DTN Marshall Enterprise (DTNME)(MFS-33978-2)

DTN Marshall Enterprise is a fully compliant CCSDS Delay/Disruption Tolerant Network (DTN) router that has been used to conductInternational Space Station (ISS) payload operations for many years. Communications in space are characterized by their disrupted, wireless nature. Whether due to occultation, scheduling, cost or solar flares, spacecraft must handle interruptions in connectivity and data losses. Delay/Disruption Tolerant Networking (DTN) using the bundle protocol (BP) can maximize the efficient use of links to and among spacecraft. As part of NASA's efforts to deploy DTN in space, the HOSC developed a general purpose DTN router based on the SourceForge DTN2 version 6 reference code and reinvented a previously developed capability called the External Router. This allows non-network cognizant operators to manage the ground gateway as though it were another piece of the ground system without perturbing its actual specifications. The HOSC has deployed their implementation of the DTN Bundle Protocol (BP) to payloads on the International Space Station (ISS). The current request is to export and make available for technology transfer the latest DTNME implementation that includes version 7. The addition of version 7 moves the DTNME baseline to the latest IETF release allowing developers to test with a single implementation that is able to support multiple bundle protocol implementations simultaneously. This implementation resides on github.com/NASA/DTNME.