Random Early Detection

E325872

active queue management algorithm congestion avoidance mechanism

Random Early Detection is a congestion avoidance mechanism for packet-switched networks that probabilistically drops packets before a queue becomes full to signal and control incipient congestion.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (9)

Label	Occurrences
Random Early Detection canonical	8
Adaptive RED	2
Random Early Detection Gateways for Congestion Avoidance	2
BLUE queue management algorithm	1
RED active queue management	1
Random Early Detection (RED)	1
Random Early Detection for congestion avoidance	1
Random Early Detection gateways for congestion avoidance	1
Weighted RED	1

How this entity was disambiguated

This entity first appeared as the object of triple T3081815 — 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: Random Early Detection
Context triple: [RFC 3168, relatedConcept, Random Early Detection]

A. QUIC Loss Detection and Congestion Control
QUIC Loss Detection and Congestion Control is an IETF specification that defines how the QUIC transport protocol detects packet loss and manages congestion to ensure efficient and reliable data transmission on the internet.
B. Classless Inter-Domain Routing
Classless Inter-Domain Routing (CIDR) is an IP addressing and routing scheme that replaces traditional class-based networks to enable more efficient allocation of IP address space and improved route aggregation on the internet.
C. Time-Sensitive Networking
Time-Sensitive Networking is a set of IEEE 802 Ethernet standards that enable deterministic, low-latency, and highly reliable communication for real-time applications such as industrial automation, automotive, and professional audio/video.
D. IEEE 802.1CB Frame Replication and Elimination for Reliability
IEEE 802.1CB Frame Replication and Elimination for Reliability is an Ethernet Time-Sensitive Networking (TSN) standard that enhances reliability by duplicating critical traffic across multiple paths and removing redundant copies at the receiver to prevent packet loss.
E. Real-time Transport Control Protocol
Real-time Transport Control Protocol (RTCP) is a companion protocol to RTP that provides out-of-band control, quality-of-service feedback, and synchronization for real-time audio and video streams over IP networks.
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: Random Early Detection
Target entity description: Random Early Detection is a congestion avoidance mechanism for packet-switched networks that probabilistically drops packets before a queue becomes full to signal and control incipient congestion.

A. QUIC Loss Detection and Congestion Control
QUIC Loss Detection and Congestion Control is an IETF specification that defines how the QUIC transport protocol detects packet loss and manages congestion to ensure efficient and reliable data transmission on the internet.
B. Classless Inter-Domain Routing
Classless Inter-Domain Routing (CIDR) is an IP addressing and routing scheme that replaces traditional class-based networks to enable more efficient allocation of IP address space and improved route aggregation on the internet.
C. Time-Sensitive Networking
Time-Sensitive Networking is a set of IEEE 802 Ethernet standards that enable deterministic, low-latency, and highly reliable communication for real-time applications such as industrial automation, automotive, and professional audio/video.
D. IEEE 802.1CB Frame Replication and Elimination for Reliability
IEEE 802.1CB Frame Replication and Elimination for Reliability is an Ethernet Time-Sensitive Networking (TSN) standard that enhances reliability by duplicating critical traffic across multiple paths and removing redundant copies at the receiver to prevent packet loss.
E. Real-time Transport Control Protocol
Real-time Transport Control Protocol (RTCP) is a companion protocol to RTP that provides out-of-band control, quality-of-service feedback, and synchronization for real-time audio and video streams over IP networks.
F. None of above. chosen

Statements (47)

Predicate	Object
instanceOf	active queue management algorithm ⓘ congestion avoidance mechanism ⓘ
abbreviation	RED ⓘ
actsOn	incoming packets ⓘ
aimsTo	avoid global synchronization of TCP flows ⓘ keep queueing delay low ⓘ maintain high link utilization ⓘ
canBeCombinedWith	Explicit Congestion Notification ⓘ linked to: The Addition of Explicit Congestion Notification (ECN) to IP
category	Internet congestion control ⓘ network traffic management ⓘ
configurationChallenge	sensitive to parameter settings ⓘ
contrastsWith	tail drop ⓘ
deployment	implemented in many router operating systems ⓘ
describedIn	Random Early Detection Gateways for Congestion Avoidance ⓘ linked to: Random Early Detection
designedFor	routers ⓘ
dropPolicy	does not drop packets when average queue size is below minimum threshold ⓘ drops all packets when average queue size is above maximum threshold ⓘ drops packets with probability increasing with average queue size ⓘ
feedbackMechanism	implicit congestion notification via packet loss ⓘ
influenced	Adaptive RED ⓘ linked to: Random Early Detection Controlled Delay (CoDel) ⓘ linked to: CoDel Proportional Integral controller Enhanced (PIE) ⓘ Random Early Marking ⓘ Weighted RED ⓘ linked to: Active Queue Management
influences	end-to-end congestion control algorithms ⓘ
introducedBy	Sally Floyd ⓘ Van Jacobson ⓘ
introducedIn	early 1990s ⓘ
keyParameter	maximum drop probability ⓘ maximum threshold ⓘ minimum threshold ⓘ
limitation	can be difficult to tune for diverse traffic patterns ⓘ
operatesIn	packet-switched networks ⓘ
primaryGoal	congestion avoidance ⓘ control incipient congestion ⓘ
problemAddressed	bufferbloat ⓘ
publicationYear	1993 ⓘ
publishedIn	IEEE/ACM Transactions on Networking ⓘ
queueBehavior	drops packets before queue becomes full ⓘ
queueDisciplineType	probabilistic queue management ⓘ
queueMetric	average queue size ⓘ
signals	impending congestion to end hosts ⓘ
standardizedIn	IETF RFC 2309 guidelines ⓘ
usedWith	TCP congestion control ⓘ linked to: Transmission Control Protocol
uses	exponentially weighted moving average of queue length ⓘ
usesMethod	probabilistic packet dropping ⓘ
worksOn	output queues ⓘ

How these facts were elicited