学术报告:Police Aware In-band Network Telemetry for SDN Fault Localization.

发布人:张璐发布时间:2019-06-10动态浏览次数:13

报告人:美国伊利诺伊州立大学计算机系系主任唐永宁教授

时间:613日上午1000

地点:九龙湖校区计算机楼142会议室


AbstractIntelligent Fault localization for SDN becomes oneof the most critical but difficult tasks. In this talk, I introduceanapproach called Policy-Aware In-band Network Telemetry(PAINT) to tackle SDN fault localization. In the PAINT system,network operators define and deploy network services using ahigh-level ServiceProvisioning Language (SPL). Then, PAINT canautomatically parse the service policy to infer the causal relationshipbetween service related network components and end-to-end service-level observable symptoms. Based on the causality model, PAINT deploys monitoring instruments for the symptoms.PAINT utilizes a dynamically created Symptom-Fault-Telemetrymodel to incorporate In-band Network Telemetry (INT) actionssystematically into the fault reasoning process to improve theefficiency and accuracy of fault localization for SDN. PAINT hasbeenevaluated in a simulation environment for its accuracy and scalability with very positive results.


报告人简历:Yongning Tang isa professor,the headof network engineering program and thegraduate director in the school ofinformation technology at Illinois State University.His primary research areas arefault diagnosis in modern networkedsystems andartificalintelligence onnetworkoperations.