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.


  1. In the vSphere Web Client, navigate to the host.
  2. On the Manage tab, click 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 MTU (bytes) to a number greater than 1500. You cannot set an MTU size greater than 9000 bytes.
  5. Click OK.