DTNperf_3 at work

none3noDelay-/Disruption-Tolerant Networking (DTN) aims at providing interoperable communications in "challenged networks", where long delays, disruption, link intermittency and other challenges prevent, or make difficult, the use of the ordinary Internet architecture. Given their heterogeneity, to assess DTN performance in challenged networks is challenging in and of itself. For this reason, it is essential to develop suitable evaluation tools, with very flexible use. In this demo we present the third major release of DTNperf, a client-server evaluation tool designed to assess goodput and to provide status report logs in DTN Bundle Protocol (BP) architectures. In this third version DTNperf has been greatly enhanced in many respects, including full support of both DTN2 and ION (the BP reference implementation and that developed by NASA JPL, respectively). The demo wants to present both new and enhanced features in a variety of application examples, derived in part from the authors' experience on satellite and space communications. The final aim is to promote its use within the DTN community and receive suggestions from researchers. DTNperf 3 is free software and thanks to its double support is to be included not only in DTN2, as were previous versions, but also in ION.mixedCarlo Caini;Anna d'Amico;Michele RodolfiCarlo Caini;Anna d'Amico;Michele Rodolf