Network options, AIX settings, and environment variables that affect performance

You use the network options command, no, to set the network attributes. To print a list of all configurable attributes and their current values, specify no -a. This can be used to tune an AIX machine for different network attachments.

For information about the no command, see:

  • Optimizing AIX 7.1 Performance Tuning, which is available at http://www.ibm.com/redbooks.
  • IBM eServer pSeries Information Center, which is available at http://publib.boulder.ibm.com/infocenter/pseries/.

For information about the semaphores, see Interprocess communication limits, which is available at http://www-01.ibm.com/support/knowledgecenter/ssw_aix_61/com.ibm.aix.genprogc/ipc_limits.htm.

Use the maxmbuf command to limit the amount of memory used by the communication subsystem. If maxmbuf is set to 0, the value of thewall (no -o thewall) determines the maximum amount of memory to be used by the communication subsystem.