Dependent LU Requester (DLUR)

DLUR allows dependent LUs (LU 0, 1, 2, 3, and dependent LU 6.2) to benefit from an APPN® network. It supports dynamic and multiple paths through the network and eliminates the need for dependent LUs (or their gateway) to be adjacent to the VTAM® host.

A DLUR is an APPN® end node or network node that owns dependent LUs, but requests that a dependent LU server (DLUS) provide the system services control point (SSCP) for those dependent LUs. A DLUS controls conversion from a subarea environment to an APPN® environment, allowing you to maintain central management of remote dependent LUs while benefiting from an APPN® network.

Personal Communications uses the support in VTAM® V4R2 for dependent LUs through APPN® networks and combined subarea and APPN® networks. The dependent LU server function (in VTAM®) provides dependent secondarylogical unit (SLU) support by establishing an LU 6.2 session between a dependent LU requester node (DLUR), and a dependent LU server node (DLUS).

Refer to the information about SNA Client/Server concepts in Emulator User's Reference for more information.