移动IP网络多层次移动支持机制的研究

Study of multi-layer mobile support mechanism in IP network

首先对业界提出的支持网络移动性的方法从网络分层的层面进行分类和比较,将支持移动性的机制分为三个层次机制:网络层移动性机制、传送层移动性机制,应用层移动性机制、对其中代表性的机制进行分析和阐述,并在此基础上,提出多层次支持IP移动性的模型和机制——多层自适应移动策略表(MLSA-MPT)机制,将不同层次(网络层和应用层)的移动性支持机制结合起来,使网络能够根据业务的实际需求,通过动态选择不同层次的移动支持机制,完成多业务和多应用环境下对移动性的支持。

Firstly analyzes and divides the existing mobility supporting mechanisms into three types, which are network layer mobility supporting mechanism, transport layer mobility supporting mechanism and application layer mobility supporting mechanism, and then describe the typical mechanism of different layer mobility supporting mechanism. According to the above descriptions, a new multi layer mobility support model and mechanism（MLSA-MPT： multiplayer self-adapted mobile policy table） are proposed. By dynamically choosing the different layer mobility support mechanism, the new mechanism can support different mobility requests for multi-service and multi-application.