1. A computing system comprising: one or more processors; memory; and one or more hierarchical analytics modules stored in the memory and executable by the one or more processors to: perform data queries on one or more networks to obtain network data, the network data including traffic flow data including: traffic across links or devices of the one or more networks during an impact event, and a ratio of median traffic across the links or the devices during the impact event to traffic across the links or the devices during a time prior to the impact event; receive a filter item identifying or relating to one or more of a location, a topology level, a device type, a data center, an application or a service; filter the network data based at least in part on the filter item; perform a first set of analyses on the network data to produce first results representing probable symptoms of the one or more networks, wherein the first set of analyses are performed based at least in part on the filtering, the first set of analyses including: determining, based at least in part on a performance of the one or more networks after the impact event, an impact of the impact event on the links or the devices; and determining which of the links or the devices are associated with trouble tickets and/or failures, the first results corresponding to the links or the devices having a greatest number of the trouble tickets and/or a greatest number of the failures; perform a second set of analyses on the first results to produce second results, the second results representing troubleshooting operations for the probable symptoms, the second set of analyses including determining a probability that the links or the devices will fail within a predetermined time after the impact event; and sort, based at least in part on the second set of analyses, the second results.