AP entry for signals passed between components of the APPN CP
- Entry:
- AP
- VIT option:
- SSCP
- Event:
- Signals passed between components of the APPN CP
- VIT processing module:
- ISTRACSC
- Control is returned to:
- Module invoking the INTRACE macro that caused the record to be produced.
This trace record provides information about inbound request
and responses which are processed by the CP. If this entry is associated
with an event failure, nonzero sense code, it is generated regardless
of the SSCP option. It is recognized as an exception code and is traced
when the VIT is active.
- Byte (hex)
- Contents
- 00–01
- Record ID: C"AP"
- 02
- To process anchor block (PAB) identification byte:
- Code (hex)
- ID
- "A"
- Advanced program-to-program communication (APPC)
- "B"
- CMIP services session layer
- "C"
- Session services for CP-CP sessions (SSC)
- "D"
- APPN directory services (DR)
- "E"
- Directory services management exit (DSME)
- "F"
- CMIP services association control function, association control service element, directory service element, presentation
- "G"
- VTAM® topology agent (TOPO)
- "H"
- Half session (HS)
- "I"
- Disk input or output Note: This code is an uppercase letter I.
- "J"
- Management services transport (MST) main processing
- "K"
- CMIP services initialization, termination, and command processing
- "L"
- Session services for LU-LU sessions (SSL)
- "M"
- Management services transport (MST) initialization processing
- "N"
- Node operator services
- "O"
- CMIP services management information base (MIB) controller
- "P"
- SSCP functions
- "Q"
- CMIP services scoping and replication
- "R"
- CMIP services event filtering and forwarding
- "S"
- System services control point (SSCP)
- "T"
- Topology and routing services (TRS)
- "U"
- Recovery RTP context manager (RCM)
- "V"
- Recovery manager (RVM)
- "X"
- Transaction programs (XP)
- "Y"
- Recovery PAB (RPAB)
- "Z"
- Dependent LU server (DLUS)
- "l"
- LU server (LUS) Note: This code is a lowercase letter L.
- 03
- From process anchor block (PAB) Identification byte. The codes are the same as byte 2.
- 04
- ID is the primary address space ID (ASID). This field is 0 if the ASID is greater than X'FF'.
- 05–07
- Last three characters of the module invoking APSEND. (The characters KWN indicate that the module name is not known.)
- 08–0B
- Address of the issuer of the APSEND module
- 0C–0F
- Sense code or 0
- 10–1F
- First 16 bytes of the interprocess signal (IPS). For a list of interprocess signals, see z/OS® Communications Server: SNA Data Areas Volume 2.