IEEE 802.1Qau
E314965
IEEE 802.1Qau is an Ethernet networking standard that defines congestion notification mechanisms to improve traffic management and prevent packet loss in data center and carrier networks.
All labels observed (4)
| Label | Occurrences |
|---|---|
| IEEE 802.1Qau canonical | 6 |
| IEEE 802.1Qau Congestion Notification | 1 |
| IEEE 802.1Qau standard | 1 |
| IEEE 802.1Qau-2010 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2769425 — 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: IEEE 802.1Qau Context triple: [IEEE 802.1Qbg, relatedTo, IEEE 802.1Qau]
-
A.
IEEE 802.1Qfa
IEEE 802.1Qfa is an amendment to the IEEE 802.1Q standard that specifies enhancements for deterministic, time-sensitive networking in bridged Ethernet networks.
-
B.
IEEE 802.1Qat
IEEE 802.1Qat is an IEEE networking standard that defines Stream Reservation Protocol (SRP) mechanisms to support quality-of-service and resource reservation for time-sensitive audio/video streams over Ethernet networks.
-
C.
IEEE 802.1Qdr
IEEE 802.1Qdr is an amendment to the IEEE 802.1Q standard that enhances time-sensitive networking capabilities for deterministic, low-latency Ethernet communication.
-
D.
IEEE 802.1Qei
IEEE 802.1Qei is an Ethernet networking standard that specifies enhancements for frame preemption and improved traffic handling in time-sensitive networks.
-
E.
IEEE 802.1Qea
IEEE 802.1Qea is an amendment to the IEEE 802.1Q standard that enhances Ethernet bridging by adding mechanisms for improved traffic management and reliability in bridged 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: IEEE 802.1Qau Target entity description: IEEE 802.1Qau is an Ethernet networking standard that defines congestion notification mechanisms to improve traffic management and prevent packet loss in data center and carrier networks.
-
A.
IEEE 802.1Qfa
IEEE 802.1Qfa is an amendment to the IEEE 802.1Q standard that specifies enhancements for deterministic, time-sensitive networking in bridged Ethernet networks.
-
B.
IEEE 802.1Qat
IEEE 802.1Qat is an IEEE networking standard that defines Stream Reservation Protocol (SRP) mechanisms to support quality-of-service and resource reservation for time-sensitive audio/video streams over Ethernet networks.
-
C.
IEEE 802.1Qdr
IEEE 802.1Qdr is an amendment to the IEEE 802.1Q standard that enhances time-sensitive networking capabilities for deterministic, low-latency Ethernet communication.
-
D.
IEEE 802.1Qei
IEEE 802.1Qei is an Ethernet networking standard that specifies enhancements for frame preemption and improved traffic handling in time-sensitive networks.
-
E.
IEEE 802.1Qea
IEEE 802.1Qea is an amendment to the IEEE 802.1Q standard that enhances Ethernet bridging by adding mechanisms for improved traffic management and reliability in bridged networks.
- F. None of above. chosen
Statements (37)
| Predicate | Object |
|---|---|
| instanceOf |
Ethernet standard
ⓘ
IEEE 802.1 standard ⓘ networking standard ⓘ |
| abbreviationOfMessageType | CNM ⓘ |
| aimsTo |
control congestion
ⓘ
improve traffic management ⓘ prevent packet loss ⓘ |
| appliesTo |
Ethernet networks
ⓘ
linked to:
Ethernet
carrier networks ⓘ data center networks ⓘ |
| basedOn | Ethernet ⓘ |
| category | congestion control protocol ⓘ |
| compatibleWith |
IEEE 802.1Q VLAN tagging
ⓘ
linked to:
IEEE 802.1Q VLAN tagging standard
|
| defines | congestion notification mechanisms ⓘ |
| definesEntity |
congestion point
ⓘ
reaction point ⓘ |
| definesMessageType | Congestion Notification Message ⓘ |
| focusesOn | lossless Ethernet behavior under congestion ⓘ |
| fullName |
IEEE 802.1Qau Congestion Notification
ⓘ
linked to:
IEEE 802.1Qau
|
| hasAbbreviation | QCN ⓘ |
| improves | quality of service in Ethernet networks ⓘ |
| layer | Data Link Layer ⓘ |
| partOf |
IEEE 802.1Q family
ⓘ
linked to:
IEEE 802.1Q series
|
| reduces |
buffer overflow in switches
ⓘ
frame loss due to congestion ⓘ |
| relatedTo |
IEEE 802.1Qaz
ⓘ
IEEE 802.1Qbb ⓘ |
| scope | bridged and virtual bridged local area networks ⓘ |
| standardizedBy |
IEEE
ⓘ
IEEE 802.1 Working Group ⓘ |
| status | published IEEE standard ⓘ |
| supports | backward congestion notification ⓘ |
| usedIn | data center bridging ⓘ |
| uses | explicit congestion notification at Layer 2 ⓘ |
| usesMechanism |
end-to-end congestion notification
ⓘ
feedback-based rate control ⓘ |
| usesTransport | Ethernet MAC frames ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: IEEE 802.1Qau Description of subject: IEEE 802.1Qau is an Ethernet networking standard that defines congestion notification mechanisms to improve traffic management and prevent packet loss in data center and carrier networks.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: IEEE 802.1Qau
linked to: IEEE 802.1Qau