CI-New: Collaborative Research: An Open Platform for Internet Routing Experiments

CI-New：协作研究：互联网路由实验的开放平台

• 批准号: 1405871
• 负责人: David Choffnes
• 金额: $ 36.06万
• 依托单位: Northeastern University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1405871&HistoricalAwards=false
• 关键词: CI; New; Collaborative; Research; Open

The path that data takes across the Internet from its source to its destination is a critical determiner of the service quality that a user experiences. The path is controlled via routing, which is influenced by traffic engineering and policy. Therefore, routing problems--instability, failures, circuitous paths--have a critical impact on performance. Despite these issues, researchers and network operators have difficulty studying Internet routing. Available vantage points provide little visibility into how the networks interconnect, making it difficult to assess the resilience and performance of existing paths. On top of this limited visibility, researchers lack means to experiment with alternate paths.The infrastructure developed by this project will allow researchers and network operators to observe Internet paths and to experiment with alternate approaches to routing. The infrastructure consists of two synergistic tools: Transit Portal allows an experimenter to make route announcements that influence current routing, and Reverse Traceroute allows the experimenter to measure the resulting paths. The PIs have used early versions of the infrastructure to improve Internet performance, reliability, and diagnosis. The project opens the infrastructure to use by the networking community and in classrooms, providing a basis for understanding and improving the Internet. The key components are 1) increasing the number of Transit Portal sites; 2) adding support for Transit Portal experiments that join fully emulated networks to the actual Internet; 3) upgrading and hardening the Reverse Traceroute code so that it is useable by the broader community; and 4) improving experiment workflow by scheduling and reusing measurements more efficiently.

数据从其源到目的地跨越互联网的路径是用户体验到的服务质量的关键确定器。该路径是通过路由控制的，该路由受交通工程和政策的影响。因此，路由问题 - 稳定，故障，巡回路径 - 对性能产生关键的影响。尽管存在这些问题，研究人员和网络运营商很难研究互联网路由。可用的有利位点几乎没有可见性的网络互连，因此很难评估现有路径的弹性和性能。除了这种有限的知名度外，研究人员缺乏尝试替代路径的手段。该项目开发的基础架构将使研究人员和网络运营商能够观察互联网路径并尝试替代路由方法。基础架构由两种协同工具组成：公交门户允许实验者进行影响当前路由的路线公告，而反向跟踪器允许实验者测量所得路径。 PI已使用基础设施的早期版本来提高互联网性能，可靠性和诊断。该项目打开了网络社区和教室使用的基础架构，为理解和改善互联网提供了基础。关键组件是1）增加过境门户网站的数量； 2）增加对将完全模拟网络连接到实际互联网的公交门户实验的支持； 3）升级和硬化反向示踪代码，以便更广泛的社区可以使用； 4）通过更有效地调度和重复使用测量来改善实验工作流程。