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draft-ietf-netconf-rfc7895bis-03

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Document Type Active Internet-Draft (netconf WG)
Last updated 2018-01-17
Replaces draft-nmdsdt-netconf-rfc7895bis
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Network Working Group                                         A. Bierman
Internet-Draft                                                 YumaWorks
Obsoletes: rfc7895 (if approved)                            M. Bjorklund
Intended status: Standards Track                          Tail-f Systems
Expires: July 21, 2018                                  J. Schoenwaelder
                                                       Jacobs University
                                                               K. Watsen
                                                        Juniper Networks
                                                               R. Wilton
                                                           Cisco Systems
                                                        January 17, 2018

                              YANG Library
                    draft-ietf-netconf-rfc7895bis-03

Abstract

   This document describes a YANG library that provides information
   about all the YANG modules and datastores used by a network
   management server (e.g., a Network Configuration Protocol (NETCONF)
   server).  Simple caching mechanisms are provided to allow clients to
   minimize retrieval of this information.

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
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   This Internet-Draft will expire on July 21, 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

Bierman, et al.           Expires July 21, 2018                 [Page 1]
Internet-Draft                YANG Library                  January 2018

   (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
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
     1.2.  Tree Diagrams . . . . . . . . . . . . . . . . . . . . . .   4
     1.3.  Motivation for rfc7895bis . . . . . . . . . . . . . . . .   4
     1.4.  Summary of Changes from RFC 7895  . . . . . . . . . . . .   6
   2.  YANG Library  . . . . . . . . . . . . . . . . . . . . . . . .   6
     2.1.  yang-library  . . . . . . . . . . . . . . . . . . . . . .   7
       2.1.1.  yang-library/checksum . . . . . . . . . . . . . . . .   7
       2.1.2.  yang-library/datastore  . . . . . . . . . . . . . . .   8
       2.1.3.  yang-library/schema . . . . . . . . . . . . . . . . .   8
       2.1.4.  yang-library/module-set . . . . . . . . . . . . . . .   8
       2.1.5.  yang-library/module-set/module  . . . . . . . . . . .   9
       2.1.6.  yang-library/module-set/import-only-module  . . . . .   9
     2.2.  YANG Library Module . . . . . . . . . . . . . . . . . . .   9
   3.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  21
     3.1.  YANG Module Registry  . . . . . . . . . . . . . . . . . .  21
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .  22
   5.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  22
   6.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  23
     6.1.  Normative References  . . . . . . . . . . . . . . . . . .  23
     6.2.  Informative References  . . . . . . . . . . . . . . . . .  24
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  24

1.  Introduction

   There is a need for standard mechanisms to provide the operational
   state of a network management server.  This includes, for instance,
   identifying the YANG modules and datastores that are in use by a
   server and how they relate to each other.

   This document defines a YANG module that can be used to provide this
   informaton, in a way that is compatible with the NMDA
   [I-D.ietf-netmod-revised-datastores], but that is also backwards
   compatible with the "YANG Module Library" YANG module defined in
   [RFC7895].

   If a large number of YANG modules are utilized by the server, then
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