SNAX/APC Configuration and Management Manual

Trace Analysis Program
SNAX/APC Configuration and Management Manual—138787
5-14
Interpreting TRACE Entries
DIN and DOUT Entries
The following example illustrates a DIN entry. DOUT entries are similar to DIN entries,
except they show the response IPC header in place of the request IPC header, and the
reply UOW in place of the request UOW.
TRACE entry label. Identifies the source of the record. The only labels you see are
the BIU, DATA, and OPEN labels. The example record is a DIN entry.
@MUCB. Shows the double-word address of the message unit control block
(MUCB). All internal SNAX/APC traffic is preceded by an MUCB.
Sequence number. Identifies the record’s place in the trace record buffer. In this
case, the number is 8.
Date and time stamp. Identifies the date and time that this message unit was
processed.
MUCB. Shows the contents of the MUCB, information that might be required to
uniquely identify a conversation; for example, in the case of multiple sessions:
OCB ID identifies the process that opened the file: either a TP or SPI
LU ID identifies the local LU
SESSION ID identifies the session
TPI ID identifies the instance of the TP
CONV ID identifies the conversation
IPC HEADER. Shows the contents of the IPC header. This IPC header contains -2,
hex FFFE, which indicates STOP-ON-ERROR. Figure 5-2
illustrates the portions of
the IPC header.
=== =============== ================ ===================== =============
<DIN> @mucb 849642 seq: 8 05/13/92 11:38:43.68
sync 1
mucb:
OCB ID: %H0007
LU ID: %H0000; SESSION ID: %H0000
TPI ID: %H0000; CONV ID: %H0000
000CF6EA 000CF6EA 00660000 00000000 00000000
00000000 0007000C F41A0000 00000000 00000000
00000000 00000000 00000032
IPC HEADER:
request: STOP-ON-ERROR (-2)
version: S1
rid: %H0000, %H0000, %H0000
uows in: 01
uows out: 00
FFFE5331 00000000 00010000 78960001 00000000 [..S1................]
UOWs:
req : TP READY
uow id: 1332
535403F0 00500050 12FF4A55 44303031 20746533 [ST..YNLUS01 PROGS0]
31413030 31202020 2020 [1A001 ]
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