A vSphere Standard Switch (vSwitch) operates at the VMkernel layer. By default, a vSwitch—vSwitch0—is created during ESXi installation. In this section, we will learn how to create a new vSwitch using the vSphere Web Client and also the ESXi command-line interface.
To manually create a new vSwitch, you can use the vSphere Web Client GUI, the vSphere Windows Client GUI, or the esxcli command on an ESXi server.
There is one fundamental difference in the process of creating a vSwitch using the esxcfg-vswitch command. Unlike the Add Networking wizard, which requires you to create a port group to proceed with the creation of the vSwitch, the esxcli command lets you create a vSwitch with no port groups and with no uplinks.
