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To configure the sensors polling in OpenNMS it is necessary to make the following changes in the configuration files:

Add to directory opennms / etc / data collection file vutlan.xml as follows:

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vutlan.xml

Code Block

<?xml version="1.0"?>
<datacollection-group name="vutlan">
  <!-- vutlan Resource Types -->
  <resourceType name="hrElementIndex" label="Element ID">
    <persistenceSelectorStrategy class="org.opennms.netmgt.collectd.PersistAllSelectorStrategy"/>
    <storageStrategy class="org.opennms.netmgt.dao.support.IndexStorageStrategy"/>
  </resourceType>
  <!-- vutlan mibs -->
  <group name="vutlanElements" ifType="all">
    <mibObj oid=".1.3.6.1.4.1.39052.1.3.1.7" instance="hrElementIndex" alias="hrElementName" type="string"  />
    <mibObj oid=".1.3.6.1.4.1.39052.1.3.1.9" instance="hrElementIndex" alias="hrElementValue" type="octetstring" />
  </group>

  <systemDef name="vutlan EMS">
    <sysoidMask>.1.3.6.1.4.1.8072.3.2.</sysoidMask>
      <collect>
        <includeGroup>vutlanElements</includeGroup> 
      </collect>
  </systemDef>
</datacollection-group>

Enable file processing vutlan.xml in opennms / etc / data collection-config.xml file
datacollection-config.xml
Code Block
language html/xml

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<?xml version="1.0"?>
<datacollection-config rrdRepository="/opt/opennms/share/rrd/snmp/">
  <snmp-collection name="default" snmpStorageFlag="select">
    <rrd step="300">
      <rra>RRA:AVERAGE:0.5:1:2016</rra>
      <rra>RRA:AVERAGE:0.5:12:1488</rra>
      <rra>RRA:AVERAGE:0.5:288:366</rra>
      <rra>RRA:MAX:0.5:288:366</rra>
      <rra>RRA:MIN:0.5:288:366</rra>
    </rrd>
    ..
    <include-collection dataCollectionGroup="Vutlan"/>
  </snmp-collection>
</datacollection-config>

Create a report

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in opennms/etc/snmp-graph.properties:
snmp-graph.properties
Code Block
language bash

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# do not forget to include in the list of reports
reports=mib2.HCbits, mib2.bits, mib2.percentdiscards, mib2.percenterrors, \
..
mysql.key.reads, mysql.key.writes, \
vutlan.elements

# report in the form of graphs
report.vutlan.elements.name=Data
report.vutlan.elements.columns=hrElementValue
report.vutlan.elements.type=hrElementIndex
report.vutlan.elements.propertiesValues=hrElementName
report.vutlan.elements.command=--title="Value of '{hrElementName}'" \
 DEF:elemValue={rrd1}:hrElementValue:AVERAGE \
 LINE2:elemValue#0000ff:"Value   " \
 GPRINT:elemValue:AVERAGE:"          Value  \\: %8.2lf %s\\n" \

Restart OpenNMS with command
#

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opennms restart
n the properties of the nodes in the web interface: Home / Reports / Resource Graphs / Choose select elements by ID and

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press Graph Selection. Finally, it should look something like the picture below:

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Details in the official documentation: http://www.opennms.org/wiki/Collecting_SNMP_data_from_tables_with_arbitrary_indexes

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