Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

GNPy model of the physical layer for open and disaggregated optical networking [Invited]

Not Accessible

Your library or personal account may give you access

Abstract

Networking technologies are fast evolving to support the request for ubiquitous Internet access that is becoming a fundamental need for the modern and inclusive society, with a dramatic speed-up caused by the COVID-19 emergency. Such evolution needs the development of networks into disaggregated and programmable systems according to the software-defined networking (SDN) paradigm. Wavelength-division multiplexed (WDM) optical transmission and networking is expanding as physical layer technology from core and metro networks to 5G $x$-hauling and inter- and intra-data-center connections requiring the application of the SDN paradigm at the optical layer based on the WDM optical data transport virtualization. We present the fundamental principles of the open-source project Gaussian Noise in Python (GNPy) for the optical transport virtualization in modeling the WDM optical transmission for open and disaggregated networking. GNPy approximates transparent lightpaths as additive white and Gaussian noise channels and can be used as a vendor-agnostic digital twin for open network planning and management. The quality-of-transmission degradation of each network element is independently modeled to allow disaggregated network management. We describe the GNPy models for fiber propagation, optical amplifiers, and reconfigurable add/drop multiplexers together with modeling of coherent transceivers from the back-to-back characterization. We address the use of GNPy as a vendor-agnostic design and planning tool and as physical layer virtualization in software-defined optical networking.

© 2022 Optica Publishing Group

Full Article  |  PDF Article
More Like This
GNPy: an open source application for physical layer aware open optical networks

Alessio Ferrari, Mark Filer, Karthikeyan Balasubramanian, Yawei Yin, Esther Le Rouzic, Jan Kundrát, Gert Grammel, Gabriele Galimberti, and Vittorio Curri
J. Opt. Commun. Netw. 12(6) C31-C40 (2020)

Experimental validation of GNPy in a multi-vendor flex-grid flex-rate WDM optical transport scenario

Andrea D’Amico, Elliot London, Bertrand Le Guyader, Florian Frank, Esther Le Rouzic, Erwan Pincemin, Nicolas Brochier, and Vittorio Curri
J. Opt. Commun. Netw. 14(3) 79-88 (2022)

Advances in SDN control and telemetry for beyond 100G disaggregated optical networks [Invited]

Ramon Casellas, Ricardo Martínez, Ricard Vilalta, Raul Muñoz, Alfredo González-Muñiz, Oscar González de Dios, and Juan-Pedro Fernández-Palacios
J. Opt. Commun. Netw. 14(6) C23-C37 (2022)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (11)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (14)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved