PU definition statement

Code one PU definition for each LINE definition statement. VTAM® uses the PU definition statement to define the link station for the adjacent communication controller.

You can define a channel attachment between a host and an NCP in a channel-attachment major node. This data host attachment eliminates the requirement that the host have ownership (control) of network resources. With this channel attachment defined, VTAM can contact a channel-attached NCP without activating the NCP.

When you define a channel attachment between a host and an NCP, be sure to consider the following items:

Providing a data host to back up a communication management configuration (CMC) host
Coding the PCCU definition statement in a CMC
Coding the HOST definition statement in a CMC

For more information on these considerations, see the z/OS Communications Server: SNA Network Implementation Guide.