Virtual Machine Mobility Solutions for L2 and L3 Overlay Networks
draft-ietf-nvo3-vmm-06

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Network Working Group                                      L. Dunbar
Internet Draft                                             Futurewei
Intended status: Informational                           B. Sarikaya
Expires: May 18, 2020                             Denpel Informatique
                                                       B.Khasnabish
                                                        Independent
                                                          T. Herbert
                                                               Intel
                                                          S. Dikshit
                                                           Aruba-HPE
                                                   November 18, 2019

     Virtual Machine Mobility Solutions for L2 and L3 Overlay Networks
                          draft-ietf-nvo3-vmm-06

Abstract

   This document discusses Virtual Machine (VM) mobility solutions that
   are commonly used in overlay-based Data Center (DC) networks. The
   objective is to describe the solutions and their impact on moving
   VMs (and applications) from one rack to another connected by the
   Overlay networks.

   For layer 2 networks, it is based on using an NVA (Network
   Virtualization Authority) - NVE (Network Virtualization Edge)
   protocol to update the ARP (Address Resolution Protocol) table or
   neighbor cache entries after a VM (virtual machine) moves from an
   Old NVE to a New NVE.  For Layer 3, it is based on migration of
   address and connection  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.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF), its areas, and its working groups.  Note that

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   other groups may also distribute working documents as Internet-
   Drafts.

   Internet-Drafts are draft documents valid for a maximum of six
   months and may be updated, replaced, or obsoleted by other documents
   at any time.  It is inappropriate to use Internet-Drafts as
   reference material or to cite them other than as "work in progress."

   The list of current Internet-Drafts can be accessed at
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   The list of Internet-Draft Shadow Directories can be accessed at
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   This Internet-Draft will expire on May 10, 2020.

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
   publication of this document. Please review these documents
   carefully, as they describe your rights and restrictions with
   respect to this document. Code Components 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
   4. Overview of the VM Mobility Solutions..........................5
      4.1. VM Migration in Layer-2 Network...........................5
      4.2. Task Migration in Layer-3 Network.........................7
         4.2.1. Address and Connection Migration in Task Migration...8
   5. Handling Packets in Flight.....................................9

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   6. Moving Local State of VM......................................10
   7. Handling of Hot, Warm and Cold VM Mobility....................10
   8. VM Operation..................................................11
   9. Security Considerations.......................................11
   10. IANA Considerations..........................................12
   11. Acknowledgments..............................................12
   12. Change Log...................................................12
   13. References...................................................12
      13.1. Normative References....................................13