Data Link Layer
E383592
The Data Link Layer is the second layer of the OSI model responsible for reliable node-to-node data transfer, framing, and physical addressing (MAC) over a physical network medium.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Data Link Layer canonical | 1 |
| OSI data link layer | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3748832 — 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: Data Link Layer Context triple: [IEEE 802.1Qfp, layer, Data Link Layer]
-
A.
Network interface layer
The network interface layer is the lowest layer in the Internet protocol suite responsible for transmitting raw packets over physical network media using hardware-specific addressing and framing.
-
B.
IEEE 802.2
IEEE 802.2 is a legacy IEEE networking standard that defines the Logical Link Control (LLC) sublayer of the data link layer for local and metropolitan area networks.
-
C.
OSI physical layer
The OSI physical layer is the lowest layer of the OSI model, responsible for transmitting raw bits over a physical medium through electrical, optical, or radio signals and defining the hardware specifications for network connections.
-
D.
IEEE 802.3 MAC frame
The IEEE 802.3 MAC frame is the standard Ethernet data link layer frame structure that encapsulates payload data with addressing, type/length, and error-checking fields for transmission over IEEE 802.3 networks.
-
E.
OSI protocol suite
The OSI protocol suite is a conceptual networking framework that defines a seven-layer model for how different communication protocols interact to enable data exchange across 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: Data Link Layer Target entity description: The Data Link Layer is the second layer of the OSI model responsible for reliable node-to-node data transfer, framing, and physical addressing (MAC) over a physical network medium.
-
A.
Network interface layer
The network interface layer is the lowest layer in the Internet protocol suite responsible for transmitting raw packets over physical network media using hardware-specific addressing and framing.
-
B.
IEEE 802.2
IEEE 802.2 is a legacy IEEE networking standard that defines the Logical Link Control (LLC) sublayer of the data link layer for local and metropolitan area networks.
-
C.
OSI physical layer
The OSI physical layer is the lowest layer of the OSI model, responsible for transmitting raw bits over a physical medium through electrical, optical, or radio signals and defining the hardware specifications for network connections.
-
D.
IEEE 802.3 MAC frame
The IEEE 802.3 MAC frame is the standard Ethernet data link layer frame structure that encapsulates payload data with addressing, type/length, and error-checking fields for transmission over IEEE 802.3 networks.
-
E.
OSI protocol suite
The OSI protocol suite is a conceptual networking framework that defines a seven-layer model for how different communication protocols interact to enable data exchange across networks.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf | OSI model layer ⓘ |
| abbreviation | DLL ⓘ |
| controlsAccessTo | shared transmission medium ⓘ |
| dataUnit | frame ⓘ |
| decapsulates | frames into Network Layer packets ⓘ |
| defines |
frame format
ⓘ
frame header ⓘ frame trailer ⓘ |
| encapsulates | Network Layer packets into frames ⓘ |
| followsLayer | Physical Layer ⓘ |
| handles | MAC addressing ⓘ |
| implements |
access control mechanisms
ⓘ
error detection codes ⓘ flow control mechanisms ⓘ frame synchronization ⓘ |
| independentOf | upper-layer protocols ⓘ |
| layerNumber | 2 ⓘ |
| operatesOver | physical network medium ⓘ |
| OSIModelLayerName | Layer 2 ⓘ |
| partOf |
OSI protocol suite
ⓘ
surface form:
OSI model
|
| performs |
CRC-based error detection
ⓘ
acknowledgment of received frames (in some protocols) ⓘ retransmission of lost or corrupted frames (in some protocols) ⓘ |
| precedesLayer | Network Layer ⓘ |
| primaryFunction |
error detection
ⓘ
flow control ⓘ framing ⓘ media access control ⓘ physical addressing ⓘ reliable node-to-node data transfer ⓘ |
| responsibleFor |
error notification to higher layers
ⓘ
framing of network layer packets ⓘ link establishment ⓘ link maintenance ⓘ link termination ⓘ node-to-node delivery ⓘ |
| subLayer |
Logical Link Control sublayer
ⓘ
Media Access Control sublayer ⓘ |
| typicalProtocol |
Ethernet
ⓘ
FDDI ⓘ Frame Relay ⓘ HDLC ⓘ PPP ⓘ Token Ring ⓘ Wi-Fi ⓘ |
| uses | hardware addresses for local delivery ⓘ |
| usesAddressType | MAC address ⓘ |
| visibleTo | Network Layer ⓘ |
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: Data Link Layer Description of subject: The Data Link Layer is the second layer of the OSI model responsible for reliable node-to-node data transfer, framing, and physical addressing (MAC) over a physical network medium.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
OSI data link layer