ENI ENA EFA

Question 1

ENI

Answer 1

Elastic Network Interface - essentially a virtual network card in the instance

Question 2

ENA

Answer 2

Enhanced Networking - Uses single root i/o virtualization (SR-IOV) to provide high performance networking capabilities on supported instance types.

Question 3

EFA

Answer 3

A network device that you can attach to your amazon ec2 insatcne to accelerate High Performance Computing (HPC) and machine learning applciations

Question 4

ENI

Answer 4

It allows:

a primary private IPV4 address from the IPV4 address range of your VPC

one or more secondary private IPV4 address from the IPV4 address range of your VPC

one elastic IP address (IPv4) per private IPV4 address

one public IPv4 address

one or more IPv6 addresses

one or more security groups

A MAC address

a source/destination check flag

a description.

Question 5

Scenarios for Network Interface - ENI

Answer 5

Create dual homed instances with workloads/roles on distnct subnets
Create low budget , high availability solution

For basic networking .. where you need a separate management to your production or a sepaarate logging framework an dyou need to do this at low costs..Choose ENI

Question 6

Scenaios for Enhanced Networking

Answer 6

EN is used for higher i/o performance with lower CPU utilization (SR-IoV) when compared to traditional virtual network interfaces.

It has higher bandwidth, higher packet per second performance and consistently lower inter-instance latencies.

There is no additional charge for enhanced networking

Use where you want good network performance.

When you need speeds between 100 Gbps tand 10 Gbps and anywhere you need reliable and high throughtput. using ENA.

Question 7

Enhanced Networking Types

Answer 7

Elastic Network Adapter - supports network speeds up to 100 Gbps for supported insatnce types

Intel 82599 Virtual Function interface up to 10 Gbps for older instances

In any scenario choose ENS over VF

Question 8

Elastic Fabric Adapter

Answer 8

HPC / machine learning

loer and more consistent latency and higher throughput than the TCP transpoty

EFA can use OS-Bypass. OS-bypass enables HPC and maachine learning applications to bypaass the opearting system kernel and to communciate directly with EFA device. it makes it lot faster with low latency.

Not supported with windows only Linux.

Use wher you need HPCC and machine learning or os-bypass.