流控制传输协议(SCTP)的研究及NS2仿真实现(3)

时间:2025-07-09

南京邮电学院硕士学位论文ABSTRACT

ABSTRACT

WiththeconvergenceofIPnetworkandsomeeXis妇gtelecommunicationsnetworks(suchasPSTN,ISDNandMobileNetworks),itisnecessarytotrallsportSS7signalingmessageoVerIPnetwork,whichisabest-e肋rtnetwork,butSS7requiresstringentneedonreliabilityandreal-timedeliVery.Inordertoachievetheimemetworkingofthesignaling,theSignalingTrallspon(SIGTm≮N)、vorkinggroupoftheIntcmetEngineering1bkForce(IETF)was印eciallyfoundedtobeincha蝎eofdesigningthestandardsfortraIIsponingPS’INsignalingovorIPnetwork,includingtheStre锄ControlTrallsponProtoc01(SCTP).

First,thepaperintroducesthcbackgroundandhistoryofSCTPa工ldbrienydescribesmeuniquecharacteristicsofSCTP,itsfornlatofpackets,&initializationandterrninationofassociation,theev01utionofChecksumA190rith,etc.ARerdiscussingsomeimportalltissues,suchasthcmechaIlismofCookie,thediscoveryofmePathMaximumTYansmissionUnitandthecongestionavoidancemechallism,tllispaperpresentstheproblemsinmefastretransmissionofSCTPwhenthehostdoeschangeoverintheaddressspace.Theproblemisdlletotllemuhi-homing,andresultsinu1111ecessaryretraJlsmissionsandove玛ro研hofmecongestion谢ndowduringcertainchallgeovercond“ions.Thenadetailedanalysisispresented,someimproVementofthefastretra璐missionisgiVen.TheimpmVementisemulatedbyusingtheNS2(NetworkSimulator).

Atlast,thispaperanalysessomeapplicationsusingSCTP,suchasFTPoVerSCTPaIlditsroleinNGN(NeXtGenerationNetwork),anddiscussesitssecuritymechanismanditsfuturedevcIopment.

Keywords:SCTP,Multi.homing,Multi-streamin&NS2,changeoverll

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