Mounting YANG-Defined Information from Remote Datastores
draft-clemm-netmod-mount-06

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Last updated 2017-03-29
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Network Working Group                                           A. Clemm
Internet-Draft                                                    Huawei
Intended status: Experimental                                    E. Voit
Expires: October 1, 2017                                       J. Medved
                                                           Cisco Systems
                                                          March 30, 2017

        Mounting YANG-Defined Information from Remote Datastores
                    draft-clemm-netmod-mount-06.txt

Abstract

   This document introduces capabilities that allow YANG datastores to
   reference and incorporate information from remote datastores.  This
   is accomplished by extending YANG with the ability to define mount
   points that reference data nodes in another YANG subtree, by
   subsequently allowing those data nodes to be accessed by client
   applications as if part of an alternative data hierarchy, and by
   providing the necessary means to manage and administer those mount
   points.  Two flavors are defined: Alias-Mount allows to mount local
   subtrees, while Peer-Mount allows subtrees to reside on and be
   authoritatively owned by a remote server.  YANG-Mount facilitates the
   development of applications that need to access data that transcends
   individual network devices while improving network-wide object
   consistency, or that require an aliasing capability to be able to
   create overlay structures for YANG data.

Status of This Memo

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   This Internet-Draft will expire on October 1, 2017.

Clemm, et al.            Expires October 1, 2017                [Page 1]
Internet-Draft                 YANG-Mount                     March 2017

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Overview  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.2.  Examples  . . . . . . . . . . . . . . . . . . . . . . . .   5
   2.  Definitions and Acronyms  . . . . . . . . . . . . . . . . . .   7
   3.  Example scenarios . . . . . . . . . . . . . . . . . . . . . .   7
     3.1.  Network controller view . . . . . . . . . . . . . . . . .   8
     3.2.  Consistent network configuration  . . . . . . . . . . . .  10
   4.  Operating on mounted data . . . . . . . . . . . . . . . . . .  11
     4.1.  General principles  . . . . . . . . . . . . . . . . . . .  11
     4.2.  Data retrieval  . . . . . . . . . . . . . . . . . . . . .  12
     4.3.  Other operations  . . . . . . . . . . . . . . . . . . . .  12
     4.4.  Other considerations  . . . . . . . . . . . . . . . . . .  13
   5.  Data model structure  . . . . . . . . . . . . . . . . . . . .  14
     5.1.  YANG mountpoint extensions  . . . . . . . . . . . . . . .  14
     5.2.  YANG structure diagrams . . . . . . . . . . . . . . . . .  15
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