Control-Plane and User-Plane Separation BNG Control Channel Protocol
draft-cuspdt-rtgwg-cu-separation-bng-protocol-03

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INTERNET-DRAFT                                                     S. Hu
Intended status: Proposed Standard                          China Mobile
                                                             D. Eastlake
                                                                 Z. Wang
                                                                  Huawei
                                                                  F. Qin
                                                                   Z. Li
                                                            China Mobile
                                                                 J. Song
                                                                  Huawei
                                                                 T. Chua
                                        Singapore Telecommunications Ltd
Expires: May 29, 2018                                  November 30, 2018

  Control-Plane and User-Plane Separation BNG Control Channel Protocol
          draft-cuspdt-rtgwg-cu-separation-bng-protocol-03.txt

Abstract

   This document specifies the CU Separation Broadband Network Gateway
   (BNG) control channel Protocol (CUSP) for communications between a
   Control Plane (CP) and a set of User Planes (UPs).  CUSP is designed
   to be flexible and extensible so as to easily allow for the addition
   of further messages and objects, should further requirements be
   expressed in the future.

Status of This Memo

   This Internet-Draft is submitted to IETF in full conformance with the
   provisions of BCP 78 and BCP 79.

   Distribution of this document is unlimited. Comments should be sent
   to the authors or the RGTWG working group mailing list:
   rtgwg@ietf.org.

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Hu, et al                                                       [Page 1]
INTERNET-DRAFT                                    CU Separation Protocol

Table of Contents

      1. Introduction............................................3

      2. Concept and Terminology.................................4
      2.1 Terminology............................................4

      3. Protocol Overview.......................................5
      3.1 Initialization Phase...................................5
      3.2 Network Resource Report................................5
      3.3 IPoE Session Establishment.............................6
      3.4 PPPoE Session Establishment............................7
      3.5 Setting the User's QoS Information.....................9
      3.6 CUSP Session Statistics...............................10

      4. CUSP Common Header.....................................11

      5. Objective Message Formats..............................12
      5.1 Objective TLV Format..................................12

      6. Control Message Format.................................14
      6.1 Control TLV Format....................................14
      6.2 Hello Message.........................................15
      6.3 Statistics Message....................................15

      7. Event TLV Format.......................................17
      7.1 Event TLV Format......................................17
      7.2 USER_TRAFFIC_INFORMATION Message......................18
      7.3 USER_DETECT_RESULT_INFORMATION Message................18

      8. Resource Report TLV Format.............................20
      8.1 Resource Report TLV Format............................20

      9.  Error Message Format..................................21

      10. Security Considerations...............................22

      11. IANA Considerations...................................22
      11.1 Message Types........................................22
      11.2 TLV Types Values.....................................22
      11.3 ERRID Codes..........................................22

      Normative References......................................23
      Informative References....................................23

      Authors' Addresses........................................24

Hu, et al                                                       [Page 2]
INTERNET-DRAFT                                    CU Separation Protocol

1. Introduction

   A Broadband Network Gateway (BNG) is an Ethernet-centric IP edge
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