Restrictions for Encrypted Traffic Analytics
ETA is supported only on access ports and wireless VLAN on SDA deployment. It is not supported on management, trunk, port-channel, SVI, and loopback interfaces.
ETA and Cisco Application Visibility and Control (AVC) features can not be applied on the same interface.
An interface being used as a Flexible NetFlow monitor with ETA enabled, cannot be used to monitor Flexible NetFlow alone on a second target. In such a scenario a separate Flexible NetFlow monitor should be created to monitor the second target.