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1、下一代互联网的二点技术探讨和体系架构的再思考傅承鹏AsstProfessorNanyangTechnologicalUniversity1目录¢TCP/IP回顾-可靠端到端传输和LAN网融合¢二点技术探讨ß技术探讨一:端到端的安全ß技术探讨二:IPv4地址短缺的突破探讨ß二点技术与现在通讯热点的相关性¢体系架构再思考ßNGI,NGN,GENI,AGN,ßVenoII思想与实现ß终极愿景-可信端到端传输和通讯网大融合?¢总结与致谢2TCP/IP回顾:TCP(可靠端到端传输)3Cont’d¢1974VintonCerf,Robe
2、rtKahn“AProtocolforPacketNetworkIntercommunication”IEEETrans.OnComm.¢TCPtargetßProvidereliabledatacommoverunreliablemedium(e.g.link(s),intermediatenodes)(成功实现在不可靠的路经上提供可靠地端到端(或进程到进程)地数据通讯传输.)ß重心是Applicationtoapplication/processtoprocess/e2e而不是中间的某个线路和节点ßMSN/Email:I
3、loveyou!我爱您ÆIhateyou!我恨您!¢Mosaic,Netscape,IEexplorer….4TCP/IP回顾:IP(LAN网融合)App2App25PhysicalWorld:TechnologyandMarketRRRRRRR•1978.Networking(联网->规模->创建一个共赢的大市场)•IPTarget:UniversalNetworkinginfrastructure•AddressingUniversally(统一寻址)•Routing(高效的路由选择)•Ciscounifiesallsm
4、allmarketandcreateabiggermarket(grabsthis6opportunityin1980’s)LAN/WANin70s/80s–Internetin80s/90s7TCPandIP的辩证关系总结¢IfthereisnoIP,whathappenedtoTCP?ßNonetworkÆnousers¢IfthereisnoTCP,whathappenedtoIP?ßNoreliablecommunications->nokillerappl.¢结论ßIP–统一寻址,路由,(介质)隐藏/屏蔽->LAN
5、融合->创建一个共赢的大市场ßTCP–可靠端到端数据传输ßComplementary标准->Today’sInternet8LayeringView(可靠端到端传输和LAN网融合)ByIntroductionofanUniversalplatform(TCP/IP)Applicationsarequite•Noneedtospendtimeonindividualboundtodifferenttypesnetworksofnetworksandlack•Provideoneuniversalplatformfordevel
6、opingmoreapplicationsflexibilities•Ciscowasborn….App.1AppApp.3App.1App.2App.3App.1App.2App.3App.1App.2App.3App.4App.5App.n.......2App.1App.2App.3App.1App.2App.3App.1App.2App.3TCPUDPIPv4EthernetEthernetRingTokenFDDIRingTokenFDDInew9目录¢TCP/IP回顾-可靠端到端传输和LAN网融合¢二点技术探讨ß
7、技术探讨一:端到端的安全ß技术探讨二:IPv4地址短缺的突破探讨ß二点技术与现在通讯热点的相关性¢体系架构再思考ßNGI,NGN,GENI,AGN,ßVenoII思想与实现ß终极愿景-可信端到端传输和通讯网大融合?¢总结与致谢10技术探讨一:端到端的安全(VenoSEC)¢VenoSECprovidestransparentend-to-endsecurityHTTP,Telnet,FTP,POP...HTTP,Telnet,FTP,POP...InternetEnd-to-endsecurechannelFirewallN
8、ATVPNInsertedInsertedsecuritymoduleSecurechannel-dataisprotectedsecuritymoduleInsecurechannel-attackerscanwithencryptionandintegritycheckeavesdro