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Hanover Management for Mobile Nodes in IPv6 Networks

Hanover Management for Mobile Nodes in IPv6 Networks. Myungchul Kim mckim@icu.ac.kr. IEEE Communications Magazine, August 2002, pp. 38 – 43. Introduction L2 handoff(or handover) vs L3 handoff Mobile IPv6: manage MNs’ movements between wireless IPv6 networks Handover delay

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Hanover Management for Mobile Nodes in IPv6 Networks

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  1. Hanover Management for Mobile Nodes in IPv6 Networks Myungchul Kim mckim@icu.ac.kr

  2. IEEE Communications Magazine, August 2002, pp. 38 – 43. • Introduction • L2 handoff(or handover) vs L3 handoff • Mobile IPv6: manage MNs’ movements between wireless IPv6 networks • Handover delay • New prefix discovery on the new subnet • The new care-of address establishment • The time needed to notify the correspondents and home agent the new locality of the MN • Handover delay for real-time multimedia applications • Proposals for reducing the latency and the number of lost packets due to handover • Mobile IPv6 • Hierarchical Mobile IPv6 • Fast Handover Protocol • An evaluation of Mobile IP over IEEE 802.11b wireless LAN

  3. Mobile IPv6 • Binding: association between the home address and the current care-of address of an MN

  4. The Handover procedure • Router advertisement by access router (AR) or router solicitation by MN • Duplication address detection (DAD): the MN first needs to verify the uniqueness of its link-local address on the new link. • Perform DAD in parallel with communications or • Choose not to perform it • Handover enhancement

  5. Hierarchical Mobile IPv6 • Mobile anchor point: domain • All MN movements within the domain are hidden from the home agent and correspondents since the global care-of address of the MN does not change.

  6. Fast handover • L2 triggers • Link up • Link down • L2 handover start • Anticipated Handover vs Tunnel Based Handover

  7. Tunnel Based Handover • The MN delays the new care-of address establishment when it moves to a new AR • It performs an L2 handover and continues to use its old care-of address in the new subnet • Mobile IPv6 Evaluation over IEEE 802.11B • The ARs are configured to send a router advertisement every second.

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