基于移动代理的网络拓扑发现技术的研究  

Research on the Technology of Network Topology Discovery Based on Mobile Agent

作　　者：邓勇[1] 王汝传[1,2] 黄海平[1] 徐喜春[1] 

机构地区：[1]南京邮电大学计算机学院,南京210003 [2]南京大学计算机软件新技术国家重点实验室,南京210093

出　　处：《计算机科学》2008年第10期76-80,93,共6页Computer Science

基　　金：国家自然科学基金(60573141和60773041);江苏省自然科学基金(BK2005146);江苏省高技术研究计划(BG2004004,BG2005038,BG2006001);国家高科技863项目(2006AA01Z201,2006AA01Z219);南京市高科技项目(2007软资127);现代通信国家重点实验室基金(9140C1101010603);江苏省计算机信息处理技术重点实验室基金(kjs050001,kjs06006);江苏省高校自然科学研究计划(07KJB520083);南京邮电大学科研项目(NY206041)资助

摘　　要：随着Internet/Intranet的迅猛发展,网络结构日趋复杂,各种应用服务不断增多,网络规模也随之不断扩大,得到一个完整准确的网络拓扑结构图对于网络管理、网络优化、定位故障等应用越来越重要。国内在网络拓扑发现技术方面的研究仍处于初级阶段,因而必要性和紧迫性不容忽视。将移动代理这一分布式计算技术引入到网络拓扑发现领域,提出了基于移动代理网络拓扑发现算法,这种算法以TCP/IP网络管理体系为依托,将各种可以利用的协议和移动代理的特性有机地结合起来,旨在发现速度和发现准确度上有更高的要求。与传统的面向协议的方法不同,它是一种面向过程的方法,分层次地获得网络拓扑,该方法与网络分层结构相一致,能更好地体现网络层次。基于移动代理的网络拓扑发现方案不同于以往的拓扑发现算法,它体现了集中与分布的统一,适合于当今在地理上越来越分布的网络环境,具有很好的实用和研究价值。With the rapid development of Internet/Intranet and the wide applications of the network,the network structure is becoming complicated and the network scale is extended rapidly. Therefore, it＇s more and more important to get a complete and accurate topology structure map, which is used in these fields such as network management, network optimization and trouble shooting. The research on topology discovery technique is in its infancy in our country, so it＇s very necessary to considero its necessity and urgency. This paper introduces mobile agent technology into the field of network topology discovery and puts forward an algorithm of network topology discovery based on mobile agent. The algorithm integrates various of available protocols with characteristics of mobile agent, which can enhance the speed and accuracy of network topology discovery. Different from the traditional methods which are protocol oriented, the algorithm based on mobile agent is process oriented. It is the same as the network architecture. Therefore it can help incarnate network layers. This scheme is different from the traditional topology discovery algorithms, which is unify of centralization and distributing. It is also suitable for network environment which is more and more distributed geographically, from these it can be seen that the scheme has practicality and research value very much.

关 键 词：移动代理 拓扑发现 网络管理 简单网络管理协议 

分 类 号：TP393[自动化与计算机技术—计算机应用技术] P208[自动化与计算机技术—计算机科学与技术]