Associate a distributed port with a network resource pool to give you greater control over the bandwidth given to the port.
Enable Network I/O Control on the host and create one or more user-defined network resource pools.
1. Log in to the vSphere Client and select the Networking inventory view.
2. Select the vSphere distributed switch in the inventory pane.
3. On the Ports tab, right-click the port to modify and select Edit Settings.
4. Select Policies.
5. In the Resource Allocation group, select the Network Resource Pool to associate the port with from the drop-down menu.
6. Click OK.