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NEW ADVANCES IN TELECOMMUNICATIONS Lancaster University : 11 March 2002 Dai Davies : General Manager

Published byGyles Rose Modified over 9 years ago

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Presentation on theme: "NEW ADVANCES IN TELECOMMUNICATIONS Lancaster University : 11 March 2002 Dai Davies : General Manager"— Presentation transcript:

1 NEW ADVANCES IN TELECOMMUNICATIONS Lancaster University : 11 March 2002 Dai Davies : General Manager dai.davies@dante.org.uk www.dante.net

2 Telecommunications - The Building Blocks AccessAccess Transmission Switching Management

3 DANTE Builds and Manages the Pan-European Research InternetBuilds and Manages the Pan-European Research Internet Organises Development of New ServicesOrganises Development of New Services Interested in Advancement of TechnologyInterested in Advancement of Technology

4 Development of Prices for International Bandwidth (Logarithmic Scale)

5 Pan European Network History 20004000600080001000012000 IXI 1990-1993 EUROPANET 1993-1996 EUROPANET 2 1996- 1997 TEN-34 1997-1998 TEN-155 1998-2001 GEANT 2001 - Trunk Network Capacity (KBps)

6 Pan European Network History - Logarithmic Scale 1101001,00010,000100,0001,000,00010,000,000 IXI 1990-1993 EUROPANET 1993-1996 EUROPANET 2 - 1996-1997 TEN-34 1997-1998 TEN-155 1998-2001 GEANT 2001- KBps

7 GEANT Backbone Topology March 2002

8 Access xDSLxDSL Cable Modem G-Ethernet Dark Fibre 3G Mobile

9 Transmission Building Blocks

10 Development 200340 GBps 200580 GBps Denser DWDM

11 DWDM Implementation and Switching Analogue TechnologyAnalogue Technology – power budgets –attenuation –chromatic dispersion Mechanical (physical) Switching Crude Management

12 Switching Architecture - Software vs HardwareArchitecture - Software vs Hardware Wire Speed Performance Back to Crossbar

13 Data Switching Building Blocks

14 Switching Building Blocks Performance

15 Management Less rather than MoreLess rather than More Quality of Service Network Intelligence A Forgotten World

16 Network Management Per Flow vs Per PacketPer Flow vs Per Packet Network StatisticsNetwork Statistics Network ConfigurationNetwork Configuration Optical SwitchingOptical Switching

17 Telecommunications Successes Switched VoiceSwitched Voice TELEXTELEX FACSIMILE - Group 3FACSIMILE - Group 3 Mobile - including GSMMobile - including GSM World Wide WebWorld Wide Web

18 Telecommunications Lemons TeletexTeletex I.S.D.N.I.S.D.N. VideotextVideotext Low Flying SatellitesLow Flying Satellites

19 The New Challenges Network ManagementNetwork Management New ServicesNew Services New ApplicationsNew Applications

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