Apparatus and method for controlling traffic congestion using queue

Abstract

The present invention discloses an apparatus and method for controlling traffic congestion using a queue which can detect an abnormal traffic flow by using the queue, and branch and merge traffic classes according to the traffic congestion. In the abnormal traffic flow, the apparatus for controlling traffic congestion using the queue performs branch control in a congestion state and merge control in a non-congestion state by using a branch counter for accumulating a traffic which is not stored but discarded, and a merge counter for recording a difference between a transmission capacity allocated to the corresponding traffic flow and a volume of the actually-transmitted traffic, thereby improving quality of service.

Dependencies are inferred from the claim text.