RMIPv6移动性管理的改良方案

An Improved Mobility Management Scheme for RMIPv6

分析了RMIPv6协议在IP移动性管理中的优势和不足,提出了一种新的基于区域发现的改良方案。该方案通过接入路由器的区域通告信息和预置的约束条件,让移动节点可以提前做好切换的准备工作,能有效降低RMIPv6在区域位置更新时所花费的代价。通过对OSPF协议的报头扩展对该方案进行了仿真和性能分析,证明了其在位置更新代价上所具有的优势。

RMIPv6, proposed by IETF, is an improved mobility management scheme to Mobile IP, which features employing the dynamic regional anchor points to carry out the micro mobility management inside domains. This paper analyzes the advantages and disadvantages of RMIPv6, and improves the scheme by using a method based on region discovery. Benefited from the anchor points＇ region advertisement and the given cost constraints, the mobile nodes can start the proper handover routine in advance, so reducing the cost effectively when mobile nodes moving from one region to another. The amended scheme can be implemented by extending the OSPF＇s packet header. The simulation result shows the advantage of the improved scheme in the cost of location update compared with the original RMIPv6.