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首先介绍了队列调度算法在流量控制中的关键地位,然后讨论了现有队列调度算法,如基于优先级的调度算法、轮询调度算法与公平队列调度算法,最后提出了一种新的队列规程,该队列规程融合了优先级调度算法与DRR调度算法。在网络正常情况下,不同业务流公平地共享网络带宽,在网络出现拥塞的情况下,高优先级业务流能够抢占带宽,保证其较低的丢包率,并能够实现两种调度算法的快速切换。
At first, the key position of queue scheduling algorithm in traffic control is introduced. Then the existing queue scheduling algorithms, such as priority-based scheduling algorithm, round robin scheduling algorithm and fair queue scheduling algorithm, are discussed. Finally, a new queue discipline This queuing discipline incorporates a priority scheduling algorithm and a DRR scheduling algorithm. Under normal network conditions, different service flows share the network bandwidth in a fair manner. In the case of network congestion, high-priority service flows can preempt the bandwidth, guarantee a lower packet loss rate, and achieve fast scheduling of the two scheduling algorithms Switch.