On Fri, 23 Dec 2005 08:52:47 -0500, Shmuel Metz (Seymour J.) <shmuel+ibm- [EMAIL PROTECTED]> wrote:
>... >No, that letter goes all the way back to the 3271, 3272 and 3275, long >before the 3274. I vaguely recall that A was LU0, including BSC, B was >SNA and C was local non-SNA, but ICBW. >... I don't know about the letters associated with the control units, but the A, B, and C in D4x32XX3 doon't match the 3271, 2, 5 descriptions you give. D4B32XX3 is non-SNA (including 3270 LU0). A & C were both SNA. They had different RUSIZEs. I think the different RU sizes were to handle local vs NCP connections to SNA 3270s. Pat O'Keefe ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
