Network Management Datastore Architecture
draft-ietf-netmod-revised-datastores-03

Document Type Active Internet-Draft (netmod WG)
Last updated 2017-07-03
Replaces draft-nmdsdt-netmod-revised-datastores
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Network Working Group                                       M. Bjorklund
Internet-Draft                                            Tail-f Systems
Intended status: Standards Track                        J. Schoenwaelder
Expires: January 4, 2018                               Jacobs University
                                                               P. Shafer
                                                               K. Watsen
                                                        Juniper Networks
                                                               R. Wilton
                                                           Cisco Systems
                                                            July 3, 2017

               Network Management Datastore Architecture
                draft-ietf-netmod-revised-datastores-03

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.

Status of This Memo

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   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on January 4, 2018.

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   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

Bjorklund, et al.        Expires January 4, 2018                [Page 1]
Internet-Draft                                                 July 2017

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Background  . . . . . . . . . . . . . . . . . . . . . . . . .   5
     3.1.  Original Model of Datastores  . . . . . . . . . . . . . .   6
   4.  Architectural Model of Datastores . . . . . . . . . . . . . .   8
     4.1.  The Startup Configuration Datastore (<startup>) . . . . .   9
     4.2.  The Candidate Configuration Datastore (<candidate>) . . .  10
     4.3.  The Running Configuration Datastore (<running>) . . . . .  10
     4.4.  The Intended Configuration Datastore (<intended>) . . . .  10
     4.5.  Conventional Configuration Datastores . . . . . . . . . .  11
     4.6.  Dynamic Datastores  . . . . . . . . . . . . . . . . . . .  11
     4.7.  The Operational State Datastore (<operational>) . . . . .  11
       4.7.1.  Missing Resources . . . . . . . . . . . . . . . . . .  12
       4.7.2.  System-controlled Resources . . . . . . . . . . . . .  13
       4.7.3.  Origin Metadata Annotation  . . . . . . . . . . . . .  13
   5.  Implications on YANG  . . . . . . . . . . . . . . . . . . . .  14
     5.1.  XPath Context . . . . . . . . . . . . . . . . . . . . . .  14
   6.  YANG Modules  . . . . . . . . . . . . . . . . . . . . . . . .  15
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  21
     7.1.  Updates to the IETF XML Registry  . . . . . . . . . . . .  21
     7.2.  Updates to the YANG Module Names Registry . . . . . . . .  22
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  22
   9.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  22
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  23
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  23
     10.2.  Informative References . . . . . . . . . . . . . . . . .  23
   Appendix A.  Guidelines for Defining Datastores . . . . . . . . .  24
     A.1.  Define which YANG modules can be used in the datastore  .  24
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