Identifying the different components of your networking architecture is critical and helps ensure that no errors are introduced as your network grows.
Follow these best practices:
Ensure that port groups are configured with a clear network label. These labels serve as a functional descriptor for the port group and help you identify each port group's function as the network becomes more complex.
Ensure that each vSphere Distributed Switch has a clear network label that indicates the function or IP subnet of the switch. This label serves as a functional descriptor for the switch, just as physical switches require a host name. For example, you can label the switch as internal to show that it is for internal networking. You cannot change the label for a standard virtual switch.