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There is no OSI Layer 0, for example. He also kept referencing Layer 2 incorrectly. Layer 2 handles mostly media access and framing -- not routing. Layer 3 handles the routing, via different routing protocols, usually OSPF (Open Shortest Path First), but there are several others and different implementations. I won't even get into the Layer 4 issue.
Normally I don't comment on something like this, but I feel it's important enough to bring up.
It almost sounded like he was also mixing the TCP/IP Model with the OSI 7 Layer model (1 -7, not 0-6). They are different.
For clarification and for a fun read, check out this explanation on Routergod.
http://routergod.com/ccnabootcamp/osi.html
If I mentioned layer 0 that was a definite mistake. In hind-sight I should probably have used the names rather than the numbers, possibly less confusing though a lot more of a mouthful for me! I started by saying I'd be talking about the 4 layer TCP/IP model. I did mention OSI once, but only to say that I wouldn't be talking about it because it's far too complex and really just used academically.
I'm pretty sure I kept the layers straight for most of the segment, if I didn't then I can only apologise.
Bart.
Perhaps I missed the intro when you noted that. I will go back and listen to it again when I get a chance. I probably should have before I commented. Otherwise, nice work at explaining it. Odds are I jumped the gun and missed the part where you mention the TCP/IP model. Sorry about that! I tend to think in the OSI model too often I guess.
I always enjoyed listening to your talks. Is there any way I can get the show notes. Particulalry the series on terminal tips. I often listen to TMUP while I am driving. Thanks for any help-chin