公开(公告)号：US07907519B2

公开(公告)日：2011-03-15

申请号：US11794337

申请日：2006-01-18

申请人： David J Songhurst ,  Arnaud Jacquet ,  Peter Hovell

发明人： David J Songhurst ,  Arnaud Jacquet ,  Peter Hovell

IPC分类号： G01R31/08

CPC分类号： H04L47/10 ,  H04L47/20 ,  H04L47/2408 ,  H04L47/2441 ,  H04L47/245 ,  H04L47/30 ,  H04L47/31 ,  H04L47/35

摘要： Packet forwarding apparatus has an input for receiving packets; a packet classifier arranged in operation to read a class indication in received packets and in dependence thereon to pass packets to a class-based policer associated with the class indicated; a plurality of class-based policers, each operable to assign a provisional indication to packets of the associated class in response to a measure of the load presented by packets of the class exceeding a predetermined class-based threshold; a multi-class policer operable to receive provisionally-indicated packets processed by the class-based policers, and to assign a congestion indication to packets having the provisional indication in response to congestion arising at the packet forwarding apparatus; and an output for presenting packets processed by the multi-class policer for onward transmission from the apparatus.

摘要翻译： 分组转发装置具有用于接收分组的输入; 操作中的分组分类器，用于读取接收到的分组中的分类指示，并依赖于将分组传递到与所指示的类相关联的基于类的策略器; 多个基于类的策略器，每个可操作以响应于所述类别的分组超过预定的基于类别的阈值所呈现的负载的度量而将临时指示分配给相关联的类的分组; 响应于在所述分组转发装置发生的拥塞，可操作以接收由所述基于类的策略器处理的临时指示分组的多级策略器，以及向具有所述临时指示的分组分配拥塞指示; 以及用于呈现由多类策略器处理的分组的输出，用于从装置向前传输。