Aide à la décision sur la Virtualisation et l'Interfonctionnement de Plates-formes de Services

The success of the Internet results from its capacity to connect in a transparent way a large number of users. Its evolution will be also conditioned by the ability to interconnect federation of high speed access networks of different technologies. In particular, wireless technologies will be increasingly present in our daily professional and social activities; in parallel, high speed wired accesses spread everywhere. Population of subscribers will be able to communicate using wired or wireless access technologies via complex interoperable architectures. There is currently no tool able to tackle performances of end-to-end services provided by heterogeneous network infrastructures, from the wired or wireless access points (ADSL, Wifi, GPRS, UMTS) to the service platforms. This constitutes an undeniable barrier to the deployment of these new technologies at a lower cost and with a controlled quality of service.

AVIPS project handles these problems according to three main objectives:

  • the first aims at the design and the development of a software tool for end-to-end simulation of systems constituted of heterogeneous networks and service platforms. The proposed modelling will cover not only the interconnection of heterogeneous networks but also the behaviour of the service platforms.
  • the second aims at the modelling of the traffic resulting from subscribers connecting to these services using heterogeneous network technologies. In particular, a major concern is the creation of traffic matrices corresponding to the traffic generated by different categories of subscribers when connecting to shared services with different wired and wireless media via a common core IP-MPLS network.
  • the third deals with network planning problems, and resource optimisation problems related to the dynamic adaptation of the system in case of equipment breakdowns, congestion or performance degradations. These policies are on several levels since they relate to:
      • the core network (IP and MPLS) and its traffic engineering via LSPs,
      • the dynamic assignment policies performed by the DNSs making it possible to ensure on the one hand the continuity of the service in the event of breakdown of a platform and on the other hand a better quality of service according to the load,
      • the dynamic resource management inside the service platforms (task mapping, load-balancing, service virtualisation engine).

The prototype developed in the project will allow decision support at the R&D level and design of network architectures and their dimensioning at the operational level. While being based on predictive information contributing to the decision, AVIPS will allow:

  • the validation of new architectural concepts (horizontal versus vertical),
  • the deployment of new platforms or the extension of the current ones,
  • the evaluation of the end-to-end performances of heterogeneous systems,
  • an adaptive resource management making it possible to optimise the robustness of the system and to supply an improved end-to-end quality of service for heterogeneous users.

Accordingly, the AVIPS project corresponds completely to the orientation of topic 1 "Mobility and Interoperability" of the call, and partly to the orientation of topic 2 "Very High Speed", since it deals with multiple high speed access networks.
Partner skills.

QoS Design: expert in the design and development of network simulation and planning software, with a consistent software suite called NEST
SFR: strong operational expertise as a Mobile operator, knowledge of operational needs, traffic and equipment characterizations.SFR will be a major partner for the technical validation and industrial valuation.
ENST: expert in the field of the quality of service, the interconnection of heterogeneous architectures and network modelling.
LAAS-CNRS: strong skills in stochastic traffic modelling and optimisation.
IndexMultimedia: operational expertise in the service deployments, the management of interoperable platforms and the analysis of user traffics on a worldwide scale.

Project impact. The Software developed in the AVIPS project will integrate a significant evolution within the domain of planning tools for convergence networks and for the simulation of heterogeneous traffics and service platforms in large scale networks. QoS Design considers a broad marketing of the performance evaluation and optimisation environment which will be developed in the course (and after) of the AVIPS project. The "targeted" customers are network operators, virtual operators, service suppliers, integrators and ISP/ASP. The environment will be capable to bring an effective support for the design of next generation service architectures with guaranteed QoS and optimised costs.