gtps2m2mACF/SNA Data Communications Reference

Predefining TPF LUs to the APPN Network

Predefining TPF LUs to an APPN network is similar in concept to predefining TPF LUs to a PU 5 network. In a PU 5 network, each TPF LU is defined to the VTAM system in a CDRM deck using CDRSC statements. The CDRM under which the CDRSC is defined, referred to as the owning CDRM, indicates where the LU resides. In an APPN network, the owner of an LU is a CP rather than a CDRM.

In the definition deck of the node that is to be the network node server (NNS) for the TPF system, define each TPF LU as owned by the CP name of the TPF system.

If you predefine the TPF LUs to the APPN network, there is no need for the TPF system to register its LUs at network start up time; therefore, you should code the UARG user exit to not register any of the TPF LUs. See TPF System Installation Support Reference for more information about the UARG user exit.