摘要
为优化面向数据中心的多级交换网络的设计,系统研究中间级有缓存的Clos交换网络各级模块的缓存规模对交换网络吞吐率和时延性能的影响。基于马尔科夫链模型推导吞吐率性能的计算公式,以及无信元丢失所需的最小重排缓存规模。对不同参数设置下中间级有缓存的Clos交换网络进行仿真分析,仿真结果表明,理论推导值具有较高准确度,综合理论分析和仿真验证的结果,总结了多级交换网络缓存设计的一般规律与优化方法。
To optimize the design of multistage switches in data center,the effect of buffer size on switch performance was investigated systematically.Based on Markov chain,the calculation models for the throughput performance of central-stage buffered switch（CBS）with finite buffers were proposed.The size of re-sequencing buffer required was also deduced to ensure that no cells lost due to re-sequencing.The theoretical results of CBS switch performance were verified by simulation under different parameters.It is verified with considerable accuracy.Design requirements and optimization method for multi-stage Clos-network switches were summarized based on the results of theoretical analysis and simulation.
作者
高雅
潘伟涛
郑凌
AO Ya 1,PAN Wei-tao 2,ZHENG Ling 2(1.School of IoT Technology,Wuxi Institute of Technology,Wuxi 214121,China;2.State Key Labof Integrated Service Networks （ISN）,Xidian University,Xi ’an 710071,China)
出处
《计算机工程与设计》
北大核心
2018年第7期1846-1850,共5页
Computer Engineering and Design
基金
国家自然科学基金项目(61502204)
