摘要：With the development of network technology, IPv6 will be widely used in the next generation Internet, IPv6 will be used in the next generation Internet, IPv6 could combine mobile networks and fixed wireless networks closely, which brings great convenience to people’s live. The handoff delay of Mobile IPv6 seriously affected the real-time communication service quality, therefore various improvement methods based on the basic Mobile IPv6 protocol are proposed. The working principle of Mobile IPv6 is described, the current main switch methods are summarized and the typical methods are detailed and compared in this paper. And at last the future research hot-spots are proposed.
