A YANG Data Model for NTP
draft-wu-ntp-ntp-cfg-03

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draft-wu-ntp-ntp-cfg-03.txt:
xym 0.3.2:
Extracting 'ietf-ntp@2017-05-12.yang'


ietf-ntp@2017-05-12.yang:
pyang 1.7.2: pyang --verbose --ietf -p {libs} {model}:
No validation errors

yanglint 0.12.183: yanglint --verbose -p {rfclib} -p {draftlib} {model}:
No validation errors

Network Working Group                                              N. Wu
Internet-Draft                                                    Huawei
Intended status: Standards Track                            A. Kumar S N
Expires: November 13, 2017                                  RtBrick Inc.
                                                                 Y. Zhao
                                                                Ericsson
                                                                D. Dhody
                                                                A. Sinha
                                                                  Huawei
                                                            May 12, 2017

                       A YANG Data Model for NTP
                        draft-wu-ntp-ntp-cfg-03

Abstract

   This document defines a YANG data model for Network Time Protocol
   implementations.  The data model includes configuration data and
   state data.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

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 November 13, 2017.

Wu, et al.              Expires November 13, 2017               [Page 1]
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Copyright Notice

   Copyright (c) 2017 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
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Operational State . . . . . . . . . . . . . . . . . . . .   3
     1.2.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
     1.3.  Tree Diagrams . . . . . . . . . . . . . . . . . . . . . .   3
   2.  NTP data model  . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Relationship with NTPv4-MIB . . . . . . . . . . . . . . . . .   6
   4.  Relationship with RFC7317 . . . . . . . . . . . . . . . . . .   7
   5.  NTP YANG Module . . . . . . . . . . . . . . . . . . . . . . .   8
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  25
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  26
   8.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  26
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  26
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  26
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  27
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  28

1.  Introduction

   This document defines a YANG [RFC6020] data model for Network Time
   Protocol [RFC5905] implementations.

   The data model convers configuration of system parameters of NTP,
   such as access rules, authentication and VRF binding, and also
   associations of NTP in different modes and parameters of per-
   interface.  It also provides information about running state of NTP
   implementations.

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1.1.  Operational State

   NTP Operational State is included in the same tree as NTP
   configuration, consistent with Network Management Datastore
   Architecture [I-D.ietf-netmod-revised-datastores].  NTP current state