Track number of discarded packets and packet errors within a moving time frame. See periods where an interface is flooded with traffic or receiving, untimely, malformed, unexpected, or out of sequence packets and more.

Configure this 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 or when errors for inbound or outbound interface utilization exceeds 100 errors per minute for more than 20 minutes.

Configure an interface errors and discards threshold:

  • Name. Used in the Threshold library and the title on the Alert Center Dashboard.
  • Notification Policy. (Optional) Select the notification policy to apply to this threshold. The policy initiates notifications when an item is outside the configured threshold limits.
  • Threshold Check Interval. Enter a time interval for Alert Center to check the WhatsUp Gold database for items that are out of the threshold limits.

    Automatically resolve items no longer out of threshold. Select this option if you want Alert Center to automatically resolve items when they return to the value within the threshold limit.

注： 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.

Add Condition Rules (Choose Mode)

  • Configure threshold for...either of the following:
    • Discarded packets and error packets.
    • Discarded packets.
    • Error packets.

Add Condition Rule (Mode Specific):

  • Discarded packets and error packets combined mode
    • Choose Direction.
    • Choose a duration.
  • Discarded packets mode
    • Choose direction and value
    • Choose a duration and value
  • Error packets
    • Choose direction and value
    • Choose a duration and value

选择应用的设备

  • 应用到所有设备。默认情况下，阈值会监控所有适用的主机。

    排除设备。选择以构建或应用排除列表。

  • 单击将此阈值应用于特定设备以选择应用阈值的主机。
    注： 配置阈值检查间隔时间时，请设置成比趋势相关阈值（例如使用率）采样间隔时间更长。配置状况检查临界值时，请将其配置成与取样间隔时间相同（或类似）。