data link layer of network protocol function

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• Data link layer — The OSI model 7 Application layer 6 Presentation layer 5 Session layer 4 Transport layer 3 Network layer 2 …   Wikipedia

• Data Link Layer — The Data Link Layer is Layer 2 of the seven layer OSI model. It responds to service requests from the Network Layer and issues service requests to the Physical Layer.The Data Link Layer is the protocol layer which transfers data between adjacent… …   Wikipedia

• Open Data-Link Interface — The Open Data Link Interface (ODI), developed by Apple and Novell, serves the same function as Microsoft and 3COM s Network Driver Interface Specification (NDIS). Originally, ODI was written for NetWare and Macintosh environments. Like NDIS, ODI… …   Wikipedia

• Network switch — A network switch or switching hub is a computer networking device that connects network segments. The term commonly refers to a multi port network bridge that processes and routes data at the data link layer (layer 2) of the OSI model. Switches… …   Wikipedia

• Protocol data unit — In telecommunications, the term protocol data unit (PDU) has the following meanings: #Information that is delivered as a unit among peer entities of a network and that may contain control information, address information, or data. #In layered… …   Wikipedia

• Communications protocol — For other senses of this word, see Protocol. A communications protocol is a system of digital message formats and rules for exchanging those messages in or between computing systems and in telecommunications. A protocol may have a formal… …   Wikipedia

• Computer network — Computer networks redirects here. For the periodical, see Computer Networks (journal). Datacom redirects here. For other uses, see Datacom (disambiguation). Internet map. The Internet is a global system of interconnected computer networks that… …   Wikipedia

• Transport layer — The OSI model 7 Application layer 6 Presentation layer 5 Session layer 4 Transport layer 3 Network layer 2 …   Wikipedia

• Transport Layer — In computer networking, the Transport Layer is a group of methods and protocols within a layered architecture of network components, within which it is responsible for encapsulating application data blocks into datagrams (packets) suitable for… …   Wikipedia

• Tunneling protocol — Computer networks use a tunneling protocol when one network protocol (the delivery protocol) encapsulates a different payload protocol. By using tunneling one can (for example) carry a payload over an incompatible delivery network, or provide a… …   Wikipedia

• Integrated Services Digital Network — ISDN redirects here. For other uses, see ISDN (disambiguation). Integrated Services Digital Network (ISDN) is a set of communications standards for simultaneous digital transmission of voice, video, data, and other network services over the… …   Wikipedia