Considerations on the Application of the Level 3 Multihoming Shim Protocol (Shim6)
draft-garcia-shim6-applicability-04

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Last updated 2012-03-16
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Individual Submission                                           J. Abley
Internet-Draft                                                     ICANN
Intended status: Informational                                M. Bagnulo
Expires: September 17, 2012                           A. Garcia-Martinez
                                                                    UC3M
                                                          March 16, 2012

   Considerations on the Application of the Level 3 Multihoming Shim
                            Protocol (Shim6)
                  draft-garcia-shim6-applicability-04

Abstract

   This document discusses some considerations on the applicability of
   the Shim6 IPv6 protocol and associated support protocols and
   mechanisms to provide site multihoming capabilities in IPv6.

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   This Internet-Draft will expire on September 17, 2012.

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   Copyright (c) 2012 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Deployment Scenarios . . . . . . . . . . . . . . . . . . . . .  4
   3.  Addresses and Shim6  . . . . . . . . . . . . . . . . . . . . .  6
     3.1.  Protocol Version (IPv4 vs. IPv6) . . . . . . . . . . . . .  6
     3.2.  Prefix Lengths . . . . . . . . . . . . . . . . . . . . . .  7
     3.3.  Address Generation and Configuration . . . . . . . . . . .  7
     3.4.  Use of CGA vs. HBA . . . . . . . . . . . . . . . . . . . .  8
   4.  Shim6 in Multihomed Nodes  . . . . . . . . . . . . . . . . . .  8
   5.  Shim6 Capabilities . . . . . . . . . . . . . . . . . . . . . . 10
     5.1.  Fault Tolerance  . . . . . . . . . . . . . . . . . . . . . 10
       5.1.1.  Establishing Communications After an Outage  . . . . . 10
       5.1.2.  Short-Lived and Long-Lived Communications  . . . . . . 11
     5.2.  Load Balancing . . . . . . . . . . . . . . . . . . . . . . 11
     5.3.  Traffic Engineering  . . . . . . . . . . . . . . . . . . . 12
   6.  Application Considerations . . . . . . . . . . . . . . . . . . 12
   7.  Interaction with Other Protocols and Mechanisms  . . . . . . . 13
     7.1.  Shim6 and Mobile IPv6  . . . . . . . . . . . . . . . . . . 14
       7.1.1.  Multihomed Home Network  . . . . . . . . . . . . . . . 14
       7.1.2.  Shim6 Between the HA and the MN  . . . . . . . . . . . 16
     7.2.  Shim6 and SEND . . . . . . . . . . . . . . . . . . . . . . 16
     7.3.  Shim6, SCTP and MPTCP  . . . . . . . . . . . . . . . . . . 17
     7.4.  Shim6 and NEMO . . . . . . . . . . . . . . . . . . . . . . 18
     7.5.  Shim6 and HIP  . . . . . . . . . . . . . . . . . . . . . . 18
     7.6.  Shim6 and Firewalls  . . . . . . . . . . . . . . . . . . . 19
     7.7.  Shim6 and IPv6 NAT . . . . . . . . . . . . . . . . . . . . 20
   8.  Security Considerations  . . . . . . . . . . . . . . . . . . . 23
     8.1.  Privacy Considerations . . . . . . . . . . . . . . . . . . 24
   9.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 24
   10. Contributors . . . . . . . . . . . . . . . . . . . . . . . . . 24
   11. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 24
   12. References . . . . . . . . . . . . . . . . . . . . . . . . . . 25
     12.1. Normative References . . . . . . . . . . . . . . . . . . . 25
     12.2. Informative References . . . . . . . . . . . . . . . . . . 26
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 28

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