The GNPy Open Source Library of Applications for Software Abstraction of WDM Data Transport in Open Optical Networks

GNPy is an open source project of the Telecom Infra Project (TIP). It aims at the development of a software library for the abstraction of physical layer data transport, implemented as wavelength division multiplexing (WDM) through open-source code and open APIs, with the purpose of automatizing disaggregated, multi-vendor open optical networks. We first introduce the GNPy library of applications and functionalities, then, we present validation of the GNPy core. The quality-of-transmission estimator (QoT-E) enables a quick and accurate prediction of the unique performance metric in WDM data transport of optical networks: the Generalized Signal-to-Noise Ratio (GSNR). The presented validation experiments show an excellent accuracy in predicting the GSNR compared to the values obtained experimentally. Finally, we present the GNPy integration with the ONOS network OS in a multi-vendor scenario including open reconfigurable add drop multiplexers (ROADMs) and the related validation experiment.

[1]  J. Kahn,et al.  Channel Power Optimization of WDM Systems Following Gaussian Noise Nonlinearity Model in Presence of Stimulated Raman Scattering , 2017, Journal of Lightwave Technology.

[2]  Elizabeth Rivera Hartling,et al.  The subsea fiber as a Shannon channel , 2019 .

[3]  Zifan Zhou,et al.  Alien wavelengths in national research and education network infrastructures based on open line systems: Challenges and opportunities , 2019, IEEE/OSA Journal of Optical Communications and Networking.

[4]  Vittorio Curri,et al.  Selection of Amplifier Upgrades Addressed by Quality of Transmission and Routing Space , 2019, 2019 Optical Fiber Communications Conference and Exhibition (OFC).

[5]  Vittorio Curri,et al.  Open Design for Multi-Vendor Optical Networks , 2019, 2019 Optical Fiber Communications Conference and Exhibition (OFC).

[6]  Vittorio Curri,et al.  Physical-Layer Awareness: GNPy and ONOS for End-to-End Circuits in Disaggregated Networks , 2020, 2020 Optical Fiber Communications Conference and Exhibition (OFC).

[7]  Yawei Yin,et al.  Experimental Validation of an Open Source Quality of Transmission Estimator for Open Optical Networks , 2020, 2020 Optical Fiber Communications Conference and Exhibition (OFC).

[8]  Vittorio Curri,et al.  On the Interplay of Nonlinear Interference Generation With Stimulated Raman Scattering for QoT Estimation , 2018, Journal of Lightwave Technology.

[9]  Roberto Gaudino,et al.  Elastic All-Optical Networks: A New Paradigm Enabled by the Physical Layer. How to Optimize Network Performances? , 2017, Journal of Lightwave Technology.

[10]  Gabriella Bosco,et al.  Design Strategies and Merit of System Parameters for Uniform Uncompensated Links Supporting Nyquist-WDM Transmission , 2015, Journal of Lightwave Technology.

[11]  P. Bayvel,et al.  Investigation of bandwidth loading in optical fibre transmission using amplified spontaneous emission noise. , 2017, Optics express.

[12]  Yawei Yin,et al.  GNPy: an open source application for physical layer aware open optical networks , 2020, IEEE/OSA Journal of Optical Communications and Networking.

[13]  Vittorio Curri,et al.  Physical Simulation Environment of The Telecommunications Infrastructure Project (TIP) , 2018, 2018 Optical Fiber Communications Conference and Exposition (OFC).

[14]  Vittorio Curri,et al.  Multi-Vendor Experimental Validation of an Open Source QoT Estimator for Optical Networks , 2018, Journal of Lightwave Technology.

[15]  Vittorio Curri,et al.  Towards a Route Planning Tool for Open Optical Networks in the Telecom Infrastructure Project , 2018, 2018 Optical Fiber Communications Conference and Exposition (OFC).

[16]  Jan Kundrat,et al.  Opening up ROADMs: a filterless add/drop module for coherent-detection signals , 2020, IEEE/OSA Journal of Optical Communications and Networking.

[17]  Emanuele Virgillito,et al.  Power Control Strategies in C+L Optical Line Systems , 2019, 2019 Optical Fiber Communications Conference and Exhibition (OFC).

[18]  Andrea Fumagalli,et al.  Two-Layer Network Solution for Reliable and Efficient Host-to-Host Transfer of Big Data , 2018 .

[19]  Vittorio Curri,et al.  Networking benefits of advanced DSP techniques and hybrid fiber amplification , 2017, 2017 19th International Conference on Transparent Optical Networks (ICTON).

[20]  Piero Castoldi,et al.  ONOS-Controlled Disaggregated Optical Networks , 2019, 2019 Optical Fiber Communications Conference and Exhibition (OFC).

[21]  R. Cigliutti,et al.  The LOGON strategy for low-complexity control plane implementation in new-generation flexible networks , 2013, 2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC).

[22]  Polina Bayvel,et al.  The Gaussian Noise Model in the Presence of Inter-Channel Stimulated Raman Scattering , 2017, Journal of Lightwave Technology.

[23]  Jan Medved,et al.  OpenDaylight: Towards a Model-Driven SDN Controller architecture , 2014, Proceeding of IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks 2014.

[24]  Andrea Fumagalli,et al.  A Two-Layer Network Solution for Reliable and Efficient Host-to-Host Transfer of Big Data , 2018, 2018 20th International Conference on Transparent Optical Networks (ICTON).

[25]  V. Curri,et al.  Physical layer performance of multi-band optical line systems using raman amplification , 2019, IEEE/OSA Journal of Optical Communications and Networking.

[26]  Josef Vojtěch,et al.  Opening up ROADMs: Let Us Build a Disaggregated Open Optical Line System , 2019, Journal of Lightwave Technology.

[27]  Yan Shi,et al.  Yang model for requesting Path Computation , 2019 .