EAGER: Generalized Network Slicing for NSF OpenCloud

该项目将展示软件定义网络（SDN）的通用网络切片的可行性，该网络切片将在同一物理基础设施上实现多个多租户虚拟云。 广义的网络切片针对的是网络运营商，而不是云的最终用户或租户。网络运营商要求网络切片能够指定性能、拓扑、网络可编程性和独立地址空间，并要求性能隔离。在这方面，与网络虚拟化的更广泛领域的其他努力相比，所提出的网络切片是独特的，并且可以独立于旨在支持数百和数千个云租户的网络虚拟化来使用。该项目将通过关注四个基本挑战来演示广义网络切片系统： - 拓扑映射。目标是允许实验者或租户指定其网络切片的拓扑，并将（虚拟）切片拓扑映射到物理网络上，并在物理和切片拓扑随时间变化时维护该映射。 - 地址空间映射。目标是允许租户使用她自己的私有地址空间，并将私有地址空间转换为物理地址空间，同时利用现有设备的数据包转发功能。 - 控制功能映射。目标是允许每个租户具有其虚拟网络切片的SDN风格编程能力，并将控制功能映射到网络的相应物理实例上。 - 性能隔离。目标是允许每个租户指定其网络切片的资源需求，并为每个虚拟切片分配和管理资源使用，以确保性能隔离。该项目将重点展示功能并通过实验获得宝贵的经验。这将有助于社区随后关注解决方案的性能、可扩展性、鲁棒性和真实的世界部署所需的其他属性。云计算正在迅速改变计算的面貌，因此，在更广泛的计算机科学社区中，对实验系统研究、教学和研究以及如何在科学和工程的广度上进行研究产生越来越大的影响。通过展示网络切片作为研究云的重要组成部分的可行性，该项目将为正在进行的关于云的讨论提供信息。的进化。

This project will demonstrate the feasibility of generalized network slicing for Software Defined Networks (SDN) that would enable multiple multi-tenant virtual clouds on the same physical infrastructure. The generalized network slicing is aimed at network operators as opposed to the end users or tenants of a cloud. The network operators require network slicing with the ability to specify performance, topology, network programmability, and independent address space and require performance isolation. In this regard the proposed network slicing is distinct compared to other efforts in the broader area of network virtualization and can be used independent of network virtualization aimed at supporting 100s and 1000s of cloud tenants.The project will demonstrate generalized network slicing system by focusing on four fundamental challenges: - Topology Mapping. Goal is to allow an experimenter or a tenant to specify topology of her network slice and map the (virtual) slice topology on the physical network and maintain this mapping as both physical and slice topologies change over time. - Address Space Mapping. Goal is to allow a tenant to use her own private address space and translate the private address space to the physical address space while exploiting packet forwarding capabilities of the existing devices. - Control Function Mapping. Goal is to allow each tenant to have SDN style programming capability of her virtual network slice and map control functions on to the corresponding physical instantiation of the network. - Performance Isolation. Goal is to allow each tenant to specify resource requirements for her network slice and allocate and police resource usage for each virtual slice to ensure performance isolation.The project will focus on demonstrating the functionality and gaining valuable experience with experimentation. This will help the community to subsequently focus on performance, scale, robustness, and other attributes of the solution that are needed for a real world deployment.The cloud is rapidly changing the face of computing, and as such, is having an increasing effect on experimental systems research, teaching and research in the broader Computer Science community, and how research is done across the breadth of science and engineering. By demonstrating the feasibility of network slicing as an important building block of a research cloud this project will inform the the on-going discussion about the cloud?s evolution.