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Open Optical Networking Automation Control Platforms scheduling transport slice realization

Pure Research
ST Strategy & Technology
2200000051 Requisition #

Research Engineering Internship at Bell Labs – January 2022

Bell Labs (https://www.bell-labs.com), the corporate research organization of  NOKIA, is welcoming a student internship at Paris-Saclay area to join the Software Defined Networking Control Platform research activities for Future IP & Optical Transport Networks to support new generations of services from 5G and beyond.

The team is performing in Nozay (close to Paris-France) interacting closely with other locations such as Murray Hill (NJ, US), Stuttgart (Germany), Espoo (Finland) and Bangalore (India) and focuses on creating control capabilities through advanced virtualized network functions and transport network operating systems to guarantee the deliveries of secured future cloud services.

You will be integrated in a highly skilled research team of computer scientists, optical physicists and network control experts that work in concert with the NOKIA Business Units on « Technology Breakthroughs ». These technologies have the potential to impact the company’s product roadmaps. Within the team of Bell Labs researchers, you will use and acquire a lot of knowledge on Open Source Software applications for Future Optical Networking control platforms.

Master’s Student Internship:

Title: « Open Optical Networking Automation Control Platforms scheduling transport slice realization »

Context: Optical networks are transforming to offer transport connectivity services per future applications requirements as 5G services-based user applications. However, current transport networking controllers are not automatically involved to support 5th Generations of connectivity services, these connectivity services are also known as end-to-end network slices per 3GPP Technical Specifications.  Data streams of future generation services (i.e., 6G services) will be generated by virtual organization a.k.a. tenants (e.g., over-the-top content providers, virtual network service providers, datacenter service providers, high-performance networked applications such as future automated industries (with robotics, AR/VR), high-definition tele-presence, confidential video conferencing, or others). The challenge is to make future transport networking controllers capable to schedule connectivity services onto optical networks to deliver transport network slices with respect to the requirements of future generation applications. Each optical connectivity service must be designed with respect to optical connection parameters (OTN and WDM), plus its start time, its end time and optionally its repetition rate.

Mission: The mission is to develop network control functions to schedule transport connectivity services (also named transport network slices) realized with optical channel connections (NMC, OTSi and/or ODU). The scheduler algorithms are going to be designed, implemented, experimented and demonstrated using a Bell Labs Network Control platform based on an open-source Software Defined Networking (SDN) controller framework with a Path Computation Engine (PCE) able to configure and monitor Optical Network Equipment including ROADM, Transponders, pluggable Digital Coherent Optical (DCO) systems.

Considering open source data models like Open Networking Foundation (ONF) / Transport-API (TAPI) services, Linux Foundation and ETSI/NFV specifications, the software developments of these control functions will be used to experiment the provisioning of several TAPI Connectivity Services (Network Media Channels, Optical Tributary Signals, High/Low Order Optical Data Units) that are essential to support end-to-end network slices.

Proof-of-Concepts will be built on open operating systems as Linux (e.g., Ubuntu), open source SDN Controller software as OpenDaylight (ODL), open source device data models as OpenConfig, open source transport network service data model as ONF/TAPI to configure ROADM (wavelength switches), in-line amplifiers, open-terminals (Muxponders, Switchponders,Transponders).

Your professional objective is to become a Computer Scientist / Software Engineer who:

  • Is proficient in software development languages and environments such as Java/C++, Go, Python, Maven, Git. 
  • Wants to learn on and contribute to open-source software projects for network control (see OpenDaylight/TransportPCE project, ONOS/ODTN project), on IT resource control and container deployment (e.g., Kubernetes), on Virtual Switches: OvS, on service description languages (e.g., JSON, YAML, TOSCA), on network data models described with YANG (e.g., ONF/Transport-API, OpenConfig),
  • Wants to investigate on how to apply Machine-Learning algorithms on advanced optical networking control platforms set in our laboratory,
  • Is eager to join the Bell Labs research community to create, innovate and realize on new ways to control transport networks in the future.



The objectives are to study, design, implement and realize proof-of-concepts of software for transport network control loop automations.

The candidate may have strong competences in Software development such as Java, or new software languages such as Go on Linux (e.g. Ubuntu, Red Hat Enterprise Linux, CentOS), can have some basic knowledge on Software Defined Networking (SDN) and on 5G application requirements (3GPP).

It will be appreciated if the candidate has knowledge/interests on open source software control platforms: like OpenDaylight, ONF/Transport-API, OpenConfig, YANG data modeling language.

Wanting to learn on standardized network protocols will be very much appreciated such as NETCONF (IETF 6241), IPSec, SSL - as well as to learn on optical network flow controls: flexi-grid optical network, Layer0 flow (optical channel) and Layer1 flow (ODU, tributary/time slot), layer2 flow (Ethernet Virtual Circuit), Service data models (ONF/Transport-API), device data models (e.g., OpenConfig), network topology data models (IETF).


This internship is associated to the scholarship of a student preparing Engineer degree, a Master’s degree or equivalent in Computer Science/Electrical Engineering.

Is motivated to create new design in optical communication network control software, to implement these designs for proof-of-concepts and to present them.

Is keen in building software applications involving a combination of open-source software frameworks and libraries.

Must easily express her/himself fluently in English, both verbally for working within the team (international context), for presentations and for writing of technical reports.

Additional comments on the qualification:

It is an internship for software engineering student with the objective to learn and to develop software defined network control functions for automated optical networks.

Opportunities to learn and to practice experiments on real optical switching devices (ROADMs, Transponders, Routers, Switches) developed by NOKIA business lines can be scheduled during the internship of the student.

Nokia has received the following recognitions for its commitment to inclusion & equality:

  • One of the World’s Most Ethical Companies by Ethisphere
  • Gender-Equality Index by Bloomberg
  • Workplace Pride Global Benchmark
  • LGBT+ equality & best place to work by HRC Foundation

At Nokia, we act inclusively and respect the uniqueness of people.


Nokia’s employment decisions are made regardless of race, color, national or ethnic origin, religion, gender, sexual orientation, gender identity or expression, age, marital status, disability, protected veteran status or other characteristics protected by law.
We are committed to a culture of inclusion built upon our core value of respect.


Join us and be part of a company where you will feel included and empowered to succeed.


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Nokia is an equal opportunity employer that is committed to diversity and inclusion. At Nokia, employment decisions are made regardless of race, color, national or ethnic origin, religion, gender, sexual orientation, gender identity or expression, age, marital status, disability, protected veteran status or other characteristics protected by law.