IGP Extensions for Segment Routing based Enhanced VPN
draft-dong-lsr-sr-enhanced-vpn-02
|
| Document |
Type |
|
Active Internet-Draft (individual)
|
|
Last updated |
|
2019-11-04
|
|
Stream |
|
(None)
|
|
Intended RFC status |
|
(None)
|
|
Formats |
|
plain text
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)
|
LSR Working Group J. Dong
Internet-Draft Z. Hu
Intended status: Standards Track Huawei Technologies
Expires: May 7, 2020 S. Bryant
Futurewei Technologies
November 4, 2019
IGP Extensions for Segment Routing based Enhanced VPN
draft-dong-lsr-sr-enhanced-vpn-02
Abstract
Enhanced VPN (VPN+) is an enhancement to VPN services to support the
needs of new applications, particularly including the applications
that are associated with 5G services. These applications require
better isolation and have more stringent performance requirements
than that can be provided with traditional overlay VPNs. An enhanced
VPN may be used for 5G transport network slicing, and will also be of
use in more generic scenarios. This document specifies the IGP
mechanisms with necessary extensions to build a set of Segment
Routing (SR) based virtual networks with customized topology and
resource attributes in the network. These virtual networks could be
used as the underlay of enhanced VPN service. The proposed mechanism
is applicable to both Segment Routing with MPLS data plane (SR-MPLS)
and segment routing with IPv6 data plane (SRv6).
Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119 [RFC2119].
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."
Dong, et al. Expires May 7, 2020 [Page 1]
Internet-Draft IGP Extensions for SR VPN+ November 2019
This Internet-Draft will expire on May 7, 2020.
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
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 . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Transport Network Slice Definition Advertisement . . . . . . 3
3. Advertisement of Network Topology Attribute . . . . . . . . . 6
3.1. MTR based Topology Advertisement . . . . . . . . . . . . 6
3.2. Flex-Algo based Topology Advertisement . . . . . . . . . 6
4. Advertisement of Network Resource Attribute . . . . . . . . . 7
5. Security Considerations . . . . . . . . . . . . . . . . . . . 9
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 9
7. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 9
8. References . . . . . . . . . . . . . . . . . . . . . . . . . 10
8.1. Normative References . . . . . . . . . . . . . . . . . . 10
8.2. Informative References . . . . . . . . . . . . . . . . . 11
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 11
1. Introduction
Driven largely by needs arising from the 5G mobile network, the
concept of network slicing has gained traction. There is a need to
provide VPN service with enhanced isolation and performance
characteristics. Specifically, there is a need for a transport
network to provide a set of virtual networks, each of which provides
the tenant with a customized network topology, the required degree of
isolation and performance guarantee to meet the tenant's requirement.
These properties cannot be met with pure overlay networks, as they
require integration between the underlay and the overlay networks.
[I-D.ietf-teas-enhanced-vpn] specifies the framework of enhanced VPN
and describes the candidate component technologies in different
Show full document text