RESTCONF Extensions to Support the Network Management Datastore Architecture
RFC 8527

Document Type RFC - Proposed Standard (March 2019; No errata)
Updates RFC 8040
Last updated 2019-03-06
Replaces draft-dsdt-netconf-restconf-nmda
Stream IETF
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Reviews
Stream WG state Submitted to IESG for Publication
Document shepherd Mahesh Jethanandani
Shepherd write-up Show (last changed 2018-04-25)
IESG IESG state RFC 8527 (Proposed Standard)
Consensus Boilerplate Yes
Telechat date
Responsible AD Ignas Bagdonas
Send notices to Mahesh Jethanandani <mjethanandani@gmail.com>
IANA IANA review state IANA OK - Actions Needed
IANA action state RFC-Ed-Ack
Internet Engineering Task Force (IETF)                      M. Bjorklund
Request for Comments: 8527                                Tail-f Systems
Updates: 8040                                           J. Schoenwaelder
Category: Standards Track                              Jacobs University
ISSN: 2070-1721                                                P. Shafer
                                                        Juniper Networks
                                                               K. Watsen
                                                         Watsen Networks
                                                               R. Wilton
                                                           Cisco Systems
                                                              March 2019

                   RESTCONF Extensions to Support the
               Network Management Datastore Architecture

Abstract

   This document extends the RESTCONF protocol defined in RFC 8040 in
   order to support the Network Management Datastore Architecture (NMDA)
   defined in RFC 8342.

   This document updates RFC 8040 by introducing new datastore
   resources, adding a new query parameter, and requiring the usage of
   the YANG library (described in RFC 8525) by RESTCONF servers
   implementing the NMDA.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Further information on
   Internet Standards is available in Section 2 of RFC 7841.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   https://www.rfc-editor.org/info/rfc8527.

Bjorklund, et al.            Standards Track                    [Page 1]
RFC 8527            RESTCONF Extensions for the NMDA          March 2019

Copyright Notice

   Copyright (c) 2019 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
   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 ....................................................3
      1.1. Terminology ................................................3
   2. Datastore and YANG Library Requirements .........................3
   3. RESTCONF Extensions .............................................4
      3.1. New Datastore Resources ....................................4
      3.2. Protocol Operations ........................................5
           3.2.1. The "with-defaults" Query Parameter on the
                  Operational State Datastore .........................5
           3.2.2. New "with-origin" Query Parameter ...................6
   4. IANA Considerations .............................................7
   5. Security Considerations .........................................7
   6. Normative References ............................................7
   Authors' Addresses .................................................9

Bjorklund, et al.            Standards Track                    [Page 2]
RFC 8527            RESTCONF Extensions for the NMDA          March 2019

1.  Introduction

   This document extends the RESTCONF protocol defined in [RFC8040] in
   order to support the Network Management Datastore Architecture (NMDA)
   defined in [RFC8342].

   This document updates [RFC8040] in order to enable RESTCONF clients
   to discover which datastores are supported by the RESTCONF server,
   determine which modules are supported in each datastore, and interact
   with all the datastores supported by the NMDA.  Specifically, the
   update introduces new datastore resources, adds a new query
   parameter, and requires the usage of the YANG library [RFC8525] by
   RESTCONF servers implementing the NMDA.

   The solution presented in this document is backwards compatible with
   [RFC8040].  This is achieved by only adding new resources and leaving
   the semantics of the existing resources unchanged.

1.1.  Terminology

   This document uses the terminology defined by the NMDA [RFC8342].

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in
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