A Framework for Enhanced Virtual Private Networks (VPN+) Service
draft-dong-teas-enhanced-vpn-03
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2018-11-15
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draft-bryant-rtgwg-enhanced-vpn
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TEAS Working Group J. Dong
Internet-Draft S. Bryant
Intended status: Informational Huawei
Expires: May 19, 2019 Z. Li
China Mobile
T. Miyasaka
KDDI Corporation
Y. Lee
Huawei
November 15, 2018
A Framework for Enhanced Virtual Private Networks (VPN+) Service
draft-dong-teas-enhanced-vpn-03
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
enable VPNs to support the needs of new applications, particularly
applications that are associated with 5G services. Typically, VPN+
can be used to 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 May 19, 2019.
Copyright Notice
Copyright (c) 2018 IETF Trust and the persons identified as the
document authors. All rights reserved.
Dong, et al. Expires May 19, 2019 [Page 1]
Internet-Draft VPN+ Framework November 2018
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. Overview of the Requirements . . . . . . . . . . . . . . . . 5
2.1. Isolation between Virtual Networks . . . . . . . . . . . 5
2.1.1. A Pragmatic Approach to Isolation . . . . . . . . . . 6
2.2. Performance Guarantee . . . . . . . . . . . . . . . . . . 7
2.3. Integration . . . . . . . . . . . . . . . . . . . . . . . 9
2.3.1. Abstraction . . . . . . . . . . . . . . . . . . . . . 9
2.4. Dynamic Configuration . . . . . . . . . . . . . . . . . . 10
2.5. Customized Control . . . . . . . . . . . . . . . . . . . 10
2.6. Applicability . . . . . . . . . . . . . . . . . . . . . . 11
3. Architecture of Enhanced VPN . . . . . . . . . . . . . . . . 11
3.1. Layered Architecture . . . . . . . . . . . . . . . . . . 12
3.2. Multi-Point to Multi-Point . . . . . . . . . . . . . . . 14
3.3. Application Specific Network Types . . . . . . . . . . . 14
4. Candidate Technologies . . . . . . . . . . . . . . . . . . . 14
4.1. Underlay Packet and Frame-Based Data Planes . . . . . . . 15
4.1.1. FlexE . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1.2. Dedicated Queues . . . . . . . . . . . . . . . . . . 16
4.1.3. Time Sensitive Networking . . . . . . . . . . . . . . 16
4.2. Packet and Frame-Based Network Layer . . . . . . . . . . 16
4.2.1. Deterministic Networking . . . . . . . . . . . . . . 17
4.2.2. MPLS Traffic Engineering (MPLS-TE) . . . . . . . . . 17
4.2.3. Segment Routing . . . . . . . . . . . . . . . . . . . 17
4.3. Non-Packet Technologies . . . . . . . . . . . . . . . . . 19
4.4. Control Plane . . . . . . . . . . . . . . . . . . . . . . 20
4.5. Management Plane . . . . . . . . . . . . . . . . . . . . 20
4.6. Applicability of ACTN to Enhanced VPN . . . . . . . . . . 21
4.6.1. ACTN Used for VPN+ Delivery . . . . . . . . . . . . . 22
4.6.2. Enhanced VPN Features with ACTN . . . . . . . . . . . 24
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