Use the DiffServ policy commands to specify traffic conditioning actions, such as policing and marking, to apply to traffic classes
Use the policy commands to associate a traffic class that you define by using the class command set with one or more QoS policy attributes. Assign the class/policy association to an interface to form a service. Specify the policy name when you create the policy.
Each traffic class defines a particular treatment for packets that match the class definition. You can associate multiple traffic classes with a single policy. When a packet satisfies the conditions of more than one class, preference is based on the order in which you add the classes to the policy. The first class you add has the highest precedence.
This set of commands consists of policy creation/deletion, class addition/removal, and individual policy attributes.
The CLI command root is policy-map.