Intel® Ethernet 700/800 Series

Windows Performance Tuning Guide

ID Date Version Classification
784543 02/06/2024 1.1 Public
Document Table of Contents

​Jumbo Frames

When the expected traffic environment consists of large blocks of data being transferred, it might be beneficial to enable the Jumbo Frames feature. Jumbo Frames support is enabled by changing the Maximum Transmission Unit (MTU) to a value larger than the default value of 1500. This allows the device to transfer data in larger packets within the network environment. This setting might improve throughput and reduce CPU utilization for large I/O workloads. However, it might impact small packet or latency-sensitive workloads.

Jumbo Packets should only be enabled if ALL devices across the network support them and are configured to use the same frame size.

To manage Jumbo Frames:

  1. ​List the current value: Get-NetAdapterAdvancedProperty -Name <Adapter Name> -DisplayName "Jumbo Packet"
  2. ​Enable Jumbo Frames: Set-NetAdapterAdvancedProperty -Name <Adapter Name> -DisplayName "Jumbo Packet" -DisplayValue 9014
  3. ​Restore Default Frame Size: Set-NetAdapterAdvancedProperty -Name <Adapter Name> -DisplayName "Jumbo Packet" -DisplayValue 1514
Note:​End-to-end hardware must support Jumbo Frames; otherwise, packets are dropped. See Intel® Ethernet Adapters and Devices User Guide, Section 4.12, "Jumbo Frames" for restrictions.