Method and system for reducing false alarms in network fault management systems
US6966015B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2001 |
| Grant date | Nov 15, 2005 |
| Priority date | — |
| Expiry date | Nov 20, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L41/064
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and systems are described for reducing the number of false alarms in fault correlation software used to detect and diagnose faults in computer networks and similar systems. The fault correlation software includes rules that monitor a number of indicators that, if occurring together over a window of time, are known to cause or reflect the occurrence of a fault. The method involves monitoring the transition of these indicators from one state to another over the time window and determining the extent of the correlation of the transitions of the indicators. The determination that indicators monitored by a rule do not correlate closely in their transitions is used to reduce the likelihood of the rule finding correlation of the indicators as a whole. This in turn reduces the number of false alarms which the rule-based system might otherwise have transmitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.