Welcome to gnpy’s documentation!

gnpy is an open-source, community-developed library for building route planning and optimization tools in real-world mesh optical networks.

gnpy is:

• a sponsored project of the OOPT/PSE working group of the Telecom Infra Project.

• fully community-driven, fully open source library

• driven by a consortium of operators, vendors, and academic researchers

• intended for rapid development of production-grade route planning tools

• easily extensible to include custom network elements

• performant to the scale of real-world mesh optical networks

Documentation

The following pages are meant to describe specific implementation details and modeling assumptions behind gnpy.

• The QoT estimation in the PSE framework of TIP-OOPT
  • QoT-E including ASE noise and NLI accumulation
  • The Gaussian Noise Model to evaluate the NLI

Indices and tables

• Index

• Module Index

• Search Page

Contributors in alphabetical order

Name	Surname	Affiliation	Contact
Alessio	Ferrari	Politecnico di Torino	alessio.ferrari@polito.it
Anders	Lindgren	Telia Company	Anders.X.Lindgren@teliacompany.com
Andrea	d’Amico	Politecnico di Torino	andrea.damico@polito.it
Brian	Taylor	Facebook	briantaylor@fb.com
David	Boertjes	Ciena	dboertje@ciena.com
Diego	Landa	Facebook	dlanda@fb.com
Esther	Le Rouzic	Orange	esther.lerouzic@orange.com
Gabriele	Galimberti	Cisco	ggalimbe@cisco.com
Gert	Grammel	Juniper Networks	ggrammel@juniper.net
Gilad	Goldfarb	Facebook	giladg@fb.com
James	Powell	Telecom Infra Project	james.powell@telecominfraproject.com
Jan	Kundrát	Telecom Infra Project	jan.kundrat@telecominfraproject.com
Jeanluc	Augé	Orange	jeanluc.auge@orange.com
Jonas	Mårtensson	RISE Research Sweden	jonas.martensson@ri.se
Mattia	Cantono	Politecnico di Torino	mattia.cantono@polito.it
Miguel	Garrich	University Catalunya	miquel.garrich@upct.es
Raj	Nagarajan	Lumentum	raj.nagarajan@lumentum.com
Roberts	Miculens	Lattelecom	roberts.miculens@lattelecom.lv
Shengxiang | Zhu		University of Arizona	szhu@email.arizona.edu
Stefan	Melin	Telia Company	Stefan.Melin@teliacompany.com
Vittorio	Curri	Politecnico di Torino	vittorio.curri@polito.it
Xufeng	Liu	Jabil	xufeng_liu@jabil.com

---

• Goal is to build an end-to-end simulation environment which defines the network models of the optical device transfer functions and their parameters. This environment will provide validation of the optical performance requirements for the TIP OLS building blocks.

• The model may be approximate or complete depending on the network complexity. Each model shall be validated against the proposed network scenario.

• The environment must be able to process network models from multiple vendors, and also allow users to pick any implementation in an open source framework.

• The PSE will influence and benefit from the innovation of the DTC, API, and OLS working groups.

• The PSE represents a step along the journey towards multi-layer optimization.