ECN Explicit Congestion Notification - Computer Definition
The means by which the frame relay network advises devices of network congestion. Forward Explicit Congestion Notification (FECN) is a one-bit field in the LAPF frame used to advise the target (i.e., receiving) frame relay access device (FRAD) that the frame experienced congestion on the network so the FRAD can adjust its expectations. Backward Explicit Congestion Notification (BECN) is a one-bit field used to advise the transmitting FRAD that it is transmitting into a congested network so that the FRAD can reduce its rate of transmission. See also BECN, FECN, FRAD, frame, frame relay, Implicit Congestion Notification, and LAPF.