To configure QoS for rate policing on an interface, you apply a policy map top the interface.
device# configure terminal
device(config)# policy-map policy_1
device(config-policymap)# class default
device(config-policymap-class)# police cir 40000
device(config-policymap-class)# end
device# show policy-map detail policy_1 Policy-Map P1 Class default Police cir 40000 Bound To:None
device# copy running-config startup-config
device# configure terminal device(config)# policy-map policy_1 device(config-policymap)# class default device(config-policymap-class)# police cir 40000 device(config-policymap-class)# end device# show policy-map detail policy_1 device# copy running-config startup-config