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.

1

Browse to a host in the vSphere Web Client navigator.

2

Click the Manage tab, and select Networking > Virtual Switches.

3

Select a standard switch from the virtual switches table.

A diagram of the standard switch infrastructure appears.

4

Click the name of the VMkernel network adapter.

5

Click Edit.

6

Click NIC settings and set the MTU to 9000.

7

Click OK.