网络拓扑发现技术是网络管理中的一项基本功能。正确的网络拓扑信息和直观的网络拓扑图能够直接有效地为网络管理人员提供整体性的网络结构和状态。如何快速、准确地获取网络拓扑信息是当今各网络机构共同关注的问题。本文就是研究网络拓扑发现技术和构造网络拓扑图的技术。-Network topology discovery in network management technology is a basic function. Correct network topology information and intuitive network topology to direct and effective network management to provide comprehensive and state of the network structure. How to quickly and accurately obtain information on network topology of the network of institutions in today' s issues of common concern. This article is to study the network topology discovery technology and network topology structure technology.