Physical network names
With physical network names, you can assign a string to parts of your network that are physically isolated. Assigning such strings segments your network into distinct parts, such as a production and a development segment. When a virtual machine is associated with one network segment, PowerVC ensures that is never moved, through DRO, for example, to a different network. Thus, the virtual machine routes only network traffic through the appropriate network segment. In PowerVC, the way that the physical network name is set depends on the type of network you are using.
Shared Ethernet Adapter (SEA)
SEA networks in PowerVC do not use physical network names. They use host-network-mapping, which is a different way of telling PowerVC which physical Ethernet ports to use for which virtual networks.