Networks Connecting to Hybrid Cloud DCs: Gap Analysis
draft-ietf-rtgwg-net2cloud-gap-analysis-07

Document Type Active Internet-Draft (rtgwg WG)
Last updated 2020-07-26
Replaces draft-dm-net2cloud-gap-analysis
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Network Working Group                                    L. Dunbar
Internet Draft                                           Futurewei
Intended status: Informational                            A. Malis
Expires: January 26, 2021                         Malis Consulting
                                                       C. Jacquenet
                                                             Orange
                                                      July 26, 2020

           Networks Connecting to Hybrid Cloud DCs: Gap Analysis
                draft-ietf-rtgwg-net2cloud-gap-analysis-07

Abstract

   This document analyzes the IETF routing area technical gaps that may
   affect the dynamic connection to workloads and applications hosted
   in hybrid Cloud Data Centers from enterprise premises.

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 January 26, 2009.

xxx, et al.             Expires January 26, 2021              [Page 1]
Internet-Draft          Net2Cloud Gap Analysis                July 2020

Copyright Notice

   Copyright (c) 2020 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...................................................3
   2. Conventions used in this document..............................3
   3. Gap Analysis for Accessing Cloud Resources.....................4
      3.1. Multiple PEs connecting to virtual CPEs in Cloud DCs......6
      3.2. Access Control for workloads in the Cloud DCs.............6
      3.3. NAT Traversal.............................................7
      3.4. BGP between PEs and remote CPEs via Internet..............7
      3.5. Multicast traffic from/to the remote edges................8
   4. Gap Analysis of Traffic over Multiple Underlay Networks........9
   5. Aggregating VPN paths and Internet paths......................10
      5.1. Control Plane for Cloud Access via Heterogeneous Networks11
      5.2. Using BGP UPDATE Messages................................12
         5.2.1. Lack ways to differentiate traffic in Cloud DCs.....12
         5.2.2. Miss attributes in Tunnel-Encap.....................12
      5.3. SECURE-EVPN/BGP-EDGE-DISCOVERY...........................12
      5.4. SECURE-L3VPN.............................................13
      5.5. Preventing attacks from Internet-facing ports............14
   6. Gap Summary...................................................14
   7. Manageability Considerations..................................15
   8. Security Considerations.......................................16
   9. IANA Considerations...........................................16
   10. References...................................................16
      10.1. Normative References....................................16
      10.2. Informative References..................................16
   11. Acknowledgments..............................................17

Dunbar, et al.         Expires January 26, 2021                [Page 2]
Internet-Draft          Net2Cloud Gap Analysis                July 2020

1. Introduction

   [Net2Cloud-Problem] describes the problems enterprises face today
   when interconnecting their branch offices with dynamic workloads
   hosted in third party data centers (a.k.a. Cloud DCs). In
   particular, this document analyzes the available routing protocols
   to identify whether there are any gaps that may impede such
   interconnection which may for example justify additional
   specification effort to define proper protocol extensions.
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