Method, first, by the network packet scheduler, from each of the other network packet scheduler of the plurality of network packet scheduler, receives a virtual packets for each traffic class of a plurality of traffic classes that defines the relative transmission priority of the network packet the method comprising; Phase, by the first network packet scheduler, receives a network packet of the first traffic class of said plurality of traffic classes; Wherein the first transmission for each virtual packet, by the network packet scheduler of any of the virtual connection of the plurality of virtual connections have been generated for each traffic class; The step of scheduling, data packet or a virtual packet by the first network packet scheduler in the next packet in the buffer for transmission; Phase, by the first network packet scheduler, is the next packet in the buffer is determined that the virtual packets; And in response to the first network by the packet scheduler, determining that the packet is the next packet in the virtual buffer, and a step of discarding the virtual packet.