Enhanced networking results in higher bandwidth, higher packet per second (PPS) performance, lower latency, consistency, scalability and lower jitter

  • EC2 provides enhanced networking capabilities using single root I/O virtualization (SR-IOV) only on supported instance types
    • SR-IVO is a method of device virtualization which provides higher I/O performance and lower CPU utilization
  • Amazon Linux AMIs and Windows Server 2012 R2 AMI already have the module installed with the attributes set and does not require any additional configurations.
  • It can be enabled for other OS distributions by installing the module with the correct attributes configured

Enhanced Networking Key Requirements

  • VPC, as enhanced networking can’t be enabled for instance in EC2-Classic
  • an HVM virtualization type AMI
  • Instance kernel version
    • Linux kernel version of 2.6.32+
    • Windows: Server 2008 R2+
  • Appropriate Virtual Function (VF) driver
    • Linux – should have the ixgbevf module (for best performance version 2.14.2 or higher) installed and that sriovNetSupport attribute set for the instance
    • Windows- Intel 82599 Virtual Function driver
  • supported instance types i.e. C3, C4, D2, I2, M4 and R3

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