NeTS: Large: Collaborative Research:Programmable Inter-Domain Observation and Control

互联网是现代社会必不可少的一部分，在广泛的教育、商业、军事和社会活动中发挥着至关重要的作用。然而，今天的网络运营商只有有限的能力来观察和控制用于在互联网上传输流量的路径。例如，虽然几个网络合作通常是有益的。例如，内容提供商和蜂窝网络共同选择从内容到客户的最佳路径——现有的互联网路由协议使信息共享或合作选择路由变得困难。这些限制导致了一系列问题，包括路径稳定性下降、性能下降和服务中断。该项目将开发一个名为IN-CONTROL的系统，该系统将来自参与网络和活动测量的信息聚合到域间网络信息库（iNIB）中。iNIB为运营商提供了一个统一的接口，用于观察全局转发路径，并提供了一个丰富的控制接口，用于发出请求以引导流量沿着首选路径运行。为了构建iNIB，该项目重点关注以下任务：(i)开发基于来源的技术，以便从对可能不可信的数据执行的计算中获得可靠的结果；（ii）设计可部署的机制，用于观察和控制互联网转发路径；（iii）构建可扩展的实现，其中包含优化，以减少回答iNIB查询的资源需求。本研究的智力价值在于为观察和控制Internet转发路径开发可靠的抽象，以及可以在当前Internet上轻松部署的可扩展实现。更广泛的影响包括减少互联网的脆弱性，扩大跨学科研究人员的社区，研究与域间网络有关的问题。该项目还为本科生和代表性不足的群体成员提供研究经验。

The Internet is an essential part of modern society, playing a vital role in a wide range of educational, commercial, military, and social activities. However, network operators today have a limited ability to observe and control the paths used to carry traffic across the Internet. For example, although it is often beneficial for several networks to cooperate-e.g., a content provider and cellular network jointly picking the best paths from content to customers-existing Internet routing protocols make it difficult to share information or collaborate to select routes. These limitations contribute to a host of problems, including decreased path stability, degraded performance, and service outages. This project will develop a system called IN-CONTROL that aggregates information from participating networks and active measurements into an inter-domain network information base (iNIB). The iNIB presents operators with a unified interface for making observations about global forwarding paths and a rich control interface for issuing requests to steer traffic along preferred paths. To build the iNIB, the project is focusing on the following tasks: (i) developing provenance-based techniques to obtain reliable results from computations performed over potentially-untrustworthy data (ii) designing deployable mechanisms for observing and controlling Internet forwarding paths, and (iii) building a scalable implementation that incorporates optimizations to reduce resource demands for answering iNIB queries. The intellectual merit of this research lies in developing reliable abstractions for observing and controlling Internet forwarding paths and a scalable implementation that can be readily deployed on the current Internet. The broader impacts include reducing the fragility of the Internet, and broadening the interdisciplinary community of researchers working on problems related to inter-domain networking. This project also provides research experiences for undergraduate students and members of under-represented groups.