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Reporting › Router Context Views › Top Interface Error Rate

Top Interface Error Rate

Use the Top Interface Error Rate view to determine interfaces where transmission problems are occurring. When detected in the inbound direction, errors typically indicate problems with the transmission medium (for example, cable or fiber). Outbound errors indicate problems with the interface hardware. The acceptable rate of errors for any given interface is typically zero (0) errors.

Elevated error rates usually indicate a problem with the transmission medium. For example, the cable, fiber, or interface hardware can cause errors. Each error indicates that the associated packet was dropped during the attempt to transmit or receive it.

Use this view to identify the interfaces with the highest error rates for inbound and outbound traffic on the selected device. Interfaces in the managed item that you selected for drilldown with the highest total error rates during the selected time period are included. Color-coded bar charts indicate severity.

Click the name of an item to see more data from that item.

By default, the Top Interface Error Rate view contains the following information:

Device

Identifies the device whose data is reflected in the view. If an administrator defined an alias for the device item, the alias is displayed. Otherwise, the discovered device name is displayed.

Name

Is the name of the interface.

Average Percent Errors In

Is the average error rate as a percentage of all inbound packets on the interface that had errors.

Average Percent Errors Out

Is the average error rate as a percentage of all outbound packets on the interface that had errors.

More information:

Interface Errors and Discards

Edit Table View Settings

You can change several settings for each view on a dashboard. In addition to providing a new title, you can change settings that are related to severity ratings. To ensure excellent performance in a large reporting environment, you can set an upper limit on the number of results that are returned. You can also select another group context for the data.

Follow these steps:

  1. Click the Options (gear) icon on the view, and select Edit from the menu.

    The view Settings dialog opens.

  2. Change the view Title or Subtitle to reflect the modified view.
  3. Change the settings that are applied to the view if desired. Not all settings are available for all table view types:
    Measurement Settings

    Lets you select whether a total count or an average is displayed in the view.

    Moderate Status Start

    The lowest value for metrics that are displayed as Moderately Degraded in the view. Applies to the color-coding of gauge charts in gauge/table views.

    Default: Depends on the performance metrics reflected in the view. Click Use Defaults to revert to factory defaults.

    Critical Status Start

    The lowest value for metrics that are displayed as Critically Degraded in the view. Applies to the color-coding of gauge charts in gauge/table views.

    Default: Depends on the performance metrics reflected in the view.

    Results Limit (Max Rows)

    Limits the number of table rows that are returned by the associated database query to preserve monitoring-system performance.

    Direction Settings

    Lets you select the direction of data flow—either into or out of the interface.

    Affected % of reporting period

    Where available, sets the percentage of the reporting interval to which thresholds are applied.

    Default: 25%.

  4. Click to expand nodes in the Context Settings area.
  5. Locate the group whose data you want to see in the view and select it.
  6. Select the scope of your changes from the Apply Changes drop-down. Select one of the following options:

    Note: The availability of these options depends on your user account role rights.

  7. Click Save.

    The view is refreshed to reflect your updates.