Configure speed and duplex

You can configure the speed and duplex of the ESXi host physical network adapter using vSphere Web Client. Here is how you can do that:

1. Select your ESXi host from the inventory and select Manage > Networking:

manage networking esxi

2. Click the Physical adapters link and select the physical network adapter whose settings you would like to modify. Click on the Edit button above the list of adapters:

edit network adapter

3. Select the new speed and duplex values:

edit network adapter speed duplex

 

If you are using a Gigabit Ethernet adapter, leave the default value of Auto negotiate, because it is a part of the Gigabit standard.
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