First, I understand that this is a detailed question that probably goes above and beyond information required for ICND1. However, I want to learn more about how a PDU transitions across the layers and gets encapsulated and decapsulated.
In this video, Anthony Sequeira examines the OSI computer networking model.
In this Cisco video blog, Anthony Sequeira walks students through the difference between physical and logical topologies, and also teaches students about the various options for physical topologies.
In this video, Anthony Sequeira explains the functions of the Transport Layer of the OSI Model.
This blog post teaches us just how easy it is to remember the names of our Protocol Data Units. We know from our ICND1 training that we have a special name for each Protocol Data Unit at the bottom four layers of the OSI Reference Model. First of all, just to review - the bottom four layers of the OSI Reference Model are as follows: