Each station has dedicated use of one channel to transmit and another to receive. There is no need to share the medium and therefore arbitration is unnecessary. The discarding of such a frame by a MAC is not reported as an error. Since collisions do not occur in full duplex there is no need for the MAC to defer to any traffic on its receive channel. There is also no frame bursting in full duplex since a MAC has full access to the transmit channel and frame transmission is always permitted after the MAC has observed the minimum interframe delay.
Burst mode is only applicable to half-duplex mode of operation.
Once a frame has been successfully transmitted, the station can begin transmission of another frame without contending for the medium because the station only needs to defer to its own transmission to enforce minimum interframe gap. The testing station is instructed to transmit five 1518 byte request frames. It should not receive extension in the IPG, which would indicate that the DUT had transmitted in burst mode. This could be due to timing issues which were not conducive to burst mode.