OIF Completes Successful 2020 Joint Network Operator, Multi-Vendor Transport SDN API Interoperability Demonstration

Public webinar, read-out events planned for Q1 2021

Fremont, Calif.—December 2, 2020 – OIF today announced the completion of its multi-vendor 2020 Transport SDN Application Programming Interface (API) Interoperability Demonstration. To validate the benefits of transport SDN worldwide and transport network transformation for the 5G era, OIF members participated in a ten-week long interoperability testing exercise in Telefonica’s Madrid lab.

The testing focused on SDN-based programmability, control and automation — testing Layer 1 and Layer 0 OTN control using ONF T-API 2.1.3, with additional testing of OpenConfig device APIs for transport equipment in network-operator-defined use cases.

“Operators have demanded more open optical networks to enable flexibility, lower costs, and best-of-breed options,” said Scott Wilkinson, Lead Analyst at Cignal AI. “Standard management interfaces and multi-vendor interoperability are critical to open optical networks. The interoperability demonstration recently performed under the guidance of the OIF is a major step towards achieving those operator goals.”

Participating vendors included ADVA, Ciena, Cisco Systems, Infinera and Nokia. Network operator Telefonica hosted the demo. China Telecom, Telia and TELUS participated as consulting network operators.

“The successful completion of the OIF 2020 Transport SDN API interoperability demonstration is a significant milestone toward widespread SDN deployment in production networks,” said Arturo Mayoral, Telefónica Transport Global CTIO Unit – Technology Expert and Lead of Optical SDN strategy. “By aligning vendors for a shared purpose – interoperability – and testing multiple use cases, we’re fostering manageability and flexibility in the network to allow deployment of cloud-based services, meet dynamic bandwidth demands and accelerate transport network transformation for the 5G era.”

The much-anticipated results of the multi-vendor demonstration will be revealed during a public read-out webinar event being held in partnership with Lightwave, Tuesday 12 January 2021, 6:00-7:30am PST. Register for free here.

A private read-out event for demo participants and invited Network Operators is scheduled for Tuesday 19 January 2021.

OIF representatives will give presentations on the current status of the 2020 OIF Transport SDN API Interoperability Demonstration during the below events:

NGON & DCI World Digital Symposium – Friday 04 December 2020 – 20:00-20:15pm CET, OIF Speaker: Arturo Mayoral López de Lerma, Telefonica S.A

ECOC – Monday 07 December 2020 – 17:20-17:40pm CET, OIF Speaker: Arturo Mayoral López de Lerma, Telefonica S.A

Additionally, OIF developed an infographic to visually explain the 2020 Transport SDN API Interop Demo. Print and web-ready files can be downloaded here:!AgxJQTMC3jSUiIhCVZzu9vewlRGU0w?e=hl5D3C

A technical white paper and an executive summary of the demo result will be available in Q1 2021.

Additional information can be found at

2020 Transport SDN Application Programming Interface (API) Interoperability Demonstration PR Boilerplate:

Leading the acceleration of the commercialization of transport SDN worldwide and transport network transformation for the 5G era, OIF will bring new use cases and deployment scenarios into Telefonica’s lab to test multi-vendor interoperability of Layer 1 and Layer 0 OTN control using ONF T-API 2.1.3 and OpenConfig Transport APIs. The 2020 Transport SDN Application Programming Interface (API) interoperability demonstration builds on OIF’s previous transport API requirements and interoperability demonstrations which substantiated T-API as the northbound interface (NBI) of choice, establishing a foundation for open, programmable networks that allow network operators to efficiently deliver dynamic multi-domain connectivity services to the market.

