Take a reality check: go to Border's or any bookstore and browse books
about networking or internetworking. Tell me if you find the TCP/IP
model there or the OSI model.
As I said before, the time to design according to a model is way passed.
What I do today as a protocol designer is based on my and other people's
experience, not on a model that was invented 20 years ago before nobody
could really envision today's Internet.
In other words: I am not preaching for the ISO or any other model being
a set of design guidelines. What I am trying to say is that when
defining terms (read the subject of this thread) the OSI model is more
precise than the TCP/IP one and is still the one used by people
including myself that have a broader horizon than TCP/IP or the
I can't disagree there, every book on networking I've ever read mentions
TCP/IP and goes into detail concerning OSI, unless you read a book
specificly about TCP/IP.