SNMP Polling

The SNMP Polling Monitor polls the SNMP agent and retrieves the values of a given OID (object identifier), or the values of an SNMP table to know the status of the monitored device and be informed when a problem occurs.

Once the SNMP Polling Monitor is properly configured, Monitoring Studio X provides the execution time, the result, the status, and the value of the SNMP polling.

The result can also be analyzed through a wide range of tools (Dynamic Object, Numeric Value Extraction, Text Pre-Processing, String Search, and Value Map).

Refer to the table below to know how to configure the SNMP Polling Monitor:

Property	Description
OID	OID (object identifier) to poll, as provided by the Management Information Base (MIB).
Display Name	Name to identify the SNMP Monitor instance in TrueSight Operations Management.
Internal ID	ID to be used to store the SNMP Monitor configuration in the PATROL Agent configuration. This Internal ID is automatically generated based on the Display Name provided but can be edited if needed.
Collect Schedule	How often new data is collected. A new collect can be performed from once every second, to once in a day. By default, the collect schedule is set to 2 minutes.
Poll a Single OID or an SNMP Table?	Indicate whether Monitoring Studio X will poll a SINGLE OID or an SNMP TABLE.
Column Numbers	(Only when polling an SNMP Table) Column numbers or range of columns in the SNMP table to be polled. Column numbers and range of columns can be combined and must be delimited by commas (Example: ID,1,9-15,20 or ID,1,[9-15],20). Leave the field blank to retrieve values from the entire row. Enter ID to retrieve the row identifier.
OID Content Type	(Only when polling a single OID) Type of the OID Content (STRING or NUMBER).
Numeric Content Options	(Only when polling a single OID of type Number) Indicate whether the Monitored Value is a raw value or a delta. If you select one of the Delta options, you will have to indicate whether negative values should be discarded. You may also select the type of a rescaling to perform.

Once you are done with the configuration, you can run a Dry Run to simulate the execution of this Monitor on a specific host and therefore verify that the output is conform to the expected result.

Finally, you can define where alerts are reported, the threshold alert values, and the alert severity levels for the Monitor:

• Indicate if you want Monitoring Studio X to report Monitor Errors in The Monitor's Status Parameter or The Template's Collection Error Count Parameter (default).

• Then, for each parameter, define up to three alarm ranges (Alarm #1, Alarm #2 and Out-of-range) each with a minimum and a maximum value:

  • Use the Alarm #1 and Alarm #2 options to define the range of parameter values that triggers warnings and alarms.
  • Use the Out-of-range border conditions to be informed when the collected values are outside the norm (less than or greater than the defined range limits).

Refer to the Configuring Alerts for details and to Studio SNMP Polling for more information about the parameters available and the thresholds set by default.