基于节点重要性虚拟网络映射算法-研究

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1、AbstractWiththerapiddevelopmentofsociety,duetotheadventoftheInternet，whichledthehumansocietyintoanunprecedentederaofinformation，theIntemettechnologyhasbecomeanessentialpartofmodempeoplelive，leamandworkwithitsuniquedevelopmentspeed．Inmodemsociety,theintemetusershowi

2、ngtherapidgrowthtrends，whichmakingthenetworkaseriesofissues，suchascontrolandmanagementdifficultiesanditisdifficulttomeetdiverseapplicationrequirementsandSOon．Facedwiththeseproblems，anewconcepthasbeenproposed，namelynetworkvirtualization．TheSO—callednetworkvirtualiza

3、tiontechnologyreferstoacommonphysicalnetworkwhichsupportsmultipleindependentvirtualnetworks，whichusethemechanismsofabstraction，distributionandisolationmechanism．ThistechnologyCanachieveareasonabledistributionoftheunderlyingnetworkresourcesbasedonthechangeofuserneed

4、s，letthenetworkresourcesreceivedynamicallocationandrealizemanageability．Withtheintroductionofthetechnology,domesticandforeignresearchscholarofnetworkvirtualizationhasgraduallyincreased．Innetworkvirtualizationtechnology,oneoftheurgentneedstostudyandsolveproblemsisth

5、evirtualnetworkmapping．Theresourcesinphysicalnetworkhavenodesandlinksresources，andthebasicfunctionforvirtualnetworkmappingproblemistoallocatephysicalresourcestodifferentvirtualnetworks．Currently,theresearchonvirtualnetworkmappingproblemhasbeenconcernwidespread，whic

6、hisoneofthehotissuesofthenetworkvirtualizationresearch，whichhasappearedinnumerousdomesticandrelatedresearch．Basedonthetraditionalvirtualnetworkmappingalgorithm，itanalysishowtoprioritymappingvirtualnetworkmoreimportantnodetotheunderlyingnetworkmoreimportantnodefromt

7、heperspectiveofthenodeimportance，whichcanmakebetteruseoftheunderlyingnetworkresourcesandCanconsideringmoreofnetworkloadbalancingperformance．Themainlytwotypesofnodesimportanceresearchmethodsaresocialnetworkanalysismethodsandsystemsforscientificresearchmethods．Theref

8、ore，accordingtothesetwoaspects，ithasproposedtwovirtualnetworkmappingalgorithm，namelytheentropyweightmethodandthenodedeletionmethodforvirtualnetwo