Internet Engineering Task Force (IETF) P. Pillay-Esnault
Request for Comments: 6565 Cisco Systems
Category: Standards Track P. Moyer
ISSN: 2070-1721 Pollere, Inc.
J. Doyle
Jeff Doyle and Associates
E. Ertekin
M. Lundberg
Booz Allen Hamilton
June 2012
OSPFv3 as a Provider Edge to Customer Edge (PE-CE) Routing Protocol
Abstract
Many Service Providers (SPs) offer Virtual Private Network (VPN)
services to their customers using a technique in which Customer Edge
(CE) routers are routing peers of Provider Edge (PE) routers. The
Border Gateway Protocol (BGP) is used to distribute the customer's
routes across the provider's IP backbone network, and Multiprotocol
Label Switching (MPLS) is used to tunnel customer packets across the
provider's backbone. Support currently exists for both IPv4 and IPv6
VPNs; however, only Open Shortest Path First version 2 (OSPFv2) as
PE-CE protocol is specified. This document extends those
specifications to support OSPF version 3 (OSPFv3) as a PE-CE routing
protocol. The OSPFv3 PE-CE functionality is identical to that of
OSPFv2 except for the differences described in this document.
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/rfc6565.
Pillay-Esnault, et al. Standards Track [Page 1]RFC 6565 OSPFv3 as a PE-CE Routing Protocol June 2012Copyright Notice
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Pillay-Esnault, et al. Standards Track [Page 2]RFC 6565 OSPFv3 as a PE-CE Routing Protocol June 2012Table of Contents
1. Introduction ....................................................4
2. Specification of Requirements ...................................4
3. Requirements ....................................................4
3.1. OSPFv3 Specificities .......................................5
4. BGP/OSPFv3 Interaction Procedures for PE Routers ................5
4.1. VRFs and OSPFv3 Instances ..................................5
4.1.1. Independent OSPFv3 Instances in PEs .................6
4.1.2. OSPFv3 Domain Identifier ............................6
4.2. OSPFv3 Areas ...............................................7
4.3. VRFs and Routes ............................................7
4.3.1. OSPFv3 Routes on PEs ................................8
4.3.2. VPN-IPv6 Routes Received from MP-BGP ................9
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