A YANG Data Model for NTP
draft-ietf-ntp-yang-data-model-09
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Last updated 2020-07-13
Replaces draft-wu-ntp-ntp-cfg
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NTP Working Group                                                  N. Wu
Internet-Draft                                             D. Dhody, Ed.
Intended status: Standards Track                                  Huawei
Expires: January 14, 2021                                  A. Sinha, Ed.
                                                            A. Kumar S N
                                                            RtBrick Inc.
                                                                 Y. Zhao
                                                                Ericsson
                                                           July 13, 2020

                       A YANG Data Model for NTP
                   draft-ietf-ntp-yang-data-model-09

Abstract

   This document defines a YANG data model for Network Time Protocol
   (NTP) 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", "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.

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 January 14, 2021.

Wu, et al.              Expires January 14, 2021                [Page 1]
Internet-Draft                YANG for NTP                     July 2020

Copyright Notice

   Copyright (c) 2020 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
   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  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Operational State . . . . . . . . . . . . . . . . . . . .   3
     1.2.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
     1.3.  Tree Diagrams . . . . . . . . . . . . . . . . . . . . . .   3
     1.4.  Prefixes in Data Node Names . . . . . . . . . . . . . . .   3
     1.5.  Refrences in the Model  . . . . . . . . . . . . . . . . .   4
   2.  NTP data model  . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Relationship with NTPv4-MIB . . . . . . . . . . . . . . . . .   9
   4.  Relationship with RFC 7317  . . . . . . . . . . . . . . . . .   9
   5.  Access Rules  . . . . . . . . . . . . . . . . . . . . . . . .  10
   6.  Key Management  . . . . . . . . . . . . . . . . . . . . . . .  10
   7.  NTP YANG Module . . . . . . . . . . . . . . . . . . . . . . .  10
   8.  Usage Example . . . . . . . . . . . . . . . . . . . . . . . .  35
     8.1.  Unicast association . . . . . . . . . . . . . . . . . . .  35
     8.2.  Refclock master . . . . . . . . . . . . . . . . . . . . .  37
     8.3.  Authentication configuration  . . . . . . . . . . . . . .  38
     8.4.  Access configuration  . . . . . . . . . . . . . . . . . .  40
     8.5.  Multicast configuration . . . . . . . . . . . . . . . . .  40
     8.6.  Manycast configuration  . . . . . . . . . . . . . . . . .  44
     8.7.  Clock state . . . . . . . . . . . . . . . . . . . . . . .  47
     8.8.  Get all association . . . . . . . . . . . . . . . . . . .  47
     8.9.  Global statistic  . . . . . . . . . . . . . . . . . . . .  49
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  49
   10. Security Considerations . . . . . . . . . . . . . . . . . . .  50
   11. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  51
   12. References  . . . . . . . . . . . . . . . . . . . . . . . . .  51
     12.1.  Normative References . . . . . . . . . . . . . . . . . .  51
     12.2.  Informative References . . . . . . . . . . . . . . . . .  53
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  53

Wu, et al.              Expires January 14, 2021                [Page 2]
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