ACF/SNA definition for CICS

MODETAB=logon-mode-table-name

This operand names the SNA logon mode table that contains your customized logon mode entries. See ACF/Communications Server LOGMODE table entries for CICS for more information. You can omit this operand if you choose to add your MODEENT entries to the IBM® default logon mode table, without renaming it.

AUTH=(ACQ,SPO,VPACE[,PASS])

ACQ is required to allow CICS to acquire LU type 6 sessions. SPO is required to allow CICS to issue the MVS MODIFY snaname USERVAR command. VPACE is required to allow pacing of the intersystem flows.

PASS is required if you intend to use the EXEC CICS ISSUE PASS command, which passes existing terminal sessions to other SNA applications.

VPACING=number

This operand specifies the maximum number of normal-flow requests that another logical unit can send on an intersystem session before waiting to receive a pacing response.

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.

EAS=number

This operand specifies the number of network-addressable units that CICS can establish sessions with. The number must include the total number of parallel sessions for this CICS system.

PARSESS=YES

This option specifies LU type 6 parallel session support.

SONSCIP=YES

This operand specifies session outage notification (SON) support. SON enables CICS, in particular cases, to recover a failed session without requiring operator intervention.

APPC=NO

APPC=NO is required for CICS. This setting is the default. If you do not use APPC=NO, you receive message DFHZC2400E, referencing the SNA return code 1013.

For more information about the SNA APPL statement, see z/OS Communications Server: SNA Resource Definition Reference.