Design of mobile network route optimization based on the hierarchical algorithm

A mobile network is an entire network, moving as a unit, which dynamically changes its point of attachment to the Internet and its reachability in the topology. One of the issues in designing a mobile network with MR-HA bidirectional tunnel is to solve the route optimization problem in the nested mobile networks. Since the aggregated hierarchy of mobile networks becomes a single nested mobile network, in order to forward packets to the nested mobile network nodes, multiple levels of bi-directional nested tunnels are required. We propose a hierarchical mechanism that allows direct packet tunneling between HA and MR and allows localized mobility management for MR.