port monitor for ISDN devices
isdnmon is an ISDN port monitor.
It controls all /dev/isx
interfaces that are ISDN devices configured for incoming
calls. isdnmon is started by
when the first ISDN device is configured for incoming
calls, and stopped by netcfg the last device configured
for incoming calls is removed. It should only be running when
ISDN devices exist and are configured for incoming calls.
isdnmon creates a child process using
to handle each incoming call.
isdnmon monitors multiple interfaces.
It is not necessary
to have multiple instances of isdnmon for multiple
isdnmon is configured to run under
(the Service Access Controller) as part of the
Service Access Facility (SAF).
netcfg configures isdnmon using the
It accepts or rejects calls based on the contents of the
It is not necessary to start and stop isdnmon with the
Under normal circumstances, isdnmon should only be
controlled by netcfg; it should not be invoked from
the command line.
isdnmon can be used to troubleshoot suspected problems
with incoming ISDN calls. To do so, you must stop
isdnmon and create log files before starting it again.
sacadmin -k -p isdnmon
sacadmin -s -p isdnmon
These files are created in the /var/saf/isdnmon/
contains a record of all activity on the ISDN port,
including the process ID (pid) numbers of the child
process handling each call
alerts isdnmon to create per-call logs but does not
contain any information
contains information about each call, identified by the call
handler's pid number
No incoming connections are made while isdnmon is
isdnmon log files are cumulative and grow rapidly. If
you plan to use them for extended periods of time, you should
clean them out regularly with
© 2004 The SCO Group, Inc. All rights reserved.
UnixWare 7 Release 7.1.4 - 25 April 2004