Editing Nagios-Switch-Ports-Monitoring (section)

== '''Switch there pors Monitoring with Nagios ''' ==

 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.

Ref Url: http://exchange.nagios.org/directory/Tutorials/Other-Tutorials-And-HOWTOs/How-To-Monitor-Network-Switch-and-Ports-Using-Nagios/details