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An Incrementally Scalable and Cost-Efficient Interconnection Structure for Data Centers

机译：数据中心的增量可扩展且经济高效的互连结构

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摘要

The explosive growth in the volume of data storing and complexity of data processing drive data center networks (DCNs) to become incrementally scalable and cost-efficient while to maintain high network capacity and fault tolerance. To address these challenges, this paper proposes a new structure, called Totoro, which is defined recursively and hierarchically: dual-port servers and commodity switches are used to make Totoro affordable; a bunch of servers are connected to an intra-switch to form a basic partition; to construct a high-level structure, a half of the backup ports of servers in the low-level structures are connected by inter-switches in order to incrementally build a larger partition. Totoro is incrementally scalable since expanding the structure does not require any rewiring or routing alteration. We further design a distributed and fault-tolerant routing protocol to handle multiple types of failures. Experimental results demonstrate that Totoro is able to satisfy the demands of fault tolerance and high throughput. Furthermore, architecture analysis indicates that Totoro balances between performance and costs in terms of robustness, structural properties, bandwidth, economic costs and power consumption.
机译：数据存储量的爆炸性增长和数据处理的复杂性驱使数据中心网络（DCN）逐渐增加规模和成本效益，同时保持高网络容量和容错能力。为了应对这些挑战，本文提出了一种称为Totoro的新结构，该结构以递归和分层的方式定义：双端口服务器和商用交换机用于使Totoro负担得起；一堆服务器连接到交换机内部以形成基本分区。为了构建高级结构，低级结构中服务器的一半备份端口通过交换机间连接，以便逐步构建更大的分区。由于扩展结构不需要重新布线或更改布线，因此Totoro具有增量可伸缩性。我们进一步设计了一种分布式且容错的路由协议来处理多种类型的故障。实验结果表明，龙猫能够满足容错和高吞吐量的需求。此外，架构分析表明，在坚固性，结构特性，带宽，经济成本和功耗方面，龙猫在性能和成本之间取得了平衡。

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