Past projects


Lightness Low latency and high throughput dynamic network infrastructures for high performance datacentre interconnects

November 2012 – October 2015

The main objective of the LIGHTNESS project is the design, implementation and experimental evaluation of a high-performance network infrastructure for data centres, where innovative photonic switching and transmission solutions are deployed. Harnessing the power of optics will enable data centres to effectively cope with the unprecedented demand growth to be faced in the near future, which will be driven by the increasing popularity of computing and storage server-side applications in the society. Indeed, the deployment of optical transmission systems leveraging Dense Wavelength Division Multiplexing (DWDM) allows the transmission of more than a hundred of wavelength channels operating at 10, 40, 100 Gb/s and beyond. This effectively results in “unlimited” bandwidth capacities of multiple Terabit/s per fibre link, which can be efficiently utilized through next-generation all-optical switching paradigms like Optical Circuit Switching (OCS) or Optical Packet Switching (OPS). In this context, LIGHTNESS will join efforts towards the demonstration of a high-performance all-optical hybrid data plane for data centre networks, combining both OCS and OPS equipment to implement transport services tailored to the specific applications’ throughput and latency requirements. To this goal, an OPS node suitable for intra- data centre connectivity services will be developed and prototyped during the project, together with an enhanced Top of the Rack (TOR) switch seamlessly connecting servers in each rack to the hybrid OCS/OPS inter-cluster network. As an additional achievement of LIGHTNESS, the OCS/OPS inter-cluster network will be empowered with a network control plane able to dynamically provision flexible connectivity services in the hybrid OCS/OPS data centre network. Such a control plane will also be developed and prototyped for integration in the final LIGHTNESS demo throughout the project.

EULER FP7 project

Domino Experimental UpdateLess Evolutive Routing

October 2010 – June 2014

The main objective of the EULER exploratory research project is to investigate new routing paradigms so as to design, develop, and validate experimentally a distributed and dynamic routing scheme suitable for the future Internet and its evolution. The resulting routing scheme(s) is/are intended to address the fundamental limits of current stretch-1 shortest-path routing in terms of routing table scalability but also topology and policy dynamics (perform efficiently under dynamic network conditions). Therefore, this project will investigate trade-offs between routing table size (to enhance scalability), routing scheme stretch (to ensure routing quality) and communication cost (to efficiently and timely react to various failures). The project will develop appropriate tools to evaluate the performance of the proposed routing schemes on large-scale topologies (order of 10k nodes). Prototype of the routing protocols as well as their functional validation and performance benchmarking on the iLAB experimental facility and/or virtual experimental facilities such as PlanetLab/OneLab will allow validating under realistic conditions the overall behaviour of the proposed routing schemes.


Domino Design and optimization of multi-layer green optical networks

January 2011 – December 2014

The DOMINO project aims at designing novel architecture, algorithms and protocols solutions fulfilling the energy efficiency and awareness requirements of future multi-layer green optical networks. DOMINO leverages the capacities of ultra high dynamic multi-layer optical networks to decrease the ICTs carbon footprint, and relies on five innovative concepts: a thorough analysis of the energetic issues in networks, including the benefits of using novel sub-wavelength switching devices and extending the energy-oriented model to multi-domain scenario; novel network planning strategies accounting for energy, cost and performance metrics; specialised dynamic routing algorithms where multiple constraints such as energy consumption, resource utilisation, and signal quality are optimised; energy-oriented operations and protocols in the network control plane to support the designed strategies and algorithms; dedicated techno-economic studies to evaluate the overall impact the novel concepts have on current network infrastructure and provide a possible migration roadmap.


Cost804 Energy efficiency in large scale distributed systems

23 January 2009 – 4 May 2013
ICT Action IC0804

This COST Action will propose realistic energy-efficient alternate solutions to share IT distributed resources. While much effort is nowadays put into hardware specific solutions to lower energy consumptions, the need for a complementary approach is necessary at the distributed system level, i.e. middleware, network and applications. The Action will characterize the energy consumption and energy efficiencies of distributed applications. Then based on the current hardware adaptation possibilities and innovative algorithms it will propose adaptive and alternative approaches taking into account the energy saving dimension of the problem. The Action will characterize the trade-off between energy savings and functional and non-functional parameters, including the economic dimension.


