How to configure thresholds
In Apex, the default thresholds are pre-configured, so additional setup is rarely needed. If necessary, you can change them to better reflect your network conditions.
To configure a threshold:
1. In the web interface, click Configuration > Thresholds.
2. Select one by clicking a table row.
The editing pane appears.
3. Edit one or more of the following choices:
Threshold Type
Threshold Type sets whether the threshold is crossed above or below its marginal and critical values.
Marginal Value
Marginal Value determines if a statistic is slightly out-of-range for your network. Based on Threshold Type, 'marginal' is either above or below this value, and widgets display a yellow color if a 'Marginal Value' is crossed.
Performance based thresholds use actual values, while baseline thresholds use percentage values.
Critical Value
Critical Value determines if a statistic is greatly out-of-range for your network. Based on Threshold Type, 'critical' is either above or below this value, and widgets display a red color if a 'Critical Value' is crossed.
Performance based thresholds use actual values, while baseline thresholds use percentage values.
4. Click the accept icon .
 
You successfully configured a threshold to better reflect your network conditions.