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A Core MPLS IP VPN Architecture (RFC2917)

IP.com Disclosure Number: IPCOM000005099D
Original Publication Date: 2000-Sep-01
Included in the Prior Art Database: 2005-May-17
Document File: 17 page(s) / 35K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

K. Muthukrishnan: AUTHOR [+2]

Abstract

This memo presents an approach for building core Virtual Private Network (VPN) services in a service provider's MPLS backbone. This approach uses Multiprotocol Label Switching (MPLS) running in the backbone to provide premium services in addition to best effort services. The central vision is for the service provider to provide a virtual router service to their customers. The keystones of this architecture are ease of configuration, user security, network security, dynamic neighbor discovery, scaling and the use of existing routing protocols as they exist today without any modifications.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 8% of the total text.

Network Working Group                                    K. Muthukrishnan
Request for Comments: 2917                            Lucent Technologies
Category: Informational                                          A. Malis
                                                    Vivace Networks, Inc.
                                                           September 2000


                    A Core MPLS IP VPN Architecture

Status of this Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard of any kind.  Distribution of this
   memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2000).  All Rights Reserved.

Abstract

   This memo presents an approach for building core Virtual Private
   Network (VPN) services in a service provider's MPLS backbone.  This
   approach uses Multiprotocol Label Switching (MPLS) running in the
   backbone to provide premium services in addition to best effort
   services. The central vision is for the service provider to provide a
   virtual router service to their customers. The keystones of this
   architecture are ease of configuration, user security, network
   security, dynamic neighbor discovery, scaling and the use of existing
   routing protocols as they exist today without any modifications.

1. Acronyms

        ARP     Address Resolution Protocol
        CE      Customer Edge router
        LSP     Label Switched Path
        PNA     Private Network Administrator
        SLA     Service Level Agreement
        SP      Service Provider
        SPED    Service Provider Edge Device
        SPNA    SP Network Administrator
        VMA     VPN Multicast Address
        VPNID   VPN Identifier
        VR      Virtual Router
        VRC     Virtual Router Console


Muthukrishnan & Malis        Informational                      [Page 1]
RFC 2917                       Core VPNs                  September 2000


2. Introduction

   This memo describes an approach for building IP VPN services out of
   the backbone of the SP's network. Broadly speaking, two possible
   approaches present themselves: the overlay model and the virtual
   router approach. The overlay model is based on overloading some
   semantic(s) of existing routing protocols to carry reachability
   information.  In this document, we focus on the virtual router
   service.

   The approach presented here does not depend on any modifications of
   any existing routing protocols. Neighbor discovery is aided by the
...