As I set up my traffic configuration I noticed that the classes, as listed in the traffic tree, are not ordered in the order I created them.
Why is that?
The traffic tree lists classes in order of decreasing specificity.
What this means is that a class for a specific IP address (host) will be listed before a class for a network. A class for graphics (*.gif) files will be listed before web (http) because .gif is more specific than http.
The computation can be very complicated, but the basic idea of decreasing specificity is the same. The most specific classes are listed first.
Remember that a child class will always stay with its parent, but within the parent, the same rules apply.