Some embodiments include a device for managing end-to-end connections of a network including a plurality of end-to-end connections with assigned queues including a data flow having data packets to be transmitted collectively comprising: a processor; a state unit to provide a current status of a quality of service parameter of a queue to which a new data flow is to be allocated; a resource allocation unit to allocate the new data flow to the queue based on a threshold for the quality of service parameter for the queue and the current status of the quality of service parameter of the queue; and a routing unit to route the data packets of the new data flow based on the allocation.