基于AAA的移动IPv6跨管理域注册过程的研究

当移动IPv6在商业化网络中进行部署的时候,移动节点需要AAA服务器进行认证、授权、计费,于是怎样使移动IPv6和AAA协议高效地融合成为人们研究的热点。文中从协议交互的角度先对具有代表性的两种方案进行了分析和研究,指出了由于在路由优化模式中采用了迂回路由过程产生了较多的信令报文和较长的时延使得整体效果不理想,最后介绍了IETF提出的一种优化草案,利用家乡代理（HA）和通信对端（CN）之间的AAA机制来替代迂回路由过程,有效地减少了信令开销和切换时延。

Study on Mobile IPv6 Handover Between Administrative Domains Based on AAA

When mobile IPv6 is deployed in commercial network, a mobile node needs AAA for authentication, authorization and accounting. Hence scheme which integrating AAA with mobile IPv6 has been research by people. In this paper, do some research and analysis on the two schemes and point out that the result is not satisfactory. Since route optimization mode for MIPv6 is performed using return mutability procedure. At last introduce a draft proposed by IETF, which using the AAA infrastructure between the home agent and a correspondent node instead of return routability procedure. The scheme can reduce handover latency and signaling overhead.