1. A New Type of Network Dai Davies DANTE IST Research Networking Test-beds Event 26 – 27 May 2005 Brussels

2. GÉANT Topology October 2004

4. 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. Relative Cost of Switch Interfaces and Router Interfaces 0 50,000 100,000 150,000 200,000 250,000 300,000 1556222,50010,000 Speed of Interface Mbps List Price in €'s Switch Interface Costs Router Interface costs

8. Hybrid Networks Cost effective Fits emerging traffic flows BUT Control issue a challenge Performance Issue a challenge