About software-defined networkingSoftware-defined networking (SDN) enables networks to be managed at software level. SDN allows you to take a more dynamic approach to infrastructure and more flexibility in responding to changes within or outside the institution. SURF is examining the potential applications for the SURFnet network.
Management function decoupled from data forwarding
With software-defined networking (SDN), management and control functions of network elements such as routers and switches are decoupled from the data forwarding function. The management function and other complex functions can be distributed across separate servers, thereby making the physical network elements (hardware) simpler and shifting the focus onto transmitting and receiving data only.
Cooperation with institutions and international partners
SURF is working together with international partners such as the American network research consortium Internet2 on the development and testing of this new technology. SURF wishes to involve affiliated institutions in its activities and share its knowledge about the technology, via workshops or pilot projects involving user groups for which virtual network slices are made available.
- Blog: CoCo: an exploration of software-defined networking (SDN). From October 2013 to March 2015, SURF worked together with the Dutch Organisation for Applied Scentific Research (TNO) to build an SDN prototype for setting up private networks on demand. This project offered great insight into the practical aspects of software-defined networking and indicated the potential goals to be pursued and the challenges to be overcome in the future.
- Blog: Deltion College opts for software-defined networking. In the summer of 2014, Deltion College in Zwolle installed a network based on software-defined networking. Deltion is using the OpenFlow protocol for this solution.
- Poster Terena Networking Conference: The Design and Implementation of OpenFlow/SDN testbed (May 2014)
- Best practice: Multipathing with MPTCP and OpenFlow (June 2013)
- White paper about OpenFlow by Ronald van der Pol (2011)
Architecture SURFnet testbedThe SURFnet testbed consists of 5 Points of Presence (PoPs). The locations have 40G/10G OpenFlow switches and a bare metal server or OpenStack mini-cloud. Between each pair of OpenFlow switches there are three path-redundant 10G connections.Read more
About software-defined networkingSoftware-defined networking (SDN) enables networks to be managed at software level. SDN allows you to take a more dynamic approach to infrastructure and more flexibility in responding to changes within or outside the institution. SURF is examining the potential applications for the SURFnet network.Read more