摘要： 通过分析比较各种网络拓扑发现方法，提出一种面向网络态势感知、基于简单网络管理协议的实时网络拓扑发现算法，其中包含网络设备存活性判断、网络设备类型判断及网络拓扑信息的存储及处理等技术，与传统的网络拓扑发现相比，具有实时性高、发现准确等优点。实验证明该算法的可行性和准确性。

关键词: 网络态势感知, 网络拓扑, 实时发现

Abstract: By analyzing and comparing all kinds of domestic and overseas network topology discovery methods, this paper proposes a real-time network topology discovery algorithm based on Simple Network Management Protocol(SNMP), which is oriented network situation awareness. It concludes technologies of estimation of network device’ activity, estimation of network device’s type, storage and disposal of network topology information, and has the advantages of high real-time and accurate discovery compared with traditional ones. Experiment proves that the algorithm is feasible and accurate.

Key words: network situation awareness, network topology, real-time discovery

中图分类号: 

• TP393