BGP Extension for SDWAN Overlay Networks
draft-dunbar-idr-bgp-sdwan-overlay-ext-03
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Network Working Group L. Dunbar
Internet Draft H. Wang
Intended status: Standards Track W. Hao
Expires: January 2019 Huawei
November 7, 2018
BGP Extension for SDWAN Overlay Networks
draft-dunbar-idr-bgp-sdwan-overlay-ext-03
Abstract
The document defines a new BGP SAFI with a new NLRI in order to
advertise a SD-WAN node's properties with other SD-WAN nodes through
third party untrusted networks. The goal is for SD-WAN network to
scale; enabling SD-WAN overlay among large number of SD-WAN nodes
with minimal provisioning, and allow services to be carried by
different SD-WAN transport networks based on user specified
criteria.
A "SD-WAN" network consists of many segments of IPsec tunnels
between SD-WAN nodes. An "end-point" is referring to a port on a SD-
WAN node throughout this document.
This document specifies new sub-TLVs for the SD-WAN End Point's
Attributes.
Status of this Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79. This document may not be modified,
and derivative works of it may not be created, except to publish it
as an RFC and to translate it into languages other than English.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF), its areas, and its working groups. Note that
other groups may also distribute working documents as Internet-
Drafts.
xxx, et al. Expires May 7, 2019 [Page 1]
Internet-Draft BGP-SDWAN-Overlay-Ext November 2018
Internet-Drafts are draft documents valid for a maximum of six
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This Internet-Draft will expire on May 7, 2009.
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
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
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Table of Contents
1. Introduction...................................................3
2. Conventions used in this document..............................3
3. Key Characteristics of SD-WAN Overlay Network..................4
4. Overview of the BGP Extension for SD-WAN.......................8
5. SD-WAN Over Tunnel NLRI Format................................10
6. SD-WAN Tunnel Encapsulation Attribute sub-TLV:................10
6.1. IPsec SA sub-TLV.........................................11
6.2. EncapsExt sub-TLV........................................13
7. SD-WAN Tunnel Advertisement Method:...........................14
8. Manageability Considerations..................................15
9. Security Considerations.......................................15
Dunbar, et al. Expires Jan 2019 [Page 2]
Internet-Draft BGP-SDWAN-Overlay-Ext November 2018
10. IANA Considerations..........................................15
11. References...................................................16
11.1. Normative References....................................16
11.2. Informative References..................................16
12. Acknowledgments..............................................17
1. Introduction
The document defines a new BGP SAFI with a new NLRI in order to
advertise a SD-WAN node's properties with other SD-WAN nodes through
third party untrusted networks. The goal is for SD-WAN network to
scale; enabling SD-WAN overlay among large number of SD-WAN nodes
with few provisioning needed, and allow services to be carried by
different SD-WAN transport networks based on user specified
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