The OSI reference model and how it relates to TCP/IP
Earlier today, whilst on a client site, waiting for a PC to rebuild (5 times - and I thought my desktop support days were over… maybe that’s why they should be…), I saw a diagram of the open systems interconnection (OSI) reference model pinned up above a desk. I’ve seen many OSI model representations over the years, but this one was probably the clearest example I’ve seen in a while (especially for TCP/IP), so I’ve reproduced it here:
Posted: 6:00 on Monday 20 March 2006 under TCP/IP.
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Comment from Anonymous
Time: Monday 22 May 2006, 5:44
Thank you for this clear “picture.” As a hands on / graphical person, this makes more sense!

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