Selected Papers - ISBN 978-90-77559-00-0

TNC2012 - Networking to Services


Networking to Services

The 28th TERENA Networking Conference was hosted by the Icelandic National Research and Education Network (RHnet) and the University of Iceland in the picturesque city of Reykjavik from 21-24 May 2012. The conference provided an opportunity for researchers, operators and suppliers of Research and Education Networks in Europe and beyond to meet, present and discuss their latest results and requirements in an ideal environment for promoting collaboration.

This year's conference theme was "Networking to Services". Networking in research and education today means much more than simply moving bits and bytes from place-to-place. The services deployed on top of the network are now more crucial than ever before, and social contact enables more effective international collaboration for both service providers and users. The conference included presentations and panel discussions on the whole range of Networking to Services and was organised with a plenary session each day and a number of parallel sessions in the following general tracks: Bits & Wires, Supporting Collaboration, Infrastructure & Services, Social & Secure and Using the Stuff.

Conference summary

Six plenary speakers addressed many different and thought-provoking topics related to the conference theme.
In Monday's opening plenary, Hilmar Petursson, the CEO of CCP Games in Iceland, opened the conference by sharing his experiences from managing the massive 400,000 person multiplayer game EVE-Online. A very entertaining talk, which included several high-tech demonstrations, presented many technical concerns, and gave an insight into the interactions with the large user communities and hard-learned lessons.

Two important aspects related to the networking world were addressed by Geoff Huston and Nicole Harris in Tuesday's plenary. Geoff, Chief Scientist at APNIC, started the second morning by discussing the status of the global transition to IPv6 networking. Following the exhaustion of IPv4 addresses in the Asia Pacific Region last year he examined the choices being made by service providers in response to this event and ultimately the affect that this will have on Europe and the rest of the world. He had many concerns about the reluctance of ISPs to solve the "last mile" problem in moving to IPv6 and the possible lack of global reachability on the Internet that could follow, but encouraged us all to be bold and take this important step forward in our communities. Changing topic, Nicole Harris of JISC Advance UK then gave a very entertaining talk about identity management on the Internet, the changes coming from the ever-increasing use of social networking and the resulting tensions between user experience, privacy and security. She presented many concerns of great interest to the TERENA community, such as the question as to whether informed consent by end-users is sufficient (it is not) and some of the amusing consequences of the new EU e-Privacy Directive (cookies).

Wednesday's plenary session covered two separate topics. Firstly, Jan-Martin Lowendahl of GARTNER spoke about the NRENs' possible role in building the global exo-structure in general and as a potential trusted cloud broker in particular. He presented surveys showing that two-thirds of Higher Education Institutes expect to have replaced more than half of their IT infrastructure by clouds within three years, and went on to discuss how best to achieve this via catalogues of services and the use of standards. The second presentation of the day was given by Jacob Appelbaum of the Tor Project, who described the technology they have developed and deployed for online anonymity on the Internet and went on to discuss some of the very important related political and technical issues. There was much debate and discussion after this talk, both in the lecture theatre and in the refreshment areas later.

Leslie Daigle, the Chief Internet Technology Officer for the Internet Society, presented her views on the evolution, past and future, of the Internet in the closing plenary. She talked about ISOC's eight "invariants" making the Internet such an important platform for innovation, such as global reach and permission-less innovation. She also spoke of ISOCs preference to have wide discussion on policy choices about new services rather than concentrating on the technical means to implement anything new. In the end the success or otherwise of a new Internet service depends on the millions of users who decide to use it (or not) rather than some central master-plan and control; a very good note on which to end the conference.

Selected Papers Summary

Twelve papers presented in the various parallel sessions have been selected for this publication. Like the conference, they cover a wide range of topics.

Five papers were presented in the topic called "Bits & Wires" in sessions on "NSI: Global Dynamic Circuits", "Testbeds", "IPv6", "Software Defined Networking" and "Network Control & Management".

The first of these, "Network Service Interface - gateway for future network services" by Radek Krzywania, Joan Antoni García -Espín, Chin Guok, Jeroen van der Ham, Tomohiro Kudoh, John MacAuley, Joe Mambretti, Inder Monga, Guy Roberts, Jerry Sobieski and Alexander Willner, from a similarly large number of institutes across the world, addressed the important topic of the Network Service Interface (NSI). The paper describes a new concept of multi-domain resources management, where services can go beyond single domain boundaries facing current research community requirements. The proposed NSI framework is not a tool or application, but rather a language that can be learned by provisioning tools to communicate with each other. This feature in correlation with open standard implies unlimited scalability.

In "Logical Infrastructure Composition Layer, the GEYSERS Holistic Approach for Infrastructure Virtualisation", by Joan A. García -Espín, Jordi Ferrer Riera, Sergi Figuerola, Mattijs Ghijsen, Yuri Demchemko, Jens Buysse, Marc De Leenheer, Chris Develder, Fabienne Anhalt and Sébastien Soudan, from Spain, The Netherlands, Belgium and France, the authors present the Logical Infrastructure Composition Layer as a solution produced in the context of the European project GEYSERS for ICT infrastructure virtualisation in the Future Internet. The technological solution and simulations on the potential benefits show a novel ICT infrastructure control and management solution that is able to accommodate the optimisation requirements for the Future Internet.

"6MON: Rogue IPV6 router advertisement detection and mitigation and IPV6 address utilization network monitoring tool", by Abraham Gebrehiwot, Marco Sommani, Andrea De Vita and Alessandro Mancini, all from CNR, Pisa, Italy, addresses some of the important network management issues in a world where IPv6 is growing in importance. 6MoN allows a network administrator to discover, monitor and mitigate rogue router advertisements automatically.

