sniffer抓包分析讲解

sniffer抓包分析讲解

ID:12734414

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页数:94页

时间:2018-07-18

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1、TroubleshootingtheNetworkTroubleshootingFlowchartMonitorApps:DashboardHostTableMatrixARTHistorySamplesProtocolDistributionGlobalStatisticsAlarmsCaptureFramesExpertAnalysisExpertOptionsFiltersTriggersDisplayFramesSummaryDetailHexNavigationSelectFramesFindFramesFiltersDisplaySetupAddressBookPacketUse

2、rTools:PingTraceRouteDNSlookupFingerWhoIsScriptsMonitorDecodeManageTroubleshootGeneratorSectionObjectivesAftercompletingthissection,youwillbeableto:ConfigureandenablealarmstoimmediatelyidentifyproblemsinthenetworkStart,stop,andsaveaSnifferPortablecaptureUseSnifferExpertanalysistotroubleshootthenetw

3、orkCustomizeacapturesessionusingfiltersApplytriggerstocapturedataat selectedtimesorbasedonerror conditionsTroubleshootingTechniquesImplementaprogramforchangecontrolPerformabaselineanalysisatregularintervalsWhentroubleoccurs,usesystematictechniquestoisolateandcorrectproblemsDevelopahypothesis,butdon

4、’tget“tunnel-vision”RepaironethingatatimeandtestallfixesthoroughlyDocumentyourdiscoveriesandconclusionsWhat’syourstrategy?EstablishaBaselineStatisticalcharacterizationofyourcriticalsegmentsUnderstandandpredictgrowthpatternsIntelligentlyplanforhardwareandsoftwareimplementationBasisforcomparisonwhenp

5、roblemsoccurResponsetimemeasurementsofregulareventsQuantifytheuser’sviewofthenetworkinrealnumbersTrackperformancelevelsforfrequentlyusedtasksandprotocolsComparehistorywithcurrenteventswhenresponsetimedegradesTopologydiagramsupdatedregularlyMaintainvisualcontrolofyourphysicalnetworkUseasavisualrefer

6、encewhenconsideringchangesAbasisforcontinuitywhenpersonnelcomeandgoDecreasewastedtimeifconsultingservicesarenecessaryBaseliningProcedures1.Implementaregularscheduleforbaseliningthatincludeshigh,mediumandlowperiodsofnetworkutilization.2.Monitorforastandardperiodoftime(10minutesforexample)andrecordst

7、atisticalmeasurements.3.Captureandfilteronaparticularnetworkstation.4.Executeapredeterminedsetofproceduresandcommandsthatwillprovidethenecessarycommand/responsecombinations.Documentthoseresponsetimes.5.Reco

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