RFC 2474

E325864

IETF Request for Comments Internet standard

RFC 2474 is an IETF standard that defines the Differentiated Services (DiffServ) field in the IPv4 and IPv6 headers to support scalable quality-of-service (QoS) in IP networks.

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All labels observed (3)

Label	Occurrences
RFC 2474 canonical	2
Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers	1
DiffServ	1

How this entity was disambiguated

This entity first appeared as the object of triple T3081782 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: RFC 2474
Context triple: [RFC 3168, updates, RFC 2474]

A. RFC 2460
RFC 2460 is the original Internet standard that specified the core IPv6 protocol header and packet format, later superseded by RFC 8200.
B. RFC 5340
RFC 5340 is the IETF specification that defines OSPF version 3, the link-state routing protocol for IPv6 networks.
C. RFC 3410
RFC 3410 is an informational RFC that provides an overview, framework, and goals for the Simple Network Management Protocol version 3 (SNMPv3) and its related specifications.
D. RFC 1452
RFC 1452 is an early Internet standards document that was later superseded by RFC 1901 as part of the evolution of network protocols.
E. RFC 1448
RFC 1448 is an early Internet standards document that specified a version of the Simple Network Management Protocol (SNMP) before being superseded by later revisions such as RFC 1905.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: RFC 2474
Target entity description: RFC 2474 is an IETF standard that defines the Differentiated Services (DiffServ) field in the IPv4 and IPv6 headers to support scalable quality-of-service (QoS) in IP networks.

A. RFC 2460
RFC 2460 is the original Internet standard that specified the core IPv6 protocol header and packet format, later superseded by RFC 8200.
B. RFC 5340
RFC 5340 is the IETF specification that defines OSPF version 3, the link-state routing protocol for IPv6 networks.
C. RFC 3410
RFC 3410 is an informational RFC that provides an overview, framework, and goals for the Simple Network Management Protocol version 3 (SNMPv3) and its related specifications.
D. RFC 1452
RFC 1452 is an early Internet standards document that was later superseded by RFC 1901 as part of the evolution of network protocols.
E. RFC 1448
RFC 1448 is an early Internet standards document that specified a version of the Simple Network Management Protocol (SNMP) before being superseded by later revisions such as RFC 1905.
F. None of above. chosen

Statements (41)

Predicate	Object
instanceOf	IETF Request for Comments ⓘ Internet standard ⓘ
appliesToProtocol	IPv4 ⓘ IPv6 ⓘ linked to: Internet Protocol version 6
area	Internet Area ⓘ
category	Standards Track ⓘ
defines	DS field ⓘ DSCP ⓘ Differentiated Services Code Point ⓘ linked to: Internet Protocol type of service field Differentiated Services field ⓘ linked to: Internet Protocol type of service field
definesBitLength	2-bit ECN compatibility space ⓘ 6-bit DSCP ⓘ
definesConcept	PHB ⓘ per-hop behavior ⓘ
definesStructure	8-bit Differentiated Services field in IP header ⓘ
definesUsage	packet classification for QoS ⓘ traffic conditioning based on DSCP ⓘ
intendedScope	scalable QoS in large IP networks ⓘ
obsoletedBy	RFC 3168 ⓘ RFC 3260 ⓘ
obsoletes	RFC 1349 ⓘ RFC 1455 ⓘ RFC 1631 ⓘ
publishedBy	IETF ⓘ linked to: Internet Engineering Task Force Internet Engineering Task Force ⓘ
publishedInSeries	Request for Comments ⓘ linked to: RFCs
purpose	enable differentiated services in IP networks ⓘ support scalable quality of service in IP networks ⓘ
redefinesField	IPv4 TOS octet ⓘ IPv6 Traffic Class octet ⓘ
relatedTo	DiffServ ⓘ linked to: RFC 2474 Differentiated Services architecture ⓘ linked to: Differentiated Services Working Group QoS ⓘ quality of service ⓘ
replacesField	IPv4 Type of Service field ⓘ
RFCNumber	2474 ⓘ
standardizes	encoding of DSCP in IP headers ⓘ
status	Proposed Standard ⓘ
title	Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers ⓘ linked to: RFC 2474
updatesFieldName	DS field ⓘ
workingGroup	Differentiated Services Working Group ⓘ

How these facts were elicited

Referenced by (4)

Full triples — surface form annotated when it differs from this entity's canonical label.

RFC 3168 → updates → RFC 2474 ⓘ

RFC 8999 → updates → RFC 2474 ⓘ

RFC 2474 → title → Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers ⓘ

linked to: RFC 2474

RFC 2474 → relatedTo → DiffServ ⓘ