MAC move over Geneve encapsulation
draft-boutros-nvo3-mac-move-over-geneve-02

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Last updated 2019-09-19
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INTERNET-DRAFT                                              Sami Boutros
Intended Status: Standard Track                       Jerome Catrouillet
                                                  Sri Mohana Singamsetty
                                                                  VMware
                                                              Parag Jain
                                                                   Cisco

Expires: March 22, 2020                               September 19, 2019

                   MAC move over Geneve encapsulation
               draft-boutros-nvo3-mac-move-over-geneve-02

Abstract

   This document specifies a mechanism to signal Media Access Control
   (MAC) addresses move over a Network Virtualization Overlays over
   Layer 3 (NVO3) virtual tunnel.  Such notification is useful in
   redundancy scenarios when a Layer 2 service that was active on a
   Network Virtualization Edge (NVE) fails over to a standby NVE. This
   notification can be used only when data plane mac learning is enabled
   over the NVO3 tunnels.

Status of this Memo

   This Internet-Draft is submitted to IETF in full conformance with the
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Copyright and License Notice
 

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   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
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   include Simplified BSD License text as described in Section 4.e of
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   described in the Simplified BSD License.

Table of Contents

   1  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . .  3
     1.1  Terminology . . . . . . . . . . . . . . . . . . . . . . . .  3
     1.2 Abbreviations  . . . . . . . . . . . . . . . . . . . . . . .  3
   2. MAC Move Frame Format . . . . . . . . . . . . . . . . . . . . .  5
   3. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . .  6
     3.1 Operation of Sender  . . . . . . . . . . . . . . . . . . . .  6
     3.2 Operation of Receiver  . . . . . . . . . . . . . . . . . . .  7
   4. Security Considerations . . . . . . . . . . . . . . . . . . . .  7
   5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . .  7
   6  References  . . . . . . . . . . . . . . . . . . . . . . . . . .  8
     6.1  Normative References  . . . . . . . . . . . . . . . . . . .  8
     6.2  Informative References  . . . . . . . . . . . . . . . . . .  8
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . .  8

 

Boutros                  Expires March 22, 2020                 [Page 2]
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1  Introduction

   In multi-homing scenarios a Layer 2 service can be multi-homed to
   more than one Network virtualization Edge (NVE). Only one NVE can be
   active for a given Layer 2 service, and a standby NVE can be chosen
   to take over the Layer 2 service when the active NVE goes down. The
   mechanisms to elect which NVE will be active or standby to provide
   single active redundancy for a given Layer 2 service is outside the
   scope of this document.

   When a standby NVE gets activated, Standby NVE needs to send a MAC
   Move message to all remote NVE(s) that spans this L2 service over the
   Geneve tunnels to Move all MAC learned in data plane via the old
   active NVE.

   The MAC Move message will contain the NVE Identifier(s) of the old
   Active NVE and the new active NVE.

   MAC Move can be used to optimize network convergence and reduce
   blackholes, when an active NVE hosting a logical L2 service fails
   over to a standby NVE.
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