Network –based fast handovers for local mobility (NFLM)

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Presentation transcript:

Network –based fast handovers for local mobility (NFLM) Mohan Parthasarathy Rajeev Koodli Basavaraj Patil Seppo Vesterinen 1 © 2005 Nokia nflm-ietf64.ppt/2005-11-07

Network-based Fast handover for local mobility (NFLM) NFLM protocol features Reuses existing protocol messages (Binding Updates, Handover messages etc.) Supports both Predictive and Reactive handovers Anchor Point Discovery similar to HA discovery in MIPv6 bootstrapping Supports both DHCPv6 and stateless address auto-configuration Same IP address can be maintained within the local domain Tunneling between MAP and AR is flexible Supports MN identifier option to uniquely identify the MN in the local domain 2 © 2005 Nokia nflm-ietf64.ppt/2005-11-07

NFLM Predictive handover MN PAR NAR MAP IP configuration FBU (PCoA, MN-ID) FBack (MN-ID) Data Packet flow L2 Trigger HI (PCoA, MN-ID) FBU (PCoA, NAR-IP, MN-ID) Update MN state Hack (MN-ID) FBack (PAR-IP, MN-ID) Clean up MN state Data Packet flow 3 © 2005 Nokia nflm-ietf64.ppt/2005-11-07

NFLM Reactive handover MN PAR NAR MAP Data Packet Flow DHCP /RtSol /NA FBU (PCoA, NAR, MN-ID) Update MN state L2 Trigger UnSol HAck FBack (PAR, MN-ID) Clean up MN state Data Packet Flow 4 © 2005 Nokia nflm-ietf64.ppt/2005-11-07

Summary Satisfies NETLMM requirements Simple solution to address localized mobility as it reuses the existing standardized methods (FMIPv6, HA discovery, etc.) Future optimizations (AR-AR tunnel etc.) can be easily incorporated 5 © 2005 Nokia nflm-ietf64.ppt/2005-11-07