A tutorial on the Open Systems Interconnection (OSI) networking reference model plus tips on how to memorize the seven layers. The Open Systems Interconnect (OSI) model is a conceptual framework ...

Layer 7 is the purpose of communicating in the first place. For example, a program in a client workstation uses commands to request data from a program in the server. Common functions at this ...

The OSI model is the basis for most of the modern digital communications. Let’s dive into the seven layers of the OSI model and answers the billion-dollar question: how to protect the transmitted data ...

Whether it’s wired or wireless, most data communications today happens by way of packets of information travelling over one or more networks. But before these networks can work together, though ...

According to the OSI Model, the session layer is where connections are established, managed, and torn down. For connection-oriented network protocols, understanding how the session layer works ...

The third layer of the OSI Model, the network layer ... is simply a Layer 2 device that also does routing (a Layer 3 function). Another key aspect of routers is that each interface on a router ...

Other tips in this series have examined the seven-layer OSI model from the perspective of security. Although security was not the No. 1 goal of the designers of the OSI model, the idea behind ...

To understand network communications, it is essential to learn about the protocol layers (see OSI model). The IP layer 3 breaks apart the data being transmitted into variable length packets ...