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User Advisory Group

The OpenDaylight Advisory Group has been established to assist and support OpenDaylight in its objectives by providing technical and strategic guidance to the OpenDaylight Technical Steering Committee and OpenDaylight developer community based on challenges of running a real-world network. For more information, please see the Advisory Group page on the wiki.

Beau Williamson

Beau Williamson is 10+ year Cisco Certified Internetwork Expert and an award winning IP network engineer who has over 10 years of experience in IP networking and over 20 years of general networking experience. He has extensive experience with the design, implementation and troubleshooting of IP networks carrying Stock Market data for use by Financial Institutions, high-rate video for Video service providers, and strategic and tactical data for the U.S. Department of Defense, to name just a few. Beau is a Principal Member of Technical Staff at T-Mobile.

Brian Freeman

Brian Freeman, an AT&T Fellow, is a software architect/systems engineer with over 25 years’ experience in emerging service technologies and large system design and delivery.

Brian is currently leading the architecture and design efforts for the AT&T Software Defined Network Controller.  The SDN Controller platform is a key part of the AT&T Domain 2.0/ECOMP  archetecture in both implementing new control plane logic into the AT&T network and exposing that control in a robust and secure manner to AT&T’s customers.

Past experience has included large scale centralized control platforms, IP inventory and configuration management systems, VoIP services, Big Data Analytics, Cable subscriber management systems and AT&T U-Verse end to end service path management.

Brian received his BS in Electrical Engineering from Rensselaer Polytechnic Institute and MS in in Electrical Engineering from Rutgers. 

Carlos Matos

Carlos has been with Fidelity Investments for 15 years in multiple areas including Operations, Engineering, and Architecture. Currently as Director of Global Network Architecture, in addition of being the Architect for the External infrastructure (Internet and Extranet), he leads the emerging technologies, (NSV/NFV) Network Service/Function Virtualization, and (SDN) Software Define Networking Programs.
Carlos has been the Network Architect for the Click-to-Compute private cloud project from its inception, overseeing the entire design, automation of network Services, and creation of Network self-service offerings for LBaaS, FWaaS, etc. He was also part of the group who designed the Next generation data center, next generation firewall, NG monitoring projects among many others.
While taking  a leave from Fidelity to later return,  he worked as a Chief Architect as part of the Divx Professional Services group,  consulting, designing, and deploying  video over IP and Content Delivery Networks for Fortune 100 Companies.
Prior to Fidelity Carlos worked for The Venezuelan Revenue Service,  and Verizon Wireless as Chief Internal Auditor among other positions.
He has a bachelor degree in Business, and Management of Information Systems from the University JMV, Venezuela, and an MS in telecommunications and Data Networks from the University of Colorado at Boulder.

Chris Luke (Chairperson)

Chris is a technologist who currently concerns himself with the architecture and practical application of programmable behaviors in the Comcast network. As a Sr. Principal Engineer within the Network Architecture group, Chris is building the framework for network automation which provides the foundation for Comcast’s SDN strategy. Chris also actively acts as teacher and mentor for internal training programs aiming to give network engineers the skills and mental tools to operate in a more software-driven world. Chris joined Comcast in 2011. Prior to Comcast, Chris was the Principal Technologist at Easynet Global Services where he developed the architectural foundations for their global multi service network and its support systems. Chris is an active open source participant with code contributed to several well-known projects, including Linux, FreeBSD, Open vSwitch, Bird, Quagga and others.

Dai Kashiwa

Dr. Dai Kashiwa is the Director of Technology Development at NTT Communications, where he leads a number of incubation and software development projects using SDN/NFV technologies.

After he joined NTT, he was involved in research including network management systems, network security, Active Networks, and received his Ph.D. in 2003. Since 2004, he has worked for NTT Communications, where he developed business network services including video broadcasting, dynamic VPN and SDN services.

He has been a board member of ONF (Open Networking Foundation) since 2015 and a board member of ONOS (Open Network Operation System) project since 2016.

