YANG Versioning Solution Overview
draft-verdt-netmod-yang-solutions-03

Document Type Active Internet-Draft (individual)
Last updated 2020-02-19
Stream (None)
Intended RFC status (None)
Formats plain text xml pdf htmlized bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
Network Working Group                                     R. Wilton, Ed.
Internet-Draft                                       Cisco Systems, Inc.
Intended status: Informational                         February 19, 2020
Expires: August 22, 2020

                   YANG Versioning Solution Overview
                  draft-verdt-netmod-yang-solutions-03

Abstract

   This document gives an overview of the different documents that
   comprise a full solution to the YANG versioning requirements
   document.  The purpose of this document is to help readers understand
   how the discrete parts of the YANG versioning solution fit together
   during working group development of the solution documents.

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 August 22, 2020.

Copyright Notice

   Copyright (c) 2020 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.

Wilton                   Expires August 22, 2020                [Page 1]
Internet-Draft      YANG Versioning Solution Overview      February 2020

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Solution Documents  . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Updated YANG Module Revision Handling . . . . . . . . . .   3
     2.2.  YANG Semantic Versioning  . . . . . . . . . . . . . . . .   4
     2.3.  Versioned YANG packages . . . . . . . . . . . . . . . . .   4
     2.4.  Dynamic YANG schema selection . . . . . . . . . . . . . .   5
     2.5.  YANG Schema Comparison  . . . . . . . . . . . . . . . . .   6
   3.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .   6
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .   7
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   7
   6.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   7
     6.1.  Normative References  . . . . . . . . . . . . . . . . . .   7
     6.2.  Informative References  . . . . . . . . . . . . . . . . .   8
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .   8

1.  Introduction

   [I-D.ietf-netmod-yang-versioning-reqs] documents the requirements for
   any solution to the YANG [RFC7950] versioning problem.  In
   particular, chapter 5 lists the formal requirements that a solution
   requires.

   The complete solution to all of the YANG versioning requirements is
   comprised of five documents, each addressing different aspects of the
   solution.  These documents are:

   1.  [I-D.verdt-netmod-yang-module-versioning]

   2.  [I-D.verdt-netmod-yang-semver]

   3.  [I-D.rwilton-netmod-yang-packages]

   4.  [I-D.wilton-netmod-yang-ver-selection]

   5.  [I-D.verdt-netmod-yang-schema-comparison]

   The aim of this document is to help readers understand how these
   different solution documents fit together, and also which documents
   contribute solutions that address particular individual requirements.

   Open issues, across all of the solution documents are tracked at
   <https://github.com/netmod-wg/yang-ver-dt/issues>.

Wilton                   Expires August 22, 2020                [Page 2]
Internet-Draft      YANG Versioning Solution Overview      February 2020

2.  Solution Documents

2.1.  Updated YANG Module Revision Handling

   In summary, [I-D.verdt-netmod-yang-module-versioning] specifies
   minimal extensions and updates to the YANG language, YANG Library,
   and YANG author guidelines to provide more flexible YANG module
   revision handling.  The intent is that these changes and extensions
   could be folded into future revisions of the updated specifications.
   The document provides a base solution for all requirements except Req
   2.2, Req 3.1 and Req 3.2.

   The extensions and changes in the document can be summarized thus:
Show full document text