In this paper,comparative advantages and disadvantages of mobile IPv4 and mobile IPv6 technical principles and discuss the current shape of several standards for the expansion of mobile IPv6 switching programs,such as fast handover for Mobile IPv6(FMIPv6),hierarchical Mobile IPv6 management model(HMIPv6),using HMIPv6 rapid switching technology,and these types of programs for analysis Based on this analysis, two programs are proposed to improve the switching ,one is based on the improvement FHMIPv6 in the program to improve the introduction of the concept of routing functions, design an optimal routing algorithm for routing a number of features choose the most optimized in order to prevent unnecessary switching macros to reduce the switching delay of registration. An improvement based on MPLS, the introduction of the concept of MPLS services enhanced the quality of real-time, highlight the pre-establishment of LSP.Only used updates,a switch can be achieved in the new subnet MN normal communications, it decrease signal transmission distance and signal processing time.Finally,used software of NS2 network simulation to simulate two types of programs , improve the performance of experiments .Analysis of experimental data proved to improve the program than the original program to reduce the loss rate and delay security , pointed out that improved programs are further improvement.
