A. Receive port： Enabled， Transmit port： Enabled
B. Receive port： Enabled， Transmit port： Desired
C. Receive port： Enabled， Transmit port： Disabled
D. Receive port： Disabled， Transmit port： Desired
E. Receive port： Desired， Transmit port： Desired

A. NX-OS uses a random MAC address from the IEEE OUI block that is assigned to Cisco.
B. The VDC system MAC is pulled from the active supervisor and concatenated through a hash to ensure uniqueness.
C. NX-OS uses a value that is based on a range that is assigned to the SPROM of the system backplane.
D. The VDC system MAC is based on a range that is allocated to the first line card that is installed in the switch.