PERSHNG@IBM.COM.UUCP (06/23/87)
In reply to Earl Shaffer's request, I would suggest the following IBM publications on LU-6.2 (a.k.a., APPC): GC30-3084: SNA Transaction Programmer's Reference Manual for LU Type 6.2 SC30-3269: SNA Format and Protocol Reference Manual: Architecture Logic for LU Type 6.2 The former is a pretty good all-around introduction to LU-6.2 from the point of view of a "user" (i.e., a program running in the "application layer" and using the LU-6.2 services). I recommend it to anyone and everyone who comes knocking at my door wanting an introduction to LU-6.2. The latter (the "FAP Manual") is pretty heavy reading, and tells you more than you ever wanted to know about the workings of the protocols. I have to admit that I haven't read through this tome since about 1983 (before it was available externally), although the ratio of prose to pseudo-code has increased since then, so things have to have improved. There is some general, high-level background on SNA (including a bit on LU-6.2) in the following two publications: GC30-3072: SNA Concepts and Products GC30-3073: SNA Technical Overview All of these are available through your local IBM Branch Office. Hope this helps... John A. Pershing Jr. IBM T.J. Watson Research Center Yorktown Heights, New York