Using network virtualization and openflow to build large scale DTN evaluation testbed

Currently, Delay Tolerant Networking (DTN) research community urgently needs a credible and flexible platform to setup large scale DTN networks to accurately evaluate the performance of algorithms and protocols. In this work, we present such an emulation testbed. By using network virtualization and OpenFlow technologies to generate virtual DTN nodes and to simulate the opportunistic links controlled by mobility scenarios, our designed testbed is a realistic DTN protocol evaluation environment composing realistic networks and applications, which provide high credibility, flexible controlling, and supporting for large scale experiments.