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Problem Statement for Multihomed Mobile Nodes

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Multiple interfaces management. Draft-montavont-mip6-mmi ... on interfaces. Multihomed mobile ... simultaneously use several interfaces. How to manage ... – PowerPoint PPT presentation

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Title: Problem Statement for Multihomed Mobile Nodes


1
Problem Statement for Multihomed Mobile Nodes
  • Nicolas Montavont LSIIT / ULP
  • Ryuji Wakikawa Keio university
  • Thierry Ernst Keio university
  • Thomas Noel LSIIT / ULP

IETF 58 November 2003 - Minneapolis
2
Current work on multihoming
  • Multiple CoAs management
  • Draft-wakikawa-mobileip-multiplecoa-02
  • Multiple interfaces management
  • Draft-montavont-mip6-mmi-01
  • Biscasting
  • Draft-elmalki-mobileip-bicasting-04
  • Per-flow mobility
  • Draft-soliman-mobileip-flowmove-04
  • Filtering operations
  • Draft-nomadv6-mobileip-filters-01
  • Draft-montavont-mobileip-ha-filtering-v6-00
  • Other proposals
  • HIP draft-nikander-hip-mm-00
  • SCTP draft-coene-sctp-multihome-04

3
Whats missing
  • Terminology
  • Motivation
  • Accurate (and common) goal
  • Some issues are related to MIP (eg. several
    HoAs/CoAs) while some other not (eg. A fixed node
    can be multihomed)

4
Multihomed MNs
  • A MN is multihomed when it has several addresses
    to choose between
  • Multi-prefixed
  • Multi-interfaced
  • Multi-linked

5
Benefits of multihoming
  • Redundancy
  • Ubiquitous computing
  • Load balancing
  • Preference settings

6
Why MIPv6
  • Multihomed fixed node
  • Address selection
  • Policies on interfaces
  • Multihomed mobile node
  • Host identification multiple HoAs, multiple HAs,
    multiple CoAs
  • Scenarios in draft-montavont-mobileip-pb-statement
  • Some can be solved with solution like SCTP
  • Some need MIP modification / extension

7
Open issues
  • MIPv6 related issues
  • Extension of relation between HoAs and CoAs
  • Bind multiple CoAs to the same HoA
  • Need a policy to manage several CoAs bound to a
    single HoA
  • Non-MIPv6 related issues
  • How to simultaneously use several interfaces
  • How to manage multiple HoAs
  • Redirection between interfaces
  • Flow spreading on multiple interfaces ?

8
Last point
  • In which Working Group ?
  • IPv6
  • MIPv6
  • Multi6
  • NEMO
  • New one ??
  • How to coordinate activities from different WGs ?
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