scope:

This specification defines extensions to the SLE API in terms of:

a) the FSP-specific functionality provided by API components;

b) the FSP-specific interfaces provided by API components; and

c) the externally visible behavior associated with the FSP interfaces exported by the components.

It does not specify:

a) individual implementations or products;

b) the internal design of the components; and

c) the technology used for communications.

This Recommended Practice defines only interfaces and behavior that must be provided by implementations supporting the Forward Space Packet service in addition to the specification in reference [5].

PURPOSE

The Recommended Practice Space Link Extension-Application Program Interface for Transfer Services-Core Specification (reference [5]) specifies a C++ API for CCSDS Space Link Extension Transfer Services. The API is intended for use by application programs implementing SLE transfer services.

Reference [5] defines the architecture of the API and the functionality that is independent of specific SLE service types.

The purpose of this document is to specify extensions to the API needed for support of the Forward Space Packet Service defined in reference [3].