Patent ID: 7843913
Filing Date: 2010-11-30
Classification: H04L

Abstract:
1. A method of operating a scheduler of a crossbar switch, wherein said scheduler comprises a tree structure comprising an input stage with a plurality of entry modules and at least one decider stage, wherein each decider stage comprises at least one decider module, wherein one or more modules are connected to a decider module of a subsequent decider stage, wherein a packet reference is forwarded from said input stage or a decider stage to a subsequent decider stage depending on a forwarding decision that is made in a decider module, comprising the following steps: providing each packet reference with attributes comprising a packet weight and packet size, storing accounting information for each of said modules; wherein said accounting information depends on at least one of the packet references and said accounting information is dependent on the packet weight and packet size provided with the packet references which are processed by the respective module; and making the forwarding decision depending on said accounting information.