Subscribe to William Computer Blog : Entries & Del.icio.us. Add this blog to Technorati Favorites

Apple Broadband Tuner

Apple Broadband Tuner allows you to take full advantage of very high speed FiOS based Internet connections that have a high latency. The installer tweaks some system parameters.

What the Broadband tuner does is change the parameter in the operating system kernel through sysctl. The system parameters are sysctl variables that are set as follows:


net.inet.tcp.sendspace: 131072
net.inet.tcp.recvspace: 358400
kern.ipc.maxsockbuf: 512000

I don’t know why changing such configuration should require an installer. You can actually change the system parameter manually using the sysctl command and copy and paste the following to /etc/sysctl.conf


kern.ipc.maxsockbuf=512000
net.inet.tcp.sendspace=131072
net.inet.tcp.recvspace=358400

I did install it, but it showed no change in speed on my broadband connection.

Comment is disabled on this entry

Commenting is disabled on this entry, if you think you've got something to say please send me an email at wpram@wpram.com.