This is the full text rate limiting example that accompanies my Catalyst rate limiting post. This example was derived on a Cisco Catalyst 2960 and should be ready to copy and paste directly to your device.
mls qos
ip access-list extended ACL_SLAP
permit ip any any
class-map match-all CLASS_SLAP
match access-group name ACL_SLAP
policy-map POLICY_SLAP
class CLASS_SLAP
police 8000000 100000 exceed-action drop
interface GigabitEthernet0/2
service-policy input POLICY_SLAP