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The Networks & Performance Analysis Group at LIP6/CNRS

The University Pierre & Marie Curie (UPMC : is the largest Scientific and Medical University in France: 4 000 Faculties, 3 000 technical and administrative staff, 30 000 students among them 10.000 in Msc and PhD Degrees, 700 scientific PhDs do graduate per year, 15 000 publications on average in a 4 year period. It is located downtown Paris. LIP6 ( ) is one of the largest computer science laboratory in France (>350 researchers) covering a wide spectrum of topics ranging from theoretical computer science to VLSI, among them, the Network and Performance Analysis group covers issues related to networking. LIP6 is a lab associated with CNRS (National Scientific Research Center).

The Networks and Performance Analysis (NPA) group aims at developing a vision for the future Internet as well as designing solutions to shape and manage it. The target ofthe group is the control of ubiquitous, mobile and versatile networks that expand everywhere in our private and professional environments. The core of our work concerns problems related to multimedia and mobile networks, resource management, scalability, ambient networks and peer-to-peer. Moreover, significant work is developed in the area of Internet measurement, modelling and virtual reality.

We are established since the early ò•–80s, and have developed a strong experience in networking design and analysis. We have contributed to many emerging technologies with an emphasis on modelling, internet protocol design and more recently mobility.

The main projects of the group have addressed various critical issues in networking, among them :

Quality of service and traffic engineering, modelling and simulation of packet networks

Our background comes from queuing systems, simulation and networking. Therefore, we have been early involved in the analysis of emerging protocols and the design of mechanisms to improve their behaviour as well as maximize the network resources. This activity has conducted to a continuous work in traffic engineering (IP or ATM), network modelling (both mechanisms and protocols), QoS architecture design (queue management, shaping, scheduling) and finally, protocol development and test-beds (IP switching, DiffServ, IPv6).

Network measurement and tomography

We have initiated in France the Metropolis project in close cooperation with LAAS thanks to a tight teamwork with the leading research group worldwide in this area (Sprint ATL). This initiative is currently an RNRT project that associates the most active groups in network measurements. It has also played a significant role as a meeting place for researchers coming from other backgrounds with strong interest in data analysis (graph theory, signal processing, information theory). The association of these skills will allow us to address new emerging challenges in various networking areas (mobility, security, modelling).

Routing : multicast, mobility, ad-hoc, large-scale, peer-to-peer

Routing is the key issue in networking and enables the success of the internet by providing connectivity to a large set of end-users. However, a stronger stress is expressed on this basic function as new requirements emerge. Routing can be considered as a transfer function between the address of the destination and the location of that given host in the addressing space. Therefore, the routing algorithm is completely dependant of the addressing structure. As a consequence, routing to mobile hosts (hosts move in space), routing to a group of host (multicast, where hosts moves in time), or both is a complex task for todayò•—s Internet. Routing in a large-scale network where a large set of hosts is mobile as in pervasive networks is therefore a critical issue.

Mobility management

Wireless and mobile networks pop up in many places, hopefully leading to ubiquitous internet-based communication and contributing to broadband access. Naturally, traditional issues related to quality of service, security, management have to be extended to mobile users and wireless nets. However, new approaches can be adopted, taking into account the characteristics of the link layer, enabling to design self-configured, peer-to-peer like infrastructures or to extend content delivery to such systems.

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ENST (Télécom Paris)
A pioneering institution in the area of Information Technologies

The school was founded more than a hundred years ago and is classed among the Grandes Ecoles dò•—IngÓŠnieurs.

Because of its high scientific standards and the extremely competitive admission procedures, ENST can be compared to the highest level engineering schools and universities that one would find abroad.

ENST is one of Franceò•—s leading graduate engineering schools and is considered the leading school in the field of Information Technologies.

Its disciplines include all the sciences and techniques that fall within the term "Information and Communications": Computer Science, Networks, Communications, Economics and Business, Electronics, Signal and Image Processing, Social and Human Sciences as well as the study of economic and social aspects associated with modern technology.

Programme objectives

The two guiding principles of ENST educational policy are providing engineering training of the highest standards and developing centres of excellence in research. ENST provides training and education in all the sciences and technology related to Information Technologies. Its students develop the skills needed to design, to develop, to operate and to manage information processing and transmission systems, skills that are also necessary to assess networks and information systems strategically. Both training and education are stimulated by the high level research activities conducted by the school. ENST also places great emphasis on developing the human and social qualities of the future engineers it produces, as well as their understanding of economics and management skills. In view of their future careers, students will acquire the special skills that will enable them to work in multi-lingual and multi-cultural environments. They must dispose of an excellent command of English and practical knowledge of a second language.

Student body and faculty

ENST today has a faculty of about 150 full-time staff(full professors, associate and assistant professors), over 200 part-time lecturers and a student body of about 1000 students (including 750 in the three year diploma program, 100 in one of the Masterò•—s level programs, and 200 PhD students. ENSTò•—s four scientific departments carry out research and teaching activities in the schoolò•—s central areas of expertise:

Department of Communications and Electronics,
Department of Computer Science and Networks,
Department of Signal and Image Processing,
Department of Economics and Social Sciences.

