| 单词 | FECN (Forward Explicit Congestion Notification) |
| 释义 | FECN (Forward Explicit Congestion Notification) Pronounced feckon. In the frame relay LAPF frame, a 1-bit field available to the network to advise devices in the forward direction, that is, in the direction of the data flow, that the frame has experienced congestion in transit. FECN thereby alerts the receiving frame relay access device (FRAD) that subsequent frames might be delayed in transit or even discarded if the congestion condition worsens. In the event the receiving FRAD detects a frame loss, it recovers by requesting a retransmission. Backward explicit congestion notification (BECN) performs a congestion control function in the reverse direction, that is, in the direction opposite the congested data flow. See also BECN, congestion, ECN, FRAD, frame, frame relay, and LAPF. |
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