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

The information below is for an old version of the document
Document Type Active Internet-Draft (individual)
Last updated 2018-08-15
Replaces draft-bryant-rtgwg-enhanced-vpn
Replaced by draft-ietf-teas-enhanced-vpn
Stream (None)
Intended RFC status (None)
Formats pdf htmlized bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
TEAS Working Group                                               J. Dong
Internet-Draft                                                 S. Bryant
Intended status: Informational                                    Huawei
Expires: February 16, 2019                                         Z. Li
                                                            China Mobile
                                                             T. Miyasaka
                                                        KDDI Corporation
                                                         August 15, 2018

        A Framework for Enhanced Virtual Private Networks (VPN+)
                    draft-dong-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 VPN (VPN+) service.  The purpose is to enable virtual
   private networks (VPNs) to support the needs of new applications,
   particularly applications that are associated with 5G services.  A
   network enhanced with these properties can form the underpinning of
   network slicing, but will also be of use in its own right.

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 February 16, 2019.

Copyright Notice

   Copyright (c) 2018 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

Dong, et al.            Expires February 16, 2019               [Page 1]
Internet-Draft                    VPN+                       August 2018

   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.  Requirements Language . . . . . . . . . . . . . . . . . . . .   4
   3.  Overview of the Requirements  . . . . . . . . . . . . . . . .   4
     3.1.  Isolation between Virtual Networks  . . . . . . . . . . .   4
       3.1.1.  A Pragmatic Approach to Isolation . . . . . . . . . .   5
     3.2.  Performance Guarantee . . . . . . . . . . . . . . . . . .   6
     3.3.  Integration . . . . . . . . . . . . . . . . . . . . . . .   8
     3.4.  Dynamic Configuration . . . . . . . . . . . . . . . . . .   8
     3.5.  Customized Control  . . . . . . . . . . . . . . . . . . .   9
     3.6.  Applicability . . . . . . . . . . . . . . . . . . . . . .   9
   4.  Architecture of Enhanced VPN  . . . . . . . . . . . . . . . .   9
     4.1.  Layered Architecture  . . . . . . . . . . . . . . . . . .  11
     4.2.  Multi-Point to Multi-Point  . . . . . . . . . . . . . . .  12
     4.3.  Application Specific Network Types  . . . . . . . . . . .  12
   5.  Candidate Technologies  . . . . . . . . . . . . . . . . . . .  13
     5.1.  Underlay Data plane . . . . . . . . . . . . . . . . . . .  14
       5.1.1.  FlexE . . . . . . . . . . . . . . . . . . . . . . . .  14
       5.1.2.  Dedicated Queues  . . . . . . . . . . . . . . . . . .  14
       5.1.3.  Time Sensitive Networking . . . . . . . . . . . . . .  15
     5.2.  Network Layer . . . . . . . . . . . . . . . . . . . . . .  15
       5.2.1.  Deterministic Networking  . . . . . . . . . . . . . .  15
       5.2.2.  MPLS Traffic Engineering (MPLS-TE)  . . . . . . . . .  16
       5.2.3.  Segment Routing . . . . . . . . . . . . . . . . . . .  16
     5.3.  Control Plane . . . . . . . . . . . . . . . . . . . . . .  19
   6.  Scalability Considerations  . . . . . . . . . . . . . . . . .  20
     6.1.  Maximum Stack Depth of SR . . . . . . . . . . . . . . . .  21
     6.2.  RSVP Scalability  . . . . . . . . . . . . . . . . . . . .  21
   7.  OAM Considerations  . . . . . . . . . . . . . . . . . . . . .  21
   8.  Enhanced Resiliency . . . . . . . . . . . . . . . . . . . . .  22
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  23
   10. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  23
Show full document text