Reference document

Org
IETF
Pubnum
RFC 2474
Date
1998
Version
Title
Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers

Applicability

Differentiated services enhancements to the Internet protocol are intended to enable scalable service discrimination in the Internet without the need for per-flow state and signaling at every hop. A variety of services may be built from a small, well-defined set of building blocks which are deployed in network nodes. The services may be either end-to-end or intra-domain; they include both those that can satisfy quantitative performance requirements (e.g., peak bandwidth) and those based on relative performance (e.g., class differentiation). Services can be constructed by a combination of

  • setting bits in an IP header field at network boundaries (autonomous system boundaries, internal administrative boundaries, or hosts),
  • using those bits to determine how packets are forwarded by the nodes inside the network, and
  • conditioning the marked packets at network boundaries in accordance with the requirements or rules of each service.

Responsible Party

Name
FMN CPWG

Status

URI
https://www.ietf.org/rfc/rfc2474.txt

History

Flag Date RFC Version
added 1998-11-10 0.1
changed 2003-03-18 0.5
changed 2005-09-16 0.7
changed 2017-01-14 9-17 10.0
UUID
4bf496f5-cdf7-4211-9939-17f311f995ab

Relationships

This standard is used by the following service profiles: