Position of the openFT product family in the OSI Reference Model

The openFT products belong to the application layers (Layers 5 - 7) of the OSI Reference Model. They support the standardized openFT protocol and the FTAM protocol ISO8571 standardized by ISO and the File Transfer Protocol (FTP) defined by RFC959.

The openFT products can use a variety of different transport systems with different transport protocols.

The following diagram shows the possible combinations of application and transport protocols for file transfer:

Protocols supported by openFT in the environment of the OSI Reference Model

openFT for z/OS supports only the openFT protocol and the FTP protocol for transferring files.

For an overview of the transport systems and protocols that permit the operation of openFT products, please refer to the relevant product data sheets.