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针对越来越多网络应用不采用端到端拥塞控制机制而导致非公平占用网络带宽问题，介绍了在路由器内部实现基于连接调度的增强拥塞控制方法．路由器使用公平排队调度算法代替传统的先来先服务调度算法，可隔离和保护基于漏桶控制的网络连接．但采用传输控制协议（ＴＣＰ）连接对数据包丢失敏感，路由器使用公平排队调度算法还需要结合相应的缓冲管理方法，才能保证ＴＣＰ连接获取公平的吞吐量．讨论了基于连接的最长排队数据包丢弃的缓冲管理方法．模拟结果表明，公平排队调度算法结合所提出的缓冲管理方法比随机提前检测缓冲管理方法更好地改进了拥塞控制性能
In view of the problem that more and more network applications do not adopt the end-to-end congestion control mechanism and cause unfair occupation of network bandwidth, an enhanced congestion control method based on connection scheduling in routers is introduced. Routers use fair queuing scheduling algorithms instead of traditional first-come, first-serve scheduling algorithms to isolate and protect network connections based on leaky bucket controls. However, Transmission Control Protocol (TCP) connections are sensitive to packet loss. Routers using a fair queuing algorithm also need to combine the appropriate buffer management methods to ensure fair throughput for TCP connections. Discusses the connection-based longest queued packets dropped buffer management method. The simulation results show that the fair queuing scheduling algorithm combined with the proposed buffer management method improves the congestion control performance better than the random early detection buffer management method