<Dd> Throughput = Efficiency × Net bit rate (\ displaystyle (\ text (Throughput)) = (\ text (Efficiency)) \ times (\ text (Net bit rate)) \, \!), </Dd> <P> where the physical layer net bit rate (the wire bit rate) depends on the Ethernet physical layer standard, and may be 10 Mbit / s, 100 Mbit / s, 1 Gbit / s or 10 Gbit / s . Maximum throughput for 100BASE - TX Ethernet is consequently 97.53 Mbit / s without 802.1 Q, and 97.28 Mbit / s with 802.1 Q . </P> <P> Channel utilization is a concept often confused with protocol efficiency . It considers only the use of the channel disregarding the nature of the data transmitted--either payload or overhead . At the physical layer, the link channel and equipment do not know the difference between data and control frames . We may calculate the channel utilization: </P> <Dl> <Dd> Channel utilization = Time spent transmitting data Total time (\ displaystyle (\ text (Channel utilization)) = (\ frac (\ text (Time spent transmitting data)) (\ text (Total time)))) </Dd> </Dl>

1 frame is equal to how many bytes