Yang-Push Notification Capabilities
draft-ietf-netconf-notification-capabilities-04
Document Type Active Internet-Draft (netconf WG)
Last updated 2019-09-23 (latest revision 2019-09-05)
Replaces draft-lengyel-netconf-notification-capabilities
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NETCONF                                                       B. Lengyel
Internet-Draft                                                  Ericsson
Intended status: Standards Track                                A. Clemm
Expires: March 7, 2020                                         Futurewei
                                                               B. Claise
                                                     Cisco Systems, Inc.
                                                       September 4, 2019

                  Yang-Push Notification Capabilities
            draft-ietf-netconf-notification-capabilities-04

Abstract

   This document proposes a YANG module that allows a server to specify
   server capabilities related to "Subscription to YANG Datastores"
   (Yang-Push).  It proposes to use YANG Instance Data to document this
   information and make it already available at implementation time, but
   also allow it to be reported at run-time.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on March 7, 2020.

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

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   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.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Notification Capability Model . . . . . . . . . . . . . . . .   4
     3.1.  Tree Diagram  . . . . . . . . . . . . . . . . . . . . . .   5
     3.2.  YANG Module . . . . . . . . . . . . . . . . . . . . . . .   6
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .  12
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  12
     5.1.  The IETF XML Registry . . . . . . . . . . . . . . . . . .  12
     5.2.  The YANG Module Names Registry  . . . . . . . . . . . . .  12
   6.  Open Issues . . . . . . . . . . . . . . . . . . . . . . . . .  12
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  13
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .  13
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  13
   Appendix A.  Instance data examples . . . . . . . . . . . . . . .  14
   Appendix B.  Changes between revisions  . . . . . . . . . . . . .  17
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  18

1.  Terminology

   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 BCP
   14 [RFC2119] [RFC8174] when, and only when, they appear in all
   capitals, as shown here.

   The terms Yang-Push, On-change subscription and Periodic subscription
   are used as defined in [I-D.ietf-netconf-yang-push]

   On-change Notification Capability: The capability of the server to
   support On-change subscriptions.

   The term Server is used as defined in [RFC8342]

   Implementation-time information: Information about the server's
   behavior that is made available during the implementation of the
   server, available from a source other then a running server.

   Run-time information: Information about the server's behavior that is
   available from the running server via management protocols such as
   NETCONF [RFC6241] or RESTCONF [RFC8040].

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2.  Introduction

   As defined in [I-D.ietf-netconf-yang-push] a server may allow clients
   to subscribe to updates from a datastore and subsequently push such
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