VTAM® displays this message as part of a message group in response to a DISPLAY ID, SCOPE=ALL command for a local SNA major node which contains at least one PU that supports APPN host-to-host connections.

• puname is the name of a PU that supports an APPN host-to-host connection.
• status is the status of the PU. See the z/OS Communications Server: New Function Summary for status information.
• trl_element is the name of an element in the active transport resource list (TRL). It identifies which element defining a multipath channel (MPC) group will be used as the supporting data link control (DLC) for this APPN host-to-host connection.