Abstract: A network communication system includes one or more talkers that may communicate data streams to one or more listeners over a network, such as an Ethernet Audio/Video Bridging network. Before transmitting a new data stream, a talker may request a reservation for bandwidth through a controller that is configured to manage and/or control the flow of data streams over the network. If there is not enough bandwidth, then the controller may determine whether any existing data streams may be transmitted at lower bandwidths to make available enough bandwidth for the new data stream. Alternatively, the controller may determine whether any existing data streams having lower priorities than the new data stream may be terminated to make available enough bandwidth for the new data stream.