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Contents

 

LU Number	Description
LU 0	Used for Program-to-program communications. Defined by the implementation AKS LU/A, LUA
LU 1	For Program-to-device communications. Can use a single terminal with multiple IBM 3287 printers,
LU 2	For Program-to-device communications. For 3270 data stream to LU terminals
LU 3	For Program-to-device communications. Uses 3270 data stream to communicate with printers.
LU 4	For Program-to-program communications. Hierarchical / peer-to-peer / program-to-device SNA character stream to printer. SNA Server does not support this.
LU 5	N/A
LU 6 / 6.1	For Program-to-program / Peer-to-peer communications (CICS-CICS, IMS-IMS, CICS-IMS). IBM 5250 devices, and SNA Server APPC LUs
LU 6.2	For Program-to-program / Peer-to-peer  APPC communications and CPI-C (Common Programming Interface for Communications). A task-to-task interface using General Data Stream (GDS)
LU 7	For Program-to-device 5250 data streams to Terminals on AS/400, System 36, System 38. Not used on AS/400 systems. Not supported by SNA Server.

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