HBIA模型中映射同步更新机制研究

Research of synchronized updating of mapping in HBIA model

提出一种基于HIP协议的间接通信结构模型HBIA,该模型引入了"映射同步更新"机制,将用户的身份信息与位置信息相分离,用接入标识HIT表示终端主机的身份,而广义交换路由标识IP仅用于终端主机在核心网中路由和寻址。主机移动时,由于仅仅改变了其广义交换路由标识,而接入标识并没有发生变化,因此只要及时完成其主、从、子映射的同步更新,原有通信就不会中断,从而有效解决了终端的移动问题。在搭建的环境中进行了实验和验证,测试结果表明,该更新机制能够很好地实现主机的移动并保障了其安全性。

An indirection architecture model HBIA based on HIP protocol is proposed. The synchronized updating of mapping is adopted in HBIA, in which the information of identity and location of users are separated. The accessing identifier HIT is used as identity of hosts, and the IP address is just used to route packets in core network. When a host moves, its IP address changes but HIT keeps the same. If the synchronized updating of main, next and child mapping is achieved in time, the communicate connection Will not be interrupted, through which the problem of end host mobility is resolved efficiently. Then we implemented the updating mechanism in our test environment and the results indicated that it can achieve the mobility of hosts very well and ensure the security.