iSCSI storage - enable JUMBO frames for ESXi 4
You must create the vSwitch and change the MTU to 9000. For this example, vSwitch7 will be the name you would replace with your own: esxcfg-vswitch -a vSwitch7 Then, set the MTU of the vSwitch: esxcfg-vswitch -m 9000 vSwitch7 esxcfg-vswitch -l - will list all the vSwitches on actual ESXi. It should look something like this: Switch Name Num Ports Used Ports Configured Ports MTU Uplinks vSwitch7 64 1 64 9000 iSCSI access is controlled by a VMkernel interface and assigned to a port group on the vSwitch. So create the portgroup: esxcfg-vswitch -A vSwitch7 Then create the VMkernel interface: esxcfg-vmknic -a -i -n -m 9000 If you named the port group "iSCSI_storage", for example, and your IP is 192.168.0.1/24, the command would be like this: esxcfg-vmknic -a -i 192.168.0.1 -n 255.255.255.0 -m 9000 iSCSI_storage The last step is to add a physical NIC to the vSwitch. This can be done