Space Internetworking Services Area

The Space Internetworking Services Area (SIS) supports the work of the CCSDS by providing services and protocols to address networked interactions of many forms: - between spacecraft and earth-based resources, - among spacecraft, - between spacecraft and landed elements, and - within heterogeneous spacecraft. The SIS Area deals with communication services and protocols that are independent of specific link technology (as a lower layer bound) and independent of application-specific semantics (as an upper bound). This covers essentially the network through application layers of the OSI reference model. The SIS Area accommodates all ranges of delay, interactivity, and directionality, although not all protocols are appropriate for all environments.

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