Operate and maintain
Documents under this category provide functional descriptions and procedures for configuring, operating, and maintaining the MAG-c.
- Control Plane Function Guide
  This guide describes the control plane function (CPF) for control and user plane separation (CUPS) solutions. The CPF is based on the packet forwarding control protocol (PFCP) interface as defined in 3GPP TS 29.244 for mobile 4G CUPS and 5G.
  - Getting started
    Find general information about this guide.
  - MAG-c configuration quick start
    The quick start steps configure the main components required to prepare the MAG-c for subscriber management or Service Based Interface (SBI) communication.
  - Session management
    Get a general overview of the session functionality and the address assignment protocols, and details on the IPoE and PPPoE fixed access and the fixed wireless access (FWA) session types.
    - PFCP session
    - General session functionality
      Get a high-level overview of the PFCP protocol and general session related functionality including grouping sessions for a subscriber, QoS, service selection, session state, and lawful intercept.
    - MAG-c lawful intercept
      The lawful intercept (LI) solution is implemented on the MAG-c and on the User Plane (UP). The MAG-c and the UP share a private key to allow decryption of LI PFCP IEs. This topic describes the LI implementation, the content of LI notifications, and how to configure LI on the MAG-c.
    - Fixed access sessions
      Learn about the key identifiers for fixed access sessions, IBCP tunnels, BNG-UP selection, limits on the number of sessions, session lockout, and the PPPoE and IPoE setup flows.
    - Fixed Wireless Access sessions
      FWA sessions obtain network connectivity through a mobile RAN such as (e-)UTRAN (4G) or NR (5G). FWA sessions use the same BNG-UP, charging, authentication, and address management methods (including ODSA) as fixed BNG sessions.
    - Address assignment protocols
      Get a generic overview of the address assignment protocols supported in a MAG-c solution.
    - YANG state
  - Service Based Interfaces
  - Address assignment
    Overview of the address assignment, and details on the supported local (ODSA) and AAA-based address assignment.
  - Authentication
    Configure authentication for a new MAG-c session, including the RADIUS authentication profile. Learn about the BNG EP and ADB lookup process.
  - PCF-based policy management
  - Accounting and charging
    Learn about the statistics collection from the BNG-UP, time-based and volume-based charging, RADIUS accounting configuration, and buffering of the RADIUS accounting messages for later retransmission.
  - Residential NAT
    Get information about NAT on BNG CUPS, learn about the functional split between MAG-c and BNG-UP, about configuring NAT, logging, and monitoring NAT resources.
  - Geo-redundancy
    Two MAG-c systems can be deployed in a geo-redundant configuration. If one system fails, the other system ensures uninterrupted service and minimizes the impact of failure for broadband clients.
  - Python support
    Customize the MAG-c behavior by applying user-defined Python scripts to inspect and modify control protocol packets.
  - BNG-UP resiliency
    An overview of the BNG-UP resiliency function and capabilities, resiliency handling, and deployment use cases.
  - Control Plane Function Guide PDF
- SR OS User Plane Function Guide

PFCP session

A session is the basic operational object of the BNG and represents the connectivity of a single device such as a residential gateway. Address assignment, authentication, accounting, and BNG-UP communication are all done in the scope of a single session. A PFCP association is needed to create a PFCP session.

March 15, 2024