分级统筹分配令牌参数的流量整形算法

Traffic shaping algorithm with holistic and hierarchical token parameters allocation

在区分服务网络中,流量整形是提供QoS保证的一项重要的技术,通常用于规整用户系统向网络提交的数据流。提出了一个新的流量整形架构———分级统筹令牌参数分配(HHTPA)整形器,在边缘路由器上通过分级整形、统筹实时更新令牌桶参数,动态分配剩余带宽,达到对用户数据进行流量整形和提高带宽利用率的目的,使得为高优先级服务预留但未使用的带宽也可被低优先级的服务使用。

Traffic shaping is an important technique to guarantee QoS in a network that provides Differentiated Services. It is commonly used to regulate the traffic which is sent to the network from users. We proposed a new architecture of traffic shaper named HHTPA（Holistic and Hierarchical Token Parameters Allocation）. It works in edge router to dynamically allocate the unused bandwidth through hierarchical shaping and allocating the token parameter as a whole. It improves the utilization rate of bandwidth. In this architecture, lower QoS classes can utilize the extra bandwidth previously saved for higher QoS traffic classes.