Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!ucsd!ucbvax!ncrcce.UUCP!pasek From: pasek@ncrcce.UUCP ("Michael A. Pasek") Newsgroups: comp.protocols.ibm Subject: Re: Looking for a Good Reference on SNA Message-ID: <8909292212.AA06892@jade.berkeley.edu> Date: 29 Sep 89 18:31:49 GMT Sender: daemon@ucbvax.BERKELEY.EDU Reply-To: "Michael A. Pasek"Organization: The Internet Lines: 30 In article <8909282031.AA18413@jade.berkeley.edu> Adnan Yaqub Anybody know of a good introductory reference on SNA in particular and >(possibly) IBM protocols in general? I don't know of a good "introductory" reference, but if you're looking for reference materials (although SOMEWHAT outdated in relation to the latest and greatest IBM products), I can suggest two IBM publications: SC30-3112 SNA Format and Protocol Reference Manual This is the "blueprint" that IBM built SNA from starting in 1979. They have just recently (with ACF/VTAM V3R2) implemented some of the elements that were defined way back then. Besides giving the nitty- gritty about formats and logic, it also has English descriptions of how stuff works (or was intended to work.....note that IBM always disclaims that any of its products follow any of its protocols). GA27-3136-6 SNA Reference Summary This is NOT to be confused with the -7, -8, -9, etc. versions called "SNA Formats". This is THE reference manual for byte/bit definitions and meanings (sometimes the meanings are not all that clear). There is more than what's in this manual, but they've put that info into "LYxx-xxxx" documents (licensed), so you can't get at it. Note that the -7 on up manuals have had significant information removed. If you cannot get the -6 version, try ordering manual number GT00-2480-0 from Mechanicsburg (wherever that is....). M. A. Pasek Switching Software Development NCR Comten, Inc. (612) 638-7668 CNG Development 2700 N. Snelling Ave. pasek@c10sd3.StPaul.NCR.COM Roseville, MN 55113