DiffServ Architecture
The following figure shows the logical view of a Packet Classifier and Traffic Conditioner
+------------+ +--------+ +---------+
packets =====>| Classifier |=====>| Marker |=====>| Dropper |=====>
+------------+ +--------+ +---------+
Classifier selects packets based on the content of packet headers according to defined rules
Marker performs marking of packets
Meter performs metering of traffic
Shaper/Dropper shapes traffic to math a pre-defined pattern