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

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Presentation transcript:

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

Telecommunications - The Building Blocks AccessAccess Transmission Switching Management

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

Development of Prices for International Bandwidth (Logarithmic Scale)

Pan European Network History IXI EUROPANET EUROPANET TEN TEN GEANT Trunk Network Capacity (KBps)

Pan European Network History - Logarithmic Scale ,00010,000100,0001,000,00010,000,000 IXI EUROPANET EUROPANET TEN TEN GEANT KBps

GEANT Backbone Topology March 2002

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

Transmission Building Blocks

Development GBps GBps Denser DWDM

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

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

Data Switching Building Blocks

Switching Building Blocks Performance

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

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

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

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

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