A Framework for Enhanced Virtual Private Networks (VPN+) Service
draft-ietf-teas-enhanced-vpn-01

Document Type Active Internet-Draft (teas WG)
Last updated 2019-02-14
Replaces draft-dong-teas-enhanced-vpn
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TEAS Working Group                                               J. Dong
Internet-Draft                                                 S. Bryant
Intended status: Informational                                    Huawei
Expires: August 18, 2019                                           Z. Li
                                                            China Mobile
                                                             T. Miyasaka
                                                        KDDI Corporation
                                                                  Y. Lee
                                                                  Huawei
                                                       February 14, 2019

    A Framework for Enhanced Virtual Private Networks (VPN+) Service
                    draft-ietf-teas-enhanced-vpn-01

Abstract

   This document specifies a framework for using existing, modified and
   potential new networking technologies as components to provide an
   Enhanced Virtual Private Networks (VPN+) service.  The purpose 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 technologies and adds features that specific
   services require over and above traditional VPNs.

   Typically, VPN+ will be used to form the underpinning of network
   slicing, but could also be of use in its own right.  It is not
   envisaged that large numbers of VPN+ instances will be deployed in a
   network and, in particular, it is not intended that all 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
   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 18, 2019.

Dong, et al.             Expires August 18, 2019                [Page 1]
Internet-Draft               VPN+ Framework                February 2019

Copyright Notice

   Copyright (c) 2019 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
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   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.  Overview of the Requirements  . . . . . . . . . . . . . . . .   5
     2.1.  Isolation between Virtual Networks  . . . . . . . . . . .   5
       2.1.1.  A Pragmatic Approach to Isolation . . . . . . . . . .   7
     2.2.  Performance Guarantee . . . . . . . . . . . . . . . . . .   8
     2.3.  Integration . . . . . . . . . . . . . . . . . . . . . . .   9
       2.3.1.  Abstraction . . . . . . . . . . . . . . . . . . . . .  10
     2.4.  Dynamic Configuration . . . . . . . . . . . . . . . . . .  10
     2.5.  Customized Control  . . . . . . . . . . . . . . . . . . .  11
     2.6.  Applicability . . . . . . . . . . . . . . . . . . . . . .  11
   3.  Architecture of Enhanced VPN  . . . . . . . . . . . . . . . .  11
     3.1.  Layered Architecture  . . . . . . . . . . . . . . . . . .  13
     3.2.  Multi-Point to Multi-Point  . . . . . . . . . . . . . . .  14
     3.3.  Application Specific Network Types  . . . . . . . . . . .  14
     3.4.  Scaling Considerations  . . . . . . . . . . . . . . . . .  14
   4.  Candidate Technologies  . . . . . . . . . . . . . . . . . . .  15
     4.1.  Underlay Packet and Frame-Based Data Planes . . . . . . .  15
       4.1.1.  FlexE . . . . . . . . . . . . . . . . . . . . . . . .  16
       4.1.2.  Dedicated Queues  . . . . . . . . . . . . . . . . . .  16
       4.1.3.  Time Sensitive Networking . . . . . . . . . . . . . .  17
     4.2.  Packet and Frame-Based Network Layer  . . . . . . . . . .  17
       4.2.1.  Deterministic Networking  . . . . . . . . . . . . . .  17
       4.2.2.  MPLS Traffic Engineering (MPLS-TE)  . . . . . . . . .  18
       4.2.3.  Segment Routing . . . . . . . . . . . . . . . . . . .  18
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