Скачать презентацию Long haul 10 G Ethernet Dark fiber tests Скачать презентацию Long haul 10 G Ethernet Dark fiber tests

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Long haul 10 G Ethernet Dark fiber tests in Denmark Presented by Mikkel Olesen, Long haul 10 G Ethernet Dark fiber tests in Denmark Presented by Mikkel Olesen, CERN

l Part of the IST ESTA project (Ethernet Switching at 10 G and Above) l Part of the IST ESTA project (Ethernet Switching at 10 G and Above) l Project members l COM institute at Technical University of Denmark l CERN in Geneva l BATM in Israel

Agenda Goals l DAREnet dark fibers in Denmark l Equipment l Lab experiments at Agenda Goals l DAREnet dark fibers in Denmark l Equipment l Lab experiments at COM/DTU l Field tests, used setup’s and results l Conclusion l Future work and use l Questions? l Monday, August 25, 2003 Long haul 10 G Ethernet 3

Goals l Examine the possibility to use standard 10 G Ethernet LAN equipment for Goals l Examine the possibility to use standard 10 G Ethernet LAN equipment for longhaul WAN transmission – – Using DAREnet’s 250 km SMF link between Odense and Lyngby If possible find a setup that has a BER below 1 E-12 which is the 802. 3 ae objective Use standard NIC’s and aggregating switch's to verify link with real Ethernet traffic Measure the setup’s power penalty Monday, August 25, 2003 Long haul 10 G Ethernet 4

DAREnet fiber in Denmark l The 252 km of standard SMF dark fiber between DAREnet fiber in Denmark l The 252 km of standard SMF dark fiber between Odense and Lyngby l Includes three points for possible amplification, filtering etc. in Nyborg, Næstved and Taastrup Monday, August 25, 2003 Long haul 10 G Ethernet 5

Equipment l BATM T 6 switch – l Optillion TOP 5010 -SC Xenpak transceiver Equipment l BATM T 6 switch – l Optillion TOP 5010 -SC Xenpak transceiver – – l Including 10 G Uplink module developed at CERN as part of ESTA 1550 nm optics with maximum reach of 40 km Includes IEEE 802. 3 -2000 PMD BIST capability for BER measurements Optical amp’s and filters Monday, August 25, 2003 Long haul 10 G Ethernet 6

COM lab setup Monday, August 25, 2003 Long haul 10 G Ethernet 7 COM lab setup Monday, August 25, 2003 Long haul 10 G Ethernet 7

Field tests - 1 l Setup using pre-amp at receiver – – – 4 Field tests - 1 l Setup using pre-amp at receiver – – – 4 amp’s in total per link 3 x 80 km DCF (Dispersion Compensating Fiber) Achieved BER <1 E-15 ! • Limited by time shortage Monday, August 25, 2003 Long haul 10 G Ethernet 8

BER curves Monday, August 25, 2003 Long haul 10 G Ethernet 9 BER curves Monday, August 25, 2003 Long haul 10 G Ethernet 9

Field tests - 2 l Setup without using pre-amp at receiver – – – Field tests - 2 l Setup without using pre-amp at receiver – – – 3 amp’s in total per link 3 x 80 km DCF Achieved BER <1 E-12 • Shortage of time limited the experiments on this setup, BER could likely be improved Monday, August 25, 2003 Long haul 10 G Ethernet 10

Picture - Lyngby PC Filter and attenuator DCF Amp’s Xenpak Monday, August 25, 2003 Picture - Lyngby PC Filter and attenuator DCF Amp’s Xenpak Monday, August 25, 2003 Long haul 10 G Ethernet 11

Picture – Næstved and Odense Monday, August 25, 2003 Long haul 10 G Ethernet Picture – Næstved and Odense Monday, August 25, 2003 Long haul 10 G Ethernet 12

Conclusion l Successfully used standard 10 G Ethernet LAN equipment to transmit over 250 Conclusion l Successfully used standard 10 G Ethernet LAN equipment to transmit over 250 km of SMF dark fiber (including optical amplification and DCF) – – – Setup meets 802. 3 ae objective with a BER of 1 E-12, best result is below 1 E-15 Transmitted full-duplex 8 Gb/s real Ethernet traffic using 16 x 1 Gb/s NIC’s and aggregating switch's Measured setup power penalty at 1 E-12 to be 2. 5 d. B Monday, August 25, 2003 Long haul 10 G Ethernet 13

Conclusion – cond. l The successful results prove the possibility to use low-priced Ethernet Conclusion – cond. l The successful results prove the possibility to use low-priced Ethernet LAN equipment for long-haul connections Monday, August 25, 2003 Long haul 10 G Ethernet 14

Future work and use l Initial tests show the possibility to extend the reach Future work and use l Initial tests show the possibility to extend the reach even further – l Experiments could for example make use of the dark fibers continuing to Århus and Aalborg A 10 Gb/s link between SDU in Odense and DTU in Lyngby could for example be valuable as a GRID-to-GRID connection Monday, August 25, 2003 Long haul 10 G Ethernet 15

Questions? Monday, August 25, 2003 Long haul 10 G Ethernet 16 Questions? Monday, August 25, 2003 Long haul 10 G Ethernet 16