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The Optical IP Network Architectures group is part of the Emerging Networks (EN) strand of CTVR, the Centre for Telecommunications Value-Chain Research.

The main research area of the group is that of highly dynamic optical provisioning in transparent optical networks. Our study focuses on the network layer, studying routed/switched architectures for the future high-speed Internet.

The scope of our group is to carry out research activity in the following topics:

  • Optical IP convergence in new-generation optical networks
  • Ad-hoc Optical networking in highly dynamic transparent networks
  • Business models for new-generation optical networks
  • Clean-slate routed & switched network architectures


  • To achieve our goals we work hand in hand with the other CTVR strands (in particular the Network Optimization and the Photonic Systems groups) and with our industrial partners.
    Bell Labs Ireland is the founding industrial partner to CTVR.
    NEC Communication Systems (NCOS) is also involved in the development of new generation Internet optical architectures.

    The distinctive characteristic of our approach is that we employ a distributed decision mechanism to provision the lightpaths. The idea started with our Optical IP Switching project, where the optical nodes analyze the local IP traffic to create transparent optical cut-through path that bypass the IP layer, when IP flows of suitable size are detected and aggregated.
    We have been involved in the development of distributed protocols and algorithms for dynamic flow selection and aggregation and signaling mechanisms for path provisioning.