It describes a "protocol stack," which is a set of rules and formats that interact with each other. For other protocol stacks, see TCP/IP , SDVoE , ATM , SNA and SS7 . See OSI and ISO .

As a matter of fact, when I started writing this post I titled it “Layer 4 of the OSI Model – understanding the application layer,” and then I had to go back and correct myself.

The third layer of the OSI Model, the network layer, is where most network engineers focus their time and expertise. As Darragh commented in my post on the data link layer , Layer 2 is cool but ...

ISO 7498, Open Systems Interconnection, Basic Reference Model. ... IP is a primary protocol of the OSI Model and, as its name suggests, an integral part of TCP/IP.

The OSI model has seven layers, which were all discussed in the aforementioned entry in this series. This particular model didn’t win the battle of networks. It’s more decentralized successor, ...