Patent ID: 8040908

Claim:
A frame transmission method, comprising: transmitting, by a primary queuing unit, at least one frame to a normal destination; in response to a transmission and retransmission of the at least one frame failing, classifying the normal destination as a suspect destination; assigning, in the control unit, the at least one frame transmission that failed to transmit during the transmission and the retransmission to a retransmission queuing unit; transmitting, at the primary queuing unit, a plurality of subsequent frames to a normal destination; and continuously transmitting, at the retransmission queuing unit, the at least one frame to the suspect destination until the at least one frame is successfully received at the suspect destination or until a predetermined amount of transmission attempts expires, wherein the subsequent frame is subsequent in transmission priority to the at least one frame, the retransmission queuing unit and the primary queuing unit alternate transmission attempts during the same transmission period, and the at least one frame is discarded from the retransmission queuing unit when the frame fails to transmit to the suspect destination after a predetermined number of cycles.