1 / 10

CEF Networks lighting : search for equipment

CEF Networks lighting : search for equipment. Stanislav Si ma November 23th, 2004. Dark fibres in RENs are available. More than 20 000 km in Europe (plus some fibres for GN2 and GN2 testbed) About 33 920 km in USA (including National LambdaRail) About 6 700 km in Canada

maryam-oneal
Download Presentation

CEF Networks lighting : search for equipment

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CEF Networks lighting: search for equipment Stanislav Sima November 23th, 2004

  2. Dark fibres in RENs are available • More than 20 000 km in Europe (plus some fibres for GN2 and GN2 testbed) • About 33 920 km in USA (including National LambdaRail) • About 6 700 km in Canada But: old and very expensive transmission equipment is mostly used Lucent meeting

  3. Demands on Equipment for CEF RENs • Big differences from ISP (not for profit, known users, SLA, experiments, ….) • Universities, research organisations and NRENs should prefer payment for research and education, not for network equipment • Distances between university premises are usualy short: In-line equipment in huts are not necessary • Low cost transmission equipment enables • networking in developing countries (solving of digital divide), • new research directions, etc. Lucent meeting

  4. CESNET’s approach • NIL for distances up to about 300 km • Multiple long span (n x about 150 km) • CESNET-made equipment based on available optical devices and modules, SPF, XPF, interface cards, FPGA, etc. (for example PC Light 2in1, Combo6) • Testing in CzechLight, CESNET2 • Prepared testing in other NRENs, GN2 testbed, SEEFIRE project, … Lucent meeting

  5. Lucent meeting

  6. CzechLight structure and connections Lucent meeting

  7. Lighting of dark fibre: NIL approach • Production lines G.652, 1550 nm, EDFA • 189 km Praha – Pardubice GE since May 2002 • 235 km Brno – Ostrava GE since June 2003 • 235 km Brno – Ostrava OC-48 in 4 months 2004 • Experimental lines G.652, 1550 nm, EDFA • 160 km Praha – Plzen GE April 2004 PC Light (one side) • 286 km Praha – Brno GE May 2004 (+Raman) • Experimental line G.655+G.652, 1550 nm, EDFA • 298 km Praha – Brno 10 GE November 2004 (+Raman) • More wavelengths possible Lucent meeting

  8. NIL tests in laboratory • G.652 fibre spools, EDFA + Raman: • 325 km GE • 250 km OC-48 • 252 km 2x 10 GE • 290 km 10 G DWDM • G.655 fibre spools (EDFA + Raman): • 302 km 10 G DWDM Big differences between Design, Simulation, Laboratory testing, Field testing Lucent meeting

  9. Research cooperation between CESNET and Lucent ? • CEF Networks recognized as emerging market for transmission and switching equipment • CESNET recognized as leading organization in long-span CEF Networks deployment • Suggested goals of cooperation: • Design of low costs transmission technology for CEF networks • User laboratory and field testing of Lucent equipment Lucent meeting

  10. Acknowledgement • Jan Gruntorad for support and GLIF entry • Lada Altmanova for dark fibre acquiring • Miroslav Karasek and Jan Radil for lighting of CESNET2 and CzechLight fibres • Comment: presented ideas and opinions are result of our ongoing R&D activities and are opened to improvement Lucent meeting

More Related