NeTS-FIND: Architectural Support for Network Trouble-Shooting

故障排除是网络运行的固有部分：无论网络设计得多么好，最终都会出现故障，而在大型网络中，故障总是存在的。在过去，故障排除主要依赖于事后拼凑起来的临时技术。然而，随着网络成为现代生活中重要的、无处不在的组件，同时其规模和复杂性也在不断增长，故障排除的重要性和难度都在加剧。这两种压力突显了在开发网络体系结构时迫切需要将故障排除作为一等公民来集成。我们正在构建一套用于故障排除的关键构建块，以一套一般原则为基础。故障排除的任务是大范围和折衷的轨迹之一。因此，我们正在开发的方法并不局限于特定的领域(例如，网络冲浪性能或路由连接故障)，而是被设计为普遍适用于跨体系结构，并随着网络的结构和用途不可避免地变化而演变。我们的目标是让我们的体验既让更广泛的社区，如NSF的未来互联网设计(Find)社区，了解如何将故障排除融入新的架构，并反过来从这些其他架构工作中获取需求和协同见解。网络的健康和故障具有广泛的社会影响，故障排除方面的改进和突破将产生相应的影响。由于故障排除的广泛性，信息隐私成为一个考虑因素，因此我们在整个工作中都在制定隐私意识原则。

Troubleshooting is an inherent part of network operation: no matter how well networks are designed, something eventually fails, and in large networks, failures are ever-present. In the past, troubleshooting has mostly relied on ad hoc techniques cobbled together as afterthoughts. However, both the importance and difficulty of troubleshooting has intensified as networks have become crucial, ubiquitous components of modern life, while at the same time their size and complexity continues to grow. These twin pressures highlight the urgent need to integrate troubleshooting as a first-class citizen when developing a network architecture.Armed with a set of general principles, we are building a set of key building blocks for troubleshooting. The task of troubleshooting is one of vast range and eclectic trajectories. As such, the approaches we are developing are not limited to specific domains (e.g., web surfing performance, or routing connectivity failures) but are designed to be generally applicable across architectures, and evolvable as a network's structure and uses inevitably change. The goal is for our experiences to both inform broader communities, such as NSF's Future Internet Design (FIND) community, about ways to weave troubleshooting into new architectures, and in turn to take from these other architectural efforts both requirements and synergistic insights.The health and failure of networks is of broad societal impact and improvements and breakthroughs in troubleshooting will have corresponding impact. Due to the wide reach of troubleshooting, privacy of information becomes a consideration, so we are developing privacy-aware principles throughout our work.