Network Usage reports are available in the Flow Based version of Analytics.
Here is the basic information for configuring an alert.
1) Navigate to the Notifications tab within the application interface.

2) Click the
button to add a new alert.
3) Click on the Alert Type dropdown and select the Network Usage type and appropriate Sub-Type for the alert needed.

4) Fill in appropriate threshold/thresholds for the Alert Type selected (CPU Usage is used as example here), and Click Next button.

5) Select the actions that best suits the method of Alert delivery and configure how long to save a history of this alert. Click Next when all configurations are applied.

6) Review the overall configuration and Click Create to finish the configuration.
