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Managed NAT Gateway

Managed NAT Gateways in Amazon Web Services can become a significant source of waste, particularly when they are underutilized or have minimal traffic flow.

We identify this waste through a detection algorithm that relies on specific CloudWatch metrics, primarily focusing on network traffic patterns.

These metrics include:

  • Low NetworkOutBytes and NetworkInBytes indicating minimal data transfer
  • Consistent periods of zero or near-zero traffic
  • Unused NAT Gateway capacity

By regularly monitoring and evaluating NAT Gateways against these metrics, you can identify and remove gateways that are not effectively serving your network requirements.

This proactive approach not only optimizes resource allocation but also leads to more cost-effective management of your AWS environment, as NAT Gateways are charged on an hourly basis regardless of usage.