导　　师： 李杰

学科专业： 081203

授予学位： 硕士

作　　者： ;

机构地区： 中南大学

摘　　要： 随着计算机网络规模不断扩大、复杂性不断增加以及异构性越来越普遍使得网络管理越来越困难,将主动网络技术应用于网络管理是当前网络管理研究的热点之一。 针对目前网络中不具备主动能力的传统SNMP节点不可能完全被替换的现状,本文结合主动网络思想和SNMP管理技术,提出了一种混合网络管理模型,该模型能够兼容主动节点和非主动节点共存的情况,并且不需要加入第三方软件或主动处理平台。根据提出的模型,描述了其主要组成部分,其中包括网络管理工作站、主动节点、封装体。定量地分析比较了该模型和其他两种模型的优缺点。 在主动网络故障诊断模块中,在分析总结当前主动网络故障诊断技术的基础上,把自测和互测两种方法结合起来,将三值诊断模型应用到主动网络故障诊断管理中来,提出了基于三值模型的AN故障诊断模型,并描述了其算法,该模型一定程度上提高了系统的可靠性以及诊断结果的准确性。 在主动节点性能方面,深入研究了包分类算法,将规则以及规则中的域都应用优先级匹配原则,对线性搜索算法进行了改进,改进后的算法加快了对信包和规则的匹配速度,缩短了包分类时间,并做了时间复杂度的比较。 The growing size, increasing complexity and generalized isomerization of computer network have brought difficulty in network management. The application of active network in the network management has become one of hot topics in research on the network management. Since traditional SNMP nodes without active capacity in the current network can not be completely replaced, the thesis combines the idea of active network and the technology of SNMP management, proposes a hybrid network management model, The model permits the coexistence of active nodes and non-active nodes, and no third software or active processing platform is needed. Besides, the thesis describes the main components of the model, which comprise workstations, active nodes and packaging bodies of the network management. The advantages and disadvantages of the model and other two models are quantitatively analyzed and compared. In the fault diagnostic module of the active network, the thesis analyzes and summarized the current fault diagnostic technology, combines the self-testing and mutual testing methods, and applies the three-value diagnostic model to the fault diagnostic management of the active network. And it presents an AN fault diagnostic model based on the three-value diagnostic model and describes the algorithm. The model enhances the reliability of the system and the accuracy of the diagnosis. As for the structural performance of the active nodes, the thesis examines the packet classification algorithm, and the matching principles of priority levels are applied in the regular and irregular domains. The linear search algorithm has been improved. The improved algorithm accelerates the matching between the information packages and rules, shortens the packet classification time, and compares the time complexity.

关 键 词： 主动网络 混合网络管理 三值故障诊断 包分类算法

分 类 号： [TP393.07]

领　　域： [自动化与计算机技术] [自动化与计算机技术]