| Description | The method of sampling the selected variable.
An 'absoluteValue' is simply the present value of the
object.
A 'deltaValue' is the present value minus the previous
value, which was sampled expExpressionDeltaInterval
seconds ago. This is intended primarily for use with
SNMP counters, which are meaningless as an 'absoluteValue',
but may be used with any integer-based value.
When an expression contains both delta and absolute values
the absolute values are obtained at the end of the delta
period. |