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USING AN SNMP PARAMETER
AS A METER
USING AN SNMP PARAMETER AS A METER CHANNEL SOURCE
“Set by SNMP” has been se
lected in the Source dialog shown above. Clicking the
Browse
button invokes the
to identify the desired source parameter for the selected channel. If
the identified parameter is an integer, the MIB browser automatically populates the correct scale factor in
the
Multiply by
drop-down box. The final calculated result based on a retrieved test value can be displayed
by clicking the
Calculate Value
button. If desired, the scale factor used in the calculation can be manually
adjusted by changing the value in the
Multiply by
box.
In certain cases, a manufacturer may specify a MIB parameter with an integer data type when it is actually a
floating point number. This is to overcome an inherent limitation in the SNMP data formats. Usually in these
cases the text description field will include an indication such as “Type: float”. For this type of parameter,
the
IEEE Float
button can be manually selected to force proper interpretation of the retrieved value. The
Calculate Value
button can be used to verify correct interpretation of the data.
METER GRAPH
This tab is not used in version 5.