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

適用されたデバイスの選択

  • [Apply to All Devices (すべてのデバイスに適用)]。デフォルトでは、しきい値は適用可能なすべてのホストを監視します。

    [デバイスを除外]。除外リストを作成または適用する場合に選択します。

  • [このしきい値を特定のデバイスに適用] をクリックして、しきい値を適用するホストを選択します。
    注: 使用率などの傾向に関連するしきい値には、しきい値チェック間隔にサンプリング間隔よりも長い時間を設定してください。正常性チェックのしきい値を設定する場合は、サンプリング間隔と同様の時間に設定してください。