It is very important to understand that with SCCM 2012 , Distribution Points have the capability to Throttle and Schedule the Network Traffic coming towards it . However still , the Network data flow between DP and clients cannot be managed using Throttling and Scheduling feature of Distribution Point . For this various ways you may use are :
Place a Distribution point at a location which is closest to other branches where you cannot place a DP . Make sure that there is a direct link between these locations .
Place as many DP’s as you can .