@@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
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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