Abstract:

For the issue of bandwidth fair distribution on differentiated services, designs a new algorithm of threecolor marker based on the mobile threshold, the threshold of the threecolor marker algorithm automatically is adjusted according to the occupied bandwidth proportion of flow, thereby ensures the fairness of the network bandwidth distribution. The experiments show that fairness of the new threecolor marker algorithm have been quite enhanced comparing with the threecolor marker algorithm based on the time sliding window, it has some practice value to enhance the fairness of the bandwidth distribution.

Key words: differentiated services, bandwidth fair, congestion control, quality of services