A couple posts ago, we talked about Layer 1 of the OSI Model — the Physical Layer. Today, we’ll start our climb up the Model with a visit to Layer 2, the Data Link Layer .

The Application Layer in the OSI model is the layer that is the “closest to the end user”. It receives information directly from users and displays incoming data to the user.

Phil Hippensteel provided the following: The data link level, is one which is particularly important in the delivery of audio and is used in every implementation of TCP/IP. Layer 2 (L2), the data link ...

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 ...

4. Transport layer 3. Network layer 2. Data link layer 1. Physical layer. ISO/IEC 7498 defines the OSI model. The ITU (International Telecommunication Union) standardized the model under ITU-T X.224.

If you have anything to do with networked AV and you're not well-versed in the OSI model, we've got you covered. You will learn the fundamental ideas around getting data from host A to host B over a ...

1. In the OSI model, data flows down the transmit layers, over the physical link, and then up through the receive layers.

For more details about each layer, see OSI model. TCP/IP Protocol Stack Example The sending application hands data to the transport layer, which breaks it up into the packets required by the network.

One of the most enduring models in networking is the famous seven-layer OSI model. X.25 roughly, but pretty accurately, is based on the first three layers. And it stopped there. Subsequently ...