Hi HN. I thought I'd share my first blog article, revisiting the OSI model. Systems interconnectivity is a complex subject, but I've not found many resources that give a practical overview, or link concepts with logical and physical examples. So I've created a couple of new diagrams for reference by technology professionals, and I discuss the continued relevance of the OSI model within the article. All comments & questions welcome. Thanks.
Related recent discussion: <a href="https://news.ycombinator.com/item?id=38004699">https://news.ycombinator.com/item?id=38004699</a>