Enabling jumbo frame on Hyper-V 2012 R2 Core NIC using powershell

Enabling jumbo frame on a NIC using powershell is shown below :

Enabling jumbo frames using powershell

To list advanced properties of NIC3 : Get-NetAdapterAdvancedProperty -Name "NIC3"

To change jumbo mtu to 9000 : Get-NetAdapterAdvancedProperty -Name "NIC3" -RegistryKeyword "*jumbopacket" | Set-NetAdapterAdvancedProperty -RegistryValue 9000

Jumbo frames

Jumbo frames are Ethernet frames with more than 1500 bytes of payload. Generally, jumbo frames can carry up to 9000 bytes, but variations do exist. Enabling jumbo frames in specific cases (say, in your Storage Area Network) can improve performance and network throughput. But, if you are enabling it, all devices connecting it including the source, destination and other devices in between like switches etc must support jumbo frames and should be enabled.

Enabling jumbo frames on a VMware virtual network adapter (vmxnet3) is shown below :

Jumbo Packet on vmxnet3 adapter

Steps to enable jumbo frames on a VMware vSphere 4.1 vSwitch is shown below :

List vSwitch

 By default it is 1500 MTU. Say, you want to change vSwitch1 to 9000 MTU. It can be done as follows :

Enabling jumbo frame with MTU 9000 on vSwitch1

You can verify connectivity after enabling jumbo frames by specifying packet size using ping command as given below :

Verifying jumbo frames