Users Guide

Variable Binding Definitions | Alarms, Events, and Automation
348 OMNM 6.5.3 User Guide
Variable Binding Definition Editor
This editor lets you modify variable binding definitions
It has the following fields:
Name — A text identifier for the variable binding.
Variable Binding OID — Unique identifier for the variable binding.
MIB Name — The MIB with which this variable binding is associated.
Data Type — The data type, as defined in the MIB.
Correlation Type — The way that variable bindings based on this definition should be correlated.
You might need to change this value if certain types of events and/or alarms do not correlate
correctly for your system-for example the clearing alarm does not clear the initial raising alarm-then
you can edit one or more of the variable binding on the Message Template tab of the event
definition. The possible values for this attribute are:
By Value , where all bindings have both an OID
and a value, the value is used to correlate (this is default), and
By Index , e.g. OID of
1.4.5.3.4389.334 where no binding exists with this exact OID but 1.3.5.3 does exist and is
configured this way will use the remainder of the string (4389.334 in this example) to correlate.
The correlation value that is extracted from the binding (whether By Index or
By Value ) is only
relevant if this particular binding is configured as a key binding within the event definition ( see
Using Extended Event Definitions on page 341 for an explanation of key bindings) and this is
used for event to alarm correlation, not other forms of correlation (see
Correlations on page 338 for
an explanation of the different forms of correlation).
Forced Conversion — Indicates whether or not forced conversion should be applied to the data
within the variable bindings that are based on this definition. This is false by default. If this is set to
false, then it is possible that variable bindings based on this definition will have data that does not
conform to the data type it is supposed to have based on what is stated in the MIB. For example,
the MIB might say that a certain variable binding is supposed to be an integer, but there could