IRNC: Core Improvement: AtlanticWave-SDX: A Distributed Experimental SDX Supporting Research, Experimental Deployments, and Interoperability Testing on Global Scales

开放式交换点（oxp）是连接和促进研究和教育网络之间数据交换的交汇点。它们是长距离数据传输的关键网络基础设施，将数据流从一个研发网络切换到另一个研发网络，最终到达目的地。例如，来自维拉鲁宾天文台的数据将在从南半球移动到北半球的过程中经过6个oxp。为了最大限度地减少事件对网络服务（硬件故障和软故障）的影响，实现跨oxp数据流传输的操作变得越来越重要。这些数据流的端到端网络路径不受任何单个组织的控制。多个研发网络运营商必须协调建立地理上分布的端到端路径——这项工作可能需要几天到几周的时间。佛罗里达国际大学（FIU）、南加州大学信息科学研究所（USC-ISI）和北卡罗来纳大学教堂山分校（RENCI）正在进一步推进AtlanticWave-SDX：一种分布式实验SDX，支持国内和国际规模的研究、实验部署、原型设计和互操作性测试。AtlanticWave-SDX利用了最初AtlanticWave-SDX项目的创新，引入了新的功能，通过增加带内网络遥测技术支持的网络服务的智能闭环控制，使oxp能够对计划外的网络事件做出反应。AWAVE-SDX由两个部分组成：一个具有光超级通道的基础设施开发组件，用于在R&amp骨干网之间重构和重新配置网络容量；通过利用美国、智利、巴西和南非的oxp，构建分布式洲际实验性SDX的创新组件。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

Open Exchange Points (OXPs) serve as meet points for connecting and facilitating the exchange of data between Research and Education (R&E) networks. They are critical cyberinfrastructure in the transit of data over long geographical distances, switching data flows from one R&E network to the next, to its destination. For example, data from the Vera Rubin Observatory will transit 6 OXPs as it moves from the southern to northern hemispheres. Operationalizing the transit of data flows across OXPs is increasingly important to minimize the impact from events on network services (hardware failures and soft failures). End-to-end network paths for these data flows are not under the control of any individual organization. Multiple R&E network operators must coordinate to establish geographically distributed end-to-end paths – an effort that can take days to weeks.Florida International University (FIU), University of Southern California – Information Sciences Institute (USC-ISI) and University of North Carolina at Chapel Hill - RENCI are furthering AtlanticWave-SDX: a distributed experimental SDX, supporting research, experimental deployments, prototyping and interoperability testing, on national and international scales. AtlanticWave-SDX leverages innovations from the initial AtlanticWave-SDX project, introducing new capabilities, enabling OXPs to react to unplanned network events by adding intelligent closed-loop control of network services powered by in-band network telemetry.AWAVE-SDX is comprised of two components: An infrastructure development component with optical super channels to reframe and reprovision network capacity between R&E backbone networks; An innovation component to build a distributed intercontinental experimental SDX by leveraging OXPs in the U.S., Chile, Brazil, and S. Africa.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.