Proposes an improved new algorithm of polling algorithm,and the improved new algorithm is emulated through the OPNET simulation software in the band-width availability respect. The simulation results indicate that the improved algorithm increases greatly the bandwidth utilization rate.% 提出了一种改进 EPON 轮询带宽算法的新方法，并利用 OPNET 仿真软件对新算法在带宽利用率方面进行了仿真。仿真结果表明，新算法较大地提高了带宽利用率。
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