To poll attributes from multiple MIB tables, we need an attribute group per MIB table containing these attributes. The index tag list provides a mechanism to relate two attribute groups (or MIB tables) with different indexes. The groups are related such that one item (row) of one table is linked to a corresponding row in a second table.
References the primary Attribute group (that is, the group that defines an index attribute with the ObjectID type). The value of this element must equal the 'UseIndex' tag of the attribute group for the primary group.
Can be updated: Yes
Possible values: The ‘UseIndex’ tag of the attribute group corresponding to the primary attribute group.
Effect of updating: Changes indexing
When does the update take effect: After component rediscovery
Required actions for updates to take effect: Update the metric family or change the vendor certification priority.
Defines how to relate rows of the primary group (or MIB table) to rows in the secondary group. This element relates the rows by specifying attributes of both groups that must match.
References the secondary group (or MIB table). The value of this element must equal the 'UseIndex' tag of the secondary attribute group that you are trying to relate with the primary one.
Can be updated: Yes
Possible values: The ‘UseIndex’ tag of the secondary attribute group.
Effect of updating: Changes indexing
When does the update take effect: After component rediscovery
Required actions for updates to take effect: Update the metric family or change the vendor certification priority.
Specifies an MVEL expression containing attributes of the primary attribute group or an attribute group corresponding to any of the previously defined IndexTag. The calculated value is matched up with the 'ThisTagKeyExpression'. If there is a match, the rows of both attribute groups (or MIB tables) are linked. Then, these attributes can be used together in an 'Expression' backing a destAttr (or Metric).
Can be updated: Yes
Possible values: A valid MVEL expression
Effect of updating: Changes indexing
When does the update take effect: After component rediscovery
Required actions for updates to take effect: Update the metric family or change the vendor certification priority.
Specifies an MVEL expression containing attributes of the secondary attribute group. The calculated value is matched up with the 'PrimaryKeyExpression'. If there is a match, the rows of both groups (or MIB tables) are linked. Then, these attributes can be used together in an 'Expression' backing a destAttr (or Metric).
Can be updated: Yes
Possible values: A valid MVEL expression
Effect of updating: Changes indexing
When does the update take effect: After component rediscovery
Required actions for updates to take effect: Update the metric family or change the vendor certification priority.
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