ECS for observability

Hi,

I have custom infrastructure metrics logs and wanted to display in inventory section in metrics tab.

I have referred the below link for ecs mapping:
https://www.elastic.co/guide/en/infrastructure/guide/7.4/infrastructure-metrics.html

Created custom template from metricbeat template.

I am able to get metrics in visulisations as well

Problem is I am not able to get Network section
image
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I have data present in the field as well.

Please help in understanding what changes need to be done.

Regards,
Bryce Fernandes.