Scaling the Address Resolution Protocol for Large Data Centers (SARP)
draft-nachum-sarp-04

The information below is for an old version of the document
Document Type Active Internet-Draft (individual)
Last updated 2013-02-24
Stream (None)
Intended RFC status (None)
Formats pdf htmlized bibtex
IETF conflict review conflict-review-nachum-sarp
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
INTAREA Working Group                                      Youval Nachum
Internet Draft
Intended status: Proposed Standard                          Linda Dunbar
Expires: August 2013                                              Huawei

                                                         Ilan Yerushalmi
                                                             Tal Mizrahi
                                                                 Marvell

                                                       February 24, 2013

       Scaling the Address Resolution Protocol for Large Data Centers
                                  (SARP)
                         draft-nachum-sarp-04.txt

Abstract

   This  document  provides  a  recommended  architecture  and  network
   operation  named  SARP.  SARP  is  based  on  fast  proxies  that
   significantly  reduce  broadcast  domains  and  ARP/ND  broadcast
   transmissions. SARP supports smooth and fast virtual machine (VM)
   mobility without any modification to the VM, while keeping the
   connection up and running efficiently.  SARP is targeted for massive
   scaling data centers with a significant number of VMs using ARP and
   ND protocols.

Status of this Memo

   This Internet-Draft is submitted to IETF in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF), its areas, and its working groups.  Note that
   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
   http://www.ietf.org/ietf/1id-abstracts.txt.

   The list of Internet-Draft Shadow Directories can be accessed at
   http://www.ietf.org/shadow.html.

   This Internet-Draft will expire on August 24, 2013.

Nachum, et al.         Expires August 24, 2013                [Page 1]
Internet-Draft                  SARP                     February 2013

Copyright Notice

   Copyright (c) 2013 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
      1.1. SARP Motivation.......................................... 3
      1.2. SARP Overview ........................................... 5
      1.3. SARP Deployment Options ................................. 6
   2. Terms and Abbreviations Used in this Document ................ 7
   3. SARP Description ............................................. 8
      3.1. Control Plane: ARP/ND ................................... 8
         3.1.1. ARP/NS Request for a Local VM ...................... 8
         3.1.2. ARP/NS Request for a Remote VM ..................... 8
         3.1.3. Gratuitous ARP and Unsolicited Neighbor Advertisement
         (UNA) ..................................................... 9
      3.2. Data Plane: Packet Transmission ......................... 9
         3.2.1. Local Packet Transmission .......................... 9
         3.2.2. Packet Transmission Between Sites ................. 10
      3.3. VM Migration ........................................... 11
         3.3.1. VM Local Migration ................................ 11
         3.3.2. VM Migration from One Site to Another ............. 11
            3.3.2.1. Impact to IP<->MAC Mapping Cache Table of VMs being
            moved ................................................. 12
      3.4. Multicast and Broadcast ................................ 13
      3.5. Non IP packet .......................................... 13
      3.6. IP<->MAC caching on SARP Proxy ......................... 13
      3.7. High availability and load balancing ................... 14
      3.8. SARP Interaction with Overlay networks ................. 15
   4. Conclusions ................................................. 15
   5. Security Considerations ..................................... 16
   6. IANA Considerations ......................................... 16
Show full document text