A YANG Data Model for IPv4-in-IPv6 Address plus Port Softwires
draft-ietf-softwire-yang-02

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Document Type Active Internet-Draft (softwire WG)
Last updated 2017-10-30
Replaces draft-sun-softwire-yang
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Softwire Working Group                                            Q. Sun
Internet-Draft                                                   H. Wang
Intended status: Standards Track                                  Y. Cui
Expires: May 3, 2018                                 Tsinghua University
                                                               I. Farrer
                                                              S. Zechlin
                                                     Deutsche Telekom AG
                                                            M. Boucadair
                                                                  Orange
                                                                R. Asati
                                                     Cisco Systems, Inc.
                                                        October 30, 2017

     A YANG Data Model for IPv4-in-IPv6 Address plus Port Softwires
                      draft-ietf-softwire-yang-02

Abstract

   This document defines YANG data models for the configuration and
   operation of IPv4-in-IPv6 softwire Border Relays and Customer
   Premises Equipment.  The model covers the Lightweight 4over6, MAP-E,
   and MAP-T softwire mechanisms.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in [RFC2119].

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
   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 May 3, 2018.

Sun, et al.                Expires May 3, 2018                  [Page 1]
Internet-Draft           YANG for A+P Softwires             October 2017

Copyright Notice

   Copyright (c) 2017 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 . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Overview of the Models  . . . . . . . . . . . . . . . . . . .   3
     2.1.  Additional Configuration  . . . . . . . . . . . . . . . .   4
   3.  Softwire YANG CE Tree Diagram . . . . . . . . . . . . . . . .   5
     3.1.  Softwire CE Tree Diagram Descriptions . . . . . . . . . .   6
   4.  Softwire BR YANG Tree Diagram . . . . . . . . . . . . . . . .   7
     4.1.  BR Tree Diagrams  . . . . . . . . . . . . . . . . . . . .   8
     4.2.  Softwire BR Tree Diagram Descriptions . . . . . . . . . .  11
   5.  Softwire CE YANG Model  . . . . . . . . . . . . . . . . . . .  11
   6.  BR Softwire YANG Model  . . . . . . . . . . . . . . . . . . .  16
   7.  Common Softwire Element Groups YANG . . . . . . . . . . . . .  24
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  30
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  31
   10. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  31
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  32
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  32
     11.2.  Informative References . . . . . . . . . . . . . . . . .  33
   Appendix A.  Configuration Examples . . . . . . . . . . . . . . .  34
     A.1.  Configuration Example for a lw4o6 BR Binding-Table  . . .  34
     A.2.  Configuration Example for a MAP-E BR  . . . . . . . . . .  35
     A.3.  lw4o6 CE Configuration Example  . . . . . . . . . . . . .  37
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  40

1.  Introduction

   The IETF Softwire Working Group has developed several IPv4-in-IPv6
   softwire mechanisms to address various deployment contexts and
   constraints.  As a companion to the architectural specification
   documents, this document focuses on the provisioning of A+P softwire
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