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brian haley vijay devarapalli deng hui james kempf n.
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MN-HA Signaling for HA Unavailability PowerPoint Presentation
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MN-HA Signaling for HA Unavailability

MN-HA Signaling for HA Unavailability

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MN-HA Signaling for HA Unavailability

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  1. Brian Haley, Vijay Devarapalli, Deng Hui, James Kempf MN-HA Signaling for HA Unavailability

  2. Why? • Some reasons a signaling mechanism is needed: • HA going offline • HA overloaded • HA address changing • Bootstrapping • …

  3. Current drafts • draft-wakikawa-mip6-nemo-haha-spec-00.txt • Defines a Home Agent switch message • A new Mobility Header type to switch a Mobile Node to another Home Agent • draft-deng-mip6-ha-loadbalance-02 • Uses new Mobility Header type to send a single Home Agent address to a Mobile Node • Previously used DHAAD • draft-kempf-mip6-ha-alert-00 • Uses new ICMPv6 message to send multiple Home Agent addresses to a Mobile Node • Each draft defines its own security required for messages

  4. New Messages • A Mobility header message from HA to MN • Signals to the MN that it wont serve the MN any longer • Suggests one or more alternate HA addresses • MN can pick the alternate HA from the message or perform DHAAD again • A Mobility header message from MN to HA acknowledging the above message • IPsec protection • BU/BAck SA can be used

  5. Example +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Payload Proto | Header Len | Type (TBD) | Reserved | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Checksum | # of addresses| Reserved | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | | . Home Agent Addresses... . . . | | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

  6. Future • Necessary Work? • Become WG Document? • Comments?