A method of providing high throughput and low latency Internet protocol (IP) transport using channel associated signaling (CAS) comprises receiving, by a network element, a packet, wherein the packet comprises user data and parameters for controlling traffic and bandwidth for a data flow along a common path, and wherein the header of the packet comprises the parameters for controlling traffic and bandwidth for the data flow along the common path, and controlling, by the network element, traffic according to the parameters in the packet.