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draft-ietf-netconf-rfc7895bis-04

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Document Type Active Internet-Draft (netconf WG)
Last updated 2018-02-01 (latest revision 2018-01-29)
Replaces draft-nmdsdt-netconf-rfc7895bis
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Network Working Group                                         A. Bierman
Internet-Draft                                                 YumaWorks
Obsoletes: 7895 (if approved)                               M. Bjorklund
Intended status: Standards Track                          Tail-f Systems
Expires: August 2, 2018                                 J. Schoenwaelder
                                                       Jacobs University
                                                               K. Watsen
                                                        Juniper Networks
                                                               R. Wilton
                                                           Cisco Systems
                                                        January 29, 2018

                              YANG Library
                    draft-ietf-netconf-rfc7895bis-04

Abstract

   This document describes a YANG library that provides information
   about the YANG modules, datastores, and datastore schemas used by a
   network management server.  Simple caching mechanisms are provided to
   allow clients to minimize retrieval of this information.  This
   version of the YANG library supports the Network Management Datastore
   Architecture by listing all datastores supported by a network
   management server and the schema that is used by each of these
   datastores.

   This document obsoletes RFC 7895.

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 http://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 2, 2018.

Bierman, et al.          Expires August 2, 2018                 [Page 1]
Internet-Draft                YANG Library                  January 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
   (http://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
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Objectives  . . . . . . . . . . . . . . . . . . . . . . . . .   4
   4.  YANG Library Data Model . . . . . . . . . . . . . . . . . . .   6
   5.  YANG Library YANG Module  . . . . . . . . . . . . . . . . . .   8
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  21
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  21
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  22
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  22
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  22
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  23
   Appendix A.  Summary of Changes from RFC 7895 . . . . . . . . . .  25
   Appendix B.  Example YANG Library Instance for a Basic Server . .  25
   Appendix C.  Example YANG Library Instance for an Advanced Server  28
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  32

1.  Introduction

   There is a need for a standard mechanism to expose which YANG modules
   [RFC7950], datastores and datastore schemas
   [I-D.ietf-netmod-revised-datastores] are in use by a network
   management server.

   This document defines the YANG module "ietf-yang-library" that
   provides this informaton.  This version of the YANG library is
   compatible with the Network Management Datastore Architecture (NMDA)
   [I-D.ietf-netmod-revised-datastores].  The previous version of the
   YANG library, defined in [RFC7895], is not compatible with the NMDA
   since it assumes that all datastores have exactly the same schema.
   This is not necessarily true in the NMDA since dynamic configuration
   datastores may have their own datastore schema.  Furthermore, the

Bierman, et al.          Expires August 2, 2018                 [Page 2]
Internet-Draft                YANG Library                  January 2018
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