Flow logging for network analytics and visibility platforms from Google Cloud. There are many products that use flow records for deeper visibility and monitoring.
It strikes me that this is a public cloud moving to match private cloud features rather then invent a bright, mythical, shiny future.
If you’re familiar with network operations, think of VPC Flow Logs like NetFlow, but with additional features. VPC Flow Logs provides responsive flow-level network telemetry for GCP environments, creating logs in five-second intervals. It also allows you to collect network telemetry at various levels. You can choose to collect telemetry for a particular VPC network or subnet or drill down further to monitor a specific VM Instance or virtual interface.
Google Cloud Platform Blog: Introducing VPC Flow Logs—network transparency in near real-time : https://cloudplatform.googleblog.com/2018/04/introducing-VPC-Flow-Logs-network-transparency-in-near-real-time.html?utm_campaign=ARCHITECHT&utm_medium=email&utm_source=ARCHITECHT_16