This part of ISO/IEC ISP 10607 (AFT11) covers transfer of files between the filestores of two end systems, using the OSI connection-mode transport service to provide the interconnection. One end system acts in the initiator role and requests access to the file, the other end system acts in the responder role and provides access to the file in the virtual filestore.
These role combinations and the interoperability are shown in table 1.
Transfer of files is supported for files with an unstructured constraint set and containing binary or character data.
This part of ISO/IEC ISP 10607 specifies implementations that support file transfer, i.e. the ability to
(a) either read a complete file, or
(b) write (replace and/or extend) to a file, or
and optionally to
(a) create and delete a file, and
(b) read the attributes of a file.
This part of ISO/IEC ISP 10607 specifies how the OSI FTAM application standard shall be used to provide the functions defined above. It does not specify total system capability. In particular, a system may operate this profile and at the same time engage in other communications. The requirements placed on an implementation in this part of ISO/IEC ISP 10607 are solely those necessary for operation of the protocol specified.
This part of ISO/IEC ISP 10607 describes the actions and attributes of the virtual filestore, and the service provided by the file service provider to file service users, together with the necessary communications between the initiator and the responder.
1.2 Position within the taxonomy
This part of ISO/IEC ISP 10607 is identified in ISO/IEC TR 10000 -2 as AFT11, Simple File Transfer Service (unstructured)
It may be combined with any T-Profiles (see ISO/IEC TR 10000) specifying the OSI connection-mode transport service.
The model used is one of two end systems establishing an association and transferring files into and out of the responder's virtual filestore as shown in figure 1.
Specifications of this part of ISO/IEC ISP 10607 apply on the double lines of figure 1. The mapping between the virtual filestore and the real filestore together with the local data management system is not defined in this part of ISO/IEC ISP 10607.
This part of ISO/IEC ISP 10607 defines the selection of specific virtual filestore options, file service options and file protocol options. The required functions from the supporting protocol stack of ACSE, presentation and session are specified in ISO/IEC ISP 10607-1 (see also table 2).
The document types, constraint sets and syntaxes which are referenced in this part of ISO/IEC ISP 10607 are defined in ISO 8571-2 and in ISO/IEC ISP 10607-2.
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Information Technology - International Standardized Profiles AFTnn - File Transfer, Access and Management - Part 3: AFT11 - Simple File Transfer Service (Unstructured) (Adopted ISO/IEC 10607-3:1995)