Path: utzoo!attcan!uunet!seismo!sundc!pitstop!sun!decwrl!ucbvax!A.ISI.EDU!PADLIPSKY From: PADLIPSKY@A.ISI.EDU (Michael Padlipsky) Newsgroups: comp.protocols.tcp-ip Subject: Re: Does TCP/IP "comform" to ISO/OSI? Message-ID: <12425583151.27.PADLIPSKY@A.ISI.EDU> Date: 26 Aug 88 20:06:49 GMT References: <5883@nsc.nsc.com> Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 26 If there were a Supreme Court of Science (and if it hadn't been packed), I'd be delighted to accept a case which held that the protocol sub-suite consisting of TCP-or-UDP-over-IP is a more appropriate realization of stated "OSI" "Reference Model" principles than is the protocol sub-suite consisting of X.25-and-X.75, on a contingency fee basis. However, since as Charles Hedrick rightly observes, "TCP/IP" isn't in the set of International Standards Organization-sanctioned protocols, and since "conform to OSI" really ought to connote "interoperate with other protocols/ protocol interpeters in the ISO-sanctioned set", if there were a Supreme Court of Semantics, I daresay I'd only be willing to attempt to defend your XYZ Corp.'s blurb on a win-lose-or-draw flat fee basis-- and that a large enough one to be able to retire comfortably on. (And if I won, I'd be sure that that court was packed.) Or, if legal metaphors are not to your taste, a fair way of answering your question is, "Not in any practical sense, even though a sufficiently subtle protocol theologian could probably have a lot of fun with it." cheers, map P.S. In case the reference to the "ARM" in Phil Wood's message was not familiar, it stands for the ARPANET Reference Model, which preexists the ISO/OSI RM in fact, though not on paper (i.e., the ARM didn't get written up [or down] until some years after it had been "invented" ... and used). -------