Feedback-Based Scheduling for Load-Balanced Crosspoint Buffered Crossbar Switches

With the rapid development of the computer and Internet, users need high-bandwidth and high-stable network environment. Routing and switching, as an important network device, supporting high-quality services. It's always been a focus of researchers. In view of the combined input Crosspoint existing queue (CICQ) controlled by flow control delay, and the pure cross-point buffer (CQ) has the problem of “insufficient throughput performance in unbalanced traffic mode”. There was an algorithm proposes a load-balanced cross-buffer scheduling algorithm, which can improve the performance of throughput, quantity and delay. But the load balanced cell has the problem of out-sequence of the cells in the data stream of the same output port. This paper proposes a feedback-based load-balanced cross-buffer scheduling algorithm to ensure throughput and delay performance. Through feedback scheduling, the problem of out-sequence is well solved.