Bluetooth
It is a Wireless Personal Area Network (WPAN) technology and is used for exchanging data over smaller distances. This technology was invented by Ericson in 1994. It operates in the…
What are wireless LANs?
Wireless LANs (WLANs) are wireless computer networks that use high-frequency radio waves instead of cables for connecting the devices within a limited area forming LAN (Local Area Network). Users connected…
Wireless LAN
Wireless LAN stands for Wireless Local Area Network. It is also called LAWN (Local Area Wireless Network). WLAN is one in which a mobile user can connect to a Local Area…
Functions of LLC and MAC sub-layers of Data Link Layer
This post gives a brief overview of the two sub-layers of the data link layer, namely LLC (Logical Link Control) and MAC (Media Access Control).The data link layer functionality is usually split it…
Logical Link Control (LLC)
The logical link control (LLC) is the upper sublayer of the data link layer of the open system interconnections (OSI) reference model for data transmission. It acts act an interface…
MAC Addresses
Media Access Control (MAC) Layer 2 Sublayer This topic provides an introduction to the MAC sublayer of the data link layer (Layer 2). In Layer 2 of a network, the…
Media Access Control
What is Media Access Control? A media access control is a network data transfer policy that determines how data is transmitted between two computer terminals through a network cable. The…
Data link control (DLC)
DLC (data link control) is the service provided by the Data Link layer of function defined in the Open Systems Interconnection (OSI) model for network communication. The Data Link layer is responsible…
Error Detection Correction
There are many reasons such as noise, cross-talk etc., which may help data to get corrupted during transmission. The upper layers work on some generalized view of network architecture and…
Data-link Control Protocols
Data-link layer is responsible for implementation of point-to-point flow and error control mechanism. Flow Control When a data frame (Layer-2 data) is sent from one host to another over a…
