Design And Realization Of The Algorithm Of Traffic Matrix Estimation

With the fast development of Internet and the abundance of network traffic, thescale of network and traffic are increasing very much. But the current Internetprovides best-effort services only, the performance of some kinds of multimediatraffic transferring on no providing QoS network will descend. The providers ofnetwork traffic face more and more pressure, so the traffic engineering is veryimportant. This paper is written on the project of "the algorithm of traffic matrixestimation" in the traffic engineering. The system is based on the Network Simulator2, to get the network topology and data before the experiments, to validate thealgorithm after the experiments;I build the experiment structure through the currentresearch and some theories about it;then complete the off-line algorithm of trafficmatrix estimation using Java;after many simulating experiments I validate, compareand improve the algorithm, and give some support to the further research.This paper analyzes the current research actuality. Introduces the appearing anddeveloping of traffic engineering, the meaning of it, and some basic theories about it.Makes some research on the existing algorithm about traffic matrix estimation.Analyse the Gravity Model and some other math models. Based on the actualexperiment environment and related theoretic research, use the Network Simulator 2to build the experiment structure. Input network topology structure and link load data,use the algorithm of traffic matrix estimation to compute the traffic matrix, throughdifferent network structure and link data, compare and improve the algorithm, thengive the further research plan.