TRPT(8C)																  TRPT(8C)

NAME

       trpt - transliterate protocol trace

SYNOPSIS

       trpt [ -a ] [ -s ]  [ -t ] [ -f ] [ -j ] [ -p hex-address ] [ system [ core ] ]

DESCRIPTION

       Trpt  interrogates  the buffer of TCP trace records created when a socket is marked for "debugging" (see setsockopt(2)), and prints a read-
       able description of these records.  When no options are supplied, trpt prints all the trace records found in the system	grouped  according
       to TCP connection protocol control block (PCB).	The following options may be used to alter this behavior.

       -a     in addition to the normal output, print the values of the source and destination addresses for each packet recorded.

       -s     in addition to the normal output, print a detailed description of the packet sequencing information.

       -t     in addition to the normal output, print the values for all timers at each point in the trace.

       -f     follow the trace as it occurs, waiting a short time for additional records each time the end of the log is reached.

       -j     just give a list of the protocol control block addresses for which there are trace records.

       -p     show only trace records associated with the protocol control block, the address of which follows.

       The recommended use of trpt is as follows.  Isolate the problem and enable debugging on the socket(s) involved in the connection.  Find the
       address of the protocol control blocks associated with the sockets using the -A option to netstat(1).  Then run trpt with  the  -p  option,
       supplying  the  associated  protocol control block addresses.  The -f option can be used to follow the trace log once the trace is located.
       If there are many sockets using the debugging option, the -j option may be useful in checking to see if any trace records are  present  for
       the socket in question.	The

       If  debugging  is  being  performed  on	a  system  or core file other than the default, the last two arguments may be used to supplant the
       defaults.

FILES

       /vmunix
       /dev/kmem

SEE ALSO

       setsockopt(2), netstat(1), trsp(8C)

DIAGNOSTICS

       ``no namelist'' when the system image doesn't contain the proper symbols to find the trace buffer; others which should be self explanatory.

BUGS

       Should also print the data for each input or output, but this is not saved in the race record.

       The output format is inscrutable and should be described here.

4.2 Berkeley Distribution					   May 26, 1986 							  TRPT(8C)