-------------------------------Switch-------------------------------

Switch>enSwitch#conf tSwitch(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 Kingcraftdefine 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