网络流量自相似性的影响因素

A Research on the Factors Influencing Network Traffic Self-Similarities

网络流量特征是分析和研究网络性能、规划网络建设的基础.网络流量研究中关键的问题是如何合成网络真实流量并进行分析,由于自相似模型能够更加真实地描述网络传输的特性,因此,本文通过生成自相似性的流量进行仿真研究,对自相似现象的成因进行了解释,提出将源端流量自相似性与网络传输的TCP协议相结合进行研究的方法,探讨了影响自相似流量的因素,了解了网络行为随参数变化的情况,对新一代网络的设计、控制、分析和管理具有实际意义.

The nature of network traffic is the basis of studying and analyzing network performance as well as planning network construction.The key to network traffic research is how to sum up and analyze the real traffic.Based on the prerequisite that self-similarity models can better describe the features of network transmission,this paper conducts simulated studies by generating self-similar traffics,elaborates the formation of self-similarity,proposes a research method of integrating traffic self-similar source with TCP protocol,describes the cause of network traffic self-similarity,and observes the fact that network performance varies with change of parameters,which has practical significance in the design、control、analysis and management of NGN（new generation network ）.