What Is the Relationship Between a VPC, Public NAT Gateway, EIP Bandwidth, and ECS?

A VPC is a secure, isolated, logical network.
A public NAT gateway enables ECSs in a VPC to access the Internet.
EIP is a service that provides valid static IP addresses on the Internet. The throughput of a VPC is determined by the EIP bandwidth.
An ECS is an instance running in a VPC and uses a public NAT gateway to access the Internet.

Parent topic: Public NAT Gateways