Prerequisites

Before beginning your SNMP configuration, set up your instrumentation strategy, create gateway management profiles, and set up discovery profiles.

Create gateway management profiles

The gateway management profile helps in managing the discovery of resources. For more information, see Create Gateway Management Profiles.

Set up discovery profiles

An administrator can create discovery profiles based on the devices to discover. The Discovery and Deployment page displays the added discovery profile. For more information, see Discovery.

Create SNMP monitor with collector type SNMP

Creating SNMP monitors helps administrators to initiate monitoring and set thresholds to receive alerts.

Enter the following parameters on the CREATE A MONITOR page:

Create an SNMP monitor

ParameterDescription
Monitor ScopePartner- or client-level scope of monitor.
Adaptor TypeMonitor type.
Application TypeResource type.
NameUnique monitor name.
DescriptionMonitor description.
Is this monitor for a component that has multiple instances?Select Yes for Tabular OID or No for Scalar OID

Component properties

Component Properties
ParameterDescription
ModeMethod to get the value or name of the component. Select one of the following options:
  • Get Value: Unique name of the component.
  • Get Index: OID Index value.
  • Lookup Index: OID index and matches with the index of the Lookup OID.
  • Lookup Value: OID Value and matches the index of the Lookup OID.
  • OIDComponent OID.
    Lookup OIDObject OID from another table with the same MIB as the component OID. The field is active only if you select Lookup Index or Lookup Value.
    FormatOID data type in the MIB.

    Additional properties

    ParameterDescription
    NameName of the OID
    OID TypeSelect one of the following options:
  • Scalar OID
  • Tabular OID
  • OIDComponent OID to add the property.
    Format ValueMethod to receive the monitoring output. Select Enumerated Map.
    Provide an enumerated mapKey and value pair for each OID.
    UnitMethod to evaluate the monitoring output. Skip Unit selection if Enumerated Map is already selected.

    Add metric

    Add Metric
    ParameterDescription
    NameName or label to define the metric displayed on the graphs. For example, hr.storage.utilization.
    Display NameName or label to define the metric displayed on the dashboard.
    DescriptionReason for using the metric.

    Value of the metric

    ParameterDescription
    Provide SNMP OID-based inputs.
    NameOID object name defined in the MIB.
    OIDOID defined in the MIB. The scalar OIDs need to end with .0.
    OID TypeScalar or tabular OID
    Data TypeOID base syntax defined in the MIB. Select the data type according to the metric.
    Formula
  • Delta: Provides the difference between the current poll value and the previous poll value.
  • Rate: Provides the quotient of the difference between Current Poll Value and Previous Poll Value with Current Poll Time and Previous Poll Time. Arithmetically, Rate = (Current Poll Value)-(Previous Poll Value)/(Current Poll Time)-(Previous Poll Time). Rate returns the value in per second format. For example, requests per second, bytes per second, errors per sec, and per sec.
  • Poll FrequencyFrequency for monitoring the devices. Select one of the following:
  • User-Defined: The chosen OID requires frequent monitoring.
  • Less Frequent: The chosen OID is monitored seldom. The OIDs are polled every eight hours.
  • Does the metric need additional inputs from user?
    NameVariable name used while calculating the metric value.
    DescriptionVariable information.
    Default ValuesVariable value. For example, if you want to monitor the network interface bandwidth for WAN links, provide ISP speed value in Mbps, Kbps, or bps.
    Calculate the value of the metric
    Metric Value
  • Value of the SNMP OID: Selected by default when only a single SNMP OID-based input entry is available.
  • Using the inputs provided above, derive the value of the metric using an expression: Enter the Java-based mathematical expression to calculate the OID output. Example: (used/(used+free))*100, where `used` and `free` are SNMP OID-based names.
  • Use this option to:

    • Get a single OID value as a metric result for multiple OID inputs.
    • Perform more mathematical calculations for multiple OID results.

    Format metric value

    Format Metric Value
    ParameterDescription
    Format metric value usingMethod to receive the monitoring output. Select Enumerated Map.
    Provide an enumerated mapKey and value pair for each OID. For example, the enumeration values for device health status OIDs are:1 - up
  • 2 - down
  • 3 - testing
  • 4 - downgrade
  • 5 - warning
  • Use formatted value in
  • Alerts: To receive alerts.
  • Graph: To generate metric graphs.
  • Units
  • Unit according to the metric value. For example, for performance OIDs, select Percentage(%). Skip Units selection if an enumerated map is already selected.
  • GraphSelect Yes to populate graphs for a metric.

    Set alert conditions

    Set Alert Conditions
    ParameterDescription
    Warning severityWarning alert is created when the metric matches the operator and exceeds the warning threshold value.
    Critical severityCritical alert is created when the metric matches the operator and exceeds the critical threshold value.
    Alert SubjectAlert subject displayed for a warning or critical alert on the alert browser.
    Alert ContentAlert description displayed on the alert details page. The actual values replace the alert subject displayed on the alert browser.
    GraphSelect Yes to populate graphs for a metric.

    Data Collection Rules

    Data Collection Rules
    ParameterDescription
    All instances of this componentMonitors all component OIDs (Default selection).
    Automatically select instances based on the below-mentioned rulesAdd Value for the selected Property and Operator defined in the Additional Properties section to filter the monitoring components.
    Manually select instances on the device based on the following propertiesSelect the components added in the Additional Properties section. You can view and choose the manually selected components while assigning templates to a resource.