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Requirements for Subscription to YANG Datastores (RFC7923)

IP.com Disclosure Number: IPCOM000246799D
Original Publication Date: 2016-Jun-01
Included in the Prior Art Database: 2016-Jul-01
Document File: 36 page(s) / 38K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

E. Voit: AUTHOR [+3]


Applications interacting with YANG datastores require capabilities beyond the traditional client-server configuration of network elements. One class of such applications are service-assurance applications, which must maintain a continuous view of operational data and state. Another class of applications are security applications, which must continuously track changes made upon network elements to ensure compliance with corporate policy.

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Internet Engineering Task Force (IETF)                           E. Voit Request for Comments: 7923                                      A. Clemm Category: Informational                               A. Gonzalez Prieto ISSN: 2070-1721                                            Cisco Systems                                                                June 2016

             Requirements for Subscription to YANG Datastores


   This document provides requirements for a service that allows client    applications to subscribe to updates of a YANG datastore.  Based on    criteria negotiated as part of a subscription, updates will be pushed    to targeted recipients.  Such a capability eliminates the need for    periodic polling of YANG datastores by applications and fills a    functional gap in existing YANG transports (i.e., Network    Configuration Protocol (NETCONF) and RESTCONF).  Such a service can    be summarized as a "pub/sub" service for YANG datastore updates.    Beyond a set of basic requirements for the service, various    refinements are addressed.  These refinements include: periodicity of    object updates, filtering out of objects underneath a requested a    subtree, and delivery QoS guarantees.

Status of This Memo

   This document is not an Internet Standards Track specification; it is    published for informational purposes.

   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).  Not all documents    approved by the IESG are a candidate for any level of Internet    Standard; see 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    http://www.rfc-editor.org/info/rfc7923.

 Voit, et al.                  Informational                     [Page 1]
 RFC 7923             YANG Subscription Requirements            June 2016

 Copyright Notice

   Copyright (c) 2016 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    (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    to this document.  Code Components extracted from this document must    include Simplified BSD License text as d...