Alarm filtering, in the context of IT

network management Network management is the process of administering and managing computer networks. Services provided by this discipline include fault analysis, performance management, provisioning of networks and maintaining quality of service. Network managem ...

, is the method by which an

alarm system ALARM (Air Launched Anti-Radiation Missile) is a British anti-radiation missile designed primarily to destroy enemy radars for the purpose of Suppression of Enemy Air Defenses (SEAD). It was used by the RAF and is still used by the Royal Sau ...

reports the origin of a system failure, rather than a list of systems failed.

Example

Depending on the way a network is set up, the failure of one device (be it

software Software consists of computer programs that instruct the Execution (computing), execution of a computer. Software also includes design documents and specifications. The history of software is closely tied to the development of digital comput ...

or hardware) may cause a device dependent on that first device to fail. In this situation, a non-filtering alarm system will report both the original failure and the failure of the dependent device. With alarm filtering, the alarm system is able to report the original failure with more priority than the subsequent failure, allowing a technician or repairman to concentrate on the cause of the issue, rather than wasting time trying to repair the wrong device.

References

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