一种网络拓扑算法的研究和分析

网络拓扑是一种表达网络逻辑连接关系和物理连接关系的方法，对配置管理乃至整个网络管理都是十分必要的。论文首先对基于SNMP协议的网络拓扑发现算法进行了研究，接着在定义拓扑发现技术衡量指标的基础上，总结了基于SNMP拓扑发现技术的最佳使用环境。之后提出了具体的基于SNMP拓扑发现技术工具的实现方式，介绍了拓扑发现算法实现。对三层交换机的发现和指定子网内活动主机的发现作出了算法改进，并对一些关键技术的实现细节进行了分析。

An Algorithm of Network Topology Analysis Based on SNMP

Network topology is a logical connection between the network and physical connection between the expression methods,for both con- figuration management and the whole network management is necessary. Papers first algorithm for network topology discovery based on SNMP protocol was studied,then to define measures on the basis of the topology discovery technology,summed up the best use of topology discovery based on SNMP technology environment. Made after the specific topology discovery based on SNMP technical tools implementation,introduced the topology discovery algorlthm,on three--layer switch discovery and specify active host discovery made in the subnet has improved,and the implementation details of some key technologies will be analysed.