Amazon VPC Flow Logs introduces additional metadata

Amazon VPC Flow Logs now supports EC2 resource tags and next-hop interface metadata. With EC2 resource tag support, you can embed tag values from your network interfaces, EC2 instances, and auto scaling groups. This eliminates the need to join flow log data with separate tag metadata to correlate records with specific workloads. With next-hop metadata support, you can capture details about the next-hop network interface for each flow, including its interface ID, subnet, Availability Zone, VPC, and interface type. These fields help you understand how traffic traverses through network resources such as NAT Gateways, Network Load Balancers, and Transit Gateways without requiring manual correlation of multiple data sources.