NeTS: Small: Topology Switching for Data Centers and the Clouds Above

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。该项目解决了新兴云计算模式带来的复杂网络挑战。云计算提供商必须在共享的数据中心设施上运行一组不同的客户端应用程序，每个应用程序都有可能不同的网络需求。传统上，数据中心网络被配置为使用相同的路由过程来为数据中心中的每个流选择“最佳”路由，而不管应用程序如何。例如，以太网经常沿单个生成树执行最短路径路由沿着。然而，数据中心网络通常表现出显著的冗余;沿单个树沿着路由会留下许多未使用的路径，从而牺牲可靠性、隔离和性能方面的潜在增益。拓扑交换超越了这种一刀切的方法，提供了细粒度多拓扑网络的架构。它允许应用程序在数据中心内创建自定义路由系统;它们可以配置多个逻辑拓扑，这些拓扑一起根据其可靠性和性能要求进行定制。从云提供商的角度来看，拓扑交换网络通过在同一个共享物理网络上多路复用可能的数百个拓扑来提高效率。PI正在设计一个可扩展的拓扑交换路由平台，以便于探索应用程序接口、管理挑战、新颖的路由策略以及这种方法的性能优势。最终，该项目旨在开发一个灵活的拓扑管理原语，以提高管理员有效管理超大型数据中心部署的能力。 该研究还分析了多拓扑网络的好处和成本。该提案的其他成果包括公开发布拓扑交换平台，从而实现学术和工业反馈和采用。

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).This project addresses the complex networking challenge presented by the emerging cloud computing model. Cloud providers must run a diverse set of client applications, each with potentially different networking demands, on shared data-center facilities. Traditionally, a datacenter network is configured to use the same routing process to choose the "best" route for each flow in a datacenter, regardless of the application. For example, Ethernet frequently performs shortest-path routing along a single spanning tree. Yet data center networks typically exhibit significant redundancy; routing along a single tree leaves many paths unused, sacrificing potential gains in reliability, isolation and performance.Topology switching moves beyond this one-size-fits-all approach providing an architecture for fine-grained multi-topology networking. It allows applications to create custom routing systems within a data center; they can configure multiple logical topologies that, together, are tailored to their reliability and performance requirements. From a cloud provider's perspective, a topology-switched network increases efficiency by multiplexing potentially hundreds of topologies across the same shared physical network. The PIs are designing a scalable topology-switched routing platform that facilitates the exploration of application interfaces, management challenges, novel routing strategies, and performance benefits of this approach.Ultimately, the project aims to develop a flexible topology management primitive that improves administrators' ability to effectively manage extremely large datacenter deployments. The research is also analyzing the benefits and costs of multi-topology networking. Additional outcomes of this proposal include a public release of the topology switching platform, enabling academic and industrial feedback and adoption.