A Framework for Enhanced Virtual Private Network (VPN+) Services
draft-ietf-teas-enhanced-vpn-07

Document Type Active Internet-Draft (teas WG)
Authors Jie Dong  , Stewart Bryant  , Zhenqiang Li  , Takuya Miyasaka  , Young Lee 
Last updated 2021-02-09
Replaces draft-dong-teas-enhanced-vpn
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TEAS Working Group                                               J. Dong
Internet-Draft                                                    Huawei
Intended status: Informational                                 S. Bryant
Expires: August 14, 2021                                       Futurewei
                                                                   Z. Li
                                                            China Mobile
                                                             T. Miyasaka
                                                        KDDI Corporation
                                                                  Y. Lee
                                                                 Samsung
                                                       February 10, 2021

    A Framework for Enhanced Virtual Private Network (VPN+) Services
                    draft-ietf-teas-enhanced-vpn-07

Abstract

   This document describes the framework for Enhanced Virtual Private
   Network (VPN+) services.  The purpose of enhanced VPNs is to support
   the needs of new applications, particularly applications that are
   associated with 5G services, by utilizing an approach that is based
   on existing VPN and Traffic Engineering (TE) technologies and adds
   characteristics that specific services require over and above
   traditional VPNs.

   Typically, VPN+ will be used to underpin network slicing, but could
   also be of use in its own right providing enhanced connectivity
   services between customer sites.

   It is envisaged that enhanced VPNs will be delivered using a
   combination of existing, modified, and new networking technologies.
   This document provides an overview of relevant technologies and
   identifies some areas for potential new work.

   Compared to traditional VPNs, it is not envisaged that large numbers
   of VPN+ services will be deployed in a network.  In other word, it is
   not intended that all existing VPNs supported by a network will use
   VPN+ techniques.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute

Dong, et al.             Expires August 14, 2021                [Page 1]
Internet-Draft               VPN+ Framework                February 2021

   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on August 14, 2021.

Copyright Notice

   Copyright (c) 2021 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   6
   3.  Overview of the Requirements  . . . . . . . . . . . . . . . .   6
     3.1.  Performance Guarantees  . . . . . . . . . . . . . . . . .   6
     3.2.  Isolation between Enhanced VPN Services . . . . . . . . .   8
       3.2.1.  A Pragmatic Approach to Isolation . . . . . . . . . .  10
     3.3.  Integration . . . . . . . . . . . . . . . . . . . . . . .  11
       3.3.1.  Abstraction . . . . . . . . . . . . . . . . . . . . .  11
     3.4.  Dynamic Changes . . . . . . . . . . . . . . . . . . . . .  12
     3.5.  Customized Control  . . . . . . . . . . . . . . . . . . .  12
     3.6.  Applicability . . . . . . . . . . . . . . . . . . . . . .  13
     3.7.  Inter-Domain and Inter-Layer Network  . . . . . . . . . .  13
   4.  Architecture of Enhanced VPNs . . . . . . . . . . . . . . . .  14
     4.1.  Layered Architecture  . . . . . . . . . . . . . . . . . .  15
     4.2.  Multi-Point to Multi-Point (MP2MP) Connectivity . . . . .  18
     4.3.  Application Specific Data Types . . . . . . . . . . . . .  18
     4.4.  Scaling Considerations  . . . . . . . . . . . . . . . . .  18
   5.  Candidate Technologies  . . . . . . . . . . . . . . . . . . .  19
     5.1.  Layer-Two Data Plane  . . . . . . . . . . . . . . . . . .  19
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