一种基于移动 IPv6的移动网络的改进设计与实现

摘要

In mobile Internet environment , the IPv6 is prompted to emerge because of the factors such as the insufficiency of IPv 4 addresses, weak ability in mobile support , poor security and rapid expansion of mobile communication demand , etc.Based on analysing the characteristics of mobile IPv6, its working principle and the problems of directly applying the mobile IPv 6 to mobile Internet, we propose an improved design scheme of mobile IPv 6 network which is based on bidirectional tunnel communication model .The scheme focuses in the use of MPLS technology and rerouting mechanism to guarantee the communication quality . Contrastive simulation is carried out through constructing the experimental environment , the improved mobile IPv6 network can meet the needs of current 3G network performance , ensures reliable and effective data transmission between nodes after the mobile node left home agent and entered into the router in other place , these improve the location switching performance of mobile node .%在移动互联网络环境下，由于IPv4地址不足、移动支持能力不强、安全性差及移动通信需求量迅速增大等因素促使IPv6应运而生。在分析移动IPv6的特性、工作原理和移动互联网中直接应用移动IPv6存在问题的基础上，提出一种基于双向隧道通信模型的移动IPv6网络的改进设计方案，方案侧重于运用MPLS技术和重路由机制保证移动网的通信质量。通过构架实验环境进行对比模拟仿真，改进的移动IPv6网可以满足当前3G网络性能的需要，保证移动节点离开家乡代理进入外地路由器后节点之间可靠、有效的数据传送，改善了移动节点位置切换性能。