Encapsulating IPsec ESP in UDP for Load-balancing
draft-xu-ipsecme-esp-in-udp-lb-07

Document Type Active Internet-Draft (individual)
Authors Xiaohu Xu  , Shraddha Hegde  , Boris Pismenny  , Dacheng Zhang  , Liang Xia 
Last updated 2020-12-22
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Network Working Group                                              X. Xu
Internet-Draft                                              Alibaba, Inc
Intended status: Standards Track                                S. Hegde
Expires: June 23, 2021                                           Juniper
                                                             B. Pismenny
                                                                  Nvidia
                                                                D. Zhang
                                                                  L. Xia
                                                                  Huawei
                                                       December 20, 2020

           Encapsulating IPsec ESP in UDP for Load-balancing
                   draft-xu-ipsecme-esp-in-udp-lb-07

Abstract

   IPsec Virtual Private Network (VPN) is widely used by enterprises to
   interconnect their geographical dispersed branch office locations
   across the Wide Area Network (WAN) or the Internet, especially in the
   Software-Defined-WAN (SD-WAN) era.  In addition, IPsec is also
   increasingly used by cloud providers to encrypt IP traffic traversing
   data center networks and data center interconnect WANs so as to meet
   the security and compliance requirements, especially in financial
   cloud and governmental cloud environments.  To fully utilize the
   bandwidth available in the data center network, the data center
   interconnect WAN or the Internet, load balancing of IPsec traffic
   over Equal Cost Multi-Path (ECMP) and/or Link Aggregation Group (LAG)
   is much attractive to those enterprises and cloud providers.  This
   document defines a method to encapsulate IPsec Encapsulating Security
   Payload (ESP) packets over UDP tunnels for improving load-balancing
   of IPsec ESP traffic.

Status of This Memo

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Xu, et al.                Expires June 23, 2021                 [Page 1]
Internet-Draft Encapsulating ESP in UDP for Load-balancing December 2020

   This Internet-Draft will expire on June 23, 2021.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Encapsulation in UDP  . . . . . . . . . . . . . . . . . . . .   4
   4.  Processing Procedures . . . . . . . . . . . . . . . . . . . .   5
   5.  Congestion Considerations . . . . . . . . . . . . . . . . . .   6
   6.  Applicability Statements  . . . . . . . . . . . . . . . . . .   6
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   6
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   6
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .   6
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .   6
     10.1.  Normative References . . . . . . . . . . . . . . . . . .   6
     10.2.  Informative References . . . . . . . . . . . . . . . . .   7
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   7

1.  Introduction

   IPsec Virtual Private Network (VPN) is widely used by enterprises to
   interconnect their geographical dispersed branch office locations
   across the Wide Area Network (WAN) or the Internet, especially in the
   Software-Defined-WAN (SD-WAN) era.  In addition, IPsec is also
   increasingly used by cloud providers to encrypt IP traffic traversing
   data center networks and data center interconnect WANs so as to meet
   the security and compliance requirements, especially in financial
   cloud and governmental cloud environments.  To fully utilize the
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