How to change the Payload from default size 1500 to 9000 on a vSwitch

esxcfg-vswitch –m 9000 vSwitch3

Then run esxcfg-vswitch –l (Lowercase L)  to see the vswitch properties
or
esxcfg-nics –l (Lowercase L)  to see the NIC properties

To test use the command vmkping

vmkping –s 9000 “ipddress”