The Top Deviations from Normal views compare actual values from the selected time frame to a calculated "normal" value. These views display values that deviated the most from their normal value.
What is considered to be "normal" is based on the calculated baseline average. The way the baseline is calculated varies by the registered data source.
The Top Deviations from Normal - CBQoS Class Map view can help you assess CBQoS policies that are changing. Changes in CBQoS class maps can indicate areas in your network where interfaces drop deferred traffic. Such drops can lead to significant performance issues for the following applications that are sensitive to loss:
The table displays the pre-policy or post-policy usage for class maps in the selected group with the highest deviation from the normal value. This view focuses on the interfaces where policy usage experiences the most rapid change. Edit the view to select the type of data shown: either Pre-Policy Utilization or Post-Policy Utilization.
Is the average value of the metric for the selected time period.
Is the calculated average baseline value. "Normal" is based on the calculated baseline average.
Is the value of the metric calculated as a percentage above or below the normal value.
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