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Meru SNMP

Plugin-Pack Assets​

Monitored Objects​

The Plugin-Pack Meru SNMP collects metrics for:

  • Alarms
  • Cpu
  • Interfaces
  • Memory
  • Wireless

Collected Metrics​

Metric nameDescriptionUnit
alarms.critical.countNumber of critical alarms
alarms.major.countNumber of major alarms
alarms.minor.countNumber of minor alarms

Prerequisites​

To control your Meru, the SNMP must be configured.

Setup​

  1. Install the Centreon Plugin on every Poller:
yum install centreon-plugin-Network-Meru-Snmp
  1. On the Centreon Web interface in "Configuration > Plugin packs > Manager", install the Meru Networks SNMP Plugin-Pack

Host configuration​

  • Add a new Host and fill the IP Address/FQDN, SNMP Version and SNMP Community fields according to the device's configuration
  • Apply the Net-Meru-SNMP-Custom Host Template

When using SNMP v3, use the SNMPEXTRAOPTIONS Macro to add specific authentication parameters

MandatoryNameDescription
SNMPEXTRAOPTIONSConfigure your own SNMPv3 credentials combo

FAQ​

How to test the Plugin and what are the main options for?​

Once the plugin installed, log into your Centreon Poller CLI using the centreon-engine user account and test the Plugin by running the following command:

/usr/lib/centreon/plugins/centreon_meru_snmp.pl \
--plugin=network::meru::snmp::plugin \
--mode=wireless \
--hostname=10.30.2.114 \
--snmp-version='2c' \
--snmp-community='meru_ro' \
--critical-accesspoints-online='@19:19' \
--verbose

Expected command output is shown below:

OK: number of online access points: 19 - number of wireless stations: 3 | 'accesspoints.online.count'=19;;@19:19;0; 'stations.wireless.count'=3;;;0;

The command above monitors Meru device (--plugin=network::meru::snmp::plugin --mode=wireless) identified by the IP address 10.30.2.114 (--hostname=10.30.2.114). As the Plugin is using the SNMP protocol to request the device, the related community and version are specified (--snmp-version='2c' --snmp-community='meru_ro').

This command would trigger a CRITICAL alarm if the number of online access points is above or below 19 (--critical-accesspoints-online='@19:19').

All the options as well as all the available thresholds can be displayed by adding the --help parameter to the command:

/usr/lib/centreon/plugins/centreon_meru_snmp.pl \
--plugin=network::meru::snmp::plugin \
--mode=wireless \
--help

Troubleshooting​

UNKNOWN: SNMP GET Request : Timeout​

If you get this message, you're probably facing one of theses issues:

  • The SNMP agent of the device isn't started or is misconfigured
  • An external device is blocking the request (firewall, ...)

UNKNOWN: SNMP GET Request : Cant get a single value.​

This error message often refers to the following issues:

  • The agent doesn't support the MIB used by the plugin
  • The targeted SNMP OID cannot be fetched because of insufficient privileges on the device. SNMP Agent must be capable of accessing to the enterprise branch: .1.3.6.1.4.1.15983