>Now, why is the TCP/IP stack UNIX based? Can't answer that one! I heard a story, many aeons ago, that the original TCP/IP for ESA/OS390 was a direct port from VM, written in PASCAL. And, it was a PIG! It took a lot of progammers to support it, 7-24.
One weekend, two of them took the original RFC (?term), and re-wrote it from scratch. The specs included UNIX functions and services to do things, so they used USS to do everything they could, so they didn't have re-invent the wheel. The only thing they didn't do was the stack, since VTAM already had one, and it was pretty good. This made it to OS/390 V2.5, I believe. And, they dropped to two support people. They also made improvements in. 2.7, IIRC. And, the performance improved drastically. We had 1000's of users on it, where I was before, and it didn't use very much (along with VTAM). I have no independent proof of the above, but I trust my source. - -teD I’m an enthusiastic proselytiser of the universal panacea I believe in! ---------------------------------------------------------------------- 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
