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A Framework for Layer 3 Provider-Provisioned Virtual Private Networks (PPVPNs) (RFC4110)

IP.com Disclosure Number: IPCOM000126388D
Original Publication Date: 2005-Jul-01
Included in the Prior Art Database: 2005-Jul-14

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

R. Callon: AUTHOR [+2]

Abstract

This document provides a framework for Layer 3 Provider-Provisioned Virtual Private Networks (PPVPNs). This framework is intended to aid in the standardization of protocols and mechanisms for support of layer 3 PPVPNs. It is the intent of this document to produce a coherent description of the significant technical issues that are important in the design of layer 3 PPVPN solutions. Selection of specific approaches, making choices regarding engineering tradeoffs, and detailed protocol specification, are outside of the scope of this framework document.

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Network Working Group                                          R. Callon
Request for Comments: 4110                              Juniper Networks
Category: Informational                                        M. Suzuki
                                                         NTT Corporation
                                                               July 2005


                        A Framework for Layer 3
         Provider-Provisioned Virtual Private Networks (PPVPNs)

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 (2005).

Abstract

   This document provides a framework for Layer 3 Provider-Provisioned
   Virtual Private Networks (PPVPNs).  This framework is intended to aid
   in the standardization of protocols and mechanisms for support of
   layer 3 PPVPNs.  It is the intent of this document to produce a
   coherent description of the significant technical issues that are
   important in the design of layer 3 PPVPN solutions.  Selection of
   specific approaches, making choices regarding engineering tradeoffs,
   and detailed protocol specification, are outside of the scope of this
   framework document.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
       1.1.  Objectives of the Document . . . . . . . . . . . . . . .  3
       1.2.  Overview of Virtual Private Networks . . . . . . . . . .  4
       1.3.  Types of VPNs. . . . . . . . . . . . . . . . . . . . . .  7
             1.3.1.  CE- vs PE-based VPNs . . . . . . . . . . . . . .  8
             1.3.2.  Types of PE-based VPNs . . . . . . . . . . . . .  9
             1.3.3.  Layer 3 PE-based VPNs. . . . . . . . . . . . . . 10
       1.4.  Scope of the Document. . . . . . . . . . . . . . . . . . 10
       1.5.  Terminology. . . . . . . . . . . . . . . . . . . . . . . 11
       1.6.  Acronyms . . . . . . . . . . . . . . . . . . . . . . . . 13
   2.  Reference Models . . . . . . . . . . . . . . . . . . . . . . . 14
       2.1.  Reference Model for Layer 3 PE-based VPN . . . . . . . . 14
             2.1.1.  Entities in the Reference Model. . . . . . . . . 16
             2.1.2.  Relationship Between CE and PE . . . . . . . . . 18

Callon & Suzuki              Informational                      [Page 1]
RFC 4110               A Framework for L3 PPVPNs               July 2005


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