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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 dt] [-o t2]  [-t
       t1] [interface1 interface2...]

OPTIONS
       Adds  an interface or interfaces, specified by the interface parameter.
       You cannot specify the -a option with the -m, -s, -r,  or  -u  options.
       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 t1 (see the -t option). The default time period is 5 seconds.
       If  dt  is  not	specified, niffconfig uses the default.	 Specifies the
       total number of traffic-free seconds that must elapse before the	 traf‐
       fic  monitor  thread  determines	 that  a network interface has failed.
       This number must be at least the sum of the t1 and two times dt.	  That
       is,  given  the	default time period for dt (5 seconds) and t1 (20 sec‐
       onds), the t2 value must be at least  30	 seconds.   The	 default  time
       period  for  t2	is 60 seconds. If t2 is not specified, niffconfig uses
       the default.  Modifies the timing parameters of an  interface  that  is
       already being monitored. Typically, this option is specified along with
       one or more of -t t1, -d dt, or -o t2 options.  If any of these parame‐
       ters are not specified, their default value is used. You cannot specify
       the -m option with the -a, -s, -r, -u, or -v options.  Stops monitoring
       the  specified  interface.   Obtains the status of the specified inter‐
       face.  Specifies the time period, in seconds, that the traffic  monitor
       thread  delays between reads of the interface counters when the network
       is running normally.  The default time period is 20 seconds. If	t1  is
       not specified, niffconfig uses the default.  Displays the status of all
       interfaces currently being monitored to standard	 out  (stdout).	  Dis‐
       plays  the  status, timer values, and description (verbose mode) of all
       interfaces currently being monitored  to	 standard  out	(stdout).  See
       nifftmt(7) for a definition of each of the parameters.

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 niffconfig command.

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

       You  can specify the t1, dt, and t2 timer values as decimal values (for
       example, 2.6 or 0.8).  When setting timer values	 with  the  -a	or  -m
       options, all 3 timer values (t1, dt, and t2) are validated as described
       in nifftmt(7). If the validation fails, the operation is cancelled  and
       a message is printed to stdout.

       NetRAIN	initiates  its	own internal interface monitoring (using NIFF)
       when a NetRAIN set is created. NetRAIN monitored interfaces are visible
       only with the -v option. You cannot use niffconfig to perform any other
       management operations on the NetRAIN interfaces. To  modify  the	 timer
       values for NetRAIN monitored interfaces, use the ifconfig command.

       You  can	 start	additional  monitoring of an interface that is already
       being monitored internally for NetRAIN. In that case, the niffconfig -v
       command	will  display  the two different monitoring structures for the
       interface.  All other niffconfig options will operate only on the  non-
       NetRAIN monitoring structure.

RESTRICTIONS
       You  cannot add a reserved interface (RESERVED flag is set) to the list
       of monitored interfaces.

EXAMPLES
       To add the tu0 and tu1 interfaces to the list of monitored  interfaces,
       enter:  #  niffconfig -a tu0 tu1 To change the time it takes to declare
       failure on the tu1 interface to 90 seconds, enter: # niffconfig	-o  90
       tu1  To	display the status of all interfaces that are being monitored,
       enter: # niffconfig -u To stop monitoring the tu0 interface,  enter:  #
       niffconfig -r tu0 To display all parameters for all interfaces that are
       being monitored, including NetRAIN interface monitoring, enter: # niff‐
       config -v

SEE ALSO
       Daemons: niffd(8)

       Information: EVM(5), nifftmt(7)

								 niffconfig(8)
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