Network Management Datastore Architecture
draft-ietf-netmod-revised-datastores-10

Document Type Active Internet-Draft (netmod WG)
Last updated 2018-01-16 (latest revision 2018-01-12)
Replaces draft-nmdsdt-netmod-revised-datastores
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Stream WG state Submitted to IESG for Publication (wg milestone: Nov 2017 - Submit draft-ietf-ne... )
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Network Working Group                                       M. Bjorklund
Internet-Draft                                            Tail-f Systems
Updates: 7950 (if approved)                             J. Schoenwaelder
Intended status: Standards Track                       Jacobs University
Expires: July 17, 2018                                         P. Shafer
                                                               K. Watsen
                                                        Juniper Networks
                                                               R. Wilton
                                                           Cisco Systems
                                                        January 13, 2018

               Network Management Datastore Architecture
                draft-ietf-netmod-revised-datastores-10

Abstract

   Datastores are a fundamental concept binding the data models written
   in the YANG data modeling language to network management protocols
   such as NETCONF and RESTCONF.  This document defines an architectural
   framework for datastores based on the experience gained with the
   initial simpler model, addressing requirements that were not well
   supported in the initial model.  This document updates RFC 7950.

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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   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 July 17, 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

Bjorklund, et al.         Expires July 17, 2018                 [Page 1]
Internet-Draft                                              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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   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  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Objectives  . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   4.  Background  . . . . . . . . . . . . . . . . . . . . . . . . .   7
     4.1.  Original Model of Datastores  . . . . . . . . . . . . . .   8
   5.  Architectural Model of Datastores . . . . . . . . . . . . . .   9
     5.1.  Conventional Configuration Datastores . . . . . . . . . .  10
       5.1.1.  The Startup Configuration Datastore (<startup>) . . .  11
       5.1.2.  The Candidate Configuration Datastore (<candidate>) .  11
       5.1.3.  The Running Configuration Datastore (<running>) . . .  12
       5.1.4.  The Intended Configuration Datastore (<intended>) . .  12
     5.2.  Dynamic Configuration Datastores  . . . . . . . . . . . .  13
     5.3.  The Operational State Datastore (<operational>) . . . . .  13
       5.3.1.  Remnant Configuration . . . . . . . . . . . . . . . .  14
       5.3.2.  Missing Resources . . . . . . . . . . . . . . . . . .  15
       5.3.3.  System-controlled Resources . . . . . . . . . . . . .  15
       5.3.4.  Origin Metadata Annotation  . . . . . . . . . . . . .  15
   6.  Implications on YANG  . . . . . . . . . . . . . . . . . . . .  17
     6.1.  XPath Context . . . . . . . . . . . . . . . . . . . . . .  17
     6.2.  Invocation of Actions and RPCs  . . . . . . . . . . . . .  18
   7.  YANG Modules  . . . . . . . . . . . . . . . . . . . . . . . .  18
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  24
     8.1.  Updates to the IETF XML Registry  . . . . . . . . . . . .  24
     8.2.  Updates to the YANG Module Names Registry . . . . . . . .  24
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  24
   10. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  25
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  25
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  26
     11.2.  Informative References . . . . . . . . . . . . . . . . .  26
   Appendix A.  Guidelines for Defining Datastores . . . . . . . . .  27
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