# Aggregation of incoming events on common fields for SIEM usecase

**URL:** <https://discuss.elastic.co/t/aggregation-of-incoming-events-on-common-fields-for-siem-usecase/229206>\
**Category:** SIEM\
**Created:** [April 22, 2020, 8:26am UTC](https://discuss.elastic.co/t/aggregation-of-incoming-events-on-common-fields-for-siem-usecase/229206 "2020-04-22T08:26:36Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ParashB](https://avatars.discourse-cdn.com/v4/letter/p/b2d939/32.png) [@ParashB](https://discuss.elastic.co/u/ParashB)\
**Post date:** [April 22, 2020, 8:26am UTC](https://discuss.elastic.co/t/aggregation-of-incoming-events-on-common-fields-for-siem-usecase/229206/1 "2020-04-22T08:26:36Z")

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How can I do aggregation of incoming events on common fields to reduce the incoming EPS? Refer the AGGREGATION OF EVENTS section in "[https://socprime.com/en/blog/arcsight-optimizing-eps-aggregation-and-filtration/](https://socprime.com/en/blog/arcsight-optimizing-eps-aggregation-and-filtration/)" for more detail.

I think it could be done at logstash but can't find relevant documentation so it would be helpful if someone could point me in the right direction.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [May 20, 2020, 8:26am UTC](https://discuss.elastic.co/t/aggregation-of-incoming-events-on-common-fields-for-siem-usecase/229206/2 "2020-05-20T08:26:45Z")

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