You can enable TSO support on a virtual machine by using an enhanced vmxnet adapter for that virtual machine.

1

Locate a virtual machine in the vSphere Web Client.

a

To locate a virtual machine, select a datacenter, folder, cluster, resource pool, or host and click the Related Objects tab.

b

Click Virtual Machines and select a virtual machine from the list.

2

Click the Manage tab, and click Settings > VM Hardware.

3

Click Edit.

4

Expand the network adapter section and record the network settings and MAC address for the network adapter.

5

Click Remove to remove the network adapter from the virtual machine.

6

Select Network from the New device drop-down menu and click Add.

7

Use the drop-down menu to select Vmxnet 2 (Enhanced).

8

Set the network setting and MAC address that the old network adapter was using.

9

Click OK.

If the virtual machine is not set to upgrade VMware Tools at each power on, you must upgrade VMware Tools manually.

TSO is enabled on a VMkernel interface. If TSO becomes disabled for a particular VMkernel interface, the only way to enable TSO is to delete that VMkernel interface and recreate it with TSO enabled.