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Devo internal mechanisms Triggered alert discarding → Apart from explicit anti-flooding policies, Devo possesses an intrinsic anti-flooding system that offers an additional layer of protection against alert flooding. Alerts will be discarded after receiving 100 in every five-minute period. This system is always active but becomes especially useful when no anti-flooding policy is selected because setting one will create a more restrictive environment that will make it impossible to reach the conditions to activate this system. Alert definition deactivation → Devo also has an internal mechanism called AlertRateChecker, which shields you from extreme cases of alert flooding. It deactivates alert definitions upon exceeding a TREND of 100 given TREND or SPIKE. Even though they can be configured, the default TREND is 100 alerts per minute several times in every five-minute period, or a SPIKE of 5000 and the default SPIKE is 5000 alerts in a single minute. |
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