The Department of Modern Languages and Cultures (LC) provides students with the skills to carry out a successful international career. Teaching is on a term basis.

As part of their schooling, ENST students are strongly advised to spend a period abroad. They can do this by carrying out a placement or by enrolling in a degree programme in a foreign university. Placements abroad can be either for short periods (2 months), between a studentò•—s first and second year, or longer more technical placements, generally carried out at the beginning of the studentò•—s third year. The latter are generally between five and six months long, during which time the students carry out their first real engineering project. Over 50% of the third year students go abroad to do their project work. They virtually cover the globe. In descending order, the most distant destinations are the U.S, Canada, Australia, Japan and China. Europe attracts a third of final year students, in particular Great Britain, Scandinavia, Germany, Spain and Italy.

ENST welcomes qualified foreign engineering students in its own laboratories and also organises for them placements with partnercompanies.


ENST's scientific policy is in phase with the rapid evolution of the Information Technologies sector and the central role played by networks and information systems today. Over the last few decades, ENST has gained a recognised position internationally in its technical domains. In addition to working on developments in the basic sciences, research at ENST also aims at broadening its field of study, moving in particular towards systems integration, innovative services on the internet and in other media, and the analysis of usersò•— communication practices and their social impact. ENST thus covers all aspects of Information Technologies.

ENST is committed to maintaining an optimal balance between scientific research, where themes remain fairly stable, and applied research, which changes more rapidly. Research projects are organised principally in collaboration with universities and major research groups, notably the CNRS (Centre National pour la Recherche Scientifique). Applied research is pursued through contractual agreements between ENST and its corporate partners.

ENST laboratories belong to GET (Groupe des Ecoles des TÓŠlÓŠcommunications) Research, a single research organisation that also includes the laboratories of ENST-Bretagne and INT.

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New principles in defence and security communities

A New World order is emerging. As professional security and armed forces adapt to their changing roles, government contractors and their customers are applying new principles and adopting finding new ways of working together.

As a vanguard of these new principles, we do more than provide a full spectrum of advanced information and communications products, systems and services to the armed forces and to home-land security newÒ« actors. We also have the capacity to shape the defence and security communications of tomorrow by proposing bold new solutions:

Delivering best-in-class technology on time and on budget,
Adapting commercial technologies to military requirements,
Designing system architectures, protocols and standards to improve connectivity and interoperability in the digitised world.

Nine thousand employees at THALES Communications are dedicated to building this vision into a reality. Find out what they're building for you.

Clear vision and strategy

Our ambition is to be the overall systems architect and prime contractor for your communications and information systems. To achieve that vision, we propose solutions that are comprehensive, flexible and open-ended.
Our strategic goal is to provide you with seamless information and communications systems that are interoperable, hardened and highly secure. And we are leveraging civil information technologies and software-defined radio technology to make your systems more flexible and even more interoperable.

Prime contractorship and customers services
Fixed and mobile network security and inter-operability to meet your operational requirements
A complete spectrum of internationally accepted products

Sharing innovation

Our multi-domestic model is designed to create the local value-added you have a right to expect with each of our local companies and joint ventures offering mission-critical skills in system architecture and integration.
Each of our country operations is a centre of excellence focused on technologies and developments. The local companies throughout THALES benefit from research by all Group companies for their own development and their local market.
Cross-functionality and systematic re-use, the mainstays of the Group R&D policy provide economies of scale and generate efficiencies.

Partnership for the future
Complementary areas of expertise

9000 people working for you

Throughout Europe, we are working with programme teams for more than 100 client countries.
THALES Communications has well-established industrial operations in the nine European countries that account for 90% of Western Europe's combined defence budget. And our proven ability to set up responsive, trans-national is a great opportunity for customers and users alike.

Global presence in America, Asia, Australia, and South Africa

Partnership in a state of mind

Long-term industrial and research partnership bring us access to local growth markets, major international programmes and advanced technology, optimising costs to make our products and services more competitive.
In France, CNRS, Pierre & Marie Curie University, THALES and 6WIND have set up Euronetlab, a joint research laboratory focusing on the Internet of the future. Euronetlab will develop web-based solutions for both enterprise information systems and tactical Internet applications.

Fundamental Research in THALES

The THALES Group handles itscorporate-level advanced research with the TRT (THALES Research and Technology) laboratories in France, the UK and the Netherlands. More than 600 people are involved in:

Signal processing
Mathematics & algorithms
System and software development Process and Tools
Mission-Critical applications frameworks.

TRT co-ordinates the research performed within the Business Units and manages some detached laboratories that aim common research domains with the TRTteams.

Research and Development in THALES Communications

THALES Communications host detached laboratories in France, Norway, and the UK dedicated to communications components, devices, and software.
They address 3 major research domains:

Wireless communications, including satellite,
Communication and Networking software
Security of computers and networks.

