Jumbo frames reduce the CPU load caused by transferring data. Enable jumbo frames on a VMkernel network interface by changing the maximum transmission units (MTU) of the VMkernel interface.


Launch the vSphere Client and log in to a vCenter Server system.


  1. Log in to the vSphere Client and select a host in the inventory pane.
  2. On the host Configuration tab, click Networking.
  3. Click Properties for the vSphere standard switch associated with the VMkernel to modify.
  4. On the Ports tab, select the VMkernel interface and click Edit.
  5. Set the MTU to 9000, and click OK.