名址分离网络中一种新的双层映射系统研究  

A Novel Two-layer Mapping System in Networks with Locator/Identifier Separation

作　　者：章小宁[1] 佘腾腾 邱恺[1] 王晟[1] 李乐民[1] 

机构地区：[1]电子科技大学通信与信息工程学院,成都611731

出　　处：《电子与信息学报》2014年第10期2357-2363,共7页Journal of Electronics & Information Technology

基　　金：国家973计划项目(2013CB329103);国家自然科学基金(61201129);长江学者和创新团队发展计划和高等学校学科创新引智计划(B14039)资助课题

摘　　要：作为下一代互联网的关键技术,名址分离可以有效解决当前网络的可扩展性问题。映射系统的设计是名址分离网络中的核心问题。该文在LISP-DHT(Locator/Identifier Separation Protocol-Distributed Hash Table)基础上,提出一种D1HT与Chord相结合的双层映射系统;同时对现有Chord环结构进行改进,减少了Chord环中的信息冗余,解决了LISP映射系统中存在的物理拓扑与逻辑拓扑不匹配的问题。仿真结果表明,D1HT与Chord相结合的双层映射系统与LISP-DHT相比,缩短了平均查询时延和查询路径,提升了查询性能。As the key technology in the next-generation Internet, locator/identifier separation mechanism can efficiently solve the scalability problem of current networks. For identifier and locator separation networks, the mapping system design is an important issue. In this paper, the combination of D1HT and Chord two-layer mapping system is proposed based on Locator/Identifier Separation Protocol-Distributed Hash Table （LISP-DHT）. In addition, the Chord architecture is improved. The proposed mapping system solves the problem that the logic topology does not match the physical topology, and it reduces the redundancy of information. According to simulation results, this mapping system shortens the average query delay and the average path length, and it finally improves the performance of the system.

关 键 词：互联网 名址分离网 映射系统 CHORD 

分 类 号：TP393.4[自动化与计算机技术—计算机应用技术]