z/OS Communications Server: ACF/TAP Trace Analysis Handbook
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CSS line trace report

z/OS Communications Server: ACF/TAP Trace Analysis Handbook
GC27-3645-00

The selection parameter is CSPRT, which applies to NCP V6R2 and later releases.

Figure 1 shows a sample report.

Table 1 describes the column headers and the trace data contained in this report type. To locate this information about the sample reports, match the numbers (n) listed in this table to the corresponding numbers (n) shown in the sample reports.

Table 1. Report description legend for CSS line trace reports
Reference number (n) Report column headers and the trace data
1 The page heading contains the report name, report parameter, and the date the report was printed or displayed.
2
RECORD/MESSAGE
The record is the ACF/TAP-assigned sequence number of the physical line trace record that ACF/TAP was processing when this line was printed. The message number is an ACF/TAP assigned number that identifies the PIU for correlation with SNA detail and SNA summary reports.
3
TYPE
For CSS type line trace entries, this field always contains CSS.
4
LINE ADDRESS
The element address of the physical line that was being traced.
5
LOGICAL LINE
The element address of the logical line being traced. For physical line trace entries, the log line field contains a zero value.
6
ID
Identifies the control block that is displayed in the trace entry.
ECB
Extended control block flag byte.
LDPSA
CSS processor-to-NCP parameter dynamic status area
LPARM
CSS processor-to-NCP status area
LPSA
CSS processor-to-NCP parameter status area
LSTAT
CSS processor-to-NCP status area
NDPSA
NCP-to-CSS processor dynamic status area
NPARM
NCP-to-CSS processor parameter area
NDPSA
NCP-to-CSS processor parameter status area
NSTAT
NCP-to-CSS processor status area
RDATA
Receive data
XDATA
Transmit data
7
COMMAND QUALIFIER
The command and qualifier being processed when the trace record was written.
8
TIME
The relative elapsed time (in hexadecimal) between the entries to the nearest 100 milliseconds. The time is measured from the activation of the trace to the level 2 interrupt represented by each entry.
9
SEQ
The sequence counter from the control block being displayed.
10
HEX
The hexadecimal trace entry from the control block.
11
TRANSLATION
This is the EBCDIC equivalent of the hexadecimal trace data.
12 Pertinent fields extracted from the preceding trace entry and displayed on a separate line as field names, followed by their corresponding values in parentheses.

For a detailed description of the column headers and trace data, reference the numbers (n) shown on the sample report to the corresponding numbers (n) listed in Table 1.

For more information about gathering data for this trace, see Gathering host-collected trace data.

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Copyright IBM Corporation 1990, 2014