SR For SDWAN: VPN with Underlay SLA
draft-dukes-spring-sr-for-sdwan-03
Network Working Group D. Dukes, Ed.
Internet-Draft C. Filsfils
Intended status: Standards Track Cisco Systems
Expires: August 26, 2021 G. Dawra
LinkedIn
X. Xu
Alibaba
D. Voyer
Bell Canada
P. Camarillo
F. Clad
Cisco Systems
S. Salsano
Univ. of Rome Tor Vergata
February 22, 2021
SR For SDWAN: VPN with Underlay SLA
draft-dukes-spring-sr-for-sdwan-03
Abstract
This document describes how SR enables underlay Service Level
Agreements (SLA) to a VPN with scale and security while ensuring
service opacity. This solution applies to Over-The-Top VPN (OTT VPN)
and Software-Defined WAN (SDWAN).
Status of This Memo
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material or to cite them other than as "work in progress."
This Internet-Draft will expire on August 26, 2021.
Dukes, et al. Expires August 26, 2021 [Page 1]
Internet-Draft SR For SDWAN: VPN with Underlay SLA February 2021
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Requirements Notation . . . . . . . . . . . . . . . . . . . . 3
3. Single Provider . . . . . . . . . . . . . . . . . . . . . . . 3
3.1. Directly Connected CE to PE . . . . . . . . . . . . . . . 3
3.2. Best-effort Underlay Transport . . . . . . . . . . . . . 5
3.3. SR for Underlay SLA Differentiation . . . . . . . . . . . 6
3.4. Accounting . . . . . . . . . . . . . . . . . . . . . . . 8
3.5. Security . . . . . . . . . . . . . . . . . . . . . . . . 8
3.6. Remotely Connected (to PE) . . . . . . . . . . . . . . . 8
4. Multiple Providers . . . . . . . . . . . . . . . . . . . . . 8
5. Control Plane . . . . . . . . . . . . . . . . . . . . . . . . 9
6. Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6.1. Scale . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6.2. Privacy . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.3. Flexible Billing . . . . . . . . . . . . . . . . . . . . 12
6.4. Security . . . . . . . . . . . . . . . . . . . . . . . . 12
7. Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7.1. Single Provider Example Using End.BM With an MPLS Core . 12
7.1.1. Accounting . . . . . . . . . . . . . . . . . . . . . 14
7.1.2. Security . . . . . . . . . . . . . . . . . . . . . . 14
7.2. Single Provider Example Using MPLS From CE to PE for BSID 14
7.3. Single Provider Example Using SRMPLS Over UDP For CE to
PE Not Directly Connected Over Internet . . . . . . . . . 14
7.3.1. Accounting . . . . . . . . . . . . . . . . . . . . . 15
7.3.2. Security . . . . . . . . . . . . . . . . . . . . . . 15
8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 15
9. Security Considerations . . . . . . . . . . . . . . . . . . . 15
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