The Linux directory /proc/sys/net/ipv4 contains default settings which tune different parts of the IPv4 networking stack. In many cases Onload takes its default settings from the values in this directory. In some cases the default can be overridden, for a specified processes or socket, using socket options or with Onload environment variables. The following sections identify the default Linux values and how Onload tuning parameters can override the Linux settings.
Refer to the Parameter Reference for details of environment variables.