The Distinguishing Services Architecture (DiffServ) defines an architecture that can implement scalable service classifications on the Internet. A "service" is defined by certain important features when transmitting a packet through one or several paths in one network. These features may include throughput, delay, time delay jitter, and / or packet loss rate, or statistical values, may also refer to the relative priority of network resources. Service classification requirements can adapt to different applications and users' needs and allow for classification of Internet services.
The DIFFSERV architecture consists of many functional elements implemented on the network node, including each hopping small set, data package classification, and traffic adjustment. Among them, traffic adjustment functions include measurement, tag, shaping, and monitoring strategies. In this architecture, complex classification and adjustment functions only on the boundary node of the network, and, by doing appropriate tags [DSField], aggregation traffic by DS segments of IPv4 and IPv6 Baotou, and then take it according to the markup Different every hop forwarding strategy.
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