Virtual Machine Mobility Solutions for L2 and L3 Overlay Networks
draft-ietf-nvo3-vmm-16

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Network Working Group                                   L. Dunbar
Internet Draft                                           Futurewei
Intended status: Informational                         B. Sarikaya
Expires: December 17, 2020                     Denpel Informatique
                                                   B.Khasnabish
                                                    Independent
                                                     T. Herbert
                                                          Intel
                                                     S. Dikshit
                                                      Aruba-HPE
                                                     June 17, 2020

     Virtual Machine Mobility Solutions for L2 and L3 Overlay
                  Networks draft-ietf-nvo3-vmm-16

Abstract

   This document describes virtual machine (VM) mobility
   solutions commonly used in data centers built with an overlay
   network. This document is intended for describing the
   solutions and the impact of moving VMs, or applications, from
   one rack to another connected by the overlay network.

   For layer 2, it is based on using an NVA (Network
   Virtualization Authority) to NVE (Network Virtualization
   Edge) protocol to update ARP (Address Resolution Protocol)
   tables or neighbor cache entries after a VM moves from an old
   NVE to a new NVE.  For Layer 3, it is based on address and
   connection migration after the move.

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.

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   This Internet-Draft will expire on December 17, 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 publication of this document. Please review these
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   extracted from this document must include Simplified BSD
   License text as described in Section 4.e of the Trust Legal
   Provisions and are provided without warranty as described in
   the Simplified BSD License.

Table of Contents

   1. Introduction................................................ 3
   2. Conventions used in this document........................... 4
   3. Requirements................................................ 5

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   4. Overview of the VM Mobility Solutions....................... 6
      4.1. Inter-VN and External Communication.................... 6
      4.2. VM Migration in a Layer 2 Network...................... 7
      4.3. VM Migration in Layer-3 Network........................ 8
      4.4. Address and Connection Management in VM Migration...... 9
   5. Handling Packets in Flight................................. 10
   6. Moving Local State of VM................................... 11
   7. Handling of Hot, Warm and Cold VM Mobility................. 12
   8. Other Options.............................................. 13
   9. VM Lifecycle Management.................................... 13
   10. Security Considerations................................... 14
   11. IANA Considerations....................................... 15
   12. Acknowledgments........................................... 15
   13. References................................................ 15
      13.1. Normative References................................. 15
      13.2. Informative References............................... 16