DMAP-FR: Integrated Mobility and Service Management with Failure Recovery Support for Mobile IPv6 Systems

In this paper, we propose and analyze DMAP-FR, a mobility and service management scheme with failure recovery control in Mobile IPv6 systems. The basic idea behind DMAP-FR is to leverage access routers (ARs) as regional mobility anchor points (MAPs) as in HMIPv6 for mobility and service management for mobile nodes (MNs). However unlike HMIPv6, DMAP-FR allows the MAP of each MN to be determined dynamically based on the mobility and service characteristics of the MN and the failure behavior of ARs with the goal to minimize the network traffic. DMAP-FR incorporates fault tolerance mechanisms to allow the system to quickly recover from AR and MAP failures. We identify the best dynamic regional area size for the selection of MAPs for each MN such that the overall network traffic due to servicing mobility, service and fault tolerance related operations is minimized. We demonstrate that DMAP-FR outperforms HMIPv6 for the same AR failure rate.