VTAM® issues this message as part of a group of messages in response to a DISPLAY ID command entered for a PU that supports dynamic LU definitions.

lugroup is the model LU group used to define dynamic LUs for this PU. The value of lugroup corresponds to the LUGROUP keyword on the PU definition statement.

pattern is the character pattern passed to the selection of definitions for dependent LUs (SDDLU) exit. This pattern can be used to generate names for dynamically defined LUs. The value of pattern corresponds to the LUSEED keyword on the PU definition statement. See the z/OS Communications Server: SNA Resource Definition Reference for more information.