Virtual Machine Mobility Protocol for L2 and L3 Overlay Networks
draft-sarikaya-nvo3-vmm-dmm-pmip-11

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Network Working Group                                        B. Sarikaya
Internet-Draft                                                 L. Dunbar
Intended status: Best Current Practice                        Huawei USA
Expires: September 7, 2017                                 B. Khasnabish
                                                           ZTE (TX) Inc.
                                                           March 6, 2017

    Virtual Machine Mobility Protocol for L2 and L3 Overlay Networks
                draft-sarikaya-nvo3-vmm-dmm-pmip-11.txt

Abstract

   This document describes a virtual machine mobility protocol commonly
   used in data centers built with overlay-based network virtualization
   approach.  For layer 2, it is based on using a Network Virtualization
   Authority (NVA)-Network Virtualization Edge (NVE) protocol to update
   Address Resolution Protocol (ARP) table or neighbor cache entries at
   the NVA and the source NVEs tunneling in-flight packets to the
   destination NVE after the virtual machine moves from source NVE to
   the destination NVE.  For Layer 3, it is based on address and
   connection migration after the move.

Status of This Memo

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   Copyright (c) 2017 IETF Trust and the persons identified as the
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   This document is subject to BCP 78 and the IETF Trust's Legal
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   (http://trustee.ietf.org/license-info) in effect on the date of

Sarikaya, et al.        Expires September 7, 2017               [Page 1]
Internet-Draft            VM Mobility Solution                March 2017

   publication of this document.  Please review these documents
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Conventions and Terminology . . . . . . . . . . . . . . . . .   3
   3.  Requirements  . . . . . . . . . . . . . . . . . . . . . . . .   4
   4.  Overview of the protocol  . . . . . . . . . . . . . . . . . .   4
     4.1.  VM Migration  . . . . . . . . . . . . . . . . . . . . . .   4
     4.2.  Task Migration  . . . . . . . . . . . . . . . . . . . . .   6
       4.2.1.  Address and Connection Migration in Task Migration  .   7
   5.  Handling Packets in Flight  . . . . . . . . . . . . . . . . .   7
   6.  Moving Local State of VM  . . . . . . . . . . . . . . . . . .   8
   7.  Handling of Hot, Warm and Cold Virtual Machine Mobility . . .   9
   8.  Virtual Machine Operation . . . . . . . . . . . . . . . . . .   9
     8.1.  Virtual Machine Lifecycle Management  . . . . . . . . . .   9
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  10
   10. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  10
   11. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  10
   12. References  . . . . . . . . . . . . . . . . . . . . . . . . .  10
     12.1.  Normative References . . . . . . . . . . . . . . . . . .  10
     12.2.  Informative references . . . . . . . . . . . . . . . . .  11
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  12

1.  Introduction

   Data center networks are being increasingly used by telecom operators
   as well as by enterprises.  In this document we are interested in
   overlay-based data center networks supporting multitenancy.  These
   networks are organized as one large Layer 2 network geographically
   distributed in several buildings.  In some cases geographical
   distribution can span across Layer 2 boundaries.  In that case need
   arises for connectivity between Layer 2 boundaries which can be
   achieved by the network virtualization edge (NVE) functioning as
   Layer 3 gateway routing across bridging domain such as in Warehouse
   Scale Computers (WSC).
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