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Related: The OSI Networking Model defines 7 layers (or stacks) to clearly define and separate the duties of each level of the networking. Having clear levels ma
by Ruq 4y ago
Related: The OSI Networking Model defines 7 layers (or stacks) to clearly define and separate the duties of each level of the networking. Having clear levels makes troubleshooting and debugging layers.
In practice there's only 4 or 5 layers depending on who you ask.
- samstave 4y agoThanks - I have always mentally separated 'stacks' from 'layers', specifically in networking. I imagined stacks as tech1+tech2+techN I just hadnt heard that phrase before... 30 years deep in ops.
- b0afc375b5 4y agoWhen I read anything about the OSI model it always reminds me of this article https://news.ycombinator.com/item?id=26607983 https://news.ycombinator.com/item?id=26607983 > I have said before that I believe that teaching modern students the OSI model as an approach to networking is a fundamental mistake that makes the concepts less clear rather than more. The major reason for this is simple: the OSI model was prescriptive of a specific network stack designed alongside it, and that network stack is not the one we use today. In fact, the TCP/IP stack we use today was intentionally designed differently from the OSI model for practical reasons.