Does anyone know how to check the current value of initcwnd
? (particularly on Debian [Squeeze])
I've searched, but can't find a definitive answer to this. I haven't changed it, but may want to depending on it's current setting.
Get the source code of your running kernel and inspect include/net/tcp.h
. There you will find:
/* TCP initial congestion window */
#define TCP_INIT_CWND 10
This being the default value, and rarely changed even in userland, it isn't otherwise exposed.
According to CDN planet, you would find it by typing
ip route show
Maybe this assumes that you have changed it yourself first.