基于SNMP的网络层网络拓扑算法改进研究

摘要

网络拓扑发现的主要目的是获取和维护网络节点的存在信息及它们之间的连接关系信息,使网络管理员可根据此信息对故障进行快速定位。本文介绍了拓扑发现的现状并对网络拓扑发现方法作了研究,阐述了简单网络协议（SNMP）的原理和特点,分析了现有OSI第三层SNMP算法的不足,在此基础上提出改进后拓扑算法。%Network topology discovery's main purpose is to acquire and maintain the existence of the network node information and their connections between information,so that network administrator can be according to the basic fault fast positioning.This paper introduces the present situation of topology discovery and network topology discovery methods research and analysis,expounds the based on simple network protocol(SNMP) principle and characteristics and application in the OSI structure of the third layer,analysis of the existing OSI layer 3 based on SNMP algorithm deficiency,and based on this,puts forward the improved topology software algorithm.