Segmented Pseudowire
RFC 6073
Internet Engineering Task Force (IETF) L. Martini
Request for Comments: 6073 C. Metz
Category: Standards Track Cisco Systems, Inc.
ISSN: 2070-1721 T. Nadeau
LucidVision
M. Bocci
M. Aissaoui
Alcatel-Lucent
January 2011
Segmented Pseudowire
Abstract
This document describes how to connect pseudowires (PWs) between
different Packet Switched Network (PSN) domains or between two or
more distinct PW control plane domains, where a control plane domain
uses a common control plane protocol or instance of that protocol for
a given PW. The different PW control plane domains may belong to
independent autonomous systems, or the PSN technology is
heterogeneous, or a PW might need to be aggregated at a specific PSN
point. The PW packet data units are simply switched from one PW to
another without changing the PW payload.
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/rfc6073.
Martini, et al. Standards Track [Page 1]
RFC 6073 Segmented Pseudowire January 2011
Copyright Notice
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Table of Contents
1. Introduction ....................................................4
2. Specification of Requirements ...................................5
3. Terminology .....................................................5
4. General Description .............................................6
5. PW Switching and Attachment Circuit Type ........................9
6. Applicability ...................................................9
7. MPLS-PW to MPLS-PW Switching ...................................10
7.1. Static Control Plane Switching ............................10
7.2. Two LDP Control Planes Using the Same FEC Type ............11
7.2.1. FEC 129 Active/Passive T-PE Election Procedure .....11
7.3. LDP Using FEC 128 to LDP Using the Generalized FEC 129 ....12
7.4. LDP SP-PE TLV .............................................12
7.4.1. PW Switching Point PE Sub-TLVs .....................14
7.4.2. Adaptation of Interface Parameters .................15
7.5. Group ID ..................................................16
7.6. PW Loop Detection .........................................16
8. MPLS-PW to L2TPv3-PW Control Plane Switching ...................16
8.1. Static MPLS and L2TPv3 PWs ................................17
8.2. Static MPLS PW and Dynamic L2TPv3 PW ......................17
Martini, et al. Standards Track [Page 2]
RFC 6073 Segmented Pseudowire January 2011
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