As networks grow denser and more dynamic, automation becomes essential. In the Horizon Europe ALLEGRO project, we’ve developed the Lightpath Validation Engine (LP-VE) to enable fully automated, QoT-aware optical lightpath deployment using a Physical Layer Digital Twin (PHY-DT).
🔁 How it works:
The SDN controller, with its global network view, orchestrates:
➡️ Transceivers (TRXs)
➡️ Reconfigurable Optical Add/Drop Multiplexers (ROADMs)
➡️ Optical Multiplex Section (OMS) models from the OMS controller
🔧 During lightpath provisioning:
- Routing and wavelength assignment (RWSA) identifies potential LPs
- LP-VE uses the PHY-DT (powered by GNPy + telemetry insights) to simulate the lightpath
- Effective GSNR is compared against TRX thresholds
- The maximum feasible data rate is selected — factoring in uncertainties like splice losses, PDL, and filtering penalties
📊 Beyond QoT:
LP-VE also evaluates:
✔️ End-to-end propagation latency (from GNPy)
✔️ Energy consumption (from telemetry data)
💡 With LP-VE, we move toward a future where optical networks can self-validate, self-adjust, and intelligently deploy lightpaths with minimal human intervention.
#AllegroProject #LPVE #LightpathValidation #DigitalTwin #OpticalNetworking #SDN #QoT #Telemetry #NetworkAutomation #HorizonEurope #AIinNetworking #EnergyEfficientNetworking
