Nagios-Switch-Ports-Monitoring
Switch there pors Monitoring with Nagios [edit]
We Use Here linuxbox.cfg for every Server or device to add with tha nagios.
1: Add new hostgroup or check the already hostgroup for switches in templates.cfg
if Needed Defined as Below
define hostgroup{
hostgroup_name switches
alias Network Switches
}
2: Add a new host for the switch to be monitered in linuxbox.cfg
define host{
use generic-switch
host_name core-switch
alias Cisco Core Switch
address 192.168.1.50
hostgroups switches
}
3: Add common services for all switches
# Service definition to ping the switch using check_ping
define service{
use generic-service
hostgroup_name switches
service_description PING
check_command check_ping!200.0,20%!600.0,60%
normal_check_interval 5
retry_check_interval 1
}
# Service definition to monitor switch uptime using check_snmp
define service{
use generic-service
hostgroup_name switches
service_description Uptime
check_command check_snmp!-C public -o sysUpTime.0
}
4: Add service to monitor port bandwidth usage
define service{
use generic-service
host_name core-switch
service_description Port 1 Bandwidth Usage
check_command check_local_mrtgtraf!/var/lib/mrtg/192.168.1.11_1.log!AVG!1000000,2000000!5000000,5000000!10
}
5: Add service to monitor an active switch port
# Monitor status of port number 1 on the Cisco core switch
define service{
use generic-service
host_name core-switch
service_description Port 1 Link Status
check_command check_snmp!-C public -o ifOperStatus.1 -r 1 -m RFC1213-MIB
}
# Monitor status of port number 5 on the Cisco core switch
define service{
use generic-service
host_name core-switch
service_description Port 5 Link Status
check_command check_snmp!-C public -o ifOperStatus.5 -r 1 -m RFC1213-MIB
}
6: Add services to monitor multiple switch ports together
# Monitor ports 1 - 6 on the Cisco core switch.
define service{
use generic-service
host_name core-switch
service_description Ports 1-6 Link Status
check_command check_snmp!-C public -o ifOperStatus.1 -r 1 -m RFC1213-MIB, -o ifOperStatus.2 -r 1 -m RFC1213-MIB, -o ifOperStatus.3 -r 1 -m RFC1213-MIB, -o ifOperStatus.4 -r 1 -m RFC1213-MIB, -o ifOperStatus.5 -r 1 -m RFC1213-MIB, -o ifOperStatus.6 -r 1 -m RFC1213-MIB
}
7: Validate configuration and restart nagios
# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
Total Warnings: 0 Total Errors: 0 Things look okay - No serious problems were detected during the pre-flight check
# /etc/rc.d/init.d/nagios restart Stopping nagios: .done. Starting nagios: done.