Data link layer
The data link layer, or layer 2, is the second layer of the seven-layer OSI model of computer networking. This layer is the protocol layer that transfers data between nodes on a network segment across the physical layer. The data link layer provides the functional and procedural means to transfer data between network entities and may also provide the means to detect and possibly correct errors that can occur in the physical layer.
- Comment
- enThe data link layer, or layer 2, is the second layer of the seven-layer OSI model of computer networking. This layer is the protocol layer that transfers data between nodes on a network segment across the physical layer. The data link layer provides the functional and procedural means to transfer data between network entities and may also provide the means to detect and possibly correct errors that can occur in the physical layer.
- Has abstract
- enThe data link layer, or layer 2, is the second layer of the seven-layer OSI model of computer networking. This layer is the protocol layer that transfers data between nodes on a network segment across the physical layer. The data link layer provides the functional and procedural means to transfer data between network entities and may also provide the means to detect and possibly correct errors that can occur in the physical layer. The data link layer is concerned with local delivery of frames between nodes on the same level of the network. Data-link frames, as these protocol data units are called, do not cross the boundaries of a local area network. Inter-network routing and global addressing are higher-layer functions, allowing data-link protocols to focus on local delivery, addressing, and media arbitration. In this way, the data link layer is analogous to a neighborhood traffic cop; it endeavors to arbitrate between parties contending for access to a medium, without concern for their ultimate destination. When devices attempt to use a medium simultaneously, frame collisions occur. Data-link protocols specify how devices detect and recover from such collisions, and may provide mechanisms to reduce or prevent them. Examples of data link protocols are Ethernet, Point-to-Point Protocol (PPP), HDLC and ADCCP. In the Internet Protocol Suite (TCP/IP), the data link layer functionality is contained within the link layer, the lowest layer of the descriptive model, which is assumed to be independent of physical infrastructure.
- Hypernym
- Layer
- Is primary topic of
- Data link layer
- Label
- enData link layer
- Link from a Wikipage to an external page
- www.codeproject.com/Articles/57072/DataLink-Simulator
- www.cs.gmu.edu/~huangyih/656/error.pdf
- archive.org/details/isbn_9788177581652
- Link from a Wikipage to another Wikipage
- 1-Wire
- ADCCP
- Amiga
- ARCnet
- Asynchronous Transfer Mode
- Automatic repeat request
- Bitstream
- Bit stuffing
- Byte stuffing
- Carrier-sense multiple access with collision avoidance
- Carrier-sense multiple access with collision detection
- Category:Link protocols
- Category:OSI model
- Cisco Discovery Protocol
- Cisco HDLC
- Collision avoidance
- Collision detection
- Computer network
- Controller Area Network
- Cut-through switching
- Cyclic redundancy check
- Data frame
- Data Link Escape
- Econet
- End-of-Text character
- Error control
- Error detection
- Error detection and correction
- Escape sequence
- Ethernet
- Ethernet Automatic Protection Switching
- Ethernet over coax
- FDDI
- Fiber Distributed Data Interface
- Flow control (data)
- Forward error correction
- Frame (networking)
- Frame (telecommunications)
- Frame Relay
- Frame synchronization
- G.hn
- HDLC
- High-Level Data Link Control
- IEEE 802
- IEEE 802.11
- IEEE 802.1aq
- IEEE 802.2
- Internet Protocol Suite
- ITU-T
- I²C
- LAN switching
- LattisNet
- Link layer
- Link Layer Discovery Protocol
- Local area network
- LocalTalk
- Logical link control
- MAC address
- MAC filtering
- Media access control
- Medium access control
- Metadata
- MIL-STD-1553
- Multiple access method
- Multiplexing
- Multiprotocol Label Switching
- Network Driver Interface Specification
- Network layer
- Network segment
- Nortel Discovery Protocol
- O
- Open Data-Link Interface
- OSI model
- Packet switching
- Parity bit
- Patparganj
- PCI Express
- Physical layer
- Point-to-Point Protocol
- Power line communication
- Profibus
- Protocol data unit
- Quality of service
- Reliability (computer networking)
- SANA-II
- Scheduling algorithm
- Serial communication
- Serial Line Internet Protocol
- Shortest Path Bridging
- SpaceWire
- Spanning Tree Protocol
- Split multi-link trunking
- StarLan
- Start Of Text
- Store-and-forward
- Sync sequence
- Token Ring
- Transfer (computing)
- Transport layer
- Transport-layer protocol
- TRILL
- TRILL (computing)
- UDLD
- USB
- V.42
- Virtual LAN
- Wireless LAN
- SameAs
- Adatkapcsolati réteg
- Camada de enlace de dados
- Capa d'enllaç de dades
- Capa de enlace de datos
- Couche liaison de données
- Datalänkskikt
- Datalinklaag
- Datalinklaget
- Datalinklaget
- Datalink-laget
- Data link layer
- Data link layer
- Data Link Layer
- Data Link Layer
- Datu posma slānis
- Kanalikiht
- Kanal səviyyəsi
- Lapisan pautan data
- Lapisan taut data
- Linková vrstva
- Livello di collegamento dati
- Lotura geruza
- m.013yrj
- Nivell de conligament di dacc
- Plast podatkovne povezave
- Q194134
- rY3s
- Sloj veze
- Stratum conexionis datorum
- Tầng liên kết dữ liệu
- Veri bağlantısı katmanı
- Vrstva dátového spoja
- Warstwa łącza danych
- Επίπεδο ζεύξης δεδομένων
- Арналық деңгей
- Канален слой на OSI модела
- Канальний рівень
- Канальный уровень
- Канальны ўзровень
- Податочно ниво
- Слој везе
- שכבת הקו של מודל ה-OSI
- طبقة ربط البيانات
- لایه پیوند دادهای
- データリンク層
- 数据链路层
- 데이터 링크 계층
- SeeAlso
- Bit-sequence independence
- Subject
- Category:Link protocols
- Category:OSI model
- WasDerivedFrom
- Data link layer?oldid=1123039144&ns=0
- WikiPageInterLanguageLink
- OSI-Modell
- WikiPageLength
- 15960
- Wikipage page ID
- 152949
- Wikipage revision ID
- 1123039144
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