OSI/AS Programming Manual

Parameter Structures
DDL Definitions
A–12 056783 Tandem Computers Incorporated
For X25AM connections, ZX25 contains diagnostic information returned by X25AM.
ZX25-DISC-REASON specifies the reason for the circuit disconnection. For more
information, refer to the Tandem X.25 Access Method (X25AM) Manual.
ZX25-CLEAR-CAUSE specifies the clear cause. For more information, refer to the
Tandem X.25 Access Method (X25AM) Manual.
ZX25-DIAGCODE specifies the diagnostic code. For more information, refer to
the Tandem X.25 Access Method (X25AM) Manual.
FILLER fields are reserved.
ZAPS-DDL-L5-CONID is the session connection identifier. Do not confuse it with the
connection endpoint identifier (CEPI). See the note under “Connection Endpoint
Identifier (CEPI)” in Section 2.
DEFINITION ZAPS-DDL-L5-CONID.
02 ZCALLING-REF.
03 ZLEN TYPE ZAPS-DDL-INT1.
03 ZVAL PIC X(64).
02 ZCALLED-REF.
03 ZLEN TYPE ZAPS-DDL-INT1.
03 ZVAL PIC X(64).
02 ZCOMMON-REF.
03 ZLEN TYPE ZAPS-DDL-INT1.
03 ZVAL PIC X(64).
02 ZADDITIONAL-REF.
03 ZLEN TYPE ZAPS-DDL-INT1.
03 ZVAL PIC X(4).
END
For each of the following fields, ZLEN indicates the length and ZVAL indicates the
value.
ZCALLING-REF is an optional reference, entered by the application initially
requesting the connection. Therefore, this field is relevant only for use with the
APS_ASSOC_CONNECTREQ_ procedure, and is ignored if specified in a call to the
APS_ASSOC_CONNECTRSP_ procedure.
ZCALLED-REF is an optional reference, entered by the application responding to a
connect request. Therefore, this field is relevant only for use with the
APS_ASSOC_CONNECTRSP_ procedure, and is ignored if specified in a call to the
APS_ASSOC_CONNECTREQ_ procedure.
ZCOMMON-REF and ZADDITIONAL-REF can be used in any way acceptable to your
application and to the remote application.