A YANG Data Model for Dual-Stack Lite (DS-Lite)
draft-ietf-softwire-dslite-yang-17

Document Type Active Internet-Draft (softwire WG)
Last updated 2018-06-06 (latest revision 2018-05-29)
Replaces draft-boucadair-softwire-dslite-yang
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- Yang catalog entry for ietf-dslite@2018-02-26.yang
- Yang impact analysis for draft-ietf-softwire-dslite-yang
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Network Working Group                                       M. Boucadair
Internet-Draft                                              C. Jacquenet
Intended status: Standards Track                                  Orange
Expires: November 30, 2018                                  S. Sivakumar
                                                           Cisco Systems
                                                            May 29, 2018

            A YANG Data Model for Dual-Stack Lite (DS-Lite)
                   draft-ietf-softwire-dslite-yang-17

Abstract

   This document defines a YANG module for the DS-Lite Address Family
   Transition Router (AFTR) and Basic Bridging BroadBand (B4) elements.

Editorial Note (To be removed by RFC Editor)

   Please update these statements in the document with the RFC number to
   be assigned to this document:

   o  "This version of this YANG module is part of RFC XXXX;"

   o  "RFC XXXX: A YANG Data Model for Dual-Stack Lite (DS-Lite)";

   o  "reference: RFC XXXX"

   Please update the "revision" date of the YANG module.

   Also, update this sentence with the RFC number to be assigned to I-
   D.ietf-opsawg-nat-yang:

   o  "RFC YYYY: A YANG Module for Network Address Translation (NAT) and
      Network Prefix Translation (NPT)"

Status of This Memo

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

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any

Boucadair, et al.       Expires November 30, 2018               [Page 1]
Internet-Draft             DS-Lite YANG Module                  May 2018

   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on November 30, 2018.

Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   4
   2.  DS-Lite YANG Module: An Overview  . . . . . . . . . . . . . .   4
   3.  DS-Lite YANG Module . . . . . . . . . . . . . . . . . . . . .   6
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .  15
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  16
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  16
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  16
     7.1.  Normative references  . . . . . . . . . . . . . . . . . .  16
     7.2.  Informative references  . . . . . . . . . . . . . . . . .  17
   Appendix A.  B4 Example . . . . . . . . . . . . . . . . . . . . .  19
   Appendix B.  AFTR Examples  . . . . . . . . . . . . . . . . . . .  19
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  20

1.  Introduction

   This document defines a data model for DS-Lite [RFC6333], using the
   YANG data modeling language [RFC7950].  Both the Address Family
   Transition Router (AFTR) and Basic Bridging BroadBand (B4) elements
   are covered by this specification.

   As a reminder, Figure 1 illustrates an overview of the DS-Lite
   architecture that involves AFTR and B4 elements.

Boucadair, et al.       Expires November 30, 2018               [Page 2]
Internet-Draft             DS-Lite YANG Module                  May 2018

                      +-----------+
                      |    Host   |
                      +-----+-----+
                            |192.0.2.1
                            |
                            |
                            |192.0.2.2
                  +---------|---------+
                  |         |         |
                  |    Home router    |
                  |+--------+--------+|
                  ||       B4        ||
                  |+--------+--------+|
                  +--------|||--------+
                           |||2001:db8:0:1::1
                           |||
                           |||<-IPv4-in-IPv6 softwire
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