In an embodiment, frames are received in an arrival order. Each of the frames has a target client and a sequence number that represents a relative position of the frame in the arrival order. A transmission order is determined based on bit reversals of the sequence numbers. Then frames are then sent to the respective target client in the transmission order. A frame is sent to the target client from its slot during a respective time period that is associated with the slot. If the slot is empty, no data is sent during the respective time period. In this way, the transmission of frames is spread over the available time.