ECOC 2011 OFELIA Workshop

OPENFLOW EXTENSIONS TOWARDS MULTI-LAYER AND MULTI-DOMAIN NETWORKS: OFELIA

OFELIA held a workshop on 18th September 2011 in conjunction with the ECOC 2011 conference to give all the excellent proposals, that couldn't be supported by the first open call directly, the opportunity to present their ideas.

We held the workshop on a Sunday morning, and a little more than 30 people participated in a lively discussion. It turned out that there was indeed a common problem for most of the proposed ideas: a Hardware Abstraction Layer (HAL) for optical and more general for any OpenFlow switches appears necessary for the use of anything more specialized than a plain Ethernet switch. As an example, reconfigurable optical add/drop multiplexers (ROADMs) come in different flavors and switching capabilities. Some are freely configurable in the wavelength to be dropped, others not, some are directional, others not, and so on. In addition the nature of the interfaces is to be described, Meral Shirazipour suggested a GMPLS-like encoding of the interface types, arguing for an easier integration of OpenFlow-capable optical switches into existing GMPLS control planes. Other speakers argued for a more generic and less “legacy” description models.

Three talks on OpenFlow applications like greedy routing schemes and federation languages and resources complemented the workshop with topics going beyond the optical <-> OpenFlow integration. We would like to thank all speakers again for their highly interesting presentations and the opinionated discussion.

Presentations/Speakers:

  1. Virtualizing the Transport Network - Why it matters and how OpenFlow can help
    Saurav Das, Stanford University, US
  2. Extending OpenFlow to Optical Wavelength Switching – Challenges, Requirements, and Integration Model
    Achim Autenrieth, ADVA Optical Networks, Germany
  3. OpenFlow-based Hybrid Control Plane within the CTTC ADRENALINE Testbed
    Ricardo Martinez, CTTC - Centre Tecnològic de Telecomunicacions de Catalunya, Spain
  4. Cross-layer Optimisation and Traffic Control for Delivering Super High Definition Video
    Miguel Rio, University College London, UK
  5. An Experiment Description Language for SFA-based Federated Experimental Facilities
    Giovanni Di Stasi, Universita' di Napoli Federico II, Italy
  6. Real Time, Online Interactive Applications (ROIA) on OpenFlow
    Mike Surridge, University of Southampton, UK
  7. Network Protocols Testbed based on the OpenFlow Standard and NetFPGA Cards
    Grzegorz Danilewicz and Wojciech Kabacinski, Poznan University of Technology, Poland
  8. Overhead-free routing with OpenFlow
    Balazs Sonkoly and Andras Gulyas, Budapest University of Technology and Economics (BME), Hungary
  9. Design Considerations for OpenFlow Extensions Towards Multi-Domain, Multi-Layer, and
    Optical Networks

    Meral Shirazipour, Mallik Tatipamula, Ericsson