| 路径差异敏感的包散射策略机制 |
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| 引用本文： | 王进,李琪,黄家玮.路径差异敏感的包散射策略机制[J].计算机工程与应用,2019,55(5):72-75. |
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| 作者姓名： | 王进 李琪 黄家玮 |
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| 作者单位： | 湖南广播电视大学 网络技术系,长沙,410004;中南大学 信息科学与工程学院,长沙,410083 |
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| 摘 要： | 数据中心网络中随机包散射设计策略有效地提升了链路的多路径利用率，但是容易造成乱序问题。介绍了由数据包乱序所引起的“伪丢失”现象，设计了基于分类路径的自适应包散射策略（Cparps），根据路径的队列长度对路径进行分类，并将不同数据流隔离在不同类型的路径上进行随机散射。实验结果表明，在对称和非对称拓扑下Cparps协议的乱序次数和数据包个数都相对较少，说明Cparps可以有效缓解数据包的乱序。
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| 关 键 词： | 随机包散射策略 负载均衡 等价多路径(ECMP) 传输控制协议(TCP) flowlet |
Path Difference Aware Packet Scattering Strategy |
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| WANG Jin,LI Qi,HUANG Jiawei.Path Difference Aware Packet Scattering Strategy[J].Computer Engineering and Applications,2019,55(5):72-75. |
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| Authors: | WANG Jin LI Qi HUANG Jiawei |
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| Affiliation: | 1.Network Technology Department, Hunan Radio and TV University, Changsha 410004, China
2.School of Information Science and Engineering, Central South University, Changsha 410083, China |
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| Abstract: | The random packet scattering strategy in data center networks effectively improves multipath utilization, but is prone to cause disorder. This paper introduces the pseudo loss caused by packet disorder and proposes an adaptive packet scattering strategy（Cparps） based on the classification path. The paths are classified according to the queue lengths, and the flows are isolated on different types of paths for random scattering. The experimental results show that the number of disorder events and data packets are reduced in symmetric and asymmetric topology, indicating that Cparps can effectively alleviate the disorder packets. |
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| Keywords: | random packet spraying load balance Equal-Cost Multi-Path（ECMP） Transmission Control Protocol（TCP） flowlet |
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