An Overview of Operations, Administration, and Maintenance (OAM) Tools
RFC 7276
Internet Engineering Task Force (IETF) T. Mizrahi
Request for Comments: 7276 Marvell
Category: Informational N. Sprecher
ISSN: 2070-1721 Nokia Solutions and Networks
E. Bellagamba
Ericsson
Y. Weingarten
June 2014
An Overview of
Operations, Administration, and Maintenance (OAM) Tools
Abstract
Operations, Administration, and Maintenance (OAM) is a general term
that refers to a toolset for fault detection and isolation, and for
performance measurement. Over the years, various OAM tools have been
defined for various layers in the protocol stack.
This document summarizes some of the OAM tools defined in the IETF in
the context of IP unicast, MPLS, MPLS Transport Profile (MPLS-TP),
pseudowires, and Transparent Interconnection of Lots of Links
(TRILL). This document focuses on tools for detecting and isolating
failures in networks and for performance monitoring. Control and
management aspects of OAM are outside the scope of this document.
Network repair functions such as Fast Reroute (FRR) and protection
switching, which are often triggered by OAM protocols, are also out
of the scope of this document.
The target audience of this document includes network equipment
vendors, network operators, and standards development organizations.
This document can be used as an index to some of the main OAM tools
defined in the IETF. At the end of the document, a list of the OAM
toolsets and a list of the OAM functions are presented as a summary.
Mizrahi, et al. Informational [Page 1]
RFC 7276 Overview of OAM Tools June 2014
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for informational purposes.
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). Not all documents
approved by the IESG are a candidate for any level of Internet
Standard; see 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/rfc7276.
Copyright Notice
Copyright (c) 2014 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.
Mizrahi, et al. Informational [Page 2]
RFC 7276 Overview of OAM Tools June 2014
Table of Contents
1. Introduction ....................................................4
1.1. Background .................................................5
1.2. Target Audience ............................................6
1.3. OAM-Related Work in the IETF ...............................6
1.4. Focusing on the Data Plane .................................7
2. Terminology .....................................................8
2.1. Abbreviations ..............................................8
2.2. Terminology Used in OAM Standards .........................10
2.2.1. General Terms ......................................10
2.2.2. Operations, Administration, and Maintenance ........10
2.2.3. Functions, Tools, and Protocols ....................11
2.2.4. Data Plane, Control Plane, and Management Plane ....11
2.2.5. The Players ........................................12
2.2.6. Proactive and On-Demand Activation .................13
2.2.7. Connectivity Verification and Continuity Checks ....14
2.2.8. Connection-Oriented vs. Connectionless
Communication ......................................15
2.2.9. Point-to-Point vs. Point-to-Multipoint Services ....16
2.2.10. Failures ..........................................16
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