You define a class clause for each class of traffic.
The syntax to define the remaining classes in the IPQoS configuration is as follows:
class { name class-name next_action next-action-name }
To enable statistics collection on a particular class, you must first enable global statistics in the ipgpc.classify action statement. For more information, refer to action Statement.
Use the enable_stats TRUE statement whenever you want to enable statistics collection for a class. If you do not need to gather statistics for a class, you can specify enable_stats FALSE. Alternatively, you can eliminate the enable_stats statement.
Traffic on an IPQoS-enabled network that you do not specifically define is relegated to the default class.