绘制审查韧性与全球互联网可达性图谱：一种定量方法
Charting Censorship Resilience and Global Internet Reachability: A Quantitative Approach
AI总结：
本文提出一种基于定量网络指标的评估方法，在路由层面比较BGP/IP、覆盖网络和SCION架构，证明互联网拓扑显著影响审查韧性与全球可达性，并指出多路径与路径感知可提升韧性、降低路由集中化。
摘要：
互联网审查和全球互联网可达性是当今互联网的热门话题。然而，网络拓扑和互联网架构对这些方面的影响尚未得到充分探索。为了以客观基础为政策讨论提供信息，我们提出了一种使用定量网络指标评估审查韧性和全球互联网可达性的方法，这些指标适用于当前的BGP/IP网络以及替代性互联网网络架构。我们在多个国家的网络拓扑上设计并实例化了该指标，比较了BGP/IP网络、使用路径点机制绕过不良节点的覆盖网络，以及路径感知的互联网架构SCION。该方法的新颖之处在于提供了一种能够在路由层面分析互联网这些方面的指标，同时考虑了路由协议和架构的固有属性。我们证明了互联网拓扑至关重要，并强烈影响审查韧性和全球互联网的可达性。最后，我们认为，访问多条路径并具备路径感知能力，与当前互联网相比，可以实现更高水平的审查韧性，并减少互联网路由的集中化。
英文摘要：
Internet censorship and global Internet reachability are prevalent topics of today's Internet. Nonetheless, the impact of network topology and Internet architecture to these aspects of the Internet is under-explored. With the goal of informing policy discussions with an objective basis, we present an approach for evaluating both censorship resilience and global Internet reachability using quantitative network metrics, which are applicable to current BGP/IP networks and also to alternative Internet network architectures. We devise and instantiate the metric on the network topology of multiple countries, comparing the BGP/IP network, an overlay network using a waypoint mechanism for circumventing undesired nodes, and the path-aware Internet architecture SCION. The novelty of the approach resides in providing a metric enabling the analysis of these aspects of the Internet at the routing level, taking into account the innate properties of the routing protocol and architecture. We demonstrate that the Internet topology matters, and strongly influences both censorship resilience and reachability to the global Internet. Finally, we argue that access to multiple paths accompanied with path-awareness could enable a higher level of censorship resilience compared to the current Internet, and reduce the centralization of Internet routing.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
