Overview

When there is no data being shown in Monitor > Virtual Circuits and Monitor > Control, this would likely indicate that the Optimizer is not turned, configured, or licensed. This article provides the troubleshooting steps to help fix the issue.

Root Cause

In order for the Virtual Circuits and Control Graphs to work, the Optimizer must be turned on and configured. It isn't possible for traffic to fall into a Virtual Circuit unless the Optimizer is working. Likewise, Control only Graphs shows the usage of Virtual Circuits and policies.

Resolution

Turn on the Optimizer

Turn on the Optimizer and allow about 5-10 minutes for data collection. Check the Graphs again to confirm that the data is being displayed.

Check the status of the database 

If the Graphs are still empty and the Optimizer is on and functioning, then the database may not be working properly.

• Navigate to Monitor > Applications or Subnets and confirm if the Graph is working. If it is not working, then this could indicate a database error. There are a couple of ways to check the status of the database:
  
  
  1. Navigate to the Dashboard >System tab and check the database status (it should be Running).
  2. From the command line, enter the following command: show service database (this should also show Running)
     
     
• If the status is Stopped or Starting, the database can be restarted by entering the command service database restart from the Command Line Interface(CLI).
  
  Note: Allow the database restart about 5 minutes to complete. If the Graphs are still empty, please open a support case for further assistance.