trpt - Transliterates protocol trace
trpt [-afjst] [-p address]
Print the values of the source and destination addresses
for each packet recorded, in addition to the normal output.
Follows the trace as it occurs, waiting briefly for
additional records each time the end of the log is
reached. Lists the protocol control block addresses for
which trace records exist. See DESCRIPTION for more information.
Shows only trace records associated with the protocol
control block specified in hexadecimal by the
address variable.
You must include a space between the -p option and
the address variable when you specify this option.
Prints a detailed description of the packetsequencing
information, in addition to the normal
output. Prints the values for all timers at each
point in the trace, in addition to the normal output.
The trpt command, used for debugging sockets, queries the
buffer of Transmission Control Protocol (TCP) trace
records. The TCP trace record buffer is created when a
socket is marked for debugging with the setsockopt(2) subroutine.
The trpt command queries the buffer and then
prints a description of the trace records.
When you specify no options, the trpt command prints all
the trace records found in the system and groups them
according to their TCP/IP connection Protocol Control
Block (PCB).
If you are debugging a system file other than the default,
the system argument can be used to replace the default.
Before you can use the trpt command, you must do the following:
Isolate the problem and mark for debugging the
socket or sockets involved in the connection. Find the
address of the protocol control blocks associated with
these sockets by using the netstat -aA command. Then, you
can run the trpt command, using the -p option to supply
the associated protocol control block addresses. You can
specify multiple -p address options with a single trpt
command.
The -f option can be used to follow the trace log once it
is located. The -j option can be used to check for the
presence of trace records for the socket in question.
If the system image does not contain the proper symbols to
find the trace buffer, the trpt command cannot succeed.
Specifies the command path.
Commands: netstat(1)
Functions: setsockopt(2)
trpt(8)
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