EAGER: Generalized Network Slicing for NSF OpenCloud

该项目将演示软件定义网络（SDN）通用网络切片的可行性，该切片将在相同的物理基础设施上启用多个多租户虚拟云。广义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具有指定性能、拓扑、网络可编程性和独立地址空间的能力，并要求性能隔离。在这方面，建议的网络切片与更广泛的网络虚拟化领域中的其他工作不同，可以独立于旨在支持100和1000个云租户的网络虚拟化而使用。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。目标是允许实验人员或租户指定其网络片的拓扑，并在物理网络上映射（虚拟）片拓扑，并在物理和片拓扑随时间变化时维护此映射。—地址空间映射。目标是允许租户使用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拥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。—性能隔离。目标是允许每个租户指定其网络片的资源需求，并为每个虚拟片分配和管理资源使用情况，以确保性能隔离。该项目将专注于展示功能，并通过实验获得宝贵的经验。这将有助于社区随后关注实际部署所需的解决方案的性能、规模、健壮性和其他属性。云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、教学和研究的影响越来越大，以及如何在科学和工程的广度上进行研究。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。年代进化。

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.