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    Configuring SNMP Health Monitoring (NSM Procedure)

    You can use SNMP health monitoring to minimize user configuration requirements. Health monitoring is a notification system that extends the RMON alarm infrastructure to provide predefined monitoring for a selected set of object instances (for file system usage, CPU usage, and memory usage) and includes support for unknown or dynamic object instances (such as JUNOS Software processes).

    To configure health monitoring for SNMP in NSM:

    1. In the navigation tree, select Device Manager > Devices.
    2. In the Devices list, double-click the device to select it.
    3. Click the Configuration tab.
    4. In the configuration tree, expand SNMP.
    5. Select Health Monitor.
    6. Select the Enable Feature check box.
    7. Enter the parameters as specified in Table 1.
    8. Click one:
      • OK—To save the changes.
      • Cancel—To cancel the modifications.
      • Apply—To apply the SNMP settings.

    Note: After you make changes to a device configuration, you must push that updated device configuration to the physical security device for those changes to take effect. You can update multiple devices at one time. See the Updating Devices section in the Network and Security Manager Administration Guide for more information.

    Table 1: Configuring Health Monitor Fields

    Option

    Function

    Your Action

    Comment

    Specifies the comment for the health monitoring configuration.

    Enter a comment.

    Interval

    Specifies the interval. The interval represents the period of time, in seconds, over which the object instance is sampled. The sample value is then compared with the rising and falling threshold values.

    Specify the interval between samples, in seconds. You can enter a value from 1 through 2147483647. The default is 300.

    Rising Threshold

    Specifies the upper threshold as a percentage of the maximum possible value for the monitored variable. When the current sampled value is greater than or equal to this threshold and the value at the last sampling interval is less than this threshold, a single event is generated. A single event is also generated if the first sample after this entry becomes valid is greater than or equal to this threshold. After a rising event is generated, another rising event is not generated until the sampled value falls below this threshold and reaches the falling threshold.

    Enter the rising threshold value. You can enter a value from 1 through 100. The default value is 90.

    Falling Threshold

    Specifies the lower threshold as a percentage of the maximum possible value for the monitored variable. When the current sampled value is less than or equal to this threshold and the value at the last sampling interval is greater than this threshold, a single event is generated. A single event is also generated if the first sample after this entry becomes valid is less than or equal to this threshold. After a falling event is generated, another falling event is not generated until the sampled value rises above this threshold and reaches the rising threshold.

    Enter the falling threshold value. You can enter a value from 0 through 100. The default value is 80.

    Idp

    Specifies that the enterprise-specific IDP MIB extends SNMP support to the key monitoring and threshold-crossing traps.

    1. Expand the Health Monitor tree and select Idp.
    2. Click the New button or select an interface and click the Edit button.
    3. Enter the comment, interval, and the rising and falling threshold values.

    Published: 2013-01-06