@@传统测量与层析成像结合的网络拓扑识别方法研(5)

发布时间:2021-06-07

leafnodesalgorithmCallbedividedintodivisionofleafnodesalgorithmforgeneraltopologytreeanddivisionofleafnodesalgorithmforbinary

thetypeoftopology.Thismethodtopologytreeaccordingtoreducesthecomputationalcomplexityandimprovestheaccuracyaswell.

aspectofmeasuremethod,we(2)Atthe

basedonintroducethenew“sandwich'’probecoinlnon“sandwich'’probe.The

usingthesimilarityTTLvariablepackettosolvetheproblemoflengthofthe

becommon‘‘sandwich'’probeinferthedata.Theaccuracyofthesharedpathbyerrorlengthwill

onaffectedbythecanofthesimilaritydata.The“sandwich'’probebased

sharedpath

probe、析nlbyTTLvariablepacketobtaintheexactlengthofthebycompareofthesimilaritieswhichareobtainedsending‘‘sandwich'’toonly10%different丌L.Thismethodreducesthenumberofpackets

comparetotheoriginalnumberandtheaccuracyisalsogreatlyimproved.

(3)Finally,Weproposeacomprehensive

withsolutionbytheandcombinationofthealgorithmstraditionalinferencemethodstracerouteimprovedand

measurement

topological

anonymousmethods.Thismethodfirstlyobtainssomeofthetopologyallinformationinitialusefromthecoordinatenodesinthenetworkandthenproposesstructurebyincompleteusingtheinitialtopologyconstructalgorithm.Finally,wetonodeprocessalgorithmidentifytheincorre:ctorincompletepartoftheinitialtopologicalstructuretogetthefinaltopology.ThismethodfBrtherreducesthenumberofpacketsandfurtherimproves

UsingNS2simulationstheinferenceaccuracy.wehaveprovedthatthecombination

tomographynotonlyoftraditionalmethodsandtopologyinferencebasedonreducethecomplexity

andthenumberofpacketstobesendbutalsoimprovetheinferenceaccuracyoftopology.

Keywords:networktopologyinference,network

TTL.traceroutetomography,hierarchicalclustering,

IV

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