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随着信息技术的迅猛发展，网络应用大量增加，使得原有的庞大数据流量成倍地增长。然而网络资源总是有限的，当网上的数据流量超过了网络的最大传输能力时，阻塞就发生了。解决阻塞问题的方法大致分为两类，即阻塞控制机制和阻塞避免机制。阻塞控制机制是通过在发生阻塞的节点
With the rapid development of information technology, a large number of network applications increase, making the original huge data traffic doubled. However, network resources are always limited, and when the data traffic on the Internet exceeds the maximum transmission capacity of the network, congestion occurs. There are two types of methods to solve the congestion problem: blocking control mechanism and blocking avoidance mechanism. Blocking control mechanism through the node in the block