Internet Engineering Task Force (IETF) G. Swallow, Ed.
Request for Comments: 6427 Cisco Systems, Inc.
Category: Standards Track A. Fulignoli, Ed.
ISSN: 2070-1721 Ericsson
M. Vigoureux, Ed.
Alcatel-Lucent
S. Boutros
Cisco Systems, Inc.
D. Ward
Juniper Networks, Inc.
November 2011
MPLS Fault Management Operations, Administration, and Maintenance (OAM)
Abstract
This document specifies Operations, Administration, and Maintenance
(OAM) messages to indicate service disruptive conditions for MPLS-
based transport network Label Switched Paths. The notification
mechanism employs a generic method for a service disruptive condition
to be communicated to a Maintenance Entity Group End Point. This
document defines an MPLS OAM channel, along with messages to
communicate various types of service disruptive conditions.
Status 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/rfc6427.
Swallow, et al. Standards Track [Page 1]
RFC 6427 MPLS Fault Management OAM November 2011
Copyright Notice
Copyright (c) 2011 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
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the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction ....................................................3
1.1. Terminology ................................................4
1.2. Requirements Language ......................................5
2. MPLS Fault Management Messages ..................................5
2.1. MPLS Alarm Indication Signal ...............................5
2.1.1. MPLS Link Down Indication ...........................6
2.2. MPLS Lock Report ...........................................6
2.3. Propagation of MPLS Fault Messages .........................7
3. MPLS Fault Management Channel ...................................7
4. MPLS Fault Management Message Format ............................8
4.1. Fault Management Message TLVs ..............................9
4.1.1. Interface Identifier TLV ...........................10
4.1.2. Global Identifier ..................................10
5. Sending and Receiving Fault Management Messages ................10
5.1. Sending a Fault Management Message ........................10
5.2. Clearing a Fault Management Indication ....................11
5.3. Receiving a Fault Management Indication ...................11
6. Minimum Implementation Requirements ............................12
7. Security Considerations ........................................12
8. IANA Considerations ............................................13
8.1. Pseudowire Associated Channel Type ........................13
8.2. MPLS Fault OAM Message Type Registry ......................13
8.3. MPLS Fault OAM Flag Registry ..............................14
8.4. MPLS Fault OAM TLV Registry ...............................14
9. References .....................................................15
9.1. Normative References ......................................15
9.2. Informative References ....................................15
10. Contributing Authors ..........................................16
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