Change the Size of the MTU on a vSphere Standard Switch

Change the size of the maximum transmission unit (MTU) on a vSphere Standard Switch to improve the networking efficiency by increasing the amount of payload data transmitted with a single packet, that is, enabling jumbo frames.

Procedure

1. In the vSphere Client, navigate to the host.
2. On the Configure tab, expand Networking and select Virtual Switches.
3. Select a standard switch from the table and click Edit settings.
4. Change the MTU (Bytes) value for the standard switch.
   You can enable jumbo frames by setting an MTU value greater than 1500. You cannot set an MTU size greater than 9000 bytes.
5. Click OK.