TCP workload tuning
There are several AIX® tunable values that might impact TCP performance.
Many applications use the reliable Transport Control Protocol (TCP), including the ftp and rcp commands.
Note: The no -o command warns you that when you change tuning options that affect TCP/IP connections, the changes are only effective for connections that are established after the changes are made. In addition, the no -o command restarts the inetd daemon process when options are changed that might affect processes for which the inetd daemon is listening for new connections.