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check_rrdtraf.php

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Because of my work I had to write a little PHP script to integrate with Nagios. It works checking local RRD databases (Nagios and Cacti on same computer for example) for incoming or outgoing transfer rates.
I think that this script can be useful to others, so I want to known if it
can be enhanced / corrected to be included in a future release.

The script, a configuration command file definition, and a demo host are
attached to this e-mail.

Saludos. Pablo.

Pd> Sorry for my bad English.

Pd2>
---------------------- help output ------------------------------------
$ check_rrdtraf.php -h
This plugin will check the incoming/outgoing transfer rates of a router,
switch, etc recorded in an Cacti rrd database
By Pablo Armando (c) 2009

Usage:
check_rrdtraf [-h] -f rrd_file -I|-O -w min_warning -W max_warning
-c min_critial -C max_critical

Example:
check_rrdtraf -f /var/lib/cacti/rra/mx_1_traffic_in_239.rrd -w 1000
-W 2000 -c 4000 -C 4500 -I

This checks if the input traffic (-I) is between 1000 and 2000kbps.
If this is true a warning message will be fired. If the input traffic
is between 4000 and 4500kbps then a critic message will be fired

-h Show this help
-f full path to rrd database
-I check input traffic from incoming data source
-O check output trafic from outgoing data source
-w start of warning range - Required
-W end of warning range - Required
-c start of critic range - Required
-C end of critic range - Required

The values for -w, -W, -c, and -C are expresed in kbps