About OIF

OIF is where the optical networking industry’s interoperability work gets done. Building on 20 years of effecting forward change in the industry, OIF represents the dynamic ecosystem of 100+ industry leading network operators, system vendors, component vendors and test equipment vendors collaborating to develop interoperable electrical, optical and control solutions that directly impact the industry’s ecosystem and facilitate global connectivity in the open network world. Connect with OIF at @OIForum, on LinkedIn and at


PR Contact:

Leah Wilkinson

Wilkinson + Associates for OIF


Office: 703-907-0010



May 22, 2018  Leah Wilkinson

Demo aimed at accelerating commercialization of Transport SDN

Fremont, Calif.—May 22, 2018 – The OIF (Optical Internetworking Forum) today announced plans for its public read-out events to present the results of the 2018 Software-Defined Networking (SDN) Transport Application Programming Interface (T-API) interoperability demonstration. This year’s demo, in collaboration with MEF, is focused on accelerating the commercialization of Transport SDN through validating the industry leading T-API 2.0 northbound interface (NBI) from the Open Networking Foundation (ONF). ClicktoTweet

The multi-vendor demo includes testing new dynamic behavior use cases and deployment scenarios by network operators CenturyLink, China Telecom, SK Telecom and Telefónica. Participating vendors include ADVA, Coriant, Infinera, NEC/Netcracker, Nokia and SM Optics. Centre Tecnològic Telecomunicacions Catalunya is the participating academic and/or research institution and TELUS Communications is participating as a consulting network operator.

This year’s demo incorporates service provisioning scenarios at the LSO Presto reference point in the MEF LSO architecture, using the MEF NRP Interface Profile Specification (MEF 60), which defines T-API extensions in support of Carrier Ethernet services.

“The OIF multi-vendor interop testing is particularly important to Telefónica’s network transformation. We are anxious to validate T-API as the standard NBI for Transport SDN and announce the results in June,” said Juan Pedro Fernández Palacios, Telefónica.

The results of the demo will be presented during a featured workshop and keynote presentation at NGON & DCI Europe 2018, the world’s leading strategic and technical optical networks event being held in Nice, France, and during two private events at participating network operator labs.

Public Event: NGON & DCI Europe 2018 (Nice, France), Tuesday, June 26, 2018, 10:00am-12:00pm

Optical Masterclass: Speakers will discuss how OIF is assuring interoperability in open, agile next generation optical networks and present updates on critical projects including CEI-56G and CEI-112G, FlexE 2.0, 400ZR and Transport SDN.


  • Welcome & Overview – Dave Brown, OIF President, Nokia
  • Physical & Link Layer Working Group (PLL WG) Overview – Karl Gass, OIF PLL WG Vice Chair Optical, OIF
  • FlexE 2.0 – Dave Ofelt, OIF PLL WG Vice Chair Protocol, Juniper Networks
  • Networking Projects Overview – Lyndon Ong, OIF Market Awareness & Education Committee Co-Chair – Networking, Ciena
  • SDN Transport API Work/Interoperability Demonstration – Jonathan Sadler, OIF Board Member and Networking Interoperability Working Group Chair, Coriant

Additionally, Palacios, Head of Unit at Telefónica, will discuss the demo results and present use cases during his keynote presentation – Transport API: Standardization status, interoperability tests and use cases – on June 27th at NGON.

Invitation-Only: CenturyLink and China Telecom

Two invitation-only read-out events will be held in July. CenturyLink will hold a private read-out event on July 10 in Denver, Colorado and China Telecom will host a private read-out in Beijing on July 19. Members of the media and analyst community interested in attending, please contact

A technical white paper and an executive summary of the demo result will be available in August.

Additional information can be found at


About the OIF

The OIF facilitates the development and deployment of interoperable networking solutions and services. Members collaborate to drive Implementation Agreements (IAs) and interoperability demonstrations to accelerate and maximize market adoption of advanced internetworking technologies. OIF work applies to optical and electrical interconnects, optical component and network processing technologies, and to network control and operations including software defined networks and network function virtualization. The OIF actively supports and extends the work of national and international standards bodies. Launched in 1998, the OIF is the only industry group uniting representatives from across the spectrum of networking, including many of the world’s leading service providers, system vendors, component manufacturers, software and testing vendors. Information on the OIF can be found at


PR Contact:

Leah Wilkinson

Wilkinson + Associates for the OIF


Office: +1-703-907-0010