http://www.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/FLASH1 0621
Error attempting to access requested page 2007/11/14, Aaron Walker <[EMAIL PROTECTED]>: > > http://www.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/FLASH1 > 0621 > > Abstract: Identified problem in TCP/IP on z/OS 1.8 which could lead to > degraded performance for remote access to DB2 or other application > on z/OS using the TCP network protocol. Problem is that additional > acknowledgements (ACKS) were being sent without being piggybacked > on data packets as they should have been with NODELAYACK=OFF. > PMR 94943,035 opened on issue. > > Identified workaround: reserve z/OS TCP port on the PORT command in > the TCPIP profile and insure NODELAYACK parameter is OFF. Reserving > port in TCPIP profile appears to make the default behavior of > DELAYACK act as intended -- acknowledgements piggyback on data > packets, reducing the number of packets and network latency > experienced. Thus performance enhanced. > > ---------------------------------------------------------------------- > 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 > ---------------------------------------------------------------------- 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
