diff options
Diffstat (limited to 'usr.sbin/i4b/isdntrace/isdntrace.8')
-rw-r--r-- | usr.sbin/i4b/isdntrace/isdntrace.8 | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/usr.sbin/i4b/isdntrace/isdntrace.8 b/usr.sbin/i4b/isdntrace/isdntrace.8 index fc13bd4..fc89ace 100644 --- a/usr.sbin/i4b/isdntrace/isdntrace.8 +++ b/usr.sbin/i4b/isdntrace/isdntrace.8 @@ -75,9 +75,11 @@ Run in analyzer mode by using two passive cards and a custom cable which can be build as described in the file .Em cable.txt -in the isdn4bsd source distribution. One card acts as a receiver for the +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 +for the receiving direction on the S0 bus. +Complete traffic monitoring is possible using this setup. .It Fl b switch B channel tracing on (default off). @@ -116,7 +118,8 @@ Write undecoded binary trace data to a file for later or remote analyzing (default off). .It Fl 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 +is used. +The -F option causes playback not to stop at end of file but rather to wait for additional data to be available from the input file. .Pp This option is useful when trace data is accumulated in binary format (to @@ -139,7 +142,8 @@ When the USR1 signal is sent to a process, the currently used logfiles are reopened, so that logfile rotation becomes possible. .Pp -The trace output should be obvious. It is very handy to have the following +The trace output should be obvious. +It is very handy to have the following standard texts available when tracing ISDN protocols: .Pp .Bl -tag -width Ds -compact -offset indent |