On srTCM vs trTCM (Single Rate/Dual Rate Traffic Color Marking -- Green/Yellow/Red)

A Single Rate Three Color Marker (RFC, 1999)
http://www.rfc-base.org/rfc-2697.html

A Two Rate Three Color Marker (RFC, 1999)
http://www.rfc-base.org/rfc-2698.html

Understanding the “shape peak” command
http://blog.ine.com/2008/08/26/understanding-the-shape-peak-command/

The Meaning of Bc with Traffic Policing
http://blog.ine.com/2009/12/12/the-meaning-of-bc-with-traffic-policing/

Understanding Single-Rate and Dual-Rate Traffic Policing
http://blog.ine.com/2011/05/22/understanding-single-rate-and-dual-rate-traffic-policing/