Daniel Bernier

Daniel is a senior technical architect within the network strategy group at Bell Canada. His role involves researching new approaches to solve network challenges and collaborate with the rest of Bell Canada’s architecture teams to help evolve Bell’s network. His domains of research are programmable data planes and SDN controllers with practical use cases such as service function chaining. Prior to this role, Daniel was part of the Bell Business Market delivery group, building architectures for Bell Canada’s enterprise customers while researching innovative ways to solve customer challenges. He has been involved in the ODL project since it’s alpha stage.

Dr. Pedro A. Aranda Gutiérrez

Dr. Pedro A. Aranda Gutiérrez, formerly of Telefonica, obtained his Telecommunications Engineering degree in 1988 at the Universidad Politécnica de Madrid and his PhD in 2013 at the Universität Paderborn with a thesis on BGP-4 anomalies. He joined Telefónica, Investigación y Desarrollo in 1989, where he started designing hardware modules for Telefónica's experimental ATM demonstrator. He then moved on to design inter-domain IP networks for the Telefónica group. During all his professional life he has been involved in different international collaborative projects of the different framework programmes of the E.U.

Most recently he worked at the Network Innovation & Virtualisation directorate at the GCTO Unit of Telefónica I+D in the Technology Exploration Group. As Technical Manager of the NetIDE and Architect of the Trilogy2 EU-funded projects, he worked on control plane evolutions like OpenFlow and SDN in general as well as their interaction with Cloud Management frameworks.

Dr. Xiongyan Tang

Dr. Xiongyan Tang is now the Chief Technologist and CTO for network technology at China Unicom Network Technology Research Institute, vice chairman of China Communication Standardization Association (CCSA) TC10. He has more than 20 years of experience in telecommunication technologies. He received his Ph.D degree in telecom engineering from Beijing University of Posts and Telecommunications in 1994. From 1994 to 1997,he conducted research of high-speed optical communications in Singapore and Germany. Since 1998, he has been working on technology management in telecom operators in China. His professional fields include optical and IP networks, broadband communications, SDN/NFV and new generation networks. He’s now in charge of research and planning of broadband network and SDN/NFV in China Unicom.

Gert Vanderstraeten

Gert is a Network Architect in Microsoft's IT organization. His main responsibility is development of strategy for improving the interaction between the network infrastructure and real-time services that are relying on it. He focuses on providing the right user-experience while increasing efficiency and agility by exploring technologies like SDN and NFV, keeping cloud and mobility as a strategic direction in mind.

Prior to Microsoft Gert worked 16 years at Cisco as a Technical Leader and member of technical staff. He has 20 years of experience with troubleshooting, implementing, designing and architecting collaboration solutions while guiding the largest global enterprise customers from legacy communication systems towards full IP environments.

Gert received a Master's degree in Engineering from the U-Hasselt University, Belgium and a Master in Management from the KU Leuven University, Belgium. He holds an active CCIE in the Collaboration track, obtained VMware certification (VCP-DCV) and is a Master ASE (Accredited Systems Engineer) - Network Infrastructure from HP.

Harvey Newman

Harvey Newman (Sc. D, MIT 1974) is a Professor of Physics at the California Institute of Technology, where he has been a faculty member since 1982. He is a Fellow of the American Physical Society, and served as Chair of the APS Forum on International Physics in 2011. Newman co-led the MARK J Collaboration that discovered the gluon at the DESY laboratory in Hamburg in 1979, and was part of the team that discovered the Higgs boson at the Large Hadron Collider at CERN in 2012. His current activities in physics include searches for new Higgs particles, supersymmetry, and other exotic new phenomena at then LHC, and the development of new particle detector technologies. Between 1998 and 2008 he was Chair of the Collaboration Board of the U.S. contingent of the CMS experiment, and he now chairs the US LHC Users Association.

