Here is the procedure to classify the iTunes traffic
- Turn on the traffic discovery from the Setup tab in the GUI and you should see the Apple-iTunes class be created once enough flows have been seen by the packetshaper
- Turn off the traffic discovery
If you do not want to turn on traffic discovery, you can create the class manually with the service called "Apple i-Tunes"
Once you have the class created or auto-discovered, you can apply a policy to it