一种基于Hash的位置标识映射机制  

A Hash-Based Locator/ID Mapping Mechanism

作　　者：涂睿[1] 苏金树[1] 

机构地区：[1]国防科学技术大学计算机学院,湖南长沙410073

出　　处：《计算机工程与科学》2010年第2期7-10,74,共5页Computer Engineering & Science

基　　金：国家自然科学基金资助项目(90604006);国家973计划资助项目(2009CB320503)

摘　　要：随着互联网的发展,传统的基于TCP/IP体系结构的互联网在扩展性、移动性、安全性等方面的缺陷逐渐暴露出来,并限制了多宿主、流量工程等新技术的发展,这其中的一个重要原因就是IP地址语义过载。针对这一问题,学术界普遍认为需要对下一代互联网的命名和寻址体系结构进行重新设计,Locator/ID Split就是其中一个重要的研究方向。Locator/ID Split的核心是提供基于扁平标识的可扩展映射服务机制。HLIMM采用了基于哈希的路由方式,通过一组分布式映射服务器,为边缘网络提供了确定性的映射解析机制,满足了扁平标识Identifier映射服务的可扩展性,并能够在一定程度上适应映射服务节点的动态加入和离开。With the development of the Internet, the original TCP/IP architecture is facing some critical challenges from its scalability, mobility, security and so on, and the flaws of which have hampered the development of some new network technologies such as multi homing and traffic engineering. One of the most important causes for this problem is the IP address semantic overloading. To address the issue, researchers commonly suggest that we should redesign the naming and addressing architecture of the next generation Internet. ＂Locator/ID Split＂ is one of the most important techniques in tackling the problem. At the core of ＂Locator/ID Split＂ is the scalable flat-labels based mapping service. This paper proposes HLIM, which uses hash-based routing to provide a deterministic mapping resolution for the edge network through distributed mapping servers. HLIM Satisfies the scalability of the flat labels ＂Identifier＂ mapping service, and can adapt to the dynamic joining and leaving of the mapping nodes to some extent.

关 键 词：Locator/ID SPLIT 扁平标识 映射服务 哈希 扩展性 

分 类 号：TP393.03[自动化与计算机技术—计算机应用技术]