Control Messages Protocol for Use with Network Time Protocol Version 4
draft-ietf-ntp-mode-6-cmds-03

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Last updated 2017-09-18
Replaces draft-haberman-ntpwg-mode-6-cmds
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Network Working Group                                           D. Mills
Internet-Draft                                    University of Delaware
Intended status: Informational                          B. Haberman, Ed.
Expires: March 22, 2018                                              JHU
                                                      September 18, 2017

 Control Messages Protocol for Use with Network Time Protocol Version 4
                     draft-ietf-ntp-mode-6-cmds-03

Abstract

   This document describes the structure of the control messages used
   with the Network Time Protocol.  These control messages can be used
   to monitor and control the Network Time Protocol application running
   on any IP network attached computer.  The information in this
   document was originally described in Appendix B of RFC 1305.  The
   goal of this document is to provide a historic description of the
   control messages.

Status of This Memo

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Mills & Haberman         Expires March 22, 2018                 [Page 1]
Internet-Draft            NTP Control Messages            September 2017

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   This document may contain material from IETF Documents or IETF
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Control Message Overview  . . . . . . . . . . . . . . . .   3
     1.2.  Remote Facility Message Overview  . . . . . . . . . . . .   4
   2.  NTP Control Message Format  . . . . . . . . . . . . . . . . .   4
   3.  Status Words  . . . . . . . . . . . . . . . . . . . . . . . .   7
     3.1.  System Status Word  . . . . . . . . . . . . . . . . . . .   8
     3.2.  Peer Status Word  . . . . . . . . . . . . . . . . . . . .  10
     3.3.  Clock Status Word . . . . . . . . . . . . . . . . . . . .  12
     3.4.  Error Status Word . . . . . . . . . . . . . . . . . . . .  12
   4.  Commands  . . . . . . . . . . . . . . . . . . . . . . . . . .  13
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  16
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  16
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  18
   8.  Normative References  . . . . . . . . . . . . . . . . . . . .  18
   Appendix A.  NTP Remote Facility Message Format . . . . . . . . .  18
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  20

1.  Introduction

   RFC 1305 [RFC1305] described a set of control messages for use within
   the Network Time Protocol (NTP) when a comprehensive network
   management solution was not available.  The definitions of these
   control messages were not promulgated to RFC 5905 [RFC5905] when NTP
   version 4 was documented.  These messages were intended for use only
   in systems where no other management facilities were available or
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