Strongest Scalable Tunable and Resilient Optical Networks Guaranteeing Extremely-high Speed Transport

January 2010 – December 2012

STRONGEST leverages on the definition of innovative architectures for developing a scalable, resilient and cost-effective transport network, offering ultra-high capacity to the end users in the broadband society of the future. The new architectures will take into account the evolution of the access network technologies, in order to ensure transparent core-access integration, but the studies carried out by the project will focus mainly on the metro and core areas, because these are the part of the network where the main scalability issues are foreseen in the next years.


Fierro Future Internet: Eficiencia en las redes de altas prestaciones

May 2011 – September 2012

FIERRO es una Red Temática que agrupa a 21 Universidades, Centros de Investigación y empresas españolas, que investigan en los retos tecnológicos que la Internet del Futuro (Future Internet) plantea en la red IP de altas prestaciones. Con esto nos referimos a las redes de comunicaciones de alta velocidad, por ejemplo con agregados de tráfico de 10 Gbps en adelante.


Pervasive and Convergent Networking

January 2010 – December 2010

The main goal of this project is to contribute in the design of technologies for a converged and pervasive Internet. The project aims to push new services and protocols into the network considering them as coupled processes. To do that, we will take into consideration four of the most relevant aspects that are currently of interest of the research community in this field. These are the optical transport, the ubiquitous connectivity, the application of a traffic analysis and monitoring techniques for the management and control of the network, and the security of communications. In order to address these aspects the project is structured in the following research activities: Architectures for the Pervasive Networking, Traffic monitoring and analysis, Converged Optical Networking Infrastructure, and Digital Identity and Electronic Signature, which coincide with of the different subareas of expertise of the Broadband Communication Systems research group that traditionally have exploited participating in separated projects.

BONE FP7 project

Bone Building the future optical network in Europe

January 2008 – February 2011

BONE intends to validate the research activities within Europe in the field of optical networks by stimulating intensified collaboration, exchange of researchers and building on Virtual Centres of Excellence.

DICONET FP7 project

Diconet Dynamic impairment constraint network for transparent mesh optical networks

January 2008 – June 2010

DICONET plans to investigate, design, implement and test new routing and wavelength assignment algorithms considering as constraints physical impairments that arise in transparent core networks.


Proyecto coordinado para a evaluación de tecnologías y arquitecturas de redes ópticas

December 2005 – December 2008

The purpose of the CATARO project (a coordinated project for the evaluation o optical networks technologies and architectures) is to continue the studies carried out in two previous projects, namely TRIPODE (IP traffic transport over Optical networks: Designing and Evaluation, Ref.: TIC2002-04344-C02) and CARISMA (Connection and access to RedIRIS2 through a multi-channel optical ring, CICYT TIC2000-0304-P4-04). Thereby, the CATARO project consists of two subprojects, namely SENDERO (Designing and Evaluation of optical network architectures Ref.: TEC2005-08051-C3-01) and RINGING (GMPLS/ASON Intelligent Network: Integration of reconfigurable nodes, Ref.: TEC2005-08051-C3-02), which are summarized next.

COST 291

COST291 Towards Digital Ooptical Networks

July 2004 – June 2008

The COST 291 Action ‘Towards digital optical networks’ belongs to the COST Domain: Telecommunications Information Science and Technology. The primary objective of this action is to focus on novel network concepts and architectures exploiting the features of photonic technologies, to enable future broadband telecommunications networks (access, metro and core). It is aiming to propose a new generation of systems and networks that will accommodate the unpredictable growth of data traffic. The action was initiated by the ‘High-speed networks and optical communications’ group of AIT and Prof. Ioannis Tomkos acts as Action Chairman. More than 28 partners contribute to the activities of the project (including several from new member states).

e-Photon/ONe+ IST project

e-Photon/ONe+ Optical Networks: Towards Bandwidth Manageability and Cost Efficiency

March 2006 – February 2008

The Network of Excellence e-Photon/ONe+ aims at integrating and focusing the rich know-how available in Europe on optical communication and networks, both in universities and in research centres of major telecom manufacturers and operators. This project built upon the experience gained within the previous NoE e-Photon/ONe, funded within the 1st IST call of FP6. The set of expertises available in the NoE ranges from optical technologies to networking devices, network architectures and protocols, new services fostered by photonic technologies.

