What does "Use optimized network settings" in ATTO XtendSAN do?

For optimal 10GbE performance, the following are added to the file /etc/sysctl.conf on clients running Linux or macOS 10.9 and greater when the Use optimized network settings checkbox is selected upon driver installation:


The net.inet.tcp.sendspace and net.inet.tcp.recvspace system control values determine the client OS transmit and receive buffer sizes.

The net.inet.tcp.delayed_ack system control determines when TCP delayed acknowledgment is enabled. The system control is changed from the default value of 0 (no delayed acks) to 3 (autodetect).
Jumbo frames support for the ATTO Technology FastFrame and ThunderLink 10GbE network adapter is enabled using the Mac OS X network preferences pane.

Matthew Jensen
2018-10-20 16:47