TA: Xifan Zheng Welcome to CPSC 441!

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Presentation transcript:

TA: Xifan Zheng Welcome to CPSC 441!

1. Something about me Welcome to CPSC 441 Xifan Zheng, 1 st year Master student in CS 9:00am-5:00pm, Mon-Fri

2. Something about tutorial Welcome to CPSC 441 T02, MW 11:00 AM, ENC 127 Four assignments, due on Feb.5, Mar.5, Mar.26, Apr.9 All details in course webpage

3. Something about assignment Welcome to CPSC 441 Individual assignment (mostly programming assignment) Tentative assignment topic Web Proxy TCP Routing Medium Access Control (MAC)

4. Today’s Tutorial Welcome to CPSC 441 History of the Internet

Milestones Welcome to CPSC 441 ARPANET: (Ray Tomlinson) TCP/IP: 1982 TCP: 1974 (Vint Cerf and Bob Kahn) Reference:

Milestones Welcome to CPSC 441 Web 1989 (Tim Berners-Lee) Google (1998) YouTube: 2005 Facebook: 2004 Reference:

History of the Internet - 1 Welcome to CPSC : Kleinrock - queueing theory shows effectiveness of packet-switching 1964: Baran - packet-switching in military nets 1967: ARPAnet conceived by Advanced Research Projects Agency 1969: first ARPAnet node operational 1972: – ARPAnet public demonstration – NCP (Network Control Protocol) first host-host protocol – first program – ARPAnet has 15 nodes : Early packet-switching principles

History of the Internet - 2 Welcome to CPSC : ALOHAnet satellite network in Hawaii 1974: Cerf and Kahn - architecture for interconnecting networks 1976: Ethernet at Xerox PARC ate70’s: proprietary architectures: DECnet, SNA, XNA late 70’s: switching fixed length packets (ATM precursor) 1979: ARPAnet has 200 nodes Cerf and Kahn’s internetworking principles: – minimalism, autonomy - no internal changes required to interconnect networks – best effort service model – stateless routers – decentralized control define today’s Internet architecture : Internetworking, new and proprietary nets

History of the Internet - 3 Welcome to CPSC : deployment of TCP/IP 1982: smtp protocol defined 1983: DNS defined for name-to-IP-address translation 1985: ftp protocol defined 1988: TCP congestion control new national networks: Csnet, BITnet, NSFnet, Minitel 100,000 hosts connected to confederation of networks : new protocols, a proliferation of networks

History of the Internet - 4 Welcome to CPSC 441 Early 1990’s: ARPAnet decommissioned 1991: NSF lifts restrictions on commercial use of NSFnet (decommissioned, 1995) early 1990s: Web – hypertext [Bush 1945, Nelson 1960’s] – HTML, HTTP: Berners-Lee – 1994: Mosaic, later Netscape – late 1990’s: commercialization of the Web Late 1990’s – 2000’s: more killer apps: instant messaging, P2P file sharing network security to forefront est. 50 million host, 100 million+ users backbone links running at Gbps 1990, 2000’s: commercialization, the Web, new apps

History of the Internet - 5 Welcome to CPSC 441 Nowadays 2007: ~500 million hosts Voice, Video over IP P2P applications: BitTorrent (file sharing) Skype (VoIP), PPLive (video) more applications: YouTube, gaming wireless, mobility

More information Welcome to CPSC 441 Interview with Vint Cerf about the early days of the Internet and TCP/IP (by IEEE tv) wer?dl= wer?dl= Hobbes Internet Timeline imeline/ imeline/

Questions? Thanks for attending!