This section includes the following topics that describe the characteristics of Hyper-V extensible switch ports:
Note NDIS ports and extensible switch ports are different objects. Packets that move through the extensible switch data path are always assigned to the NDIS port number of NDIS_DEFAULT_PORT_NUMBER. However, the packet's source and destination extensible switch port number can be a value of NDIS_SWITCH_DEFAULT_PORT_ID or greater. For more information, see Hyper-V Extensible Switch Data Path.