基于位置关联Chord的名址分离映射系统

名址分离网络中需要一个高性能、可扩展、分布式的映射解析系统,用来管理名称和地址之间的绑定信息,可靠有效地处理名称的位置查询.在映射系统的设计中,结构化分布式哈希表技术是使用最广的,为解决其中物理网络与逻辑网络的失配问题,以及高移动场景下的高更新成本问题,设计了一个基于位置关联Chord的名址分离映射系统.通过在逻辑网络...

Name-address Separation Mapping System Based on Location-related Chord

In the name-address separation network,a high-performance,scalable and distributed mapping analysis system is needed to manage the binding information between names and addresses,and to reliably and efficiently handle the location query of names.In the design of the mapping system,the structured distributed hash table technology is the most widely used.In order to solve the problem of mismatch between the physical network and the logical network,as well as the high update cost in high mobile scenarios,we design a Chord’s name-address separation mapping system.By adding the topology information of the physical network to the routing table of the nodes in the logical network,the recursive search process of the Chord ring is changed.In addition,the binding relationship between name and address is managed at two levels within the domain and outside the domain.IP addresses are directly bound in the domain.The binding information is changed to the name and network address outside the domain.The scope of updating the binding information is reduced as much as possible by adding a one-hop query.In the domain,the mapping analysis performance of the system is improved.The theoretical analysis and simulation tests verify that compared to LISP-DHT,the average query delay of the location-based Chord mapping system is smaller.