A physical adapter can become a bottleneck for network traffic if the adapter speed does not match application requirements. You can change the connection speed and duplex of a physical adapter to transfer data in compliance with the traffic rate.
If the physical adapter supports SR-IOV, you can enable it and configure the number of virtual functions to use for virtual machine networking.
- In the vSphere Client, navigate to a host.
- On the Configure tab, expand Networking and select Physical adapters.
The physical network adapters of the host appear in a table that contains details for each physical network adapter.
- Select the physical network adapter from the list and click the Edit adapter settings icon.
- Select speed and duplex mode of the physical network adapter from the drop-down menu.
- Click OK.