YANG Instance Data File Format
draft-ietf-netmod-yang-instance-file-format-02
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Last updated 2019-02-26
Replaces draft-lengyel-netmod-yang-instance-data
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Netmod                                                        B. Lengyel
Internet-Draft                                                  Ericsson
Intended status: Standards Track                               B. Claise
Expires: August 30, 2019                             Cisco Systems, Inc.
                                                       February 26, 2019

                     YANG Instance Data File Format
             draft-ietf-netmod-yang-instance-file-format-02

Abstract

   There is a need to document data defined in YANG models when a live
   YANG server is not available.  Data is often needed already at design
   or implementation time or needed by groups that do not have a live
   running YANG server available.  This document specifies a standard
   file format for YANG instance data (which follows the syntax and
   semantic from existing YANG models, re-using the same format as the
   reply to a <get> operation/request) and decorates it with metadata.

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
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   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 August 30, 2019.

Copyright Notice

   Copyright (c) 2019 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

Lengyel & Claise         Expires August 30, 2019                [Page 1]
Internet-Draft             YANG Instance Data              February 2019

   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.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  High Level Principles . . . . . . . . . . . . . . . . . .   4
   3.  Instance Data File Format . . . . . . . . . . . . . . . . . .   4
     3.1.  Specifying the Target YANG Modules: target-ptr  . . . . .   6
       3.1.1.  INLINE Method . . . . . . . . . . . . . . . . . . . .   7
       3.1.2.  URI Method  . . . . . . . . . . . . . . . . . . . . .   8
     3.2.  Examples  . . . . . . . . . . . . . . . . . . . . . . . .   8
   4.  Data Life cycle . . . . . . . . . . . . . . . . . . . . . . .  12
   5.  Delivery of Instance Data . . . . . . . . . . . . . . . . . .  13
   6.  Backwards Compatibility . . . . . . . . . . . . . . . . . . .  13
   7.  YANG Model  . . . . . . . . . . . . . . . . . . . . . . . . .  13
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  17
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  17
     9.1.  URI Registration  . . . . . . . . . . . . . . . . . . . .  17
     9.2.  YANG Module Name Registration . . . . . . . . . . . . . .  17
   10. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  17
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  18
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  18
     11.2.  Informative References . . . . . . . . . . . . . . . . .  19
   Appendix A.  Open Issues  . . . . . . . . . . . . . . . . . . . .  19
   Appendix B.  Changes between revisions  . . . . . . . . . . . . .  19
   Appendix C.  Detailed Use Cases - Non-Normative . . . . . . . . .  21
     C.1.  Use Cases . . . . . . . . . . . . . . . . . . . . . . . .  21
       C.1.1.  Use Case 1: Early Documentation of Server
               Capabilities  . . . . . . . . . . . . . . . . . . . .  22
       C.1.2.  Use Case 2: Preloading Data . . . . . . . . . . . . .  23
       C.1.3.  Use Case 3: Documenting Factory Default Settings  . .  23
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  23

1.  Terminology

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in BCP
   14 RFC 2119 [RFC2119] RFC 8174 [RFC8174] when, and only when, they
   appear in all capitals, as shown here.
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