Transmission group trace output

Figure 1 is an example of transmission group trace records.

The trace fields are explained after the figure. In addition to the fields described here, additional operating system-dependent fields may appear. For a description of these fields, see Table 1.

Figure 1. Example of transmission group trace output

LINE   LINE23    LRC(000,000)   INBOUND       ACTIVE       RNTIME=00
       TEXT 42000000 2000009A 00000004 0000000C 0E00000B
            0005808D 000ACB80 00A0
       TEXT 6E000000 F000009A 00000004 00000001 00000000
            00000032 20000000 00000823 00000000 00000000
            00000123 00000040

Table 1 describes the fields in the transmission group trace.

Table 1. Fields in the transmission group trace
Field header	Meaning
LINE linename	The name of the line associated with the transmission group trace. This line name was specified in the MODIFY TRACE command that started the transmission group trace. The line name is LINE23 in Figure 1.
LRC(`xxx`,`yyy`)	The number of records lost since the last trace record was written because the trace facility could not get a VTAM® buffer. The destination's lost record count is `xxx`, and the source's lost record count is `yyy`.
INBOUND	The direction of the data with respect to this host. It always says INBOUND because the data is always received from the NCP.
status	The status of the line being traced. In Figure 1, the line status is ACTIVE. The line status may also appear as DEACTIVATE or SLOWDOWN. ACTIVE means that the line trace is active. DEACTIVATE means that the line trace is not active. SLOWDOWN means that the line trace is not active because the NCP is in slowdown mode. A status of DEACTIVATE or SLOWDOWN appears only in the last record to be sent for that line. It means that no more data will be sent until the trace is activated again for that line.
RNTIME=`hh`	A timer field, where `hh` is a hexadecimal value indicating, in tenths of a second, the time at which the communication controller sent the completed line trace record to VTAM. This value is taken from a timer that is reset to 0 every 25.5 seconds. This value can be compared with the TIME value for the first level 2 interruption data contained in the second part of the line trace record. This comparison shows the elapsed time covered by this trace record. Comparing this with the number of level 2 interruptions contained in the trace record indicates the I/O activity during the elapsed time.
TEXT	Shows the TH and RH for each PIU that traversed the data path through the transmission group. If the PIU is for data flow control, session control, or network control, the full RU portion of the PIU is also included in the trace record. The RU may contain sense data. If the PIU is function management data (FMD) and contains an FM header, six bytes of the RU are included in the transmission group trace record. If an FMD PIU without an FM header is traced, the RU is not included.