Demonstration of Multi-Domain OpenFlow Testbed and Virtual Network Instantiation With Arbitrary Topology at FIA Dublin

7 May 2013

GÉANT and OFELIA will demonstrate their joint innovative OpenFlow facility at the Future Internet Assembly (FIA) in Dublin, on 8th to 10th of May 2013. On top of their multi-domain OpenFlow testbed an innovative network virtualization framework will be demonstrated allowing experimenters to instantiate virtual programmable networks with arbitrary topology. The demonstration will be hosted in the GÉANT and OFELIA booths.

The facility demonstrated is represented by the GÉANT OpenFlow facility  and the OFELIA Islands at i2cat Barcelona, ETH Zurich, TU Berlin and CREATE-NET Trento. The network virtualization framework used in the demonstration is VeRTIGO, developed by CREATE-NET. Compared to traditional OpenFlow-based virtualization tools like FlowVisor, VeRTIGO enables researcher to test novel network protocols and innovative SDN mechanisms across several testbeds based on heterogeneous hardware.

The GÉANT OpenFlow facility is a test-bed environment deployed on top of the GEANT production network, collocated with five of the GÉANT PoPs in Vienna, Frankfurt, London, Amsterdam and Zagreb. The orchestration software deployed on top of the GÉANT OpenFlow Facility to implement management plane functionality is the GÉANT OpenFlow Control Framework (GOCF), empowered by the OFELIA Control Framework (OCF). OCF is being developed within the OFELIA FP7 project, and it has been adapted to fulfill the GÉANT OpenFlow Facility requirements.

The OFELIA Control Framework (OCF) is a set of software tools for testbed management. It controls the experimentation life cycle; including reservation, instantiation, configuration, monitoring. It hides the complexities involved in single and federated island setups, still providing enough information so that experimenters can program their environment using heterogeneous, scalable resources. The OCF is available under BSD license and is being actively developed and used as a production control framework by the OFELIA FP7 project testbed.

CREATE-NET  is an international research consortium hosted in Trento (Italy) and partner of OFELIA. Here, their research is focused on network virtualization mechanisms on heterogeneous network infrastructures, with a special focus on network virtualization enablers leveraging OpenFlow and the Software-defined networking concept.

OFELIA coming to FIA in Dublin with workshop and demonstration

25 April 2013

The EU OFELIA project will be present with a workshop and a demonstration at the Future Internet week in Dublin, Ireland.

Pre FIA workshop taking place on Tuesday 7th May:

  • (G)MPLS and OpenFlow: Interworking, Integrating, or Replacing? (7 May, morning)
    The workshop addresses network researchers and engineers that have a certain background on MPLS and would like to find out the relation of GMPLS and the latest buzzword SDN. Separation of data and control planes is common to both approaches, but the APIs are completely different (and orthogonal). The workshop addresses the following questions: Will SDN replace GMPLS? How much use will SDN make of the software stacks that have been developed for GMPLS? The FP7 project OFELIA has a strong participation of research groups in the optical networks area. We invite participants from other research groups, and will provide information on the current developments.

Demonstration as part of the Hands-on FIRE! demonstrations on 8 - 10 May:

  • OpenFlow
    So far we plan to show two demos: One will show optical equipment integration into an OpenFlow control plane (this is related to the workshop described above). The second demo is prepared jointly with an OpenFlow research activity at GÉANT. We will demonstrate live the creation of a virtual network topology over a pan-European research testbed. This demo will show how network and computing resources can be orchestrated using the OFELIA control framework.


GÉANT Demonstrating at ONS OpenFlow Facility based on OFELIA Control Framework

15 April 2013

GÉANT, the pan-European research and education network that interconnects Europe’s National Research and Education Networks,  will demonstrate the use of its OpenFlow Facility at the Open Networking Summit (16 – 17 April 2013, Hall A of the Santa Clara Convention Center).

The orchestration software deployed on top of the GÉANT OpenFlow Facility to implement management plane functionality is the OFELIA Control Framework (OCF). OCF is being developed within the OFELIA FP7 project, and it has been adapted to fulfill the GÉANT OpenFlow Facility requirements. Development of the OFELIA Control Framework is led by i2CAT foundation.

During the demonstration a Walkthrough tutorial of the OCF GÉANT testbed will be shown, explaining the steps a user should follow to set-up and OpenFlow experiment.

The pictures below highlight the different layers of the GÉANT facility and an example experiment.

The network resources include software-based OpenFlow switches based on Open vSwitch (OvS) and network links that interconnect the OpenFlow software switches.

Two (2) general-purpose servers are installed on each of the five (5) GÉANT Points of Presence (PoPs) hosting the GÉANT OpenFlow Facility PoPs . Each server at a PoP is either:

  • The host of a software-based OpenFlow switch (Open vSwitch), or
  • Utilises a Xen hypervisor for the instantiation of multiple VMs allocable to user slices.

The data plane topology of the GÉANT OpenFlow Facility is a full mesh graph. This is achieved by a back-to-back connection of each OpenFlow switch to the local GÉANT MX router through four 1 Gigabit Ethernet ports. GÉANT OpenFlow Facility PoPs are interconnected using pseudo wires, GÉANT L2MPLS VPNs.


Using SDN to outsource and optimize Internet Routing

12 April 2013

Researchers from ETH Zurich will present a poster on SDN and the Outsourcing of Routing during the Open Networking Summit taking place on 16-17 April 2013.

They will present the unconventional idea of outsourcing the routing control logic of an ISP to an external trusted party. In this context, Software Defined Networking (SDN) is the key to a successful outsourcing model.

