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网络断层扫描技术不需要网络内部节点的配合,通过网络外部端到端的测量来推断内部特性。多源断层扫描技术可获得更多的网络内部链路信息,能够更精准的得到网络的拓扑结构。该文重点论述了多源网络断层扫描技术,将多源网络划为几种2-by-2结构,并通过一种根据hamming距离的链路利用率算法得出了网络拓扑结构。通过仿真实验证明了该方法的精准性。
Network tomography does not require the cooperation of internal nodes in the network to infer the internal characteristics through the external end-to-end measurement of the network. Multi-source tomography can get more information about intra-network links and get a more accurate topology of the network. This paper focuses on the multi-source network tomography, the multi-source network is divided into several 2-by-2 structure, and through a hamming distance link utilization algorithm derived network topology. The simulation experiment proved the accuracy of this method.