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niffconfig(8)							niffconfig(8)



NAME

  niffconfig - Configuration program for the Network Interface Failure Finder
  (NIFF)

SYNOPSIS

  /usr/sbin/niffconfig [-a] [-m] [-r] [-s] [-u]	[-v] [-d num] [-o num] [-t
  num] [interface1 interface2...]

OPTIONS

  -a  Adds an interface	or interfaces, specified by the	interface parameter.
      You cannot specify the -a	option with the	-m, -s,	-r, or -u options.

  -d num
      Specifies	the time period, in seconds, that the traffic monitor thread
      uses between reads of the	interface counters when	it suspects there is
      a	connectivity problem. This number must be smaller than the number
      given for	the -t option. The default time	period is 5 seconds. If	num
      is not specified,	niffconfig uses	the default.

  -o num
      Specifies	the total number of traffic-free seconds that must elapse
      before the traffic monitor thread	determines that	a network interface
      has failed.  This	number must be at least	the sum	of the -d option and
      two times	the -t option.	That is, given the default time	period for -d
      and -t, the -o option must be at least 20	seconds.  The default time
      period for this option is	60 seconds. If num is not specified, niffcon-
      fig uses the default.

  -m  Modifies the timing parameters of	an interface that is already being
      monitored. Typically, this option	is specified along with	one or more
      of -t num, -d num, or -o num options.  If	none of	these parameters are
      specified, the default value is used. You	cannot specify the -m option
      with the -a, -s, -r, or -u options.

  -r  Stops monitoring the specified interface.

  -s  Obtains the status of the	specified interface.

  -t num
      Specifies	the time period, in seconds, that the traffic monitor thread
      delays between reads of the interface counters when the network is run-
      ning normally.  The default time period is 20 seconds. If	num is not
      specified, niffconfig uses the default.

  -u  Displays the status of all interfaces currently being monitored to
      standard out (stdout).

  -v  Displays the status, timer values, and description (verbose mode)	of
      all interfaces currently being monitored to standard out (stdout).


DESCRIPTION

  The niffconfig command arranges for one or more network interfaces to	be
  monitored for	possible loss of connectivity.	Timing parameters that govern
  how quickly an interface can be declared suspect or dead may be manipulated
  with this command. You can specify multiple interfaces, separated by a
  space, on the	command	line. Note, you	must be	superuser to use the niffcon-
  fig command.

  Except for the -u and	-u options, all	niffconfig options require one or
  more network interfaces to be	specified.

EXAMPLES

   1.  To add the tu0 and tu1 interfaces to the	list of	monitored interfaces,
       enter:
	    # niffconfig -a tu0	tu1

   2.  To change the time it takes to declare failure on the tu1 interface to
       90 seconds, enter:
	    # niffconfig -o 90 tu1

   3.  To display the status of	all interfaces that are	being monitored:
	    # niffconfig -u

   4.  To stop monitoring the tu0 interface:
	    # niffconfig -r tu0



SEE ALSO

  Daemons: niffd(8)

  Information: EVM(5), nifftmt(7)