module04-internetV2

module04-internetV2 - The Internet Introductory material....

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1 The Internet Introductory material. An overview lecture that covers Internet related topics, including a definition of the Internet, an overview of its history and growth, and standardization and naming.
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2 A Definition On October 24, 1995, the FNC unanimously passed a resolution defining the term Internet. RESOLUTION: The Federal Networking Council (FNC) agrees that the following language reflects our definition of the term "Internet". "Internet" refers to the global information system that -- (i) is logically linked together by a globally unique address space based on the Internet Protocol (IP) or i t s subsequent extensions/follow-ons; (ii) is able to support communications using the Transmission Control Protocol/Internet Protocol (TCP/IP) suite or its subsequent extensions/follow-ons, and/or other IP-compatible protocols; and •(iii) provides, uses or makes accessible, either publicly or privately, high level services layered on the communications and related infrastructure described herein.
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3 History of the Internet Mid 1960: Papers on “Packet Switching” emerge. End 1969s: ARPA sponsors the development of a packet-switching network, called the ARPANET. First four nodes are UCLA, SRI, U. Utah, UCSB. 1974: The TCP/IP protocols and model are being proposed by Cerf/Kahn. 1980: IPv4 is introduced 1983: ARPANET adopts TCP/IP. At this time, the ARPANET has 200 routers. 1984: NSF funds a TCP/IP based backbone network. This backbone grows into the NSFNET, which becomes the successor of the ARPANET. 1995: NSF stops funding of NSFNET. The Internet is completely commercial.
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4 Applications of the Internet Traditional core applications: Email News Remote Login File Transfer The killer application: World-Wide Web (WWW) New applications: Videoconferencing Telephony P2P applications Internet Broadcast
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5 Time Line of the Internet Source: Internet Society
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6 Growth of the Internet Source: Internet Software Consortium 100 1000 10000 100000 1000000 10000000 100000000 1000000000 Aug-81 Aug-83 Aug-85 Aug-87 Aug-89 Aug-91 Aug-93 Aug-95 Aug-97 Aug-99 Aug-01 Number of Hosts on the Internet
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Internet Infrastructure local ISP campus network corporate
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module04-internetV2 - The Internet Introductory material....

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