基于SNMP网络管理系统关键问题研究与实现

发布时间：2018-05-31 23:45

本文选题：网络管理 + SNMP协议　；参考：《电子科技大学》2014年硕士论文

【摘要】：在网络技术飞速发展的社会背景下,接入网络的信息基础设施的数量逐年增加,网络的结构变得更加复杂,规模也随之更加庞大。而病毒与网络攻击等问题,更使得网络管理变得越来越重要。基于这种情况,Internet体系结构委员会(IAB)制定了基于TCP/IP的网络管理协议-SNMP协议。简单网络管理协议(SNMP)作为TCP/IP协议簇的一部分,由于其简单实用性和易实现性,得到了设备厂商的广泛支持,已成为网络管理事实上的标准,应用范围十分广泛。本文介绍了网络管理系统的现状及研究意义,针对某省级气象系统网络管理的需求,通过分析、介绍SNMP协议,对系统的设计提出了设计方案,并对主要使用的技术进行了介绍,实现了一个基于SNMP协议的网络管理系统。对开发中遇到的重点和难点问题进行了分析和解决。针对网络拓扑方面的应用需求,设计实现了一种基于SNMP代理机制的三层网络拓扑发现方法;应用“多种方式,准确发现”的策略来保证设备发现的效率和准确性;通过分析设备变化后拓扑显示不准确的问题,设计出了一种“后台实时扫描”的服务程序来实现数据的实时更新。给出了基于SVG技术的图形化网络拓扑显示模型,使拓扑显示准确、美观,并能实现拖动和超链接的功能。最后,对实现的网络管理系统进行了测试,总结了不足之处。项目已经通过了验收,运行良好,基本达到了预期目标。
[Abstract]:With the rapid development of network technology, the number of information infrastructure connected to the network is increasing year by year, and the network structure becomes more complex and the scale becomes larger. And virus and network attack and so on, make network management become more and more important. Based on this situation, the TCP/IP based network management protocol (SNMP) was developed by the Internet Architecture Committee (IAB). As a part of TCP/IP protocol cluster, simple Network Management Protocol (SNMP) has been widely supported by equipment manufacturers because of its simplicity and practicability. It has become the de facto standard of network management and has a wide range of applications. This paper introduces the status quo and research significance of network management system. According to the demand of network management of a provincial meteorological system, this paper introduces the SNMP protocol through analysis, puts forward the design scheme of the system, and introduces the main technology used. A network management system based on SNMP protocol is implemented. The key and difficult problems encountered in the development are analyzed and solved. According to the application requirements of network topology, a three-layer network topology discovery method based on SNMP proxy mechanism is designed and implemented, and the strategy of "multiple ways, accurate discovery" is applied to ensure the efficiency and accuracy of device discovery. By analyzing the problem of inaccurate topology display after equipment change, a kind of "background real-time scanning" service program is designed to realize the real-time updating of data. This paper presents a graphical network topology display model based on SVG technology, which makes the topology display accurate and beautiful, and can realize the functions of drag and hyperlink. Finally, the network management system is tested and the shortcomings are summarized. The project has passed the acceptance inspection, running well, basically reached the expected goal.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.07

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