Configuring an interface errors and discards threshold

To configure an interface utilization discard and error threshold:

1. From the WhatsUp Gold web interface, go to Alert Center > Threshold Library. The Alert Center Threshold Library dialog appears.
2. Click New. The Select Threshold Type dialog appears.
3. Select Performance Interface Errors and Discards, then click OK. The New/Edit Interface Error and Discard Threshold dialog appears.

   

4. Specify or select the appropriate information in the dialog box:
   • Name. Specify a name for the threshold. This name helps you identify the threshold in the Threshold library and displays as the report title on the Alert Center Home page.
   • Threshold. Select and enter the threshold criteria variables and values. You can choose to create a threshold based on discards, errors, or a combination of the two.
     The default threshold is configured to alert when inbound or outbound interface utilization exceeds 100 discards per minute for more than 20 minutes.
     - and / or -
     when errors for inbound or outbound interface utilization exceeds 100 errors per minute for more than 20 minutes.

   Note: If you select both error and discard thresholds, each error and discard are reported as separate items (rows) in the dashboard report.

   • Devices to Monitor. Click Select to choose the devices to which the threshold applies. By default, the threshold monitors all devices where the applicable monitor is enabled.
   • Notification. Select the notification policy to apply to this threshold. This policy begins sending notifications when an item is outside the configured threshold limits. If you do not see an appropriate threshold policy, or if the list is empty, click browse (...) to open the Notification Policy dialog and configure a new policy.

   Note: Notification policies are optional for most thresholds. If you do not select a notification policy, no notifications are generated for the threshold, but a dashboard report listing the out of threshold items still appears on the Alert Center Home page.

   • Threshold check. Enter a value for the threshold check interval, or the interval at which the Alert Center checks the WhatsUp Gold database to see if there are items that are outside the threshold parameters. The default threshold check is 10 minutes.
   • Select Automatically resolve items no longer out of threshold to have Alert Center automatically resolve items when they go back inside the parameters of the threshold.

   Note: Configure the threshold check interval for a longer time than the sampling interval for thresholds relating to trends, such as percent utilization. Configure it for a time the same as (or similar to) the sampling interval when configuring a threshold for a health check.
   
   Avoid setting the threshold check interval to a very short time as this can degrade system performance. In general, setting the threshold check interval to less than five minutes is inadvisable.

5. Click OK to save the threshold settings.

See Also Configuring performance thresholds Configuring performance thresholds Configuring a CPU utilization threshold Configuring a custom performance monitor threshold Configuring a disk utilization threshold Configuring an interface utilization threshold Configuring a memory utilization threshold Configuring a ping availability threshold Configuring a ping response time threshold