Handover is performed from a first radio network controller to a second radio network controller, where the first and second radio network controllers are associated with corresponding first and second control nodes. An access gateway node receives at least one command that is transmitted by one of the first and second control nodes associated with the respective first and second radio network controllers, where the access gateway node contains data functions of the first and second control nodes. In response to the at least one command, the access gateway node bicasts traffic data from the data functions for receipt by the first and second radio network controllers.