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Update on German Network for Research & Education

Learn about the targets, objectives, and financing of the DFN association's leading-edge infrastructure, G-Win, and its successful international collaborations. Discover the future of higher education and research connectivity, including new applications and services.

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Update on German Network for Research & Education

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  1. Update on German Network forResearch & Education Martin Wilhelm DFN, Germany wilhelm@dfn.de October 2002

  2. DFN association: targets, objectives, finance Today's technical platforms and services Example of successful internat. collaboration What is next? Contents

  3. Higher Education and Research (universities, research institutes) Institutions with close relationship to the research and education community Research departments of industry Government agencies Targets of DFN association

  4. Provision of nat. and internat. connectivity by means of a leading edge infrastructure (G-Win) Bundling community requirements Testbeds for next generation network technologies Promotion of new applications Organization for international collaboration Objectives of DFN association

  5. non-profit organization federal government subsidizes start-up Operational costs (capacity, equipment, personnel, services ...) must be fully covered by income:  charges for services Finance of DFN association

  6. Toolkit of SDH/WDM lines from Dt. Telekom: configurable topology, increasing bandwidth 27 network nodes operated by DFN Used for IP, ATM, GigE links, DFNVC, ... Automatic SLA evaluation of 15min BER Transport Platform

  7. G-WiN: Today‘s Topology Rostock Core Node 10 Gbit/s 2,4 Gbit/s 2,4 Gbit/s 622 Mbit/s as of October 2002 Kiel Hamburg Global Upstream Oldenburg Braunschweig Hannover Berlin Magdeburg Bielefeld Essen Göttingen Leipzig St. Augustin Dresden Marburg Ilmenau Aachen Würzburg Topology computed, based on Operations Research methods. Optimised for low hopcount, low cost, high resilience by use of actual traffic matrices Frankfurt Erlangen Heidelberg GEANT Karlsruhe Regensburg Kaiserslautern Stuttgart Garching Augsburg

  8. KR KR KR KR CR ar CR: Core Router AR: large Access Router ar: small Access Router KR: Customer Router KR ar Structure of Routers CR CR CR AR ar ar AR Level-1 node Level-2 node Level-2 node

  9. approx. 600 connected sites ~ 800 TB/month network throughput 95% of all traffic is IP traffic ~ doubles every year Global Upstream 5 Gigabit/s connected to GTREN @ 2,5 Gigabit/s via GEANT Some figures of DFN Internet

  10. Problem tracking at a G-WiN core node

  11. DFNIP: IP-service (national, international, NREN-to-NREN as well as Global Upstream) DFNConnect: Point-to-point within network DFNATM: “Legacy” ATM DFNVC: Managed Video Conference Service DFN@home: Dial-in (ISDN, xDSL) with pro-vision of IP-addresses from home institution Services provided

  12. Collaboration Duke University - DFN Telepresence across Internet2 networks (details athttp://www.fuqua.duke.edu/admin/it/telepres.htm) Global Conference System, connecting Durham, NC and Frankfurt, Germany. No noticeable latency, video and audio in perfect synch

  13. Electronic Ribbon Cutting Procedure

  14. What is next? 2003: More 10 G links in core 2004: Call for tender: new transport platform Growing demand for real-time services Interworking optical layer / IP ? New applications and services

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