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Traffic demand is increasing dramatically, year on year, with typical growth figures of up to 60% for Internet based traffic. Such traffic increase is impacting on both network costs and power consumption. Moreover, traffic is not only increasing but becoming much more dynamic, both in time and direction. For these reasons, transport network evolution from current DWDM systems towards elastic opti ...

Internet traffic has been growing quickly for many years, despite adverse economic conditions and this growth will continue in the future. To cope with this evolution, the cost of today's network solutions is still too high.In addition, in line with the EC goal of reducing the overall emissions, energy efficiency should be widely improved, using whenever possible optics instead of electronics wher ...