Transcript Verizon European Backbone

Commercial Deployment of 100G
Ultra-Long-Haul Optical System in
Verizon's Core European Network
Marcel Rijnders
Director EMEA Managed Services
September 20, 2010
© 2010 Verizon. All Rights Reserved. PTEXXXXX XX/10
Verizon European Backbone
Growth Requirements
• Capable to support hybrid capacity growth
– Mix of 10Gb/s, 40Gb/s and 100Gb/s
• High performance and low latency
– Avoid the use of DCMs
• Compatible with existing photonic layer infrastructure
– Expanding system lifetime
– Maintain existing line amplifiers, mux/demux devices and wavelength selective switches
• Toleration to typical physical plant uncertainties
– Mix of various fibre types, connectors, splices, re-routes, etc.
• Service interruption free capacity upgrades
– Avoid major network disruptions and/or high risk maintenance
• Easy reconfiguration with minimal physical labour
– Employ standard Field Operations staff
– Limit logistics and truck loads
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Verizon European Backbone
100Gb/s Production Deployment
• Network Section Paris – Frankfurt
– Ciena DWDM CPL & OME6500, 88 channel DCM-less
– 890 km optical distance
– Utilisation >30 x 10 Gb/s wavelengths
– 13 x amplified spans
– 5 x Raman (loss > 23dB)
– 6 x ROADM with 50 GHz WSS
Paris
890 km
Frankfurt
WSS ROADM
Line Amplifier
Glass-Thru site
CPL Raman Link
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Verizon European Backbone
100Gb/s CoFDM Modem
Transmitter
• Based on commercially deployed 40Gb/s technology
• Data rate 115Gb/s (2 x 14.4 GBaud DP-QPSK)
• Optical subcarrier spacing 20GHz
Receiver
• Optical mixing & electrical LP filtering
• Coherent DSP processing
f-Df
+/- 50,000 ps/nm
~25 ps mean DGD
• Proprietary hard FEC (7% OH, 9.2dB coding gain)
BER = 3.8E-03 corrected to < 1E-15
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50 GHz
f+Df
Verizon European Backbone
Pre-Deployment Testing
• Lab spectrum identical to field
>30 de-correlated 10Gb/s signals
• OSNR margin > 6dB
4.0E-03
FEC limit @ BER=3.8E-3
3.5E-03
channel BER vs. OSNR
3.0E-03
channel BER
2.5E-03
2.0E-03
1.5E-03
1.0E-03
5.0E-04
0.0E+00
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channel OSNR (dB, 0.1nm)
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Verizon European Backbone
Production Deployment
• Operational since December 2009
• No system failures reported
– Pre-FEC BER < 1E-04 (FEC limit = 3.8 E-03)
• Client access 10 x 10GE carrying real time traffic
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Verizon European Backbone
Summary
• Operational and error free 100Gb/s production system
– Minimal field staff training required
– No more than standard care is needed
• Simple (10Gb/s) engineering rules
– No modifications needed in the optical plane
• Very straightforward deployment
– Installation of equipment only at terminal sites
– Highly automated commissioning due to modem training
NEXT
• Further expansion of 100Gb/s channels in Verizon’s backbone
– Enhanced scalability of the Ultra-Long-Haul network
– All routes confirmed for scaling to 100Gb/s
• Deployment of 100GbE client interfaces
– Standard is now defined: IEEE 802.3ba
– Router suppliers ready to deliver Ethernet PICs
• Deployments of 10x10Gb/s Multi-Rate client interfaces
– 10GE, STM64, OTU-2
– Migration of existing lower rate interfaces onto 100Gb/s channels
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Acknowledgments
• Verizon - R. Egorov, C.le Scanve, C. Goedhart, B. Basch, G. Wellbrock, Stu Elby,
• Ciena – Mark Gibbon, Jamie Jefferies, Michel P. Belanger, Bernard Villeneuve,
Mike Moyer, Dave Doucet, John Sitch, Chee Yun Lee; Robert Brimacombe; Yves
Delisle; Kevin McKernan; Ben Rhody; Doug McGhan; Joseph Shapiro; Scott
Warnke; Maurice O’Sullivan
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