NeTS-FIND: Architectural Support for Network Trouble-Shooting

故障排除是网络操作的固有组成部分：无论网络设计得多么好，最终总会出现故障，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临时拼凑起来的技术。然而，随着网络成为现代生活中至关重要的、无处不在的组成部分，同时网络的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增加。这两方面的压力突出了在开发网络架构时将故障排除集成为一流公民的迫切需要。有了一组一般原则，我们正在构建一组用于故障排除的关键构建块。故障排除的任务是一个范围广泛和折衷的轨迹。因此，我们正在开发的方法并不局限于特定的领域（例如，web冲浪性能或路由连接故障），而是被设计为跨架构普遍适用，并且随着网络结构和用途的不可避免的变化而发展。我们的目标是让我们的经验告知更广泛的社区，比如NSF的未来互联网设计（FIND）社区，关于将故障排除纳入新体系结构的方法，并反过来从这些其他体系结构工作中获得需求和协同见解。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。由于故障排除的范围很广，信息的隐私成为一个考虑因素，因此我们在整个工作中都在开发隐私意识原则。

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.