trpt(8)trpt(8)NAMEtrpt - Transliterates protocol trace
SYNOPSIStrpt [-afjst] [-p address]
OPTIONS
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 packet-sequencing 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.
DESCRIPTION
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 set‐
sockopt(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 asso‐
ciated 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.
FILES
Specifies the command path.
SEE ALSO
Commands: netstat(1)
Functions: setsockopt(2)trpt(8)
