A basic network interface functionality provided by AWS to be attached to EC2.
- Additional ENIs can be attached from subnets within the same AZ
- The primary network interface has a private IP and optionally a public IP
- You cannot attach ENIs from subnets in different AZs
- We can attach many ENIs to a singe instances.
- We can transferr the ENI from one instance to another in the same availability zone.
Other Network interfaces
Elastic Network Adapter (ENA)
High networking performance used for higher bandwidth.
Elastic Fabric Adapter (EFA)
For high performance Computing (HPC) instances with tightly coupled application/instances.
Their Differences
Types of IPs
