DLUR/DLUSDependent Logical Unit Requester/Server. The DLUR function is an {APPN} enhancement for an end node or network node that supports dependent {LU}s. The DLUS function is a product feature of an {interchange node} or a {T5} network node supporting {session services} extensions. {(http://booksrv2.raleigh.ibm.com/cgi-bin/bookmgr/bookmgr.cmd/BOOKS/DLUR7/)}. (1997-05-08)