Carrying Virtual Transport Network (VTN) Identifier in IPv6 Extensison Header for Enhanced VPN
draft-dong-6man-enhanced-vpn-vtn-id-00
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Jie Dong
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Zhenbin Li
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2020-02-10
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6MAN working group J. Dong
Internet-Draft Z. Li
Intended status: Standard Track Huawei
Expires: August 2020 February 10, 2020
Carrying Virtual Transport Network (VTN) Identifier in IPv6
Extensison Header for Enhanced VPN
draft-dong-6man-enhanced-vpn-vtn-id-00
Abstract
This document proposes a new option type to carry virtual transport
network identifier (VTN ID) in the IPv6 extensions headers to
identify the virtual transport network the packet belongs to. The
procedure of processing the VTN option is also specified. This
provides a scalable solution for data plane encapsulation of
enhanced VPN (VPN+) as described in I-D.ietf-teas-enhanced-vpn. One
typical use case of VPN+ is to provide transport network slicing in
5G, while it could also be used in more general cases.
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 10, 2020.
Copyright Notice
Copyright (c) 2020 IETF Trust and the persons identified as the
document authors. All rights reserved.
Dong, et al. Expires August 10, 2020 [Page 1]
Internet-Draft IPv6 VTN Option February 2020
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
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Table of Contents
1. Introduction ................................................ 2
2. Requirements Language ....................................... 3
3. New IPv6 Extension Header Option for VTN .................... 3
4. Procedures .................................................. 4
4.1. VTN Option Insertion ................................... 4
4.2. VTN based Packet Forwarding ............................ 5
5. Security Considerations ..................................... 5
IANA Considerations ............................................ 5
Contributors ................................................... 6
Acknowledgments ................................................ 6
References ..................................................... 6
Normative References ........................................ 6
Informative References ...................................... 6
Authors' Addresses ............................................. 7
1. Introduction
Virtual private networks (VPNs) have served the industry well as a
means of providing different groups of users with logically isolated
connectivity over a common network. Some customers may request a
connectivity services with advanced characteristics such as complete
isolation from other services or guaranteed performance. These
services are "enhanced VPNs" (known as VPN+). [I-D.ietf-teas-
enhanced-vpn] describes the framework and candidate component
technologies for providing enhanced VPN services. One typical use
case of VPN+ is to provide transport network slicing in 5G, while it
could also be used in more general cases.
The enhanced properties of VPN+ require tighter coordination and
integration between the underlay network resources and the overlay
network. VPN+ service is built on a Virtual Transport Network (VTN)
which has a customized network topology and a set of dedicated or
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