YANG Module Tags
draft-rtgyangdt-netmod-module-tags-02

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Network Working Group                                           C. Hopps
Internet-Draft                                          Deutsche Telekom
Updates: rfc6087bis (if approved)                              L. Berger
Intended status: Standards Track                 LabN Consulting, L.L.C.
Expires: April 27, 2018                                    D. Bogdanovic
                                                        October 24, 2017

                            YANG Module Tags
                 draft-rtgyangdt-netmod-module-tags-02

Abstract

   This document provides for the association of tags with YANG modules.
   The expectation is for such tags to be used to help classify and
   organize modules.  A method for defining, reading and writing a
   modules tags is provided, as well as an augmentation to YANG library.
   Tags may be standardized and assigned during module definition;
   assigned by implementations; or dynamically defined and set by users.
   This document provides guidance to future model writers and, as such,
   this document updates [I-D.ietf-netmod-rfc6087bis].

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 April 27, 2018.

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

Hopps, et al.            Expires April 27, 2018                 [Page 1]
Internet-Draft              YANG Module Tags                October 2017

   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
   2.  Conventions Used in This Document . . . . . . . . . . . . . .   3
   3.  Tag Locations . . . . . . . . . . . . . . . . . . . . . . . .   3
   4.  Tag Prefixes  . . . . . . . . . . . . . . . . . . . . . . . .   3
     4.1.  IETF Standard Tags  . . . . . . . . . . . . . . . . . . .   3
     4.2.  Vendor Tags . . . . . . . . . . . . . . . . . . . . . . .   3
     4.3.  Local Tags  . . . . . . . . . . . . . . . . . . . . . . .   4
     4.4.  Reserved Tags . . . . . . . . . . . . . . . . . . . . . .   4
   5.  Tag Management  . . . . . . . . . . . . . . . . . . . . . . .   4
     5.1.  Module Definition Association . . . . . . . . . . . . . .   4
     5.2.  Implementation Association  . . . . . . . . . . . . . . .   4
     5.3.  Administrative Tagging  . . . . . . . . . . . . . . . . .   4
       5.3.1.  Resetting Tags  . . . . . . . . . . . . . . . . . . .   5
   6.  Tags Module Structure . . . . . . . . . . . . . . . . . . . .   5
     6.1.  Tags Module Tree  . . . . . . . . . . . . . . . . . . . .   5
     6.2.  Tags Module . . . . . . . . . . . . . . . . . . . . . . .   5
   7.  Library Augmentation  . . . . . . . . . . . . . . . . . . . .   7
     7.1.  Library Augmentation Module . . . . . . . . . . . . . . .   8
   8.  Other Classifications . . . . . . . . . . . . . . . . . . . .   9
   9.  Guidelines to Model Writers . . . . . . . . . . . . . . . . .   9
     9.1.  Define Standard Tags  . . . . . . . . . . . . . . . . . .   9
   10. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  10
     10.1.  YANG Module Tag Prefix Registry  . . . . . . . . . . . .  10
     10.2.  YANG Module IETF Tag Registry  . . . . . . . . . . . . .  10
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  12
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  12
     11.2.  Informative References . . . . . . . . . . . . . . . . .  12
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  12

1.  Introduction

   The use of tags for classification and organization is fairly
   ubiquitous not only within IETF protocols, but in the internet itself
   (e.g., #hashtags).  Tags can be usefully standardized, but they can
   also serve as a non-standardized mechanism available for users to
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