PPP Per Session Queueing and Shaping Using RADIUS

Cisco

http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/bbdsl/configuration/xe-3s/asr1000/bba-xe-3s-asr1000-book/bba-ppoe-ses-q-rad-xe.html#GUID-4F310583-68C0-4B5F-BDE6-BBE01C06D2AE