- Entry:
- CCI or CCO
- VIT option:
- SSCP
- Event:
- Requests/responses for neither RUPE nor NCSPL
- VIT processing module:
- ISTRACSC
- Control is returned to:
-
ISTINCCI for inbound processing
ISTINCCO for outbound processing
This trace record provides information about outbound processing, which processes a request, and inbound processing, which sends a response to the requester.
If this entry is associated with an event failure (that
is, the sense data is nonzero), this entry is generated whether the
SSCP option is in effect or not. It is treated as an exception condition
and, therefore, is traced whenever the VIT is active. 
- Byte (hex)
- Contents
- 00–02
- Record ID:
- C"CCI" for inbound processing
- C"CCO" for outbound processing
- 03
- Flags
- 80 = response RU
- 40 = sense traced
- 00 = request RU
- 04
- ID is the primary address space ID (ASID). This field is 0 if the ASID is greater than X'FF'.
- 05
- Control block ID (Control block IDs are shown in z/OS Communications Server: SNA Diagnosis Vol 1, Techniques and Procedures.)
- 06
- CPCB flag (CPCBFL)
- 07
- Return code (CPCBRC)
- 08–0B
- Save area address
- 0C–0F
- Save area ID (bytes 4, 5, 7, and 8 of the module name if available)
- 10–13
- Address of the issuer of the macro (CPCALL, CPEXIT, or CPWAIT)
- 14–17
- CPCB operation code (see z/OS Communications Server: SNA Diagnosis Vol 1, Techniques and Procedures.)
- 18–1B
- CPCB word 3 (field WTDPTR)
- 1C–1F
- CPCB word 4 (field CPCBPH)