National Dark Fibre Facility- Equipment Enhancement

国家暗光纤设施-设备增强

• 批准号: EP/X034879/1
• 负责人: Alwyn Seeds
• 金额: $ 61.8万
• 依托单位: University College London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FX034879%2F1
• 关键词: National; Dark; Fibre; Facility; Equipment

The National Dark Fibre Facility (NDFF) provides the UK National Research Facility for dark fibre network research. A dark fibre network is a communications network, where it is possible to access and control the network at the optical layer, Layer1 (physical layer) in the seven layer Open Systems Interconnection (OSI) model of communications networks which underpins the internet. NDFF provides a fully remotely configurable, flexible and high capacity research facility, building upon the success of the National Dark Fibre Infrastructure Service (NDFIS) dark fibre network (2013-2018). This allows UK universities and their industrial collaborators to develop and demonstrate future networks which require access to or control of the optical layer (OSI Layer1). NDFF comprises: 1. A dark fibre network of scale sufficient for experiments representative of real-world applications (>1,000 km). Users are able to connect their equipment directly to the installed fibres and control the optical layer, allowing experiments on new techniques, such as quantum encoded data, adaptive spectrum slicing and Software Defined Networks (SDN). The equipment included in this proposal supports quantum secured networking, sensing and experiments with novel spectrum usage.2. User experiment areas at multiple Access Points to interface directly with NDFF dark fibre. This proposal includes provision for extension of the dark-fibre network to assist in meeting user needs. Interconnection for traffic generation and experiment control is also possible UK-wide at Layer2 through services such as Janet Netpath+.3. Remotely programmable amplifiers, switches and dispersion compensation modules which enable the transmission characteristics of the network to be varied and allow dynamic configuration of the network topology by users. L-Band operation over part of the network is also supported.4. Wavelength Selective Switches (WSS) to split optical channels into separate optical fibres (or merge them into one fibre). A Flexgrid WSS gives user defined channel widths, enabling research on new utilisation models for the optical spectrum, increasing available logical topologies and allowing concurrent experiments using different optical wavelengths.5. A remotely configurable Layer2 and above network to enable research into dynamic and intelligent network management which will interface with 6G Wireless research under this proposal. 6. An SDN and Network Function Virtualisation (NFV) research platform for UK researchers, enabling them to upload network policies directly, monitoring and manipulating the optical properties of the network. UK researchers are able to develop and test networks having optimised latency, traffic grooming, energy consumption or security properties.7. A distributed processing infrastructure by linking sites that host servers, storage, memory and sensing. This will provide opportunities to study distributed Cloud and Fog infrastructures connected by high capacity reconfigurable optical networks. It will also provide nerve nodes that can perform network analytics offering users a new level of network programmability and adaptation.8. The ability to test concepts in network security and resilience across all seven OSI model layers, something that is impossible with other networks. This is of particular importance as networks are starting to introduce software control and flexibility at Layer1, creating new security and resilience challenges for network control. 9. Training of CDT Students and other researchers using dedicated research and technician support. Administration, user interface and dissemination are the responsibility of a dedicated facility manager. The proposed equipment enhancement, which is the result of extensive consultation with Users and benefits from the advice of experts from the NDFF External Advisory Board, will provide improved access, operational and measurement facilities.

国家暗纤维设施（NDFF）为暗纤维网络研究提供了英国国家研究设施。暗光纤网络是一种通信网络，其中可以在支撑互联网的通信网络的七层开放系统互连（OSI）模型中的光学层、第1层（物理层）处访问和控制网络。NDFF提供完全远程可配置，灵活和高容量的研究设施，建立在国家暗光纤基础设施服务（NDFIS）暗光纤网络（2013 - 2018）的成功基础上。这使得英国大学及其工业合作者能够开发和演示需要访问或控制光学层（OSI第1层）的未来网络。NDFF包括：1.暗光纤网络的规模足以进行代表实际应用的实验（> 1，000公里）。用户可以将他们的设备直接连接到安装的光纤并控制光学层，从而允许对新技术进行实验，例如量子编码数据，自适应频谱切片和软件定义网络（SDN）。该提案中包括的设备支持量子安全网络，传感和新频谱使用实验。用户在多个接入点的实验区直接与NDFF暗光纤接口。这项建议包括为扩大暗光纤网络提供经费，以协助满足用户的需要。通过Janet Netpath +.3等服务，在第2层也可以在英国范围内实现流量生成和实验控制的互连。可远程编程的放大器、开关和色散补偿模块，使网络的传输特性能够变化，并允许用户动态配置网络拓扑。还支持部分网络上的L波段操作。4.波长选择开关（WSS）将光通道分成单独的光纤（或将它们合并到一根光纤中）。Flexgrid WSS提供用户定义的信道宽度，使研究新的光谱利用模型成为可能，增加可用的逻辑拓扑，并允许使用不同的光波长进行并行实验。5.一个远程可配置的第2层及以上网络，以支持动态和智能网络管理的研究，该研究将与本提案下的6G无线研究对接。6.为英国研究人员提供的SDN和网络功能虚拟化（NFV）研究平台，使他们能够直接上传网络策略，监控和操纵网络的光学特性。英国研究人员能够开发和测试具有优化延迟、流量疏导、能耗或安全属性的网络。通过链接托管服务器、存储、内存和传感的站点来实现分布式处理基础设施。这将为研究通过高容量可重构光网络连接的分布式云和雾基础设施提供机会。它还将提供可以执行网络分析的神经节点，为用户提供新级别的网络可编程性和适应性。能够跨所有七个OSI模型层测试网络安全和弹性概念，这在其他网络中是不可能的。这一点尤其重要，因为网络开始在第1层引入软件控制和灵活性，为网络控制带来了新的安全性和弹性挑战。9.利用专门的研究和技术支持培训CDT学生和其他研究人员。管理、用户界面和传播由专门的设施管理员负责。拟议的设备改进是与用户广泛协商的结果，并受益于NDFF外部咨询委员会专家的建议，将提供更好的访问、操作和测量设施。