Enabling jumbo frames in VMware ESX 4
First, you must create the vSwitch and change the MTU to 9000. For this example, vSwitch9 will be the name you would replace with your own. esxcfg-vswitch -a vSwitch9 Then, set the MTU of the vSwitch. esxcfg-vswitch -m 9000 vSwitch9 esxcfg-vswitch -l will list all the vSwitches so you can confirm your changes and settings. …