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SNMP Collections

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An SNMP collection maps to a CIM class and the elements of a collection map to the properties of a CIM class. All generated CIM class definitions must be derived from the SnmpObjectType class.

Note

For more information about installing the provider, see Setting up the WMI SNMP Environment.

 

The following class definitions parent all generated class definitions:

[abstract]
class SnmpMacro
{
};

[abstract]
class SnmpObjectType:SnmpMacro
{
};

Remarks

The following rules apply when mapping SNMP collections to CIM classes. Unless otherwise specified, these rules apply to both scalar and table collections:

  • The mapping process generates CIM class names by concatenating "SNMP_", the MIB module identity name, "_", and the collection's object descriptor.

    For example: system translates to SNMP_RFC1213_MIB_system, while ifTable translates to SNMP_RFC1213_MIB_ifTable.

  • In all cases, hyphens (-) in SNMP MIB identifiers map to underscores (_) in CIM class names.

  • Naming conflicts can occur due to CIM name case-insensitivity. If a naming conflict occurs, the provider chooses one of the conflicting group definitions and ignores the remaining definitions.

  • The identity name of the MIB module that contains the collection maps to the CIM class qualifier Module_Name.

  • The object identifier of the fabricated collection maps to the CIM class qualifier Group_Objectid.

  • The MIB module imports list (obtained from the MODULE-IDENTITY macro definition) maps to the CIM class qualifier module_imports. This qualifier contains a comma-separated list of module names.