When you define your CICS® system to ACF/VTAM, include the following operands in the VTAM® APPL statement:
PASS is required if you intend to use the EXEC CICS ISSUE PASS command, which passes existing terminal sessions to other VTAM applications.
Take care when selecting a suitable pacing count. Too low a value can lead to poor throughput because of the number of line turnarounds required. Too high a value can lead to excessive storage requirements.
For further information about the VTAM APPL statement, refer to the OS/390 eNetwork Communications Server: SNA Resource Definition Reference manual.
For APPC sessions, you can use the MODENAME option of the CICS DEFINE SESSIONS command (see Defining APPC links) to identify a VTAM logmode entry that in turn identifies the required entry in the VTAM class-of-service table. Every modename that you supply, when you define a group of APPC sessions to CICS, must be matched by a VTAM LOGMODE name. All that is required in the VTAM LOGMODE table are entries of the following form:
MODEENT LOGMODE=modename
MODEEND
An entry is also required for the LU services manager modeset (SNASVCMG):
MODEENT LOGMODE=SNASVCMG
MODEEND
If you plan to use autoinstall for single-session APPC terminals, additional information is required in the MODEENT entry. For programming information about coding the VTAM LOGON mode table, see the CICS Customization Guide.
For CICS-to-IMS™ links that are cross-domain, you must associate the IMS LOGMODE entry with the CICS applid (the generic applid for XRF systems), using the DLOGMOD or MODETAB parameters.