STP-ISS Transport Protocol for SpaceWire On-Board Networks: Development and Evolution

STP-ISS Transport Protocol for SpaceWire On-Board Networks: Development and Evolution

Valentin Olenev (St. Petersburg State University of Aerospace Instrumentation, St. Petersburg, Russia), Irina Lavrovskaya (St. Petersburg State University of Aerospace Instrumentation, St. Petersburg, Russia), Yuriy Sheynin (St. Petersburg State University of Aerospace Instrumentation, St. Petersburg, Russia), Ilya Korobkov (St. Petersburg State University of Aerospace Instrumentation, St. Petersburg, Russia), Elena Suvorova (St. Petersburg State University of Aerospace Instrumentation, St. Petersburg, Russia), Elena Podgornova (St. Petersburg State University of Aerospace Instrumentation, St. Petersburg, Russia), Dmitry Dymov (JSC “Academician M.F. Reshetnev” Information Satellite Systems”, Zheleznogorsk, Russia) and Sergey Kochura (JSC “Academician M.F. Reshetnev” Information Satellite Systems”, Zheleznogorsk, Russia)
DOI: 10.4018/IJERTCS.2014100103
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Abstract

The paper describes the development of a new transport protocol for the SpaceWire onboard networks. It starts from the overview and analysis of existing SpaceWire-oriented transport protocols. Then the paper considers the general industrial requirements for the Transport protocol, which should operate over the SpaceWire network technology. The main two chapters of the paper present the first and the second revisions of the new STP-ISS transport protocol, which has been developed in accordance with the results of the overview and technical requirements. In addition, the authors describe STP-ISS modeling process, which was very efficient for the STP ISS protocol development, testing, analysis and improvement.
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Space Oriented Transport Protocols Review

The space industry demands a Transport protocol running over SpaceWire which will provide reliability, real-time guaranteed services and determinism. The basic SpaceWire protocol standard covers three bottom layers of the OSI model and does not provide transport services (ESA, 2008). Nowadays there is a number of transport protocols intended to operate over SpaceWire, some of them are standardised. They are: RMAP, CCSDS PTP, STUP, JRDDP, STP and SpaceWire-D, which uses RMAP (see Figure 1). Each of them is intended to solve its particular tasks.

Figure 1.

Transport protocols over SpaceWire

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