The internal topology traces provide a record of the creation,
update, and deletion of TRS (topology and routing services) topology
records. Trace data for the internal topology traces is always automatically
recorded.
There are three locations where topology tracing is done:
- In an NDREC (node record) trace table following the NDREC control
block, where the creation and update of a node record is recorded.
- In a TGREC (TG record) trace table following the TGREC control
block, where the creation and update of a TG record is recorded.
- In a common TRS trace table, where the deletion of NDRECs and
TGRECs are recorded.