isdntrace man page on MirBSD

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ISDNTRACE(8)		 BSD System Manager's Manual		  ISDNTRACE(8)

NAME
     isdntrace - isdn4bsd ISDN protocol trace utility

SYNOPSIS
     isdntrace [-a] [-b] [-d] [-f filename] [-h] [-i] [-l] [-n number] [-o]
	       [-p filename] [-r] [-u number] [-x] [-B] [-F] [-P] [-R unit]
	       [-T unit]

DESCRIPTION
     isdntrace is part of the isdn4bsd package and is used to provide the user
     with a mnemonic display of the layers 1, 2 and 3 protocol activities on
     the D channel and hex dump of the B channel(s) activities.

     Together with two passive supported cards and an easy to build cable it
     can also be used to monitor the complete traffic on a S0 bus providing S0
     bus analyzer features.

     The isdntrace utility is only available for passive supported cards.

     Note
     All filenames, user specified or default, get a date and time stamp
     string added in the form -yymmdd-hhmmss: a hyphen, two digits year,
     month, day, a hyphen and two digits hour, minutes and seconds. Trace
     files no longer get overwritten. In case a new filename is needed within
     a second, the filename-generating mechanism sleeps one second.
     In case the program is sent a USR1 signal, a new user specified or de-
     fault filename with a new date and time stamp is generated and opened.

     The following options can be used:

     -a	     Run isdntrace in analyzer mode by using two passive cards and a
	     custom cable which can be build as described in the file
	     cable.txt in the isdn4bsd source distribution. One card acts as a
	     receiver for the transmitting direction on the S0 bus while the
	     other card acts as a receiver for the receiving direction on the
	     S0 bus. Complete traffic monitoring is possible using this setup.

     -b	     switch B channel tracing on (default off).

     -d	     switch D channel tracing off (default on).

     -f	     Use filename as the name of a file into which to write tracing
	     output (default filename is isdntrace<n> where n is the number of
	     the unit to trace).

     -h	     switch display of header off (default on).

     -i	     print layer 1 (I.430) INFO signals to monitor layer 1 activity
	     (default off).

     -l	     switch displaying of Layer 2 (Q.921) frames off (default on).

     -n	     This option takes a numeric argument specifying the minimum frame
	     size in octets a frame must have to be displayed. (default 0)

     -o	     switch off writing trace output to a file (default on).

     -p	     Use filename as the name of a file used for the -B and -P options
	     (default filename is isdntracebin<n> where n is the number of the
	     unit to trace).

     -r	     Switch off printing a raw hexadecimal dump of the packets preced-
	     ing the decoded protocol information (default on).

     -u	     Use number as the unit number of the controller card to trace
	     (default 0).

     -x	     Switch on printing of packets with a non-Q.931 protocol discrimi-
	     nator. (default off).

     -B	     Write undecoded binary trace data to a file for later or remote
	     analyzing (default off).

     -F	     This option can only be used when option -P (playback from binary
	     data file) is used. The -F option causes playback not to stop at
	     end of file but rather to wait for additional data to be avail-
	     able from the input file.

	     This option is useful when trace data is accumulated in binary
	     format (to save disk space) but a monitoring functionality is
	     desired. (default off).

     -P	     Read undecoded binary trace data from file instead from device
	     (default off).

     -R	     Use unit as the receiving interface unit number in analyze mode.

     -T	     Use unit as the transmitting interface unit number in analyze
	     mode.

     When the USR1 signal is sent to a isdntrace process, the currently used
     logfiles are reopened, so that logfile rotation becomes possible.

     The trace output should be obvious. It is very handy to have the follow-
     ing standard texts available when tracing ISDN protocols:

	   I.430   ISDN BRI layer 1 protocol description.
	   Q.921   ISDN D-channel layer 2 protocol description.
	   Q.931   ISDN D-channel layer 3 protocol description.
	   1TR6	   German-specific ISDN layer 3 protocol description. (NOTICE:
		   decoding of the 1TR6 protocol is included but not supported
		   since i dont have any longer access to a 1TR6 based ISDN
		   installation.)

     isdntrace automatically detects the layer 3 protocol being used by look-
     ing at the Protocol Discriminator (see: Q.931/1993 pp. 53).

FILES
     /dev/isdntrc<n>
	       The device file(s) used to get the trace messages for ISDN card
	       unit <n> out of the kernel.

EXAMPLES
     The command:

	   isdntrace -f /var/tmp/isdn.trace

     will start D channel tracing on passive controller 0 with all except B
     channel tracing enabled and logs everything into the output file
     /var/tmp/isdn.trace-yymmdd-hhmmss (where yymmdd and hhmmss are replaced
     by the current date and time values).

SEE ALSO
     isdnd(8)

STANDARDS
     ITU Recommendations I.430, Q.920, Q.921, Q.930, Q.931

     FTZ Richtlinie 1TR3, Band III

     ITU Recommendation Q.932 (03/93), Q.950 (03/93)

     ETSI Recommendation ETS 300 179 (10/92), ETS 300 180 (10/92)

     ETSI Recommendation ETS 300 181 (04/93), ETS 300 182 (04/93)

     ITU Recommendation X.208, X.209

AUTHORS
     The isdntrace utility was written by Gary Jennejohn and
     Hellmuth Michaelis.

     This manual page was written by
     Hellmuth Michaelis <hm@kts.org>.

MirOS BSD #10-current	      February 13, 2000				     2
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