>Yes, IP drops packets. But also, yes, TCP keeps track of it all and requests >retransmissions.
Not according to the traces. If TCP/IP is so robust, why has it NEVER happened in 7 years under SNA (how long we've had the TN3270 client we use), and it always happens under TCP/IP. We have MACROS (scripts) coded for call centres to screen scrape an old CICS application and answer customers' questions. They have never failed under SNA. The only change we make (and I know it's the only change because I am co-ordinating it and controlling it), is we make the TN3270 client talk to TCP/IP. Invoke the MACRO and BOOM!. Corrupted (incomplete) data sent to the host, the application session gets terminated and the user is blown to a blank sign-on screen. Doesn't even have the logo and sign-on crap we display when the PC first connects to the mainframe. Every time. Not intermittent. No re-transmission requests. No session. No data. . -teD Marching to the beat of a different flute ---------------------------------------------------------------------- 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
