Internet Engineering Task Force (IETF) D. Mohan, Ed.
Request for Comments: 7023 Nortel Networks
Category: Standards Track N. Bitar, Ed.
ISSN: 2070-1721 Verizon
A. Sajassi, Ed.
Cisco
S. Delord
Alcatel-Lucent
P. Niger
France Telecom
R. Qiu
Juniper
October 2013
MPLS and Ethernet Operations, Administration, and Maintenance (OAM)
Interworking
Abstract
This document specifies the mapping of defect states between Ethernet
Attachment Circuits (ACs) and associated Ethernet pseudowires (PWs)
connected in accordance with the Pseudowire Emulation Edge-to-Edge
(PWE3) architecture to realize an end-to-end emulated Ethernet
service. It standardizes the behavior of Provider Edges (PEs) with
respect to Ethernet PW and AC defects.
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/rfc7023.
Mohan, et al. Standards Track [Page 1]RFC 7023 MPLS and Ethernet OAM Interworking October 2013Copyright Notice
Copyright (c) 2013 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.
Mohan, et al. Standards Track [Page 2]RFC 7023 MPLS and Ethernet OAM Interworking October 2013Table of Contents
1. Introduction ....................................................4
1.1. Specification of Requirements ..............................4
2. Overview ........................................................4
2.1. Reference Model and Defect Locations .......................6
2.2. Abstract Defect States .....................................6
3. Abbreviations and Terminology ...................................7
3.1. Abbreviations ..............................................7
3.2. Terminology ................................................8
4. PW Status and Defects ...........................................9
4.1. Use of Native Service (NS) Notification ....................9
4.2. Use of PW Status Notification for MPLS PSNs ...............10
4.3. Use of BFD Diagnostic Codes ...............................10
4.4. PW Defect States Entry and Exit Criteria ..................11
4.4.1. PW Receive Defect State Entry and Exit .............11
4.4.2. PW Transmit Defect State Entry and Exit ............11
5. Ethernet AC Defect States Entry and Exit Criteria ..............12
5.1. AC Receive Defect State Entry and Exit ....................12
5.2. AC Transmit Defect State Entry and Exit ...................13
6. Ethernet AC and PW Defect States Interworking ..................14
6.1. PW Receive Defect State Entry Procedures ..................14
6.2. PW Receive Defect State Exit Procedures ...................15
6.3. PW Transmit Defect State Entry Procedures .................16
6.4. PW Transmit Defect State Exit Procedures ..................16
6.5. AC Receive Defect State Entry Procedures ..................16
datatracker.ietf.org