基于SDN数据中心的流量调度算法研究

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1、密级无分类号ＴＰ３９３＇ＡＮＸＩＴＥＣＨＮＯＬＯＧＩＣＡＬＵＮＩＶＥＲＳＩＴＹ硕士学位论文题目：基于ＳＤＮ数据中心的流量调度算法研究作者：雷鸣指导教师：李静教授申请学位学科：通信与信息系统２０１８年５月１５日平均利用率、传输时延等方面验证了算法的性能。实验结果表明，在相同负载下，本文改进的多路径调度算法相较与传统调度算法，在提高链路利用率、降低时延等方面有较好的效果。能够改善数据中心大数据流量造成的网络拥塞问题。关键词：软件定义网络；数据中心；流量调度；

2、多路径Concerningtheconsistencyproblemencounteredintheflowtableupdate,weoptimizedtheflowtableupdateorderbyclassifyingswitchesandflowentriesandsolvedthedataretransmissionanddatapacketlosscausedbyflowtablemismatch.Finally,weusenetworksimulationsoftwaresuchasMinin

3、etandRyucontrollertosimulatethedatacenternetworkbasedontheSDNarchitectureandimplementtheimprovedmulti-pathschedulingalgorithmontheRyucontroller.Throughcomparisonexperiments,theaverageutilizationratefromthelinkthetransmissiondelayandotheraspectsverifytheperf

4、ormanceofthealgorithm.Experimentalresultsshowthatunderthesameload,theimprovedmulti-pathschedulingalgorithminthispaperhasbetterresultsinimprovinglinkutilizationandreducingdelaythantraditionalschedulingalgorithmsandcanimprovethenetworkcausedbylargedatatraffic

5、inthedatacenter.Congestionproblem.KeyWords:SDN;datacenter;Trafficscheduling;multipath目录1绪论.......................................................................................................................................11.1课题研究的背景与意义..................

6、..............................................................................11.2SDN流量调度研究现状................................................................................................21.2.1国外研究现状........................................................

7、.............................................21.2.2国内研究现状.....................................................................................................31.3论文主要研究的内容......................................................................................

8、..............41.4本章总结........................................................................................................................52SDN流量调度分析................................................