Outlines requirements and time allocation 1.73 Network Entities and Layers 25分钟 End systems and packet switches (通过飞机旅行分层结果，重点讲解计算机网络分层方法与分层优点) 1.8 A Brief History of Computer Network and Intemet(计算机网络和因特网的历史) 1.8.11961-972 15分钟 1961:Kleinrock-queueing theory shows effectiveness of packet-switching 1964:Baran-packet-switching in military nets 1967:ARPAnet conceived by Advanced Reearch Projects Agency 15分钟 1969:first ARPAnet node operational 1972: ARPAnet demonstrated publicly NCP(Network Control Protocol)first host-host protocol first e-mail program ARPAnet has 15 nodes 1.8.21972-1990 15分钟 1970:ALOHAnet satellite network in Hawaii 1973:Metcalfe's PhDthesis proposes Ethemet 1974:Cerf and Kahn-architecture for interconnecting networks 15分钟 late70's:proprietary architectures:DECnet,SNA,XNA late 70's:switching fixed length packets(ATM precursor) 1979:ARPAnet has 200 nodes 1:deployment ofTCP/P 1983:DNS defined for name-to-IP-address translation 1985:ftp protocol defined 1988:TCP congestion control 1.8.31990s 15分钟 66 Outlines, requirements and time allocation 1.7.3 Network Entities and Layers End systems and packet switches （通过飞机旅行分层结果，重点讲解计算机网络分层方法与分层优点） 1.8 A Brief History of Computer Network and Internet（计算机网络和因特网的历史） 1.8.1 1961-1972 1961: Kleinrock - queueing theory shows effectiveness of packet-switching 1964: Baran - packet-switching in military nets 1967: ARPAnet conceived by Advanced Reearch Projects Agency 1969: first ARPAnet node operational 1972: ARPAnet demonstrated publicly NCP (Network Control Protocol) first host-host protocol first e-mail program ARPAnet has 15 nodes 1.8.2 1972-1990 1970: ALOHAnet satellite network in Hawaii 1973: Metcalfe’s PhD thesis proposes Ethernet 1974: Cerf and Kahn - architecture for interconnecting networks late70’s: proprietary architectures: DECnet, SNA, XNA late 70’s: switching fixed length packets (ATM precursor) 1979: ARPAnet has 200 nodes 1983: deployment of TCP/IP 1982: smtp e-mail protocol defined 1983: DNS defined for name-to-IP-address translation 1985: ftp protocol defined 1988: TCP congestion control 1.8.3 1990s 25 分钟 15 分钟 15 分钟 15 分钟 15 分钟 15 分钟