Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!unmvax!gatech!udel!lap From: lap@udel.EDU (Larry Pearlstein) Newsgroups: comp.protocols.tcp-ip Subject: Re: Info on implementation details... Message-ID: <22009@louie.udel.EDU> Date: 18 Aug 89 23:12:36 GMT Sender: usenet@udel.EDU Reply-To: lap@udel.EDU (Larry Pearlstein) Distribution: usa Organization: University of Delaware Lines: 26 > At what levels (interrupt, daemon, system driver, application > program) are each of the seven network layers generally > implemented in a typical TCP/IP system. I imagine that the I have received a proper scolding for using the "seven layer model" in the same sentence with "TCP/IP". I actually was aware that TCP/IP did not strictly adhere to the ISO model. Still, it has been my impression that a "typical" TCP/IP system might correspond roughly as follows: Physical & data link Ethernet Network IP Transport TCP Session RPC Presentation XDR Application user application Is there some heresy in this conceptualization? I didn't want to spell out the RPC, XDR, ... layers in the question in the hopes of receiving the most general responses. Thanks for all those who responded (either by mail or on the net). If I get a few more mail messages, I'll summarize to the net. Larry Pearlstein lap@huey.udel.edu