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SWITCHlambda Swiss experiences and plans with national fibres Thomas H. Brunner brunner@switch.ch

SWITCHlambda Swiss experiences and plans with national fibres Thomas H. Brunner brunner@switch.ch. SWITCHlambda Project. SWITCHlambda: Interconnecting all Swiss Universities with dark fibre infrastructure. Decision by the SWITCH Council of Foundation November 2001: Long term strategy

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SWITCHlambda Swiss experiences and plans with national fibres Thomas H. Brunner brunner@switch.ch

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  1. SWITCHlambda Swiss experiences and plans with national fibres Thomas H. Brunner brunner@switch.ch

  2. SWITCHlambda Project • SWITCHlambda: • Interconnecting all Swiss Universities with dark fibre infrastructure • Decision by the SWITCH Council of • Foundation November 2001: • Long term strategy • To be deployed step by step • Yearly optimized

  3. Project Goals • Long living infrastructure, independent on carriers • wide area links • local loops • Cost control • high investment, but low recurring cost • higher datarates at almost no extra cost • “cheap” way to implement QoS on backbone • Single infrastructure • operational network can coexist with advanced experimental network • private networks for special research projects

  4. 1st Step: Dark Fibre Geneva - Zurich Dec 2000 Contract with Fibre Lac SA: IRU for 20 years for 1 pair of fibres Geneva - Zurich May 2001 Evaluation DWDM equipment Aug 2001 Dark fibre accepted Sep 2001 Acceptance test DWDM Oct 2001 Start of operation

  5. DWDM System Design • Sorrento Gigamux platform • Bi-directional, designed for 10 Gbps / l and 2 * 16 ls • Optical nodes located at university sites, spacing 60..110 km • 360 km total end-to-end distance • Optical amplification at intermediate nodes, no regeneration • Only GigabitEthernet interfaces in use, 2 channels per l • 10 GigabitEthernet on request • Separate connections (1 or 10 GE) for special projects

  6. Experiences • Wide area fibre • No surprises, cost were known from the beginning • Local loops • Cost effective solutions require a lot of planning and negotiations • Synergies with other local projects possible • DWDM • Once its set up, simple and stable • Customer demand lagging behind expectations • Little interest for private p2p GE links, no request for 10 GE

  7. 10 Gbps Experiment • Tests to verify 10 Gbps / l capability • Borrowed STM-64 transponders from Sorrento and Force-10 routers • Result • 1st test with signal regeneration at Berne • 2nd test with transparent channel Zurich - Geneva • In both cases 0 packet loss for 8 Gbps average load during 35 hours • bit error rate better than 10-15

  8. Planned Setup end of 2002 Existing fibre optic link May 2002 Contract with the Swiss federal railways singed 2 new links planned for end 2002: Geneva - Lausanne- Neuchatel - Olten - Zurich Zurich - Gotthard - Manno

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