A method and system is disclosed for traffic management in data networks. A first operation comprises allocating a first IP address to a first interface of a client device for data communications using a first sub-flow over a first path. Another operation comprises allocating a second IP address to a second interface of the client device for data communications using a second sub-flow over a second, different path, the second IP address being associated with the first IP address. Another operation comprises sending information relating to the allocated first and second IP addresses for the client device to an aggregating device for aggregating the first and second sub-flows, when received from the client device, for providing aggregated data to a destination device.
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