Patent ID: 8462623

Claim:
A bandwidth control method for controlling dynamically a bandwidth control setup, the method comprising: presetting in transmission equipment, a table indicating a correspondence relationship among a plurality of maximum bandwidths of user traffic of a plurality of users using a Link Aggregation to integrate a plurality of physical links and the number of normal physical links which are integrated as the Link Aggregation, as bandwidth control information of each user for the number of normal physical links, a total of the plurality of maximum bandwidths representing a maximum bandwidth of the Link Aggregation based on a bandwidth of a physical link multiplied by the number of normal physical links, one of the normal physical links transmitting a sum of a plurality of parts of the user traffic respectively corresponding to the plurality of users; recognizing, by the transmission equipment, the number of currently normal physical links if a failure, or a recovery therefrom, of physical links which are integrated as the Link Aggregation is detected; carrying out a bandwidth control, by the transmission equipment for each user traffic in response to the number of the recognized normal physical links by referring to the preset table; and controlling, by the transmission equipment, the maximum bandwidths of user traffic dynamically in accordance with a variation of a maximum bandwidth of the Link Aggregation, wherein the controlling the maximum bandwidths of user traffic decreases the maximum bandwidths of user traffic to smaller maximum bandwidths corresponding to the number of the recognized normal physical links when the failure of the physical links is detected, and increases the maximum bandwidths of user traffic to greater maximum bandwidths corresponding to the number of the recognized normal physical links when the recovery of the physical links from the failure is detected.