With Fusion Pro, you can enable jumbo frames for built-in networks.

Jumbo frames let you send larger frames out onto the physical network. For built-in networks, jumbo frames can be configured in the Share with my Mac and Private to my Mac tabs.

Prerequisites

  • Verify that you know the administrator password.
  • If you use Fusion 12.1.2 or earlier on MacOS Big Sur hosts, the jumbo frame feature is not available for built-in NAT and private networks. Only bridged networking is supported when jumbo frame is enabled on the host.

Procedure

  1. Select VMware Fusion > Preferences and click Network.
  2. Click the lock icon, enter the administrator password, and click OK.
  3. Select Share with my Mac.
  4. Select Custom from the MTU drop-down menu and enter a value between 72 and 9194 bytes in the text box and Click Apply.
  5. Select Private to my Mac.
  6. Select Custom from the MTU drop-down menu and enter a value between 72 bytes and 9194 bytes in the text box and Click Apply.

Results

Jumbo frame is enabled for built-in networks.

What to do next

Note: To enable jumbo frames on Mac OS Big Sur host, the network adapter must support jumbo frames. To enable this feature perform the following steps:
  1. Navigate to System Preferences > Network > Advanced > Hardware.
  2. Change Configure to Manually and choose Jumbo (9000) in the MTU drop-down.