Telecommunication providers continuously evolve their network infrastructure by increasing performance, lowering time to market, providing new services, and reducing the cost of the infrastructure and its operation. Network function virtualization (NFV) on commodity hardware offers an attractive, low‐cost platform to establish innovations much faster than with purpose‐built hardware products. Unfortunately, implementing NFV on commodity processors does not match the performance requirements of the high‐throughput data plane components in large carrier access networks. Therefore, programmable hardware architectures like field programmable gate arrays (FPGAs), network processors, and switch silicon supporting the flexibility of the P4 language offer a promising way to account for both performance requirements and the demand to quickly introduce innovations into networks. In this article, we propose a way to offer residential network access with programmable packet processing architectures. On the basis of the highly flexible P4 programming language, we present a design and open source implementation of a broadband network gateway (BNG) data plane that meets the challenging demands of BNGs in carrier‐grade environments. In addition, we introduce a concept of hybrid openBNG design, realizing the required hierarchical quality of service (HQoS) functionality in a subsequent FPGA. The proposed evaluation results show the desired performance characteristics, and our proposed design together with upcoming P4 hardware can offer a giant leap towards highest performance NFV network access.

中文翻译：

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OpenBNG：可编程数据平面硬件上的中心局网络功能

电信提供商通过提高性能，缩短上市时间，提供新服务并降低基础架构及其运营成本来不断发展其网络基础架构。商用硬件上的网络功能虚拟化（NFV）提供了一个有吸引力的低成本平台，其建立创新的速度比专用硬件产品快得多。不幸的是，在商用处理器上实现NFV不能满足大型运营商接入网络中高吞吐量数据平面组件的性能要求。因此，诸如现场可编程门阵列（FPGA），网络处理器，支持P4语言灵活性的开关硅提供了一种有前途的方式来满足性能要求和快速将创新引入网络的需求。在本文中，我们提出了一种通过可编程的数据包处理体系结构提供住宅网络访问的方法。在高度灵活的P4编程语言的基础上，我们提出了宽带网络网关（BNG）数据平面的设计和开源实现，可以满足运营商级环境中BNG的挑战性需求。此外，我们引入了混合openBNG设计的概念，在后续的FPGA中实现了所需的分层服务质量（HQoS）功能。拟议的评估结果显示了所需的性能特征，