The Forwarding Rate (FR) is the forwarding rate. It is a criterion for characterizing the throughput of bridges and switches. It is the number of data packets per unit time that a bridge or switch can successfully forward to the correct destination interface: Packets per Second (pps). Higher forwarding rates are specified in Mpps ( Mega) and Gpps ( Giga
). When LAN segments are connected
, the forwarding rate corresponds to the maximum number of data packets that they can transmit between two network segments. The value is assumed to be the optimal packet length for the bridge or switch. Theforwarding rate refers to the number of data packets that can be transmitted in both directions simultaneously.
Determining the forwarding rate is somewhat problematic because the size of the data packets must be considered in the calculation. Since data packets can range in size from 64 bytes
to 1,500 bytes, there remains a relative uncertainty in the evaluation. The highest forwarding rate is the maximum forwarding rate (MFR). This repetitive data rate is used in Device under Test (DUT) for the FR measurement.