OpenFlow switches

OpenFlow is an emerging new technology, the most widely used Software Defined Networking (SDN) enabler. OpenFlow's Whitepaper is giving more information about the protocol, the system architecture and the uses cases. NITOS OpenFlow testbed currently features two OpenFlow ethernet switches - Pronto 3290. The two switches are interconnected through a single link, whereas each of the testbed physical machines (a.k.a. nodes) is connected to one of the two switches. A suitable convention has been adopted, connecting half of the nodes to the first switch and the other half to the second one.