1. Dai Davies : General Manager : DANTE Ltd dai.davies@dante.org.uk www.dante.net TERENA Networking Conference 7-10 June 2004 Rhodes, Greece GÉANT 2: A NEW APPROACH TO NETWORKS

2. Research Networks By definitionBy definition - High bandwidth - High bandwidth - Specialized applications (GRID, high speed FTP,…) - Specialized applications (GRID, high speed FTP,…) - Multi – protocol (IPv4, IPv6) - Multi – protocol (IPv4, IPv6) InternationalInternational InnovativeInnovative

3. GÉANT 2 IP connectivity for NRENs - yearly growth 2x to 3x High bandwidth for special applications Services for GRIDs Establish customer empowered networks Responded to the expectations of the community

4. Support for European VLBI Radio Telescope Correlator Data Flows (RT or non-RT)

5. EVN Traffic Flows over GÉANT UK SE FR NL BE DE1 DE2 CZ PL CH IT AT SURFnetJANETGARRPSNCDFN NORDUnet 2.5G 10G 256M  512M? 1G  JIVE

6. Reverse EVN Traffic Flows over GÉANT UK SE FR NL BE DE1 DE2 CZ PL CH IT AT SURFnetJANETGARRPSNCDFN NORDUnet 2.5G 10G JIVE

7. Relative Cost of DWDM Connectivity and Router Interfaces with Speed of Operation

9. NREN 1 NREN 2 Geant-2 GRID User Backbone with traditional users Backbone with traditional users GE 4 x 10Gbit/s 2x10 Gbit/s 2x10 Gbit/s VPN GE IP Concept 1

10. NREN 1 NREN 2 Geant-2 GRID User Backbone with traditional users Backbone with traditional users GE 4 x 10Gbit/s 2x10 Gbit/s 2x10 Gbit/s VPN 2.5 Gbit/s IP SDH Concept 2

11. POP Design

12. Technology Investigation of Transmission Costs Scepticism re 40 Gbps Interfacing Costs OEO cross connects interesting “All Optical” some way off Emphasis on AAA and Control issues

13. CONCLUSIONS Not a lowest common denominator approach Back to the challenge of the 1930s There’s ALWAYS 80 Gbps