Collaborative Research: SI2-SSE: Pythia Network Diagnosis Infrastructure (PuNDIT)

在当今科学家分布式协作的世界中，提供有效的基础设施来将这些科学家群体与他们共享的计算和存储资源耦合在一起存在许多挑战。Pythia网络诊断基础设施（PuNDIT）项目将集成和扩展研究工具，并创建适合操作需求的健壮代码，以解决自动化检测和定位网络问题的困难挑战。PuNDIT将建立在事实标准perfSONAR网络测量基础设施的基础上，以收集和分析复杂的现实世界网络拓扑结构及其相应的网络指标，从一组症状中识别网络问题的可能特征。例如，如果症状表明沿路径的路由器配置的缓冲区太小而无法实现高性能，则Pythia将返回“小缓冲区”的诊断。如果症状表明特定网段的非充血性数据包丢失，则可以通知用户可能存在“坏网段”。PuNDIT的主要目标是以自动化的方式将复杂的网络指标转换为易于理解的诊断。

In today's world of distributed collaborations of scientists, there are many challenges to providing effective infrastructures to couple these groups of scientists with their shared computing and storage resources. The Pythia Network Diagnostic InfrasTructure (PuNDIT) project will integrate and scale research tools and create robust code suitable for operational needs to address the difficult challenge of automating the detection and location of network problems. PuNDIT will build upon the de-facto standard perfSONAR network measurement infrastructure to gather and analyze complex real-world network topologies coupled with their corresponding network metrics to identify possible signatures of network problems from a set of symptoms. For example if the symptoms suggest a router along the path has buffers configured too small for high performance, Pythia will return a diagnosis of "Small Buffer". If symptoms indicate non-congestive packet-loss for a particular network segment, the user can be notified of a possible "Bad Network Segment". A primary goal for PuNDIT is to convert complex network metrics into easily understood diagnoses in an automated way.