Subscription to YANG Notifications for Datastore Updates
RFC 8641

Document Type RFC - Proposed Standard (September 2019; No errata)
Last updated 2019-09-09
Replaces draft-clemm-netconf-yang-push
Stream IETF
Formats plain text pdf htmlized bibtex
Yang Validation 7 errors, 2 warnings.
Reviews
Additional URLs
- Yang catalog entry for ietf-yang-push@2019-05-21.yang
- Yang impact analysis for draft-ietf-netconf-yang-push
- Mailing list discussion
Stream WG state Submitted to IESG for Publication
Document shepherd Kent Watsen
Shepherd write-up Show (last changed 2019-02-26)
IESG IESG state RFC 8641 (Proposed Standard)
Consensus Boilerplate Yes
Telechat date
Responsible AD Ignas Bagdonas
Send notices to Kent Watsen <kent+ietf@watsen.net>
IANA IANA review state Version Changed - Review Needed
IANA action state RFC-Ed-Ack
Internet Engineering Task Force (IETF)                          A. Clemm
Request for Comments: 8641                                     Futurewei
Category: Standards Track                                        E. Voit
ISSN: 2070-1721                                            Cisco Systems
                                                          September 2019

        Subscription to YANG Notifications for Datastore Updates

Abstract

   This document describes a mechanism that allows subscriber
   applications to request a continuous and customized stream of updates
   from a YANG datastore.  Providing such visibility into updates
   enables new capabilities based on the remote mirroring and monitoring
   of configuration and operational state.

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/rfc8641.

Clemm & Voit                 Standards Track                    [Page 1]
RFC 8641                        YANG-Push                 September 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.

   This document may contain material from IETF Documents or IETF
   Contributions published or made publicly available before November
   10, 2008.  The person(s) controlling the copyright in some of this
   material may not have granted the IETF Trust the right to allow
   modifications of such material outside the IETF Standards Process.
   Without obtaining an adequate license from the person(s) controlling
   the copyright in such materials, this document may not be modified
   outside the IETF Standards Process, and derivative works of it may
   not be created outside the IETF Standards Process, except to format
   it for publication as an RFC or to translate it into languages other
   than English.

Clemm & Voit                 Standards Track                    [Page 2]
RFC 8641                        YANG-Push                 September 2019

Table of Contents

   1. Introduction ....................................................4
   2. Definitions .....................................................4
   3. Solution Overview ...............................................6
      3.1. Subscription Model .........................................6
      3.2. Negotiation of Subscription Policies .......................7
      3.3. On-Change Considerations ...................................8
      3.4. Reliability Considerations .................................9
      3.5. Data Encodings ............................................10
      3.6. Defining the Selection with a Datastore ...................11
      3.7. Streaming Updates .........................................12
      3.8. Subscription Management ...................................15
      3.9. Receiver Authorization ....................................16
      3.10. On-Change Notifiable Datastore Nodes .....................18
      3.11. Other Considerations .....................................18
   4. A YANG Data Model for Management of Datastore Push
      Subscriptions ..................................................20
      4.1. Overview ..................................................20
      4.2. Subscription Configuration ................................27
      4.3. YANG Notifications ........................................28
      4.4. YANG RPCs .................................................29
   5. YANG Module for YANG-Push ......................................34
   6. IANA Considerations ............................................51
   7. Security Considerations ........................................51
   8. References .....................................................53
      8.1. Normative References ......................................53
      8.2. Informative References ....................................55
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