空間站交換單元調度算法及隊列管理的設計與實現.pdf

1、西安電子科技大學碩士學位論文空間站交換單元調度算法及隊列管理的設計與實現姓名：張雅喬申請學位級別：碩士專業(yè)：通信與信息系統(tǒng)指導教師：邱智亮20100101ABSTRACTAstheswitchingfabrichasasignificantimpactontheperfmanceoflocalareawkinspacestationitcannotonlyensureasystemwkintherightwaybutalsoreduce

2、hardwareresourcespoweraswellasincreasesystembwidththroughputeffectively.Sotheswitchingfabircoflocalareawkinspacestationisakeytechnologyinthesystemresearchdesignprocess.FtheethermaturityflexibilityinwkingaswellasQoSassura

3、ncehardredundancysupptedbyAFDXbasedontheresearchproject“ResearchimplementationofHighPerfmanceSwitchinSpaceStation”weproposeafeasiblewkswitchingfabricthatis2424threestageClos（6，4，6）switchingfabricinMSMmodewhichcanprovideb

4、othetherAFDXservices.FirstlytheconceptionsactersofswitchingetherrelatedknowledgewkingactersaboutAFDXareintroducedinthisthesis.ThentheprinciplesstepsofCRRDschedulingalgithminthreestageCloswkisdeeplyanalyzed.Secondlythegen

5、eraldesigndataprocessingflowsofswitchingfabricinspacestationareexplained.ThirdlythespecificdesignsofschedulingalgithmqueuemanagementinswitchingunitaredescribedinthenexttherealizationofCRRDschedulingalgithminpacketmode（CR

6、RDPM）basedontimeslotsharingmemyqueuemanagementwithDPRAMareparticulardescribed.SeveralkeymodulesinschedulingqueuemanagementsuchasRx_Central_SchedulerInput_SchedulerMatching_ModuleTx_Central_SchedulerOutput_SchedulerIn_Que

7、ue_ControllerOut_Queue_Controllerarepresentedimplementedinthethesis.FinallytherealizationsofschedulingalgithmqueuemanagementaresimulatedbyModelsim.Theanalyzingresultsprovethatthedesignisaccuratereasonablefeasibleasawhole