THALES Communications supports the academic partners of Euronetlab, LIP6 and ENST,by hosting graduates students, supplying platforms and participating to joint events.

The TAI laboratory

TAI (Technologies Avancées de lò•—Information - Advanced Information Technology) laboratory represents THALES Communications in Euronetlab, where it shares with its partners common projects on IP-based communications and focuses on:

Wireless communications,
Advanced routing protocols,
Management of QoS, security,
Mobility management and Security management of mobile users and self-organising networks (MANETs). When academic partners rather rely on modelling and simulation tools, TAI provides Euronetlab with a fullyprogrammable Internet IPv6 and IPv4 infrastructure.

The partners in Euronetlab are inter-connected with high-speed IPv6 links through RENATER enabling distributedprojects and platforms.

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A new generation of IP equipement

A history of technological advancement

6WINDò•—s technology is the result of 7 years of R&D initiated at Dassault Electronique and continued at Thales. The company is a spin-off with highly talented and experienced executives and engineers from the world class industrial group Thales.
The company has multiple patents and has created a powerful and innovative technology in the market for access and edge equipment in anticipation of the migration of present IP architectures towards IPv6. Recognised for its technological advancement in IP evolution issues, 6WIND contributes greatly to the building of the new Internet and is seen as a key player in IPv6. Its engineers have been participating in the specification of the new Internet protocols and are actively involved in their implementation on trial and pre-commercial platforms. 6WIND products are fully deployable for new service revenue opportunities at lower cost.
The company has established prestigious early stage references among universities and telcos in the most promising markets worldwide.

Corporate Mission

6WINDò•—s priority is to develop solutions that allow its customers, looking to gain competitive advantages and generate profits, to create added value in their networks while also preparing the migration of their infrastructures to adapt to the new Internet standards.
This added value translates into the deployment of richer IP services bringing solutions to the need for: IP flows with greater security and better classification; an optimal bandwidth management allowing for innovative real-time applications; high speed data rates and improved mobility.

Activities and Markets

6WIND is a French company specializing in access routers (6WINDGate Product Line) and Point of Presence routers (6WINDEdge Product Line) for operators and ISPs. These products meet both IPv4 and IPv6 specifications and offers a simple solution to deploy the version 6 of the IP protocol in existing high speed IPv4 architectures (xDSL, Cable, Leased Lines, Ethernet).
6WINDGate and 6WINDEdge products offer more than just IPv4/IPv6 dual-stack routing. They help 6WINDò•—s customers to deploy and manage high value-added services, bringing quality of service and security (filtering and IPsec VPN) on all types of IP networks.
6WIND equips operators, ISPs, corporations, and research centres worldwide, with a focus on Europe and Asia.

Promoting the worldwide development of IPv6

6WIND plays an active role in the promotion, development and deployment of IPv6 around the world. For instance, 6WIND is the co-founder of the IPv6 Forum (, the founder of the French IPv6 Task Force (, and sits on the steering committee of the 6TNet project for the deployment of an IPv6 Telecom Trial Network in China (
When it comes to stimulating innovation, 6WIND acts as a spearhead. As a matter of fact, the company initiated with other partners the creation of EURONETLAB, a joint research laboratory that brings together teams of experts in next-generation Internet technologies in order to find new network solutions and equipment.

Increasingly contributing to the IETF works

6WIND has participated in the specification of the new IP protocol IPv6 and is actively involved in its evolution. The company is increasingly present in the IETF working groups that are discussing the evolution of the Internet protocol, and is also involved in IETF RFC standardisation.

Being an active partner of national and European IPv6 projects

6WIND participates in various French and European IPv6 focused projects; these projects contribute to experiment and implement in 6WIND products advanced features such as intelligent routing, QoS, Mobile IP, IP Security, service programmability and VPN.
Among others, 6WIND is a member of the following IPv6-related projects:

EURO6IX, the first Pan-European pre-commercial IPv6 Internet Exchanges Network, deployed in cooperation with major European telcos.
6POWER, a research project on the native support and deployment of IPv6, QoS and other advanced services, over power line communication networks.
POLLENS, a project focusing on the development of programmable routers, configurable networks, QoS-enabling solutions and content delivery technologies.
EVERYWARE and INFRADIO, two projects that focus on the impacts and benefits of the new IP technologies, and particularly IPv6, on wireless environments such as WLAN, GPRS and UMTS.

6WIND is building the new Internet

New IP services, easy to differentiate and adapt to customer needs, will undoubtedly create new sources of revenues for service providers. Offering this type of services requires the evolution of existing architectures and service platforms. Indeed, current IP architectures, even if they have proved their outstanding adaptability in the past, will not have the right capacities to face the multiplication of IP terminals, allow end-to-end communications, manage terminal mobility and ensure a security level higher than today's level. Service platforms will also have to reduce installation and operation costs in both operator and enterprise networks.
6WIND is convinced that IPv6 is the catalyst that will enable this transformation of the Internet. The 6WIND team works on new solutions for the new generation Internet!

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LIP6   Thales   UPMC   6WIND