一种基于HIP的移动性管理机制

主机标识协议（Host Identity Protocol，HIP）是一种综合解决主机移动、多宿主及安全问题的有效方案，为了解决现有HIP机制在处理主机移动时存在切换延迟大、丢包率高等问题，提出了一种高效的基于HIP的移动性管理机制。该机制在基于HIP的层次化设计模型基础上，采用FMIPv6中的快速切换思想，引入了链路层触发机制、预先绑定更新机制和分组缓存转发机制。有效解决了移动主机在不同区域范围内的切换问题，降低了切换延迟和丢包率，改善了移动主机的切换性能，实现了透明、平滑、快速的网络切换。

A Mobile Management Mechanism Based on HIP

Host Identity Protocol （HIP） is a comprehensive solution to solve mobility, multi-homing and secure issues efficiently. But there are some problems for current HIP,such as long time handoff latency and large packets loss. In order to solve these problems,an efficient mobility management mechanism based on HIP is proposed. The mechanism uses the idea of rapid handover in FMIPv6 ,introduces the link triggered mechanism, early updating mechanism and packet retransmission mechanism. The new mechanism solves the handover problem in the differo~t area for the mobile host,reducing handoff latency and packet loss rate and improving the handoff performance, which achieves a transparent,smooth and fast handover.