This document describes mechanisms which enable the Layer Two Tunneling Protocol (L2TP) to negotiate desired Per Hop Behavior (PHB) code for the L2TP control connection@ as well as individual sessions within an L2TP tunnel. L2TP provides a standard method for tunneling PPP packets. The current specification provides no provisions for supporting Differentiated Services (diffserv) over the L2TP control connection or subsequent data sessions. As a result@ no standard mechanism currently exists within L2TP to provide L2TP protocol negotiations for service discrimination.