Patent ID: 8578033

Claim:
A method of transmitting a media stream from a server device to a client device the method comprising: receiving a discovery message on a predetermined port of the server device, the discovery message having a payload data field that contains a first identifier; storing information recording that the discovery message has been received; receiving a set-up request message having a payload data field that contains a second identifier; comparing the first identifier and the second identifier of the received set up request message and the discovery message according to the information recording reception, at least when the discovery message has been received before the set-up request message; selecting transport parameters for transmission of the media stream responsive to detection that the first identifier and the second identifier have matching values, the selected transport parameters being based on data from said set-up request message and a port identification from a source field of the discovery message; and transmitting the media stream in accordance with the selected transport parameters to the client device addressed to the port determined from the source field of the discovery message.