Tag: TCP IP Model

02. Data Link Layer of OSI Model (Layer2)

OSI Model - Data Link Layer, ATech, Waqas Karim

OSI Model divides the network communication processes into seven layers in order to simplify it. Each layer performs specific functions to support the layers above it. The 7x Layer model starts from Physical till Application Layer. Data Link Layer is the second layer in the 7Layer OSI Model after Physical Layer. This is the place where most LAN, Ethernet and wireless LAN technologies are defined. Data Link controls the Layer2 Network boundary. The data link layer provides functional and procedural methods of transferring data between two points. It works like traffic control system which works without concern to their ultimate Read More …

01. Physical Layer of OSI Model (Layer1)

OSI Model - Physical Layer, ATech, Waqas Karim

The 7x Layer model starts from Physical till Application Layer. OSI Model divides the network communication processes into seven layers in order to simplify it. Each layer performs specific functions to support the layers above it. Physical Layer is the first & lowest layer in the 7Layer OSI Model. It is responsible for ultimate transmission of data between sender & receiver. The physical layer defines the means of transmitting raw bits over the transmission media.  It also defines how the data is carried over the Physical media rather than logical data packets over a physical data link connecting network nodes. The Read More …