Softwarized Optical Transport QoT in Production Optical Network: a Brownfield Validation

We compare measured QoT on production network to GNPy predictions, showing an excellent accuracy for 40 channels on two paths. Transmission exceeds 2000 km on mixed-fiber hybrid amplified links. Non-conservative prediction is observed only in 23% of cases and the inaccuracy is limited to 0.3 dB.