摘要： 针对ABR业务流在传输过程中存在随机延时导致网络节点不能得到平稳控制的问题，提出一种网络源端和节点端同时参与控制的双端协同拥塞控制策略。OPNET网络仿真环境下的试验结果表明，该控制策略能够有效地克服随机延时对信息传输的影响，实现节点队列长度的有效平稳控制，降低节点端信元的丢弃概率，改善网络服务质量和传输效率。

关键词: 随机延时, 双端协同, 拥塞控制

Abstract: Due to random delay during ABR traffic transmitting, network node can not be controlled steadily. A double-end cooperative congestion control strategy is proposed and analyzed. Simulation that runs on the OPNET software shows that, the strategy works well in terms of stability of the network node queue length, reduces the cells drop probability of the network node, and improves QoS of network and transmission efficiency.

Key words: random delay, double-end cooperative, congestion control

中图分类号: 

• TP393.07