The weight parameter defines the weight within the above-CIR level given to a child queue or scheduler. When several children share the same level on a parent scheduler, the ratio of bandwidth give to an individual child is dependent on the ratio of the weights of the active children. A child is considered active when a portion of the offered load is above the CIR value (also bounded by the child’s maximum bandwidth defined by the child’s rate parameter). The portion of bandwidth given to each child is based on the child’s weight compared to the sum of the weights of all active children at that level. A weight of zero forces the child to receive bandwidth only after all other children at that level have received their above-CIR bandwidth. When several children share a weight of zero, all are treated equally.