Gap Analysis of Dynamic Networks to Hybrid Cloud DCs
draft-ietf-rtgwg-net2cloud-gap-analysis-03

Document Type Active Internet-Draft (rtgwg WG)
Last updated 2019-11-01
Replaces draft-dm-net2cloud-gap-analysis
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Network Working Group                                         L. Dunbar
Internet Draft                                                Futurewei
Intended status: Informational                                 A. Malis
Expires: May 1, 2020                                        Independent
                                                           C. Jacquenet
                                                                 Orange
                                                       November 1, 2019

           Gap Analysis of Dynamic Networks to Hybrid Cloud DCs
                draft-ietf-rtgwg-net2cloud-gap-analysis-03

Abstract

   This document analyzes the technological gaps when using SDWAN to
   dynamically interconnect workloads and applications hosted in
            rd        various 3  party cloud data centers.

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on May 1, 2009.

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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
   (http://trustee.ietf.org/license-info) in effect on the date of
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Table of Contents

   1. Introduction...................................................2
   2. Conventions used in this document..............................3
   3. Gap Analysis of C-PEs WAN Port Management......................4
   4. Aggregating VPN paths and Internet paths.......................6
      4.1. Key Control Plane Components of SDWAN Overlay.............7
      4.2. Using BGP UPDATE Messages.................................8
      4.3. SECURE-L3VPN/EVPN.........................................9
      4.4. Preventing attacks from Internet-facing ports............10
   5. C-PEs not directly connected to VPN PEs.......................11
      5.1. Floating PEs to connect to Remote CPEs...................13
      5.2. NAT Traversal............................................13
      5.3. Complexity of using BGP between PEs and remote CPEs via
      Internet......................................................13
      5.4. Designated Forwarder to the remote edges.................14
      5.5. Traffic Path Management..................................15
   6. Manageability Considerations..................................15
   7. Security Considerations.......................................15
   8. IANA Considerations...........................................16
   9. References....................................................16
      9.1. Normative References.....................................16
      9.2. Informative References...................................16
   10. Acknowledgments..............................................17

1. Introduction

   [Net2Cloud-Problem] describes the problems that enterprises face
   today in transitioning their IT infrastructure to support digital

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Internet-Draft          Net2Cloud Gap Analysis            November 2019

   economy, such as connecting enterprises' branch offices to dynamic
   workloads in different Cloud DCs.

   This document analyzes the technological gaps to interconnect
   dynamic workloads & apps hosted in cloud data centers that the
   enterprise's VPN service provider may not own/operate or may be
   unable to provide the enterprise with the required connectivity to
   access such locations. When VPN service providers have insufficient
   bandwidth to reach a location, SDWAN techniques can be used to
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