If you are using an ESX host, you must use the command-line interface to create a VMkernel network interface that is enabled with Jumbo Frames.


Log in directly to the console of the ESX host.


Run the following commands to create a VMkernel connection with Jumbo Frame support.

esxcfg-vswitch -a <virtual switch>

esxcfg-vswitch -m <MTU> <virtual switch>

esxcfg-vswitch -A <port group name> <virtual switch>

esxcfg-vswitch -L <pnic> <virtual switch>

esxcfg-vmknic -a -I <ip address> -n <netmask> -m <MTU> <port group name>


Run the esxcfg-vmknic -l command to display a list of VMkernel interfaces and check that the configuration of the Jumbo Frame-enabled interface is correct.


Check that the VMkernel interface is connected to a vSwitch with Jumbo Frames enabled.


Configure all physical switches and any physical or virtual machines to which this VMkernel interface connects to support Jumbo Frames.