The Physical Layer includes cable specs, pin-out patterns, voltages, hubs, repeaters, network cards, protocol standards (RJ45, V series modem standards) and even host bus adapters (HBA).

Why physical layer is so important in the OSI model? What roles are played by this lowermost and the first layer of the OSI model?

Spread the loveThe OSI (Open Systems Interconnection) model is a conceptual framework used to describe the communication functions of a network. It consists of seven layers, each of which performs a ...

A tutorial on the Open Systems Interconnection (OSI) networking reference model plus tips on how to memorize the seven layers.

Layer 3, the Network Layer This is the most important layer of the OSI model, which performs real time processing and transfers data from nodes to nodes. Routers and switches are the devices used for ...

The Data Link Layer is one of my favorite layers of the OSI Model. Like a father who loves ALL of his children equally, but in different ways, I also love the other layers, but Layer 2 will always ...