A multilayered mobility management scheme for auto-configured wireless IP networks

1 All authors are with Telcordia Technologies except Henning Schulzrinne, who is with Columbia University. Ravi Jain was with Telcordia Technologies and is now with NTT DoCoMo Labs. Abstract The convergence of wireless and Internet Protocol (IP) has led to the need for IP to handle mobility. The Mobile IP protocol was developed to facilitate IP mobility. However, it has a number of shortcomings for dynamically autoconfigured networks. Mobility protocols like Mobile IP with Location Registers (MIP-LR), and Session Initiation Protocol (SIP), have been developed to address some of its shortcomings. Micro-mobility protocols like Cellular IP have been developed to address other shortcomings of Mobile IP. In this paper, we present a new integrated mobility management scheme that advantageously combines the strengths of SIP and MIP-LR with the benefits of a micromobility management protocol similar to Cellular IP. A prototype implementation of our scheme is explained, and lessons learnt in the prototyping process are presented.