Computer-readable media for dynamic quality of service assignment are described. In embodiments, a data packet is received that is part of a communications stream and a dynamically modifiable quality of service indicator (DMQOSI) is embedded into the data packet wherein, in various embodiments, the DMQOSI indicates a prescribed quality of service that is associated with the data packet and is modifiable prior to completing a communication of the communications stream. In various embodiments, the data packet is communicated from a source to a destination that at least periodically references the DMQOSI to ensure that the data packet is being communicated consistent with the prescribed quality of service associated with the data packet.