Definitions of Managed Objects for Network Time Protocol Version 4 (NTPv4)
RFC 5907
Internet Engineering Task Force (IETF) H. Gerstung
Request for Comments: 5907 Meinberg
Category: Standards Track C. Elliott
ISSN: 2070-1721
B. Haberman, Ed.
JHU APL
June 2010
Definitions of Managed Objects for
Network Time Protocol Version 4 (NTPv4)
Abstract
The Network Time Protocol (NTP) is used in networks of all types and
sizes for time synchronization of servers, workstations, and other
networked equipment. As time synchronization is more and more a
mission-critical service, standardized means for monitoring and
management of this subsystem of a networked host are required to
allow operators of such a service to set up a monitoring system that
is platform- and vendor-independent. This document provides a
standardized collection of data objects for monitoring the NTP entity
of such a network participant and it is part of the NTP version 4
standardization effort.
5Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc5907.
Gerstung, et al. Standards Track [Page 1]
RFC 5907 Definitions of Managed Objects for NTPv4 June 2010
Copyright Notice
Copyright (c) 2010 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
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described in the Simplified BSD License.
Table of Contents
1. Introduction ....................................................2
2. Conventions Used in This Document ...............................3
3. The Internet-Standard Management Framework ......................3
4. Technical Description ...........................................3
5. MIB Definition ..................................................4
6. IANA Considerations ............................................23
7. Security Considerations ........................................23
8. Acknowledgments ................................................24
9. References .....................................................24
9.1. Normative References ......................................24
9.2. Informative References ....................................2
1. Introduction
The NTPv4 MIB module is designed to allow Simple Network Management
Protocol (SNMP) to be used to monitor and manage local NTP [RFC5905]
entities. It provides a collection of data objects that can be
queried using the SNMP protocol and represent the current status of
the NTP entity. This includes general information about the NTP
entity itself (vendor, product, version) as well as connectivity to
upstream NTP servers used as sources of reference time and to
hardware reference clocks like radio clocks. The most important
values are included in order to be able to detect failures before
they can have an impact on the overall time synchronization status of
the network. There are also a collection of notification objects to
inform about state changes in the NTP entity. There are objects to
control these notifications as well.
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RFC 5907 Definitions of Managed Objects for NTPv4 June 2010
2. Conventions Used in This Document
The capitalized 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
[RFC2119].
3. The Internet-Standard Management Framework
For a detailed overview of the documents that describe the current
Internet-Standard Management Framework, please refer to section 7 of
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