基于单播丢包层析技术的探测包发送机制

摘要

网络层析技术通过端到端测量就能推测网络的内部性能,无须网络中问节点配合,因此被广泛的应用于网络测量及诊断.对基于单播的网络丢包率层析成像模型进行了详细的探讨,并针对现有的单播层析发包方式的包组相关性缺陷提出了一种改进发包方法.通过NS2的仿真,证明了改进的发包机制能更加准确的估算网络丢包率.%Network tomography is a new technique to infer the network internal performance or logic topology only by end to end measurements. In this paper, in order to strengthen the correlation between probes and indeed improve inference accuracy, we propose a new probe-sending methods to get the internal loss rates. NS2 simulations demonstrate the feasibility of this tomography method.