UPnP Device Architecture

《UPnP Device Architecture》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、UPnPDeviceArchitectureUPnPDeviceArchitectureNetworkingiseasy,except…Networkingiseasy,except…Adhocnetworksdon'thaveresourcesjustforthesakeofthenetworkE.g.,DHCP,DNS,directory,…NetworkisunreliableNodesadded/removedunpredictablyProgramsneedtotalktoprograms

2、ButsoftwareisheterogeneousOnesizedoesn'tfitallMustupgradesystempieceatatimeUPnPStrategyUPnPStrategy1.Justsenddataoverthenetwork(Noexecutables)MinimizeversionissuesMinimizesecurityissues2.KeepimplementationprivateBeagnosticre:programminglanguage,OSUpda

3、teimplementationw/oaffectinginteropImproveperformanceReducefootprintImprovecapabilities3.Agreeonmeaning/formatofdataChoosesubstrateofprovenprotocolsDefinedevice(service)specificprotocolsinaForumUPnPTacticsUPnPTacticsStartsimpleBuildinonlyuniversalthin

4、gsthateverybodyneeds(andcanlivewith)AddasneededMinimizerequirementsBasicIPnetworkconnectivityCommonHTTPprotocolstackLeverageexistingstandardsHTTP,XMLGoalsGoalsDescribetheprotocolsforcommunicationbetweenControlpointsControlPointControlPointController

5、,usuallyclientDeviceDeviceDeviceControlled,ServiceServiceusuallyserverAnactualdevicemightcontainControlPointControlPointbothfunctionsDeviceDeviceServiceServiceStepstoUPnPNetworkingStepstoUPnPNetworking3Control4Eventing5Presentation2Description1Discovery0A

6、ddressing0Controlpointanddevicegetaddresses1Controlpointfindsinterestingdevice2Controlpointlearnsaboutdevicecapabilities3Controlpointinvokesactionsondevice4Controlpointlistenstostatechangesofdevice5Controlpointcontrolsdeviceand/orviewsdevicestatususingHTMLUI

7、UPnPProtocolStackUPnPProtocolStackVendor-specificAPIaboveUPnPvendorUPnPvendorUPnPForumUPnPForumUPnPDeviceArchitectureUPnPDeviceArchitectureHTTPU/MUHTTPU/MUGENAGENASSDPSSDPSOAPSOAPHTTPHTTPGENAGENAHTTPHTTPUDPUDPTCPTCPIPIPVendor-specificOSbelowVendor-specificph

8、ysicalnetStepstoUPnPNetworkingStepstoUPnPNetworking3Control4Eventing5Presentation2Description1Discovery0*Addressing0*Controlpointanddevicegetaddresses1Controlpointfindsinterestingdevice2Controlp