Tandem Logon Manager for IBM Systems (ILOGMGR) Manual
extended logon facility (XLF)
Glossary-2 127335—Tandem Logon Manager for IBM Systems (ILOGMGR) Manual
Glossary
extended logon facility (XLF). A configuration of SNAX/APN that allows communication 
between 3270 devices in an SNA subarea network and Tandem 3270 applications. This 
configuration requires the Tandem Logon Manager for IBM Systems and SNAX 
Creator-2 as corequisite software.
GTF trace. IBM’s Generalized Trace Facility trace utility.
host. In an SNA network, the processing unit that contains a subsystem services control point 
(SSCP).
ILOGMGR. See Tandem Logon Manager for IBM Systems.
JCL. See job control language.
job control language (JCL). A control language language used to identify a job to an 
operating system and to describe the job’s requirements.
LERAD exit routine. A VTAM inline exit routine that is automatically entered when logic 
errors are detected by the host processor.
link-editing. The process of executing the MVS/ESA linkage editor.
linkage editor. An MVS/ESA linkage editor and loader, which is an IBM utility program that 
prepares the output of a language translator for execution.
Logon Manager. See Tandem Logon Manager for IBM Systems and SNAX/APN logon 
manager.
LU-LU session. In SNA, a session between two logical units in an SNA network. It provides 
communication between two end users or between an end user and an LU services 
component.
Multiple Virtual Storage (MVS). An IBM operating system.
MVS. See Multiple Virtual Storage.
NCP. See Network Control Program.
Network Control Program (NCP). An IBM licensed program that provides communication 
controller support for single-domain, multiple-domain, and interconnected network 
capability.
OLTP. See online transaction processing.
online transaction processing (OLTP). A method of processing transactions in which 
entered transactions are immediately applied to the database. The information within the 
database is readily available to all users through online screens and printed reports. The 
transactions are processed while the requester waits, as opposed to queued or batched 
transactions, which are processed at a later time.










