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Discovering Your Network › Device Type Modifications

Device Type Modifications

Based on the device service information, Data Aggregator can automatically classify manageable devices as Router, Switch, and Server types. If a manageable device cannot be identified as a Router, a Switch or a Server, it is classified as the 'Device' device type.

If the types of some SNMP manageable devices were not identified as you expected, you can override the device types. Map the device sysObjectID MIB value explicitly to the correct device type in the $KARAF_HOME/custom/devicetypes/DeviceTypes.xml file that is shipped with Data Aggregator.

Note: You cannot add new device types to the DeviceTypes.xml file.

The DeviceTypes.xml file contains a template to map the sysObjectID to appropriate device types. By default, the file does not contain any sysObjectID-to-type mapping entry. If you want to classify a device type with a particular sysObjectID, you can modify the template to add the sysObjectID-to-type entries into the file. Before you add a sysObjectID, uncomment the section where you are adding the sysObjectID.

Note: Updates to the DeviceTypes.xml file can take up to one minute to apply.

A device can be classified into multiple device types. However, the type, Device, is mutually exclusive to other device types. For example, if you add a sysObjectID to one or more of the Router, Switch, or Server device types and you also add that sysObjectID to the 'Device' device type, the 'Device' device type is dropped and is not recognized.

Note: If you upgrade Data Aggregator, the DeviceTypes.xml file is not preserved. However, the configurations that were added prior to the upgrade are preserved.

Example: Map a Device sysObjectID to Another Device Type

Follow these steps:

  1. Open the $KARAF_HOME/custom/devicetypes/DeviceTypes.xml file.
  2. Enter the following information: 
    <DeviceType>
    <Routers>
     <sysObjectID>1.3.6.5.1.34</sysObjectID>
    </Routers>

    <Switches>
      <sysObjectID>1.3.6.5.5.3</sysObjectID>
      <sysObjectID>1.3.6.5.1.34</sysObjectID>
     </Switches>

    <Servers>
      <sysObjectID>1.3.6.5.567.1</sysObjectID>
    </Servers>

    <Device>
      <sysObjectID>1.3.6.5.49.1</sysObjectID>
    </Device>
<DeviceType>
  3. Run discovery on the discovery profile that contains the devices.

    Note: The changes that you make to the DeviceTypes.xml file do not take effect on existing devices until you rerun discovery.

    When discovery is run, the following results occur: