Figure 18: Example Of Pppoe Over S-Vlan Stacking Configuration; Host1(Config-If)#Pppoe Subinterface Fastethernet 4/1.1.1; Specify Ppp As The Encapsulation Method On The Interface; Assign An Ip Address And Mask - Juniper JUNOSE 11.1.X - LINK LAYER CONFIGURATION 4-7-2010 Configuration Manual
For e series broadband services routers - link layer configuration