Network Management Datastore Architecture (NMDA)
RFC 8342
Document | Type |
RFC - Proposed Standard
(March 2018; Errata)
Updates RFC 7950
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Authors | Martin Björklund , Jürgen Schönwälder , Philip Shafer , Kent Watsen , Robert Wilton | |||||||
Last updated | 2020-01-21 | |||||||
Replaces | draft-nmdsdt-netmod-revised-datastores | |||||||
Stream | IETF | |||||||
Formats | plain text html pdf htmlized with errata bibtex | |||||||
Yang Validation | ☯ 0 errors, 0 warnings. | |||||||
Reviews | ||||||||
Additional Resources |
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Stream | WG state | Submitted to IESG for Publication | ||||||
Document shepherd | Lou Berger | |||||||
Shepherd write-up | Show (last changed 2017-12-20) | |||||||
IESG | IESG state | RFC 8342 (Proposed Standard) | ||||||
Action Holders |
(None)
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Consensus Boilerplate | Yes | |||||||
Telechat date | ||||||||
Responsible AD | Benoît Claise | |||||||
Send notices to | Lou Berger <lberger@labn.net> | |||||||
IANA | IANA review state | Version Changed - Review Needed | ||||||
IANA action state | RFC-Ed-Ack |
Internet Engineering Task Force (IETF) M. Bjorklund Request for Comments: 8342 Tail-f Systems Updates: 7950 J. Schoenwaelder Category: Standards Track Jacobs University ISSN: 2070-1721 P. Shafer K. Watsen Juniper Networks R. Wilton Cisco Systems March 2018 Network Management Datastore Architecture (NMDA) Abstract Datastores are a fundamental concept binding the data models written in the YANG data modeling language to network management protocols such as the Network Configuration Protocol (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 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/rfc8342. Bjorklund, et al. Standards Track [Page 1] RFC 8342 NMDA March 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 (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 2. Objectives ......................................................4 3. Terminology .....................................................5 4. Background ......................................................8 4.1. Original Model of Datastores ...............................9 5. Architectural Model of Datastores ..............................11 5.1. Conventional Configuration Datastores .....................12 5.1.1. The Startup Configuration Datastore (<startup>) ....12 5.1.2. The Candidate Configuration Datastore (<candidate>) ......................................13 5.1.3. The Running Configuration Datastore (<running>) ....13 5.1.4. The Intended Configuration Datastore (<intended>) ..13 5.2. Dynamic Configuration Datastores ..........................14 5.3. The Operational State Datastore (<operational>) ...........14 5.3.1. Remnant Configuration ..............................16 5.3.2. Missing Resources ..................................16 5.3.3. System-Controlled Resources ........................16 5.3.4. Origin Metadata Annotation .........................17 6. Implications on YANG ...........................................18 6.1. XPath Context .............................................18 6.2. Invocation of Actions and RPCs ............................19 7. YANG Modules ...................................................20 8. IANA Considerations ............................................26 8.1. Updates to the IETF XML Registry ..........................26 8.2. Updates to the YANG Module Names Registry .................27 9. Security Considerations ........................................27 10. References ....................................................28 10.1. Normative References .....................................28 10.2. Informative References ...................................29 Bjorklund, et al. Standards Track [Page 2] RFC 8342 NMDA March 2018 Appendix A. Guidelines for Defining Datastores ....................31Show full document text