NOBEL 2 IST project

Nobel2 Next Generation Optical Networks for Broadband European Leadership – phase 2

March 2006 – February 2008

Leveraging all results obtained in phase 1, NOBEL phase 2 will consider the medium-term, long-term and extended long-term scenarios, focusing in particular on the last two, and will face with two major challenges. The first is the evolution of the data plane technology in order to reach an ‘optimum techno-economic balance’ between optical/electrical and circuit/packet routing and switching. The second is the evolution of the network control plane towards an unified control plane that is able of improving the seamless end-to-end network service capabilities in a flexible and scalable way. Moreover, NOBEL phase 2 will consider the opportunity deriving from the convergence of fixed and mobile services, analysing its impact on the metro and core parts of the network. To achieve the overall goals of NOBEL phase 2, the following main objectives were identified.

e-Photon/ONe IST project

e-Photon/ONe Optical Networks: Towards Bandwidth Manageability and Cost Efficiency

February 2004 – February 2006

The proposed Network of Excellence (NoE) aims at integrating and focusing the rich know-how available in Europe on optical communication and networks, both in universities and in research centres of major telecom manufacturers and operators. The set of available expertises ranges from optical technologies, to networking devices, to network architectures and protocols, to the new services fostered by photonic technologies.

NOBEL IST project

Nobel Next Generation Optical Networks for Broadband European Leadership

January 2004 – February 2006

The overall goal of the IST project NOBEL is to find and to validate (experimentally) innovative network solutions and technologies for intelligent and flexible optical networks, thereby enabling broadband services for all.



December 2002 – December 2005

Proyecto nacional sobre nuevas arquitecturas de redes opticas.

LION IST project

Lion Layers Interworking in Optical Networks

January 2000 – March 2003

LION aims at giving answers to Network Operators (N.O.) about interoperability of client transport networks (e.g. ATM, SDH, IP-based) over an optical server one recommended as Optical Transport Network (OTN). In particular, the major target is to design and test over a testbed a multi-layer resilient network in a multi-domain environment. First the N.O. requirements will be defined for envisaged multi-layer network scenarios. Cost-effective integrated resilience strategies will be investigated supported by planning evaluations. The ITU-T functional modelling will be adopted to define first the OA&M and management requirements and then specifications for interfaces between network clients and OTN and between OTN domains. An “umbrella” management architecture that enables integration of TMN, WBEM, and SNMP will be designed to allow N.O. to manage the network as a whole. The above requirements and specifications will be translated into systems and sub-systems implementation to test in a testbed.

DAVID IST project

David Data and voice integration over DWDM

July 2000 – October 2003

Main objective is to propose a Packet-over-WDM network solution, including traffic properties and management, based on optical packets and asynchronous transmission over metro and backbone distances. The project will capitalise on both optics and electronics to find out the optimum combination to reach multi-Tb/s capacity. To cope with the on-going convergence in the transport of voice, data and multimedia applications, the project will also define several classes of service, adapted to optical layer specifics. On the metro side, the project will consider a buffer-less network using a medium access control protocol. The backbone will be based on 10 Tb/s multi-layer (wavelength and packet) opto-electronic medium access control protocol with opto-electronic packet routers, incorporating core and edge functions. Finally, the project will demonstrate highly integrated optical and electronic devices, included in a sub-equipped experimental platform.

COST 266

Advanced Infrastrucutre for Photonic Networks

February 1999 – July 2003

The main objective of the action is to propose and evaluate suitable architectures and identify the key photonic components for the infrastructure of next generation photonic networks and work out alternative scenarios for the evolution towards next generation networks.


Evaluación de la conmutación óptica de paquetes

December 1999 – December 2002

Proyecto nacional sobre la evaluación de las prestaciones de redes basadas en la conmutación óptica de paquetes.