Provides additional information about the flow
control operational status on this interface.
txDisagree(0) - the transmit pause function on
this interface is disabled due to
disagreement from the far end on
negotiation.
rxDisagree(1) - the receive pause function on
this interface is disabled due to
disagreement from the far end on
negotiation.
txDesired(2) - the transmit pause function on
this interface is desired.
rxDesired(3) - the receive pause function on
this interface is desired.