| 动态均衡的LB-BvN分组保序调度机制 |
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| 引用本文： | 扈红超,郭云飞,庞琳,卜佑军.动态均衡的LB-BvN分组保序调度机制[J].通信学报,2011,32(4):57-65. |
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| 作者姓名： | 扈红超 郭云飞 庞琳 卜佑军 |
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| 作者单位： | 解放军信息工程大学国家数字交换系统工程技术研究中心,河南郑州,450002 |
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| 基金项目： | 国家高技术研究发展计划("863"计划)基金资助项目，国家重点基础研究发展计划("973"计划)基金资助项目 |
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| 摘 要： | 针对LB-BvN交换结构的分组乱序问题,探讨了LB-BvN交换结构分组保序的约束条件.从网络流量的传输特性出发提出了解决LB-BvN交换结构分组乱序的DFA(dynamic flow assignment)算法和DFS(dynamicflowlet switching)算法.DFA算法以流为单元分派交换路径,能够严格确保流分组的保序交换;DFS算法是对DFA算法的优化,以流簇(fiowlet)为单元进行交换以保证流簇的保序,进而确保属于同一条流的分组保序.DFA和DFS算法只需在线路接口卡上维护少量的流状态信息即可实现保序交换,仿真结果表明DFA算法和DFS算法具有良好的时延、时延抖动和吞吐量性能.
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| 关 键 词： | 交换结构 调度策略 保序 LB-BvN 流簇 |
Dynamic traffic balancing scheme for LB-BvN to guarantee in-order packet delivering |
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| HU Hong-chao,GUO Yun-fei,PANG lin,BU You-jun.Dynamic traffic balancing scheme for LB-BvN to guarantee in-order packet delivering[J].Journal on Communications,2011,32(4):57-65. |
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| Authors: | HU Hong-chao GUO Yun-fei PANG lin BU You-jun |
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| Affiliation: | HU Hong-chao,GUO Yun-fei,PANG lin,BU You-jun(NDSC,Information Engineering University,Zhengzhou 450002,China) |
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| Abstract: | Due to its outstanding extensibility performance,the LB-BvN switch had attracted much attention recently in the switching technology academia.However,the problem that it might disturb the sequences of packets made it not so applicable in practice.To overcome this,the principles for guaranteeing packets in order switching were first discussed.Then,based on these principles,it focused on research on the transmission characteristics in network traffic and came up with DFA and DFS algorithms.DFA assigned the sw... |
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| Keywords: | switching fabric scheduling policy in order LB-BvN flowlet |
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