In addition to his roles in physics discoveries over the last 40 years, Newman has had a leading role in the strategic planning, development, operation and management of international networks and collaborative systems serving research and education since 1982. He was a member of the Technical Advisory Group for the NSFNet in 1986. He designed the globally distributed Computing Model used by the LHC experiments in 1998. He now represents the science research community on the Internet2 Network Policy and Operations Advisory Group. Together with ESnet and other major research and education network partners, he and his Caltech team are now  developing the LHC Open Network Environment (LHCONE). Newman leads the international consortium that has set numerous wide area network throughput records at the annual Supercomputing conferences since 2002. His team has been developing new uses of dynamic software defined network technologies over 100 Gbps to 1 Tbps national and international networks since 2012, including work on Open Daylight since 2014.

Since 2002, as Chair of the ICFA Standing Committee on Inter-regional Connectivity, Newman has  worked to foster greater equality of opportunity to scientists and students in many regions of the world through the development of modern regional and international network and grid infrastructures, in collaboration with physics groups and networks in Brazil, Mexico, Pakistan, India, Romania, Slovakia and China. For this work he was awarded Doctor Honoris Causa degrees by the Politechnica University in Bucharest, Romania, and Pavel Jozef Safarik University in Kosice, Slovakia in 2007, and he received the “Jose Bonifacio” medal of the State University of Rio de Janeiro in 2009.

Jamil Chawki

Dr Jamil Chawki leads cloud computing and future networks standardization department (SDN and NFV) at Orange. Before this position, Jamil was a deputy director of Enterprise 2.0 research program working on Software as a Service marketplace architecture for France Telecom. In 2004 he was in charge of the first Fibre To The Home ‘FTTH’ Triple Play pilot project for Jordan Telecom. From 2000 to 2002, Jamil was Chairman and CEO of a fixed telecom operator ‘Ogero Telecom’. His main responsibilities were to manage the network and Information System (OSS/BSS) restructuring and to supervise the implementation of the first Gigabit Ethernet network in the Middle East region.

Before 2000 he worked for 10 years as an R&D engineer and manager in the field of optical WDM and IP transport networks at France Telecom. He published numerous technical IEEE/IET papers and holds over 15 patents. In addition, he is an active contributor to the cloud computing Blog of Orange Business Services.

Jamil is currently chairman of ITU-T cloud computing working party and was convenor of the collaborative teams between ITU-T and ISO/IEC JTC1 on cloud computing vocabulary and reference architecture.

Jay Etchings

Director of Operations, Research Computing, and Senior HPC Architect at Arizona State University, Jay Etchings is a well-known industry professional with 20 years of progressively versatile, cross-platform experience in management of open systems architecture. With the bulk of a 10 year technical consulting career spent in gaming and connected lotteries, emerging network technologies have been a longtime passion deploying the first of its kind, next generation WAN connected Class 2 Lottery System. As an audit contractor for the centers for Medicaid/ Medicare (CMS-RAC) he focused on DISA-STIG compliance and networked systems.

Currently Etchings and his team are deploying campus wide SDN-Biomedical Informatics Networks on Internet2 supporting inter-intra university NSF funded projects as well as international research efforts such as ICTBIOMED.

Jiajin Gao

Jiajin Gao has been with telecom industry for 20 years and held various leadership positions spanning R&D, Planning, Engineering, Marketing and Operations. He is currently the Deputy General Manager of China Mobile Technology (USA), the Silicon Valley Research Center for China Mobile, where he leads the emerging network technologies including SDN/NFV projects. Jiajin received his BS and MS in Electrical Engineering from University of Electronic Science & Technology of China, and MBA from China Europe International Business School.

Johan Gustawsson

Johan Gustawsson is a Network Architect at Telia Company Group, a service provider headquartered in Stockholm with presence in a host of countries through different brands and home to one of the world’s most extensive (Tier 1) IP backbones. He is currently focusing his efforts on Software Defined Networking (SDN) architecture and design for, and across, different domains - including Network Function Virtualization (NFV) environments.

