H ELECTRICITY
H04 ELECTRIC COMMUNICATION TECHNIQUE
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
47/00 Traffic control in data switching networks
H04L47/10 Flow control; Congestion control
H04L47/24 Traffic characterised by specific attributes, e.g. priority or QoS
H04L47/2408 for supporting different services, e.g. a differentiated services [DiffServ] type of service