The present invention relates to a marking determining method and a related device for
determining a packet marking of packets of an incoming packet-flow, in order to keep the
packets in conformance with a traffic policy. The determining is based on an actual value of
a traffic reservation parameter, while the traffic reservation parameter is a measure of
available network resources dedicated to packets of said incoming packet-flow having a pre-
assigned priority. The determining further is based on the pre-assigned priority of the …