A method of encoding data for distribution over a network includes determining a relative importance of content of a data packet associated with a predetermined class-of-service as compared to content of other data packets associated with the predetermined class-of-service. The data packet is marked to indicate the relative importance of the content thereof within the predetermined class-of-service. For example, based on the information contained in the data packet, the data packet may be marked as discard-eligible. The data packet is selectively discarded based on the marking thereof. Related methods, systems, and devices are also discussed.