- Byte (hex)
- Contents
- 00–03
- Record ID: C"IUTD" for OSA-Express QDIO or HiperSockets™
- 04
- ID is the primary address space ID (ASID). This field is 0 if the ASID is greater than X'FF'.
- 05–06
- 0
- 07
- Priority
- 08–0B
- Provider ID (TOKEN)
- 0C–0F
- Status. See the z/OS Communications Server: IP and SNA Codes for more information about DLC status codes.
- 10–13
- 0
- 14–17
- DINCB address
- 18–1B
- Return address of caller
- 1C–1F
- Request parameter header (RPH) address