Subscribing to YANG datastore push updates
draft-clemm-netconf-yang-push-00

The information below is for an old version of the document
Document Type Active Internet-Draft (individual)
Last updated 2015-03-09
Replaces draft-netmod-clemm-datastore-push
Replaced by RFC 8641, RFC 8641
Stream (None)
Intended RFC status (None)
Formats pdf htmlized bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
Network Working Group                                           A. Clemm
Internet-Draft                                        A. Gonzalez Prieto
Intended status: Standards Track                                 E. Voit
Expires: September 10, 2015                                Cisco Systems
                                                           March 9, 2015

               Subscribing to YANG datastore push updates
                  draft-clemm-netconf-yang-push-00.txt

Abstract

   This document defines a subscription and push mechanism for YANG
   datastores.  This mechanism allows client applications to request
   updates from a YANG datastore, which are then pushed by the server to
   the client per a subscription policy, without requiring additional
   client requests.

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 http://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 September 10, 2015.

Copyright Notice

   Copyright (c) 2015 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 described in Section 4.e of

Clemm, et al.          Expires September 10, 2015               [Page 1]
Internet-Draft               Datastore-Push                   March 2015

   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.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Definitions and Acronyms  . . . . . . . . . . . . . . . . . .   5
   3.  Solution Overview . . . . . . . . . . . . . . . . . . . . . .   6
     3.1.  Subscription Model  . . . . . . . . . . . . . . . . . . .   6
     3.2.  Negotiation of Subscription Policies  . . . . . . . . . .   8
     3.3.  Custom Datastreams  . . . . . . . . . . . . . . . . . . .   8
     3.4.  Push Data Stream and Transport Mapping  . . . . . . . . .   9
     3.5.  Subscription operations . . . . . . . . . . . . . . . . .  10
     3.6.  A YANG data model for management of datastore push
           subscriptions . . . . . . . . . . . . . . . . . . . . . .  13
     3.7.  Other considerations  . . . . . . . . . . . . . . . . . .  15
       3.7.1.  Authorization . . . . . . . . . . . . . . . . . . . .  15
       3.7.2.  Additional subscription primitives  . . . . . . . . .  15
       3.7.3.  Robustness and reliability considerations . . . . . .  16
       3.7.4.  Implementation considerations . . . . . . . . . . . .  16
   4.  YANG module . . . . . . . . . . . . . . . . . . . . . . . . .  16
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  24
   6.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  24
     6.1.  Normative References  . . . . . . . . . . . . . . . . . .  24
     6.2.  Informative References  . . . . . . . . . . . . . . . . .  25
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  25

1.  Introduction

   YANG [RFC6020] was originally designed for the Netconf protocol
   [RFC6241], which originally put most emphasis on configuration.
   However, YANG is not restricted to configuration data.  YANG
   datastores, i.e. datastores that contain data modeled according using
   YANG , can contain configuration as well as contain operational data.
   It is therefore reasonable to expect that data in YANG datastores
Show full document text