Enhanced Virtual Private Networks (VPN+)
draft-dong-teas-enhanced-vpn-00

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Last updated 2018-07-02
Replaced by draft-ietf-teas-enhanced-vpn
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Routing Area Working Group                                       J. Dong
Internet-Draft                                                 S. Bryant
Intended status: Informational                                    Huawei
Expires: January 3, 2019                                           Z. Li
                                                            China Mobile
                                                             T. Miyasaka
                                                        KDDI Corporation
                                                            July 2, 2018

                Enhanced Virtual Private Networks (VPN+)
                    draft-dong-teas-enhanced-vpn-00

Abstract

   This draft describes a number of enhancements that need to be made to
   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 may form the
   underpin of network slicing, but will also be of use in its own
   right.

   Editor's Note: This is draft-bryant-rtgwg-enhanced-vpn moved to the
   TEAS WG.

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
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   This Internet-Draft will expire on January 3, 2019.

Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Dong, et al.             Expires January 3, 2019                [Page 1]
Internet-Draft                    VPN+                         July 2018

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Requirements Language . . . . . . . . . . . . . . . . . . . .   4
   3.  Overview of the Requirements  . . . . . . . . . . . . . . . .   4
     3.1.  Isolation between Virtual Networks  . . . . . . . . . . .   4
     3.2.  Diverse Performance Guarantees  . . . . . . . . . . . . .   6
     3.3.  A Pragmatic Approach to Isolation . . . . . . . . . . . .   7
     3.4.  Integration . . . . . . . . . . . . . . . . . . . . . . .   8
     3.5.  Dynamic Configuration . . . . . . . . . . . . . . . . . .   9
     3.6.  Customized Control Plane  . . . . . . . . . . . . . . . .   9
   4.  Applicability . . . . . . . . . . . . . . . . . . . . . . . .  10
   5.  Architecture and Components of Enhanced VPN . . . . . . . . .  10
     5.1.  Communications Layering . . . . . . . . . . . . . . . . .  10
     5.2.  Multi-Point to Multi-point  . . . . . . . . . . . . . . .  13
     5.3.  Candidate Underlay Technologies . . . . . . . . . . . . .  13
       5.3.1.  FlexE . . . . . . . . . . . . . . . . . . . . . . . .  14
       5.3.2.  Dedicated Queues  . . . . . . . . . . . . . . . . . .  14
       5.3.3.  Time Sensitive Networking . . . . . . . . . . . . . .  15
       5.3.4.  Deterministic Networking  . . . . . . . . . . . . . .  15
       5.3.5.  MPLS Traffic Engineering (MPLS-TE)  . . . . . . . . .  15
       5.3.6.  Segment Routing . . . . . . . . . . . . . . . . . . .  16
     5.4.  Control Plane Considerations  . . . . . . . . . . . . . .  19
     5.5.  Application Specific Network Types  . . . . . . . . . . .  19
     5.6.  Integration with Service Functions  . . . . . . . . . . .  20
   6.  Scalability Considerations  . . . . . . . . . . . . . . . . .  20
     6.1.  Maximum Stack Depth . . . . . . . . . . . . . . . . . . .  21
     6.2.  RSVP Scalability  . . . . . . . . . . . . . . . . . . . .  21
   7.  OAM and Instrumentation . . . . . . . . . . . . . . . . . . .  21
   8.  Enhanced Resiliency . . . . . . . . . . . . . . . . . . . . .  22
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  23
   10. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  23
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  23
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  23
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