A.RAS B.DSLAM C.ATMswitch D.RADIUSserver
A.The ERX router sends an Active Discovery Off ermessage. B.The ERX router sendsan Active Discovery Initiation message. C.The customer device sends an Active Discovery Offer message. D.The customer device sends an Active Discovery Initiation message.
A.PPPoE Active Discovery Offer B.PPPoE Active Discovery Initiation C.PPPoE Active Session Confirmation D.PPPoE Active Session Acknowledgment