gtpm1m2pTPF V4R1 Migration Guide: 3.1 to 4.1

TPF Advanced Program-to-Program Communications (TPF/APPC)

TPF Advanced Program-to-Program Communications (TPF/APPC) is an interface that allows TPF transaction programs to communicate with remote SNA nodes that have implemented the APPC interface using LU 6.2 protocols. In the TPF 3.1 system, the function provided by the TPF/APPC interface was a subset of the IBM APPC architecture in that it did not provide all the base functions defined by the LU 6.2 architecture.

In the TPF 4.1 system, TPF/APPC support includes the following base functions:

TPF/APPC also supports some of the optional functions defined by the LU 6.2 architecture, including:

In addition, TPF/APPC support provides:

ROUTC extensions are no longer supported in the TPF 4.1 system. TPF/APPC must be used for LU 6.2 communications.

See the TPF ACF/SNA Data Communications Reference for information about how to use TPF/APPC support in the TPF 4.1 system.