The Flow Control parameter allows the user to enable or disable the receipt or transmission of PAUSE frames. PAUSE frames enable the adapter and the switch to control the transmit rate. The side that is receiving the PAUSE frame will momentarily stop transmitting. The recommended selection is Auto, which will optimize PAUSE frame receipt and transmission. Set to Auto by default, to disable Flow Control to receive, transmit, or receive and transmit PAUSE frames, select the appropriate parameter from the Advanced tab Value drop-down menu described and shown below.
What is the NIC Flow Control set to?