Data Link Layer

E383592

OSI model layer

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.

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

All labels observed (3)

Label	Occurrences
Data Link Layer canonical	1
MAC layer	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 model ⓘ linked to: OSI protocol suite
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

Referenced by (3)

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

IEEE 802.1Qfp → layer → Data Link Layer ⓘ

Network interface layer → mapsTo → OSI data link layer ⓘ

linked to: Data Link Layer

GMII → connectsLayer → MAC layer ⓘ