PodSnacks: The OSI Reference Model

Sometimes, getting back to the basics is a good idea. Today's PodSnack provides a high-level overview of the OSI Reference Model and the function of its seven layers. The OSI-RM dates back to the mid 1970s, and many aspects of it have altered somewhat since that time. It remains, however, a basic language for talking about networking. Throughout the industry, references to Layer 1, Layer 2, and Layer 3 technologies and services abound. Even the concept of layering comes from the Reference Model. Today, Michel takes you through this model.

And you get brownie points if you can identify the kind of bird heard in the background!

You can listen to (or download) the PodSnack by clicking here, or you can use the Flash player below.

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Published Thursday, January 04, 2007 8:33 AM by mgilbert
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q1/osi-rm.mp3

Comments

# The OSI Reference Model @ Thursday, January 04, 2007 8:34 PM

I'm always a bit amazed at the attention conversation about the OSI reference model generates. For me, being a teaching foundation in telecom technologies, it was ingrained in every course I taught. It really didn't matter if it was ATM, frame relay,

Realtime Community | Unified Communications

# re: PodSnacks: The OSI Reference Model @ Friday, January 05, 2007 6:50 AM

I couldn't agree more, although I do think it makes sense to adjust the presentation to match modern realities. There are some things about modern networks that the OSI Reference Model never anticipated. Switching in the Data Link Layer is one that comes to mind. The dissolving of the Presentation Layer is another.

mgilbert