CPSC 411 Tutorial TA: Fang Wang. Fang Wang 9:00am-5:00pm, Mon-Fri.

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Presentation transcript:

CPSC 411 Tutorial TA: Fang Wang

Fang Wang 9:00am-5:00pm, Mon-Fri

Tutorial Timeline T03 Monday and Wednesday 9:00-9:50AM in ST057 T01 Monday and Wednesday 10:00-10:50AM in ST 063

Assignments Four assignments, due on Feb.5, Mar.5, Mar.26, Apr.9 All details in course webpage Individual assignment (mostly programming assignment)

Assignments Tentative assignment topic Web Proxy TCP Routing Medium Access Control (MAC)

Today’s Tutorial A video on Youtube: History of Internet

History of the Internet ARPANET: (Ray Tomlinson) 1982(SMTP protocol) TCP: 1974 (Vint Cerf and Bob Kahn) TCP/IP: 1983 Reference: On course website under “Useful Links”

History of the Internet Web 1990 (Tim Berners-Lee) Google (1998) Facebook: 2004 YouTube: 2005 Reference: On course website under “Useful Links”

Introduction1-9 Internet History 1961: 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

Introduction1-10 Internet History 1970: 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

Introduction1-11 Internet History 1983: 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

Introduction1-12 Internet History 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

Introduction1-13 Internet History 2007: ~500 million hosts Voice, Video over IP P2P applications: BitTorrent (file sharing) Skype (VoIP), PPLive (video) more applications: YouTube, gaming wireless, mobility

Interview with Vint Cerf about the early days of the Internet and TCP/IP (by IEEE tv) Interview with Vint Cerf about the early days of the Internet and TCP/IP (by IEEE tv)