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The Internet Geoff Huston Telstra Internet What can I say about the Internet..... that hasn’t been said already! What is the Internet Impacts of the Internet Internet Futures Evolution of Silicon The evolution of the computer in the 80’s single mainframe to many personal devices

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The internet l.jpg

The Internet

Geoff Huston

Telstra Internet


What can i say about the internet l.jpg
What can I say about the Internet.....

that hasn’t been said already!


Slide3 l.jpg

What is the Internet

Impacts of the Internet

Internet Futures


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Evolution of Silicon

  • The evolution of the computer in the 80’s

    • single mainframe to many personal devices

  • Data communications to link these personal devices are essential


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Data Communications

  • The objective is to transfer digital data without error between two computers:

    • break the data into “chunks” for transmission (packets)

    • add packet “header” containing

      • source

      • destination

    • transmit the header plus packet data

    • await “ack” of successful transmission of packet


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Local Area Networks

  • High Speed office networks

    • Ethernet - 10 / 100 Mbps broadcast

    • Token Ring 4 / 16 Mbps ring

    • FDDI 100Mbps ring


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Internetworking

  • Linking Local Area Networks

Internetwork Domain


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TCP/IP - the Internet Protocol

  • unreliable datagram transmission with end to end coherency (stateless network)

  • Functionally complete protocol architecture

  • speeds from gigabit to bit

  • can use any communications medium

  • Openly (freely) available

  • Simple and Sufficient


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The Internet - Hosts & Routers

  • Hosts

    • generate packets

    • retain packet until acknowledged by destination

    • retransmit packet is assumed lost

  • Routers

    • switch packets

      • inspect packet header

      • decode destination address

      • lookup address table of destinations

      • transmit packet on next hop

    • or drop packets!


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Internetworking

Host Data Source

data flow

Router

Packet

Router

Router

Host Data Receiver


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Network link

with multiplexed

data traffic

Internetworking


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Internets

  • Composed of Routers and data links


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The Internet

98 Countries

40+ Million Users

A network is added to “the net” every 20 minutes.


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Telstra’s Internet

24Mbps

TO U.S.A. VIA

PACRIM WEST

8 Mbps

TO U.S.A. VIA

PACRIM EAST

Telstra NODE


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The Internet Service Model

Internet Applications operate host to host

Data Path

Internetwork Domain


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Some Internet Applications

  • Electronic Mail

  • On-line Information Services (WWW, Gopher)

  • Bulletin Boards, Social Networks

  • Interactive Games

  • Distance Learning

  • File Transfer

  • Home Shopping

  • Internet Telephone

  • Video Mail

  • Video-conferencing


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TCP/IP vs Telephony

  • switching data packets, not dedicated analogue circuits

  • adaptive flow control, not real time flow

  • end to end absolute data integrity, not data distortion

  • No defined level of service

  • No coherent service provider structure

  • No coherent administrative structure


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The Internet World

  • Communications capabilities as software loaded into the end device

  • The end devices control the information flow across the network

  • The network is just a “dumb” switch

  • The services are loaded into the end devices

  • Every receiver is a transmitter!


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The Internet Environment

  • Distributed information environment

  • Diversity of consumer access devices

  • Ubiquitous network service

  • end-to-end service model


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The Active Communications Model

  • Capable user devices which can generate and receive services

  • Passive Data Transmission Network



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X 10

X 10

X 10

AV-CC “Charging Proposals for AARNet”

Aug 94

X 10

AARNet acquisition business case projections

Sep 94

Projection by Telstra Internet & NTG (Donnelly / Kennelly)

Sep 95

Former IBU International Wholesale Product Management

Sep 95

International Engineering (Kennedy)

1996

Capacity currently booked by Telstra Internet

Jun 96

Concert - MCI proposal

Jun 96

NTG Strategic Development Unit

Jun 96

X 10

International Internet Capacity - A Selection of Projections

Linear Thinking in a Non-linear Era

Today

Sydney 2000

Total

Peak

Bandwidth

10GB/s

Anticipated

Pessimistic

All

TelephoneTraffic

5

trend of Internet projections

1GB/s

1

698

~4Q1998

444

x

562

400

155

155

122

100MB/s

95

AllInternet Traffic

83

81

68

60

Today

36

32

27

24

24

16

11

10MB/s

10

Sources

7

6

5

1.5

1MB/s

Actual historical growth

100kB/s

1996

1990

1992

1994

1998

2000

2002

2004

2006

2008



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Communications Model - 1995

  • Voice, Television, Radio and Print networks:

    • “Smart” content provider

    • “Smart” network

    • “Dumb” access device

  • Data over Voice


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Communications Model - 2000

  • A Ubiquitous Internet

    • “dumb” network

    • “smart” access devices

    • service flexibility

    • no distinction between content provider and consumer

  • Voice as one of many data applications


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Impacts

  • Users are Clients and Providers

    • no massive investment is required to generate content

    • each network user can generate content on their networked device.


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Impacts

  • No Strict Service model

    • services are defined within software

    • one device can map to multiple communications services

    • the network supports unicast, multicast and broadcast models simultaneously

    • the network supports synchronous and asynchronous communications models


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Populating the Internet World

  • Content provision is easy

  • Abundance of

    • content

    • trading environments

  • Content navigation is difficult!

  • Directory and Navigation technologies critical


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Impacts

  • Communications Service Enterprises ?

  • Publication Industry ?

  • Media ?

  • Business and Information Flow ?

  • Transaction Industry ?

  • Finance ?


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By 2001

  • 1 billion connected devices

  • 1 million component networks

  • voice as a data application

  • thousands of applications

  • underpin the global communications environment

  • Alter institutional, financial and political boundaries


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And Beyond

Silicon thrives on volume !



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