Label Switched Path (LSP) Ping for IPv6 Pseudowire FECs
draft-ietf-mpls-ipv6-pw-lsp-ping-03
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2012-11-29
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draft-chen-mpls-ipv6-pw-lsp-ping
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Proposed Standard
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Approved-announcement to be sent::Point Raised - writeup needed
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Adrian Farrel
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Network Working Group M. Chen
Internet-Draft Huawei Technologies Co., Ltd
Updates: 4379 (if approved) P. Pan
Intended status: Standards Track Infinera
Expires: April 27, 2013 C. Pignataro
R. Asati
Cisco
October 24, 2012
Label Switched Path (LSP) Ping for IPv6 Pseudowire FECs
draft-ietf-mpls-ipv6-pw-lsp-ping-03
Abstract
Multi-Protocol 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 Pseudowire (PW) LSPs.
The PW LSP Ping and traceroute elements, however, are not specified
for IPv6 address usage.
This document extends the PW LSP Ping and traceroute mechanisms so
they can be used with IPv6 PWs, and updates RFC 4379.
Requirements Language
The 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 RFC 2119 [RFC2119].
Status of this Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on April 27, 2013.
Copyright Notice
Chen, et al. Expires April 27, 2013 [Page 1]
Internet-Draft IPv6 PW LSP Ping October 2012
Copyright (c) 2012 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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described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. IPv4 Pseudowire Sub-TLVs . . . . . . . . . . . . . . . . . . . 3
3. IPv6 Pseudowire Sub-TLVs . . . . . . . . . . . . . . . . . . . 4
3.1. IPv6 FEC 128 Pseudowire Sub-TLV . . . . . . . . . . . . . . 4
3.2. IPv6 FEC 129 Pseudowire Sub-TLV . . . . . . . . . . . . . . 5
4. Summary of Changes . . . . . . . . . . . . . . . . . . . . . . 7
5. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 7
7. Security Considerations . . . . . . . . . . . . . . . . . . . . 8
8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 8
9. References . . . . . . . . . . . . . . . . . . . . . . . . . . 8
9.1. Normative References . . . . . . . . . . . . . . . . . . . 8
9.2. Informative References . . . . . . . . . . . . . . . . . . 8
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 8
Chen, et al. Expires April 27, 2013 [Page 2]
Internet-Draft IPv6 PW LSP Ping October 2012
1. Introduction
Multi-Protocol 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 Label Switched Paths
(LSPs) including Pseudowires (PWs). The PW LSP Ping and traceroute
elements, however, are not specified for IPv6 address usage.
Specifically, the PW FEC sub-TLVs for the Target FEC Stack in the LSP
Ping and traceroute mechanism are defined only for IPv4 Provider Edge
(PEs) routers, and are not applicable for the case where PEs use IPv6
addresses. Three PW related Target Forwarding Equivalence Class
(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
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