Johan holds a degree of Science in Engineering from the Royal Institute of Technology and is an active CCIE in the Service Provider track. Prior to joining TeliaSonera, he worked with technical development of service provider networks in areas such as emerging technologies, automation, IPv6, BNG, BGP and MPLS applications.

Jon Beasley

Jon gained his degree in Electronic Computer Systems in 1995. Since then he has worked extensively in the network communications field, working for Service Providers and large Enterprises, clocking up 20 years of experience. Jon holds the Cisco CCIE qualification and joined Thomson Reuters, the world’s leading source of intelligent information for businesses and professionals, in 2012. He currently holds the position of Principal Architect with responsibility for the architecture and strategic direction of the Thomson Reuters client distribution network. Jon enjoys software development, in particular web development using javascript and the MVC and .NET frameworks. He works on personal software projects in his spare time. He is constantly looking for ways in which software and automation can be used to increase the agility and efficiency of the enterprise and has a keen interest in exploring the potential of SDN and NFV technologies.

Kevin Brackpool

Kevin is a Network Architect within the Network Virtualization team of the Vodafone Group Technology - Strategy and Architecture department. The teams focus is the introduction of network virtualization technologies (SDN, NFV, automation/orchestration etc.) within, and between, the various Vodafone operating companies which comprise Vodafone's international footprint. Kevin has an extensive knowledge of networking, mobile and fixed access technologies based on over 30 years’ experience and holds a BSc Honours degree in Mathematics.

Liang Ou

Liang Ou is the project manager of Data Network Communication Division in China Telecom Guangzhou Research Institute (GSTA). Currently, he works on enabling SDN/NFV technologies in fixed broadband IP network. Prior to this, he was responsible of CT’s R&D on intelligent carrier grade metro/backbone IP network, network planning and innovative networking services based on Internet technologies. He received Ph.D. degree in electronics and information engineering at Huazhong University of Science and Technology, Wuhan, China.

Mazen Khaddam

Mazen Khaddam is an industry expert in IP network architecture and planning.  Mazen is currently working at Cox Communications as a Principal lead Architect, where he has been leading the IP & transport architecture & Engineering  group for past 20 years.

As principal & lead networking architect, my areas of expertise are:

Software Defined Networking in the WAN & metros
Multilayer Active Stateful Path Computation Element
Shared Mesh Protection & Restoration
Multilayer network optimization (packet & optical layer)
Multilayer network reliability
Multilayer network dimensioning
Multilayer network modeling & simulation
Segment Routing
Optimizing Routing Protocols

Mazen has more than 20 years of experience in the communication fields and has a masters and bachelor degree in electrical engineering from the University of South Florida.  Mazen is a prominent speaker in conferences and has a high regard in the industry.


Ralf Trezeciak

Ralf is an Network Architect of the Architecture Department in Deutsche Telekom Technik, where he is focused on cloud SDN and NFV architectures for data centers. Previously, he was a Network Engineer at Deutsche Telekom. He has spent over a decade working on data center networking including IP multicast environments for IPTV. He has a PhD in Physics and is looking for open source based software solutions and a generic SDN solution to be used by many environments requiring complex real time networks.

Tetsuya Nakamura

Tetsuya Nakamura serves as Principal Architect, Strategy and Innovation Group at CableLabs. Tetsuya is leading CableLabs’ open source research efforts on NFV and SDN, and the Board member of OPNFV. Before joining CableLabs, Tetsuya worked at NTT for about 17 years. While at NTT DOCOMO, Tetsuya was in charge of NFV investigation for mobile networks, and actively involved in the ETSI NFV ISG as ISG Vice Chair, Vice Chair of Technical Steering Committee, and Chair of Software Architecture WG. Also, Tetsuya was a founder of OPNFV and the initial Board member for NTT DOCOMO. Tetsuya received B.S degree in Physics from Kyoto University and M.E degree in Engineering from The University of Tokyo.

Wade Shao

Wade Shao, Principle Engineer for Tencent's network platform department, Wade is responsible for Tencent's network system R&D as well as network research on cutting edge technologies.