Monitortheswitch
-------------------------------Switch-------------------------------
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Switch>en
Switch#conf t
Switch(config)#snmp-server community first-switch ro
Switch(config)#snmp-server enable traps
-------------------------------Monitoring Server-------------------------------
Install snmp：
#rpm -ivh lm_sensors-2.10.7-9.el5.x86_64.rpm
#rpm -ihv net-snmp-5.3.2.2-17.el5.x86_64.rpm
#rpm -ivh net-snmp-utils-5.3.2.2-17.el5.x86_64.rpm
Re-compile and install nagios-plugins：
#tar -xzf nagios-plugins-1.4.16.tar.gz
#cd nagios-plugins-1.4.16
#./configure --sysconfdir=/etc/nagios \
--with-nagios-user=nagios \
--with-nagios-group=nagios \
--prefix=/usr/local/nagios
#make
#make install
Definition monitor file：
#vi /etc/nagios/objects/switch.cfg
#Add by Kingcraft
define host{
use generic-switch,host-pnp ; Inherit default values from a template
host_name linksys-srw224p ; The name we're giving to this switch
alias Linksys SRW224P Switch ; A longer name associated with the switch
address 192.168.60.16 ; IP address of the switch
}
define service{
use generic-service,srv-pnp ; Inherit values from a template
host_name linksys-srw224p ; The name of the host the service is associated with
service_description PING ; The service description
check_command check_ping!200.0,20%!600.0,60% ; The command used to monitor the service
normal_check_interval 5 ; Check the service every 5 minutes under normal conditions
retry_check_interval 1 ; Re-check the service every minute until its final/hard state is determined
}
define service{
use generic-service,srv-pnp ; Inherit values from a template
host_name linksys-srw224p
service_description Uptime
check_command check_snmp!-C first-switch -o sysUpTime.0
}
define service{
use generic-service,srv-pnp ; Inherit values from a template
host_name linksys-srw224p
service_description Port 1 Link Status
check_command check_snmp!-C first-switch -o ifOperStatus.10001 -r 1
}
define service{
use generic-service,srv-pnp
host_name linksys-srw224p
service_description Port 24 Link Status
check_command check_snmp!-C first-switch -o ifOperStatus.10024 -r 1
}
define service{
use generic-service,srv-pnp
host_name linksys-srw224p
service_description ciscoMemoryPoolFree
check_command check_snmp!-C first-switch -o .1.3.6.1.4.1.9.9.48.1.1.1.6.16 ; The size of the free memory
}
define service{
use generic-service,srv-pnp
host_name linksys-srw224p
service_description ciscoCPUTotal1min
check_command check_snmp!-C first-switch -o .1.3.6.1.4.1.9.9.109.1.1.1.1.4.1 ; The overall CPU busy percentage in the last 1 minute period
}
define service{
use generic-service,srv-pnp
host_name linksys-srw224p
service_description flow
check_command check_snmp!-C first-switch -o ifInOctets.10024 -w 5000000000-6000000000 -c 6000000000-8000000000 ; The total number of octets received on the interface,including framing characters
}Empowering for monitoring files：
#chown nagios:nagios /etc/nagios/objects/switch.cfg
Modify the nagios configuration file：
#vi /etc/nagios/nagios.cfg
#Add by Kingcraft
cfg_file=/etc/nagios/objects/switch.cfg
Syntax checking：
#/usr/local/nagios/bin/nagios -v /etc/nagios/nagios.cfg
restart httpd&nagios：
#service httpd restart
#service nagios restart
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