一体化标识网络中映射缓存一致性研究

发布时间：2018-06-05 01:07

本文选题：身份与位置分离 + 一体化标识网络　；参考：《北京交通大学》2017年硕士论文

【摘要】：随着信息互联技术的飞速发展,互联网的规模正在稳健地扩大,给人们带来更多便捷的同时,也因其原始设计的缺陷带来了各式各样的弊端,出现了可扩展性差,安全性差,移动性差等种种问题。为了解决传统互联网存在的这些问题,国内外众多机构都致力于下一代互联网的研究,其中一种主流思想就是将身份与位置分离开来。北京交通大学下一代互联网互联设备国家工程实验室提出了一体化标识网络的概念,采用身份与位置分离的思想将终端的身份信息和位置信息隔离开来,用接入标识表示终端的身份信息,用路由标识表示终端的位置信息,通过映射系统来实现相关信息的存储和查询功能。本文基于一体化标识网络,根据现有映射系统的映射缓存信息一致性较弱等缺点,对现有的分布式映射系统进行改进设计,通过设计进程间通信完善映射信息的发布和恢复过程后,在此一体化标识网络下,用映射服务器来对接入交换路由器中远端映射缓存表中缓存的映射关系进行控制,设计一种保证映射缓存强一致性的机制。本文首先对身份与位置分离网络的映射系统的背景进行讨论,然后对一体化标识网络的架构原理,工作实体以及通信流程进行详细的讲解。在完善一体化标识网络中归属域信息发布和恢复的前提下,针对映射信息查询过程中的缓存一致性信息查询,设计具体的工作流程和解析机制,对缓存查询解析模块和缓存处理模块这两个一致性模块进行设计,并在代码上进行了实现,同时对各个功能模块进行功能性测试,验证了归属域信息的自动发布和恢复,以及缓存的时效性,并对缓存的弱一致性和强一致性进行了性能的对比,提出了强一致性的必要性。最后对全文工作进行了分析与总结,并对后续的工作进行了展望。
[Abstract]:With the rapid development of information interconnection technology, the scale of the Internet is expanding steadily, which brings more convenience to people. At the same time, because of the defects of its original design, it also brings all kinds of drawbacks, resulting in poor scalability and poor security. Poor mobility and other problems. In order to solve these problems of traditional Internet, many institutions at home and abroad are committed to the next generation of Internet research, one of the mainstream ideas is to separate identity from location. The National Engineering Laboratory of next Generation Internet Interconnection equipment of Beijing Jiaotong University has put forward the concept of integrated identification network, which uses the idea of separating identity and location to separate the identity information and location information of the terminal. The identity information of the terminal is represented by the access identification, the location information of the terminal is represented by the route identification, and the function of storing and querying the relevant information is realized by the mapping system. Based on the integrated identification network and the weak consistency of the mapping cache information of the existing mapping system, this paper improves the design of the existing distributed mapping system. After designing inter-process communication to improve the release and recovery of mapping information, the mapping server is used to control the mapping relationship of the remote mapping cache table in the access switch router under the integrated identification network. A mechanism to ensure strong consistency of mapping cache is designed. In this paper, the background of the mapping system of identity and location separation network is discussed, and then the architecture principle, working entity and communication flow of integrated identification network are explained in detail. On the premise of perfecting the distribution and recovery of home domain information in the integrated identification network, the concrete workflow and parsing mechanism are designed for the cache consistency information query in the process of mapping information query. The cache query parsing module and cache processing module are designed and implemented in code. At the same time, the functional test of each functional module is carried out to verify the automatic release and recovery of home domain information. The paper also compares the performance of cache with weak consistency and strong consistency, and puts forward the necessity of strong consistency. Finally, the paper analyzes and summarizes the work, and the future work is prospected.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP393.0

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