针对真实网络业务的自相似性问题 ,分析了 CERNET网络业务数据 ,证实 CERNET网络业务具有典型的自相似性 ,并用这些数据对自相似业务下的队列系统性能进行了仿真研究 ,结果表明 ,定标律对理解自相似性给网络性能带来的影响具有重要意义 . In view of the self-similarity problem of real network service, this paper analyzes the business data of CERNET network and proves the typical self-similarity of CERNET network service. With these data, the performance of queue system under self-similar service is simulated. The results show that scaling The law is of great importance to understand the impact self-similarity has on network performance.