IEEE 802.1ag
E314603
IEEE 802.1ag is an Ethernet networking standard that defines Connectivity Fault Management (CFM) mechanisms for monitoring, detecting, and troubleshooting faults in Ethernet networks.
All labels observed (6)
How this entity was disambiguated
This entity first appeared as the object of triple T2963500 — 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 802.1ag Context triple: [IEEE 802.1Qfm, relatedTo, IEEE 802.1ag]
-
A.
IEEE 802.1AB
IEEE 802.1AB is a networking standard that defines the Link Layer Discovery Protocol (LLDP) for advertising and discovering device identity and capabilities on IEEE 802 LANs.
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B.
IEEE 802.1BA
IEEE 802.1BA is an IEEE standard that defines profiles and requirements for Audio Video Bridging (AVB) networks to ensure reliable, low-latency transport of time-sensitive audio and video streams over Ethernet.
-
C.
IEEE 802.1ah
IEEE 802.1ah is an Ethernet networking standard, often called Provider Backbone Bridges (PBB), that enables scalable, MAC-in-MAC encapsulation for carrier-grade layer 2 networks.
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D.
IEEE 802.1AX
IEEE 802.1AX is an IEEE networking standard that defines link aggregation, enabling multiple physical network links to be combined into a single logical link for increased bandwidth and redundancy.
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E.
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.
- 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 802.1ag Target entity description: IEEE 802.1ag is an Ethernet networking standard that defines Connectivity Fault Management (CFM) mechanisms for monitoring, detecting, and troubleshooting faults in Ethernet networks.
-
A.
IEEE 802.1AB
IEEE 802.1AB is a networking standard that defines the Link Layer Discovery Protocol (LLDP) for advertising and discovering device identity and capabilities on IEEE 802 LANs.
-
B.
IEEE 802.1BA
IEEE 802.1BA is an IEEE standard that defines profiles and requirements for Audio Video Bridging (AVB) networks to ensure reliable, low-latency transport of time-sensitive audio and video streams over Ethernet.
-
C.
IEEE 802.1ah
IEEE 802.1ah is an Ethernet networking standard, often called Provider Backbone Bridges (PBB), that enables scalable, MAC-in-MAC encapsulation for carrier-grade layer 2 networks.
-
D.
IEEE 802.1AX
IEEE 802.1AX is an IEEE networking standard that defines link aggregation, enabling multiple physical network links to be combined into a single logical link for increased bandwidth and redundancy.
-
E.
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.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Connectivity Fault Management standard
ⓘ
Ethernet networking standard ⓘ IEEE standard ⓘ |
| abbreviation | CFM ⓘ |
| area |
Ethernet OAM
ⓘ
linked to:
IEEE 802.1ag
|
| defines | Connectivity Fault Management ⓘ |
| definesConcept |
CFM domains
ⓘ
CFM hierarchy ⓘ CFM maintenance points ⓘ Maintenance Association ⓘ Maintenance Domain ⓘ Maintenance association end point ⓘ Maintenance intermediate point ⓘ Maintenance level ⓘ |
| definesFunction |
fault detection
ⓘ
fault isolation ⓘ fault monitoring ⓘ fault notification ⓘ fault verification ⓘ |
| definesLayer | Layer 2 OAM functions ⓘ |
| definesMechanism |
continuity check
ⓘ
linktrace ⓘ loopback ⓘ |
| definesProtocolDataUnit |
CFM PDU
ⓘ
Continuity Check Message ⓘ Linktrace Message ⓘ Loopback Message ⓘ |
| focusesOn |
fault detection in Ethernet networks
ⓘ
fault isolation in Ethernet networks ⓘ fault management in Ethernet networks ⓘ fault notification in Ethernet networks ⓘ |
| fullName |
IEEE Standard for Local and Metropolitan Area Networks—Virtual Bridged Local Area Networks—Amendment: Connectivity Fault Management
ⓘ
linked to:
IEEE 802.1ag
|
| organization | Institute of Electrical and Electronics Engineers ⓘ |
| OSIlayer | data link layer ⓘ |
| partOf | IEEE 802 family of standards ⓘ |
| relatedTo |
IEEE 802.1Q
ⓘ
linked to:
IEEE 802.1Q series
IEEE 802.3ah ⓘ ITU-T Y.1731 ⓘ |
| scope |
bridged LANs
ⓘ
provider backbone networks ⓘ |
| status | incorporated into IEEE 802.1Q ⓘ |
| supports |
Operations, Administration, and Maintenance
ⓘ
linked to:
Operations Administration and Maintenance
carrier Ethernet OAM ⓘ |
| usedFor |
localizing connectivity problems
ⓘ
monitoring Ethernet connectivity ⓘ troubleshooting Ethernet faults ⓘ |
| usedIn |
enterprise Ethernet networks
ⓘ
service provider Ethernet networks ⓘ |
| workingGroup |
IEEE 802.1
ⓘ
linked to:
IEEE 802.1 standards family
|
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 802.1ag Description of subject: IEEE 802.1ag is an Ethernet networking standard that defines Connectivity Fault Management (CFM) mechanisms for monitoring, detecting, and troubleshooting faults in Ethernet networks.
Referenced by (18)
Full triples — surface form annotated when it differs from this entity's canonical label.
IEEE 802.1ag
→
fullName
→
IEEE Standard for Local and Metropolitan Area Networks—Virtual Bridged Local Area Networks—Amendment: Connectivity Fault Management
ⓘ
linked to: IEEE 802.1ag
linked to: IEEE 802.1ag
linked to: IEEE 802.1ag
linked to: IEEE 802.1ag
linked to: IEEE 802.1ag