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Amazon Elastic Compute Cloud
User Guide for Linux Instances

Enhanced Networking on Linux

Enhanced networking uses single root I/O virtualization (SR-IOV) to provide high-performance networking capabilities on supported instance types. SR-IOV is a method of device virtualization that provides higher I/O performance and lower CPU utilization when compared to traditional virtualized network interfaces. Enhanced networking provides higher bandwidth, higher packet per second (PPS) performance, and consistently lower inter-instance latencies. There is no additional charge for using enhanced networking.

Enhanced Networking Types

Depending on your instance type, enhanced networking can be enabled using one of the following mechanisms:

Intel 82599 Virtual Function (VF) interface

The Intel 82599 Virtual Function interface supports network speeds of up to 10 Gbps for supported instance types. For more information, see the Instance Type Matrix.

C3, C4, R3, I2, M4 and D2 instances use the Intel 82599 VF interface for enhanced networking.

Elastic Network Adapter (ENA)

The Elastic Network Adapter (ENA) supports network speeds of up to 20 Gbps.

X1 instances use the Elastic Network Adapter for enhanced networking.

Enabling Enhanced Networking on Your Instance

If your instance type supports the Intel 82599 VF interface for enhanced networking, follow the procedures in Enabling Enhanced Networking with the Intel 82599 VF Interface on Linux Instances in a VPC.

If your instance type supports the Elastic Network Adapter for enhanced networking, follow the procedures in Enabling Enhanced Networking with the Elastic Network Adapter (ENA) on Linux Instances in a VPC.