A bi-direction adjustable token bucket mechanism for multi-class bandwidth guarantee and sharing

In enterprises and residential networks, there are always multiple classes of traffic sharing the limited access bandwidth, and multiple token buckets are used to guarantee the usage of every class. At the same time, network managers hope to utilize the idle resource, in case of the bandwidth for some classes is redundant, for higher classes, as well as lower classes. A bi-direction adjustable multi-class token bucket mechanism is presented to achieve this goal. Furthermore, experiments and tests have proved that this solution is effective.