Exchange/RJE Manual

TRACE Command
Exchange/RJE Commands
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TRACE Command The TRACE command starts and stops the Exchange/RJE trace server, which logs the
activity on the data communications line.
T[RACE] { T[O] trace-file [ parameter ]... | S[TOP] }
T[O] trace-file
specifies the name of the file where you want to log the line activity. If the file
does not exist, one is created with a file code of 904. If the file already exists, it is
purged and a new one is created.
If you omit the volume name, the default volume is your current default volume.
If you omit both the volume and subvolume names, the default volume and
subvolume are your current default volume and subvolume.
parameter
is one of the following terms:
B[LOCKS] maximum
specifies the maximum number of blocks that the trace file is to hold at once.
After the maximum number of blocks has been written to the trace file, the
writing of blocks continues from the beginning of the file again. The oldest
blocks are replaced by the most recent blocks. After the first cycle (the trace
file has filled up once), the trace file always contains maximum of the most
recent blocks.
The blocks referred to here are the text blocks transmitted over the data
communications line. The block size varies according to the type of emulation
being performed (2780 or 3780) and the size and number of the records in each
block. See the RECEIVE command and the SEND command for more
information on block size.
If you omit this parameter, the maximum number of blocks is determined by
the size of the trace file. The writing of blocks cycles to the beginning of the
file when the end of the file is reached.
If you specify a maximum number of blocks larger than the number of blocks
the trace file can hold, the number you specified is ignored and the maximum
number of blocks is determined by the size of the trace file.