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- W2591828044 abstract "Data center networks are a key component to the explosive growth of cloud computing – enabling the utilization of tens to hundreds of thousands of co-located servers for large-scale computing and services. As applications and data sets continue to grow rapidly, the challenge for data center networks is to keep pace – by providing enough bandwidth while also lowering costs, increasing flexibility, and maintaining reliability. My thesis is that a key part of the answer is the network's wiring topology: topology has foundational cross-layer effects, and a small amount of intentional asymmetry in the topology can help data center networks meet that challenge. I present two complementary innovations that demonstrate this. The first, F10, is a co-design of the network topology and failover protocols to provide efficient, near-instantaneous, fine-grained, and localized recovery and rebalancing for common-case network failures. My results show that following network link and switch failures, F10 has 1/7th the packet loss of current schemes. The second innovation, Subways, proposes and evaluates a new method to add network capacity by connecting multiple network links per server in an overlapping topology. Using a simulation-based methodology, my work shows that Subways offers substantial performance benefits for popular application workloads: up to a 3.1x speedup in MapReduce and a 2.5x throughput improvement in memcache for a fixed average request latency, relative to an equivalent-bandwidth network that differs only in its wiring." @default.
- W2591828044 created "2017-03-16" @default.
- W2591828044 creator A5071842426 @default.
- W2591828044 date "2016-09-01" @default.
- W2591828044 modified "2023-09-23" @default.
- W2591828044 title "Improving Fault Tolerance and Performance of Data Center Networks" @default.
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