System and method for alarm correlation and root cause determination
US10862738B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2017 |
| Grant date | Dec 8, 2020 |
| Priority date | — |
| Expiry date | Dec 13, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L41/065
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A Fault Management (FaM) system monitoring a telecommunication network is able to determine a root cause of a malfunction within the network. The root cause determination is accomplished by receiving alarms from network elements, which may be physical devices, logical interfaces, or a combination thereof. An alarm typically includes a managed object, an alarm name, object type, timestamp, and the like. FaM systems may receive thousands of alarms, where a root cause alarm indicates a malfunction which triggered other alarms to be reported. Alarms are correlated by the FaM system, and a probability is determined for each correlated alarm to be the root cause. The system may have a learning mode, in which it correlates alarms, and an online mode, in which it receives alarms and determines that the alarms are correlated based on data from the learning mode. In some embodiments, both modes may be executed in parallel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.