Differentiated services or DiffServ is a computer networking architecture that specifies a simple, scalable and coarse-grained mechanism for classifying and managing network traffic and providing quality of service (QoS) on modern IP networks. DiffServ can, for example, be used to provide low-latency to critical network traffic such as voice or streaming media while providing simple best-effort service to non-critical services such as web traffic or file transfers.
DiffServ uses the 6-bit Differentiated Services Field (DS field) in the IP header for packet classification purposes. The DS field and ECN field replace the outdated IPv4 TOS field.
Other articles related to "differentiated services, differentiated, differentiated service":
... RFC 3289—Management Information Base for the Differentiated Services Architecture RFC 3290—An Informal Management Model for Diffserv Routers RFC 3317—Differentiated ...
... IP differentiated services provides an additional method to select outgoing interfaces, based on a field that indicates the forwarding priority of the packet, as well as the preference of the packet to be dropped ... Routers that support differentiated service not only have to look up the output interface for the destination address, but need to send the packet to the interface ... In other words, as well as matching the destination address, the FIB has to match differentiated services code points (DSCP) ...
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