If you want to stop the exchange of information between NetScaler MAS and the instances in your network, you can unmanage the instances.
To unmanage an instance
1. Navigate to Networks > Instances > NetScaler <Instance Type> (for example, Netscaler VPX). In the list of instances, either right-click an instance and then select Unmanage, or select instance and, from the Action drop-down list, select Unmanage.
The status of the selected instance changes to Out of Service in UI as shown in the following figure below.
The instance is no longer managed by NetScaler MAS, and it no longer exchanges data with NetScaler MAS.