If you followed my recent Cisco Catalyst rate-limiting post, you already know that policing traffic on a Cisco Catalyst switch requires a bit of thought. Mainly, you have to do a bit of calculating to determine the best bucket size for your application. The good news is that achieving the same affect on a Cisco IOS-based router is much easier.
You can enable shaping on an interface (or sub-interface) in three easy steps. Just remember: class, policy, interface.
http://slaptijack.com/networking/easy-traffic-shaping-in-cisco-ios/
