Internet Engineering Task Force (IETF) L. Martini
Request for Comments: 7275 S. Salam
Category: Standards Track A. Sajassi
ISSN: 2070-1721 Cisco
M. Bocci
Alcatel-Lucent
S. Matsushima
Softbank Telecom
T. Nadeau
Brocade
June 2014
Inter-Chassis Communication Protocol for
Layer 2 Virtual Private Network (L2VPN) Provider Edge (PE) Redundancy
Abstract
This document specifies an Inter-Chassis Communication Protocol
(ICCP) that enables Provider Edge (PE) device redundancy for Virtual
Private Wire Service (VPWS) and Virtual Private LAN Service (VPLS)
applications. The protocol runs within a set of two or more PEs,
forming a Redundancy Group, for the purpose of synchronizing data
among the systems. It accommodates multi-chassis attachment circuit
redundancy mechanisms as well as pseudowire redundancy mechanisms.
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/rfc7275.
Martini, et al. Standards Track [Page 1]RFC 7275 ICCP for L2VPN PE Redundancy June 2014Copyright Notice
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Martini, et al. Standards Track [Page 2]RFC 7275 ICCP for L2VPN PE Redundancy June 2014Table of Contents
1. Introduction ....................................................5
2. Specification of Requirements ...................................5
3. ICCP Overview ...................................................5
3.1. Redundancy Model and Topology ..............................5
3.2. ICCP Interconnect Scenarios ................................7
3.2.1. Co-located Dedicated Interconnect ...................7
3.2.2. Co-located Shared Interconnect ......................8
3.2.3. Geo-redundant Dedicated Interconnect ................8
3.2.4. Geo-redundant Shared Interconnect ...................9
3.3. ICCP Requirements .........................................10
4. ICC LDP Protocol Extension Specification .......................11
4.1. LDP ICCP Capability Advertisement .........................12
4.2. RG Membership Management ..................................12
4.2.1. ICCP Connection State Machine ......................13
4.3. Redundant Object Identification ...........................17
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