单项选择题
A.profile config-info auto-configure ppp
B.profile config-info auto-configure any
C.profile ppp config-info auto-configure pppoe
D.profile pppoe config-info auto-configure pppoe
多项选择题 What are the two stages of PPP over Ethernet?（）
单项选择题 The ERX Edge Router is configured for PPP over Ethernet without using VLAN tagging. How many PPP over Ethernet major interfaces can be configured per port?（）
单项选择题 Which process occurs first during the Ethernet Discovery Stage process for a PPPoE service offering?（）