OutlineIntroductionWhyMultipathConnectionsRelatedWorksonMultipathConnectionsRelatedWorksonMultipathConnectionsProxyServerbasedMultipathConnections(PSMC)TheKeyIdeaofPSMCPSMCDiagramThreeKeyPartsinPSMCWhyPSMCAlgorithmsforPSMCDiagramofSeverSelection/PlacementProblemRelatedWorkonAlgorithmsAlgorithmsforParallelDownloadProblemParallelDownloadAlgorithmPerformancePSMCProtocols:PacketsHandlingPSMCProtocols:IPTunnelSpecialIssuesforPSMCProtocolsIPTunnelandIPSecPSMCDiagramPSMCApplicationsSecureCollectiveDefense(SCOLD)networkSCOLD:victimunderDDoSattacksSCOLD:raisealarm(1)andinformclients(2)SCOLD:setupnewindirectroute(3)SCOLDTestbedNoDDoSattackdirectroutePSMCApplicationsEvaluationSecurityIssuesRelatedtoPSMCResearchPlanThankyou!