Logical Link Control layer
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Logical Link Control layer


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DEFINITION - The Logical Link Control (LCL) layer is one of two sublayers of the Data-Link layer in the Open Systems Interconnection (OSI) model of communication. The LCL layer is concerned with managing traffic (flow and error control) over the physical medium. The LCL layer also identifies a line protocol, such as SDLC, NetBIOS, or NetWare, and may also assign sequence numbers to frames and track acknowledgements.

The other Data-Link sublayer is the Media Access Control layer.

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Extending OSI to Network Security -- Chapter 1 of 'Hack the Stack': The goal of this chapter is to take the well-known Open Systems Interconnect (OSI) model and use it to present security topics in a new and unique way.
OSI model: Crash Course: The OSI model is the conceptual backbone of most enterprise networks, but do you remember all the details? Read our rundown of the OSI model and what all those layers do.
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CONTRIBUTORS: Steve Curtis
LAST UPDATED: 07 Aug 2006

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