# Elastic Network Interface (ENI)
#aws #cloud #compute #networking
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
