Question: In a DOCSIS IP-CAN, which entity interacts with the Policy Server to enforce policy and charging rules by managing DOCSIS service flows?
Option 1: User Equipment (UE) via Cable Modem
Option 2: Cable Modem Termination System (CMTS)
Option 3: Broadband Remote Access Server (BRAS)
Option 4: Policy and Charging Rules Function (PCRF)
Explanation: In a DOCSIS IP-CAN, the CMTS acts as the PCEF equivalent, communicating with the Policy Server to manage DOCSIS service flows for enforcing policy and charging rules over the pkt-mm-2 interface.