The Dutch research network said today that it has successfully demonstrated a 100G ultra-longhaul DWDM solution from Cisco Systems (NASDAQ:CSCO, news, filings). On a route between the SARA supercomputing site in Amsterdam and CERN to the south in Geneva, SURFnet introduced 100G single carrier optical interfaces into their existing infrastructure without any disruption.
In other words, they mixed and matched wavelengths generated by different gear on the same fiber. That capability promises greater flexibility in leveraging new technology than has been possible in the past.
The test was across 1650km without regeneration, although the system itself is rated for up to 3000km.
SURFnet has been one of the most active research networks in the world in trialing new technology. They went 100G last May based on Ciena gear and built it down to CERN in the autumn on fiber from VTLWaveNet. So that's whose wavelengths were mingling with those of Cisco, most likely.