Requirements for Protocol between Control and User Plane on BNG
draft-wadhwa-rtgwg-bng-cups-protocol-requirements-02

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Last updated 2019-03-11
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gwg                                                         S. Wadhwa
Internet Draft                                               K. DeSmedt
Intended status: Informational                                 P. Muley
Expires: September 11, 2019                                       Nokia
                                                              R. Shinde
                                                           Reliance Jio
                                                              J. Newton
                                                               Vodafone
                                                             R. Hoffman
                                                                  TELUS
                                                                S. Pani
                                                       Juniper Networks
                                                         March 11, 2019

      Requirements for Protocol between Control and User Plane on BNG
         draft-wadhwa-rtgwg-bng-cups-protocol-requirements-02.txt

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   This Internet-Draft will expire on September 11, 2019.

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   Copyright (c) 2019 IETF Trust and the persons identified as the
   document authors. All rights reserved.

Wadhwa, et al         Expires September 11, 2019               [Page 1]
Internet-Draft    Protocol Requirements for BNG CUPS         March 2019

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   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document. Please review these documents
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Abstract

   Traditionally, the BNG provides aggregation of fixed access nodes
   (such as DSLAM and OLTs) over Ethernet and provides subscriber
   management and traffic management functions for residential
   subscribers. The BNG has however evolved to become a multi-access
   edge device that also provides termination of subscribers over
   fixed-wireless and hybrid access. An overall architecture and
   interfaces required between separated control and user-plane for a
   multi-access BNG are described in draft-wadhwa-rtgwg-bng-cups-
   01.txt. This document discusses requirements for protocol between
   subscriber-management control-plane and user-plane for BNG to
   achieve separation.

Contents
   1. Introduction...................................................3
      1.1. Requirements Language.....................................3
   2. Requirements for "CUPS protocol"...............................3
      2.1. State Control Interface Requirements......................5
      2.2. Extensibility.............................................8
      2.3. Scalability and Performance...............................9
      2.4. Transport Protocol.......................................10
      2.5. In-band Control Channel Requirements.....................10
      2.6. Resiliency...............................................12
      2.7. Security.................................................13
   3. "CUPS protocol" candidate.....................................13
   4. Security Considerations.......................................14
   5. Management Interface Requirements.............................14

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Internet-Draft    Protocol Requirements for BNG CUPS         March 2019
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