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.C3, C4, D2, I2, M4 (excluding
m4.16xlarge), and R3 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 25 Gbps for supported instance types.C5, C5d, F1, G3, H1, I3,
m4.16xlarge, M5, M5d, P2, P3, R4, and X1 instances use the Elastic Network Adapter for enhanced networking.
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