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arXiv 1503.04317cs.NI
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HybridTE:用于极低成本软件定义数据中心网络的流量工程

HybridTE: Traffic Engineering for Very Low-Cost Software-Defined Data-Center Networks

Philip Wette, Holger Karl

摘要:

现代数据中心的规模不断增加。由于使用全平分带宽网络互连数据中心中的所有机器是不经济的,因此必须开发技术来提高数据中心网络的效率。软件定义网络范式为此类环境中的集中式流量工程(TE)打开了大门。到目前为止,已经有许多针对SDN控制的数据中心的TE提案,它们都运行得很好。然而,这些技术要么使用大量的流表条目,要么使用高的流安装率,这使得可用的交换硬件更简单,要么它们需要定制的或非常昂贵的线端设备才能在实践中使用。我们提出HybridTE,TE技术,使用(不确定)的信息大流量。使用这些额外的信息,我们的技术具有非常低的硬件要求,同时保持比现有的TE技术更好的性能。这使我们能够构建非常低成本、高性能的数据中心网络。

英文摘要:

The size of modern data centers is constantly increasing. As it is not economic to interconnect all machines in the data center using a full-bisection-bandwidth network, techniques have to be developed to increase the efficiency of data-center networks. The Software-Defined Network paradigm opened the door for centralized traffic engineering (TE) in such environments. Up to now, there were already a number of TE proposals for SDN-controlled data centers that all work very well. However, these techniques either use a high amount of flow table entries or a high flow installation rate that overwhelms available switching hardware, or they require custom or very expensive end-of-line equipment to be usable in practice. We present HybridTE, a TE technique that uses (uncertain) information about large flows. Using this extra information, our technique has very low hardware requirements while maintaining better performance than existing TE techniques. This enables us to build very low-cost, high performance data-center networks.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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