几种网络拓扑搜索方法的分析研究

Analysis and Research of Some Network Topology Searching Methods

文中旨在帮助人们在不同的网络拓扑要求和网络条件下选取合适的网络拓扑搜索方法。通过对网络层次、实用范围、拓扑粒度等方面进行分析比较,发现每种方法都不能对网络中所有设备完整准确地搜索,均各有其适用的范围、优点和局限性。若不能发现详细准确的网络信息,仅对网络的增长感兴趣,可选用基于DNS协议路由表的拓扑搜索;而用于发现网络中的主干拓扑,反映网络的整体状况,可选用基于SNMP协议网络拓扑搜索;对网络设备均支持OSPF协议且能动态地检测和报告网络拓扑的局部变化,可选用基于OSPF协议的网络拓扑搜索。所以在实际应用中应根据需要将多种技术有选择地结合来共同完成。

This text is for purpose of helping people to choose suitable network topological searching method under topological requirement and network terms in different network.Through analysing and comparing about the respects,such as level of the network,practical range,topological grain size,etc.,find that each kind of method can't search for all equipment in the network intactly accurately.There are its suitable range,merit and limitation.If can't find the detailed and accurate network information,is only interested in the growth of the network,can select the topological search based on DNS agreement route form for use;And is used for finding that the backbone in the network is topological,reflect the whole state of the network,can select for use and search for topologically on the basis of SNMP agreement network;Supports OSPF agreement to the network equipment and can measure and report the topological some change of network dynamically,can select the network based on OSPF agreement for use to search for topologically.So should combine many kinds of technologies selectively to finish together according to the need in the practical application.