基于SNMP的远程网络拓扑发现方法  

A SNMP-based algorithm for remote network topology discovery

作　　者：周智[1] 寇晓蕤[1] 罗军勇[1] 

机构地区：[1]信息工程大学信息工程学院,河南郑州450002

出　　处：《计算机应用》2006年第4期961-962,973,共3页journal of Computer Applications

基　　金：国家863计划项目资助(2001AA146010)

摘　　要：提出并实现了基于简单网络管理协议(SNMP)的大型异构IP网络拓扑发现方法,该方法包括代理发现、拓扑信息探测和拓扑信息分析三个步骤。对代理发现中的探测报文构造、去除冗余信息、信息分析算法以及非转发设备信息利用等关键问题进行了讨论,针对探测时遇到的路由器间歇性不响应、路由器过长时间不响应和探测目标为子网络号等问题进行了分析并给出了解决方案。工程实现结果表明,该方法可以高效地获取较为丰富的拓扑信息,与traceroute路径探测结合使用,可以极大地提高拓扑发现结果的完整性。A kind of SNMP-based method was proposed to discovery large-scale heterogeneous IP network topology, which includes Agent discovery, toplogieal data collection and analysis. The main idea in the process of Agent discovery such as construction of packet, elimate redundant data, analyse algorthim and using not-forwarding device-based data was discussed. A solution was given to the intermittent router non-responsiveness, prolonged router non-responsiveness and net number-based target address. The result of the experiment illustrates that the method can capture amount of topology information efficiently. Unit SNMP with traeeroute can improve the integrity of topology discovery obviously.

关 键 词：简单网络管理协议 远程网络拓扑发现 Internet控制消息协议 

分 类 号：TP393.02[自动化与计算机技术—计算机应用技术]