WHAT IS OSM?

OSM is developing an open source Management and Orchestration (MANO) stack aligned with ETSI NFV Information Models. As a community-led project, OSM delivers a production-quality MANO stack that meets operators' requirements for commercial NFV deployments.

OSM Resources:

OSM White Papers

 

OSM Workshops

 

OSM Videos

 

OSM User Guide

ETSI NFV Alignment

OSM is closely aligned with the evolution of ETSI NFV and provides a regularly updated reference implementation of NFV MANO.

Open Source

ETSI OSM uses well-established tools and methods to develop code under the Apache Public License 2.0.

Open Community

Participation to OSM is open to members and non-members of ETSI, as well as individual developers and end users from all across the globe. Check how to join or learn more about OSM.

RECENT NEWS

Sophia Antipolis, 02 February 2026

ETSI Open Source MANO announces Release NINETEEN, extending it's capabilities for cloud-native native orchestration.

Sophia Antipolis, 09 September 2025

ETSI Open Source MANO announces Release SEVENTEEN, extending it's capabilities for cloud-native native orchestration.

Sophia Antipolis, 15 January 2025

ETSI Open Source MANO announces Release SEVENTEEN, extending it's capabilities for cloud-native native orchestration.

OSM BY THE NUMBERS

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WHAT PEOPLE ARE SAYING

“Operational effectiveness at the edge is critical to a successful 5G strategy and emerging business models for edge-based compute. OSM Release SIX connects edge and core to provide repeatable and reusable services that span the full telco topology and enable both 5G infrastructure and third-party app ecosystems for the edge in VMs and containers.”

Mark Shuttleworth

CEO of Canonical and founder of Ubuntu

“Management and Orchestration (MANO) is, at the same time, one of the key components and most controversial concepts in network virtualization architecture. Telefónica has long been working from the point of view of innovation in its development. A first result and seed of OSM is OpenMANO, a highly functional framework pioneering the first open source NFV Orchestration and Management stack and, currently, a key component of Telefónica’s NFV Reference Lab. By joining this community, we aim to accelerate the development of MANO while recognizing the value of open-source implementations of NFV and a need to harmonize efforts there.”

Antonio Elizondo

Head of Network Virtualisation Strategy and Technology, Global CTO Unit, Telefónica

“OSM has evolved from an interesting PoC into the most promising architecture for orchestrating VNFs, under the multi-vendor, standardized approach that our Telco customers have been looking for. Increased robustness, as well as exciting features that pave the path towards 5G and the Edge, let us build with confidence the second release of our distribution, WhiteNFV Barcelona, in order to cover the increased demand for operator-led, automated NFV deployments.”

Joris Vleminckx

COO Whitestack

“The ETSI OSG Open Source MANO (OSM) initiative will facilitate the development of open source software for management and orchestration of future networks. Knowledge, capabilities and solutions within this area will be of critical importance to Telenor when virtualizing the network for increased flexibility, faster service delivery, rapid innovation and operational efficiency.”

Patrick Waldemar

Vice President, Telenor Research

“Proprietary management and automation approaches have impeded NFV deployments. Service providers recognize the need for a standardized MANO information model delivered in conjunction with an open source MANO platform to cultivate a robust commercial NFV supplier ecosystem. I’m thrilled with the progress OSM has made to meet these needs and its growing industry acceptance.”

Matt Harper

OSM Founding Member, CTO, RIFT.io

Meeting the Challenge of Open Source

Luis Jorge Romero

January 2017

Luis Jorge Romero, ETSI Director General

When ETSI created its first Open Source group last year, many in the industry were surprised. Open Source MANO was ETSI’s first real step into Open Source, although the subject has long been discussed. I would say it was a necessary step for ETSI.

In the past, Open Source was somehow seen as a rival to standards. It wasn’t just that the economic and licensing models were different, the working methods and makeup of the communities were also quite different. Today, however, Open Source is broadly accepted as having its place in almost all areas of software development. Our standards are increasingly implemented in software. Our industry members have embraced Open Source. ETSI needs to evolve in pace with its members.

ETSI’s future lies in our ability to attract new communities and evolve to meet the needs of new members. This includes learning from the experience of others and adapting our ways of working. The world of Open Source has developed tools and processes to aid collaborative development of software by remote developers. Standards development often faces similar problems: building and attracting communities, ensuring quality of work, completeness and meeting time to market demands. We must be prepared to redesign our ways of working to take account of best practice, wherever it may lie.

In the case of Open Source MANO, we needed quickly to learn new ways. We have had to be flexible and adapt our procedures, our support levels and our IT infrastructure to meet the expectations of this new community. We have adopted all the Open Source tools with which the community is used to working. We’ve been willing to push for the success of this group. From the feedback they give me, I think we have succeeded.

ETSI is serious in this new approach. We anticipate that industry may want to follow with other Open Source initiatives in the wake of Open Source MANO. If this is the case, then we’re ready!