On Fri, 16 Jan 2009 14:07:16 -0600, Steve R Wolf <[email protected]> wrote:
>Raymond, > >I don't know if this is your issue but we had FTP problems when we >upgraded to Gigabit OSAs on a z/OS 1.4 system. IIRC the MTU on the ROUTE >(or GATEWAY) statement had a value greater than 1500 (which is the >ethernet max frame size). We had a z/OS 1.7 test system with the same MTU >but it did not fail. We set the MTU to 1500 on 1.4 and the other sides >and it solved the problem. Apparently z/OS 1.4 tries to use the large MTU >and the router dropped the frame but z/OS 1.7 must be smart enough to know >not to send out a ethernet frame larger than 1500. The OSAs replaced an >IBM 2216. > That wouldn't make the login fail - which is the OP's problem. Mark -- Mark Zelden Sr. Software and Systems Architect - z/OS Team Lead Zurich North America / Farmers Insurance Group - ZFUS G-ITO mailto:[email protected] z/OS Systems Programming expert at http://expertanswercenter.techtarget.com/ Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html ---------------------------------------------------------------------- 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