The researchers will outline the key idea of outsourcing routing and the on-going research at ETH on the design and implementation of a multi-domain routing OS. [extended abstract]

This work is partially funded by the EU FP7 project OFELIA.



At EWSDN - check the myth of SDN and substantiate some of its assumptions

19 October 2012

SDN is surely the latest hype in the networking community, and at EWSDN we would like to check the myth and substantiate some of its assumptions.

High flow establishment rates, carrier features and programmability of new matches and actions are still open research topics on the way to a truly programmable network. We are confident that EWSDN will allow fruitful interaction among participants – both from academia and industry.

The European Workshop on Software Defined Networks is taking place October 25th - 26th, 2012 in Darmstadt, Germany. It has an exciting program, featuring 12 invited speakers from industry, 5 technical sessions and more. Click here to see the complete program.



European workshop on Software Defined Networks - Call for Papers

16 May 2012

The European workshop on Software Defined Networks will take place October 25th - 26th, 2012 in Darmstadt, Germany.
The workshop home page with the Call for Papers and detailed information is at






OFELIA with Three Demonstrations at FIRE at Future Internet "Hands-on FIRE!" on Thursday May 10, 2012

7 May 2012

The EU OFELIA project will participate with three demonstrations at the FIRE at Future Internet "Hands-on FIRE!" session on Thursday May 10, 2012:

  • Using the OFELIA testbed to support Information Centric Networking

This demo is about using the OFELIA testbed to support Information Centric Networking (ICN). Despite this demo has been developed by a partner of the OFELIA project, the ICN functionalities have been implemented using the OFELIA testbed as a "regular" external user. Therefore the demo will first show how it is possible to setup a distributed experiment based on Software Defined Networking / OpenFlow on the OFELIA testbed. Using the OFELIA control framework a "slice" for the ICN experiment is requested and the hardware and software configuration of the experiment is properly configured. Coming to the specific topic of the experiment, the demo willl show how it is possile to exploit the OpenFlow architecture to realize a distributed in-network caching infrastructure supporting ICN.

  • Instantiating generalized virtual network topologies across OFELIA islands

This demo presents VeRTIGO, an advanced network virtualization framework for OpenFlow / Software Defined Networking networks developed by CREATE-NET within OFELIA project. VeRTIGO enables researchers to instantiate generalized virtual network topologies decoupled from the underlying physical topology, with the aim to let them test novel network protocols and innovative operational mechanisms in a controlled testing environment. While currently under development, VeRTIGO's main features will be shown in two experimental scenarios: the first will demonstrate how OFELIA facility can be leveraged to test network virtualization mechanisms and capabilities. The second will show how VeRTIGO can effectively replace the current network virtualization framework (FlowVisor) by instantiating a virtual topology across two different islands of the facility

  • Optical network control through OpenFlow

One of the unique features of the OFELIA project is to support optical networks using extended OpenFlow protocol and its control framework. This demo will show how experimenters can use OpenFlow enabled optical switches (ROADMs) provided by ADVA Optical Networking in the OFELIA facility. The idea is to experiment lightpath establishment in the optical networking domain using extended OpenFlow controllers and OpenFlow agents using the OFELIA testbed. OpenFlow enabled ROADMs (ADVA FSP 3000) infrastructure at University of Essex, will make use of the OFELIA testbed to run experiments in the optical domain. The demo will showcase how extended controllers interact with optical switches to discover optical network topology using OpenFlow. We will also demonstrate a sample application which users can run on top of the extended OpenFlow controller to setup and tear down a lightpath between the discovered network elements.


An OFELIA demo during the launch of the Italian EIT ICT Labs node

2 May 2012

During the recent official launch of the Italian EIT ICT Labs node in Trento on April 18th, CREATE-NET presented a demo out of its activities within the OFELIA project. VeRTIGO (Virtual TopologIes Generalization in OpenFlow networks) enables researchers working on Future Internet networking technologies to instantiate virtual programmable networks with arbitrary topology, with the aim to let them test novel network protocols and innovative operational mechanisms in a controlled testing environment. The demo was performed on top of the OpenFlow-based island CREATE-NET is running as part of the paneuropean OFELIA FIRE experimental facility.

Abstract of the VeRTIGO demo:



OFELIA Testbed and Experiment Demonstrated at GEC13

20 March 2012

The OFELIA project was represented at the recent GEC13 with the following demonstration:

  • Parallel service dependent load-balancing
    Parallel service dependent load-balancing: We provided a technical demonstration for the idea of a typical data-center required load-balancing solution with OpenFlow. The demo showed parallel load-balancing on the OFELIA TUB-Island using tools like FlowVisor and NOX including the developed load-balancing plug-ins. We showed how to create a virtual topology and measure the real hardware performance of the described load-balancing scenario.

It was a very successful meeting with excellent exchange of information about the architecture, experiments and network federation.

GEC13, the13th GENI Engineering Conference took place March 13-15, 2012 in Los Angeles, USA. GENI Engineering Conferences are regular open working meeting where researchers, developers, industrial & international partners and the GENI Project Office meet. GENI, the Global Environment for Network Innovations, is a virtual laboratory for exploring future internets at scale, creates major opportunities to understand, innovate and transform global networks and their interactions with society.

Below is a snapshot from the event:


OFELIA Second OpenCall Web Conference

19 March 2012

OFELIA will be giving a short presentation on the status of OFELIA and the modalities of the second Open Call. This will be followed by time for questions and answers.

This event is scheduled for 30 March 2012; 14:00 CET.

We use GoToMeeting web conferencing tool:

Further details can be found on the OpenCall web page at




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