基于SDN的链式快速转发网络模型研究  

Noval research on SDN-based chain-like fast net technology

作　　者：徐昌彪[1] 鲁昭男 徐龙[1] 

机构地区：[1]重庆邮电大学信息与通信工程学院,重庆400065

出　　处：《电视技术》2016年第6期73-77,97,共6页Video Engineering

基　　金：国家自然科学基金项目(61301124)

摘　　要：针对当前网络中降低数据包传输时延的机制复杂且在数据包的匹配过程中存在较高的处理时延,提出了基于软件定义网络(SDN)架构的虚拟链式快速通道路由模式(Chain-Like Hyperchannel Routing Mode,CHRN),在将不同优先级的数据流映射到不同的虚拟传输网络上的同时,时延敏感型数据将采用不查表的快速转发方式来降低数据包的处理时延。实验证明,这种方式在不影响普通数据包传输的条件下,有效提高了时延敏感型数据的传输效率。In this paper, a novel chain-like hyperchannel routing mode（CHRN） is presented, which is based on the Software De- fined Networking（SDN） virtualization technology to deal with the problems that the current mechanism of reducing packets delay is complicated and there is quite a high processing delay during matching flowtable in some routers. In this design, different data will be mapped to different virtual transport network and latency-sensitive data will be handled by the fast transport mechanism without matching flowtable. The simulation show that this approach could effectively improve the transport efficiency of the network without affecting the normal data.

关 键 词：软件定义网络 网络虚拟化 时延 快速转发 

分 类 号：TN915.04[电子电信—通信与信息系统]