In which step of CoPP configuration are the policing data rates configured?

The correct answer is found in the policy map configuration step of Class-Based Policing (CoPP) setup. In this phase, you define the actual traffic handling parameters, including the data rates for policing. Specifically, the policy map is used to bind together the class maps, and within it, you can specify the rate at which the traffic will be allowed or dropped. This configuration is crucial for ensuring that the router can manage its resources effectively and protect itself from potential overloads caused by excessive traffic.

The access list configuration focuses on identifying which packets are to be classified or filtered, rather than setting any policing rates. Class maps are valuable for categorizing the traffic into different classes but do not involve the actual rate configuration. Lastly, the service policy configuration encompasses the application of a policy map to an interface, but the specific details of traffic policing are handled within the policy map itself. Thus, the nature of the policy map as containing the rate configurations makes it the correct step in the CoPP configuration process.