SNA LU alias facility
Specifying a prefix string on the LUAPFX parameter of the CICS® APPL statement indicates that SNA is to generate LUALIAS names for dynamic cross-network CDRSCs in session with the CICS region defined by the APPL statement.
In this way, CICS can use an LU alias for autoinstalled terminals and workstations and ensure unique names in a CICSplex comprising terminal-owning and application-owning regions. SNA generates the LUALIAS names dynamically.
CICS supports both the predefined and dynamic forms of the SNA alias function only where shown in the following table:
| CICS-to-CICS APPC connections (APPL definitions) | APPC devices (LU definitions) | Terminals | ||||||
|---|---|---|---|---|---|---|---|---|
| Synclevel 1 | Synclevel 2 | Synclevel 1 | Synclevel 2 | |||||
| Predefined alias only | Predefined alias | Dynamic alias | Predefined alias | Dynamic alias | Predefined alias | Dynamic alias | ||
| SNA | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| CICS | Yes | No | Yes | Yes | No | No | Yes | Yes |
- The LU alias is used as the NETNAME for terminals and workstations that log on to a CICS region.
- CICS does not support LU alias for synclevel 2 connections (LUTYPE 6.1 and 6.2), ignores any LU alias for these LU types, and continues to use the network name defined in the SNA APPL statement.