對基于RTP上的SIP的研究及其實現.pdf

1、復旦大學碩士學位論文對基于RTP上的SIP的研究及其實現姓名：吳群申請學位級別：碩士專業(yè)：組織與系統(tǒng)結構指導教師：高傳善2000.11.30AbstractSIPisdesignedaspartoftheoverallIETFmultimediadataandcontrolarchitecturecurrentlyincorporatingprotocolssuchasRSVP(RFC2205[2】)forreservingnetwor

2、kresources，therealtimetransportprotocol@TP)(eFc1889[3】)fortransportingreaI—timedataandprovidingQOSfeedback，therealtimestreamingprotocol(RTSP)(RFC2326【4])forcontrollingdeliveryofstreamingmediathesessionannouncementprotoco

3、l(SAP)[5】foradvertisingmultimediasessionsviamulticastandthesessiondescriptionprotocol(SDP)(RFC2327【6])fordescribingmultimediasessionsHowever，thefunctionalityandoperationofSIPdoes]ZOtdependonanyoftheseprotocolsTheSessionI

4、nitiationProtocol(SIP)isallapplicationlayercontrol(signaling)protocolforcreating，modilyingandterminatingsessionswithoneormoreparticipantsThesesessionsincludeIntemetmultimediaconferences，Internettelephonecallsandmultimedi

5、adistributiOilMembersinasessionCancommunicateviamulticastorviaameshofunicastrelations，oracombinationoftheseThebackgroundofthisthesisisthecompletionoftwoprojects：“HighspeedprotocolandrealtimeAPI”and“ResearchoftheRTPImplem

6、entations”Afterthesuccessfulcompletionofthem，wefeeltheneedofresearchintotheSIPanditsimplementationthuswecaninitiateaconferencebasedonRTP／RTCPInthisthesis，wefoCUSonthecontentsandthefunctionsofSIPandanalyzetheworkingprinci

7、pleofproxyandredirectserversthenwegivedetailedexamplesofinitiatingsessionusingSIP，detailedconsiderationofthebehaviorsofuseragentandserversonimplementationofSIPonUNIXplatformisalsopresentedFinallywecompareSIPwithanothersi

8、milarprotocolH323draftedbyITUThesetwoprotocolsrepresentverydifferentapproachestothesameproblem：H323embracesthemoretraditionalCircuitSwitchedapproachtosignalingbasedonISDNQ931protocolandearlierH—seriesrecommendations，andS