check_snmp CPU Load strange result

[Pascal Wessel]

Nagios gives me warning when snmp_check 'ing for Cisco 3640 CPU load /
IOS is (C3640-IK9O3S-M), Version 12.2(10a) but the CPU load is below my
Warning threshold.

When launched from the command-line with verbose output:

[libexec]# ./check_snmp -v -t 10 -H 192.168.1.1 -o
.1.3.6.1.4.1.9.2.1.57.0,.1.3.6.1.4.1.9.2.1.58.0 -C publicro -w '60,69',
-c
 '70,80' -l 'CPU usage 1min/5min' -D ' / '
/usr/bin/snmpget -m ALL -v 1 -c publicro 192.168.1.1:161
.1.3.6.1.4.1.9.2.1.57.0 .1.3.6.1.4.1.9.2.1.58.0
enterprises.9.2.1.57.0 = 4
enterprises.9.2.1.58.0 = 3

CPU usage 1min/5min WARNING - *4* / *3*

As you can see.. (and if I understood the syntax)
Warning status should be triggered when the CPU load is between 60 and
69%
Critical status should be triggered when the router CPU is between 70 to
80%

#----
My question is: why this check reports WARNING as my router CPU load (4%
last minute and 3% last 5 min) is below the WARNING threshold ?
#----

My Nagios system installation is as follows:

System Intel i686, Mandrake 9.0, Kernel 2.4.19-16
NAGIOS: Nagios 1.0b6 
Plugins: nagios-plugins-200211131100
Check_snmp: Revision: 1.17
SNMP:
	libsnmp0-4.2.3-4mdk
	ucd-snmp-4.2.3-4mdk
	ucd-snmp-utils-4.2.3-4mdk

Below a snip of my "cfg file

#--- hosts.cfg for myrouter

define host {
name                           		generic-host     
notifications_enabled          	1                ; Host notifications
are enabled
event_handler_enabled          	1                ; Host event handler is
enabled
flap_detection_enabled         	1                ; Flap detection is
enabled
process_perf_data              	1                ; Process performance
data
retain_status_information      	1                ; Retain status
information across program restarts
retain_nonstatus_information   	1                ; Retain non-status
information across program restarts
max_check_attempts             	10
register                       0                ; DONT REGISTER THIS
DEFINITION - ITS NOT A REAL HOST, JUST A TEMPLATE!
}

define host {
use                            		generic-host             ; Name
of host template to use
host_name                      	myrouter
alias                          		Router Gva Coulou -6
address                        		192.168.1.1
check_command                  	check-host-alive
notification_interval          	60
notification_period            	24x7
notification_options          	d,u,r
}

#--- services.cfg
define service {
name                           		generic-service  ; 
active_checks_enabled          	1        ; Active service checks are
enabled
passive_checks_enabled         	1        ; Passive service checks are
enabled/accepted
parallelize_check              	1        ; Active service checks should
be parallelized 
obsess_over_service            	1        ; We should obsess over this
service (if necessary)
check_freshness                	0        ; Default is to NOT check
service 'freshness'
notifications_enabled          	1        ; Service notifications are
enabled
event_handler_enabled          	1        ; Service event handler is
enabled
flap_detection_enabled         	1        ; Flap detection is enabled
process_perf_data              	1        ; Process performance data
retain_status_information      	1        ; Retain status information
across program restarts
retain_nonstatus_information   	1        ; Retain non-status information
across program restarts
normal_check_interval          	5
retry_check_interval           	2
notification_period            	24x7
notification_options           	u,c,r
register                       		0        ; DONT REGISTER THIS
DEFINITION
}

define service{
use                             		generic-service
host_name                       	myrouter
service_description             	CPU
is_volatile                     		0
check_period                    	24x7
max_check_attempts              	3
retry_check_interval            	1
contact_groups                  	router-admins
notification_interval           	120
notification_period             	24x7
check_command
check_cisco_cpu!publicro!60!69!70!80
}



#--- checkcommands.cfg
# 'check_snmp' generic command definition
define command{
command_name    check_snmp
command_line    $USER1$/check_snmp -t 10 -H $HOSTADDRESS$ -C $ARG1$
$ARG2$ $ARG3$ $ARG4$ $ARG5$ $ARG6$ $ARG7$ $ARG8$ $ARG9$
}
# check_cisco_cpu: checks router CPU-usage
# Syntax
!Hostname!Community!WARN-1min-%!WARN-5min-%!CRIT-1min-%!CRIT-5min-%
define command{
command_name    check_cisco_cpu
command_line    $USER1$/check_snmp -t 10 -H $HOSTADDRESS$
-o.1.3.6.1.4.1.9.2.1.57.0,.1.3.6.1.4.1.9.2.1.58.0 -C $ARG1$ -w
:$ARG2$,:$ARG3$ -c :
$ARG4$,:$ARG5$ -l 'CPU usage 1min/5min' -D ' / '
}



Btw, by looking at the code in check_snmp.c I'm wondering .
Is there a problem with : #define mark(a) ((a)!=0?"*":"") in
check_snmp.c ??? Or are my parms so bad ? :-o

Thanks for your kind help.
Warm regards,
Pascal



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