18. The method of claim 13 , further comprising the network node caching the selected network parameters and identifiers for identification of subsequent packets received for the identified flow of data packets and outputting according to the selected network parameters.
19. The method of claim 18 , wherein the selecting includes assigning the selected network parameters to the subsequent packets received for the identified flow of data packets based on the cached selected network parameters and identifiers, independent of the XML tags specifying the prescribed user-selected quality of service attributes within the subsequent packets.