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RFC 2474 — Definition of the differentiated services field (DS field) in the IPv4 and IPv6 headers. Note that the DS field of 8 bits (the bottom two unused) in [2] was later split into the current 6-bit DS field and a separate 2-bit ECN field. [3] RFC 2475 — An architecture for differentiated services. RFC 2597 — Assured forwarding PHB group.
Traffic Class: 6+2 bits The bits of this field hold two values. The six most-significant bits hold the differentiated services field (DS field), which is used to classify packets. [2] [3] Currently, all standard DS fields end with a '0' bit. Any DS field that ends with two '1' bits is intended for local or experimental use. [4]
It is now called the "DS" (Differentiated Services, "DiffServ") field and the upper 6 bits contain a value called the "DSCP" (Differentiated Services Code Point). The upper 3 bits of DS maintains compatibility with IP Precedence. Since RFC 3168, the remaining two bits (the two least significant bits) are used for Explicit Congestion Notification.
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 in the presence of congestion. Routers that support differentiated service not only have to look up the output interface for the ...
RFC 2211 - Specification of the Controlled-Load Network Element Service; RFC 2212 - Specification of Guaranteed Quality of Service; RFC 2215 - General Characterization Parameters for Integrated Service Network Elements; RFC 2205 - Resource ReSerVation Protocol (RSVP) Cisco.com, Cisco Whitepaper about IntServ and DiffServ
The IETF has also published Baker, Fred; Babiarz, Jozef; Chan, Kwok Ho (August 2006), Configuration Guidelines for DiffServ Service Classes, doi: 10.17487/RFC4594, RFC 4594 as an informative or best practices document about the practical aspects of designing a QoS solution for a DiffServ network. The document tries to identify applications ...
A person then dips skewered fruit into the mixture, encasing it in the sugar. Once it dries, it creates a glass-like coating. While tanghulu was popular this year, doctors warned that hot sugar ...
If an RFC is part of a proposal that is on the Standards Track, then at the first stage, the standard is proposed and subsequently organizations decide whether to implement this Proposed Standard. After the criteria in RFC 6410 is met (two separate implementations, widespread use, no errata etc.), [12] the RFC can advance to Internet Standard.