Network slicing is a primary Fifth-Generation (5G) mobile networking technology to create virtualised and softwarised logical networks for various vertical businesses with diverging Quality of Service (QoS) requirements. Meanwhile, there is a clear gap in providing network slicing capabilities in 5G multi-tenant networks to enable guaranteed QoS in terms of well-defined network metrics for the multiple tenants sharing the same physical infrastructure. This article designs and implements novel software data path architecture that enables such network slicing with assured QoS in 5G multi-tenant networks. Highly flexible and customisable definition of network slicing is also allowed to be aligned with different existing definitions on demand and at run time. The proposed architecture has been prototyped based on the popular Open Virtual Switch (OVS), and empirically validated to demonstrate the deployment and management of network slices with the above capabilities. Intensive scalability results are provided where more than 8,192 network slices are achieved simultaneously with warranted QoS through performance isolation in terms of bandwidth and delay in a real softwarised 5G multi-tenant infrastructure at speeds of up to 10 Gbps.

中文翻译：

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SliceNetVSwitch：软件数据路径中 5G 多租户网络切片的定义、设计和实现


网络切片是一种主要的第五代 (5G) 移动网络技术，用于为具有不同服务质量 (QoS) 要求的各种垂直业务创建虚拟化和软件化逻辑网络。与此同时，在 5G 多租户网络中提供网络切片功能以确保共享相同物理基础设施的多个租户的明确定义的网络指标方面的服务质量方面存在明显差距。本文设计并实现了新颖的软件数据路径架构，可在 5G 多租户网络中实现此类网络切片并确保 QoS。网络切片的高度灵活和可定制的定义还可以根据需要和在运行时与不同的现有定义保持一致。所提出的架构基于流行的开放虚拟交换机（OVS）进行了原型设计，并进行了实证验证，以演示具有上述功能的网络切片的部署和管理。通过在真正的软件化 5G 多租户基础设施中以高达 10 Gbps 的速度实现带宽和延迟方面的性能隔离，同时实现超过 8,192 个网络切片并保证 QoS，从而提供密集的可扩展性结果。