Abstract: Based on the characteristics and requirements of mobility support under the network environment of identifier mapping separation, aiming at the problem of excessive handoff delay in the existing network mobile switching technologies, a seamless switching method based on reverse route redirection was proposed. The method consists of the mobility detection, mapping information update and flow deflection. Compared with FHMIPv6 on the delay, the method can meet the real-time application requirements in the identifier separation network environment. And in the switching process much less mobile nodes are involved, which can save large amounts of wireless access system resources. Simulation results show that the values of handoff delay parameters of this method are consistent with the analysis, thus meeting a variety of real-time application requirements.

Key words: reverse route redirection, seamless switching, mobility detection, flow deflection