Eduardo Jacob and Jon Matias, from the University of the Basque Country, presented a paper on "Deploying OpenFlow in production at the University of the Basque Country: Identity based network infrastructure configuration". It introduces the OpenFlow Enabled Facility deployed at their University. Specifically, how the IEEE 802.1X standard is used to authenticate and authorise the access to available services and resources and corresponding OpenFlow switches configuration is explained.

The final paper in "Bits & Wires" is "AutoKNF - end customer AutoBAHN deployment", by Bruno Hoeft (Germany), Tangui Coulouarn (Denmark) and Kostas Stamos (Greece). This presents the project AutoKNF implementing a Bandwidth on Demand (BoD) service based on AutoBAHN. The testbed over the dynamical AutoBAHN data plane of DANTE/GÉANT between Karlsruhe and Copenhagen is used to evaluate several issues. Interoperability with the OSCARS BoD tool used in NORDUnet and elsewhere is also being investigated.

Two papers in the topic "Infrastructure & Services" were presented in sessions called "Delivering the Content" and "Networking Security". The first of these is a paper entitled "Overlay Network Based Optimization of Data Flows in Large Scale Client-Server-based Game Architectures for Deployment on Cloud Platforms" by Peter Quax, Wouter Vanmontfort, Robin Marx, Maarten Wijnants and Wim Lamotte, all from the Expertise Centre for Digital Media in Diepenbeek, Belgium. This combines a specific architectural design for Networked Virtual Environments (NVEs) with a generic optimisation infrastructure for content streaming. They show that the optimisations are very useful in mobile setups, allowing dynamic deployment, including on cloud platforms.

The second paper, by Leonidas Poulopoulos, Michalis Mamalis and Andreas Polyrakis of GRNET, is called: "FireCircle: GRNET's approach to advanced network security services' management via bgp flow-spec and NETCONF". This presents a new security provisioning service based on bgp flow-spec, designed and implemented in-house by the GRNET Network Operations Centre using open-source tools. This allows administrators of a downstream network to inject firewall-like rules at the upstream level to mitigate attacks there.

Four papers were presented in the topic "Social & Secure", more specifically in the sessions called "Security & Tools" and "Security & Governance".

"TAMIAS: a distributed storage built on privacy and identity" by Jean Lorchat, Cristel Pelsser, Randy Bush, Keiichi Shima and Helene Schlesinger of the Internet Initiative Japan and Leif Johansson (SUNET), presents a new distributed storage system called Tamias. This has identity and privacy at its core and includes fine-grained sharing, delegation and revocation. This is of interest to anyone concerned about potential lack of privacy when backing up data to the Cloud.

Jakub Safarik, Miroslav Voznak and Filip Rezac, all from CESNET, presented a paper on "Security Evaluation of Multimedia Systems". This addresses the important concern about the lack of security in many Voice over IP (VoIP) solutions. The authors consider automatic testing of VoIP robustness and propose a solution for an automatic defense against DoS attacks.

In a paper entitled "Addressing the complex security aspects of network services in GÉANT multi-domain environments", Gerard Frankowski and Tomasz Nowocien of PSNC Poznan and Wayne Routly of DANTE present their work on the security-in-depth approach to securing multi-domain services in GÉANT. This includes many aspects such as the training of application developers, risk assessments, penetration testing, security fire-drills and work on incident handling. The work described is of benefit for other R&D projects and anyone developing software in a distributed way.

The final paper in this topic is another one related to security in GÉANT. "Bringing governance into distributed R&D software development - GÉANT case study" by Branko Marović, Pawl Kedziora, Marek Lewandowski and Cezary Mazurek of PSNC Poznan, is a paper presenting the many challenges in the governance of software development in GÉANT. The authors analyse the importance and impact of the approach described which goes beyond the usual methodologies and frameworks.

The final selected paper was presented in the topic "Using the Stuff" in a session called "Networking for Apps". "The MyESnet Portal: Making the Network Visible" by Jon M. Dugan, Gopal Vaswani, Gregory Bell and Inder Monga, all from ESnet, LBNL, USA, presents their work on the development of a portal allowing end-users to monitor, troubleshoot and understand the real time operations of the network and associated services. The portal combines data from a wide range of sources. Development of effective user interfaces has been taken very seriously with users being both interviewed and observed. The pros and cons of the various open source tools used are also discussed.

Archives of live–streamed speeches, speakers’ slides and other TNC2012 information are all available via the conference website: We look forward to welcoming you, either in the real or virtual worlds, to TNC2013, which will be held in Maastricht, Netherlands, from 3 to 6 June 2013, and at

David Kelsey
TNC2012 Programme Committee Chair


(alphabetically by presenting author)

TNC2012 Programme Committee
David Kelsey STFC Rutherford Appleton Laboratory United Kingdom
Bartosz Belter PSNC Poland
John Chevers DANTE  
Lionel Ferette    
Ana Preston Hunsinger Internet2 USA
Bartlomiej Idzikowski PSNC Poland
Leif Johansson SUNET Sweden
Zenon Mousmoulas GRNET Greece
Jiri Navratil CESNET Czech Republic
Brook Schofield TERENA  
Niels van Dijk SURFnet Netherlands
Ymir Vigfusson University of Reykjavik Iceland
Stefan Winter RESTENA Luxembourg
TERENA support  
Miroslav Milinović TERENA VP Conferences, Srce Croatia
Karel Vietsch TERENA
Bert van Pinxteren TERENA
Gyöngyi Horváth TERENA