Although the layered model is one of the first things we learn when starting out with networking—and most textbooks introduce it right at the beginning—there is surprisingly little hands-on practice directly related to network layering.It wasn’t until many years into my career that my understanding of this concept started to really become clear. In this post, I’ll share how I understand “layering.” These concepts seem simple at first, but once you combine them with real-world experience, you’ll continuously uncover deeper insights.How are networks conn...