的告警事件，本系统主要通过时间和空间两个域进行关联分析，以确定出最终的故障源。基于时间的关联分析主要是在一定的时间窗口内，对同一台设备在这段时间内产生的告警信息进行压缩、过滤、计数、抑止操作，以减少冗余。基于空间的关联分析是基于网络拓扑结构的故障定位的实现，确定出真正的故障源。优化的系统提供了可视化的操作界面，网络管理人员可以实时查看网络中出现的告警信息和关联分析处理后的故障信息，可以对这些告警信息进行过滤、删除等操作，也可以通过邮件的形式把告警信息发送给网络管理人员。系统还提供了对于告警信息的一些参数配置，比如事件类别、类型、严重程度等。系统优化之后的运行情况证明，优化的网络故障管理子系统，可以有效地支持校园网络的故障管理，同时，系统在部署上具有良好的可扩展性和灵活性。
[Abstract]:With the development of computer technology and Internet and the expansion of network scale, the safe and stable operation of network becomes more and more important. However, in the network operation, the network elements in the network will produce a variety of network events, these events potentially show the running state and behavior of the network elements, and effectively monitor these network events is an important guarantee to realize network management. Therefore, it is very important to establish a perfect network fault management system to ensure the efficient and stable operation of computer network. By studying the basic requirements and functions of network fault management, the remote call methods and related technologies of simple network management protocols (SNMP and EJB), this paper optimizes the design of event modules of existing SNMS network management systems. A fault location algorithm based on network topology is designed and implemented. The optimized system is based on the B / S structure and the browser interface is designed and implemented. The browser side mainly adopts jQuery technology, the server side mainly uses EJB technology, and the communication technology between them mainly uses Ajax and Servlet technology. For the alarm events in the network, the system mainly analyzes the relationship between time and space in order to determine the final fault source. The correlation analysis based on time is mainly used to compress filter count and suppress the alarm information generated by the same device in a certain time window in order to reduce redundancy. Space-based correlation analysis is the realization of fault location based on network topology to determine the true fault source. The optimized system provides a visual operation interface. Network managers can view the alarm information and the fault information after the association analysis in real time. They can filter and delete the warning information. Alarm information can also be sent to network managers by mail. The system also provides some parameter configuration for alarm information, such as event category, type, severity and so on. After the system is optimized, it is proved that the optimized network fault management subsystem can effectively support the campus network fault management, at the same time, the system has good scalability and flexibility in deployment.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.02

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