smokeping_matchers_exploss(3) [debian man page]

..::lib::Smokeping::matchers::ExpLoss(3)			     SmokePing				  ..::lib::Smokeping::matchers::ExpLoss(3)

NAME

       Smokeping::matchers::ExpLoss - exponential weighting matcher for packet loss with RMON-like thresholds

DESCRIPTION

       Match against exponential weighted average of last samples, thus new values are more valuable as old ones. Two thresholds - rising and
       falling - produce hysteresis loop like in RMON alert subsystem. If the average reaches the "rising" threshold, matcher go to the "match"
       state and hold It until the average drops under the "falling" threshold.

       Call the matcher with the following sequence:

	type = matcher
	pattern =  CheckLoss(hist => <hist>, rising=><rising> 
			    [,falling => <falling>] [,skip=><stat>] [,fast=><fast>])

       Arguments:
	hist	- number of samples to weight against; weight will be disposed with
		  exponetial decreasing manner from newest to oldest, so that the
		  oldest sample would have 1% significance;
	rising	- rising threshold for packet loss, 0-100%
	falling - falling threshold for packet loss, default is <rising>
	skip	- skip <skip> number of samples after startup before "fire" alerts.
	fast	- use <fast> samples for fast transition: if the values of last <fast>
		  samples more then <rising> - take "match" state, if less then
		  <falling> - take "no match" state.

       Note:
	If the actual history is less then <hist> value then this value is taken
	as the actual history.

COPYRIGHT

       Copyright (c) 2008 Veniamin Konoplev

       Developed in cooperation with EU EGEE project

LICENSE

       This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by
       the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

       This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

       You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation,
       Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

AUTHOR

       Veniamin Konoplev <vkonoplev@acm.org>

2.6.8								    2012-02-26				  ..::lib::Smokeping::matchers::ExpLoss(3)

Check Out this Related Man Page

scantv(1)						      General Commands Manual							 scantv(1)

NAME

       scantv - scan a v4l device for TV stations.

SYNOPSIS

       scantv [ options ]

DESCRIPTION

       scantv scans a v4l device for available TV stations and writes a xawtv/fbtv config file.

OPTIONS

       -i input
	      set tv  input (Television/Composite1/S-video and so on).	Default is Television.

       -n norm
	      set tv  norm.   scantv will ask interactively if none is given.

       -f table
	      set frequency table.  scantv will ask interactively if none is given.

       -o outfile
	      specify output file.  If none is specified, scantv writes to stdout.

       -c device
	      specify video device file.  Default is /dev/video0.

       -D driver
	      specify video driver name.  Default is "libv4l".

       -C device
	      specify vbi device file.	Default is /dev/vbi0.

       -s     skip channel scan, just write norm + freqtab to the config file.

       -a     Do a full scan (i.e. all frequencies, not just the ones from the frequency table).

SEE ALSO

       xawtv(1), fbtv(1)

AUTHOR

       Gerd Knorr <kraxel@bytesex.org>

COPYRIGHT

       Copyright (C) 2000 Gerd Knorr <kraxel@bytesex.org>

       This  program  is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by
       the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

       This program is distributed in the hope that it will be useful, but WITHOUT ANY	WARRANTY;  without  even  the  implied	warranty  of  MER-
       CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

       You  should  have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation,
       Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

								(c) 2000 Gerd Knorr							 scantv(1)

Linux and UNIX Man Pages

smokeping_matchers_exploss(3) [debian man page]

Check Out this Related Man Page