1. A method for communicating among stations in a network, the method comprising: establishing a plurality of end-to-end connections each comprising a plurality of data units, wherein the data units belonging to each connection are assigned a traffic class; receiving the plurality of data units at a station; determining the traffic class and a next hop destination for the plurality of data units; combining one or more data units that share a common traffic class and a common next hop destination into one or more traffic class data units; and providing a link to transmit the one or more traffic class data units to a next hop destination based on service quality requirements for the traffic class associated with the traffic class data unit.