关键词: 拥塞控制 多阶段资源感知 网络处理器

Abstract:

Congestion control is an important part of IP QoS. The traditional congestion control algorithms judge the net-work congestion status and make drop decisions mainly according to the congestion information of local buffer resources. This causes the bandwidth-wasting problem when data flow congestion happens. The paper analyzes the problem theoretically and proposes a new congestion control algorithm （CC-AMR） based on the awareness of the congestion status of multistage resources. The CC-AMR has been implemented and tested on a core router which is implemented based on network processors. Results show that this algorithm can enhance the total throughput of the router effectivdy during the period of congestion

Key words: congestion control, awareness of multistage resources, network processor