- Entry:
- TOPN
- VIT option:
- SSCP
- Event:
- Topology node entry modified
- VIT processing module:
- ISTITCST
- Control is returned to:
- Module invoking the INTRACE TYPE(TOPN) macro
This record is generated when a node entry in the topology database is created or modified.
- Byte (hex)
- Contents
- 00–03
- Record ID: C"TOPN"
- 04
- ID is the primary address space ID (ASID). This field is 0 if the ASID is greater than X'FF'.
- 05
- 0
- 06
- Action performed on Topology Database:
- Code
- Meaning
- C"A"
- Add node record
- C"D"
- Delete node record
- C"U"
- Update node record
- 07
- 0
- 08–0F
- CP name of the node represented by this node record
- 10–13
- Return address of the module that changed the Topology Database
- 14–17
- Node header pointer
- 18–1A
- 0
- 1B
- Flag bytes as follows:
- Bit
- Meaning
- 11.. ....
- Node type
- B"00"
- End node
- B"01"
- Network node
- B"10"
- Virtual routing node
- ..1. ....
- Indicate whether this node is nonnative
- ...x xxxx
- Not used
- 1C–1F
- Request parameter header (RPH) address