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《面向云计算的数据中心网络体系结构设计.pdf》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、计算机研究与发展ISSN1000-1239?CN11-1777?TPJournalofComputerResearchandDevelopment49(2):286-293,2012面向云计算的数据中心网络体系结构设计王聪1王翠荣2王兴伟1蒋定德11(东北大学信息科学与工程学院沈阳110819)2(东北大学秦皇岛分校电子信息系河北秦皇岛066004)(congw1981@gmail.com)NetworkArchitectureDesignforDataCentersTowardsCloudComputing1,WangCui
2、rong2,WangXingwei1,andJiangDingde1WangCong1(SchoolofInformationScience&Engineering,NortheasternUniversity,Shenyang110819)2(DepartmentofElectronicInformation,NortheasternUniversityatQinhuangdao,Qinhuangdao,Heibei066004)AbstractInrecentyears,therapiddevelopmentofcloud
3、computingbringssignificantinnovationinthewholeITindustry,whichmakestheInternetchangefromtranslatinginformationdatatotranslatingservicedirectly.Incloudcomputing,enterprisesneedbuildtheirowndatacentersasprivacycloudsorthebackboneofpubliccloudtodeploynewInternetinforma
4、tionservices.Traditionalnetworkstructureandcontrolplanemechanismincurrentdatacentershavetheirowninherentlimitationsinnetworkcapacityandpricequality.Thecurrentpracticalitiesalsocannotsupportnetworkmultitenantingwhichisessentialforcloudcomputing.Therefore,thispaperpro
5、posesanoveldatacenterarchitecturewhichjustuseslow-costcommercialprogrammableswitchesandserverstobuildthedatacenternetworks;andalsogivesaflexiblevirtualnetworkbandwidthmanagementmechanismbasedonconvexoptimization,whichsupportsthecoordinatedworkbetweenprogrammableswit
6、chesand2.5layeragentsresidentinservers.Throughadynamicbandwidthallocationalgorithm,itcanprovidemorepreferablysupportstotheresourcevirtualizationwhichisverycommonincloudcomputingapplications.Experimentalresultsshowthattheproposeddatacenternetworkarchitecturecanreduce
7、thebuilding-costsignificantlyaswellasimprovethenetworkthroughputremarkably,andthatthevirtualnetworkmanagementmechanismprovidesaflexiblemannerinbandwidthallocation.Keywordsdatacenternetwork;cloudcomputing;bisectionbandwidth;networkthroughput;networkvirtualization摘要近年
8、来,云计算技术的蓬勃发展为整个IT行业带来了巨大变革.传统数据中心网络拓扑构建方式及网络层控制平面的运行机制存在固化性,已经难以满足新形势下日益增长的高性能及高性价比需求,并且无法支持云环境下更加灵活的按带宽租赁数据中心网络的运营方式.因此,提出了一种通过低造价的可编程交换机
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