【摘要】 当一个移动节点(MN)或移动路由器(MR)移动到另一个移动网络,并通过另一个MR提供接入时,这样的情况称为嵌套移动网络,这样的嵌套可以有很多层。一个典型的例子是携带笔记本电脑的乘客登上一架通过MR提供移动网络服务的航班,并通过该MR访问互联网或公司的内部网络。在这种情况下,移动节点和通信节点之间的数据包的传送路径将到达每个节点的HA(家乡代理)处,因此其路径将比基本的MIP(移动IP)长得多,现有路由优化方法不能解决这个问题,因为可以旁路MN的HA,但是却无法跳过MR的HA。本文通过在民航移动网络的设计中应用HMIP(层次移动IP)思想,并对其进行一定的改进来解决上面的这些问题,提高网络的运行效率。更多还原

【Abstract】 When a MN or MR moves into a mobile network,and gets connected through another MR,it is called nested mobile network.An example is that a passenger gets on an airplane and gets connected through mobile network on the plane with his laptop.In this case,the packet transfer routebetween a correspondent node(CN)and a mobile node(MN)may become much longer than in the simple Mobile IP case,because packets can reach endpoints through all of the home agents(HAs)to which the mobile routers(MRs)and the MN belong.The existing route optimization function of Mobile IPv6 cannot solve this problem, because when it bypasses an MN’s HA,it cannot skip MRs’HAs.This article provides solutions to achieve route optimization in these situations by the implementation and improvement of HMIPv6 on aeronautical mobile network.更多还原