Label Switched Path (LSP) Ping for Pseudowire Forwarding Equivalence Classes (FECs) Advertised over IPv6
RFC 6829
Document | Type |
RFC - Proposed Standard
(January 2013; No errata)
Obsoleted by RFC 8029
Updates RFC 4379
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|
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Authors | Mach Chen , Ping Pan , Carlos Pignataro , Rajiv Asati | ||
Last updated | 2018-12-20 | ||
Replaces | draft-chen-mpls-ipv6-pw-lsp-ping | ||
Stream | Internet Engineering Task Force (IETF) | ||
Formats | plain text html pdf htmlized (tools) htmlized bibtex | ||
Reviews | |||
Stream | WG state | WG Document | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 6829 (Proposed Standard) | |
Action Holders |
(None)
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||
Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Adrian Farrel | ||
IESG note | Loa Andersson (loa.andersson@ericsson.com) is the document shepherd. | ||
Send notices to | (None) |
Internet Engineering Task Force (IETF) M. Chen Request for Comments: 6829 Huawei Technologies Co., Ltd Updates: 4379 P. Pan Category: Standards Track Infinera ISSN: 2070-1721 C. Pignataro R. Asati Cisco January 2013 Label Switched Path (LSP) Ping for Pseudowire Forwarding Equivalence Classes (FECs) Advertised over IPv6 Abstract The Multiprotocol Label Switching (MPLS) Label Switched Path (LSP) Ping and traceroute mechanisms are commonly used to detect and isolate data-plane failures in all MPLS LSPs, including LSPs used for each direction of an MPLS Pseudowire (PW). However, the LSP Ping and traceroute elements used for PWs are not specified for IPv6 address usage. This document extends the PW LSP Ping and traceroute mechanisms so they can be used with PWs that are set up and maintained using IPv6 LDP sessions. This document updates RFC 4379. 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/rfc6829. Chen, et al. Standards Track [Page 1] RFC 6829 PW LSP Ping for IPv6 January 2013 Copyright 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. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Pseudowire IPv4 Target FEC Stack Sub-TLVs . . . . . . . . . . . 3 3. Pseudowire IPv6 Target FEC Stack Sub-TLVs . . . . . . . . . . . 4 3.1. FEC 128 Pseudowire . . . . . . . . . . . . . . . . . . . . 4 3.2. FEC 129 Pseudowire . . . . . . . . . . . . . . . . . . . . 5 4. Summary of Changes . . . . . . . . . . . . . . . . . . . . . . 6 5. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 6 7. Security Considerations . . . . . . . . . . . . . . . . . . . . 7 8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 7 9. References . . . . . . . . . . . . . . . . . . . . . . . . . . 7 9.1. Normative References . . . . . . . . . . . . . . . . . . . 7 9.2. Informative References . . . . . . . . . . . . . . . . . . 7 1. Introduction Multiprotocol Label Switching (MPLS) Label Switched Path (LSP) Ping and traceroute are defined in [RFC4379]. These mechanisms can be used to detect data-plane failures in all MPLS LSPs, including Pseudowires (PWs). However, the PW LSP Ping and traceroute elements are not specified for IPv6 address usage. Specifically, the PW Forwarding Equivalence Class (FEC) sub-TLVs for the Target FEC Stack in the LSP Ping and traceroute mechanism are defined only for IPv4 Provider Edge (PE) routers and are not applicable for the case where PEs use IPv6 addresses. Three PW- related Target FEC sub-TLVs are currently defined (FEC 128 Pseudowire-Deprecated, FEC 128 Pseudowire-Current, and FEC 129 Pseudowire, see Sections 3.2.8 through 3.2.10 of [RFC4379]). These sub-TLVs contain the source and destination addresses of the LDP session, and currently only an IPv4 LDP session is covered. Despite Chen, et al. Standards Track [Page 2] RFC 6829 PW LSP Ping for IPv6 January 2013 the fact that the PE IP address family is not explicit in the sub-TLV definition, this can be inferred indirectly by examining the lengths of the Sender's/Remote PE Address fields or calculating the length ofShow full document text