Custom SNMP Sensors: OID Entry

Note: In order to set up custom OIDs you must know the OID code of the value you want to monitor. If you do not know the OID value already you may need to find it out using an SNMP Walker.

After entering the device’s IP address in the Add Sensor Wizard clicking the Next button will bring up the SNMP Custom Sensor window.

First you have to enter an OID. OID (Object IDentifiers) are number codes used by SNMP to identify specific readings. They usually look like this: “1.2.3.4.5.6.7.8”. Please remove any leading “.”.

In order to test the OID for validity you have to click on the Test this OID button to continue. If the OID is valid, the value on the right-hand side will change from <click “Test this OID”> to a numerical value.

You can then define the type of measuring you want to do. Your options are:

·      Gauge (absolute value)

·      Delta (difference per period)

Check the Float value box if the returned value is a float (with a decimal point).

The Scale function is a floating point value through which the value delivered from the SNMP sensor is either divided or multiplied. You can select which one of the two to perform by clicking on the appropriate radio button to the right.

The Indicator field can be used to enter information that will be shown in the legend, as the name for the information of the sensor.

In the Unit field you can enter any string that shall be used as units when displaying the graphs.

Once you have made your selections, click on the Next button. This will bring up the Additional Settings window.