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| 可扩展路由器控制平面的高性能通信模型 |
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徐恪1, 吴鲲1, 王青青2
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1.清华大学,计算机科学与技术系,北京,100084;2.兰州大学,信息科学与工程学院,甘肃,兰州,730000
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| 摘要: |
| 可扩展路由器控制平面节点间通信的瓶颈问题是制约软件体系结构大规模扩展的关键因素.针对此问题,在传统的软件体系结构的支撑模型中引入了传输适配子层的结构,上行的数据流经特征抽取与已注册的任务进行模式匹配,从而完成了对控制信息流基于内容的分类与分流,提高了其有效通信率.进一步根据任务的分布率、分散数和流量率这3个特征对模型进行了性能分析,表明了适配层的引入可以消除面间冗余流量和通信的可扩展瓶颈.最后通过实验验证了理论分析的正确性. |
| 关键词: 路由器 路由器软件体系结构 可扩展性 传输适配子层 |
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| 基金项目:Supported by the National Natural Science Foundation of China under Grant No.60473082 (国家自然科学基金); the National Basic Research Program of China under Grant No.2003CB314801 (国家重点基础研究发展计划(973)) |
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| High Performance Control-Plane Communication Model for Scalable Routers |
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XU Ke,WU Kun,WANG Qing-Qing
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| Abstract: |
| The inter-nodes communication bottleneck has been a key factor that restricts the large-scale expanding of scalable router's software architecture.To solve the problem,this paper introduces a transmission adapted sub-layer in the supporting model of traditional software architecture.Through feature extracting of the up-going data stream and pattern matching with registered task,data stream can then be classified and divided based on the content of information to increase the effective communication rate.The paper further analyzes the model's performance from task's three characteristics:Distribution rate,spread number and traffic rate,and provides an optimized task dispatching reference.It shows that the introduced transmission adapted sub-layer can reduce inter-layer redundant flow and extensibility bottleneck of communication.Finally,the presented experiment verifies the theoretical analysis. |
| Key words: router router software architecture scalability transmission adapted sub-layer |
