This document of the Natural CICS Interface documentation describes the CICS 3270 Bridge support.
The following topics are covered:
By default, the Natural CICS Interface supports the CICS 3270 Bridge by being able to deal with "bridged devices", that is, terminals which are emulated via a CICS 3270 bridge exit.
If you want full CICS 3270 Bridge support, you have to install the NCI source module
NCIXFATU. Refer to the corresponding installation step in Installing Natural CICS Interface
on z/OS or Installing Natural CICS Interface
on z/VSE in the Natural Installation
documentation.
The NCIXFATU module actually is a CICS XFAINTU Global User Exit
(GLUE). Its purpose is to release Natural resources in case the bridge facility's
keep-time has expired and an associated Natural session has not been terminated yet.
The NCIXFATU module provides the same functionality for Natural as a Node
Error Program (NEP) provides for "real" terminals.
When you are using the CICS 3270 Bridge, you are recommended to start a Natural session
with profile parameter DSC=OFF (data-stream compression for
3270-type terminals disabled) to force Natural always to send full screens rather than the
delta to the previous screen.