Considerations for designing fast handoff mechanisms in mobile IPv6

The wireless LAN is a potential candidate technology for providing wireless access services. Also, wireless LAN can meet demands for expended wireless access coverage while maintaining continuous connectivity from one wireless LAN to another by supporting Mobile IP. Along with these, many standard organizations are considering Mobile 1Pv6 for their mobility management protocol in the next generation network. IETF is developing Hierarchical Mobile IPv6 and Fast Handoff for Mobile 1Pv6 to provide fast handoff mechanisms with Mobile 1Pv6. In this paper the Mobile 1Pv6 and its handoff issues an introduced. The three factors that affect Mobile IP handoff delay, movement detection, address configuration location update, are analyzed thoroughly. At last, consideration; for designing fast handoff mechanisms reducing Mobile IP handoff delay are suggested.