# System-network-in-bytes-dropped - timeframe

**URL:** <https://discuss.elastic.co/t/system-network-in-bytes-dropped-timeframe/209877>\
**Category:** Beats\
**Tags:** metricbeat\
**Created:** [November 28, 2019, 2:57pm UTC](https://discuss.elastic.co/t/system-network-in-bytes-dropped-timeframe/209877 "2019-11-28T14:57:14Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![kafe](https://avatars.discourse-cdn.com/v4/letter/k/3be4f8/32.png) [@kafe](https://discuss.elastic.co/u/kafe)\
**Post date:** [November 28, 2019, 2:57pm UTC](https://discuss.elastic.co/t/system-network-in-bytes-dropped-timeframe/209877/1 "2019-11-28T14:57:14Z")

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Can you please give me an exact timeframe during which the system-network data was collected in this example? [https://www.elastic.co/guide/en/beats/metricbeat/current/metricbeat-metricset-system-network.html](https://www.elastic.co/guide/en/beats/metricbeat/current/metricbeat-metricset-system-network.html)  
{  
"@timestamp": "2017-10-12T08:05:34.853Z",  
"agent": {  
"hostname": "[host.example.com](http://host.example.com)",  
"name": "[host.example.com](http://host.example.com)"  
},  
"event": {  
"dataset": "system.network",  
"duration": 115000,  
"module": "system"  
},  
"metricset": {  
"name": "network"  
},  
"service": {  
"type": "system"  
},  
"system": {  
"network": {  
"in": {  
"bytes": 37904869172,  
"dropped": 32,  
"errors": 0,  
"packets": 32143403  
},  
"name": "wlp4s0",  
"out": {  
"bytes": 6299331926,  
"dropped": 0,  
"errors": 0,  
"packets": 13362703  
}  
}  
}  
}

We've got the "@timestamp": "2017-10-12T08:05:34.853Z" and the duration defined here - 115000 (nanoseconds?).  
What does the duration exactly mean here please?  
What is the start of the data collection - in other words: we've got number of bytes dropped here - since when? What is the reset to 0 time?

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<div class="post-metadata">

**Author:** ![Kaiyan\_Sheng](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kaiyan_sheng/32/38247_2.png) [@Kaiyan\_Sheng](https://discuss.elastic.co/u/Kaiyan_Sheng)\
**Post date:** [December 2, 2019, 11:05pm UTC](https://discuss.elastic.co/t/system-network-in-bytes-dropped-timeframe/209877/2 "2019-12-02T23:05:29Z")

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`event.duration` here is `Duration of the event in nanoseconds`: [https://www.elastic.co/guide/en/ecs/current/ecs-event.html](https://www.elastic.co/guide/en/ecs/current/ecs-event.html)

The timestamp represents when this event was collected so the data shown here happened at `2017-10-12T08:05:34.853Z`.

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [December 30, 2019, 11:05pm UTC](https://discuss.elastic.co/t/system-network-in-bytes-dropped-timeframe/209877/3 "2019-12-30T23:05:38Z")

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