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Managing Interfaces › Interface Utilization Calculation › Override Speed In and Speed Out Values on Interfaces

Override Speed In and Speed Out Values on Interfaces

By default, utilization is calculated using the Speed In and Speed Out values that the device, which the interface is a component of, reports. However, you can override these speed values. Reporting on interface utilization can then be more accurate.

Follow these steps:

  1. Click Monitored Devices from the Monitored Inventory menu for a Data Aggregator data source.

    The Tree View tab displays.

  2. Select Device by Collection or Device by Monitoring Profile from the drop-down list. Select the device that you want to override the Speed In and Speed Out values for an interface on and select the appropriate interface metric family on the Polled Metric Families tab.

    The interface components that are monitored on the device appear in the Interface Components table.

  3. Select the interface component that you want to override the Speed In and Speed Out values for and click Edit.

    The Edit Interface dialog appears. The dialog displays the default discovered Speed In and Speed Out values.

  4. Enter Speed In and Speed Out values in bits per second and click Save.

    Note: You can remove overrides by clicking Clear and clicking Save. Going forward, bandwidth utilization charts in CA Performance Center for the interface display utilization using the speed values that the device reports. An event is generated on the interface, indicating that the speed overrides have been removed. The event can be seen in the Events Display dashboard in CA Performance Center.

    The dialog closes. The overridden Speed In and Speed Out values on the interface appear in the Interface Components table with asterisks.

    An event is generated on the interface, indicating that the Speed In and Speed Out values have been overridden on an interface. The event can be seen in the Events Display dashboard in CA Performance Center.

    Going forward, bandwidth utilization charts in CA Performance Center for the interface display utilization using the speed values that you specified.