The invention discloses a
transmission network fault positioning method,
system and device and a storage medium, and relates to the field of communication, and the method comprises the steps: firstly, collecting
network data to construct a multi-
granularity network topology model, then obtaining original alarm data, analyzing the topology association relationship between alarms, and obtaining a multi-
granularity network topology model; and mining horizontal peer association and vertical upstream and downstream association among the alarm objects, and identifying multi-alarm data of each alarm object. Thirdly, constructing an associated alarm
directed graph based on the multi-alarm data, and performing associated alarm compression on the associated alarm
directed graph to obtain a compressed alarm set; and finally, constructing an alarm propagation
graph based on the compressed alarm set and the multi-
granularity network topology model, querying the alarm propagation graph through a reverse hierarchical
sorting algorithm, and determining a root alarm. According to the method, through innovative methods such as topological modeling,
association mining, graph compression and reverse sequencing, alarm data and a topological structure are closely combined, an alarm propagation rule is analyzed, and fault root causes are diagnosed.