关键词: 移动锚点, 移动性能, 分级选择, 移动切换

Abstract: In the hierarchical mobile IPv6（HMIPv6），the influence of mobile nodes’ mobile performance and the status of data communication on Mobile Anchor Point（MAP） selection mechanism are studied，the MAP is divided into different grade based on area，and by computing the mobile performance of mobile nodes and communication quantity，advance the mechanism of selecting dynamically different MAP grade based on the change of mobile performance and communication quantity，in order to reduce handover times between mobile nodes and balance load between MAPs.Simulation shows that the mechanism of selecting dynamically different MAP reduce binding update，the good effect of load balance for reducing handover times between mobile nodes and balance load between MAPs，optimize handover process between mobile nodes.The hierarchical selective MAP mechanism is charactered by strong adaptability.

Key words: Mobile Anchor Point（MAP）, mobile performance, hierarchical selection, mobile handover